Patents for H03D 1 - Demodulation of amplitude-modulated oscillations (4,890) |
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08/22/2001 | CN1309835A Single chip CMOS transmitter/receiver and VCO-mixer structure |
08/01/2001 | CN1306699A Direct conversion receiver |
07/24/2001 | US6265940 Detector and transmitter incorporating the detector |
07/19/2001 | WO2001052452A1 Wireless digital high speed communications |
07/17/2001 | US6262630 Rapidly-responding diode detector with temperature compensation |
07/10/2001 | CA2250448C Detector |
07/05/2001 | WO2001048909A2 Quadrature frequency converter |
07/05/2001 | US20010006539 Vestigial sideband receiver and method for restoring carrier wave |
06/12/2001 | US6246867 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver |
06/05/2001 | US6243569 Direct conversion circuit for radio frequency signals |
06/05/2001 | CA2221905C Iq combiner technology in modulated backscatter system |
05/29/2001 | US6239625 Detection circuit |
05/23/2001 | EP1101285A1 Single chip cmos transmitter/receiver and vco-mixer structure |
05/23/2001 | EP0691057B1 I/q quadraphase modulator circuit |
05/22/2001 | US6236688 Receiving circuit |
05/17/2001 | WO2001035538A2 Low spurious homodyne receiver |
05/03/2001 | WO2001031798A1 Communications terminal having a receiver and method for removing known interferers from a digitized intermediate frequency signal |
05/03/2001 | WO2001031776A2 Device for demodulating an amplitude-modulated signal |
05/03/2001 | CA2356376A1 Device for demodulating an amplitude-modulated signal |
05/02/2001 | CN1065395C High frequency receiving apparatus |
04/18/2001 | EP1093219A1 Circuit to demodulate an intermediate frequency video signal |
04/18/2001 | CN1292189A Method and circuit for demodulation |
04/18/2001 | CN1291827A Demodulating method capable of maintaining specular purity |
04/17/2001 | USRE37138 Log-polar signal processing |
04/12/2001 | DE19948745A1 Schaltungsanordnung zur Demodulation eines Zwischenfrequenz-Videosignals A circuit arrangement for demodulating an intermediate-frequency video signal, |
04/04/2001 | EP1089427A1 Method for the comparison of the amplitudes of two electrical signals |
04/04/2001 | EP0928514A4 Receiver capable of demodulating multiple digital modulation formats |
04/04/2001 | CN1289930A Method for comparison of amplitudes of two electric signals |
04/03/2001 | US6212661 Static viterbi detector for channels utilizing a code having time varying constraints |
04/03/2001 | US6211924 Decimation of baseband DTV signal prior to channel equalization in digital television signal receivers |
03/29/2001 | WO2001022571A1 Apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal |
03/27/2001 | US6208850 Direct conversion receiver per-selection |
03/21/2001 | EP1085651A1 Demodulator using selection of a harmonic signal at the level of intermediate frequency , and process |
03/21/2001 | CN1288606A Detector circuit |
03/15/2001 | WO2001019047A1 Phase interpolation receiver for angle modulated rf signals |
03/13/2001 | US6201840 Method and apparatus for detecting data in magnetic recording using decision feedback |
03/13/2001 | US6201430 Computational circuit |
03/01/2001 | WO2001015317A1 Automatic gain control loop for frequency conversion of quadrature signals |
02/28/2001 | EP1078450A1 Methods and apparatus for timing recovery of vestigial sideband (vsb) modulated signals |
02/21/2001 | EP1076925A1 Rectifier circuit |
02/20/2001 | US6192225 Direct conversion receiver |
02/20/2001 | CA2296861C Television receiver for tuning a signal including a pilot signal |
02/20/2001 | CA2296855C Receiving and demodulating a digital television signal |
02/15/2001 | WO2001011774A1 Am demodulator using carrier phase correction |
02/13/2001 | US6188880 Apparatus and method for reducing low-frequency distortion in frequency converted signals |
02/07/2001 | EP1074093A1 Direct conversion receiver |
02/06/2001 | US6184942 Adaptively receiving digital television signals transmitted in various formats |
01/24/2001 | EP1071203A1 Stereo demultiplexer |
01/24/2001 | EP1071202A2 PLL amplitude demodulator |
01/16/2001 | US6175269 Demodulation unit and method of demodulating a quadrature |
01/10/2001 | CN1279544A Broadcast receiver |
01/03/2001 | EP1065853A1 Broadcast receiver for multi-transmission system |
12/29/2000 | CA2312531A1 Broadcast receiver |
12/28/2000 | DE10023734A1 Quadrature demodulator, adds user signal to pseudo=noise giving pseudo=noise superimposed signal, mixes this with local signal giving converted signal, multiplies this with pseudo=noise giving correlated signal, then integrates |
12/27/2000 | CN1059992C Carrier independent timing recovery system for vestigial sideband modulated signal |
12/14/2000 | WO2000076062A1 Improved diode detector |
12/14/2000 | WO2000048370A3 Modem with a reduced state maximum likelihood sequence estimator |
12/07/2000 | WO2000045523A3 A homodyne radio receiver |
12/06/2000 | EP1058451A1 Digital AM demodulator, particularly for demodulating TV signals |
12/06/2000 | EP1057253A2 Down/up-conversion apparatus and method |
11/29/2000 | CN1275258A Method and apparatus for detecting data in magnetic recording using decision feedback |
11/29/2000 | CN1275012A Quadrature demodulator, quadrature demodulating method and recording medium thereof |
11/28/2000 | CA2009381C Biasing circuitry for a diode detector |
11/15/2000 | CN1273707A Down/up-conversion apparatus and method |
11/09/2000 | DE19920362A1 Digitaler AM-Demodulator A digital AM demodulator |
11/08/2000 | EP1050983A2 Digital AM demodulator |
11/08/2000 | EP1050956A1 Detector circuit |
11/08/2000 | EP1050141A2 A method and a circuit for am demodulation |
11/07/2000 | CA2049544C Logarithmic amplifier/detector delay compensation |
11/02/2000 | EP1049261A2 Direct conversion radio receiver |
10/26/2000 | WO2000064042A2 Device for frequency down-converting using undersamling, and method |
10/25/2000 | CN1057885C Phase detector in carrrier recovery network for vestigial sideband single |
10/24/2000 | US6137545 Reception mode control in radio receivers for receiving both VSB and QAM digital television signals |
10/17/2000 | US6133964 Digital demodulator and method therefor |
10/04/2000 | CN1268830A Multiple frequency band data communication equipment and communication method and storage medium therefor |
09/27/2000 | EP1039649A2 Method and apparatus for multiband data communication , and storage medium |
09/26/2000 | CA2074124C Transmitter with nonlinearity correction circuits |
09/14/2000 | WO2000054400A1 Rectifier circuit |
09/14/2000 | DE19931295A1 Gleichrichterschaltung Rectifier circuit |
09/13/2000 | CN1266549A Static viterbi detector for channels utilizing code having time varying constraints |
09/12/2000 | US6118825 Digital data transmission device and method, digital data demodulation device and method, and transmission medium |
09/06/2000 | CN1056254C Full-wave rectifying circuit |
08/31/2000 | WO2000051254A1 Radio receiver and method for preloading an average dc-offset into a channel filter |
08/30/2000 | CN1056027C Terrestrial and satellite television reception tuner |
08/22/2000 | US6107838 Simultaneous two-way communication system using a single communication port |
08/17/2000 | WO2000048370A2 Modem with a reduced state maximum likelihood sequence estimator |
08/16/2000 | CN1055581C Demodulator circuit and demodulating method |
08/15/2000 | US6104442 Radio receiver for receiving both VSB and QAM digital HDTV signals |
08/03/2000 | WO2000045523A2 A homodyne radio receiver |
08/03/2000 | WO2000030265A3 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver |
07/25/2000 | US6094235 Digital television broadcast receiver that demodulates an intermediate frequency signal having a frequency higher than a frequency of a received signal |
07/19/2000 | EP1020024A1 Filtering arrangement and slope detector for quadrature amplitude modulated signals |
07/18/2000 | US6091306 Circuit configuration with main and subordinate oscillators |
06/28/2000 | EP1012964A1 Single side-band modulation system for use in digitally implemented multicarrier transmission systems |
06/14/2000 | EP1009101A2 Direct conversion receiver |
06/02/2000 | WO1999063673A9 Sequential decoder, and receiver using sequential decoder |
05/25/2000 | WO2000030265A2 Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver |
05/18/2000 | WO2000028708A1 Method for ask demodulation and ask demodulator |
05/17/2000 | EP1001543A1 Sequential decoder, and receiver using sequential decoder |
05/02/2000 | CA2178198C Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator |