| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 09/08/1999 | EP0940910A1 Power amplifier for a radio transmitter and mobile telephone with a radio transmitter |
| 09/08/1999 | EP0940008A1 Amplifier with controllable output current |
| 09/08/1999 | EP0940007A1 Headset interface |
| 09/08/1999 | CN1227992A Satellite station system including speech message correction device and method of improving quality of speech messages |
| 09/07/1999 | US5950112 Satelite broadcast tuner capable of processing both QPSK modulation signal and FM signal |
| 09/07/1999 | US5949886 Setting a microphone volume level |
| 09/07/1999 | US5949287 Power amplifier |
| 09/07/1999 | US5949285 Gain-variable amplifier having small DC output deviation and small distortion |
| 09/02/1999 | WO1999044283A2 A device for generating an ac amplitude-dependent indicator |
| 09/01/1999 | EP0939486A2 Filter circuit |
| 08/31/1999 | US5946608 Mixer circuit |
| 08/31/1999 | US5946607 Method of apparatus for automatic gain control, and digital receiver using same |
| 08/31/1999 | US5944814 Parallel processing digital audio processing apparatus |
| 08/26/1999 | WO1999043083A1 Amplifier for radio transmission |
| 08/25/1999 | EP0938188A2 Variable gain amplifier circuit |
| 08/24/1999 | US5943612 Radio receivers |
| 08/24/1999 | CA2117797C Method and apparatus for receiving electromagnetic radiation within a frequency band |
| 08/18/1999 | EP0935847A1 Method and apparatus for controlling signal amplitude level |
| 08/18/1999 | EP0783801A4 Digital agc for a cdma radiotelephone |
| 08/17/1999 | US5940517 Sound-volume display unit for use in audio system |
| 08/17/1999 | US5940451 Automatic gain control in quadrature phase shift keying demodulator |
| 08/17/1999 | US5940143 High-definition television signal receiving apparatus and gain control circuit thereof |
| 08/17/1999 | CA2184225C Wide range variable output amplifier apparatus with high efficiency |
| 08/12/1999 | WO1999030415A3 Noise reduction method and apparatus |
| 08/11/1999 | EP0935340A2 Method and device for controlling the gain in a signal processing system |
| 08/11/1999 | EP0777933A4 Spread spectrum radiotelephone having adaptive transmitter gain control |
| 08/10/1999 | US5937356 Radio selective call receiver capable of adjusting radio signal level |
| 08/10/1999 | US5937336 Transmission/reception apparatus |
| 08/10/1999 | US5936470 Audio amplifier having linear gain control |
| 08/05/1999 | WO1999039446A1 Apparatus and method for receiving a wideband communication signal in a wireless communication system |
| 08/04/1999 | EP0933880A2 Booster for a handy phone |
| 08/04/1999 | EP0824785B1 Secondary surveillance radar |
| 08/04/1999 | EP0803149A4 Data independent automatic gain control circuit for telecommunication applications |
| 08/03/1999 | US5933767 Apparatus and method for tuning the gain of a transmitter utilizing cartesian feedback |
| 08/03/1999 | US5933466 Radio communications apparatus with a combining diversity |
| 08/03/1999 | CA2151003C Power amplifier with clipping level control |
| 07/29/1999 | WO1999029056A3 Optical receiver |
| 07/28/1999 | EP0932253A2 Soft gain update method & apparatus |
| 07/28/1999 | EP0931384A1 Data transmission equipment |
| 07/27/1999 | US5930693 Method of controlling an agc loop in a radio receiver |
| 07/27/1999 | US5930692 Method and apparatus for increasing receiver immunity to interference |
| 07/27/1999 | US5930375 Audio mixing console |
| 07/27/1999 | US5930286 Gain imbalance compensation for a quadrature receiver in a cordless direct sequence spread spectrum telephone |
| 07/27/1999 | US5930212 Positioning control system including a servo-error signal generating circuit |
| 07/27/1999 | US5929982 Active APD gain control for an optical receiver |
| 07/27/1999 | US5929707 Amplifier system with controlled reactance |
| 07/27/1999 | US5929706 Automatic gain control method and device |
| 07/27/1999 | US5929701 Feed forward amplifier system and method |
| 07/27/1999 | CA2101328C Gain control circuit for radio transmitter |
| 07/22/1999 | WO1999031798A3 A communication system, device and method |
| 07/21/1999 | EP0930720A2 Mobile telephone and method of operation for the same |
| 07/21/1999 | EP0929937A1 Transceiver stage for a mobile telecommunications unit |
