| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
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| 03/14/2012 | DE202012002461U1 Hörgerät für altersbedingte oder ähnliche Hörschwäche Hearing aid for age-related hearing loss, or similar |
| 02/22/2012 | CN101185240B 用于音频信号增益控制的设备和方法 Apparatus and method for controlling the gain of the audio signal |
| 02/15/2012 | EP2418770A1 Automatic gain control |
| 02/14/2012 | US8116485 Adaptive gain control system |
| 02/01/2012 | CN102342020A Adjusting dynamic range for audio reproduction |
| 01/19/2012 | WO2012009572A1 A waveform shaping system to prevent electrical and mechanical saturation in loud speakers |
| 01/19/2012 | US20120014536 Mute control circuit and electronic device using same |
| 01/17/2012 | US8098742 Gain control method and apparatus |
| 01/04/2012 | EP2403138A1 A self powered audio compressor circuit |
| 01/03/2012 | US8090576 Enhancing the intelligibility of received speech in a noisy environment |
| 12/28/2011 | EP2076961B1 Automatic gain control circuit, system including such circuit and method for automatic gain control |
| 12/27/2011 | US8085953 Audio-signal time-axis expansion/compression method and device |
| 12/27/2011 | US8085943 Noise extractor system and method |
| 12/27/2011 | US8085941 System and method for dynamic sound delivery |
| 12/22/2011 | WO2011156997A1 Loudspeaker and method for playing audio sources |
| 12/14/2011 | EP2394360A2 Adjusting dynamic range for audio reproduction |
| 12/07/2011 | CN101160616B 用于产生、处置或解码数字比特流的处理方法 Used to generate, handle or dispose of decoding digital bit stream |
| 11/30/2011 | EP2391004A1 Systems and methods for controlling the volume output from a media presentation device |
| 11/23/2011 | CN102257728A Audio signal adjustment device and audio signal adjustment method |
| 11/16/2011 | CN102246230A Systems and methods for improving the intelligibility of speech in a noisy environment |
| 11/15/2011 | US8059832 Audio signal processing method and apparatus |
| 11/09/2011 | CN1918790B Radio frequency low noise amplifier with automatic gain control |
| 11/02/2011 | EP1699259B1 Audio output apparatus |
| 11/01/2011 | US8050412 Scaling adjustment to enhance stereo separation |
| 10/20/2011 | US20110255713 Automatic volume control for audio signals |
| 10/04/2011 | US8032385 Method for correcting metadata affecting the playback loudness of audio information |
| 09/28/2011 | EP2369858A2 Dynamic range compression using digital frequency warping |
| 09/28/2011 | EP2368243A1 Systems and methods for improving the intelligibility of speech in a noisy environment |
| 09/14/2011 | CN101383594B RF variable gain amplifier |
| 09/06/2011 | US8014534 Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| 08/30/2011 | US8010073 System and method for adjusting power amplifier output power in linear dB steps |
| 08/24/2011 | CN102165690A Audio amplifier having load adjustment and method for the load adjustment of the audio amplifier |
| 08/18/2011 | WO2011100155A1 System and method for non-destructively normalizing loudness of audio signals within portable devices |
| 08/18/2011 | DE102010022632A1 Method for adjusting curve of output signal level for output signal produced by hearing aid apparatus, involves increasing output signal level only in region of input signal level when maximum output signal level is not reached |
| 08/18/2011 | CA2787466A1 System and method for non-destructively normalizing loudness of audio signals within portable devices |
| 08/11/2011 | DE102010007047A1 Circuit for use in hearing aid for preventing residual hearing at high sound pressure level, controls input volume level of aid inversely proportional to frequency amplification, so that remaining auditory threshold is slightly exceeded |
| 08/04/2011 | DE102010006285A1 Motor vehicle audio system, has control unit connected with amplifier and detector for calculating amplified signal of sound detector with preset sound level of speakers and determining amplification factor according to preset sound level |
| 08/03/2011 | EP2352225A1 Audio signal adjustment device and audio signal adjustment method |
| 07/27/2011 | EP1616386B1 Volume and compression control in movie theaters |
| 07/27/2011 | CN101138152B Speech output control device and method |
| 07/19/2011 | US7983430 System for hierarchical audio conflict control |
| 07/14/2011 | WO2011085148A1 Compressor based dynamic bass enhancement with eq |
| 06/28/2011 | US7970153 Audio output apparatus |
| 06/15/2011 | EP2332252A1 Audio amplifier having load adjustment and method for the load adjustment of the audio amplifier |
| 06/15/2011 | CN1894855B System and method for detection of amplitude limit and modification of signal |
| 06/15/2011 | CN1627635B Signal compression/expansion device and mobile communication terminal |
