Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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10/08/1996 | US5564099 Radio signal reception with a PLL frequency controlled for an IF signal depending on coexistence of a spurious signal with the radio signal |
10/08/1996 | US5564098 Ultra low-power integrated circuit for pseudo-baseband down-conversion of GPS RF signals |
10/08/1996 | US5564097 Spread intermediate frequency radio receiver with adaptive spurious rejection |
10/08/1996 | US5563617 Doppler microwave sensor |
10/08/1996 | US5563545 Low cost monolithic GaAs upconverter chip |
10/01/1996 | US5561403 Oscillator and modulator arrangements on a circuit board |
09/26/1996 | DE19536431C1 Integrated microwave silicon component, e.g. as 50 Ohm wideband preamplifier, oscillator or mixer |
09/25/1996 | CN1032891C Device for modulator |
09/24/1996 | US5559468 Feedback loop closure in a linear transmitter |
09/24/1996 | US5559457 Double-balanced mixer circuit |
09/19/1996 | WO1996028885A1 Slope, drift and offset compensation in zero-if receivers |
09/18/1996 | CN1131481A Line interface apparatus and method for isolating data terminal equipment from the line |
09/17/1996 | US5557632 Demodulation and roll-off filter apparatus |
09/17/1996 | US5557222 Delayed detection type demodulator |
09/11/1996 | EP0489749B1 Image canceling mixer circuit on an integrated circuit chip |
09/03/1996 | US5553319 Routing YIG-tuned mixer |
09/03/1996 | US5552734 Local oscillator frequency multiplier and mixing circuit comprising a squaring circuit |
08/28/1996 | EP0728391A1 Clock-recovery circuit |
08/28/1996 | EP0426812B1 Gallium-arsenide switching mixer |
08/27/1996 | US5551076 Circuit and method of series biasing a single-ended mixer |
08/27/1996 | US5551074 Balanced reflection transformer |
08/22/1996 | WO1996025809A1 Method and apparatus for reducing quantization noise |
08/22/1996 | WO1996025790A1 Improvements in or relating to communications receivers |
08/22/1996 | DE19609811A1 Double-conversion TV tuner arrangement for all-band reception off-air or from CATV input |
08/22/1996 | CA2185026A1 Method and apparatus for reducing quantization noise |
08/20/1996 | US5548840 Balanced mixer circuit with improved linearity |
08/20/1996 | US5548839 Wide band radio-frequency converter having multiple use of intermediate frequency translators |
08/20/1996 | US5548831 FM Receiver having multiple IF stages |
08/20/1996 | US5548244 Method for converting an input signal |
08/14/1996 | EP0726646A1 Frequency converter capable of reducing noise components in local oscillation signals |
08/06/1996 | CA2066851C Multiple user digital receiver apparatus and method with combined multiple frequency channels |
08/01/1996 | WO1996023365A1 Rf mixer with extended dynamic range |
07/31/1996 | CN1128091A Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver |
07/31/1996 | CN1127943A System with multiple source antennae integrated with a lownoise frequency converter |
07/30/1996 | US5542114 Radio receiver for suppressing frequency drift in an intermediate frequency stage |
07/24/1996 | EP0723335A1 Radio receiver apparatus of orthogonal detection type comprising local oscillator means with improved automatic frequency control arrangement |
07/23/1996 | US5539776 All digital if-to-baseband signal converter |
07/17/1996 | EP0721702A1 Line interface apparatus and method for isolating data terminal equipment from the line |
07/17/1996 | EP0721697A1 Dwarf waves mixer realized by windowing |
07/16/1996 | US5537676 Method of receiving data signals in a radio transceiver using low cost components |
07/11/1996 | WO1996021292A1 Wideband frequency signal digitizer and method |
07/11/1996 | WO1996021288A1 Multi-channel digital transceiver and method |
07/09/1996 | US5535445 Mixer circuit |
07/09/1996 | US5535247 Frequency modifier for a transmitter |
07/09/1996 | US5534830 Thick film balanced line structure, and microwave baluns, resonators, mixers, splitters, and filters constructed therefrom |
07/02/1996 | US5532637 Linear low-noise mixer |
06/27/1996 | WO1996019864A1 Receiver circuit |
06/27/1996 | WO1996019863A1 Image-reject mixers |
06/26/1996 | EP0718966A1 Amplifier circuit |
