Patents
Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890)
08/2006
08/31/2006US20060193374 System, apparatus, and method for adaptive weighted interference cancellation using parallel residue compensation
08/29/2006US7099642 Method and apparatus for matching receiver carrier frequency
08/29/2006US7099412 Sequential decoding with backtracking and adaptive equalization to combat narrowband interference
08/29/2006US7099411 Soft-output decoding method and apparatus for controlled intersymbol interference channels
08/29/2006US7099409 Channel estimation and/or equalization using repeated adaptation
08/29/2006US7099386 Channel tracking using channel covariance estimation
08/24/2006WO2006088926A1 Iterative diversity reception
08/24/2006US20060188043 High-speed signaling systems with adaptable pre-emphasis and equalization
08/24/2006US20060188006 Method and apparatus for estimating gain offsets for amplitude-modulated communication signals
08/22/2006US7095812 Reduced complexity receiver for space-time- bit-interleaved coded modulation
08/22/2006US7095811 Apparatus and method for secondary synchronization channel detection in a 3GPP WCDMA receiver
08/22/2006US7095810 Practical M-ary demodulator and method of operation for use in a CDMA wireless network base station
08/22/2006US7095809 Practical M-ary demodulator using hard decision circuit and method of operation for use in a CDMA wireless network base station
08/22/2006US7095256 Low-power wide dynamic range envelope detector system and method
08/17/2006WO2006086214A2 System and method for removing interfering narrowband signals from wide bandwidth receive signal
08/17/2006WO2005101778B1 Apparatus for and method of controlling a sampling frequency of a sampling device
08/17/2006WO2005048468A3 Wireless communication method and apparatus for performing post-detection constellation correction
08/17/2006WO2005018100A3 Pilot signal enhancements for a wireless communication system
08/17/2006US20060182206 Communications system, method and device
08/17/2006US20060182205 Method for equalizing a digital signal through removal of data dependent jitter
08/17/2006US20060182193 Technique for adaptive equalization in band-limited high data rate communication over fading dispersive channels
08/17/2006CA2596183A1 Wireless communications device performing block equalization based upon prior, current and/or future autocorrelation matrix estimates and related methods
08/17/2006CA2596180A1 Wireless communications device providing enhanced block equalization and related methods
08/16/2006EP1690338A2 Wireless communication method and apparatus for performing post-detection constellation correction
08/16/2006EP1690334A1 Multiplier device
08/16/2006EP1690333A1 Low power amplitude modulation detector
08/15/2006US7092463 Method and apparatus for interference rejection
08/15/2006US7092462 Asynchronous servo RRO detection employing interpolation
08/15/2006US7092457 Adaptive iterative detection
08/15/2006US7092452 Co-channel interference receiver
08/10/2006WO2006050181A3 Spectrally shaped generalized multitone direct sequence spread spectrum modulation
08/10/2006WO2005027067A3 Method and system for providing an activation signal based on a received rf signal
08/10/2006US20060176987 Method and system for channel equalization
08/10/2006US20060176982 Apparatus, system, and method for asymmetric maximum likelihood detection
08/10/2006US20060176980 Symbol timing recovery apparatus usable with VSB receiver and method thereof
08/10/2006US20060176968 Adaptive viterbi decoder for a wireless data network receiver
08/10/2006US20060176967 Time correlation of signal power to distortion characteristics
08/10/2006US20060176965 System and method for removing interfering narrowband signals from wide bandwidth receive signal
08/10/2006US20060176947 Apparatus and method for setting tap coefficient of adaptive equalizer
08/10/2006US20060176945 Decoding device and decoding method
08/08/2006US7088793 Equalizer for complex modulations in very noisy environments
08/08/2006US7088792 Device and method for efficient decoding with time reversed data
08/03/2006WO2006079807A1 A demodulator
08/03/2006WO2005117252A3 Digital noise coupling reduction and variable intermediate frequency generation in mixed signal circuits
08/03/2006US20060171490 Viterbi decoder using circulation type decoding units connected in parallel
08/03/2006US20060171489 Soft bit Viterbi equalizer using partially collapsed metrics
08/03/2006US20060171449 Interference estimation in the presence of frequency errors
08/02/2006CN1812554A Circuit with suppression of unwanted signals,And method
08/01/2006US7085548 Harmonic mixer
08/01/2006US7085335 Method and apparatus for reducing DC offsets in a communication system
07/2006
