| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
|---|
| 06/19/1996 | EP0716783A1 Amplifier stage with a db-linear output voltage |
| 06/18/1996 | US5528191 Logarithmic amplifier having improved speed response |
| 06/12/1996 | EP0716512A1 Radio receiver |
| 06/11/1996 | US5525924 Log conversion circuit |
| 06/04/1996 | US5524060 Visuasl dynamics management for audio instrument |
| 06/04/1996 | US5524055 Solid state circuit for emulating tube compression effect |
| 05/30/1996 | DE4441323A1 Signals transmission method e.g. for mobile radio network orthogonal FDM signals |
| 05/28/1996 | US5521542 Logarithmic amplifier circuit using triple-tail cells |
| 05/08/1996 | EP0711034A1 Generating means for transfer functions defined by intervals |
| 05/07/1996 | US5515260 Current-voltage conversion circuit, current compressing and extension circuit, automatic exposure control system, and automatic exposure control system with built-in sensor |
| 04/23/1996 | US5510752 Low input signal bandwidth compressor and amplifier control circuit |
| 04/11/1996 | WO1996010796A1 Temperature compensated logarithmic convertor |
| 04/11/1996 | CA2201292A1 Temperature compensated logarithmic converter |
| 04/10/1996 | EP0706261A1 Detector cell for logarithmic amplifiers |
| 04/09/1996 | US5507022 Electric field level detecting apparatus |
| 04/09/1996 | US5506537 Logarithmic amplifying circuit based on the bias-offset technique |
| 04/03/1996 | CN1119801A Power amplifier with clipping level control |
| 04/02/1996 | CA1338217C Video noise reduction circuit |
| 03/28/1996 | DE19534943A1 Embedded wavelet type data compression device e.g. for facsimile transmission of documents |
| 03/27/1996 | CN1119365A Cicuit of voltage limiter |
| 03/05/1996 | US5497403 Feedback clamping circuit |
| 02/27/1996 | US5495529 Digital sound level control apparatus |
| 02/14/1996 | EP0696741A2 Bipolar cascadable circuit for signal limiting and field strength detection |
| 02/07/1996 | EP0381764B1 Analog operation circuit |
| 02/07/1996 | CN1116464A Method and apparatus for detecting an input signal level |
| 02/06/1996 | US5489868 Detector cell for logarithmic amplifiers |
| 01/30/1996 | US5488668 For use in a hearing aid |
| 01/30/1996 | CA2023851C Amplifier arrangement for producing a controllable non-linear transfer characteristic useful for improving the contrast of an image |
| 01/25/1996 | DE4444899C1 Amplitude-dependent attenuation system for television signals |
| 01/17/1996 | EP0692869A2 Power amplifier with clipping level control |
| 01/10/1996 | CN1114849A Transcoding and transdecoding unit, and method for adjusting the output thereof |
| 01/09/1996 | US5483600 Wave dependent compressor |
| 01/09/1996 | US5483293 Output control circuit capable of carrying out a wide variety of fade operations |
| 01/02/1996 | US5481218 Logarithmic converter |
| 12/12/1995 | US5475328 Logarithmic intermediate frequency amplifier circuit operable on low voltage |
| 12/06/1995 | EP0685130A1 Digital audio limiter. |
| 12/06/1995 | CN1113057A Companding of voice signal for simultaneous voice and data transmission |
| 12/05/1995 | US5473279 Integrated compander amplifier circuit with digitally controlled gain |
| 11/28/1995 | US5471651 Method and system for compressing the dynamic range of audio signals |
| 11/28/1995 | US5471166 Logarithmic amplifying circuit using quadritail cells |
| 11/22/1995 | EP0524294B1 Amplification circuit with exponential gain control |
| 11/14/1995 | US5467093 Logarithmic detector |
| 11/14/1995 | US5467046 Logarithmic intermediate-frequency amplifier |
| 11/08/1995 | CN1111416A Solid state tube compression circuit |
| 11/01/1995 | CN1111042A Multi-stage solid stage amplifier that emulates tube distortion |
| 10/31/1995 | US5463695 Peak accelerated compressor |
| 10/18/1995 | EP0677931A2 Moise shaping of differntially encoded and compressed audiosignals |
| 09/19/1995 | US5451895 Wideband amplifier with logarithmic output characteristic |
| 09/06/1995 | EP0670089A1 Transcoding and transdecoding unit, and method for adjusting the output thereof |
