Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 1 - Demodulation of amplitude-modulated oscillations
Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890)
04/2000
04/27/2000DE19845122A1 Resonance circuit alignment method
04/18/2000US6052024 Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems
04/12/2000EP0993125A2 A Quadrature low-if homodyne radio receiver
04/12/2000EP0992108A2 If-receiver
04/06/2000CA2280377A1 A quadrature low-if homodyne radio receiver
04/04/2000US6046631 Detector coupled to transmission line by microstrip line
04/04/2000US6046623 Signal detecting circuit
04/04/2000US6046618 Phase correction circuit and method therefor
03/2000
03/29/2000EP0988692A1 Power level sense circuit
03/07/2000US6035186 Integrated receiver
03/01/2000EP0982866A1 Method for convolutional coding and transmission of a stream of packets of digital data, and a method and apparatus for corresponding decoding
03/01/2000EP0982847A1 Detection circuit
02/2000
02/29/2000US6031419 Demodulator for contactless chip card
02/24/2000WO1999067894A3 Two-way wireless communication between a group of devices
02/09/2000CN1244322A Non-coherent six-port receiver
02/09/2000CN1049310C 无线电接收机 Radio receiver
02/08/2000US6023191 Method and apparatus for detecting an input signal
02/03/2000WO2000005815A1 Single chip cmos transmitter/receiver and vco-mixer structure
02/01/2000US6020839 Analog technique to detect asymmetric radio frequency pulses
01/2000
01/26/2000CN1242672A NTSC video signal receivers with reduced sensitivity to interference from Co-channel digital television signals
01/26/2000CN1242668A Using special NTSC receiver to detect when Co-channel interfering NTSC signal accompanies digital TV signal
12/1999
12/29/1999WO1999067894A2 Two-way wireless communication between a group of devices
12/29/1999WO1999056388A3 If-receiver
12/22/1999EP0965208A2 Demodulation unit and method of demodulating a quadrature signal
12/14/1999US6002727 Interference signal cancellation system
12/09/1999WO1999063673A1 Sequential decoder, and receiver using sequential decoder
12/08/1999EP0962057A1 A method of and a device for analog signal sampling
12/07/1999US5999223 System for controlling the operating mode of an adaptive equalizer within a digital TV signal receiver
11/1999
11/30/1999US5996112 Area-efficient surviving paths unit for Viterbi decoders
11/24/1999EP0959558A1 Stereo/bi-channel demodulator
11/18/1999DE19822100A1 Stereo-/Zweiton-Demodulator Stereo / two-demodulator
11/16/1999US5987315 Diode circuit in dielectric waveguide device, and detector and mixer using the diode circuit
11/11/1999WO1999057805A1 Methods and apparatus for timing recovery of vestigial sideband (vsb) modulated signals
11/09/1999US5982822 Viterbi decoder
11/04/1999WO1999056388A2 If-receiver
11/03/1999EP0636288B1 Demodulating logarithmic amplifier
10/1999
10/28/1999WO1999055015A1 Direct conversion receiver
10/28/1999WO1999043132A3 A method and a circuit for am demodulation
10/27/1999EP0951751A1 Synchronous demodulator
10/19/1999US5970104 Method and apparatus for generating branch metrics and branch indices for convolutional code Viterbi decoders
10/12/1999US5966400 Receiver
10/12/1999US5966188 Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers
10/06/1999CN2342517Y Card modem
10/05/1999US5963597 For demodulating data from a quadrature-modulated signal
09/1999
09/29/1999CN1230309A Compensation for second order intermodulation in homodyne receiver
09/28/1999US5959699 Reception mode control in radio receivers for receiving both VSB and QAM digital television signals
09/15/1999CN1228895A Method and apparatus for compensating for varying D. C. offset in sampled signal
09/08/1999CN1228222A Receiver for independent sideband signals
09/01/1999CN1227677A Frequency lock indicator for FPLL demodulated signal having a pilot
08/1999
08/26/1999WO1999043132A2 A method and a circuit for am demodulation
08/26/1999CA2320699A1 A method and a circuit for am demodulation
08/25/1999EP0937339A1 Calibration of n-port receiver
08/25/1999EP0862816B1 Method and device for removing signal residues in quadrature signal modulator-demodulators
08/24/1999US5943371 Memory efficient time de-interleave, de-puncture and viterbi decoder circuitry
08/18/1999EP0936783A2 Asynchronous clock for adaptive equalization
08/12/1999WO1999027689A3 Demodulation unit and method of demodulating a quadrature signal
08/11/1999CN1044657C Temp. coefficient controlled radio frequency signal detecting circuitry
08/10/1999US5936462 AM demodulator using limiter amplifier RSSI output as baseband signal
08/10/1999CA2102108C Phase compensation method and apparatus
07/1999
07/27/1999CA2149584C Digital vsb detector with final i-f carrier at submultiple of symbol rate, as for hdtv receiver
07/22/1999WO1999037019A1 Detector circuit
07/14/1999EP0928514A1 Receiver capable of demodulating multiple digital modulation formats
07/14/1999CN1223030A DC offset compensation method and apparatus
07/13/1999US5922964 Amplitude detecting device
06/1999
06/24/1999WO1999018657A3 Down/up-conversion apparatus and method
06/22/1999US5915028 Amplitude demodulator
06/22/1999US5914986 Receiving circuit
06/03/1999WO1999027689A2 Demodulation unit and method of demodulating a quadrature signal
06/02/1999EP0919091A1 Receiver for independent sideband signals
06/01/1999US5909644 AM radio receiver
06/01/1999US5909472 Digital circuit clocking using a dual side band suppressed carrier clock modulated signal
05/1999
05/14/1999WO1999008376A9 Static viterbi detector for channels utilizing a code having time varying constraints
05/06/1999WO1999022473A1 An analog technique to detect asymmetric radio frequency pulses
05/06/1999WO1999022443A1 Technique for recovering an amplitude modulated carrier
05/06/1999EP0913036A1 Compensation for second order intermodulation in a homodyne receiver
05/06/1999DE19847663A1 Detector
04/1999
04/28/1999EP0910913A1 Method and apparatus for compensating for a varying d.c. offset in a sampled signal
04/20/1999US5896061 Homodyne receiver and process for correcting the converted received signal
04/15/1999WO1999018659A1 Synchronous demodulator
04/15/1999WO1999018658A1 Method and apparatus for detecting data in magnetic recording using decision feedback
04/15/1999WO1999018657A2 Down/up-conversion apparatus and method
03/1999
03/30/1999US5889819 EMI reduction using double sideband suppressed carrier modulation
03/25/1999WO1999014852A1 Filtering arrangement and slope detector for quadrature amplitude modulated signals
03/25/1999DE19741181A1 Filter device for demodulated quadrature amplitude modulated signal
03/24/1999EP0903689A1 Demodulator for contactless chip card
03/17/1999EP0902532A1 Circuit arrangement
03/16/1999CA2113710C Carrier detector
02/1999
02/18/1999WO1999008426A1 Non-coherent six-port receiver
02/18/1999WO1999008393A1 Calibration of n-port receiver
02/18/1999WO1999008376A1 Static viterbi detector for channels utilizing a code having time varying constraints
02/18/1999DE19735283A1 Method to evaluate amplitude modulated signal
02/16/1999CA2120095C Temperature-coefficient controlled radio frequency signal detecting circuitry
02/10/1999EP0896455A1 Non-coherent 6-port receiver
02/09/1999US5869986 Power level sense circuit
01/1999
01/13/1999CN1205132A Decoder for trellis encoded signal mixed with NTSC co-channel interference and white noise
01/12/1999US5859607 Receiver with digital processing of a phase-splitted input signal
01/12/1999CA2152497C Method and apparatus for detecting an input signal level
12/1998
12/17/1998WO1998057469A1 Receiver for independent sideband signals
12/17/1998WO1998057421A1 Power level sense circuit
12/15/1998US5850598 Homodyne receiver and process for direct conversion
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