Matches 51 - 100 out of 286 < 1 2 3 4 5 6 >
Match Document Document Title
7480349 Low IF receiver systems and methods  
Embodiments of a low intermediate frequency system and method are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio...
7480516 Method and apparatus of forward link and reverse link power control in a cellular wireless communication system  
A cellular wireless communication system includes base transceiver stations and mobile stations that operate with a closed loop power control. The mobile tracking is performed based on the lock in...
7474688 System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher  
System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher. A preferred embodiment comprises the specification of a hypothesis for a particular...
7474690 Systems and methods for parallel signal cancellation  
The present invention provides systems and methods for parallel interference suppression. A processing engine is used to substantially cancel a plurality of signal paths and selected channel(s) of...
7471940 Ratiometric clock systems for integrated receivers and associated methods  
A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same...
7471754 Method and device for fine synchronization of a digital telecommunication receiver  
A method for the synchronization of a digital telecommunication receiver comprises the steps of:—storing a plurality of consecutive samples E−1, E, M, L, L+1 of an incoming spread spectrum...
7469003 Method and apparatus for adaptive channel equalization using decision feedback  
The equalizer circuit ( 200 ) equalizes the channel prior to despreading thereby restoring the orthogonality of signals that typically exists in the forward link of CDMA systems and thus...
7466744 Method of receiving spread spectrum signal, and receiver  
A receiver for receiving a spread spectrum signal, including mechanisms for receiving a combination signal including a user signal spread with the user's spreading code, mechanisms for correlating...
7457349 Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system  
Unassigned finger processors are used to process and measure the arrival times of transmissions from base stations not in the active set. A first set of one or more base stations in active...
7457346 Spread-spectrum signal generator  
A spread-spectrum signal generator includes four differential input signal terminals, a differential output signal terminal, four interconnected mixer control subcircuits, a 4-input differential...
7457347 Method and apparatus for estimating and correcting baseband frequency error in a receiver  
A method and apparatus for estimating and correcting baseband frequency error in a receiver. In one embodiment, an equalizer performs equalization on a sample data stream and generates filter tap...
7450669 Demodulation apparatus and method, and integrated circuit of demodulation apparatus  
An OFDM modulation apparatus receives a signal composed of OFDM symbols each of which is composed of an effective symbol and a guard interval, generates K delayed signals by delaying the received...
7443827 Mobile communication system, multicarrier CDMA transmitter, and multicarrier CDMA receiver  
A transmitting apparatus adds a common pilot symbol and known series for each data slot of a subcarrier group. A receiving apparatus combines SIR calculation values obtained for each subcarrier...
7443917 Method and system for transmission of information data over a communication line  
A transceiver system and method comprises a transmitter and a receiver. The transmitter includes a synthesis filter bank and an overlapping unit. The synthesis filter bank generates and modulates a...
7439813 Method and system for generating carrier frequencies for UWB application  
Apparatus and method for generating first, second and third carrier frequencies of 3432 MHz, 3960 MHz and 4488 MHz respectively, for use in a wireless transmission system deploy only first and...
7430232 Method and system for broadcasting a programme  
Method and apparatuses for broadcasting and receiving a programme are presented. A programme is broadcast from a broadcasting system. Broadcast programme-associated data is transferred from a...
7424047 Receiver based method for de-spreading of spread spectrum signal  
A spread spectrum receiver whose de-spreading process based on transformed spreading codes is provided. Instead of de-spreading with original spreading codes, this approach de-spreads received...
7418026 Receiver for a multi-carrier modulated symbol  
A receiver for receiving a multi-carrier modulated symbol is arranged to suppress a burst noise signal which may have been induced in the symbol. The symbol includes a plurality of pilot carriers...
7411997 Apparatus and method for filtering a spectrum spread communication  
A filter ( 201 ) accepts spreading code sequences or the like as input sequences of a chip rate 1/D, the accepted spreading code sequences are sequentially delayed and distributed by delay circuits...
7411994 Methods and apparatus for adapting a hop sequence when establishing a communication connection  
Methods and apparatus are provided for establishing a connection between a scanner device and a pager device over a sequence of hop channels. The scanner device is repetitively activated and a hop...
7405696 Method for calibrating and AOA location system for frequency hopping air interfaces  
A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in...