07/27/2006US20060164554 Method and apparatus for detecting and rejecting ntsc interference in atsc system
07/26/2006EP1495536B1 Improved signal detection in a direct-sequence spread spectrum transmission system
07/25/2006US7082566 Signal quality evaluation method, information recording/reproducing system, and recording compensation method
07/20/2006WO2006055719A3 Precoding system and method for multi-user transmission in multiple antenna wireless systems
07/20/2006WO2006016980A3 Method and apparatus capable of interference cancellation
07/20/2006US20060158243 Amplitude demodulator for an electromagnetic transponder
07/20/2006DE112004001838T5 Spannungstrimmschaltung Voltage trimming circuit
07/18/2006US7079609 Method and apparatus for reducing interference within a communication system
07/18/2006US7079608 Method and device for channel estimation, in particular for a cellular mobile telephone
07/18/2006US7079607 Multi-user detection method
07/18/2006US7079603 Method for correlating chronologically discrete signal segments
07/18/2006US7079602 Receiving apparatus and method and provision medium
07/18/2006US7079601 Efficient channel estimation in a digital communications system
07/18/2006US7079596 Multiband data communication apparatus, communication method of multiband data communication apparatus, and storage medium
07/13/2006WO2005050827A3 Amplifier linearization using non-linear predistortion
07/13/2006US20060153318 Memoryless spectrum correction algorithm for non-ideal I/Q demodulators
07/13/2006US20060153313 Method and apparatus for minimizing co-channel interference
07/12/2006CN2796244Y Radio frequency detecting circuit
07/11/2006US7076006 Data reproducing method and device reproducing data according to a Viterbi decoding algorithm using an average value of a reproduction signal
07/11/2006US7076005 System and method for transmission format detection
07/11/2006US7076004 Apparatus and method for adaptively detecting received signals for power line communication
07/11/2006US7076000 Soft-decision metric generation for higher order modulation
07/06/2006US20060146965 Apparatus and method for detecting a signal in a multiple-input multiple-output mobile communication system
07/06/2006US20060145915 Interference management
07/05/2006CN1797937A Load circuit for eliminating DC bias voltage, and mixer of using the load circuit
07/04/2006US7071773 Digital phase locked loop
06/2006
06/29/2006WO2006068862A2 Method and apparatus for performing channel assessment in a wireless communication system
06/29/2006US20060140316 Method for suppressing narrowband noise in a wideband communication system
06/29/2006US20060140312 Blind SNR estimation
06/29/2006US20060140311 Composite data detector and a method for detecting data
06/29/2006US20060140295 Multi sub-carrier communication system and method providing improved frequency equalization performance
06/28/2006EP1673872A1 Method and apparatus for accurately detecting validity of a received signal
06/28/2006CN1794594A Front-ene circuit of two-step double-orthogonal zero medium frequency structure receiver of global digital broadcasting
06/27/2006US7068744 Synchronous detection method and device, and sensor signal detector
06/27/2006US7068741 Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm
06/22/2006US20060133549 Robust multiple chain receiver
06/22/2006US20060133548 Apparatus and method to calibrate amplitude and phase imbalance for communication receivers
06/22/2006US20060133547 Method and corresponding arrangement for dc offset compensation using channel estimation
06/22/2006US20060133543 Method and apparatus for performing channel assessment in a wireless communication system
06/22/2006US20060133527 Residual frequency, phase, timing offset and signal amplitude variation tracking apparatus and methods for OFDM systems
06/21/2006EP1671441A2 Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
06/21/2006EP1671430A1 System for decreasing processing time in an iterative multi-user detector system
06/21/2006CN1792071A Method and wireless device employing a preamble to initiate communications
06/20/2006US7065166 Wireless receiver and method for determining a representation of noise level of a signal
06/20/2006US7065162 Method and system for down-converting an electromagnetic signal, and transforms for same
06/20/2006US7065161 Partial response maximum likelihood (PRML) bit detection apparatus
06/20/2006US7065160 Method and apparatus for correcting the phase of a clock in a data receiver
06/20/2006US7065159 Compensation based bit-error-rate estimation for convolutionally encoded transmissions in wireless systems
06/15/2006US20060126764 Processing of an OFDM signal
06/15/2006US20060126760 Method and device for carrier-frequency synchronisation of a vestigial-sideband-modulated signal
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