| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
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| 11/22/2007 | US20070269056 Method and Apparatus for Audio Signal Expansion and Compression |
| 11/15/2007 | US20070263882 Automatic Gain Control Circuit and Signal Reproducing Device |
| 11/14/2007 | EP1855506A2 Method and apparatus to direct sound using an array of output transducers |
| 11/08/2007 | WO2007127023A1 Audio gain control using specific-loudness-based auditory event detection |
| 11/08/2007 | US20070258603 Method for enhancing audio signals |
| 11/08/2007 | CA2648237A1 Audio gain control using specific-loudness-based auditory event detection |
| 10/24/2007 | EP0921635B1 Power amplifier device |
| 10/17/2007 | EP1076928A4 User adjustable volume control that accommodates hearing |
| 10/16/2007 | US7283879 Dynamic normalization of sound reproduction |
| 09/25/2007 | US7274795 System for and method of audio signal processing for presentation in a high-noise environment |
| 09/20/2007 | WO2007106384A1 Music compatible headset amplifier with anti-startle feature |
| 09/18/2007 | US7272235 Method and apparatus for audio normalization |
| 09/13/2007 | DE202007005278U1 Digital steuerbarer Reflektor für Transpondersysteme und Signalgeber Digitally controllable reflector for transponder systems and Sounders |
| 09/12/2007 | EP1552505A4 Digital signal processing techniques for improving audio clarity and intelligibility |
| 09/12/2007 | CN101036293A System for and method of audio signal processing for presentation in a high-noise environment |
| 09/06/2007 | US20070206684 Method and system for all digital gain control |
| 08/30/2007 | US20070203535 Cochlear implants and apparatus/methods for improving audio signals by use of frequency-amplitude-modulation-encoding (FAME) strategies |
| 08/22/2007 | CN1333363C Audio signal processing apparatus and audio signal processing method |
| 08/07/2007 | US7254243 Processing of an audio signal for presentation in a high noise environment |
| 08/02/2007 | DE102004044565B4 Verfahren zur Begrenzung des Dynamikbereichs von Audiosignalen und Schaltungsanordnung hierzu A method of limiting the dynamic range of audio signals, and circuitry for this purpose |
| 08/01/2007 | EP1813026A2 Transmitter and receiver for a wireless audio transmission system |
| 08/01/2007 | EP1687812B1 System and method for audio signal processing |
| 07/25/2007 | EP1811660A1 Method and apparatus for automatically adjusting speaker gain within a mobile telephone |
| 07/12/2007 | US20070160241 Determination of the adequate measurement window for sound source localization in echoic environments |
| 06/27/2007 | EP1801967A2 Active star point for use in a communications system with star topology |
| 06/21/2007 | US20070140512 Signal processing for hearing devices having a number of compression algorithms |
| 06/21/2007 | DE102005061000A1 Signalverarbeitung für Hörgeräte mit mehreren Kompressionsalgorithmen Signal processing for hearing aids with multiple compression algorithms |
| 06/20/2007 | EP1798852A2 Distortion compensation |
| 06/19/2007 | US7233833 Method of modifying low frequency components of a digital audio signal |
| 06/19/2007 | US7233624 Method and system for all digital gain control |
| 06/19/2007 | US7233200 AGC circuit, AGC circuit gain control method, and program for the AGC circuit gain control method |
| 06/13/2007 | CN1981433A Method of and system for automatically adjusting the loudness of an audio signal |
| 06/06/2007 | EP1543612A4 Power supply based audio compression for digital audio amplifier |
| 06/06/2007 | CN1320442C Audio processing circuit and related method |
| 06/05/2007 | US7227412 Attenuation cell with an attenuation factor control device |
| 05/31/2007 | US20070121965 Automatic audio signal dynamic range adjustment |
| 05/30/2007 | CN1973434A Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 05/24/2007 | US20070116369 Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
| 05/24/2007 | US20070116301 Audio playback apparatus |
| 05/17/2007 | US20070109050 Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 05/16/2007 | CN2901699Y Linear logarithmic signal changing circuit capable of programmable gain value |
| 05/02/2007 | EP1779509A2 System for and method of audio signal processing for presentation in a high-noise environment |
| 05/02/2007 | CN1957637A Volume adjusting apparatus |
| 05/01/2007 | US7212640 Variable attack and release system and method |
| 04/25/2007 | EP1683391A4 System and method for controlling audio output |
| 04/17/2007 | US7206420 Softclip method and apparatus |
| 04/11/2007 | EP1771945A1 Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 04/05/2007 | US20070076905 Audio output apparatus |
