| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 04/04/2001 | CN1290427A 无线电接收机 Radio receiver |
| 04/03/2001 | US6212369 Merged variable gain mixers |
| 04/03/2001 | US6211718 Low voltage double balanced mixer |
| 04/03/2001 | CA2091728C Electrically-and-magnetically-coupled, batteryless, portable, frequency divider |
| 03/29/2001 | WO2001022634A1 Radio transmitter/receiver and method of radio communication |
| 03/29/2001 | DE19934215C1 Quadrature mixer for HF transmission applications uses analogue demodulator providing feedback signal used for evaluation and correction of offset error for each quadrature component |
| 03/28/2001 | CN1289477A If amplifier |
| 03/27/2001 | US6208290 GPS receiver utilizing a communication link |
| 03/22/2001 | WO2001020795A2 Apparatus for interference compensation of a direct conversion transceiver and method |
| 03/22/2001 | WO2001020791A1 A method and a device for producing a signal |
| 03/21/2001 | EP1085665A2 Digital receiver |
| 03/21/2001 | EP1085652A2 Frequency converter and high frequency tuner |
| 03/21/2001 | EP1085651A1 Demodulator using selection of a harmonic signal at the level of intermediate frequency , and process |
| 03/21/2001 | CN1288607A Quadrature modulator and demodulator |
| 03/20/2001 | US6205325 Active radio frequency mixer circuit with feedback |
| 03/20/2001 | US6205324 Broadband double-balanced frequency mixer |
| 03/20/2001 | US6205183 Methods of suppressing reference oscillator harmonic interference and related receivers |
| 03/20/2001 | CA2007149C Homodyne down-converter with digital hilbert transform filtering |
| 03/15/2001 | WO2001019047A1 Phase interpolation receiver for angle modulated rf signals |
| 03/15/2001 | WO2001018954A1 System for down-converting a signal using a discrete fourier-transform calculation and method |
| 03/15/2001 | WO2001018953A2 Gilbert cell balanced fet mixer |
| 03/15/2001 | DE19942274A1 Amplification of high frequency input signal by separating intermediate frequency signal into envelope component and phase-modulated carrier component |
| 03/14/2001 | EP1083669A1 Radio terminal device |
| 03/14/2001 | EP1082817A1 Merged variable gain mixers |
| 03/14/2001 | EP0846380B1 Burst mode optical digital receiver and repeater |
| 03/14/2001 | CN1287712A Method and arrangement for correcting phase error in linearization loop of power amplifier |
| 03/14/2001 | CN1287711A Radio transmitter |
| 03/13/2001 | US6201952 Radio communication apparatus |
| 03/08/2001 | WO2001017122A1 Improved method and apparatus for up- and down-conversion of radio frequency (rf) signals |
| 03/08/2001 | WO2001017121A1 Improved method and apparatus for up-conversion of radio frequency (rf) signals |
| 03/08/2001 | WO2001017120A2 Freqency translator using a non-periodic local oscillator signal |
| 03/08/2001 | DE19940277A1 Verfahren zur Signalumsetzung eines modulierten reellwertigen analogen Bildsignals sowie zugehöriger Signalumsetzung Method for signal conversion of a modulated real-valued analog image signal and associated signal conversion |
| 03/07/2001 | EP1081871A1 Radio terminal |
| 03/07/2001 | EP1081848A1 Frequency translator with suppressed leakage of the local oscillator , and process |
| 03/07/2001 | EP1080549A1 A receiver and receiving method for wireless communication |
| 03/07/2001 | CN1286831A Transceiver architecture in dual band mobile phone |
| 03/07/2001 | CN1286830A Tuning bandwidth minimization for low voltage dual band receiver |
| 03/07/2001 | CN1286824A Simplified reference frequency distribution in mobile phone |
| 03/07/2001 | CN1062993C Dual-function double balanced mixer circuit |
| 03/01/2001 | WO2001015432A2 Method for the signal conversion of a modulated real-value analogue image signal and corresponding signal conversion |
| 03/01/2001 | WO2001015315A1 Method for regulating a frequency offset in a base-station receiver of a data communications system |
| 02/28/2001 | EP1078467A1 Multiband frequency generation using a single pll-circuit |
| 02/28/2001 | CN1285974A Method and device in a telecommunication system |
| 02/28/2001 | CN1285973A Linear RF power amplifier with optically activated switches |
| 02/28/2001 | CN1285653A Electronic tuner |
| 02/27/2001 | US6195563 Radio receiver and radio transmitter |
