| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
|---|
| 05/27/2010 | WO2010059281A1 Logarithmic compression systems and methods for hearing amplification |
| 05/27/2010 | US20100127779 Method and system for variable-gain amplifier |
| 05/26/2010 | CN1714505B Method, system and device for providing linear decibel gain control in radio frequency driver amplifier |
| 05/13/2010 | US20100121635 Enhancing the Intelligibility of Received Speech in a Noisy Environment |
| 05/13/2010 | US20100119081 Electroacoustical transducing with low frequency augmenting devices |
| 05/12/2010 | EP2183850A1 Variable automatic limit control (alc) threshold for any desired compression curve |
| 05/11/2010 | US7715574 Audio apparatus for vessel |
| 05/11/2010 | US7715573 Audio bandwidth expansion |
| 05/06/2010 | WO2010051354A1 System and method for digital signal processing |
| 05/05/2010 | EP1415393B1 Method for processing an input signal for producing an output signal and an application of said method in hearing aids and devices |
| 05/05/2010 | CN1739236B Gain variable voltage/current conversion circuit and filter circuit using the same |
| 04/27/2010 | US7706552 Sound signal processing apparatus and sound signal processing method |
| 04/27/2010 | US7706545 Systems and methods for protection of audio amplifier circuits |
| 04/22/2010 | WO2010044439A1 Audio signal adjustment device and audio signal adjustment method |
| 04/22/2010 | US20100097145 Feedback controlled power limiting for signal amplifiers |
| 04/20/2010 | US7702117 Method for sound adjustment of a plurality of audio sources and adjusting device |
| 04/14/2010 | CN101694987A Loudness control system and control method thereof |
| 04/01/2010 | WO2010034589A1 Audio amplifier having load adjustment and method for the load adjustment of the audio amplifier |
| 04/01/2010 | CA2725150A1 Audio amplifier having load adjustment and method for the load adjustment of the audio amplifier |
| 03/16/2010 | USRE41164 Impedance blocking filter circuit |
| 03/09/2010 | US7676047 Electroacoustical transducing with low frequency augmenting devices |
| 03/02/2010 | US7672470 Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor |
| 03/02/2010 | US7672464 Locating and correcting undesirable effects in signals that represent time-based media |
| 03/02/2010 | US7672462 Method and system for acoustic shock protection |
| 02/16/2010 | US7664201 Digital automatic gain control |
| 02/10/2010 | EP2151920A1 A method and an apparatus for processing an audio signal |
| 02/03/2010 | EP2149985A1 An apparatus for processing an audio signal and method thereof |
| 01/27/2010 | EP2147568A1 A method and an apparatus for damping a sonic signal |
| 01/27/2010 | CN101635561A Audio play device and volume control method |
| 01/21/2010 | WO2010008313A1 Method of the automatic sound level control in a specified range |
| 01/20/2010 | CN101632222A Automatic gain control circuit, system including such circuit and method for atuomatic gain control |
| 01/20/2010 | CN100583655C Power limit device and digital radio transmitter using the same |
| 01/19/2010 | US7650002 Digital compressor for multi-channel audio system |
| 01/14/2010 | WO2010005034A1 Acoustic processing device |
| 01/13/2010 | EP2144367A2 Automatic gain control for a wireless receiver |
| 12/30/2009 | WO2009111500A3 System and method of reducing power consumption for audio playback |
| 12/30/2009 | EP2139264A1 Acoustic processing system and method for electronic device and mobile telephone terminal |
| 12/16/2009 | CN101606316A Hierarchical control path with constraints for audio dynamics processing |
| 12/09/2009 | CN101599747A Volume control apparatus and method |
| 12/09/2009 | CN100568969C Reversible wavelet transform and embedded codestream manipulation method |
| 12/08/2009 | US7630887 Enhancing the intelligibility of received speech in a noisy environment |
| 12/08/2009 | US7630507 Binaural compression system |
| 11/11/2009 | CN100559725C Improvements relating to polyphase receivers |
| 11/10/2009 | USRE40960 Switched signal processing circuit |
| 11/10/2009 | US7617109 Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 10/27/2009 | US7609840 System and method for hierarchical audio conflict control |
| 10/20/2009 | US7606378 Radio distortion processing |
| 10/15/2009 | WO2009125840A1 Audio signal processing device and audio signal processing method |
| 10/07/2009 | EP1719243B1 Radio frequency low noise amplifier with automatic gain control |
