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<title>freepatentsonline.com: Pulse or digital communications</title>
<link>http://www.freepatentsonline.com/result.html?query_txt=ccl/375%20and%20isd/04/29/2008&amp;uspat=on</link>
<description>USPTO Class 375 Pulse or digital communications</description>
<language>en-us</language>
<lastBuildDate>Wed Apr 30 16:35:25 EDT 2008</lastBuildDate>

<item>
<title><![CDATA[Method and system for reducing noise in a multi-carrier signal]]></title>
<link>http://www.freepatentsonline.com/7366264.html</link>
<description><![CDATA[A receiver  100  for receiving a multi-carrier signal comprises detection means for detecting  801  the presence of impulse interference within the signal and identifying one or more samples of the signal affected by the impulse interference, means for selecting samples to be blanked, means for blanking the selected samples and means  805  for estimating the blanked signal. The selected samples comprise those samples (l 0  to l 0 +k) identified as being affected by impulse interference and at least one of the following: a number of samples x 1  preceding the said identified samples (l 0  to l 0 +k) or a number of samples x 2  following the said identified samples (l 0  to l 0 +k). The blanking means may define the length of a blanking window  301  to have one of a plurality of different predetermined lengths, using the smallest of the predetermined lengths sufficient to encompass the selected samples.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Space time block coded transmit antenna diversity for WCDMA]]></title>
<link>http://www.freepatentsonline.com/7366266.html</link>
<description><![CDATA[A mobile communication system is designed with an input circuit coupled to receive a first plurality of signals (r j (i+τ j ), i=0−N−1) during a first time (T 0 -T 1 ) from an external source and coupled to receive a second plurality of signals (r j (i+τ j ), i=N−2N−1) during a second time (T 1 -T 2 ) from the external source. The input circuit receives each of the first and second plurality of signals along respective first and second paths (j). The input circuit produces a first input signal (R j 1 ) and a second input signal (R j 2 ) from the respective first and second plurality of signals. A correction circuit is coupled to receive a first estimate signal (α j 1 ), a second estimate signal (α j 2 ) and the first and second input signals. The correction circuit produces a first symbol estimate (  S 1 ) in response to the first and second estimate signals and the first and second input signals. The correction circuit produces a second symbol estimate (  S 2 ) in response to the first and second estimate signals and the first and second input signals.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation]]></title>
<link>http://www.freepatentsonline.com/7366243.html</link>
<description><![CDATA[A technique for transmitting a spread spectrum signal using plural non-contiguous frequency bands separated by segments of frequency spectrum excluded from use involves: generating a digital time-domain spread spectrum signal; converting the time-domain signal to a frequency-domain signal via an FFT; excising a portion of the frequency-domain signal by selectively removing frequency bins of the frequency-domain signal to cause spectral nulling of the transmit signal at the frequencies of the excluded segments; and converting the excised frequency-domain signal to an excised time-domain signal via an inverse FFT, which is then converted to an analog signal for transmission. The non-contiguous spectrum selection technique is implemented in a transmitter that transmits data communication signals or navigation signals, and permits use of plural, non-contiguous frequency bands to transmit a wide bandwidth signals that cannot be transmitted in a continuous frequency band due to constrains in the allocated frequency spectrum available for transmission.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and modem for phase synchronization and tracking]]></title>
<link>http://www.freepatentsonline.com/7366256.html</link>
<description><![CDATA[In a method and device to demodulate a signal in a packet communications system, the signal comprises at least one burst representing data samples relative to one or more users. The method comprises at least one step of phase estimation and tracking during at least the duration of the burst in using a frequency assumption test.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Clock data recovery with double edge clocking based phase detector and serializer/deserializer]]></title>
<link>http://www.freepatentsonline.com/7366267.html</link>
<description><![CDATA[A programmable logic device (“PLD”) is augmented with programmable clock data recover (“CDR”) circuitry to allow the PLD to communicate via any of a large number of CDR signaling protocols. The CDR circuitry may be integrated with the PLD, or it may be wholly or partly on a separate integrated circuit. The circuitry may be capable of CDR input, CDR output, or both. The CDR capability may be provided in combination with other non-CDR signaling capability such as non-CDR low voltage differential signaling (“LVDS”). THE CDR circuitry is provided with a programmable serializer and/or deserializer that can support higher data clock rates than the highest clock rate associated with the reference clock signal or clock signal from a phase locked loop circuit.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Apparatus and method for receiving data in a mobile communication system using an adaptive antenna array technique]]></title>
<link>http://www.freepatentsonline.com/7366225.html</link>
<description><![CDATA[A mobile communication system receives a reception signal of a reception signal, and performs a control operation such that a weight for generating a reception beam is calculated using a first technique if a difference between an error sum value at a current time and an error sum value at a previous time is greater than an absolute value of a first threshold or the error sum value at the current time is greater than or equal to a second threshold, and performs a control operation such that the weight is calculated using a second technique if the different between the error sum value at the current time and the error sum value at the previous time is less than or equal to the absolute value of the first threshold and the error sum value at the current time is less than the second threshold.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Time domain estimation of IQ imbalance in a wireless OFDM direct conversion receiver]]></title>
<link>http://www.freepatentsonline.com/7366255.html</link>
<description><![CDATA[An OFDM receiver is configured for suppressing pilot energy, and DC energy, from received I and Q components prior to estimating amplitude and phase imbalances of the received I and Q components. Hence, amplitude and phase imbalances can be estimated accurately despite channel fading and frequency variations between the transmitter and receiver.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and device for the automatic selection of the bit rate in high frequency transmissions]]></title>
<link>http://www.freepatentsonline.com/7366232.html</link>
<description><![CDATA[A method and device for determining at least one traffic parameter in a data transmission system including at least one transmitter and one receiver, wherein the receiver includes a modem with equalizer. The method includes determining at least one piece of data given by the equalizer, wherein the piece of data includes the equalization error E i ; and determining one or more traffic parameters in taking account of the data provided, the fixed quality of service QoS and a relationship linking the quality of service and the equalization error E i .]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Assembly for measurement demodulation and modulation error detection of a digitally modulated receive signal]]></title>
