Patents
Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890)
09/2005
09/27/2005US6950481 Digital television receiver converting vestigial-sideband signals to double-sideband AM signals before
09/27/2005US6949959 Method for converting electric signals and a converter therefor
09/22/2005US20050207383 Method and system of reducing collisions in an asynchronous communication system
09/15/2005US20050201495 Reproducing apparatus and method for controlling the same
09/15/2005US20050201494 Apparatus and method for digital down-conversion in a multi-mode wireless terminal
09/14/2005CN1669214A Start signal output circuit
09/14/2005CN1667738A Reproducing apparatus and method for controlling the same
09/13/2005US6944241 Apparatus and method of eliminating vestigial sideband pilot tone in vestigial sideband/quadrature amplitude modulation system
09/08/2005US20050195894 Method and circuit for adaptive equalization of multiple signals in response to a control signal generated from one of the equalized signals
09/08/2005US20050195023 Method and circuit arrangement for demodulating a digital amplitude-modulated radio signal
09/06/2005US6940926 Digital phase/frequency detector
09/06/2005US6940316 Comparator circuit
09/01/2005WO2005081259A1 Current/voltage conversion circuit and its controlling method
09/01/2005US20050189981 Current detection circuit of bidirectional switch
08/2005
08/31/2005EP1569329A1 Activation signal output circuit and determining circuit
08/31/2005CN1663114A Demodulator using digital circuitry
08/30/2005US6937665 Method and apparatus for multi-user transmission
08/30/2005US6937070 Amplitude-detecting method and circuit
08/25/2005US20050184767 Current-voltage converter circuit and its control method
08/23/2005US6934346 Apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal
08/23/2005US6933777 AM detecting apparatus with overmodulation detecting function
08/18/2005US20050180522 Method and system for high bandwidth-efficiency communications using signals having positive entropy
08/11/2005US20050175125 Ultra-wideband correlating receiver
08/11/2005US20050175123 Method and apparatus for improved burst acquisition in a digital receiver
08/09/2005US6927889 Process and device for detecting and processing signal waves
08/09/2005US6927623 Amplitude-modulated signal receiving circuit
08/04/2005US20050171962 Data compression system based on tree models
08/04/2005US20050168240 FSM closure of generalized tree models
08/03/2005EP1509999A4 Demodulator using digital circuitry
07/2005
07/28/2005US20050163260 Decoder and receiver
07/26/2005US6922555 Phase interpolation receiver for angle modulated RF signals
07/21/2005US20050157823 Technique for improving viterbi decoder performance
07/21/2005US20050156634 Phase continuous synthesizer with phase coasting and associated methods
07/20/2005EP1554798A1 Co-channel interference receiver
07/13/2005EP1553695A1 Start signal output circuit
07/05/2005US6915141 Secondary automatic gain control loops for direct conversion CDMA receivers
06/2005
06/30/2005US20050141657 Adaptive channel equalizer for wireless system
06/30/2005US20050141651 Method and system for modifying branch metric of Viterbi decoder for uncorrelated signals
06/30/2005US20050141645 VSB receiver and carrier recovery apparatus thereof
06/29/2005EP1547334A1 Method and circuit arrangement for demodulating a digital amplitude-modulated radio signal
06/23/2005WO2005057778A1 Low power amplitude modulation detector
06/23/2005WO2005034367A3 Ultra-wideband correlating receiver
06/23/2005WO2005020482A3 Thermal-mechanical signal processing
06/23/2005US20050134329 Transconductor circuit for compensating the distortion of output current
06/23/2005US20050134324 Variable threshold comparator interface circuit
06/23/2005US20050134321 Interface for serial data communication
06/23/2005CA2547714A1 Low power amplitude modulation detector
06/22/2005CN1630978A Digital phase locked loop
06/21/2005US6909742 Method and apparatus for reducing interference in a data stream using autocorrelation derived equalization
06/21/2005CA2113353C Synchronous tracking am receiver
06/16/2005WO2005055414A1 Multiplier device
