Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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09/26/2001 | EP0753229B1 Adaptive telephone interface |
09/26/2001 | CN1315076A Optical amplifiers and optical transmission line |
09/26/2001 | CN1315075A Control of power ratios for in-phase and quadrature channels in a communications system |
09/26/2001 | CN1314767A Transmitter circuit with frequency self optimization |
09/26/2001 | CN1071983C Radio frequency receiver |
09/26/2001 | CN1071959C Radio transceiver including transmitter power control circuit |
09/25/2001 | US6295445 Automatic gain controlling method, automatic gain controlling apparatus, and communication receiving apparatus |
09/25/2001 | US6295444 Non-predictive tone-coded-squelch frequency determination method |
09/25/2001 | US6295442 Amplitude modulation to phase modulation cancellation method in an RF amplifier |
09/20/2001 | WO2001069809A1 Cdma receiving method and cdma receiving apparatus |
09/20/2001 | WO2001069780A1 Method and arrangement for gain control |
09/20/2001 | US20010023177 Radio telephone apparatus |
09/20/2001 | US20010022841 Sound system |
09/20/2001 | US20010022821 Amplitude deviation correction circuit |
09/20/2001 | US20010022533 Rf-fet bias and switching circuit based on a quasi-open loop regulation |
09/19/2001 | EP1134904A2 Transmitter circuit with frequency self-optimization |
09/19/2001 | CN1314025A Methods for adjusting audio signals responsive to changes ina power supply level and related communications devices |
09/19/2001 | CN1071519C Filter with feed-forward AGC |
09/18/2001 | US6292654 Digital noise blanker for communications systems and methods therefor |
09/18/2001 | US6292232 Receiving apparatus |
09/18/2001 | US6292122 Digital-to-analog interface circuit having adjustable time response |
09/16/2001 | CA2334157A1 Transmitter circuit with frequency self-optimization |
09/13/2001 | WO2001067621A2 Transmitter architectures for communications systems |
09/13/2001 | WO2001067599A2 Rf-fet bias and switching circuit based on a quasi-open loop regulation |
09/13/2001 | WO2001067598A1 Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
09/13/2001 | WO2001067597A1 Preamplifier |
09/13/2001 | WO2001067595A1 Instrumentation amplifier |
09/13/2001 | WO2001067593A2 Improved method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
09/13/2001 | WO2001067591A2 Digital-to-analog interface circuit having adjustable time response |
09/13/2001 | US20010021644 Intermodulation control device and method in mobile communication system |
09/13/2001 | US20010020872 High frequency power amplifier, and communication apparatus |
09/13/2001 | US20010020867 Automatic gain controller and automatic gain control method, and radio communications apparatus equipped with automatic gain control function |
09/13/2001 | CA2739554A1 Transmitter architectures for communications systems |
09/13/2001 | CA2739521A1 Transmitter architectures for communications systems |
09/13/2001 | CA2702881A1 Transmitter architectures for communications systems |
09/13/2001 | CA2402468A1 Improved method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
09/12/2001 | EP1131885A1 Circuit and method for linearizing amplitude modulation in a power amplifier |
09/12/2001 | CN1312971A Digital automatic gain control |
09/12/2001 | CN1312656A Colourity overload protection device |
09/12/2001 | CN1312612A Low-noise amplifier with automatically linear-intensified and controllable gain and method thereof |
09/11/2001 | US6289487 Efficient modified viterbi decoder |
09/11/2001 | US6289205 Transmitter for communication devices |
09/11/2001 | US6289044 Automatic gain control circuit for a modem receiver |
09/11/2001 | US6288612 Radio communication apparatus and radio frequency power amplifier |
09/11/2001 | US6288609 Gain controllable low noise amplifier with automatic linearity enhancement and method of doing same |
09/11/2001 | CA2206751C Reception automatic gain control system and method |
09/07/2001 | WO2001065758A2 Multimode fast attack automatic gain control (agc) loop for narrow band receivers |
09/07/2001 | WO2001065722A2 Method and transmission circuit for producing a transmission signal |
09/07/2001 | WO2001065686A1 Automatic gain control method, automatic gain control processor, and demodulator |
09/07/2001 | WO2001065685A1 Method and transmitting circuit for generating a transmission signal |
09/07/2001 | WO2001065684A1 Method and transmission circuit for producing a transmission signal |
09/07/2001 | WO2001065683A1 Method and transmission circuit for generating a transmission signal |
09/07/2001 | WO2001065682A2 Method and transmission circuit for producing a transmission signal |
09/06/2001 | US20010019102 Light reception circuit capable of receiving large level optical signal |