<link>http://www.freepatentsonline.com/7366233.html</link>
<description><![CDATA[An arrangement for measurement demodulation and modulation error measurement of a digitally modulated receive signal, which has a receive filter and a following demodulator for error compensation and for determining the ideal symbol samples. The measuring signal that is filtered in a reference filter and weighting filtered is then evaluated in a following evaluation circuit. The output signal of the demodulator is fed via a measuring filter to the evaluation circuit and the weighting filter function is formed by cascaded filter functions of the receiver filter and measuring filter.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Synchronization detecting apparatus]]></title>
<link>http://www.freepatentsonline.com/7366228.html</link>
<description><![CDATA[In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation process, if a Synch Word to be demodulated is included in any of groups into which a plurality of symbols are divided, the Sync Word is demodulated by using a channel estimation value obtained with the channel estimation process using not this group but another group.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Edge incremental redundancy support in a cellular wireless terminal]]></title>
<link>http://www.freepatentsonline.com/7366254.html</link>
<description><![CDATA[A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, and an IR processing module. The baseband processor receives an analog signal corresponding to a data block and samples the analog signal to produce samples. The equalizer receives the samples from the baseband processor, equalizes the samples, and produces soft decision bits corresponding to the data block. The equalizer may be implemented as a distinct processing component or may be performed by the baseband processor or system processor. The system processor receives at least the soft decision bits and initiates IR operations. The IR processing module receives the soft decision bits of the data block and performs IR operations on the data block in an attempt to correctly decode a corresponding data block.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Wireless communication system and method using grouping maximum likelihood detection]]></title>
<link>http://www.freepatentsonline.com/7366222.html</link>
<description><![CDATA[Disclosed is a method for increasing a data transfer rate without an increase in the whole bandwidth using intrinsic spreading codes and orthogonal codes. The method uses interleaving, OFDM modulation/demodulation, and maximum likelihood detection (MLD) to overcome the effects of multipath fading or signal interference, determines grouped optimal values by a grouping method of dividing the intrinsic spreading codes in series, and calculates an integrated optimal value for all the intrinsic spreading codes using the grouped optimal values, thereby reducing the complexity of MLD according to the length of the intrinsic spreading code and acquiring an improved performance.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Carrier recovery device of digital TV receiver]]></title>
<link>http://www.freepatentsonline.com/7366257.html</link>
<description><![CDATA[A carrier recovery device of a digital TV receiver is disclosed, which can stand a multiple path noise. In the carrier recovery device, it is possible to recover a carrier with a phase error component of the carrier existing on data blocks as well as a carrier signal, whereby it has the carrier recovery function even in case a carrier recovery unit is not operated properly.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Selective data inversion in ultra-wide band communications to eliminate line frequencies]]></title>
<link>http://www.freepatentsonline.com/7366268.html</link>
<description><![CDATA[A method for generating an ultra-wide-band (UWB) having a reduced discrete frequency component defines frame synchronization signal and an inverted frame synchronization signal. As each frame is generated, the method randomly selects the frame synchronization signal or the inverted frame synchronization signal to be included with the frame. The frame synchronization signal is detected by a correlator and the magnitude of the correlation is used to indicate the detection of the frame synchronization signal.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Adaptive equalization apparatus and adaptive equalization method]]></title>
<link>http://www.freepatentsonline.com/7366234.html</link>
<description><![CDATA[An adaptive equalization apparatus comprises an equalizer for equalizing a playback signal read from a recording medium, using tap coefficients; a maximum likelihood decoder for subjecting an equalized signal outputted from the equalizer to maximum likelihood decoding; a first delay unit for delay-adjusting the playback signal to make the signal coincide with the timing of a tentative decoded signal that is obtained in the process of maximum likelihood decoding; a second delay unit for delay-adjusting the equalized signal to make the signal coincide with the timing of the tentative decoded signal; and a coefficient adaptive controller for adaptively controlling the tap coefficients so that an error in the maximum likelihood decoding is minimized, on the basis of the tentative decoded signal, an output of the first delay unit, and an output of the second delay unit.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and system for antenna interference cancellation]]></title>
<link>http://www.freepatentsonline.com/7366244.html</link>
<description><![CDATA[A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of the antennas. A cancellation device can suppress antenna interference by generating an estimate of the interference signal and subtracting the estimate from the interference signal. The cancellation device can generate the estimate based on sampling signals on an antenna that generates the interference or on an antenna that receives the interference. The cancellation device can comprise a model of the crosstalk effect. Transmitting test signals on the communication system can define or refine the model.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion]]></title>
<link>http://www.freepatentsonline.com/7366258.html</link>
<description><![CDATA[A system for mitigating impairment in a communication system includes a delay block, a signal level block, a moving average window block, an impulse noise detection block, and a combiner. The delay block receives and delays each chip of a plurality of chips in a spreading interval. The signal level block determines a signal level of each chip of the plurality of chips in the spreading interval. The moving average window block determines a composite signal level for a chip window corresponding to the chip. The impulse noise detection block receives the signal level, receives the composite signal level, and produces an erasure indication for each chip of the plurality of chips of the corresponding chip window. The combiner erases chips of the plurality of chips of the spreading interval based upon the erasure indication.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Wideband enhanced digital injection predistortion system and method]]></title>
<link>http://www.freepatentsonline.com/7366252.html</link>
