| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 05/04/1993 | US5208548 For replacing an analog variable resistor in an audio amplifier |
| 04/28/1993 | EP0538870A2 Digital modulator with digital power control circuit |
| 04/28/1993 | CN1071540A Intermittent operation receiver |
| 04/27/1993 | US5206606 Control circuit for signal level |
| 04/27/1993 | US5206603 Circuit arrangement with electronically controllable transfer characteristic |
| 04/21/1993 | EP0537959A2 CMOS-Compander |
| 04/21/1993 | EP0537792A1 Power amplifier, in particular, audio amplifier |
| 04/21/1993 | EP0537733A2 Satellite amplifier control device |
| 04/21/1993 | EP0537690A2 Burst control circuit for use in TDMA communications system |
| 04/20/1993 | US5204977 Apparatus and method of automatic gain control in a receiver |
| 04/20/1993 | US5204976 Receivers for mobile telephone systems |
| 04/20/1993 | US5204973 Receiver capable of quickly suppressing defective effect of multipath reflection interference |
| 04/20/1993 | US5204971 Vehicle sound system |
| 04/20/1993 | US5204909 Audio processing system using delayed audio |
| 04/20/1993 | US5204908 Sound system with rate controlled, variable attenuation |
| 04/20/1993 | US5204637 Power detection technique for automatic amplifier power control |
| 04/13/1993 | US5203019 Radio receiver with improved automatic gain control |
| 04/13/1993 | US5202645 Stabilized transient response of a cascode CMOS amplifier |
| 04/13/1993 | US5202553 Enhanced performance optical receiver having means for switching between high and low amplifier configurations |
| 04/07/1993 | EP0535839A1 Apparatus and method for smooth audio scaling |
| 04/07/1993 | EP0535669A1 Burst signal transmitter |
| 04/07/1993 | EP0507919A4 Controlled slew rate amplifier |
| 04/07/1993 | CN1070782A Apparatus for virtual expansion of power supply capacity |
| 04/06/1993 | US5201068 Radio telecommunications apparatus |
| 04/06/1993 | US5201009 Signal processor |
| 04/06/1993 | US5200826 TV signal receiving double conversion television tuner system having automatic gain control provisions |
| 04/06/1993 | US5200708 Apparatus for the virtual expansion of power supply capacity |
| 04/06/1993 | CA2015553C Radio transmitter capable of compensating for a frequency characteristic of an antenna and/or a coupling circuit |
| 04/04/1993 | CA2077056A1 Apparatus and method for smooth audio scaling |
| 04/01/1993 | DE4210707C1 Automatic volume control for loudspeaker system - driving loudspeaker with signal calculated by multiplying input signal with quotient of time-averaged rectified voltage derived from radiated signal and detected noise |
| 03/31/1993 | EP0534484A1 Pulse power amplifying circuit capable of producing an output signal having a desired waveform |
| 03/30/1993 | US5199110 Transmitting power control circuit |
| 03/30/1993 | US5199079 Supply voltage responsive audible transient (POP) suppression arrangement |
| 03/30/1993 | US5199049 Circuit and method of digital carrier detection for burst mode communication systems |
| 03/24/1993 | CN1070297A Reduce noise interference during handoff |
| 03/23/1993 | US5197099 Multiple-channel audio reproduction apparatus |
| 03/23/1993 | US5196807 Amplifying circuit |
| 03/23/1993 | US5196806 Output level control circuit for use in rf power amplifier |
| 03/23/1993 | US5196596 Higher aldehyde separation process |
| 03/18/1993 | WO1993005591A1 Signal level control in a fiber communications system |
| 03/18/1993 | WO1993005571A1 Push-pull optical receiver having gain control |
| 03/17/1993 | EP0532203A1 Power controller |
| 03/17/1993 | EP0531362A1 Circuit arrangement for regulating signals |
| 03/16/1993 | US5195075 Output level controlling apparatus |
| 03/16/1993 | US5194865 Analog-to-digital converter circuit having automatic range control |
| 03/16/1993 | US5194823 Modulation means for an rf power amplifier |
| 03/16/1993 | US5194822 Automatic gain control method and device for a variable gain amplifier and application thereof to controlling the gain of a tuner, in particular for a videocommunication network |
| 03/16/1993 | US5194821 High efficiency power audio amplifiers comprising two amplifier with a single feed |
| 03/09/1993 | US5193223 Power control circuitry for a TDMA radio frequency transmitter |
| 03/09/1993 | US5192919 Transmitter having a temperature adjusted power amplifier |