| 10/06/2009 | US7599504 Apparatus and method for adjusting sound volume for televisions and other audio systems |
| 10/06/2009 | US7599503 Audio output level setting method and device |
| 10/01/2009 | WO2009120387A1 Method and apparatus for scaling signals to prevent amplitude clipping |
| 10/01/2009 | US20090245539 User adjustable volume control that accommodates hearing |
| 09/29/2009 | US7596232 Apparatus and method for adjusting sound volume for televisions and other audio systems |
| 09/15/2009 | US7590251 Clip detection in PWM amplifier |
| 09/09/2009 | CN100539406C Audio pre-amp and mid-band compressor circuit |
| 09/03/2009 | DE102005061000B4 Signalverarbeitung für Hörgeräte mit mehreren Kompressionsalgorithmen Signal processing for hearing aids with multiple compression algorithms |
| 09/01/2009 | US7584009 Multi-chip PWM synchronization and communication |
| 08/25/2009 | US7580531 Dynamic range reducing volume control |
| 08/19/2009 | CN101512898A Volume control circuits for use in electronic devices and related methods and electronic devices |
| 08/05/2009 | CN101501988A Audio-peak limiting in slow and fast stages |
| 08/05/2009 | CN100525083C Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 07/30/2009 | US20090190699 Gain control method and apparatus |
| 07/29/2009 | EP2082480A2 Audio dynamics processing using a reset |
| 07/22/2009 | CN100517961C Sound-volume regulating device and method |
| 07/15/2009 | CN100514853C Volume and compression control in movie theaters |
| 07/08/2009 | EP2076961A1 Automatic gain control circuit, system including such circuit and method for automatic gain control |
| 07/08/2009 | CN100511984C Wave damping protecting device of microphone |
| 07/07/2009 | US7558391 Compander architecture and methods |
| 06/30/2009 | US7555132 Apparatus and method for adjusting sound volume for televisions and other audio systems |
| 06/30/2009 | CA2406754C Method and apparatus for noise reduction, particularly in hearing aids |
| 06/23/2009 | US7551745 Volume and compression control in movie theaters |
| 06/18/2009 | WO2009074945A1 Prevention of audio signal clipping |
| 06/17/2009 | EP2070191A2 Audio-peak limiting in slow and fast stages |
| 06/11/2009 | WO2009071640A1 Current amplifier |
| 05/26/2009 | US7539614 System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes |
| 05/20/2009 | DE19948172B4 Aussteuerungsregelung in einer Signalverarbeitungseinheit Aussteuerungsregelung in a signal processing unit |
| 05/13/2009 | EP2057736A1 Volume control circuits for use in electronic devices and related methods and electronic devices |
| 05/13/2009 | CN101432965A Audio gain control using specific-loudness-based auditory event detection |
| 05/12/2009 | US7532730 Audio dynamics processing control system |
| 05/12/2009 | US7532671 Gain control method and apparatus |
| 05/07/2009 | US20090116665 Compressing the Level of an Audio Signal |
| 05/07/2009 | US20090116664 Perceptually weighted digital audio level compression |
| 04/30/2009 | US20090110214 Controlled charging and use of power source |
| 04/22/2009 | CN100481722C System and method for enhancing delivered sound in acoustical virtual reality |
| 04/14/2009 | US7519189 Processing of an audio signal for presentation in a high noise environment |
| 04/14/2009 | US7519188 Electroacoustical transducing |
| 04/08/2009 | EP2044689A1 A method of limiting the maximum permitted sound volume in an earphone, and an earphone for carrying out the method |
| 04/08/2009 | CN100477511C System and method for adjusting output power of power amplifier |
| 04/02/2009 | US20090086996 System and method for processing audio signal |
| 04/01/2009 | CN100474763C Power amplifier clipping circuit for minimized output of distortion |
| 03/18/2009 | CN100471055C AGC circuit and gain control method |
| 03/12/2009 | US20090067641 User interface for mixing sounds in a media application |
| 03/11/2009 | CN101383594A RF variable gain amplifier |
| 03/05/2009 | WO2009029916A1 Systems and methods for controlling audio volume in the processor of a high definition audio codec |
| 03/05/2009 | WO2009029782A1 Variable automatic limit control (alc) threshold for any desired compression curve |
| 03/04/2009 | CN101378250A Audio-signal processing apparatus and method |
| 02/25/2009 | CN101373957A Digital gain control method and circuit |
| 02/19/2009 | US20090046873 Methods and systems for determining audio loudness levels in programming |
| 02/17/2009 | US7492955 Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |