| Patents for H03G 9 - Combinations of two or more types of control, e.g. gain control and tone control (1,150) |
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| 10/12/2011 | EP2374211A1 Audio signal loudness determination and modification in the frequency domain |
| 09/29/2011 | WO2011119341A1 System and method for limiting excursion of an audio speaker |
| 09/28/2011 | EP2368373A1 System and method for dynamic bass frequency control |
| 09/22/2011 | WO2011115944A1 Techniques for distortion reducing multi-band compressor with timbre preservation |
| 09/15/2011 | WO2011110525A1 System for combining loudness measurements in a single playback mode |
| 09/14/2011 | CN101483416B Response balance processing method for voice |
| 08/18/2011 | US20110200209 Level adjusting circuit |
| 08/04/2011 | US20110188673 Apparatus for enabling karaoke |
| 08/03/2011 | EP2352225A1 Audio signal adjustment device and audio signal adjustment method |
| 08/02/2011 | US7991171 Method and apparatus for processing an audio signal in multiple frequency bands |
| 07/27/2011 | EP1616386B1 Volume and compression control in movie theaters |
| 07/14/2011 | WO2011085148A1 Compressor based dynamic bass enhancement with eq |
| 06/15/2011 | CN1848673B Acoustical system and contro method |
| 06/15/2011 | CN1627635B Signal compression/expansion device and mobile communication terminal |
| 05/25/2011 | CN102077609A Acoustic processing apparatus |
| 05/18/2011 | CN1592093B Frequency-selective phase/delay control for an amplifier |
| 04/28/2011 | WO2011048741A1 Multiband compressor |
| 04/13/2011 | EP2308046A2 Method and system for auditory enhancement and hearing conservation |
| 03/30/2011 | CN101997498A Volume adjusting method and device |
| 03/30/2011 | CN101494444B Program controlled power amplifier based on computer bus |
| 03/23/2011 | EP2297977A1 Acoustic processing method and apparatus |
| 03/23/2011 | CN101048935B Method and device for controlling the perceived loudness and/or the perceived spectral balance of an audio signal |
| 03/02/2011 | EP2291002A1 Acoustic processing apparatus |
| 02/24/2011 | US20110044472 Audio compensation unit and compensating method and audio processing device thereof |
| 02/15/2011 | US7889878 Speaker array apparatus and method for setting audio beams of speaker array apparatus |
| 02/15/2011 | US7889000 Method and system for polar modulating OFDM signals with discontinuous phase |
| 01/18/2011 | US7873174 Method of controlling output of ultrasonic speaker, ultrasonic speaker system, and display device |
| 01/12/2011 | EP2273673A1 Audio signal processing device and audio signal processing method |
| 12/28/2010 | US7859335 Method and system for polar modulating QAM signals with discontinuous phase |
| 12/23/2010 | WO2010145683A1 Method and circuit for controlling an output of an audio signal of a battery-powered device |
| 12/15/2010 | EP2262108A1 Adjusting the perceived loudness and/or the perceived spectral balance of an audio signal |
| 12/01/2010 | EP2002539B1 Loudness modification of multichannel audio signals |
| 11/16/2010 | US7834687 Method and system for polar modulation with discontinuous phase for RF transmitters with power control |
| 11/11/2010 | WO2010129395A1 Adjusting the loudness of an audio signal with perceived spectral balance preservation |
| 11/11/2010 | US20100284541 Receiving apparatus |
| 11/04/2010 | WO2010127024A1 Controlling the loudness of an audio signal in response to spectral localization |
| 11/04/2010 | DE102004055738B4 Signalbearbeitungseinheit und Signalbearbeitungsverfahren Signal processing unit and signal processing method |
| 10/21/2010 | DE102004054586B4 Verfahren und Vorrichtung zur Verstärkung eines amplituden- und phasenmodulierten elektrischen Signals Method and apparatus for amplifying an amplitude and phase modulated electrical signal |
| 09/29/2010 | EP2232700A1 System for adjusting perceived loudness of audio signals |
| 09/22/2010 | CN101119106B Output volume automatic regulation method of media player |
| 09/15/2010 | EP2229007A1 An apparatus for processing an audio signal and method thereof |
| 09/15/2010 | EP2228902A1 An apparatus for processing an audio signal and method thereof |
| 09/01/2010 | CN101819771A Method and apparatus for calculating and adjusting the perceived loudness of an audio signal |
| 08/31/2010 | US7787641 Sound reproducing system for use with multiple rooms |
| 08/11/2010 | EP2217004A1 Method and system for dynamic range control in an audio processing system |
| 08/05/2010 | US20100195846 Automatic level control circuit |
| 08/04/2010 | CN201541244U Low frequency high-power signal source |
