| Patents for H03G 5 - Tone control or bandwidth control in amplifiers (3,156) |
|---|
| 04/25/2006 | US7034608 Correcting DC offsets in a multi-stage amplifier |
| 04/20/2006 | WO2005032206A3 Adjustable speaker systems and methods |
| 04/19/2006 | CN1761474A Actacid composition |
| 04/13/2006 | DE10114026B4 Audiosystem für elektronisches Musikinstrument Audio system for electronic musical instrument |
| 04/11/2006 | US7027605 Mid-range loudspeaker |
| 04/11/2006 | US7026803 Hand-held, ergonomic capacitive amplifier and hand-held tone generator to be used in conjunction with the capacitive amplifier |
| 04/06/2006 | DE102004038089A1 Reglergestütztes Verfahren und reglergestützte Vorrichtung zur Bestimmung der Kennlinie eines Kompensationsgliedes in einem Pegelkreis Controller-implemented method and apparatus for determining the controller based characteristic of a compensation element in a level circular |
| 04/04/2006 | US7024260 Method and apparatus for processing digital audio signal |
| 04/04/2006 | US7024008 Acoustic quality enhancement via feedback and equalization for mobile multimedia systems |
| 04/04/2006 | US7024007 Electric signal processing of electroacoustic transducer |
| 04/04/2006 | US7024003 Wireless speaker system suitable for hard-wired audio system |
| 04/04/2006 | US7024002 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems |
| 03/30/2006 | US20060067542 Feed forward equalizer |
| 03/30/2006 | US20060067541 Audio signal processing apparatus and method for the same |
| 03/29/2006 | CN1754205A Band correcting apparatus |
| 03/28/2006 | US7020447 Method and apparatus for compensating for distortion in radio apparatus |
| 03/23/2006 | US20060062405 Multipass parametric or graphic EQ fitting |
| 03/23/2006 | US20060062404 Cross-over frequency selection and optimization of response around cross-over |
| 03/23/2006 | US20060062395 Acoustic correction apparatus |
| 03/21/2006 | US7016509 System and method for varying low audio frequencies inversely with audio signal level |
| 03/16/2006 | US20060056646 Phase equalization for multi-channel loudspeaker-room responses |
| 03/14/2006 | US7013271 Method and system for implementing a low complexity spectrum estimation technique for comfort noise generation |
| 03/14/2006 | US7013011 Audio limiting circuit |
| 03/14/2006 | US7012464 Method and circuit for a dual supply amplifier |
| 03/09/2006 | WO2005114835A3 Air compression apparatus and method of use |
| 03/09/2006 | US20060050898 Audio signal processing apparatus and method |
| 03/09/2006 | US20060050897 Audio signal processing method and apparatus device |
| 02/28/2006 | US7006641 Driving circuit, electro-mechanical-acoustic transducer, and portable terminal apparatus |
| 02/23/2006 | WO2006020427A2 System for and method of audio signal processing for presentation in a high-noise environment |
| 02/23/2006 | CA2576829A1 System for and method of audio signal processing for presentation in a high-noise environment |
| 02/22/2006 | EP1628397A1 Audio quality adjustment device |
| 02/21/2006 | US7003124 System and method for adjusting frequency response characteristics of high-pass crossovers supplying signal to speakers used with subwoofers |
| 02/16/2006 | US20060034471 System for and method of audio signal processing for presentation in a high-noise environment |
| 02/16/2006 | US20060034470 Processing of an audio signal for presentation in a high noise environment |
| 02/14/2006 | US6999592 Time and frequency windowed pocket cardiac stethoscope |
| 02/09/2006 | US20060029236 Interference alleviation equalizing apparatus of multi-carrier communication system and method thereof |
| 02/07/2006 | US6996240 Loudspeaker unit adapted to environment |
| 02/02/2006 | US20060023898 Apparatus and method for producing sound |
| 01/31/2006 | US6993305 AM receiver with audio filtering means |
| 01/31/2006 | US6993141 System for distributing a signal between loudspeaker drivers |
| 01/26/2006 | US20060020449 Method and system for generating colored comfort noise in the absence of silence insertion description packets |
| 01/26/2006 | US20060018669 Optical receiver with dynamic gain and bandwidth |
| 01/26/2006 | US20060018491 Single-sided Bessel array |
| 01/26/2006 | US20060018490 Bessel array |
| 01/05/2006 | US20060002586 Method and apparatus for detecting left objects |
| 01/04/2006 | CN1716764A System and method for adjusting an audio signal |
| 01/03/2006 | US6983053 Method of selecting a frequency band of an output audio signal by a computer |
| 12/29/2005 | WO2005125003A2 Method and apparatus for detecting left objects |