<description><![CDATA[A system for linearizing RF amplifiers employing baseband predistortion techniques provides additive or multiplicative predistortion of the quadrature (I/Q) input signal. The predistorter uses a discrete-time polynomial kernel to model the inverse transfer characteristic of the amplifier, providing separate and simultaneous compensation for nonlinear static distortion, linear dynamic distortion and nonlinear dynamic effects including reactive electrical memory effects. A predistortion controller monitors and compares the amplifier output with the quadrature input signal to compute estimates of the residual output distortion of the amplifier. Output distortion estimates are used to adaptively compute the predistorter parameter values in response to changes in the amplifier's operating conditions. The computed values are used in the predistorter. The predistortion system of the invention may provide broadband linearization of RF amplification circuits including, but not limited to, dynamic load modulation amplifiers.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Modifying hopping sequences in wireless networks]]></title>
<link>http://www.freepatentsonline.com/7366223.html</link>
<description><![CDATA[The present invention can be used to modify hopping sequences and families of hopping sequences. In one embodiment the present invention includes modifying a family of hopping sequences by eliminating a resource from a plurality of resources used by the family of hopping sequences, eliminating a hopping sequence from the family of hopping sequences, and creating a new family of hopping sequences by replacing the eliminated resource in each remaining hopping sequence using the eliminated hopping sequence. Embodiments of the present invention may further include repeating eliminating a resource, eliminating a hopping sequence, and creating a new family of hopping sequences, until the new family of hopping sequences uses a desired number of resources.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method for generating a preamble sequence group]]></title>
<link>http://www.freepatentsonline.com/7366229.html</link>
<description><![CDATA[Provided is a method for generating a preamble sequence group. The method includes creating a preamble sequence, calculating a cross-correlation value between sequences using the created preamble sequence, determining a limit cross-correlation value using the cross-correlation value to construct a preamble set used in the communication system, calculating a preamble set that satisfies the determined limit cross-correlation value, and terminating construction of the preamble set.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Separate FEC decoding and iterative diversity reception]]></title>
<link>http://www.freepatentsonline.com/7366261.html</link>
<description><![CDATA[Methods, apparatuses, and systems are presented for deriving data from an error correction encoded composite signal involving (a) receiving a composite signal comprising contributions from a plurality of individual signals transmitted over different paths representing a common data sequence encoded using an error correction code, (b) calculating soft values of a first type taking into account the received composite signal and soft values of a second type, (c) generating symbol outputs by taking into account soft values of the first type, (d) calculating soft values of the second type taking into account symbol outputs, (e) feeding back soft values of the second type, (f) iteratively updating soft values of the first type, symbol outputs, and soft values of the second type by repeating previous steps, and (g) performing error correction decoding taking into account updated symbol outputs, to generate error correction decoded outputs.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[System for detecting the characteristics of a time varying multipath component]]></title>
<link>http://www.freepatentsonline.com/7366265.html</link>
<description><![CDATA[A system for receiving a composite signal including a main component and a multipath component includes a demodulator chain having adaptive circuitry controllable in response to a control signal to compensate for the multipath component. In this system, a control signal generator includes a phase error estimator, which generates a signal representing an estimate of the phase error between the received main component and the received multipath component. A controller generates the control signal in responsive to the phase error signal.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Calibration in MIMO systems]]></title>
<link>http://www.freepatentsonline.com/7366245.html</link>
<description><![CDATA[Aggregate channel reciprocity in a wireless system is supported by calibrating transmitter/receiver pairs.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Efficient MLSE equalizer implementation]]></title>
<link>http://www.freepatentsonline.com/7366260.html</link>
<description><![CDATA[A path metric computation method and apparatus for estimating a maximum likelihood sequence in a wireless communication network. The proposed method applies the statistical properties of estimated channel impulse response to reduce the computational load. A threshold is set to check the significance of each autocorrelation value in order to determine the contribution to the path metric increment. The corresponding terms in the path metric equation with insignificant autocorrelation values are thus discarded to reduce the complexity of path metric computation.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Sub-block domain transformation multiple signal processing]]></title>
<link>http://www.freepatentsonline.com/7366231.html</link>
<description><![CDATA[Embodiments of an Ethernet transceiver are disclosed. The Ethernet transceiver includes a plurality of digital signal streams, at least one digital signal stream being coupled to another of the digital signal streams. A domain transformer transforms sub-blocks of each of the plurality of the digital signal streams from an original domain into a lower complexity domain. A processor joint processes the transformed sub-blocks of the digital signal streams, each joint processed digital signal stream sub-block is influenced by other digital signal streams sub-blocks. An inverse transformer inverse transforms the joint processed signal streams sub-blocks back to the original domain.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and apparatus for improved efficiency in an extended multiple antenna communication system]]></title>
<link>http://www.freepatentsonline.com/7366250.html</link>
<description><![CDATA[Methods and apparatus are provided for improved efficiency in an extended multiple antenna communication system. A multiplier is employed on the number of points in the FFT that is greater than the multiplier on the frequency (bandwidth) of the legacy 802.11 a/g system. In one exemplary implementation, a 256 point FFT is employed in 40 MHz (with a 4N multiplier on the number of possible tones and a 2N multiplier on the frequency). While the efficiency for the OFDM symbol is improved, additional overhead is required in the preamble training (the length of the preamble is proportional to the number of tones in the FFT). Thus, a number of preamble constructs are provided that couple the improved efficiency with shorter preambles. In addition, an improved tone design provides additional efficiency gains.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Clock and data recovery device coping with variable data rates]]></title>
<link>http://www.freepatentsonline.com/7366271.html</link>
<description><![CDATA[A clock and data recovery (CDR) device is disclosed that is capable of recovering a clock signal from a data signal that has a variable data rate. The CDR device includes a reference clock generating section for dividing a basic clock by a first predetermined value P, synchronizing the clock and multiplying the clock by a second predetermined value Q to generate a reference clock corresponding to the variable data rate; a clock and data recovery section for receiving the transmitted data, recovering a clock and data from the received data and outputting the recovered clock and data; and a control section for generating a control signal according to the variable data rate and sending the signal to the reference clock generating section and the clock and data recovery section.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Transmitter for transmitting a combined clock signal and a digital data signal modulated on a carrier wave]]></title>