| 04/05/2007 | DE19710474B4 Übertragungsleistungserfassungsschaltung zum Erfassen einer Übertragungsleistung eines Funksignals Transmission power detecting circuit for detecting a transmission power of a radio signal |
| 04/04/2007 | EP1770857A2 Audio equipment with reduced nonlinear distortion factor and method for the reduction of the nonlinear distortion factor of an audio equipment |
| 04/04/2007 | EP1362417B1 Variable-gain differential input and output amplifier |
| 03/21/2007 | EP1763923A1 Method of and system for automatically adjusting the loudness of an audio signal |
| 03/13/2007 | US7190292 Input level adjust system and method |
| 02/21/2007 | EP1754307A2 Companion microphone system and method |
| 02/21/2007 | CN1918790A Radio frequency low noise amplifier with automatic gain control |
| 02/21/2007 | CN1918788A Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 02/21/2007 | CN1917561A Conversible wavelet conversion and embedded code flow processing |
| 02/20/2007 | US7181028 Audio converting device and converting method thereof |
| 02/20/2007 | US7180939 Active filter circuit with dynamically modifiable internal gain |
| 02/20/2007 | US7180358 CMOS exponential function generating circuit with temperature compensation technique |
| 02/15/2007 | WO2007017304A1 Electronic appliance for triggering audio signals as well as corresponding computer programme and corresponding computer-readable storage medium |
| 02/15/2007 | DE102005058320A1 Verfahren zum Verhindern einer Beschädigung einer Ausgangseinrichtung A method for preventing damage to an output device |
| 02/14/2007 | CN1914796A Automatic audio signal dynamic range adjustment |
| 02/14/2007 | CN1913346A Noise sensitive volume control device, audio device and noise sensitive volume control method |
| 01/30/2007 | US7171170 Envelope limiting for polar modulators |
| 01/30/2007 | US7170847 Means for limiting an output signal of an amplifier stage |
| 01/30/2007 | CA2314052C Impedance blocking filter circuit |
| 01/24/2007 | EP0944166B1 Automatic dynamic range controlling circuit |
| 01/17/2007 | CN1898988A Audio output apparatus |
| 01/16/2007 | US7164774 Amplifier with limiter |
| 01/10/2007 | CN1894855A System and method for detection of amplitude limit and modification of signal |
| 01/04/2007 | US20070003077 Method of fitting portable communication device to a hearing impaired user |
| 12/28/2006 | WO2005086801A3 Companion microphone system and method |
| 12/26/2006 | US7155020 Audio circuitry for dynamics reduction |
| 12/19/2006 | USRE39432 Impedance blocking filter circuit |
| 12/13/2006 | CN1879297A System and method for controlling audio output |
| 12/13/2006 | CN1879150A System and method for audio signal processing |
| 12/07/2006 | WO2006128856A1 Device and method for audio signal gain control |
| 12/06/2006 | EP1729410A1 Device and method for audio signal gain control |
| 12/06/2006 | EP1040570B1 A current steering variable gain amplifier with linearizer |
| 11/30/2006 | US20060271358 Enhancing the intelligibility of received speech in a noisy environment |
| 11/23/2006 | WO2006125061A1 Adapted audio response |
| 11/23/2006 | CA2608749A1 Adapted audio response |
| 11/16/2006 | WO2005124999A3 Peak-limiting mixer for multiple audio tracks |
| 11/14/2006 | US7135922 Power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 11/09/2006 | WO2006118292A1 Speech output control device and recording medium recorded with speech output control programs |
| 11/09/2006 | US20060251273 Circuit for reducing pulse noise caused at switching of an analog audio processing circuit |
| 11/08/2006 | EP1719243A2 Radio frequency low noise amplifier with automatic gain control |
| 11/02/2006 | WO2006114513A1 Method for transmitting a signal modulated with high amplitude dynamics, corresponding transmitter and receiver |
| 11/02/2006 | US20060245604 Circuit arrangement for reducing the dynamic range of audio signals |
| 11/02/2006 | EP1716638A2 Automatic audio signal dynamic range adjustment |
| 11/01/2006 | CN1856934A Audio pre-amp and mid-band compressor circuit |
| 10/26/2006 | WO2006113062A1 Audio metadata verification |
| 10/18/2006 | EP1713177A1 Variable gain differential amplifier |
| 10/18/2006 | EP0867067B1 Amplifier having linear-in-db gain control |
| 10/17/2006 | US7123732 Process to adapt the signal amplification in a hearing device as well as a hearing device |
| 10/12/2006 | WO2006105940A1 Compander system |
| 10/11/2006 | EP1709733A2 Improved power supply rejection for pulse width modulated amplifiers and automatic gain control |
| 10/05/2006 | US20060222254 Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
| 09/28/2006 | US20060214653 Gain and phase detector having dual logarithmic amplifiers |