| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 07/19/2001 | DE19963645A1 Radio broadcast signal receiver with mixer stage provided by phase reversal device controlled by carrier signal for selective inversion of input signal |
| 07/17/2001 | US6263199 Circuit and method of signal frequency conversion |
| 07/17/2001 | US6263198 Multi-layer printed wiring board having integrated broadside microwave coupled baluns |
| 07/17/2001 | US6262464 Encapsulated MEMS brand-pass filter for integrated circuits |
| 07/12/2001 | US20010007816 System and method for radio signal reconstruction using signal processor |
| 07/11/2001 | CN1068471C Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver |
| 07/10/2001 | US6259903 Tuner and if amplifier |
| 07/10/2001 | US6259399 GPS receivers and garments containing GPS receivers and methods for using these GPS receivers |
| 07/10/2001 | US6259325 Single-ended signals to differential signals converter |
| 07/10/2001 | US6259312 Circuit arrangement for adjusting the impedance of a differential active component |
| 07/10/2001 | US6259301 Method and apparatus for selecting from multiple mixers |
| 07/10/2001 | CA2065283C Image cancelling mixer circuit on an integrated circuit chip |
| 07/05/2001 | WO2001048909A2 Quadrature frequency converter |
| 07/05/2001 | US20010007151 Fully integrated tuner architecture |
| 07/05/2001 | DE19960986A1 Switchable input circuit for radio receiver e.g. car radio has circuit for varying inductance forming selection device |
| 07/04/2001 | EP1113573A1 Tuner IC and receiving apparatus employing the same |
| 07/04/2001 | CN1302476A Apparatus and method of linearizing power amplifier in mobile radio communication system |
| 07/03/2001 | US6256358 Digital signal processing architecture for multi-band radio receiver |
| 07/03/2001 | US6255889 Mixer using four quadrant multiplier with reactive feedback elements |
| 06/28/2001 | WO2001047261A1 Multiple channel upconverter having adjacent channel output and method of implementing the same |
| 06/28/2001 | WO2001047202A2 Phase comparator using undersampling |
| 06/28/2001 | WO2001047101A1 Oscillator/mixer circuit |
| 06/28/2001 | US20010005151 Semiconductor circuitry |
| 06/27/2001 | EP1111803A1 Dual mode with a single receiver circuit |
| 06/27/2001 | EP1111773A1 Semiconductor circuit |
| 06/27/2001 | EP1111772A1 Method and apparatus providing improved intermodulation distortion protection |
| 06/27/2001 | EP1110304A1 Direct-conversion tuner integrated circuit for direct broadcast satellite television |
| 06/27/2001 | EP1110303A1 System and method for frequency up-conversion |
| 06/26/2001 | US6253066 Apparatus and method for producing a plurality of output signals with fixed phase relationships therebetween |
| 06/26/2001 | US6252472 Modulator having little parasitic coupling |
| 06/26/2001 | US6252468 Signal generator with improved impedance matching characteristics |
| 06/26/2001 | US6252438 Frequency-voltage conversion circuit and receiving apparatus |
| 06/21/2001 | WO2000042659A9 System and method for esd protection |
| 06/21/2001 | DE19958908A1 Schaltungsanordnung zur Direktmodulation Circuit arrangement for direct modulation |
| 06/20/2001 | EP0850511B1 Transmission process in which a conversion oscillator signal is synthesised by means of a fractional n-phase-shift control loop |
| 06/14/2001 | WO2001043295A2 Receiver circuit |
| 06/14/2001 | WO2001043275A2 Circuit configuration for direct modulation |
| 06/14/2001 | WO2001015432A3 Method for the signal conversion of a modulated real-value analogue image signal and corresponding signal conversion |
| 06/13/2001 | CN1299538A Transmitter/receiver unit |
| 06/13/2001 | CN1067193C Improvement in or relating to communications receivers |
| 06/12/2001 | US6246865 Device and method for controlling distortion characteristic of predistorter |
| 06/07/2001 | WO2001015315A8 Method for regulating a frequency offset in a base-station receiver of a data communications system |
| 06/05/2001 | US6242964 Low-distortion lossless feedback double-balanced active mixers using linearity augmentation |
| 06/05/2001 | US6242963 Differential mixer with improved linearity |
| 06/05/2001 | CA2182382C Multi-channel digital transceiver and method |
| 05/31/2001 | WO2001039385A1 Improvements in or relating to polyphase receivers |
| 05/31/2001 | WO2001039372A1 An active polyphase filter with transconductor cross-coupling of filter sections |
