| Patents for H03G 5 - Tone control or bandwidth control in amplifiers (3,156) |
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| 11/18/2009 | EP2120433A1 User-selectable headset equalizer for voice calls |
| 11/12/2009 | DE112008000309T5 Verstärkungskontrollgerät, Testsignalerzeugungsmodul, Testgerät, Verstärkungskontrollverfahren, Programm und Aufnahmemedium Gain control device, test signal generation module tester, gain control method, program, and recording medium |
| 11/10/2009 | US7617109 Method for correcting metadata affecting the playback loudness and dynamic range of audio information |
| 11/05/2009 | US20090276067 System and method for adjusting an audio signal |
| 11/05/2009 | US20090274309 Method and system for equalizing a loudspeaker in a room |
| 11/03/2009 | US7613311 Digital implementation of a fourth order Linkwitz-Riley network with a low cutoff frequency |
| 10/28/2009 | CN101569092A System for processing audio data |
| 10/28/2009 | CN101567673A Audio equalizing method and device |
| 10/28/2009 | CN100555848C System for audio signal processing |
| 10/21/2009 | EP2111041A1 Audio processing device, audio processing method, and program |
| 10/08/2009 | US20090252346 Method of processing audio files |
| 10/08/2009 | DE4497810B4 Funkempfänder und Verfahren zum Demodulieren sowohl von breitbandigen frequenzmodulieten Signalen, als auch von schmalbandigen frequenzmodulierten Signalen Funkempfänder and method of demodulating both wideband frequenzmodulieten signals and narrowband frequency-modulated signals |
| 10/06/2009 | US7598808 Gigabit ethernet transceiver with analog front end |
| 10/01/2009 | US20090245535 Loudspeaker Apparatus for Radiating Acoustic Waves in a Hemisphere |
| 09/24/2009 | US20090238380 Spatially robust audio precompensation |
| 09/17/2009 | WO2009112825A1 Audio processing |
| 09/17/2009 | US20090232329 Equalization method using equal loudness curve, and sound output apparatus using the same |
| 09/15/2009 | US7590250 Analog audio signal enhancement system using a noise suppression algorithm |
| 09/09/2009 | CN100539401C Method and device for amplifying a reception signal |
| 09/03/2009 | US20090220108 Processing of an audio signal for presentation in a high noise environment |
| 09/03/2009 | US20090220098 Adaptive bass management |
| 09/02/2009 | EP2095513A2 System and method for digital signal processing |
| 09/01/2009 | US7583809 Sound signal processing device and sound signal processing method |
| 08/26/2009 | EP2092787A2 System and method for compensating memoryless non-linear distortion of an audio transducer |
| 08/26/2009 | EP2092640A1 Constant balance volume control |
| 08/26/2009 | CN100534075C Adaptive equalizer with DC offset compensation |
| 08/18/2009 | US7577263 System for audio signal processing |
| 08/18/2009 | US7577259 Method and apparatus for extending band of audio signal using higher harmonic wave generator |
| 08/11/2009 | US7574010 System and method for adjusting an audio signal |
| 08/11/2009 | US7574009 Method and apparatus for controlling the reproduction in audio signals in electroacoustic converters |
| 08/11/2009 | US7574005 Howling frequency component emphasis method and apparatus |
| 08/05/2009 | EP2084813A1 Digital signal processing |
| 07/29/2009 | CN100521522C High-frequency receiver and high-frequency transmitter using the same |
| 07/22/2009 | EP1765153A4 A sytem for and method of conveniently and automatically testing the hearing of a person |
| 07/21/2009 | US7564899 Multistage tuning-tolerant equalizer filter |
| 07/16/2009 | US20090179698 Eefficient integrated linear amplifier module |
| 07/09/2009 | US20090176449 Out-of-Band Signal Generator and Frequency Band Expander |
| 07/09/2009 | US20090174823 Equalizer Interface for Electronic Apparatus |
| 07/08/2009 | CN100512245C Adaptive equalizer with DC offset compensation |
| 07/07/2009 | US7558390 Listening device |
| 07/02/2009 | US20090169025 Method for adjusting frequency response curve of speaker |
| 06/30/2009 | US7555130 Acoustic correction apparatus |
| 06/25/2009 | US20090161887 Data processing apparatus and method of controlling the same |
| 06/24/2009 | EP2073511A1 Mobile terminal and equalizer controlling method thereof |
| 06/23/2009 | US7551025 High-voltage transconductance circuit |
| 06/18/2009 | WO2009075726A1 Bass enhancement for audio |
| 06/16/2009 | US7549157 Automatic gain-setting in relaying device |
| 06/11/2009 | US20090147134 Audio signal supplying device, parameter providing system, television set, av system, speaker apparatus, and audio signal supplying method |
| 06/09/2009 | US7545946 Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges |
| 06/03/2009 | EP1759457A4 Low-cost hearing testing system and method of collecting user information |
| 06/02/2009 | US7541864 Power amplifier and pulse-width modulated amplifier |
| 05/20/2009 | CN201243266Y Equilibrium processing device for frequency response characteristic of audio-frequency system based on DSP |
| 05/14/2009 | US20090122999 Method of improving acoustic properties in music reproduction apparatus and recording medium and music reproduction apparatus suitable for the method |
| 05/13/2009 | EP1097510B1 Capacitor-less crossover network for electro-acoustic loudspeakers |
| 05/07/2009 | WO2009057488A1 Auditory sensibility correction device |
| 05/07/2009 | US20090116666 Adjusting acoustic speaker output based on an estimated degree of seal of an ear about a speaker port |
| 05/05/2009 | US7529377 Loudspeaker with automatic calibration and room equalization |
| 04/30/2009 | DE102007051402A1 Lautsprechersystem und Verfahren zum Betreiben des Lautsprechersystems Speaker system and method of operating the speaker system |
| 04/23/2009 | US20090103741 Method of correction of acoustic parameters of electro-acoustic transducers and device for its realization |
| 04/23/2009 | DE10000292B4 Automatische Verstärkungssteuerung für einen Empfänger und Verfahren zur automatischen Verstärkungssteuerung Automatic gain control for a receiver and method for automatic gain control |
| 04/14/2009 | US7519442 Process for adjusting the sound volume of a digital sound recording |
| 04/14/2009 | US7519187 Array speaker system |
| 04/09/2009 | WO2009045649A1 Phase decorrelation for audio processing |
| 04/09/2009 | US20090092265 Audio dosage control |
| 04/08/2009 | CN100477520C Signal processor |
| 04/02/2009 | US20090088224 Adaptive volume control |
| 04/02/2009 | US20090086995 Automatic bass management |
| 04/01/2009 | CN100474939C Sounder signal processor and method |
| 03/26/2009 | US20090080675 Dynamic bass boost filter |
| 03/25/2009 | CN101394158A Sound signal equalizer |
| 03/19/2009 | US20090074207 Mobile communication device capable of setting tone color and method of setting tone color |
| 03/19/2009 | US20090074206 Method of enhancing sound for hearing impaired individuals |
| 03/19/2009 | US20090074204 Information processing apparatus, information processing method, and program |
| 03/12/2009 | US20090067664 Method for equalizing audio, and video apparatus using the same |
| 03/12/2009 | US20090067644 Economical Loudness Measurement of Coded Audio |
| 03/04/2009 | EP2031847A1 Method and apparatus allowing for user-selectable acoustic equalizer settings for voice calls |
| 03/04/2009 | CN101378250A Audio-signal processing apparatus and method |
| 03/04/2009 | CN101378249A Equalizer system and filtering method |
| 02/26/2009 | WO2009026124A1 Receiver with adaptive equalizer |
| 02/26/2009 | US20090052695 Signal processing device, signal processing method, and program therefor |
| 02/26/2009 | US20090052694 Pseudo deep bass generating device |
| 02/26/2009 | US20090052693 Sound Reproducing Apparatus |
| 02/26/2009 | US20090052692 Sound field generator and method of generating sound field using the same |
| 02/26/2009 | CA2697267A1 Receiver with adaptive equalizer |
| 02/25/2009 | CN101373961A Signal processing device, signal processing method, and program therefor |
| 02/24/2009 | US7496338 Multi-segment gain control system |
| 02/19/2009 | US20090047993 Method of using music metadata to save music listening preferences |
| 02/19/2009 | US20090046871 Method and apparatus for audio processing |
| 02/12/2009 | US20090041266 Electrostatic loudspeaker driver |
| 02/12/2009 | US20090041265 Sound signal processing device, sound signal processing method, sound signal processing program, storage medium, and display device |
| 02/11/2009 | EP2023652A1 Audio driver device and method of operating an audio driver device |
| 02/11/2009 | CN101366177A Audio dosage control |
| 02/05/2009 | US20090033417 Method and system for polar modulation with discontinuous phase for rf transmitters with power control |
| 02/05/2009 | US20090033416 Method and system for polar modulating qam signals with discontinuous phase |
| 02/05/2009 | US20090033414 Method and system for polar modulating ofdm signals with discontinuous phase |
| 02/05/2009 | DE202007018517U1 Vorrichtung zur Anpassung der Tonlautstärke von elektronischen Geräten an die Umgebungslautstärke Device for adjusting the sound volume of electronic devices to the ambient noise |
| 02/04/2009 | CN101359902A Equalizing method and system for audio signal |
| 02/03/2009 | US7486797 Audio correcting apparatus |
| 01/28/2009 | CN101356726A High harmonic suppressing circuit |
| 01/27/2009 | US7483540 Automatic audio system equalizing |