<link>http://www.freepatentsonline.com/7366251.html</link>
<description><![CDATA[A transmitter circuit for transmitting a sine wave modulated with digital data, where the sine wave includes a clock signal, and a receiver circuit for demodulating the transmitted sine wave, where the receiver circuit extracts the clock signal and the digital data from the sine wave. The transmitter circuit includes digital logic components that allow the transmitted sine wave to include at least one bit per cycle of the sine wave, and the receive circuit includes digital logic components that allow the clock signal and the digital data to be extracted from the sine wave. In various embodiments, the transmitted sine wave includes one bit per cycle, one bit per half cycle, multiple bits per cycle and multiple bits per half cycle.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Device and method for transmitting and receiving data by a transmit diversity scheme using multiple antennas in a mobile communication system]]></title>
<link>http://www.freepatentsonline.com/7366253.html</link>
<description><![CDATA[In a mobile communication system, receivers measure channel characteristics using a received reference channel signal. The receivers determine a weight which has orthogonality with respect to each of a preset number of weight vectors in the mobile communication system and has the highest signal-to-interference-and-noise ratio, and feedback the weight and the corresponding signal-to-interference-and-noise ratio to the transmitter. The transmitter interprets the feedback information output from the receivers and determines receivers having feedback information which are orthogonal to each other and have the maximum throughput as an addition capacity when transmitted simultaneously, and determines weights based on the feedback information of the receivers having the maximum throughput. By applying the determined weights to the antennas using a well-known beam forming scheme, data can be transmitted to each of the determined receivers. Therefore, the present invention can maximize the efficiency in transmission capacity even with a simple transmitting and receiving structure.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Frequency estimation method of MB-OFDM UWB system using time frequency hopping strategy]]></title>
<link>http://www.freepatentsonline.com/7366262.html</link>
<description><![CDATA[A frequency estimation method of multiband (MB)-orthogonal frequency division multiplexing (OFDM) ultra wide band (UWB) system using an Alt-PHY time frequency (TF) hopping strategy based on IEEE 802. 15. 3a. includes the steps of: a) selecting a predetermined number of frequencies among a plurality of center frequencies based on a predetermined number of OFDM symbols and estimating relative frequency offsets for selected frequencies; b) obtaining an average relative frequency offset by averaging the estimated relative frequency offsets when two or more frequencies are selected at the step a); and c) obtaining real frequency offsets for each of the center frequencies by transforming the obtained average relative frequency offset to the real frequency offsets and compensating a frequency offset caused by a transmitting/receiving local oscillators based on the obtained real frequency offsets.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Channel estimator]]></title>
<link>http://www.freepatentsonline.com/7366259.html</link>
<description><![CDATA[The present invention is a channel estimator based on the values of received data and on a priori probabilities only of received symbols. The channel estimator includes a symbol probability generator, a noise variance estimator and a channel tap estimator. The symbol probability generator generates a priori probabilities only of transmitted symbols found in the received signal(s). The noise variance estimator estimates at least one noise variance corrupting the received signal(s). The channel tap estimator generates channel estimates from the received signal(s), the a priori probabilities and the noise variance(s).]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals]]></title>
<link>http://www.freepatentsonline.com/7366227.html</link>
<description><![CDATA[In a spread spectrum system, methods and despreader architectures for despreading the received spreaded codes with the use of a single correlator and a single correlation code is provided. Before despreading the incoming received spreaded codes, a single correlation code is generated using a symbol from a set of symbols that has been mapped into a set of differential encoded PN codes. Despreading output samples for each received spreaded code are obtained by correlating the received spreaded code with this single correlation code. Correlation is accomplished by multiplying each received sample of the received spreaded codes with the correlation code samples and accumulating the products of this multiplication. After correlation, the index for the maximum or minimum peak of the despreading output samples for each code is identified. This index can then be mapped into a symbol corresponding to the transmitted information. Corresponding despreader architectures comprise of a number of taps attached to a series of shift registers. Received samples of each received spreaded codes are inputted into the shift registers. The despreader architectures accumulates the products of multiplication of the value of the shift register with a predetermined value associated with each tap to produce the despreading output samples of a received spreaded code. It identifies the despreading output index producing the maximum of the absolute value of the despreading output and maps said index into a symbol corresponding to the transmitted information.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Power control in mobile radio communications systems]]></title>
<link>http://www.freepatentsonline.com/7366230.html</link>
<description><![CDATA[A power control unit ( 500 ) for a power control system in a mobile communication system, the power control unit ( 500 ) comprising an inner power control loop element ( 503, 507 ), which generates a transmit power control command ( 504 ), and an outer power control loop element ( 516 ) connected to the inner power control loop element ( 503, 507 ), the outer power control loop element ( 516 ) being configured for providing a target value ( 506 ) to the inner power control loop element ( 503, 507 ). The outer power control loop element ( 516 ) comprises a soft information estimator ( 509 ) connected to at least one outer loop regulator ( 501, 502 ), wherein the soft information estimator ( 509 ) is configured to provide a soft information estimate ( 510 ) to the at least one outer loop regulator ( 503 ).]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Decoder and method of decoding using pseudo two pass decoding and one pass encoding]]></title>
<link>http://www.freepatentsonline.com/7366240.html</link>
<description><![CDATA[A method of processing video frame data includes the steps of: receiving a video frame; partially decoding the video frame; fully decoding the video frame to produce macroblocks; determining video data parameters from the partially decoded video frame or both the partially and fully decoded video frame; and encoding the macroblocks based on the determined video data parameters to provide a compressed video frame for subsequent display.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and device for transmitting packet data in mobile communication system]]></title>
<link>http://www.freepatentsonline.com/7366272.html</link>
