| Patents for H03G 5 - Tone control or bandwidth control in amplifiers (3,156) |
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| 09/20/2005 | US6947567 Audio boost circuit |
| 09/15/2005 | US20050201573 Musical instrument audio amplifier circuit and system for producing distortion effects |
| 09/15/2005 | US20050201572 Method and system for approximating graphic equalizers using dynamic filter order reduction |
| 09/15/2005 | DE19620096B4 Verfahren zur Klangeinstellung von Audiosignalen innerhalb eines Frequenzbereiches Method for sound adjustment of audio signals within a frequency range |
| 09/15/2005 | DE102004006957A1 Verfahren und Vorrichtung zum Verstärken eines Empfangssignals Method and apparatus for amplifying a reception signal |
| 09/14/2005 | EP1575163A2 Automobile audio system and signal processing method therefor |
| 09/08/2005 | US20050195995 Audio mixing using magnitude equalization |
| 09/08/2005 | US20050195993 Method and apparatus of compensating for speaker distortion in an audio apparatus |
| 09/08/2005 | US20050195013 Tunable current-mode integrator for low-frequency filters |
| 09/07/2005 | EP1571753A1 Method and apparatus of compensating for speaker distortion in an audio apparatus |
| 09/07/2005 | EP1570573A1 A fully parametric equalizer |
| 09/01/2005 | US20050191981 Method and device for amplifying a reception signal |
| 09/01/2005 | US20050190930 Equalizer parameter control interface and method for parametric equalization |
| 09/01/2005 | US20050189993 Gigabit ethernet transceiver with analog front end |
| 08/31/2005 | CN1662100A Bass boost circuit and bass boost processing program |
| 08/30/2005 | US6937733 Audio system with a phase adjustment circuit |
| 08/25/2005 | US20050185802 Bass boost circuit and bass boost processing program |
| 08/25/2005 | US20050185710 Adaptive equalizer with DC offset compensation |
| 08/25/2005 | US20050184801 Adaptive equalizer with DC offset compensation |
| 08/24/2005 | EP1566932A2 Adaptive equalizer with DC offset compensation |
| 08/24/2005 | EP1566885A2 Adaptive equalizer with DC offset compensation |
| 08/24/2005 | CN1658604A Adaptive equalizer with DC offset compensation |
| 08/24/2005 | CN1658603A Adaptive equalizer with DC offset compensation |
| 08/23/2005 | US6934565 Apparatus and method for controlling multi-function device of mobile terminal |
| 08/23/2005 | US6934519 Radio transmission apparatus |
| 08/18/2005 | US20050180584 Speaker apparatus |
| 08/16/2005 | US6931139 Computer audio system |
| 08/11/2005 | US20050175193 Method for designing a modal equalizer for a low frequency audible range especially for closely positioned modes |
| 08/11/2005 | US20050174189 Equalizer, group delay compensation circuit for the equalizer and method of compensating for group delay in the equalizer |
| 08/09/2005 | US6928172 Automatic sound field correcting system |
| 08/04/2005 | WO2005071830A1 System for audio signal processing |
| 08/03/2005 | CN1649406A Emphasis circuit |
| 08/02/2005 | US6925114 Weak signal processing based on impulse noise blanking |
| 07/28/2005 | US20050164661 Emphasis circuit |
| 07/28/2005 | US20050162220 Adjustable bandwidth high pass filter for large input signal, low supply voltage applications |
| 07/27/2005 | EP1557960A1 Emphasis circuit |
| 07/21/2005 | US20050157886 System and method for monitoring audible tones in a multiple planar chassis |
| 07/21/2005 | US20050157885 Audio system parameter setting based upon operator usage patterns |
| 07/20/2005 | EP1555754A1 Audio system parameter setting based upon operator usage patterns |
| 07/19/2005 | US6920224 Deep bass sound booster device |
| 07/14/2005 | WO2005064986A1 Audio output apparatus |
| 07/13/2005 | EP1552608A2 Electrical impedance based audio compensation in audio devices and methods therefor |
| 06/30/2005 | US20050141727 Apparatus for generating harmonics in an audio signal |
| 06/21/2005 | US6909787 Method and related apparatus for stereo vocal cancellation |
| 06/09/2005 | US20050123151 Audio headband device |
| 06/09/2005 | DE10351145A1 Process for the frequency dependent loudness adjustment of and audio apparatus especially in a motor vehicle compares a given first level with a variable actual audio signal level |
| 06/08/2005 | EP1485990A4 Communication device with active equalization and method therefor |
| 05/26/2005 | US20050111562 Tone quality adjustment device designing method and designing device, tone quality adjustment device designing program, and tone quality adjustment device |
| 05/25/2005 | EP1532621A1 Controlling loudness of speech in signals that contain speech and other types of audio material |
| 05/24/2005 | US6898470 Digital tone controls and systems using the same |
| 05/24/2005 | US6897725 Class D amplifier |
| 05/24/2005 | CA2169869C Vehicle speaker control system |
| 05/17/2005 | US6895290 Limiting the damaging effects of loud music from audio systems, particularly from automobile audio systems |
| 05/17/2005 | US6894558 Adjustable bandwidth high pass filter for large input signal, low supply voltage applications |
| 05/12/2005 | US20050100178 Audio system for a computer |
| 05/10/2005 | US6892103 Digital tone control with linear step coefficients |
| 05/05/2005 | US20050094828 Bass boost circuit |
| 05/05/2005 | US20050094751 Variable gain integrator |
| 05/04/2005 | CN1612619A Automatic frequency control method |
| 05/04/2005 | CN1612475A 可变增益积分器 Variable gain integrator |
| 05/04/2005 | CN1612469A Bass boost circuit |
| 04/28/2005 | US20050091043 Acoustic signal processor |
| 04/28/2005 | US20050088238 High speed amplifier incorporating pre-emphasis |
| 04/27/2005 | CN1199518C Method for processing an audio signal |
| 04/21/2005 | WO2005036740A1 Dynamic bass boost apparatus and method |
| 04/21/2005 | US20050084117 Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same |
| 04/21/2005 | CA2538809A1 Dynamic bass boost apparatus and method |
| 04/20/2005 | EP1523805A2 Circuit arrangement for reducing the dynamic range of audio signals |
| 04/20/2005 | CN1607725A Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same |
| 04/13/2005 | CN1606383A Equalizing circuit |
| 04/07/2005 | WO2005032206A2 Adjustable speaker systems and methods |
| 04/07/2005 | WO2005011111A3 Audio conditioning apparatus, method and computer program product |
| 04/07/2005 | US20050074133 Equalizing circuit amplifying bass range signal |
| 04/06/2005 | EP1210765A4 Filter banked gain control of audio in a noisy environment |
| 03/31/2005 | WO2004082321A3 Multi-channel digital feedback reducer system |
| 03/31/2005 | US20050069153 Adjustable speaker systems and methods |
| 03/30/2005 | CN1602583A Communication device with active equalization and method therefor |
| 03/24/2005 | US20050063554 System and method for audio system configuration |
| 03/17/2005 | US20050060049 Low distortion audio equalizer |
| 03/17/2005 | US20050058303 Dynamic bass boost apparatus and method |
| 03/17/2005 | DE10330009A1 Loudspeaker-amplifier combination with adaptive tone control, varies amplifier power in terms of impedance/frequency characteristic curve |
| 03/16/2005 | CN1193508C Automatic gain control of receiver and its method |
| 03/15/2005 | US6868162 Method and apparatus for automatic volume control in an audio system |
| 03/15/2005 | CA2159976C Method and apparatus for leveling audio output |
| 03/01/2005 | US6861216 Detecting complementary DNA fragments utilizing a combination of the conventional DNA micro-array and the conventional radiation image storage panel; almost free from noises caused by inadvertently fixed non-complementary DNA fragments |
| 02/24/2005 | US20050041814 Method and related apparatus for stereo vocal cancellation |
| 02/16/2005 | EP1507439A2 Apparatus and method for controlling speakers |
| 02/09/2005 | CN1578287A 波形均衡器 Waveform equalizer |
| 02/03/2005 | WO2005011111A2 Audio conditioning apparatus, method and computer program product |
| 02/02/2005 | CN1575558A Apparatus and method of controlling signal levels |
| 01/25/2005 | US6847261 Automatic gain control method and device |
| 01/20/2005 | WO2005006566A2 Adaptive audio communication code |
| 01/20/2005 | US20050013450 Waveform equalizer |
| 01/20/2005 | US20050013443 Audio correcting apparatus |
| 01/18/2005 | CA2344871C Method for in-situ measuring and in-situ correcting or adjusting a signal process in a hearing aid with a reference signal processor |
| 01/13/2005 | WO2005004114A1 System and method for audio signal processing |
| 01/12/2005 | EP1495562A2 Fast estimation of weak bio-signals using novel algorithms for generating multiple additional data frames |
| 01/06/2005 | WO2005002075A1 Receiving circuit for tv signals |
| 12/30/2004 | US20040264713 Adaptive audio communication code |
| 12/30/2004 | US20040264705 Context aware adaptive equalization of user interface sounds |