| 05/25/2011 | CN1574616B Audio processing apparatus |
| 05/25/2011 | CN102077464A Acoustic processing device |
| 05/17/2011 | US7945058 Noise reduction system |
| 05/17/2011 | US7944321 Harmonic suppressing circuit |
| 05/11/2011 | CN102057567A Audio signal processing device and audio signal processing method |
| 04/28/2011 | WO2011048741A1 Multiband compressor |
| 04/28/2011 | WO2011048555A1 A method and a system for signal processing |
| 04/20/2011 | EP2312747A2 Distortion compensation |
| 04/19/2011 | US7929714 Integrated audio codec with silicon audio transducer |
| 04/14/2011 | WO2011044521A1 Adaptive dynamic range enhancement of audio recordings |
| 04/14/2011 | WO2011043020A1 Multiband compressor and adjustment method of same |
| 04/14/2011 | CA2777182A1 Adaptive dynamic range enhancement of audio recordings |
| 04/12/2011 | US7925032 Method of controlling volume of reproducing apparatus and reproducing apparatus using the same |
| 04/06/2011 | CN1620190B Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system |
| 03/23/2011 | EP2299590A1 Acoustic processing device |
| 03/09/2011 | EP2183850B1 Variable automatic limit control (alc) threshold for any desired compression curve |
| 01/26/2011 | CN101960715A System and method of reducing power consumption for audio playback |
| 01/13/2011 | US20110009987 Hierarchical Control Path With Constraints for Audio Dynamics Processing |
| 01/12/2011 | EP2273673A1 Audio signal processing device and audio signal processing method |
| 01/05/2011 | EP2269301A2 System and method of reducing power consumption for audio playback |
| 12/29/2010 | EP2011234B1 Audio gain control using specific-loudness-based auditory event detection |
| 12/23/2010 | WO2010145683A1 Method and circuit for controlling an output of an audio signal of a battery-powered device |
| 12/21/2010 | US7856108 Method for preventing an output device from being damaged |
| 12/15/2010 | EP2262280A2 Method and system for acoustic shock protection |
| 12/02/2010 | WO2010137650A1 Voice reproduction device, voice reproduction method, and program |
| 11/24/2010 | CN101897118A Prevention of audio signal clipping |
| 11/18/2010 | DE202010012133U1 Vorrichtung zur Veränderung eines Audiosignals über seinen Frequenzgang Device for change of an audio signal over its frequency response |
| 11/17/2010 | EP1771945B1 Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 11/11/2010 | WO2010090851A3 Adjusting dynamic range for audio reproduction |
| 11/10/2010 | EP1922820B1 Apparatus and method for removing ambient noise and mobile communication terminal equipped with the apparatus |
| 10/21/2010 | US20100266144 Audio processing chip and audio signal processing method thereof |
| 10/07/2010 | US20100254546 Signal processing device, signal processing method, and computer program |
| 09/30/2010 | US20100250258 Method for Correcting Metadata Affecting the Playback Loudness of Audio Information |
| 09/08/2010 | EP2225827A1 Prevention of audio signal clipping |
| 09/01/2010 | CN1879150B System and method for audio signal processing |
| 08/31/2010 | US7787640 System and method for spectral enhancement employing compression and expansion |
| 08/31/2010 | US7787634 Musical distortion circuits |
| 08/26/2010 | US20100215194 Audio signal amplification |
| 08/25/2010 | CN101373957B Digital gain control method and circuit |
| 08/24/2010 | US7783062 Automatic audio distortion control method and apparatus |
| 08/18/2010 | CN101807894A Volume correction device, volume correction method, volume correction program, and electronic equipment |
| 08/12/2010 | WO2010090851A2 Adjusting dynamic range for audio reproduction |
| 08/04/2010 | EP2214308A1 Method for correcting metadata affecting the playback loudness of audio information |
| 07/28/2010 | CN101790843A Variable automatic limit control (alc) threshold for any desired compression curve |
| 07/28/2010 | CN101790842A Systems and methods for controlling audio volume in the processor of a high definition audio codec |
| 07/13/2010 | US7756281 Method of modifying audio content |
| 06/30/2010 | CN101764586A Sound volume correcting device, sound volume correcting method, sound volume correcting program, and electronic apparatus |
| 06/24/2010 | WO2010071521A1 Systems and methods for improving the intelligibility of speech in a noisy environment |
| 06/23/2010 | EP2200340A1 Sound processing methods and apparatus |
| 06/23/2010 | EP1076928B1 User adjustable volume control that accommodates hearing |
| 06/16/2010 | CN1681204B Sound signal processing apparatus and sound signal processing method |
| 06/15/2010 | US7737759 Logarithmic linear variable gain CMOS amplifier |
| 06/10/2010 | US20100142714 Method and system for acoustic shock protection |
| 06/03/2010 | US20100135507 Clipping prevention device and clipping prevention method |