<description><![CDATA[There is provided a device and method for transmitting packet data in a mobile communication system. A sub-code generator generates a plurality of sub-codes with the same or different code rates for the input of a PLP (Physical Layer Packet) information bit stream. A controller determines a minimum data rate by which the number of the modulation symbols of a sub-code generated by a predetermined modulation method is equal to or greater than the number of transmittable modulation symbols for each time period. A symbol pruner prunes part of the modulation symbols of the sub-code to make the number of the modulation symbols of the sub-code equal to the number of transmittable modulation symbols for the time period, if the number of the modulation symbols of the sub-code is greater than the number of transmittable modulation symbols for the time period.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method for transmitting optimally interleaved data in a MIMO telecommunication system]]></title>
<link>http://www.freepatentsonline.com/7366249.html</link>
<description><![CDATA[The present invention relates to a method for transmitting data including a bit interleaving step for permutating encoded data bits Tb before their transmission in the form of modulation symbols over Nt transmitting antennas. According to the invention, the bit interleaving step involves bit demultiplexing DMXS for extracting bit sequences Bsj (for j=0 to Nt) from the encoded data bits Tb, sequence interleaving SRIS for permutating the bits of each sequence Bsj (for j=0 to Nt), sequence storing and segmenting SQSS for dividing each interleaved sequence Isqj (for j=0 to Nt) into successive segments Psgj, and segment shifting SGS for applying circular shifts to simultaneous different segments Psgj (for j=1 to Nt). The invention enables to ensure that consecutive encoded bits see a maximum number of different communication channel states, and thus favours data diversity.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and system for compressing groups of basic media data units]]></title>
<link>http://www.freepatentsonline.com/7366239.html</link>
<description><![CDATA[The invention provides a method for compressing a group of basic media data units, the method comprising the steps of: (a) receiving the group of basic media data units; (b) for each basic media data unit of the group performing the steps of: (b1) partially decoding the basic media data unit; (b2) determining whether to reduce the size of the basic media data unit of the received block in view of a predefined relationship between a predefined compression ratio (PCRA) and a residual ratio (RR); (b3) reducing the size of the basic media data unit, in view of the determination, such that an optimal reduction to quality degradation of the basic media data block is achieved; and (b4) partially encoding the basic media data unit.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[UWB demodulating apparatus]]></title>
<link>http://www.freepatentsonline.com/7366235.html</link>
<description><![CDATA[A demodulated signal is to be generated by use of a first detection signal detected a presence/absence of a signal according to a correlation between a reception signal PPM-modulated at a pulse interval of T and a pulse variation width of τ and the reception signal delayed with a time (T+τ), a second detection signal detected a presence/absence of a signal according to a correlation between the reception signal and the reception signal delayed with a time (T), and a third detection signal detected a presence/absence of a signal according to a correlation between the reception signal and the reception signal delayed with a time (T−τ). By thus combining a plurality of delayed detections, it is possible to obtain a UWB demodulating apparatus configured with a circuit suited for integrated circuit fabrication.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Source adaptive system and method for 2D iDCT]]></title>
<link>http://www.freepatentsonline.com/7366236.html</link>
<description><![CDATA[This invention discloses a fast two-dimensional inverse Discrete Cosine Transform (iDCT) that adapts to compressed video source statistics to reduce execution time. iDCT algorithms for sparse blocks eliminate calculations for some zero coefficients and are implemented with quad-word parallel single-instruction-multiple-data (SIMD) multimedia instructions. It is observed that end-of-block marker value histograms vary little within single shots. An adaptive control mechanism is proposed that selects the optimal set of iDCTs to prepare for an entire shot from its first frames (to reduce software overheads and penalties). This introduces no degradation of decoded video quality as compared with a conventional SIMD 8×8 iDCT implemented with Intel MMX instructions.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Adaptive transmit antenna diversity apparatus and method in a mobile communication system]]></title>
<link>http://www.freepatentsonline.com/7366247.html</link>
<description><![CDATA[Apparatus and method are disclosed for selecting a transmit antenna diversity scheme according to a variation speed of a fading channel in a mobile communication system. A user equipment (UE) estimates a channel response of a pilot channel by receiving a pilot channel signal from a Node B; estimates a variation speed of a fading channel by using the estimated channel response and determining a transmit antenna diversity scheme suitable to the variation speed of the fading channel; and transmits feedback information including the determined transmit antenna diversity scheme to the Node B, so that the Node B can determine a transmit antenna diversity scheme for a channel signal to be transmitted to the UE based on the transmit antenna diversity scheme information included in the feedback information. In this way, the Node B adaptively applies a transmit antenna diversity according to a channel condition.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Low complexity real-time video coding]]></title>
<link>http://www.freepatentsonline.com/7366237.html</link>
<description><![CDATA[In a first exemplary media implementation, one or more processor-accessible media include processor-executable instructions that, when executed, direct a device to perform actions including: comparing an accuracy indicator to at least one threshold, the accuracy indicator corresponding to a reference macroblock selected for a target macroblock; ascertaining a refinement case from multiple refinement cases based on the comparing, each refinement case of the multiple refinement cases defining multiple test points in relation to the reference macroblock; and analyzing the ascertained refinement case with regard to the target macroblock. In a second exemplary media implementation, one or more media include processor-executable instructions that, when executed, direct a device to perform actions including: determining if two chrominance sums have magnitudes that are each less than a first product and four luminance sums have magnitudes that are each less than a second product; and if so, forwarding all zero values for a macroblock.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and apparatus for vector based sequence generation]]></title>
<link>http://www.freepatentsonline.com/7366201.html</link>
<description><![CDATA[A vector-based sequence generator ( 100 ) provides for a general architecture that can be easily adapted to any random length sequence and any random number of bits per access. The sequence generator ( 100 ) can also produce a new access on every hardware clock cycle, thereby maximizing the efficiency of the bit sequence requesting process.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Optimized high rate space-time codes for wireless communication]]></title>
<link>http://www.freepatentsonline.com/7366248.html</link>