06/26/1996 | EP0718964A2 Switchable oscillator circuit and method |
06/26/1996 | EP0506727B1 A method and a device for radio receivers if (intermediate frequency) signal detection |
06/25/1996 | US5530928 Balanced dual mode mixer apparatus |
06/25/1996 | US5530927 Doubly balanced superconductive mixer network |
06/25/1996 | US5530382 Phase comparator |
06/19/1996 | EP0717502A1 Frequency synthesiser for a broadband VHF-UHF receiver |
06/19/1996 | EP0717491A2 High precision, low phase noise synthesizer with vector modulator |
06/19/1996 | CN1125017A Terrestrial and satellite television reception tuner |
06/19/1996 | CN1125016A Direct conversion tuner |
06/18/1996 | US5528769 High electron mobility transistor monolithic integrated circuit receiver |
06/12/1996 | EP0716500A2 Mixer and frequency conversion process using the same |
06/12/1996 | CN1124554A I/Q quadraphase modulator circuit |
06/11/1996 | US5525937 Frequency conversion circuit with UHF/VHF common PLL buffer |
06/06/1996 | WO1996017441A1 Receiving circuit |
06/05/1996 | EP0715403A1 A satellite tuner stage |
06/05/1996 | EP0715402A1 Frequency mixing circuit having a low signal leakage between input signal paths |
06/05/1996 | EP0715401A1 Frequency divider |
05/29/1996 | EP0714177A2 Radiocommunication system operating in a time shared control |
05/29/1996 | EP0714163A1 Low supply voltage mixer |
05/28/1996 | US5521545 Collector-injection mixer with radio frequency signal applied to collectors of lower transistor pair |
05/22/1996 | CN1122993A Transmitting/receiving signal processing circuit in digital cordless telephone |
05/21/1996 | US5519885 Method to generate different frequency signals in a digital radio telephone |
05/15/1996 | EP0712104A2 Multi-channel transponder with channel amplification at a common lower frequency |
05/14/1996 | US5517688 MMIC FET mixer and method |
05/14/1996 | US5517687 Subharmonic image rejection and image enhancement mixer |
05/14/1996 | US5517684 Radio communication system having current control circuit |
05/08/1996 | EP0711031A1 Transmit mixer with current mode input |
05/08/1996 | CA2162225A1 Transmit mixer with current mode input |
05/07/1996 | US5515014 Interface between SAW filter and Gilbert cell mixer |
05/07/1996 | US5514992 Low-distortion cascode circuit |
05/01/1996 | EP0709991A2 Apparatus and method for adjusting microwave BPSK modulator and mixer |
05/01/1996 | CN1121657A Oscillator and frequency synthesizer and communication apparatus using the oscillator |
04/30/1996 | US5513390 Biased FET mixer |
04/30/1996 | US5513388 For use with a receiver |
04/25/1996 | WO1996012341A1 Wide band radio-frequency converter having multiple use of intermediate frequency translators |
04/25/1996 | DE19538002A1 Time-share mixer circuit, esp. for microwave monolithic superheterodyne receiver |
04/25/1996 | CA2202769A1 Wide band radio-frequency converter having multiple use of intermediate frequency translators |
04/24/1996 | EP0707757A1 Microwave transmission system |
04/24/1996 | CN1121284A Digital radio transmission-reception apparatus |
04/17/1996 | EP0707357A1 Antenna system with multiple feeders integrated in a low noise converter (LNC) |
04/17/1996 | EP0706730A1 Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver |
04/17/1996 | CN1120777A Digital data receiver |
04/10/1996 | EP0706259A1 Automatic calibration of carrier suppression and loop phase in a cartesian amplifier |
04/09/1996 | US5507036 Apparatus with distortion cancelling feed forward signal |
04/09/1996 | US5507025 Method and apparatus for satellite receiver with variable predetection bandwidth |
04/09/1996 | US5507017 Control of attenuation and amplification in foward and feedback paths for power control for cartesian amplifiers |
04/03/1996 | EP0704122A1 Process and arrangement for adjusting the local oscillators of a receiver in a multi-channel transmission system |
03/27/1996 | CN1119369A Dual-function double balanced mixer |
03/20/1996 | EP0701746A1 Terrestrial and satellite television reception tuner |
03/20/1996 | EP0701745A1 Direct conversion tuner |
03/13/1996 | CN1118535A Correcting circuit for mixing circuit, receiver using same, and frequency spectrum-inverting circuit using same |