| 12/29/2005 | WO2005125002A2 Low-cost hearing testing system and method of collecting user information |
| 12/22/2005 | US20050281416 Infra bass |
| 12/21/2005 | CN1233195C Band width expanding device |
| 12/15/2005 | US20050276425 System and method for adjusting an audio signal |
| 12/14/2005 | CN1232030C Digital audio processor |
| 12/13/2005 | US6975734 Audio apparatus of negative driving with adaptive gain control |
| 12/07/2005 | EP1603113A1 Signal processor for switchable flat filtering |
| 12/07/2005 | CN1705228A Signal processor |
| 12/07/2005 | CN1230984C Basic digital accentuator using arithmetic processor |
| 12/01/2005 | WO2005114835A2 Air compression apparatus and method of use |
| 12/01/2005 | US20050266712 Signal routing apparatus and signal routing program |
| 12/01/2005 | US20050265564 Adapter connectable between audio amplifier and transmitter for cordless speaker |
| 12/01/2005 | US20050265560 Indoor communication system for a vehicular cabin |
| 12/01/2005 | US20050265497 Signal processor |
| 12/01/2005 | CA2566732A1 Air compression apparatus and method of use |
| 11/30/2005 | EP1601171A1 System And Method For Adjusting An Audio Signal |
| 11/30/2005 | EP1600941A1 Dip filter frequency characteristic decision method |
| 11/30/2005 | EP1600866A2 Signal routing apparatus and signal routing program |
| 11/30/2005 | CN1702661A Signal routing apparatus and signal routing program |
| 11/28/2005 | CA2715742A1 Circuit, system and method for adjusting an audio signal |
| 11/24/2005 | US20050259833 Frequency responses, apparatus and methods for the harmonic enhancement of audio signals |
| 11/17/2005 | WO2005109635A1 A method of audio reproduction at a receiver using an audio-equaliser |
| 11/17/2005 | US20050254564 Graphic equalizers |
| 11/15/2005 | US6965676 Volume-responsive loudness compensation circuits, systems, and methods |
| 11/10/2005 | WO2005106843A1 Reproduction control of an audio signal based on musical genre classification |
| 11/10/2005 | US20050249363 Signal processing method for audio signal compensation |
| 11/09/2005 | CN1694580A Measuring apparatus and method, and recording medium |
| 11/03/2005 | US20050244012 Measuring apparatus and method, and recording medium |
| 11/02/2005 | EP1592283A2 Measuring apparatus and method, and recording medium |
| 11/02/2005 | EP1591995A1 Indoor communication system for a vehicular cabin |
| 11/02/2005 | CN1225934C Apparatus and method for controlling multifunction device of mobile terminal |
| 11/01/2005 | US6961435 Infra bass |
| 10/27/2005 | DE19704519B4 Vorrichtung zur Frequenzgangkompensation eines Audiosignals Apparatus for frequency compensation of an audio signal |
| 10/26/2005 | CN1225091C Base band circuit of receiver and low frequency cut-off frequency controlling method |
| 10/25/2005 | US6958644 Active filter circuit with dynamically modifiable gain |
| 10/20/2005 | WO2005099106A1 Am reception circuit |
| 10/20/2005 | US20050232443 Machine for audio/video stereo receiver with multiple tone controls |
| 10/20/2005 | US20050231289 Integrated amplifier, electronic communication unit with integrated amplifier and method for operating the electronic communication unit with an integrated amplifier |
| 10/19/2005 | CN1684364A Sound volume regulator for buzzer |
| 10/12/2005 | CN1682441A Electrical impedance based audio compensation in audio devices and methods therefor |
| 10/12/2005 | CN1681199A Method and device for amplifying a reception signal |
| 10/06/2005 | WO2005091807A2 Equalizer parameter control interface and method for parametric equalization |
| 10/06/2005 | US20050220313 Howling frequency component emphasis method and apparatus |
| 10/05/2005 | CN1679082A Controlling loudness of speech in signals that contain speech and other types of audio material |
| 10/05/2005 | CN1678129A Howling frequency component emphasis method and apparatus |
| 09/29/2005 | US20050213779 Methods and apparatus for audio signal equalization |
| 09/29/2005 | US20050213776 Automobile audio system and signal processing method therefor |
| 09/29/2005 | US20050212592 Switching amplifier |
| 09/29/2005 | DE102004009685B3 Power amplifier arrangement, has transistors with collector terminals respectively connected to input and output, and capacitive storage unit and potential buffer serially connected between output and node |
| 09/22/2005 | US20050207582 Test apparatus, test method, and computer program |
| 09/21/2005 | EP1578170A2 Test apparatus, test method, and computer program |
| 09/21/2005 | CN1671253A Test apparatus, test method, and computer program |