| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
|---|
| 04/10/1986 | CN85107350A Video signal emphasis circuit |
| 04/09/1986 | EP0176888A1 Video signal emphasis circuit |
| 04/08/1986 | US4581587 Solid state electrical musical instrument amplifier |
| 03/26/1986 | EP0175275A2 Non-linear signal processing apparatus |
| 02/19/1986 | EP0171524A2 Device for controlling the level and the volume in an LF amplifier, and method for realising this device |
| 01/21/1986 | CA1199588A1 Signal conditioning system |
| 12/31/1985 | US4562591 Digital dynamic range converter |
| 12/17/1985 | CA1198178A1 All npn vca |
| 12/03/1985 | CA1197560A1 Non-reactive limiter |
| 11/12/1985 | US4553105 Multistage linear amplifier for a wide range of input signal levels |
| 11/12/1985 | CA1196726A1 Method of and apparatus for converting linearly coded digital signals into non linearly coded digital signals |
| 11/06/1985 | EP0160338A2 A receiver for amplitude modulated signal |
| 10/29/1985 | US4550426 Method and means of detecting the presence of a signal representing voice and of compressing the level of the signal |
| 10/15/1985 | US4547741 Noise reduction circuit with a main signal path and auxiliary signal path having a high pass filter characteristic |
| 10/15/1985 | CA1195387A1 Noise reduction circuit |
| 10/08/1985 | US4546321 Non-linear amplifier systems for repetitive signals |
| 10/08/1985 | US4546274 Non-linear integration circuit |
| 10/01/1985 | US4544916 Digital code translator |
| 08/27/1985 | US4538297 Aurally sensitized flat frequency response noise reduction compansion system |
| 08/13/1985 | US4535471 Compression/expansion device |
| 07/23/1985 | US4531234 Optimizing antenna interface for automobile radio receivers |
| 07/23/1985 | US4531069 For receiving AC input signals/providing an AC output signal |
| 07/01/1985 | EP0131033A4 Method and means for processing speech. |
| 06/26/1985 | EP0146355A2 Logarithmically linearly controlled variable gain amplifier |
| 06/25/1985 | US4525857 Crossover network |
| 06/20/1985 | WO1985002529A1 Data compression system and method for processing digital sample signals |
| 06/19/1985 | EP0145568A2 Broad-band amplifiying and limiting device |
| 06/18/1985 | CA1188996A1 Circuit arrangements for modifying dynamic range |
| 06/04/1985 | US4521738 Gain control circuit |
| 05/15/1985 | EP0141424A2 Audio signal transmission system having noise reduction means |
| 05/14/1985 | US4517534 Circuit detector and noise reduction network with circuit detector |
| 04/30/1985 | CA1186407A1 Video disc player with selectively enabled audio signal expander circuitry |
| 04/23/1985 | US4513253 Electronic amplifier having a transmission factor that is variable by means of a controllable voltage, specifically an expander |
| 04/23/1985 | US4513242 Electronic impedance device for providing a variable impedance |
| 03/26/1985 | US4507615 Non-linear amplifier systems |
| 02/19/1985 | US4500869 Method for conversion of linearly encoded into non-linearly encoded digital signals |
| 02/19/1985 | US4500842 Signal processing apparatus |
| 02/05/1985 | US4498060 Circuit arrangements for modifying dynamic range using series arranged bi-linear circuits |
| 01/22/1985 | US4495643 Audio peak limiter using Hilbert transforms |
| 01/16/1985 | EP0131033A1 Method and means for processing speech |
| 01/09/1985 | EP0130426A1 Transmission system for a frequency-modulated audio carrier, especially a video recorder |
| 01/08/1985 | US4492930 Automatic gain control system |
| 12/25/1984 | US4490687 Electronic amplifier |
| 12/12/1984 | EP0127792A2 Receiver |
| 11/28/1984 | EP0126337A2 Switched-capacitor AGC system |
| 11/27/1984 | US4485483 FM Stereophonic system incorporating companding of difference signal |
