| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
|---|
| 02/19/1998 | WO1998007233A1 Headset interface |
| 02/12/1998 | WO1998006174A1 High-frequency integrated circuit for high-frequency radio transmitter-receiver suppressed in influence of high-frequency power leakage |
| 02/11/1998 | EP0823145A1 Tunable interstage filter |
| 02/11/1998 | CN1173077A Reception automatic gain control system and method |
| 02/10/1998 | US5717773 Sound system gain and equalization circuit |
| 02/10/1998 | US5717770 Programmable hearing aid with fuzzy logic control of transmission characteristics |
| 02/04/1998 | CN1172384A Temperature compensated wide dynamic range power detection circuitry for portable RF transmission terminals |
| 02/03/1998 | US5715527 Mobile communication device having an output power sensor succeeding a transmission filter |
| 02/03/1998 | US5714908 Power correction method and circuit |
| 01/28/1998 | EP0821478A2 Electrical muting circuit |
| 01/28/1998 | EP0821477A2 Digitally controllable attenuator circuit for audio |
| 01/28/1998 | EP0821476A2 Method and device for offset compensation of a signal processing circuit |
| 01/28/1998 | EP0821357A2 AGC circuit of disk storage apparatus |
| 01/28/1998 | CN1171866A Gain controllable amplifier, receiver comprising gain controllable amplifier and method of controlling signal amplitudes |
| 01/28/1998 | CN1171707A Output control unit of mobile communication system and its controlling method |
| 01/28/1998 | CN1171661A Digital signal precessing method and apparatus |
| 01/27/1998 | US5712593 Linear power amplifier with distortion detection |
| 01/27/1998 | US5712475 Light receiving circuit with variable threshold circuit |
| 01/20/1998 | US5710991 Apparatus and method for controlling and measuring output power of transmitter |
| 01/20/1998 | US5710990 Transmitter which adjusts peak-to-average power of a multicarrier signal by switching between a group of channels and a phase-adjusted group of channels |
| 01/20/1998 | US5710521 Out-of-band compensation for non-linear device |
| 01/15/1998 | WO1998001964A1 Modular transmission system and method |
| 01/15/1998 | WO1998001946A1 Controller-based radio frequency amplifier module and method |
| 01/15/1998 | WO1997043826A3 Gain control |
| 01/14/1998 | EP0818880A2 Gain control circuit for a linear power amplifier |
| 01/14/1998 | EP0632941B1 Optical receiver |
| 01/14/1998 | CN1037057C Cricuit for removing random FM noise |
| 01/14/1998 | CN1037056C Amplifier for use in radiotelephone |
| 01/13/1998 | US5708681 Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver |
| 01/13/1998 | US5708376 Variable-gain amplifying device |
| 01/08/1998 | WO1998000996A1 System and method for controlling the level of signals output to transmission media in a distributed antenna network |
| 01/08/1998 | WO1998000943A1 Intelligent fiberoptic receivers and methods of operating and manufacturing the same |
| 01/08/1998 | WO1998000929A1 Device and method for radio transmitters |
| 01/08/1998 | WO1998000912A1 Bias circuit for a power amplifier |
| 01/08/1998 | WO1998000910A1 Circuit arrangement comprising a feedback loop |
| 01/08/1998 | WO1998000907A1 Circuit arrangement comprising a power amplifier stage |
| 01/08/1998 | WO1997042704A3 Degenerated differential pair with controllable transconductance |
| 01/08/1998 | DE19710474A1 Temperature compensated logarithmic amplifier for mobile telephone |
| 01/08/1998 | DE19626664A1 Traffic control method for emergency vehicle |
| 01/08/1998 | CA2257887A1 Bias circuit for a power amplifier |
| 01/07/1998 | EP0817375A2 Automatic gain control circuit using pin diode and bidirectional CATV receiver including such circuit |
| 01/07/1998 | EP0817373A2 Negative feedback amplifier |
| 01/07/1998 | EP0815641A1 Dual action automatic sound level control |
| 01/06/1998 | US5706357 Sound signal output circuit and method |
| 01/06/1998 | US5706308 Signal processing apparatus and method for sigma-delta modulated signals including gain adjustment |
| 01/06/1998 | US5706215 Method and system for adjusting replacement component characteristics |
| 01/06/1998 | CA2102735C Apparatus for adjusting the efficiency of electric power amplification |
| 12/31/1997 | CN1169086A Radio selective call receiver capable of adjusting radio signal level |
| 12/30/1997 | US5703528 Audio amplifier turn-off control circuit |
| 12/30/1997 | US5703504 Feedforward adaptive threshold processing method |
| 12/29/1997 | EP0814569A1 Receiver with dynamic attenuation control for adaptive intermodulation performance enhancement |
| 12/29/1997 | EP0814568A1 Wireless telephone intermodulation performance enhancement techniques |
| 12/29/1997 | EP0814567A2 Intermodulation performance enhancement by dynamically controlling RF amplifier current |
| 12/24/1997 | WO1997049178A1 Variable-gain amplifier with pseudo-logarithmic gain control |
| 12/24/1997 | CN1168751A Method for substituting bar speech frames in digital communication system |
| 12/24/1997 | CN1168588A Transmission apparatus |
| 12/24/1997 | CN1168577A Radio communication apparatus for synthesizing radio |
| 12/24/1997 | CN1168510A Method of controlling in computer monitor with sound processing functions |
| 12/23/1997 | US5701352 Tone suppression automatic gain control for a headset |
| 12/18/1997 | WO1997048181A1 Power delivery system and method of controlling the power delivery system for use in a radio frequency system |
| 12/18/1997 | DE19623930A1 Microwave amplifier protection method against excessive control |
| 12/17/1997 | EP0813297A1 Amplifier with digital gain control and camera using the same |
| 12/17/1997 | EP0813295A1 Amplifier with digital gain control and camera using such an amplifier |
| 12/17/1997 | EP0813294A2 Gain controller |
| 12/17/1997 | EP0812492A1 Dual audio program system |
| 12/17/1997 | EP0812491A1 Out-of-band compensation for non-linear device |
| 12/17/1997 | EP0448729B1 Tune detecting circuit |
| 12/17/1997 | CN1168033A Improvements in or relating to radio receivers |
| 12/16/1997 | US5699424 System identification method and apparatus by adaptive filter |
| 12/16/1997 | US5699017 Automatic gain control circuit |
| 12/16/1997 | US5699013 Tri-state audio differential driver |
| 12/16/1997 | CA2047870C Automatic power control apparatus |
| 12/11/1997 | DE19723248A1 Self=regulating amplifier circuit with amplification factor control |
| 12/11/1997 | DE19718154A1 Verfahren und Schaltung für eine Basisbandsignaldämpfung Method and circuit for a baseband signal attenuation |
| 12/10/1997 | EP0812064A2 Reception automatic gain control system and method |
| 12/10/1997 | EP0812063A2 Gain-variable amplifier having small DC output deviation and small distortion |
| 12/10/1997 | EP0812062A2 Gain-variable amplifier with wide control range |
| 12/10/1997 | EP0681771A4 Gain control circuit for synchronous waveform sampling. |
| 12/10/1997 | EP0507919B1 Controlled slew rate amplifier |
| 12/10/1997 | CN1167366A Automatic gain control circuit of compensating gain controlling property change |
| 12/09/1997 | US5697096 Narrow-band communication apparatus |
| 12/09/1997 | US5697093 Zero IF receivers |
| 12/09/1997 | US5697081 Intermodulation distortion reduction circuit utilizing variable attenuation |
| 12/09/1997 | US5697074 Dual rate power control loop for a transmitter |
| 12/09/1997 | US5697073 For use in a communications system |
| 12/09/1997 | US5697072 Transmission signal level control device for radio transmitter |
| 12/09/1997 | US5696798 Multiple antenna home base for digital cordless telephones |
| 12/09/1997 | CA2109410C High efficiency dual mode power amplifier apparatus |
| 12/04/1997 | WO1997045953A1 Method and apparatus for dynamic automatic gain control when pilot signal is lost |
| 12/03/1997 | EP0810760A1 Demodulator |
| 12/03/1997 | EP0810722A2 Mobile telephone set with automatic level control means of sound signal |
| 12/03/1997 | CN1166708A Electromagnetic-noise protection circuit |
| 12/02/1997 | US5694436 Gain control system for handling periodic noises |
| 12/02/1997 | US5694366 OP amp circuit with variable resistance and memory system including same |
| 12/02/1997 | US5694069 Variable resistor and gain control circuit and integrated circuit having the variable resistor |
| 12/02/1997 | CA2076711C Power controller |
| 11/26/1997 | CN1166247A Improvements to a logarithmic converter |
| 11/25/1997 | US5692058 Dual audio program system |
| 11/25/1997 | US5691666 Full threshold FM deviation compression feedback demodulator and method |
| 11/25/1997 | CA2145652C Method and apparatus for controlling a peak envelope power of a pa |