06/16/2005US20050129145 E8-VSB reception system
06/15/2005CN1628410A Quadratic nyquist slope filter
06/14/2005CA2370100C Method for down-converting an electromagnetic signal
06/09/2005WO2005053259A1 Ultra-wideband correlating receiver
06/09/2005US20050124312 Low power amplitude modulation detector
06/09/2005US20050123077 Digital broadcasting receiving system and equalizing method thereof
06/09/2005US20050123076 Method to maximize receiver performance in a multi-stream system
06/09/2005DE10349566A1 Verfahren und Vorrichtung zur Schätzung von Kanaleigenschaften eines Übertragungskanals Method and apparatus for estimating channel characteristics of a transmission channel
06/09/2005DE10251459B4 Verfahren zum Regeln des Eingangssignals eines Kontaktlos-Transponders A method of controlling the input signal of a contactless transponder
06/08/2005EP1538741A1 Multiplier device
06/08/2005EP1538496A2 AM-Receiver
06/07/2005US6904076 Interference canceller device and radio communication device
06/02/2005US20050119032 Optical messaging
06/02/2005US20050117675 Method and apparatus for providing random access detection in a communication system
06/02/2005US20050117673 Survivor memory management in a viterbi decoder
06/02/2005US20050117672 Method and system for providing low power WLAN receiver
06/01/2005CN1622606A Digital E8-VSB reception system and E8-VSB data demultiplexing method
05/2005
05/31/2005US6901121 Compensation of DC offset impairment in a communications receiver
05/31/2005US6901116 Method and system for reducing false detections of access signals
05/26/2005US20050111601 Apparatus and method for synchronizing a circuit during reception of a modulated signal
05/26/2005US20050111591 Method and device for estimating channel properties of a transmission channel
05/26/2005US20050111586 Digital E8-VSB reception system and E8-VSB data demultiplexing method
05/25/2005DE102004041558A1 Synchronerfassungsverfahren und -Vorrichtung Synchronous detection method and apparatus
05/24/2005US6897719 Demodulation circuit and demodulation method
05/24/2005CA2259608C Method and apparatus for compensating for a varying d.c. offset in a sampled signal
05/19/2005US20050104628 Signal level detector and amplification factor control system using signal level detector
05/19/2005US20050104626 Comparator circuit
05/19/2005DE10347941A1 Amplitude modulation receiver for amplitude-modulated radio broadcast signals has an antenna signal primary stage, a mixer and a tuning/adapting circuit
05/18/2005EP1530778A1 Method for regulating the input signal of a non-contact transponder
05/17/2005US6894542 Comparator with hysteresis
05/12/2005WO2005004338A3 Reduced complexity sliding window based equalizer
05/12/2005US20050102598 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
05/12/2005US20050099825 Method for converting electric signals and a converter therefor
05/11/2005CN1201479C Method and apparatus for detecting data in magnetic recording using decision feedback
05/10/2005US6892062 Current-reuse bleeding mixer
05/06/2005WO2005040951A1 Voltage trimming circuit
05/06/2005WO2005020434A3 Shell type actuator
05/05/2005US20050093682 Digital demodulator with a low sampling frequency
05/04/2005EP1528739A1 Digital demodulator with low sampling frequency
05/04/2005CN1613177A Multiple analog and digital downconversion
05/03/2005US6889356 Cyclic trellis coded modulation
04/2005
04/28/2005WO2004100369A3 Temperature compensated, high efficiency diode detector
04/28/2005US20050089122 Correlator and receiver including the same
04/28/2005US20050088203 Tail current generator circuit for bipolar/MOS differential pair to set precise transconductance
04/27/2005CN1610341A Method and apparatus for estimating character of transmitting channel
04/27/2005CN1199414C Multiple frequency band data communication equipment and communication method
04/21/2005WO2005036762A1 Method and apparatus for accurately detecting validity of a received signal
04/21/2005WO2005036753A2 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
04/21/2005WO2005035436A2 Mems device annealing by laser
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