| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
|---|
| 03/20/1979 | US4145664 Audio signal compression and expansion system |
| 01/23/1979 | US4136314 Adaptive signal weighting system |
| 10/31/1978 | US4123711 Synchronized compressor and expander voice processing system for radio telephone |
| 10/10/1978 | US4119922 Circuit for automatic volume compression or volume expansion |
| 09/19/1978 | US4115741 Fast attack automatic gain control circuit |
| 09/05/1978 | US4112387 Bias circuit |
| 08/29/1978 | US4110699 Adaptive audio compressor |
| 08/22/1978 | US4109165 Rms circuit |
| 08/15/1978 | CA1036706A1 Signal processing system and method |
| 07/25/1978 | US4103239 Compressor for both speech and carrier signals |
| 07/18/1978 | US4101849 Adaptive filter |
| 07/18/1978 | US4101841 Gain control circuit |
| 07/04/1978 | US4099134 Amplifier with controllable transmission factor and switchable control characteristic |
| 06/20/1978 | US4096382 Photo-current log-compression circuit |
| 05/23/1978 | US4091414 Forward locking infrared video processing system having a scene dynamic range expander |
| 05/23/1978 | US4091295 Transistor circuit |
| 05/16/1978 | US4090150 High dynamic phase-accurate alternating voltage amplifier operating as a logarithmic amplifier for maintaining amplitude information |
| 04/11/1978 | US4084129 Voltage controlled variable gain circuit |
| 02/07/1978 | US4072914 Compression and expansion system with enlarged dynamic range |
| 01/31/1978 | US4071695 Speech signal amplitude equalizer |
| 10/18/1977 | US4054849 Signal compression/expansion apparatus |
| 08/23/1977 | US4044205 Reception techniques for improving intelligibility of an audio frequency signal |
| 08/02/1977 | US4039949 Pulse code modulation with dynamic range limiting |
| 07/19/1977 | US4037226 Pulse code modulation compressor |
| 07/12/1977 | US4035739 Signal dynamic compression and expansion circuits |
| 05/24/1977 | US4025723 Real time amplitude control of electrical waves |
| 01/04/1977 | US4001708 Code-controlled ringer attachment for telephones including a-peak-to-peak gain controlled amplifier |
| 12/21/1976 | US3999060 Device for receiver for optical signals |
| 12/14/1976 | US3997914 Analog encoder decoder circuit |
| 11/30/1976 | US3995217 Method and apparatus for suppressing background noise in a digital telephone system |
| 11/09/1976 | US3991283 Multichannel record disc reproducing system |
| 10/26/1976 | US3988694 Automatic level controller |
| 10/12/1976 | US3986049 Limiter amplifier |
| 10/12/1976 | US3986048 Non-linear amplifier |
| 08/31/1976 | US3978423 Dynamic expander |
| 08/31/1976 | US3978409 Signal compressors and expanders |
| 08/24/1976 | US3977023 Tape recorder |
| 08/10/1976 | US3974400 Limiter circuit |
| 07/13/1976 | US3969680 Automatic dynamic compander system |
| 06/22/1976 | US3965436 Compressor and expander circuits for compander system |
| 05/25/1976 | US3959732 Signal processing system and method |
| 03/23/1976 | US3946249 Signal control circuit |
| 01/27/1976 | US3935478 Non-linear amplifier |