Patents
Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890)
01/2007
01/25/2007US20070019762 Interference cancellation method and communication terminal for the same
01/23/2007US7167531 System and method for shared decoding using a data replay scheme
01/23/2007US7167505 Radio receiving apparatus and radio receiving method
01/18/2007WO2007008873A2 Polar loop radio frequency (rf) transmitter having increased dynamic range amplitude control
01/18/2007US20070014385 Evaluating device, reproducing device, and evaluating method
01/18/2007US20070014381 Polar loop radio frequency (RF) transmitter having increased dynamic range amplitude control
01/17/2007EP1743431A2 File download and streaming system
01/11/2007WO2007005109A2 Jitter compensation and generation in testing communication devices
01/11/2007WO2005029742A3 Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
01/11/2007US20070009068 Methods and apparatus for communicating using a DC tone
01/11/2007US20070009067 Methods and apparatus for radio frequency interference reduction
01/11/2007US20070009063 Method and device for mapping/demapping a tributary signal into/from a synchronous frame
01/11/2007US20070009057 Wireless communication system, receiving apparatus with a plurality of antennas, demodulating method for such wireless communication system, receiving apparatus, and program for such demodulating method
01/10/2007EP1155503B1 Radio receiver and method for preloading an average dc-offset into a channel filter
01/10/2007EP1118155B1 Method for separating a desired signal from an interfering signal
01/09/2007US7161980 Receiver for high rate digital communication system
01/04/2007WO2007002937A1 Apparatus, system, and method for multi-class wireless receiver
01/04/2007WO2006086261A3 Wireless communications device performing block equalization based upon prior, current and/or future autocorrelation matrix estimates and related methods
01/04/2007US20070002982 Receiver and method of processing received data
01/04/2007US20070002981 Apparatus and method for sampling frequency offset estimation and correction in a wireless communication system
01/04/2007US20070002980 Method for timing and sequence hypotheses selection
01/04/2007US20070002979 Iterative channel estimation using pilot signals
01/04/2007US20070002973 Systems and methods for high-efficiency transmission of information through narrowband channels
01/04/2007US20070002972 Cancellation of undesired portions of audio signals
01/04/2007US20070002969 Transmitting/receiving apparatus and method in a mobile communication system
01/04/2007US20070002964 Jitter compensation and generation in testing communication devices
01/03/2007EP1738476A2 System for synchronizing a portable transceiver to a network
01/03/2007CN1890616A Voltage trimming circuit
01/02/2007US7158585 OFDM channel estimation in the presence of interference
01/02/2007US7157946 Chopper comparator circuit
12/2006
12/28/2006US20060291598 Method and system for antenna interference cancellation
12/28/2006US20060291597 Digital-signal-processing apparatus and method
12/28/2006US20060291596 Method of estimating noise and interference covariance matrix, receiver and radio system
12/28/2006US20060291595 Communications channel symbol recovery by combining outputs at different decision delays
12/28/2006US20060291594 Phase tracking for received signals using adaptive interpolation
12/28/2006US20060291553 Equalizer mode selection based on distribution of symbol error
12/27/2006EP1116323B1 Lock-in aid frequency detector
12/27/2006CN1886889A 低功率幅度调制检测器 Low power amplitude modulation detector
12/27/2006CN1292538C Smoothing circuit
12/26/2006US7155176 System for synchronizing a portable transceiver to a network
12/26/2006US7154971 DTSE at less than two complex samples per symbol
12/26/2006US7154969 Method for shared estimation of parameters
12/26/2006US7154966 Method and system for M-QAM detection in communication systems
12/26/2006US7154965 Soft detection of data symbols in the presence of intersymbol interference and timing error
12/21/2006WO2006135449A2 Homodyne rfid receiver and method
12/21/2006WO2006004628A3 Reconfigureable arrays of wireless access points
12/21/2006US20060286954 Method and apparatus for matching receiver carrier frequency
12/21/2006US20060285607 High availability narrowband channel for bandwidth efficient modulation applications
12/21/2006US20060284652 Power detecting circuit and demodulator comprising it
12/20/2006EP1733474A2 Method and circuit for adaptive equalization of multiple signals in response to a control signal generated from one of the equilized signals
12/20/2006CN1883121A Method and apparatus for accurately detecting validity of a received signal
12/19/2006US7151809 Channel estimation and spatial processing for TDD MIMO systems
12/14/2006US20060280240 Information read device and read signal processing circuit
12/13/2006CN1290254C Process and device for detecting and processing signal waves
12/12/2006US7149262 Method and apparatus for enhancing data resolution
12/12/2006US7149260 Carrier recovery apparatus of VSB receiver and a method of recovering carrier using the same
12/12/2006US7149259 Center of gravity control for hierarchical QAM transmission systems
12/07/2006WO2005101655A8 Advanced digital receiver
12/07/2006WO2005036753A3 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
12/07/2006US20060274862 Quaternary precoded continuous phase modulation soft bit metric demodulator
12/07/2006US20060274861 Channel esitmation and sequence for the reception of optical signal
12/06/2006EP1728318A1 Method and system of reducing collisions in an asynchronous communication system
11/2006
11/30/2006WO2006128188A2 Adaptive interpolator for channel estimation
11/30/2006US20060269021 Method and system for FM interference detection and mitigation
11/30/2006US20060269016 Adaptive interpolator for channel estimation
11/30/2006US20060269015 Receivers for DPSK signals
11/23/2006WO2006124427A2 Rate selection with margin sharing
11/23/2006WO2006123349A1 Method and apparatus for sensing the envelope of high level multi frequency band rf signals
11/23/2006US20060262885 Apparatus and method for decode arbitration in a multi-stream multimedia system
11/23/2006US20060262841 Signal-to-interference power ratio estimator
11/23/2006US20060261859 Semiconductor integrated circuit device
11/21/2006US7139960 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
11/21/2006US7139337 Efficient partial response equalization
11/21/2006US7139335 Optimal decision metric approximation in bit-soft decisions
11/21/2006US7139325 System and method for five-level non-causal channel equalization
11/21/2006US7139323 Multi-frequency data transmission channel power allocation
11/16/2006WO2006068862A8 Method and apparatus for performing channel assessment in a wireless communication system
11/16/2006WO2006001003A3 Interference canceller with fast phase adaptation
11/16/2006WO2005104388B1 System for synchronizing a portable transceiver to a network
11/16/2006US20060256898 Ingress noise reduction in a digital receiver
11/16/2006US20060256897 Viterbi Pretraceback for Partial Cascade Processing
11/16/2006US20060256896 Robust maximum-likelihood based timing recovery
11/16/2006US20060256894 Frequency offset compensation in radio receiver
11/16/2006US20060256849 Adaptive blind start-up receiver architecture with fractional baud rate sampling for full-duplex multi-level PAM systems
11/16/2006US20060256848 Rate selection wtih margin sharing
11/15/2006EP1425846B1 Transmitter arrangement especially for mobile radio
11/14/2006US7136442 Receiving circuit receiving message signals
11/14/2006US7136436 Boundary detection using multiple correlations
11/14/2006US7136435 Modified branch metrics for processing soft decisions to account for phase noise impact on cluster variance
11/14/2006US7136434 Apparatus and method for detecting energy of tone signal
11/14/2006US7136433 Frequency offset cancellation circuit for data determination in FM wireless communications
11/09/2006WO2006117834A1 Semiconductor device and ic card
11/09/2006US20060251191 System and method for transmission format detection
11/08/2006CN1860753A 正交频分多路复用接收器 Orthogonal frequency division multiplexing receiver
11/08/2006CN1860677A Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm
11/07/2006US7133527 Stereodecoder
11/07/2006US7133476 Apparatus and methods for suppression of interference among disparately-modulated signals
11/02/2006WO2006116334A2 Dc offset detection and cancellation in a receiver
11/02/2006WO2006019611A3 A transmit system employing an antenna and balanced amplifier architecture which provides power amplifier load balancing independent of single or dual signal operation of the transmitter
11/02/2006US20060245526 Apparatus and method for Viterbi decoding
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