| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 05/28/2002 | US6396337 Transistor circuit with direct-coupled stages |
| 05/28/2002 | US6396330 Mixer circuit |
| 05/23/2002 | WO2002041488A2 Self oscillating mixer |
| 05/23/2002 | WO2001080419A3 System and method for frequency translation using an image reject mixer |
| 05/23/2002 | US20020061728 Low noise block down-converter having temperature characteristic compensating circuit |
| 05/23/2002 | US20020060315 Equipment for communication system and semiconductor integrated circuit device |
| 05/22/2002 | EP1207627A1 An efficient GS;/DSC/UMTS (UTRA/FDD) RF transceiver architecture |
| 05/22/2002 | EP1206831A1 Modem for wireless local area network |
| 05/22/2002 | CN1350370A Transceiver |
| 05/22/2002 | CN1085482C Transmitting/receiving signal processing circuit in digital cordless telephone |
| 05/22/2002 | CN1085444C Superteterodyne receiving circuit and superheterodyne receiver |
| 05/21/2002 | US6393299 Radio communication equipment |
| 05/21/2002 | US6393267 Lossless feedback double-balance active mixers |
| 05/21/2002 | US6393266 Preprocessor and related frequency translator |
| 05/21/2002 | US6393260 Method for attenuating spurious signals and receiver |
| 05/21/2002 | US6393258 Process and system for adjusting the level of the spurious lines of the output frequency spectrum of a single-sideband frequency transposition device, in particular incorporated into a mobile telephone |
| 05/21/2002 | US6393070 Digital communication device and a mixer |
| 05/21/2002 | CA2363437A1 Equipment for communication system and semiconductor integrated circuit device |
| 05/16/2002 | WO2002039604A1 Common carrier, multiple output rf upconverter |
| 05/16/2002 | WO2002039580A2 Direct conversion receiver |
| 05/16/2002 | WO2002039579A1 Improvements relating to signal mixers |
| 05/16/2002 | WO2002039578A1 Improvements relating to signal mixers |
| 05/16/2002 | US20020058492 Image reject mixer circuit arrangements |
| 05/16/2002 | US20020058491 Radio receiver |
| 05/16/2002 | US20020058490 Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
| 05/16/2002 | US20020057733 Frequency translator using a cordic phase rotator |
| 05/16/2002 | US20020057132 Differential amplifier having improved balance and linearity |
| 05/15/2002 | CN1349685A Multi-band transceiver utilizing direct conversion receiver and direct conversion receiver |
| 05/15/2002 | CN1084986C Amplifier having distortion compensation and base station for radio communication using the same |
| 05/14/2002 | US6388605 Circuit for generating and/or detecting a radar signal |
| 05/14/2002 | US6388536 Method and apparatus for providing coarse and fine tuning control for synthesizing high-frequency signals for wireless communications |
| 05/14/2002 | US6388529 Grounded emitter amplifier and a radio communication device using the same |
| 05/14/2002 | US6388502 Semiconductor integrated circuit |
| 05/14/2002 | US6388501 MOSFET mixer for low supply voltage |
| 05/10/2002 | WO2002037787A1 Modulator with low sensitivity to amplitude and phase errors of the carrier signal |
| 05/09/2002 | US20020055348 Mixer of communication system |
| 05/09/2002 | US20020055347 Wideband if image rejecting receiver |
| 05/09/2002 | US20020055344 Radio-frequency receiver |
| 05/09/2002 | US20020055337 Quadrature generator with image reject mixer |
| 05/09/2002 | US20020053930 Mixer |
| 05/08/2002 | CN1348629A Method and apparatus for processing a digital signal for analog transmission |
| 05/08/2002 | CN1348625A Direct conversion receiver employing subharmonic frequency translator architecture and related preprocessor |
| 05/07/2002 | US6385439 Linear RF power amplifier with optically activated switches |
| 05/07/2002 | CA2262329C Synchrodyning of vsb and qam final i-f signals supplied by separate converters in a qam/vsb digital tv receiver |
| 05/02/2002 | WO2002035756A2 Active continuous-time filter with increased dynamic range in the presence of blocker signals |
| 05/02/2002 | WO2002035721A1 Two-port demodulation device |
| 05/02/2002 | WO2001048909A3 Quadrature frequency converter |
| 05/02/2002 | WO2000076076A9 Data transmission method and apparatus |
| 05/02/2002 | US20020051503 Receiver in a radio communication system |
| 05/02/2002 | US20020051497 Method and quadrature device for compensating mismatch in parallel paths by switching signals therein |
