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7606327 Method to receive local information with a national broadcast service  
A receiver is disclosed. The receiver includes a first antenna, a second antenna, a system controller, a national broadcast demodulator, a local broadcast demodulator, and an information output...
7602835 Multi-rate spread spectrum composite code  
A correlator despreads a P/N long code constructed from two or more constituent codes A, B, C having N, M and L elements respectively. In a third stage, L filter taps decorrelate elements of the...
7593543 Apparatus, system, and method for tracing distribution of video content with video watermarks  
Video watermarks are added to video content to trace distribution. The video watermarks are in the form of watermarking pixels. Watermarking modules in individual computers add additional sets of...
7577181 Frequency hopping spread spectrum system with high sensitivity tracking and synchronization for frequency unstable signals  
A wireless spread spectrum communication system for transmitting data includes a plurality of end point transmitters and at least one receiver. The end point transmitters transmit data via a...
7567815 Wireless communication apparatus for synchronizing a frame cycle's beginning position in relation to other devices  
A communication station needs to autonomously and synchronously operate by maintaining an equal frame interval. A clock error is measured from a received packet in a wireless communication system...
7567533 Packet detection system, packet detection device, and method for receiving packets  
A packet detector for a multi-band orthogonal frequency division multiplexing system includes a plurality of packet detection units each corresponding to a time frequency code for detecting packets...
7561613 Digital carrier multi-band user codes for ultra-wideband multiple access  
Techniques are described for generating digital carrier multi-band user codes for a baseband ultra-wideband (UWB) signal. The digital carrier multi-band user codes comprise spreading codes that...
7526010 Doped multi-rate spread spectrum composite code  
A composite code is made for example by exclusive-OR'ing each real element of a first constituent code A with each element of a second constituent code B to obtain a basic composite code. To...
7499509 Receiver for compensating nonlinearly distorted multicarrier signals  
An apparatus for compensating nonlinearly distorted multicarrier signals, a multicarrier signal receiver using the same, and a method therefor are provided, where the apparatus for compensating...
7492808 Decoding method using adaptive step-size algorithm for a space-time coded DS-CDMA system  
Disclosed is a method for decoding received signals on communication channels between at least one transmit antenna and plural receive antennas in a space-time coded direct sequence (DS)-CDMA...
7489755 Method and apparatus for transmission and reception of data  
Various embodiments are described to provide for the transmission and reception of data in an improved manner. Data transmission is improved by including in a transmitter a null generator ( 110 )...
7486745 Method for improving multipath mitigator low path separation error behavior  
A process is disclosed for discriminating between received ranging signals, such as GPS, GNSS, and radar signals, which arrive via a single path and those which arrive via multiple paths. The...
7483472 Apparatus and method for transmitting and receiving data in a code division multiplexing-frequency hopping-orthogonal frequency division multiple access communication system  
A system and method for transmitting data by a base station in a multiple access communication system including a plurality of sub-channels, each of which includes a predetermined number of...
7433678 Method and system for rapidly setting up a communication between a disk drive and a plurality of communicating objects  
The invention concerns a method and a system for rapidly establishing a communication, particularly a Bluetooth type communication, between at least one reader and a plurality of communicating...
7426175 Method and apparatus for pilot signal transmission  
Pilot sequences are constructed from distinct “classes” of chirp sequences that have an optimal cross correlation property. Utilization of chirp sequences for pilot sequences results in pilot...
7406114 Pseudo-noise correlator for GPS spread-spectrum receiver  
A terrestrial C/A code GPS receiver system digitally samples, filters and stores a segment of 11 half chips of the received composite as a binary number and multiplexes this number for parallel...
7400867 Radio broadcast receiver  
A radio broadcast receiver is provided which reduces the degradation in quality of diversity-received signals. When a difference in level between a reception signal of a main antenna and a...
7397842 Method and apparatus for combining weight computation in a DS-CDMA RAKE receiver  
A RAKE receiver circuit generates combining weights based on channel estimates and combining statistics that comprise channel coefficient statistics, noise statistics, and channel estimation error...
7386026 Method and system for synchronizing and selectively addressing multiple receivers in a wireless, spread spectrum communication system  
A system and method for synchronizing and selectively addressing multiple receivers in a wireless communication system includes a spread spectrum transmitter and one or more spread spectrum...
7379447 Slotted seeded channel hopping for capacity improvement in wireless networks  
A system and method that increases the capacity of a wireless network using frequency diversity. A user switches between channels of a network using a single network interface card in such a manner...
7373117 Power control in telecommunications networks  
A radio frequency transmitter is power controlled using a controlling system including an integrating controller, together with an inner and an outer control loop. A tracking signal supplied by the...
7366224 System and method for the detection of presence of a signal and its synchronization, for a frequency hopping system working in a disturbed environment  
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...
7356094 Digital broadcast receiving apparatus  
A digital broadcast receiving apparatus for receiving a broadcast signal generated by combining sub signals modulated using a random sequence generated based on an initial value set in accordance...
7349381 Synchronization technique for spread spectrum frequency hopped data links and radios using the same  
A method of obtaining coarse synchronization in a frequency hopped/direct sequence spread spectrum (FH/DSS) time division multiple access (TDMA) data link network includes tuning the receiver to a...