<description><![CDATA[A space-time coding arrangement for wireless communications is disclosed where the codes are generated through stochastic approximation. The codes can be optimized over a wide range of performance metrics, receiver structures, and channel characteristics.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[System and method for the detection of presence of a signal and its synchronization, for a frequency hopping system working in a disturbed environment]]></title>
<link>http://www.freepatentsonline.com/7366224.html</link>
<description><![CDATA[A method and device are disclosed for the detection and synchronization of a signal in a frequency-hopping system. The method has a step, for each frequency F( 1 ) . . . F(M), of selecting the K samples corresponding to the greatest values of the signal, and their positions. For a given position, the M greatest values are combined which are selected from among K samples on each frequency having the given position. The greatest combined value is kept and the corresponding position. The greatest combined value is compared with a threshold value, and if the greatest combined value is greater than this threshold value, then the detection of the signal is declared.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Signal processing utilizing a tree-structured array]]></title>
<link>http://www.freepatentsonline.com/RE40281.html</link>
<description><![CDATA[A communication system for sending a sequence of symbols on a communication link. The system includes a transmitter for placing information indicative of the sequence of symbols on the communication link and a receiver for receiving the information placed on the communication link by the transmitter. The transmitter includes a clock for defining successive frames, each of the frames including M time intervals, where M is an integer greater than 1. A modulator modulates each of M carrier signals with a signal related to the value of one of the symbols thereby generating a modulated carrier signal corresponding to each of the carrier signals. The modulated carriers are combined into a sum signal which is transmitted on the communication link. The carrier signals include first and second carriers, the first carrier having a different bandwidth than the second carrier. In one embodiment, the modulator includes a tree-structured array of filter banks having M leaf nodes, each of the values related to the symbols forming an input to a corresponding one of the leaf nodes. Each of the nodes includes one of the filter banks. Similarly, the receiver can be constructed of a tree-structured array of sub-band filter banks for converting M time-domain samples received on the communication link to M symbol values.    Signal processing is performed by splitting a signal into subbands using a plurality of filter banks connected to form a tree-structured array. The filter banks are connected so that the signal is split into subbands of different size. The subbands can be designed to approximate the bands of the human auditory system for audio signal processing applications. Reconstruction of signals using a plurality of synthesis filter banks connected to form a tree-structured array is also performed.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[PLL/DLL dual loop data synchronization utilizing a granular FIFO fill level indicator]]></title>
<link>http://www.freepatentsonline.com/7366270.html</link>
<description><![CDATA[A dual loop (PLL/DLL) data synchronization system and method for plesiochronous systems is provided. In particular, a system and method for dual loop data synchronization using a granular FIFO fill level indicator is provided. A dual loop data serializer includes a phase lock loop (PLL) and a delayed lock loop (DLL) configured with a phase shifter in the feedback path of the PLL. The dual loop serializer locks to the input of the DLL, which represents a fill level of a FIFO. A granular FIFO fill level indicator of the DLL provides input to the phase shifter to adjust the frequency of the PLL accordingly. Thus, the frequency of the data input rate can be controlled and a constant fill level of the FIFO can be maintained. A dual loop retimer includes a dual loop serializer (PLL/DLL) and a clock recovery DLL. The retimer resets the jitter budget to meet transmission requirements for an infinite number of repeater stages.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and orthogonal frequency division multiplexing (OFDM) receiver for reducing the influence of harmonic interference on OFDM transmission systems]]></title>
<link>http://www.freepatentsonline.com/7366088.html</link>
<description><![CDATA[A method and OFDM receiver are provided for reducing the influence of harmonic interference on OFDM transmission systems, wherein high interference unity is achieved by the simultaneous use of a window function and a determined item of reliability information, the window function being a Nyquist-shaped window function which generates low side lobes in the subcarrier and interference spectra while simultaneously leaving the orthogonality of the subcarriers unchanged, the determined item of reliability information being derived from a measurement when transmitting a so-called zero symbol, in order to detect the instantaneously active interference signals, with the high interference immunity being achieved when the subcarrier-specific information is taken into account in a so-called Viterbi decoder.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Apparatus and method for generating a preamble sequence in an OFDM communication system]]></title>
<link>http://www.freepatentsonline.com/7366090.html</link>
<description><![CDATA[A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length-2×M×N preamble sequence, where 2×M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to 2×M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the 2×M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Data reproduction apparatus and data reproduction method]]></title>
<link>http://www.freepatentsonline.com/7366241.html</link>
<description><![CDATA[In a data transmission system, a server is provided with a data storage unit which holds plural video streams having different I-frame intervals, as coded data corresponding to the same video sequence, and a data transmission unit for transmitting a predetermined video stream among the plural video streams, according to a command signal Sc from a receiving terminal. The receiving terminal transmits a data designation signal (command signal) Sc which designates one of the plural video streams stored at the server end, to the server, on the basis of the contents of user setting. Therefore, at the receiving terminal, a video stream to be supplied from the transmitting end (server) can be selected between one having a high resistance to transmission error and one having a high video quality, according to the user's preference.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Median filter combinations for video noise reduction]]></title>
<link>http://www.freepatentsonline.com/7366242.html</link>
<description><![CDATA[A technique for improving image compression by pre-processing the image frames. In particular, methods for de-interlacing and noise reduction using combinations of median filters, applied both spatially and temporally, with and without motion analysis, are described.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method to maximize receiver performance in a multi-stream system]]></title>
<link>http://www.freepatentsonline.com/7366246.html</link>