| 05/02/2002 | US20020051461 Data transmission method and apparatus |
| 05/02/2002 | US20020051091 Process and device for controlling the phase shift between four signals mutually in phase quadrature |
| 05/01/2002 | CN1347203A 调谐器 Tuner |
| 05/01/2002 | CN1347202A Low-noise frequency-reducing device with temp. characteristics compensation circuit |
| 04/30/2002 | US6381449 Frequency converter |
| 04/25/2002 | WO2002033822A2 Circuit arrangement |
| 04/25/2002 | US20020049044 Phase-linear wide band frequency conversion |
| 04/25/2002 | US20020049043 Double double balanced mixer |
| 04/25/2002 | US20020049038 Wireless and wired cable modem applications of universal frequency translation technology |
| 04/25/2002 | US20020048325 Digital down-converter |
| 04/25/2002 | US20020047942 Digital IF demodulator for video applications |
| 04/25/2002 | US20020047940 Modulator immune from temperature variation-induced change in modulation factor |
| 04/25/2002 | US20020047735 Biasing of a mixer |
| 04/24/2002 | EP1199796A1 Frequency Converter |
| 04/24/2002 | CN1083645C Multib and mobile unit communication apparatus |
| 04/23/2002 | US6377315 System and method for providing a low power receiver design |
| 04/19/2002 | CA2358643A1 Phase-linear wide band frequency conversion |
| 04/18/2002 | WO2002031962A2 Quadrature frequency converter |
| 04/18/2002 | WO2000070574A9 Receiver capable of parallel demodulation of messages |
| 04/18/2002 | US20020044087 GPS receiver and method for processing GPS signals |
| 04/18/2002 | US20020044025 Low noise frequency modulator having variable carrier frequency |
| 04/18/2002 | US20020044024 SSB transmitter |
| 04/18/2002 | US20020044020 Amplifier circuit |
| 04/18/2002 | US20020044002 Mixer circuitry |
| 04/18/2002 | DE10051463A1 DC voltage signal generation and amplification circuit for radio receiver has difference amplifier stage in parallel with final amplifier stage, multiplier and adder |
| 04/17/2002 | EP1198061A2 Low noise block down-converter having temperature characteristic compensating circuit |
| 04/17/2002 | EP1196999A1 Method and apparatus for processing a digital signal for analog transmission |
| 04/17/2002 | CN1083197C I/Q quadraphase modulator circuit |
| 04/17/2002 | CN1083174C Circuit for synchronous transmitter local oscillator frequency in digital microwave system applied in same wave channel |
| 04/16/2002 | US6374093 Shifting of frequency range and bandwidth of receivers using a mixer attenuating the image frequency |
| 04/16/2002 | US6373883 Radio receiver and a radio transmitter |
| 04/16/2002 | US6373346 Laser driver pre-emphasis and de-emphasis method and/or architecture with tuning and duty cycle control |
| 04/16/2002 | US6373345 Modulator structure for a transmitter and a mobile station |
| 04/11/2002 | US20020042257 Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
| 04/11/2002 | US20020041340 TV signal receiving tuner capable of outputting oscillation signal having wide frequency band by means of single local oscillator |
| 04/10/2002 | EP1195899A2 TV tuner capable of outputting a wide band signal by means of a single local oscillator |
| 04/10/2002 | EP1195889A2 Tuner |
| 04/10/2002 | EP1195002A2 Device for frequency down-converting using undersampling , and method |
| 04/10/2002 | CN1344435A 无线fm接收机 Fm radio receiver |
| 04/10/2002 | CN1082750C Automatic tuning of radio transceiver |
| 04/09/2002 | US6370372 Subharmonic mixer circuit and method |
| 04/09/2002 | US6370371 Applications of universal frequency translation |
| 04/09/2002 | US6370365 Selective call radio having an integrated frequency conversion circuit |
| 04/09/2002 | US6369655 Feedback circuit and amplifier and mixer comprising the same |
| 04/04/2002 | WO2002027954A1 Subharmonic mixer circuit and method |
| 04/04/2002 | WO2002027952A1 Frequency conversion |
| 04/04/2002 | US20020039893 Frequency conversion |
| 04/04/2002 | DE10046586A1 System und Verfahren zur Datenübertragung System and method for data transmission |
| 04/04/2002 | DE10045565A1 Mixer circuit for HF data transmission system has emitter-follower device coupled to its signal input |
| 04/04/2002 | DE10045564A1 Mixer circuit for HF data transmission system has bias voltage supplied via input resistance having associated linearisation element |