| 09/05/1995 | CA2054173C Digital radio receiver having amplitude limiter and logarithmic detector |
| 08/30/1995 | EP0669710A2 Variable gain amplifying circuit |
| 08/22/1995 | US5444788 Audio compressor combining feedback and feedfoward sidechain processing |
| 08/22/1995 | US5444785 Echo attaching circuit and audio device using the same |
| 08/16/1995 | CN1106924A Logarithmic detector |
| 08/02/1995 | EP0665639A1 Synchronous logarithmic amplifier |
| 07/19/1995 | EP0663720A2 Solid state tube compression circuit |
| 07/18/1995 | US5434536 Semiconductor emulation of vacuum tubes |
| 07/12/1995 | EP0662752A2 Multi-stage solid state amplifier that emulates tube distortion |
| 07/11/1995 | US5432389 Gain stage circuit with automatic level control |
| 07/05/1995 | EP0661804A2 Volume controller |
| 06/07/1995 | CN1028826C Method and device for processing analog signal |
| 05/18/1995 | WO1995013655A1 Method and apparatus for detecting an input signal level |
| 05/10/1995 | EP0651906A1 Semiconductor-emulation of vacuum tubes |
| 05/10/1995 | CN1028395C Regulated amplifier circuit |
| 05/09/1995 | US5414313 Dual-mode logarithmic amplifier having cascaded stages |
| 04/19/1995 | EP0591441A4 An improved multiband programmable compression system. |
| 04/04/1995 | US5404315 Automatic sound gain control device and a sound recording/reproducing device including arithmetic processor conducting a non-linear conversion |
| 03/30/1995 | WO1995008877A1 Transcoding and transdecoding unit, and method for adjusting the output thereof |
| 03/16/1995 | WO1995007574A1 Amplifier stage with a db-linear output voltage |
| 03/07/1995 | US5396562 Signal processing circuit for audio apparatus |
| 03/01/1995 | EP0641071A1 Logarithmic detector |
| 02/28/1995 | US5394475 Method for shifting the frequency of signals |
| 02/28/1995 | US5394474 Echo attaching circuit and audio device using the same |
| 02/14/1995 | US5389893 Circuit for a controllable amplifier |
| 02/08/1995 | CN1027613C Circuit arrangement for controlling volume range of voice terminal |
| 02/07/1995 | US5387877 Voltage controlled attenuator for speakerphones |
| 02/01/1995 | EP0636288A1 Demodulating logarithmic amplifier |
| 01/31/1995 | US5386199 Compressor capable of compressing large input signal with minimal distortion |
| 01/17/1995 | US5382849 Circuit configuration for signal limitation and field intensity detection |
| 01/10/1995 | US5381106 Clipper circuitry suitable for signals with fractional-volt amplitudes |
| 01/03/1995 | CA2017210C Methods and apparatus for the recording and reproduction of sound signals |
| 12/27/1994 | US5377272 Switched signal processing circuit |
| 12/21/1994 | EP0630131A1 Companding of voice signal for simultaneous voice and data transmission |
| 12/21/1994 | EP0630105A2 Voltage controlled attenuator for speakerphones |
| 12/20/1994 | US5375255 Radio receiver comprising analog dynamic compression and digital expansion |
| 12/15/1994 | DE4320561C1 IF amplifier for a satellite receiver |
| 12/15/1994 | CA2125509A1 Companding of voice signal for simultaneous voice and data transmission |
| 10/25/1994 | US5359653 Circuit arrangement for controlling the volume range of a voice terminal |
| 10/19/1994 | EP0619928A1 Simultaneous transmission of audio and data signals |
| 10/18/1994 | US5357209 Limiting amplifier |
| 10/18/1994 | CA1332626C Noise reduction |
| 10/13/1994 | DE4311943A1 Circuit arrangement for limiting the amplitude of a useful signal |
| 09/06/1994 | US5345185 Logarithmic amplifier gain stage |
| 09/01/1994 | WO1994019883A1 Digital audio limiter |
| 09/01/1994 | CA2154883A1 Digital audio limiter |
| 08/31/1994 | EP0613243A1 Anti-logarithmic converter with temperature compensation |
| 08/27/1994 | CA2090531A1 Dual time constant audio compression system |
| 08/24/1994 | EP0612145A1 Cascadable circuit for limitation of signals and detection of fieldstrength |
| 08/17/1994 | EP0401297B1 Improved low voltage programmable compressor |
| 08/16/1994 | US5338985 Low voltage, simplified and temperature compensated logarithmic detector |