<description><![CDATA[A receiver includes a channel decoder select circuit, a plurality of communication channels, at least one maximum ratio combiner circuit, and a forward error correction circuit. The plurality of communication channels receive wireless information from channel demodulators and are in communication with respective channel decoder circuits, which are in communication with the channel decoder select circuit. The at least one maximum ratio combiner circuit receives the wireless information from the plurality of communication channels. The output of the maximum ratio combiner is communicated to the forward error correction circuit, the output of which is communicated to the channel decoder select circuit. A pseudo bit error measurement feedback signal communicated to the maximum ratio combiner from one of the plurality of channel decoder circuits. A method for finding wireless satellite signals that minimizes errors in a receiver system is also disclosed.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Radio communication terminal and radio signal receiving method]]></title>
<link>http://www.freepatentsonline.com/7366263.html</link>
<description><![CDATA[When a radio communication terminal including an AGC receiver starts, a set gain of the AGC receiver is switched in a short updating period. At this time, the terminal switches among antennas, and calculates and stores a received power of a received radio signal through each antennal. This calculation is performed a predetermined number of times for each antenna. After that, the terminal compares the calculated received powers of the radio signal through each antenna, and fixedly uses, as a receiving antenna, one of the antennas which receives a signal with the largest power.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Inter-modulation distortion compensation]]></title>
<link>http://www.freepatentsonline.com/7366470.html</link>
<description><![CDATA[An Inter-modulation distortion measurement and correction method which could be applied over a communication channel that is a combination of either or both analog and digital channels. This method is applicable for a communication system between a modem pair.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Noise filter for video processing]]></title>
<link>http://www.freepatentsonline.com/7366238.html</link>
<description><![CDATA[A noise filter for a video processing system includes a block selector, a cost calculator, a cost table, a cost comparator, and a coefficient filter. The block selector is coupled to receive data from the quantization unit and selects blocks for additional filtering. The selected blocks are provided to the cost calculator determines a cost for each of the coefficients in the block using the cost table and the costs are summed. The cost comparator compares the total to a threshold, and filters the coefficients using the coefficient filter if the total is greater a preset threshold. The noise filter to the VLC unit then outputs the filter data.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Method and apparatus for storing MPEG-2 transport streams using a conventional digital video recorder]]></title>
<link>http://www.freepatentsonline.com/7366407.html</link>
<description><![CDATA[An apparatus for storing an MPEG-2 transport data stream with a conventional digital video (DV) recorder. The MPEG-2 transport stream data is inserted into a data block of a digital video (DV) frame. The DV frame is stored on the storage medium of the DV recorder. For playback, the stored DV frame can transferred to a receiver where the MPEG data is extracted, decoded and presented.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Apparatus and method for adaptively de-interlacing image frame]]></title>
<link>http://www.freepatentsonline.com/7365795.html</link>
<description><![CDATA[An apparatus for adaptive de-interlace of a frame comprises a line-segment difference-value calculating module, a motion-vector calculating module, an intra-block calculating module, a trigger-value producing module, and an image processing module. The line-segment difference-value calculating module computes a difference value of a line segment within the frame. The motion-vector calculating module computes a motion vector of a macro block that is located in the frame and comprises the line segment. The intra-block calculating module computes the amount of intra blocks in the frame. The trigger-value producing module determines whether the amount of the intra blocks is larger than a first threshold or not, so as to select an algorithm for generating a trigger value. The image processing module determines whether the trigger value is larger than a second threshold or not and then selects a de-interlace algorithm for de-interlacing the line segment.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals]]></title>
<link>http://www.freepatentsonline.com/7366089.html</link>
<description><![CDATA[The present invention provides an apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals, where the apparatus includes M receive antennas, receiving M high data rate wideband packetized wireless communication signals, where each of the signals includes N frequency bins. The apparatus, in an exemplary embodiment, includes (1) a joint timing recovery units that perform joint coarse signal timing estimation, joint frequency offset estimation, and joint fine timing estimation on each of the signals, (2) M Fast Fourier Transform units (FFTs) that each convert the digital data for each of the M signals into frequency domain information for each of the N received frequencies and that output Q pilots for each of the signals, where Q is a positive integer, and (3) a combiner that weights and combines the outputs of the M FFTs for each of the N received frequencies.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Transmission device, transmission output control method, and radio communications device]]></title>
<link>http://www.freepatentsonline.com/7366482.html</link>
<description><![CDATA[Either linear operating mode or saturation operating mode is set as the operating mode of a high-frequency power amplifier on the basis of an operating mode set signal. The gain of a variable gain amplifier provided in front of the high-frequency power amplifier and values of output voltage and bias current supplied from a supply voltage/bias current control circuit to the high-frequency power amplifier are switched. The gain of the variable gain amplifier in the saturation operating mode is formed so as to be higher by a predetermined value than that in the linear operating mode. Accordingly, the high-frequency power amplifier operates in the designated operating mode, so that the output transmission power range can be widened.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Dynamic wavelet feature-based watermark]]></title>
<link>http://www.freepatentsonline.com/7366909.html</link>
<description><![CDATA[A dynamic wavelet feature-based watermark for use with digital video. Scene change detection separates digital data into one or more scenes, wherein each of the scenes is comprised of one or more frames. A temporal wavelet transformation decomposes the frames of each scene into dynamic frames and static frames. The static frames of each scene are subjected to a spatial wavelet transformation, so that the watermark can be cast into middle frequency sub-bands resulting therefrom. Polyphase-based feature selection or local block-based feature selection is used to select one or more features. The watermark is cast into the selected features by means of either (1) a comparison of energy in polyphase transform components of the selected feature, or (2) a change in value of blocked wavelet coefficients of the selected feature.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Passive optical network and ultrawide band adapter]]></title>
<link>http://www.freepatentsonline.com/7366203.html</link>
<description><![CDATA[The disclosure relates generally to a system including a passive optical network element and a first ultra wideband adapter coupled to the passive optical network element. The first ultra wideband adapter is coupled via a data communication line to a second ultra wideband adapter. The second ultra wideband adapter has a connection to an end user computing device.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Delta-predicted frequency offset compensation apparatus and method thereof]]></title>