| 03/09/1993 | US5192917 Circuit and method for detecting an amplitude and offset deviation of two sinusoidal signals |
| 03/03/1993 | EP0530072A1 Method and device for control and regulation |
| 03/03/1993 | EP0529158A1 Controlling sound dosage |
| 03/03/1993 | EP0529119A1 Monolithic integrated amplifier with digital gain control |
| 03/02/1993 | US5191620 Method for controlling volume level of sound for a display |
| 03/02/1993 | US5191338 Wideband transmission-mode FET linearizer |
| 02/24/1993 | EP0528689A2 Detector |
| 02/24/1993 | EP0528413A2 Gain control circuit and semiconductor device |
| 02/24/1993 | EP0528404A2 Audio signal reproducing device |
| 02/24/1993 | EP0527998A1 A method and a device for controlling a radio transmitter. |
| 02/24/1993 | EP0484476A4 Digital automatic gain control |
| 02/24/1993 | CA2076475A1 Control and regulation process and device |
| 02/23/1993 | US5189705 Audio equipment |
| 02/23/1993 | US5189347 Video circuit for driving a cathode ray tube |
| 02/18/1993 | WO1993003551A1 Method and apparatus for prevention of squelch chatter |
| 02/18/1993 | DE4127070A1 Noise suppression system for car radio - has circuit to identify pulse transients amplitude frequency and intensity disturbances and controls transmission to output |
| 02/17/1993 | EP0527595A2 Soliton optical fiber communication system |
| 02/16/1993 | US5187811 Error detection |
| 02/16/1993 | US5187809 Dual mode automatic gain control |
| 02/10/1993 | EP0527029A2 Power control circuit and a method of controlling a power amplifier |
| 02/10/1993 | EP0526662A1 Circuit for sensing pulse-like noise in am receiver |
| 02/04/1993 | WO1993002519A1 Transition generating between on and off states of a radio frequency transmitter |
| 02/03/1993 | EP0526241A2 Linear compensating circuit |
| 02/03/1993 | EP0526146A1 AC-DC decoupling circuit for audio signals and used in an integrated circuit |
| 02/03/1993 | EP0526028A2 Correction circuit for a floating-point amplifier |
| 02/03/1993 | EP0525962A2 Cellular telephone with transmitter power level control |
| 02/02/1993 | US5184349 Amplitude control of a burst signal in a receiver |
| 02/02/1993 | US5184088 Controlled-gain transistor amplifier without D-C shift or signal phase reversal in load current |
| 01/28/1993 | DE4124663A1 Pilot signal controlled HF amplifier for coaxial cable network carrying TV and audio broadcast signals - has control voltage generator, adjusting first to medium amplification on slow pilot signal failure |
| 01/27/1993 | EP0524806A1 Control circuitry for an RF signal amplifier |
| 01/27/1993 | EP0524547A2 Controllable amplifier circuit |
| 01/27/1993 | EP0524294A1 Amplification circuit with exponential gain control. |
| 01/26/1993 | US5182527 Power amplifying apparatus for wireless transmitter |
| 01/26/1993 | CA1313228C2 Frequency converter |
| 01/23/1993 | WO1993002505A1 Power control circuitry for a tdma radio frequency transmitter |
| 01/21/1993 | WO1993001655A1 Dynamic limiting circuit |
| 01/21/1993 | DE4218166A1 Automatische lautstaerkesteuervorrichtung Automatic lautstaerkesteuervorrichtung |
| 01/21/1993 | DE4123683A1 Power switch=on noise suppression circuit for headphones - uses voltage divider connected across each loudspeaker for coupling to three-pole headphone plug |
| 01/21/1993 | CA2112909A1 Dynamic limiting circuit |
| 01/20/1993 | EP0524008A1 Transmitter with nonlinearity correction circuits |
| 01/20/1993 | EP0523718A2 Output level control circuit for use in RF transmitter |
| 01/19/1993 | US5180988 Resistorless trim amplifier using MOS devices for feedback elements |
| 01/14/1993 | DE4122004A1 Time-variable adjusting magnitude transmission e.g. for car radio - transmitting magnitude as amplitude change of stereo pilot tone and correlating on reception |
| 01/13/1993 | EP0522578A2 Noise removing circuit |
| 01/13/1993 | EP0522325A2 Control unit for a VHF-receiver with several antennae |
| 01/12/1993 | US5179353 Power control circuit used for both analog/digital dual mode |
| 01/07/1993 | EP0521653A2 Gain control amplifier |
| 01/07/1993 | EP0521546A1 Controller for adjusting a control signal of an electronic apparatus |
| 01/07/1993 | DE4121196A1 Vol. setting control for telephone subscriber's appts. - uses call tone generator providing different tone signal during setting procedure |
| 01/05/1993 | US5177801 Cross fader for editing audio signals |