7346094 System and method for transmitting data and additional information simultaneously within a wire based communication system  
A system and method is provided for transmitting data signals and additional information signals having partially overlapping frequency bands simultaneously within a wire based communication system...
7346070 Shared wireline code division multiple access  
A first network component of an apparatus in one example is coupled with one or more additional network components. The first network component and the one or more additional network components...
7336696 Acquisition of a code modulated signal  
The invention relates to an apparatus supporting an acquisition of a received code modulated signal by determining the correlation between the received code modulated signal and an available...
7327717 Wireless LAN receiver synchronization  
A WLAN (Wireless Local Area Network) receiver is provided that provides at least two acquisition units and at least two tracking units. The acquisition units perform a synchronization acquisition...
7324578 Method and apparatus for transmitting and receiving information about spreading codes used for a packet data channel in a communication system  
A method and apparatus for efficiently transmitting and receiving information about spreading codes used for a packet data-transmitting channel in a spread spectrum communication system. A BS...
7321645 Method and arrangement for detecting a random access channel preamble using multiple antenna reception in a communication system  
In a method and arrangement for detecting a random access channel preamble in a received uplink signal, the uplink signal is received at one or more receive antennas and contains data related to a...
7313635 Method and apparatus for simulating a load on an application server in a network  
A method is disclosed for simulating a load on an application server in a network. The method intercepts data packets of a request from a sender to a receiver. The data packets to be intercepted...
7312746 Method and system for calibration of a radio direction finder  
A calibration method and a system for providing calibration data for use with a direction finder are provided. The method comprises providing a relative motion of a calibration receiver in a circle...
7298776 Acquisition of a gated pilot signal with coherent and noncoherent integration  
Systems and techniques are disclosed wherein a gated pilot signal can be acquired by producing a plurality of product values for each of a first and second signal and a generated signal, coherently...
7295817 Wireless data communication unit  
A wireless data communication unit ( 700 ) shares a data communication resource with a plurality of other data communication units. The wireless data communication unit ( 700 ) receives channel...
7295601 Method and apparatus for performing digital timing recovery on oversampled 802.11b baseband signals  
An apparatus and method for performing digital timing recovery includes a rotating demultiplexor receiving a four times oversampled baseband signal and providing four downsampled phases at...
7280624 Method and apparatus for noise threshold calculation in wireless communication  
Determination of the impulse position in a multipath channel in a noisy environment includes dynamically adjusting a threshold value when making comparisons against a signal property level.
7280522 Method for preparing a profile in W-CDMA communication  
The method of this invention for preparing a profile in W-CDMA which, using a timer value and norm value, helps a mobile unit to synchronize its signals with those of a base station, comprising...
7230972 Method and system for collecting and transmitting data in a meter reading system  
A method for improving gap coverage in data collection in an automatic meter reading system is disclosed that reduces overall system cost while improving data collection. A transceiver in the...
7187723 Local oscillation signal supply method and circuit therefor  
With the object of accurately reproducing, by means of a small-scale circuit, differences in propagation delay at antennas of received signals that are received as input by way of each of a...
7142582 Receiving and selectively transmitting frequency hopped data signals using a plurality of antennas  
A remote unit transmits data by Frequency hopping over a set of frequencies to a base station. A plurality of antennas at the base station receives the transmitted frequency hopped data. An optimal...
7130658 Shared circuitry for WLAN receiver functional units  
A WLAN (Wireless Local Area Network) receiver having a synchronization unit is provided. The synchronization unit comprises a first functional unit for performing a first signal processing...
7110431 Hardware and software for performing computations in a short-code spread-spectrum communications system  
The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One...
7103026 Use of chip repetition to produce a flexible bandwidth DS-CDMA system  
A method is disclosed for obtaining a spreading code set for a code division multiple access (CDMA) communications system. The method includes (a) generating a P′×P′ spreading code set where...
7079831 Method and apparatus for two-way communications amongst a plurality of communications devices  
In a security system, a method and apparatus for two-way frequency hopping communications between the control panel and each peripheral device which maintains channel synchronization through the...
7079812 Systems and methods for interference mitigation with respect to periodic interferers in short-range wireless applications  
Several techniques are provided for use by wireless devices to avoid interference with signals that are of a periodic or quasi-periodic nature that may operate in the same frequency band and...
7058729 Method and device for the synchronisation between two networks  
The present invention relates to a method of synchronisation between communication networks exchanging information by frame of informations, each communication network having clock and the number...
7054301 Coordinated hopping in wireless networks using adaptive antenna arrays  
The present invention allows many of the benefits of spatial diversity to be realized in a hopping radio communications system. One embodiment of the invention includes transmitting signals from a...
7039090 Method for controlling antennas of a receiving device in a radio system  
A method for controlling antennas of a receiving device in a radio system, especially in a mobile radio system, in which at least one change is made using a frequency hopping method between a...
7039003 Radio communication apparatus and radio communication method  
Symbol 102 that is spread with the only short spreading code and inserted in synchronism with a long spreading code is specified by detecting the correlation with only the short spreading code....
7023906 Receiver and receiving method in spread spectrum communication system  
An over-sampling circuit is provided at a front stage of a digital matched filter, and a received signal is over-sampled with it. Synchronous acquisition of the received spread spectrum signal is...
Matches 1 - 50 out of 155 1 2 3 4 >