| 07/21/1999 | EP0929936A1 Multiple preamplifier circuit for a television tuner |
| 07/21/1999 | CN1223759A Device and method for radio transmitters |
| 07/20/1999 | US5926749 Amplifier circuit having common AGC to IF and RF amplifiers for use in a transmitter |
| 07/20/1999 | US5926068 Variable gain amplifier or analog multiplexer with feedforward current blocking |
| 07/15/1999 | WO1999025072A3 Control method and control arrangement |
| 07/15/1999 | WO1999022366A3 Improved audio reproduction arrangement and telephone terminal |
| 07/15/1999 | DE19840147A1 Method of automatically controlling a sound generating apparatus e.g. a television or CD player etc |
| 07/14/1999 | EP0929164A1 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 07/14/1999 | EP0929150A1 A method of and a circuit for automatic gain control (AGC) |
| 07/14/1999 | EP0776548A4 Linear-in-decibel variable gain amplifier |
| 07/13/1999 | US5923164 Apparatus and method for automatically tuning the gain of an amplifier |
| 07/08/1999 | WO1999034506A1 Reception method and receiver |
| 07/08/1999 | DE19839128A1 Amplifier with variable amplification characteristic |
| 07/07/1999 | EP0928063A2 Wideband CATV amplifier with microprocessor-based slope and gain control |
| 07/07/1999 | CN1222045A Telephone system comprising base station and at least one handset, method implemented in such system, subscriber station and base station suitable for such system |
| 07/06/1999 | US5920631 Multiplex transmission device for multiple-channel signals, especially multiple-channel audio signals |
| 07/06/1999 | US5920590 Variable bandwidth spread spectrum device |
| 07/06/1999 | US5920277 Secondary surveillance radar |
| 07/06/1999 | CA2162310C Power controller for rf transmitters |
| 07/01/1999 | WO1999033203A1 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 06/30/1999 | EP0926837A1 Automatic gain control for frequency hopping communications receivers |
| 06/30/1999 | EP0926820A2 Soft-limiting control circuit for variable gain amplifiers |
| 06/30/1999 | EP0926819A2 Mobile radio receiver |
| 06/30/1999 | EP0926575A1 Automatic setting of gain in control loops |
| 06/30/1999 | EP0925645A1 Muting a microphone in radiocommunication systems |
| 06/30/1999 | CN1221261A Frequency hopping communications receivers |
| 06/30/1999 | CN1221254A Method and device for automatic setting of gain in control loops |
| 06/30/1999 | CN1043944C Switched signal processing circuit |
| 06/30/1999 | CN1043939C RF amplifier with signal-level control, and radio transmitter equipped therewith |
| 06/29/1999 | US5918166 Level control circuit for portable radio communication apparatus |
| 06/29/1999 | US5917865 Digital automatic gain control employing two-stage gain-determination process |
| 06/29/1999 | US5917380 Digitally gain-controlled amplifier, and camera using such an amplifier |
| 06/29/1999 | US5917373 To compensate distortion generated in an amplifier of a data transfer system |
| 06/29/1999 | US5917372 Automatic gain control circuit |
| 06/24/1999 | WO1999031799A1 Power saving device for radio communication terminal |
| 06/24/1999 | WO1999031798A2 A communication system, device and method |
| 06/23/1999 | EP0924866A1 Transmission system comprising at least one satellite station and one base station, the station comprising a device for the correction of speech messages and a method for enhancing speech quality |
| 06/22/1999 | US5915030 Electric muting circuit |
| 06/22/1999 | US5914989 PRML system with reduced complexity maximum likelihood detector |
| 06/22/1999 | US5914641 Gate voltage control circuit of a power amplifier |
| 06/22/1999 | US5914637 Gain-variable amplifier with wide control range |
| 06/17/1999 | WO1999030534A1 Peak to peak signal detector for audio system |
| 06/17/1999 | WO1999030426A1 Programmable linear receiver |
| 06/17/1999 | WO1999030417A1 Automatic gain-controlled vhf/uhf antenna tuning apparatus |
| 06/17/1999 | WO1999030416A1 An amplifier for continuous high gain, narrowband signal amplification |
| 06/17/1999 | WO1999030415A2 Noise reduction method and apparatus |
| 06/17/1999 | WO1999030385A1 Vhf/uhf self-tuning planar antenna system |
| 06/16/1999 | CN1220056A Method for automatically regulating audio response for improved intelligibility |