<link>http://www.freepatentsonline.com/7366087.html</link>
<description><![CDATA[Provided are delta-predicted frequency offset compensation apparatus and method that estimates an offset delta of forthcoming symbols by using a principle that the offset delta of a symbol in a previous section is almost the same as an offset delta of some forthcoming symbols. The offset compensation method of the present research includes the steps of: a) estimating a frequency offset of a communication system based on an estimation period and estimation algorithm; b) outputting a compensation value for offset compensation through a feedback loop by considering the frequency offset value estimated based on the estimation period and the frequency offset delta estimated based on the estimation period and delay interval; and c) shifting the phase of a signal by as much as the offset corresponding to an input signal of the communication system to compensate the symbol for the frequency offset. The apparatus and method of the present invention can be applied to a communication system using an orthogonal frequency division multiplexing.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Hybrid stochastic gradient based digitally controlled oscillator gain K<sub>DCO </sub>estimation]]></title>
<link>http://www.freepatentsonline.com/7365609.html</link>
<description><![CDATA[A novel hybrid stochastic gradient adaptation apparatus and method for calibrating the gain of an RF or non-RF digitally controlled oscillator (DCO). The adaptation algorithm determines a true stochastic gradient between a forcing function and its corresponding system measure to estimate the system parameters being adapted. A momentum term is generated and injected into the adaptation algorithm in order to stabilize the algorithm by adding inertia against any large transient variations in the input data. In the case of adaptation of DCO gain K DCO , the algorithm determines the stochastic gradient between time varying calibration or actual modulation data and the raw phase error accumulated in an all digital phase locked loop (ADPLL). Two filters preprocess the observable data to limit the bandwidth of the computed stochastic gradient providing a trade-off between sensitivity and settling time.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Apparatus and method for switching transmit diversity in a wireless network]]></title>
<link>http://www.freepatentsonline.com/7366140.html</link>
<description><![CDATA[A base station for communicating with mobile stations in a coverage area of a wireless network. The base station comprises a first transmit antenna, a second transmit antenna, and an RF transceiver for generating an outgoing RF signal to be transmitted via the first and second transmit antennas to the mobile stations. The base station also comprises a switch coupling the RF transceiver to the first and second transmit antennas. The switch alternately directs the outgoing RF signal to the first transmit antenna during a first portion of a forward channel data frame and directs the outgoing RF signal to the second transmit antenna during a remaining portion of the forward channel data frame.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Image compression apparatus and method, image regeneration apparatus, camera and camera system]]></title>
<link>http://www.freepatentsonline.com/7365775.html</link>
<description><![CDATA[A process and apparatus for displaying and recording image data can be smoothly performed in characteristic methods by computing a quantization parameter for use in compression of image data, obtaining a difference in the amount of processes between the display of image data and the recording of image data, and managing memory of temporarily stored image data for regeneration of recorded image data.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Automatic gain control with gain stepping and regulation]]></title>
<link>http://www.freepatentsonline.com/7366490.html</link>
<description><![CDATA[An automatic gain control device and a related method for its operation, using a first-order control loop for adjusting a received communication signal to compensate for variations in received signal power. The device bases its adjustments on a measure of the average received root-mean-square (rms) signal power and, in its preferred form, adjusts a loop gain adaptively to react rapidly to large input signal variations. The loop gain is adjusted based on measurement of the average power of an error signal and on the sign of the error signal power. Optional features include an automatically adjustable power set point.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Signal strength measurements in cellular telecommunication systems]]></title>
<link>http://www.freepatentsonline.com/7366475.html</link>
<description><![CDATA[A mobile station (MS) and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures the received signal strength of the radio signal over a plurality of frames, and calculates an average received signal strength. During an idle frame, the MS receives a synchronization channel (SCH) signal, and determines a channel estimate for the SCH using a known extended training sequence. The extended training sequence is then modified with the channel estimate, and the modified extended training sequence is subtracted from the received SCH signal to obtain a residual signal. The MS calculates a residual energy of the residual signal, and subtracts the residual energy from the average received signal strength of the radio signal to obtain an estimated received signal strength of the radio signal from the neighboring cell.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Reset in a system-on-chip circuit]]></title>
<link>http://www.freepatentsonline.com/7366938.html</link>
<description><![CDATA[An electronic device having first circuitry operating in a first clock environment and second circuitry operating in a second clock environment, the first circuitry being arranged to generate a soft reset signal for resetting the second circuitry, the integrated circuit further including: a soft reset hold circuit clocked in the first clock environment connected to receive the soft reset signal and to generate an output reset signal in an asserted state; and a synchronizer clocked in the second clock environment connected to receive the output reset signal and to generate a retimed reset signal in an asserted state after a predetermined period, wherein the retimed reset signal is fed back to the soft reset hold circuit to cause the output reset signal to adopt a deasserted state at the end of said predetermined period.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

<item>
<title><![CDATA[Redundancy version implementation for an uplink enhanced dedicated channel]]></title>
<link>http://www.freepatentsonline.com/7366477.html</link>
<description><![CDATA[This invention describes a method for a redundancy version implementation of an uplink (UL) enhanced dedicated channel (E-DCH) in mobile communication systems by calculating a redundancy version number (RVN) as a function of a connection frame number (CFN), a maximum number of processed HARQs (hybrid automatic repeat requests) N ARQ , and a number of redundancy versions N RV . Instead of signaling a RV parameter outband in UL, the RVN is determined by the network element using simple rules which ensures that the same RVN is never used successively for the same HARQ process, and that all possible RV numbers are used for one HARQ process.]]></description>
<pubDate>April 29, 2008</pubDate>
</item>

</channel>
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