7403583 System and method for predictive synchronization for locating interleaving frames and demodulation training sequences  
A system and method for using Psuedo-Noise (PN) phase to determine frame start of a data frame is provided. The system and method includes at least two PN component codes, wherein the at least two...
7403556 Radio receiver supporting multiple modulation formats with a single pair of ADCs  
A radio receiver has an ADC connected to an RF module. Baseband processing modules are connected to the ADC, and a power control module is connected to each of the baseband processing modules. Each...
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...
7397844 Method and apparatus for processing a modulated signal using an equalizer and a rake receiver  
In a method for achieving higher S/N, one or more signals are received and processed to provide one or more streams of samples. In a first processing scheme, the sample stream(s) are equalized...
7388900 Estimation method for space correlation characteristics of noise in a time slotted CDMA system  
The invention discloses a method for estimating the space correlation characteristics of noise in a time slotted CDMA system. The method comprises the steps of: making channel estimation for the...
7388902 Method for receiving spectrum spreading signals with frequency shift correction  
A method for receiving spectrum spreading signals using a Doppler-effect frequency-shift correction generates a corrective signal based on an estimation of a modulation period related to the...
7388899 Spreading code structure for ultra wide band communications  
The ultra wide band communication system of the present invention includes a transmitter (station) and a receiver (station). The transmitter and the receiver employ spreading code comprised of code...
7386032 Receiver processing systems  
Spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications...
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...
7386035 Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same  
Provided is a method of compensating for energy loss and eliminating inter-symbol interference (ISI) and inter-chip interference (ISI) in wireless signals, and a rake receiver for wireless LANs...
7376171 Multiuser detection aided multiple access differential M-ary coding applications  
Techniques for multiple access differential M-ary coding applications that can be optionally aided by multiuser detection (MUD) are disclosed. An initial hopped feature decoding is performed to...
7376172 Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems  
Base station identification and downlink synchronization are realized by employing pilots including known symbols transmitted at prescribed frequency tones in individual ones of prescribed time...
7369620 Channel noise estimating method and apparatus applied to a multi-carrier system  
A channel noise estimating method and apparatus applied to a multi-carrier system are disclosed, where data symbols received by a receiving unit are applied to reconstruct the original transmitted...
7366227 Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals  
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...
7366225 Apparatus and method for receiving data in a mobile communication system using an adaptive antenna array technique  
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...
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...
7362829 Multi-band single-carrier modulation  
Multi-band single-carrier modulation. A novel approach is presented by which interference compensation may be performed for signals received by a piconet operable device. The piconet operable...
7362793 Base station having a set of phased array antennas  
A spread spectrum base station for receiving a plurality of spread spectrum signals and a plurality of phased spread spectrum signals includes an antenna and a plurality of delay devices connected...
7362790 Apparatus and method for generating pseudo-replica signals in a CDMA communication system  
A noise reduction circuit for improving a signal-to-noise ratio of an input signal corresponding to a predetermined sequence of chips, each of the chips having a value corresponding to Logic 0 or...
7359366 Uplink ranging system and method in OFDMA system  
Disclosed is a ranging system and method in an OFDMA system. The ranging system includes complex exponential twiddle storage units for respectively storing complex exponential twiddle factors...
7359456 Communication system and communication device  
A communication system for transmitting a transmission signal in digital form from a transmitter to a receiver is disclosed. The transmitter includes a modulation part modulating a carrier wave in...
7356100 Estimating channel impulse response and equalizer coefficients in UWB communication systems  
A method estimates a channel impulse response in an ultra wide bandwidth (UWB) system. Multiple training sequences modulated at a chip rate are received. Each training sequence is sampled by...
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...
7352828 Receiving apparatus and receiving method  
The present invention provides a receiving apparatus and method in which frequency of calculation such as weighting multiplication and memory capacity of a frame buffer can be reduced. To this end,...
7349458 Linear receivers for time-hopping impulse radio systems  
In a time-hopped impulse radio system, each symbol is transmitted over a channel having different multipath components as a set of N f frames. Each frame includes one pulse. All frames of a...
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...
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...
7346098 Communication receiver  
A timing and carrier error detector module ( 127 ) of a communication receiver ( 111 ). The timing and carrier error detector module uses phase information of a correlated signal (e.g. a Barker...
Matches 51 - 100 out of 286 < 1 2 3 4 5 6 >