| Patents for H03G 1 - Details of arrangements for controlling amplification (4,021) |
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| 06/21/1989 | CN1004600B Amplifier circuit adapted to advice filter circuits |
| 06/20/1989 | US4841254 CMOS precision gain amplifier |
| 06/13/1989 | US4839610 System for automatically controlling the gain-bandwidth product of operational amplifiers |
| 06/08/1989 | DE3740546A1 Circuit arrangement for remotely controllable change of the operating parameters of a signal generator |
| 06/07/1989 | CN1033339A Bandwidth limiting circuit with variable bandwidth |
| 06/01/1989 | DE3731300A1 Method for optimising the transient behaviour of a multistage amplifier with negative feedback, and a multistage amplifier with negative feedback |
| 05/30/1989 | US4835490 Circuit for automatically controlling the gain-bandwidth product of operational amplifiers |
| 05/03/1989 | EP0314227A2 Wideband single-ended voltage-to current converter and gain-control circuit |
| 05/03/1989 | EP0313914A1 Circuit comprising an input amplifier connected to an opto-electrical transducer |
| 04/25/1989 | US4825176 Control amplifier |
| 04/25/1989 | US4825173 High gain, programmable differential amplifier circuitry |
| 04/18/1989 | US4823093 Dynamically biased voltage controlled element |
| 04/04/1989 | US4818951 Gain control or multiplier circuits |
| 03/28/1989 | US4816772 Wide range linear automatic gain control amplifier |
| 03/22/1989 | EP0308293A1 Controlled output power device for a class-C amplifier |
| 03/22/1989 | EP0307641A1 Noise reduction circuitry |
| 03/21/1989 | US4814724 Gain control circuit of current mirror circuit type |
| 03/16/1989 | DE3728616A1 Control circuit for setting predetermined resistance values and resistance value ratios in photoresistors (photoconductors, photoconductive cells) |
| 02/28/1989 | US4808810 Preamplifier for an optical receiver |
| 02/21/1989 | US4806876 High frequency amplifier circuit |
| 01/24/1989 | CA1249356A1 Sensor communication system |
| 01/10/1989 | US4797632 Variable gain amplifier circuit and its use in an automatic gain control arrangement |
| 12/28/1988 | EP0296318A2 CMOS precision gain amplifier |
| 12/27/1988 | US4794343 Method and apparatus for calibrating and equalizing a multi-channel automatic gain control amplifier |
| 12/13/1988 | US4791385 Voltage controlled amplifier for symmetrical electrical signals |
| 12/08/1988 | DE3817156A1 Verfahren und geraet zur bestimmung von wechselspannungs(ac)-kalibrierfehlern und geraet mit einer einrichtung zur lieferung von wechselspannungs(ac)-kalibrierfehlern Method and apparatus for the determination of alternating voltage (ac) -kalibrierfehlern and geraet with a device for delivery of alternating voltage (ac) -kalibrierfehlern |
| 12/07/1988 | CN88103246A Method of and apparatus for determining ac calibration errors and apparatus using device with ac calibration errors |
| 12/06/1988 | US4790019 Remote hearing aid volume control |
| 12/01/1988 | DE3716655A1 Device for reproducing data |
| 11/23/1988 | EP0292105A2 Audio amplifier protection circuit |
| 11/22/1988 | US4786879 Attenuator circuit employing bootstrapping |
| 11/09/1988 | EP0290080A2 Television signal amplifying circuitry |
| 11/09/1988 | EP0289807A2 Method for the temperature compensation of electric networks, and arrangements therefor |
| 10/19/1988 | EP0287063A2 Circuit for automatically controlling the gain-bandwidth product of operational amplifiers |
| 08/23/1988 | US4766395 Circuits to provide desired conductance characteristics using a FET |
| 08/09/1988 | US4763082 Selectable tuner preamplifier |
| 08/09/1988 | US4763024 Gain control cell |
| 07/27/1988 | EP0276130A2 Electrical signal mixer circuits |
| 07/19/1988 | US4758910 Method of controlling a tape deck display |
| 07/19/1988 | US4758797 Amplifier with compressor and expander function for ground symmetrical electrical signals |
| 07/12/1988 | US4757276 Signal-processing circuit having a field-effect MOSFET and bipolar transistors |
| 06/30/1988 | DE3642984A1 Circuit for volume compression and/or expansion of a signal |
| 06/29/1988 | EP0272702A2 System for automatically controlling the gain-bandwidth product of operational amplifiers |
| 06/28/1988 | US4754232 Amplification gain adjusting circuit |
| 06/22/1988 | EP0272106A2 Constant phase gain control circuit |
| 06/22/1988 | EP0271953A2 Gain-controlled amplifier |
| 06/22/1988 | EP0271938A1 Automatic gain-controlled amplifier circuit |
