Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 3 - Demodulation of angle-modulated oscillations
Patents for H03D 3 - Demodulation of angle-modulated oscillations (6,449)
09/2003
09/04/2003US20030164729 FM detector circuit
09/03/2003EP1340319A2 Receiver circuit
09/03/2003CN1440588A 无线电接收机 Radio receiver
09/02/2003US6615029 Electronic circuits
08/2003
08/28/2003WO2003071696A1 Method and apparatus for down conversion of radio frequency (rf) signals
08/28/2003US20030162521 System and method for on-chip filter tuning
08/28/2003CA2477307A1 Method and apparatus for down conversion of radio frequency (rf) signals
08/27/2003EP1339167A2 Apparatus for downconverting signals from intermediate frequency to baseband , and method
08/27/2003EP0772932B1 Method and device for phase-modulated signals
08/26/2003US6611571 Apparatus and method for demodulating an angle-modulated signal
08/26/2003US6611570 Programmable digital intermediate frequency transceiver
08/21/2003WO2003013191A3 Method and device for compensating a phase error in a receiver and/or transmitter system with an i/q-interface
08/21/2003WO2003005593A3 Receiver device comprising an alternating current coupling
08/21/2003US20030156674 Phase-locked loop (PLL) circuit for selectively correcting clock skew in different modes
08/20/2003EP1336246A2 Direct conversion receiver
08/20/2003CN1437317A FM detector circuit
08/19/2003US6609239 Efficient integrated circuit layout for improved matching between I and Q paths in radio receivers
08/19/2003US6608999 Communication signal receiver and an operating method therefor
08/14/2003WO2003067751A2 Digital phase locked loop
08/13/2003CN1436409A Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receiver
08/13/2003CN1436405A 无线电接收机 Radio receiver
08/13/2003CN1435951A Base band circuit of receiver and low frequency cut-off frequency controlling method
08/12/2003US6605989 FM demodulator using a single input signal
08/07/2003WO2003065568A2 Additive dc component detection included in an input burst signal
08/07/2003US20030148750 DC offset correction using dummy amplifier
08/06/2003EP1332548A2 Direct conversion tuner
08/05/2003US6603349 Doppler learning phase lock loop for burst demodulator
07/2003
07/31/2003WO2003063336A2 System and method for i-q mismatch compensation in a low if or zero if receiver
07/31/2003US20030142767 Base band circuit of receiver and low cut-off frequency control method
07/30/2003EP1192709B1 Device and method for demodulating frequency-modulated signals
07/24/2003WO2002054606A3 Zero intermediate frequency receiver using packet acquisition and channel tracking
07/24/2003US20030139167 System and method for I-Q mismatch compensation in a low IF or zero IF receiver
07/24/2003US20030138062 Image reject circuit using sigma-delta conversion
07/23/2003CN1115894C Method and appts. of down frequency conversion
07/23/2003CN1115833C Method and device for digitally demodulating frequency modulated signal
07/23/2003CN1115789C Receiver appts. for two frequency bands
07/17/2003WO2003058815A1 Circuit and method for processing afc signals
07/16/2003CN1430336A Receiver for suppressing image signal
07/16/2003CN1114997C Raidio receiver
07/10/2003WO2002073790A3 Quadrature receiver
07/10/2003WO2002056523A3 Method and apparatus to remove effects of i-q imbalances of quadrature modulators and demodulators in a multi-carrier system
07/10/2003US20030128783 Precision timing generator apparatus and associated methods
07/09/2003EP1326326A1 Demodulator and receiver
07/09/2003EP1325552A2 Calibration of a quadrature receiver
07/09/2003CN1429446A Gain controller for quadrature tranceiver
07/09/2003CN1114304C DC offset compensation for zero IF quadrature demodulator
07/09/2003CN1114280C Signal trap, recording medium replay, and signal extraction device and method
07/08/2003US6591091 System and method for coarse/fine PLL adjustment
07/08/2003US6590950 Bandwidth stabilized PLL
07/08/2003US6590943 Radio receiver
07/03/2003US20030125005 Receiver for rejecting image signal
07/03/2003US20030124981 Method of eliminating a DC component and filtering device obtained by this method
07/02/2003EP1323270A1 Adaptive filtering and dc offset removal for communications systems
07/02/2003CN1113478C Integrated receiver