| 05/31/2001 | WO2001039364A1 Two stage quatrature down converter for gps and glonass |
| 05/31/2001 | WO2001039362A2 Gilbert-cell mixer using bipolar transistors |
| 05/31/2001 | WO2001039361A2 Phase shifting applications of universal frequency translation |
| 05/31/2001 | US20010002113 Circuit arrangement for adjusting the impedance of a differential active component |
| 05/30/2001 | EP1103098A1 Dual-band image rejection mixer |
| 05/30/2001 | CN1066590C Balanced modulator |
| 05/29/2001 | US6240281 Command protocol for circuits used for receiving microwave signals and device implementing the protocol |
| 05/29/2001 | US6240144 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 05/29/2001 | US6240142 Quadrature modulator and demodulator |
| 05/29/2001 | US6239645 Complementary tuned mixer |
| 05/25/2001 | WO2001037430A1 Arrangement and method for implementing transmitter unit of digital data transmission system |
| 05/25/2001 | WO2001020795A3 Apparatus for interference compensation of a direct conversion transceiver and method |
| 05/25/2001 | WO2000052840A8 Multi-band transceiver utilizing direct conversion receiver and direct conversion receiver |
| 05/24/2001 | US20010001543 Frequency-voltage conversion circuit and receiving apparatus |
| 05/23/2001 | EP1101285A1 Single chip cmos transmitter/receiver and vco-mixer structure |
| 05/23/2001 | EP0691057B1 I/q quadraphase modulator circuit |
| 05/23/2001 | DE10015177A1 High gain mixer circuit has impedance elements provided between respective differential transistor pairs |
| 05/22/2001 | US6236847 Receiver and filter arrangement comprising polyphase filters |
| 05/22/2001 | US6236845 System and method for radio signal reconstruction using signal processor |
| 05/22/2001 | US6236688 Receiving circuit |
| 05/17/2001 | WO1994028682A3 All-wave television channel selector with frequency synthesizer |
| 05/16/2001 | CN1295401A Demodulator for high-definition TV receiver |
| 05/15/2001 | US6233444 Radio receiving method and radio receiving apparatus |
| 05/15/2001 | US6233442 High frequency apparatus with reduced adjusting error |
| 05/15/2001 | US6233431 Radio page receiver with automatic cyclical turn on |
| 05/15/2001 | US6233287 Method and apparatus for mixing signals |
| 05/15/2001 | US6232848 Low voltage topology for radio frequency integrated circuit design |
| 05/15/2001 | CA2020387C Station selecting apparatus |
| 05/08/2001 | US6230001 Active commutated double balanced mixer |
| 05/08/2001 | US6230000 Product detector and method therefor |
| 05/08/2001 | US6229634 Burst mode optical receiver and repeater |
| 05/02/2001 | EP1096792A2 Television signal transmitter for eliminating interference caused by differential signal of two frequency converters |
| 05/02/2001 | EP1096667A1 Receiving apparatus shared by multiple tuners |
| 05/02/2001 | EP1095447A1 Circuit arrangement providing impedance translation filtering |
| 05/02/2001 | EP0882331A4 Apparatus and method for digitizing and detecting a received radio frequency signal |
| 05/02/2001 | CN1065395C High frequency receiving apparatus |
| 05/01/2001 | US6226509 Image reject mixer, circuit, and method for image rejection |
| 05/01/2001 | US6225936 Direct digital downconverter and method for converting an analog signal to a digital signal |
| 04/26/2001 | DE10027064A1 Doppler-Impulsradarsystem Doppler pulse radar system |
| 04/25/2001 | EP1094597A1 Receiving module and receiver |
| 04/18/2001 | CN1291827A Demodulating method capable of maintaining specular purity |
| 04/17/2001 | US6219536 Mixer circuit |
| 04/17/2001 | US6219535 Semiconductor amplifier and frequency converter |
| 04/17/2001 | US6219534 Radio communication apparatus |
| 04/12/2001 | WO2001026215A2 Down converter using subsampling |
| 04/12/2001 | WO2001026214A2 Frequency converter and method |
| 04/12/2001 | DE19950025A1 Arrangement for converting TV intermediate frequency signals has single-stage analogue mixer whose output spectral component is between 0 and digital processing sampling frequency |
| 04/11/2001 | EP1090456A1 Image rejection mixer |
| 04/10/2001 | US6215430 Method and apparatus for processing a digital signal for analog transmission |
| 04/07/2001 | CA2323023A1 Double balanced mixer |
| 04/05/2001 | WO2001024358A1 System and method for a single conversion tuner |
| 04/04/2001 | EP1089469A1 Satellite broadcast reception system capable of connecting with a plurality of satellite receivers |
| 04/04/2001 | EP1089426A1 Frequency synthesis device |