| 02/27/2001 | US6195539 Method and apparatus for rejecting image signals in a receiver |
| 02/27/2001 | CA2201352C Multi-channel transceiver having an adaptive antenna array and method |
| 02/27/2001 | CA2190904C Rf filter arrangement with image trap |
| 02/22/2001 | DE19939811A1 Minimising frequency offset in receiver of base station of telecommunications system by calculating reference frequency from converter reference frequencies such that frequency offset is zero |
| 02/20/2001 | US6192229 Diode mixer circuit |
| 02/20/2001 | US6192225 Direct conversion receiver |
| 02/20/2001 | US6191638 Mixer circuit including separated local (LO) terminal and intermediate frequency (IF) terminal |
| 02/15/2001 | WO2001011767A1 Modem for wireless local area network |
| 02/15/2001 | WO2000028664A8 Fully integrated tuner architecture |
| 02/15/2001 | DE10035183A1 Mathematical addition of two analogue values using an electronic transistor circuit |
| 02/14/2001 | EP1076424A1 Transmitter/receiver unit |
| 02/07/2001 | EP1074093A1 Direct conversion receiver |
| 02/06/2001 | US6184739 Advanced near ideal mixer |
| 01/31/2001 | EP1073205A2 Dual-band high-frequency transmission mixer having two outputs |
| 01/31/2001 | EP1073195A2 Double frequency converter making possible shifting of the frequencies of first and second local oscillation signals by the same frequency |
| 01/31/2001 | CN1282165A Carrier changer and changing method |
| 01/31/2001 | CN1061489C Direct frequency conversion tuner |
| 01/30/2001 | US6181258 Receiver capable of parallel demodulation of messages |
| 01/30/2001 | US6181212 Phase locked loop for generating two disparate, variable frequency signals |
| 01/24/2001 | EP1070387A1 Dc offset correction for direct conversion tuner ic |
| 01/24/2001 | CN1281597A Receiver with sigma-delta analog-digital converter receiver |
| 01/24/2001 | CN1061187C Low voltage RF amplifier and mixer with single bias block and method |
| 01/23/2001 | US6178320 Radio receiver with a double-balanced mixer circuit having signal damping elements |
| 01/23/2001 | US6178319 Microwave mixing circuit and down-converter |
| 01/23/2001 | US6177964 Broadband integrated television tuner |
| 01/18/2001 | WO2001005048A1 Structure of a radio-frequency front end |
| 01/18/2001 | WO2001005044A1 Tuned low power/low noise mixer |
| 01/18/2001 | WO2000044087A3 Down-converter using sine to square wave converter |
| 01/16/2001 | US6175746 Multiband mobile unit communication apparatus |
| 01/11/2001 | WO2001003285A1 Apparatus for receiving and processing a radio frequency signal |
| 01/10/2001 | EP1067674A1 Apparatus and method for receiving and processing a radio frequency signal |
| 01/10/2001 | EP1067673A2 Mixer with improved linearity |
| 01/10/2001 | EP1066678A1 Digital signal processing architecture for multi-band radio receiver |
| 01/04/2001 | WO2001001564A1 Semiconductor circuit |
| 01/04/2001 | WO2000062419A3 Mos variable gain amplifier |
| 01/03/2001 | CN1278976A Qam modulation using direct digital synthesis and upconversion |
| 12/27/2000 | EP0864207A4 Coplanar mixer assembly |
| 12/26/2000 | US6167247 Local oscillator leak cancellation circuit |
| 12/26/2000 | US6167099 Multi-channel digital transceiver and method |
| 12/19/2000 | US6163689 Negative self-bias circuit for FET mixers |
| 12/19/2000 | US6163687 Tuning module for a dual frequency PLL synthesized tuner |
| 12/19/2000 | US6163684 Broadband frequency synthesizer |
| 12/19/2000 | US6163235 Active load circuit with low impedance output |
| 12/19/2000 | CA2192937C Electronic viewing aid |
| 12/14/2000 | WO2000076076A1 Data transmission method and apparatus |
| 12/14/2000 | WO2000076060A1 Dual-band image rejection mixer |
| 12/14/2000 | WO2000076059A2 Gilbert cell mixer |
| 12/12/2000 | US6161004 Method and apparatus for rejecting image signals in a receiver |
| 12/12/2000 | US6161000 Transmit-receive system and transmission method, in particular for a mobile telephone |
| 12/12/2000 | US6160425 Frequency converter |
| 12/12/2000 | US6160280 Field effect transistor |
| 12/07/2000 | WO2000074236A1 Band-pass filter with carrier frequency reduction |
| 12/07/2000 | WO2000074233A1 System and method for linearizing a cmos differential pair |
| 12/07/2000 | DE19924716A1 Gegentaktanordnung Push-pull arrangement |