| 06/07/1988 | US4749957 Semiconductor transconductor circuits |
| 05/31/1988 | US4748422 Amplifier circuit suitable for use as an active filter circuit |
| 05/24/1988 | US4746876 Attenuator control arrangements |
| 05/19/1988 | DE3638493A1 Remote control by wire for d.c.-controlled regulating units |
| 05/03/1988 | US4742312 Power limiting audio amplifier temperature protection circuit |
| 04/20/1988 | EP0264171A2 Gain selectable amplifier with resonance compensation |
| 04/19/1988 | US4739283 Variable transient response control for linear integrated-circuit high-frequency amplifiers |
| 04/19/1988 | US4739196 Wide range linear inpedance controller using junction field effect transistors |
| 04/12/1988 | US4737734 Controlling a semi-conductor resistance defining component |
| 04/06/1988 | EP0262728A1 Preamplifier for an optical receiver |
| 04/05/1988 | US4736166 Attenuation circuit |
| 03/30/1988 | EP0261739A1 Control amplifier |
| 03/24/1988 | WO1988002198A1 Retrofit remote control apparatus |
| 03/15/1988 | US4731873 Squelch trigger circuit |
| 03/15/1988 | US4731588 Gain selectable amplifier with resonance compensation |
| 03/03/1988 | DE3628530A1 Circuit arrangement for volume control of broadcast receivers and antitheft protection in motor vehicles |
| 02/23/1988 | US4727335 Gain-controlled amplifier |
| 02/17/1988 | EP0255927A2 Switchable tuner-preamplifier |
| 02/09/1988 | US4724337 Automatic gain control detection circuit |
| 01/13/1988 | EP0252089A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier. |
| 01/12/1988 | CA1231386A1 Remote control system having symmetrical tone send/receive signalling circuits for radio communications |
| 01/07/1988 | EP0251530A2 Improvements relating to amplifier gain control circuit arrangements |
| 11/18/1987 | CN87102989A 中文键盘 Chinese Keyboard |
| 11/11/1987 | CN87100128A Amplifier circuit adapted to active filter circuits |
| 11/10/1987 | US4706294 Audio control device |
| 10/28/1987 | EP0242479A2 Precision remotely-switched attenuator |
| 09/22/1987 | US4695806 Precision remotely-switched attenuator |
| 09/17/1987 | DE3607688A1 Receiver (reception module) for an optical communications path |
| 09/09/1987 | EP0236076A2 Circuits for altering the dynamic range of audio signals |
| 08/19/1987 | EP0232699A2 An amplifier circuit suitable for use as an active filter circuit |
| 08/18/1987 | US4688000 Non biased push-pull amplifiers |
| 08/11/1987 | US4686707 Program identifier signal receiver |
| 06/30/1987 | US4677392 Cascaded internal impedance dependent amplifier with accurate variable gain control |
| 06/18/1987 | WO1987003755A1 Cascaded internal impedance dependent amplifier with accurate variable gain control |
| 06/18/1987 | WO1987003754A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier |
| 06/04/1987 | DE3542462A1 Arrangement for regulation of an operating value of a transmission magnitude between two limit values |
| 05/26/1987 | CA1222293A1 Automatic linear compression circuit |
| 05/06/1987 | EP0220403A1 Series network arrangement adjustable in stages |
| 04/29/1987 | EP0220043A2 Circuits to provide desired conductance characteristics using a fet |
| 04/28/1987 | US4661780 Differential stage particularly for active filters |
| 03/31/1987 | US4654881 Remote control system having symmetrical tone, send/receive signaling circuits for radio communications |
| 03/12/1987 | DE3530674A1 Sound reproduction system with remotely controlled tone setting |
| 03/11/1987 | EP0213562A2 Signal-processing circuit having a field-effect MOSFET and bipolar transistors |
| 03/04/1987 | EP0212105A2 Circuit arrangement to control the sound volume in a motor car in dependence upon the speed of it |
| 01/29/1987 | DE3527112A1 Hearing aid |
| 01/28/1987 | EP0210067A2 Controlling a semi-conductor resistance defining component |
| 01/06/1987 | US4634960 Automatic linear compression circuit |
| 01/02/1987 | DE3522416A1 Controllable broadband amplifier circuit |
| 12/16/1986 | US4629998 Variable gain equalizer with a mirror circuit having opposite phase relationship between input and output currents |
| 12/02/1986 | US4627098 Automatic gain control for a remote control system having symmetrical send/receive signaling circuits |
| 12/02/1986 | US4626818 Multilayer-alumina substrate, in organic glaze, conductor pattern and second inorganic glaze |
| 12/02/1986 | CA1214860A1 Remote control transmitter arrangement for one or more television devices |
| 11/26/1986 | EP0202650A2 Method of controlling a tape deck display |