07/01/2003US6587516 Subscriber unit producing a modulated digital frequency
07/01/2003US6586922 Phase shift circuit and FM detector circuit
06/2003
06/26/2003WO2003052923A2 Frequency-down-converter using sigma-delta modulators
06/26/2003US20030119472 Switched capacitor mixer circuit to attain high gain and linearity in radio frequency receivers
06/25/2003CN1426260A Direct change-over receiver for directly clearing deviation (DC)
06/24/2003US6584305 Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
06/19/2003WO2003050944A1 Phase-locked loop (pll) circuit for selectively correcting clock skew in different modes
06/19/2003US20030112907 Synchronizing carrier frequences of co-channel amplitude-modulated broadcast
06/19/2003CA2468269A1 Phase-locked loop (pll) circuit for selectively correcting clock skew in different modes
06/18/2003EP1320198A2 Direct-conversion receiver for removing DC offset
06/18/2003EP1319267A2 Complex valued delta sigma phase locked loop demodulator
06/18/2003CN1112003C Loop back device of packet communication T1 network
06/18/2003CN1111944C Method and appts. for converting wide band i-f signal to complex (quadrature) baseband signal
06/18/2003CN1111943C Method and device for use with phase modulated signals
06/18/2003CN1111942C Apparatus and method for carrier frequency compensation in FM radio receiver
06/17/2003CA2154646C Small-scale signal adding device and differential detecting device
06/12/2003WO2003049276A1 Demodulator and receiver using it
06/12/2003US20030109241 Direct-conversion receiver for removing DC offset
06/12/2003US20030108139 Register controlled delay locked loop circuit
06/12/2003US20030108138 Phase-locked loop (PLL) circuit for selectively correcting clock skew in different modes
06/12/2003US20030107944 Delayed locked loop implementation in a synchronous dynamic random access memory
06/12/2003US20030107427 Temperature compensation for internal inductor resistance
06/10/2003US6577691 Precision timing generator apparatus and associated methods
06/05/2003WO2003047194A1 Signal processor
06/03/2003US6574458 Method for generating a frequency-modulated signal with improved receivability by a radio receiver
06/03/2003US6573782 Sigma delta FM ratio detector
05/2003
05/29/2003US20030100278 System and method for reduced deviation time domain FM/PM discriminator to achieve a reduced bandwidth frequency or phase modulation communications channels
05/29/2003US20030098743 Fm demodulator using a single input signal
05/27/2003US6570441 Incoherent demodulator and method of incoherently demodulating an IF signal
05/27/2003CA2258009C Dsp implementation of a cellular base station receiver
05/22/2003US20030095201 System and method for superheterodyne frequency multiplication signal expansion to achieve a reduced bandwidth frequency or phase modulation communciation channel
05/21/2003CN1419745A Radio receiver
05/21/2003CN1109439C Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator
05/15/2003WO2003041313A1 Digital fm stereo decoder and method of operation
05/15/2003US20030091128 Digital demodulator, a telecommunications receiver, and a method of digital demodulation
05/15/2003US20030090952 Delayed locked loop implementation in a synchronous dynamic random access memory
05/15/2003US20030090317 FM demodulator having DC offset compensation
05/13/2003US6563893 Carrier-frequency synchronization system for improved amplitude modulation and television broadcast reception
05/08/2003US20030087618 Digital FM stereo decoder and method of operation
05/06/2003US6560448 DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture
05/06/2003US6560447 DC offset correction scheme for wireless receivers
05/06/2003US6559899 Digital blocks television tuner having simple baseband signal processing portion
05/02/2003EP1097508B1 Method and apparatus for compensating for distortion in iq modulators
05/01/2003WO2002039580A3 Direct conversion receiver
05/01/2003US20030081698 Method of conversion and converter of frequency modulated signal into pulse frequency Modulated signal with suppression of carrier frequency components of the pulse frequency modulation
04/2003
04/30/2003CN1107399C Hierarchical transmission digital demodulator
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