| 07/29/2010 | US20100189283 Tone emphasizing device, tone emphasizing method, tone emphasizing program, and recording medium |
| 07/27/2010 | US7764796 Signal strength information dependent control of small electrodynamic transducers in audio systems |
| 07/01/2010 | WO2010075377A1 Audio signal loudness determination and modification in the frequency domain |
| 07/01/2010 | WO2010074658A1 System and method for dynamic bass frequency control |
| 06/29/2010 | US7747028 Apparatus and method for improving voice clarity |
| 06/23/2010 | EP2200340A1 Sound processing methods and apparatus |
| 06/23/2010 | CN1831940B Tune and rhythm quickly regulating method based on audio-frequency decoder |
| 06/22/2010 | US7742610 Automobile audiovisual system |
| 06/01/2010 | US7729491 Method and device for amplifying a reception signal |
| 05/26/2010 | EP2188986A1 Audio processing for compressed digital television |
| 05/14/2010 | WO2010052901A1 Variable frequency amplifier |
| 05/05/2010 | CN1674451B Dynamic equalizing apparatus and method |
| 04/22/2010 | WO2010044439A1 Audio signal adjustment device and audio signal adjustment method |
| 04/20/2010 | US7702115 Method and apparatus to reconstruct high-frequency components of an audio signal |
| 04/01/2010 | DE102009029422A1 Sender mit Hybrid-Leistungsregelung Transmitter with hybrid power control |
| 03/23/2010 | US7683712 Wireless frequency power amplifier, semiconductor device, and wireless frequency power amplification method |
| 03/18/2010 | US20100067717 Image processing apparatus and control method thereof |
| 03/02/2010 | US7672462 Method and system for acoustic shock protection |
| 02/10/2010 | EP2151920A1 A method and an apparatus for processing an audio signal |
| 02/09/2010 | US7659779 Method and system for polar modulating OFDM signals with discontinuous phase |
| 02/03/2010 | EP2150002A2 Clipping detection device and method |
| 02/03/2010 | EP2149986A1 An apparatus for processing an audio signal and method thereof |
| 02/03/2010 | EP2149985A1 An apparatus for processing an audio signal and method thereof |
| 01/27/2010 | CN201393292Y Low-frequency enhancing headphone |
| 01/19/2010 | US7650002 Digital compressor for multi-channel audio system |
| 01/14/2010 | WO2010005033A1 Acoustic processing apparatus |
| 12/30/2009 | EP2139264A1 Acoustic processing system and method for electronic device and mobile telephone terminal |
| 12/09/2009 | CN101599747A Volume control apparatus and method |
| 12/02/2009 | EP2128978A1 Reproducing apparatus and reproducing method |
| 12/02/2009 | EP2127074A1 Audio reproduction method and apparatus with auto volume control function |
| 11/11/2009 | CN101577848A Supper bass boosting method and system |
| 11/10/2009 | USRE40960 Switched signal processing circuit |
| 11/04/2009 | EP1540818B1 Circuit arrangement and signal processing device |
| 10/21/2009 | EP2109934A1 Personalized sound system hearing profile selection process |
| 10/20/2009 | US7606378 Radio distortion processing |
| 10/13/2009 | US7602242 Method and system for polar modulating QAM signals with discontinuous phase |
| 10/06/2009 | US7599503 Audio output level setting method and device |
| 10/06/2009 | CA2360970C A wireless microphone having a split-band audio frequency companding system that provides improved noise reduction and sound quality |
| 09/17/2009 | WO2009114746A1 System and method for processing audio signal |
| 09/09/2009 | CN100539447C AM receiver circuit |
| 09/09/2009 | CN100539406C Audio pre-amp and mid-band compressor circuit |
| 09/09/2009 | CN100539401C Method and device for amplifying a reception signal |
| 09/08/2009 | US7587254 Dynamic range control and equalization of digital audio using warped processing |
| 09/02/2009 | EP2095513A2 System and method for digital signal processing |
| 09/01/2009 | US7583809 Sound signal processing device and sound signal processing method |
| 08/27/2009 | WO2009103832A1 Method for controlling and processing analog signals, digital signals or a combination thereof |
| 08/20/2009 | WO2009101315A1 Power weighting of a multicarrier signal on reception in a communication system |
| 08/18/2009 | US7577263 System for audio signal processing |
| 08/05/2009 | CN100524509C Digital sound console and power amplifier integrated machine |
| 07/29/2009 | CN101494444A Program controlled power amplifier based on computer bus |
| 07/22/2009 | CN101490952A Volume dependent audio frequency gain profile |
| 07/15/2009 | CN101483416A Response balance processing method for voice |
| 07/15/2009 | CN100514853C Volume and compression control in movie theaters |