| 11/27/1984 | US4485350 Variable electronic impedance circuit |
| 11/20/1984 | CA1178210A1 Noise reduction circuit |
| 11/13/1984 | CA1177759A1 Circuit arrangements for modifying dynamic range |
| 09/27/1984 | WO1984003807A1 Fm stereophonic radio broadcasting system having s channel companding |
| 09/12/1984 | EP0118144A1 Digital dynamic range converter |
| 09/11/1984 | US4471324 All NPN variably controlled amplifier |
| 09/11/1984 | US4471318 Circuit for noise reduction particularly useful with signal recording/reproducing apparatus |
| 09/11/1984 | CA1174175A1 Compander system circuit |
| 09/05/1984 | EP0117654A1 Multistage amplifier |
| 08/21/1984 | US4467318 Process for converting linear coded PCM words into non-linear coded PCM words and vice versa |
| 08/21/1984 | US4467315 Digital compandor having nonlinear companding characteristics |
| 08/21/1984 | US4467287 Signal expander |
| 08/14/1984 | US4466119 Audio loudness control system |
| 08/14/1984 | US4465981 Adaptive control signal filter for audio signal expander |
| 08/14/1984 | US4465978 Signal conditioning circuit |
| 08/14/1984 | CA1172710A1 Level detecting circuit |
| 08/14/1984 | CA1172574A1 Gain control circuit |
| 08/07/1984 | US4464635 Non-reactive limiter |
| 07/31/1984 | CA1171921A1 Level detecting circuit |
| 07/19/1984 | WO1984002793A1 Method and means for processing speech |
| 07/17/1984 | CA1171144A1 Gain control circuit |
| 07/10/1984 | US4459557 Compressor limiter for audio signal processing |
| 06/26/1984 | US4457014 Signal transfer and system utilizing transmission lines |
| 06/05/1984 | US4453091 Level detecting circuit |
| 05/30/1984 | EP0109430A1 Meter drive circuit |
| 05/29/1984 | US4451746 Non-linear emphasis circuit |
| 04/10/1984 | US4442549 Meter drive circuit |
| 04/03/1984 | US4441041 Circuit arrangement for generating a direct control voltage which is dependent on an alternating voltage |
| 04/03/1984 | CA1164806A1 Signal expander/compressor with adaptive control circuit |
| 04/03/1984 | CA1164805A1 Signal expander |
| 03/27/1984 | US4439742 Circuit for simulating vacuum tube compression in transistor amplifiers |
| 03/27/1984 | CA1164350A1 Compander system |
| 03/20/1984 | US4438410 Variable gain amplifier |
| 03/14/1984 | EP0102608A2 Expansion circuit for digital signals |
| 02/28/1984 | US4434404 A.C. Coupled video amplifier with fast pulse recovery |
| 02/21/1984 | US4433254 Level detecting circuit |
| 01/31/1984 | US4429416 Multistage cascade/cascode limiting IF amplifier and meter circuit |
| 01/24/1984 | US4427950 Noise reduction circuit |
| 12/28/1983 | EP0096719A1 Non-linear amplifier systems. |
| 12/20/1983 | US4422051 Gain control circuit |
| 12/20/1983 | US4422049 Gain control circuit |
| 12/08/1983 | WO1983004354A1 Meter drive circuit |
| 12/06/1983 | CA1158172A1 Noise reduction circuit |
| 12/06/1983 | CA1158171A1 Circuit for noise reduction particularly useful with signal recording/reproducing apparatus |
| 11/22/1983 | CA1157536A1 Gain control systems |
| 11/15/1983 | US4415866 Circuit for dynamic compression and/or expansion |
| 10/26/1983 | EP0091996A1 An electric circuit for detecting the maximum value of a plurality of input currents and a signal processing circuit employing it. |
| 09/27/1983 | US4406989 Automatic level control circuit |
| 09/06/1983 | US4403199 Gain control systems |
| 09/06/1983 | CA1153315A1 Signal compression and expansion system |
| 08/23/1983 | US4400583 Complete audio processing system |
| 08/09/1983 | US4398158 Dynamic range expander |
| 08/09/1983 | US4398157 Signal expander/compressor with adaptive control circuit |
| 08/02/1983 | US4396879 Coupled series and parallel resonant circuit, in particular for electric fence apparatus |