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Class Information
Number: 381/104
Name: Electrical audio signal processing systems and devices > Including amplitude or volume control
Description: Subject matter including means for adjusting or setting the signal level or for obtaining a substantially constant amplitude output signal for a range of variations of the amplitude of an input signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7415119 |
Method for hierarchical audio conflict control |
Aug. 19, 2008 |
| 7409066 |
Method of adjusting filter parameters and an associated playback system |
Aug. 5, 2008 |
| 7409067 |
Method and apparatus for adjusting frequency characteristic of signal |
Aug. 5, 2008 |
| 7406178 |
Efficient digital audio automatic gain control |
Jul. 29, 2008 |
| 7403626 |
Level adjustment apparatus |
Jul. 22, 2008 |
| 7403828 |
System and method for transmitting and distributing audio or video data over a network system having multiple receivers |
Jul. 22, 2008 |
| 7394906 |
Device for automatically controlling audio volume based on vehicle speed and method for operating the same |
Jul. 1, 2008 |
| 7391877 |
Spatial processor for enhanced performance in multi-talker speech displays |
Jun. 24, 2008 |
| 7391875 |
Peak-limiting mixer for multiple audio tracks |
Jun. 24, 2008 |
| 7391871 |
Method and system for PCM audio ramp and decay function |
Jun. 24, 2008 |
| 7390960 |
Electronic signal processor |
Jun. 24, 2008 |
| 7371175 |
Method and system for enhanced audio communications in an interactive environment |
May. 13, 2008 |
| 7369906 |
Digital audio signal processing |
May. 6, 2008 |
| 7349548 |
Electronic apparatus and control method thereof |
Mar. 25, 2008 |
| 7349547 |
Noise masking communications apparatus |
Mar. 25, 2008 |
| 7343019 |
Streaming normalization |
Mar. 11, 2008 |
| 7340069 |
System and method for split automatic gain control |
Mar. 4, 2008 |
| 7339503 |
Adaptive asynchronous sample rate conversion |
Mar. 4, 2008 |
| 7336130 |
Attenuator, variable gain amplifier using the same, and electronic equipment |
Feb. 26, 2008 |
| 7337026 |
Digital audio volume control |
Feb. 26, 2008 |
| RE40054 |
Video-assisted audio signal processing system and method |
Feb. 12, 2008 |
| 7330554 |
Volume control apparatus and method thereof |
Feb. 12, 2008 |
| 7330551 |
Apparatus and method for controlling input signal level |
Feb. 12, 2008 |
| 7319764 |
Method and apparatus for controlling volume |
Jan. 15, 2008 |
| 7317800 |
Apparatus and method for processing an audio signal to compensate for the frequency response of loudspeakers |
Jan. 8, 2008 |
| 7315625 |
Sound apparatus, method of changing sound characteristics, and data recording medium on which a sound correction program |
Jan. 1, 2008 |
| 7305346 |
Audio processing method and audio processing apparatus |
Dec. 4, 2007 |
| 7298855 |
Volume circuit using resistive ladder circuits |
Nov. 20, 2007 |
| 7298852 |
Dynamic power sharing in a multi-channel sound system |
Nov. 20, 2007 |
| 7283879 |
Dynamic normalization of sound reproduction |
Oct. 16, 2007 |
| 7278101 |
Controlling audio volume in processor-based systems |
Oct. 2, 2007 |
| 7272235 |
Method and apparatus for audio normalization |
Sep. 18, 2007 |
| 7269264 |
Method for reproducing audio signal from at least two different sources |
Sep. 11, 2007 |
| 7251337 |
Volume control in movie theaters |
Jul. 31, 2007 |
| 7248709 |
Dynamic volume control |
Jul. 24, 2007 |
| 7242784 |
Dynamic gain control of audio in a communication device |
Jul. 10, 2007 |
| 7242783 |
Audio limiting circuit |
Jul. 10, 2007 |
| 7228271 |
Telephone apparatus |
Jun. 5, 2007 |
| 7224981 |
Speech recognition of mobile devices |
May. 29, 2007 |
| 7215262 |
Digital signal processing apparatus and digital signal processing method |
May. 8, 2007 |
| 7216221 |
Method and system for unified audio control on a personal computer |
May. 8, 2007 |
| 7203325 |
Audio processing device |
Apr. 10, 2007 |
| 7200239 |
Acoustic apparatus having balance adjustment |
Apr. 3, 2007 |
| 7194096 |
Method and apparatus for adaptively pre-shaping audio signal to accommodate loudspeaker characteristics |
Mar. 20, 2007 |
| 7190292 |
Input level adjust system and method |
Mar. 13, 2007 |
| 7187774 |
Mute switch |
Mar. 6, 2007 |
| 7181021 |
Apparatus for acoustically improving an environment |
Feb. 20, 2007 |
| 7177432 |
Sound processing system with degraded signal optimization |
Feb. 13, 2007 |
| 7164774 |
Amplifier with limiter |
Jan. 16, 2007 |
| 7142678 |
Dynamic volume control |
Nov. 28, 2006 |
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