09/05/2001 | EP1130772A2 Automatic gain controller and automatic gain control method, and radio communications apparatus equipped with automatic gain control function |
09/05/2001 | EP1130735A2 Circuit arrangement for regulating the transmission power of a battery operated radio device |
09/05/2001 | EP1129600A1 Method for in-situ measuring and in-situ correcting or adjusting a signal process in a hearing aid with a reference signal processor |
09/05/2001 | EP1129522A1 Method and apparatus for automatic gain control |
09/05/2001 | EP0684703B1 Circuit for removing random fm noise |
09/05/2001 | CN1311919A Systems and methods of management of current consumption and performance in a receiver down converter of a wireless device |
09/04/2001 | US6285863 System and method for providing automatic gain control with high dynamic range |
09/04/2001 | US6285257 Feedback type variable gain amplifier |
09/04/2001 | US6285251 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control |
08/30/2001 | WO2001063795A1 Envelope - tracking amplifier having improved gain, terminal device for mobile communication using the same, and method for improving gain relating thereto |
08/30/2001 | WO2001063762A1 Receiver |
08/30/2001 | WO2001063754A1 Electronic circuit comprising a differential pair provided with degeneration means for degenerating a transconductance of the differential pair |
08/30/2001 | US20010018335 Down converter using C/N ratio correcting circuit of base station for mobile communication network |
08/30/2001 | US20010018331 Transmission system |
08/30/2001 | DE10056517A1 Amplifier with variable gain has gain controller that generates gain control signals applied to first and third amplifier stages to set them to predetermined gains, fixed gain second stage |
08/29/2001 | EP1128555A1 Receiver |
08/29/2001 | EP1128550A2 Noise reducer and noise reduction method with expanded gate pulses |
08/29/2001 | EP1127408A1 Variable gain amplifier with improved linearity |
08/28/2001 | US6282296 Audio reproducing apparatus |
08/28/2001 | US6282218 Control circuit with automatic DC offset |
08/28/2001 | US6282042 Data processing apparatus and methods |
08/28/2001 | US6281945 VSB—dependent automatic gain control |
08/28/2001 | US6281757 High frequency signal amplifying circuit and a receiver using the same |
08/23/2001 | WO2001061885A1 Method for repeating isofrequency signals and isofrequency signal repeater |
08/23/2001 | WO2001061865A1 Current-to-voltage converter with controllable gain, and signal processing circuit comprising such converter |
08/23/2001 | WO2001061845A1 Method and circuit arrangement for the regulation of the transmission power of a transmitter |
08/23/2001 | WO2001061844A1 Radio receiver and radio receiving method |
08/23/2001 | US20010016475 Noise reducer and noise reduction method with expanded gate pulses |
08/23/2001 | US20010016048 Audio reproduction arrangement and telephone terminal |
08/23/2001 | US20010016019 Automatic gain control circuit, data communication device and automatic gain control method |
08/23/2001 | DE10004434A1 Verfahren und Schaltungsanordnung zur Regelung der Ausgangsleistung eines Leistungsverstärkers Method and circuit for controlling the output power of a power amplifier |
08/22/2001 | EP1126599A2 Automatic gain control method and apparatus, and radio communications apparatus having automatic gain control function |
08/22/2001 | EP1126598A2 Oscillator output amplifier |
08/22/2001 | EP1126458A1 Method for adjustment of volume control of a digital sound recording |
08/22/2001 | EP1126457A2 A circuit and method for controlling the gain of an amplifier |
08/22/2001 | EP1126456A2 A circuit and method for controlling the gain of an amplifier based on the sum of samples of the amplified signal |
08/22/2001 | CN1309832A Pre-recorded sigma delta values for power amplifier control |
08/22/2001 | CN1309475A Automatic gain control method and device, and radio communication apparatus with said function |
08/21/2001 | US6278751 Receiver for digital voice broadcasting |
08/21/2001 | US6278324 Analog amplifier with monotonic transfer function |
08/21/2001 | US6278322 Transconductance amplifier and automatic gain control device using it |
08/16/2001 | WO2001060056A2 Automatic gain control |
08/16/2001 | WO2001008442A3 Method and agc device for controlling the amplification of a microphone with an integrated amplifier with a working point which can be adjusted by external wiring |
08/16/2001 | US20010014613 Communication system, device and method |
08/16/2001 | US20010014593 High-efficiency modulating rf amplifier |
08/16/2001 | US20010014587 Transmission power control device capable of varying a transmission power at a wide range |