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Class Information
Number: 381/1
Name: Electrical audio signal processing systems and devices > Binaural and stereophonic
Description: Subject matter where there are two or more independent sound signals which are to be separately reproduced so as to create a sense of depth.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623669 |
Simplified amplifier providing sharing of music with enhanced spatial presence through multiple headphone jacks |
Nov. 24, 2009 |
| 7616767 |
Method and device for determining acoustical transfer impedance |
Nov. 10, 2009 |
| 7606372 |
Device and method for determining a reproduction position |
Oct. 20, 2009 |
| 7593533 |
Sound system and method of sound reproduction |
Sep. 22, 2009 |
| 7583805 |
Late reverberation-based synthesis of auditory scenes |
Sep. 1, 2009 |
| 7564982 |
Two channel audio surround sound circuit |
Jul. 21, 2009 |
| 7558393 |
System and method for compatible 2D/3D (full sphere with height) surround sound reproduction |
Jul. 7, 2009 |
| 7555130 |
Acoustic correction apparatus |
Jun. 30, 2009 |
| 7551741 |
System and method for 3D sound processing |
Jun. 23, 2009 |
| 7522733 |
Systems and methods of spatial image enhancement of a sound source |
Apr. 21, 2009 |
| 7515935 |
Method and system for flexible FM tuning |
Apr. 7, 2009 |
| 7512246 |
Stereo sounding method, stereo sounding system, and musical tone generation control system |
Mar. 31, 2009 |
| 7502477 |
Audio reproducing apparatus |
Mar. 10, 2009 |
| 7492907 |
Multi-channel audio enhancement system for use in recording and playback and methods for providing same |
Feb. 17, 2009 |
| 7466831 |
Audio processing |
Dec. 16, 2008 |
| 7460676 |
Headphone driving circuit |
Dec. 2, 2008 |
| 7460673 |
Point source speaker system |
Dec. 2, 2008 |
| 7443987 |
Discrete surround audio system for home and automotive listening |
Oct. 28, 2008 |
| 7440575 |
Equalization of the output in a stereo widening network |
Oct. 21, 2008 |
| 7428308 |
Transmitting and reproducing stereophonic audio signals |
Sep. 23, 2008 |
| 7412380 |
Ambience extraction and modification for enhancement and upmix of audio signals |
Aug. 12, 2008 |
| 7412220 |
Signal processing |
Aug. 12, 2008 |
| 7391877 |
Spatial processor for enhanced performance in multi-talker speech displays |
Jun. 24, 2008 |
| 7388959 |
Harmonic generator and pre-amp |
Jun. 17, 2008 |
| 7382885 |
Multi-channel audio reproduction apparatus and method for loudspeaker sound reproduction using position adjustable virtual sound images |
Jun. 3, 2008 |
| 7369666 |
Audio reproducing system |
May. 6, 2008 |
| 7366312 |
Artificial stereophonic circuit and artificial stereophonic device |
Apr. 29, 2008 |
| 7346172 |
Auditory alert systems with enhanced detectability |
Mar. 18, 2008 |
| 7340272 |
Mobile communication terminal having a three-dimensional surround sound effect and its control method |
Mar. 4, 2008 |
| 7336792 |
Virtual acoustic image localization processing device, virtual acoustic image localization processing method, and recording media |
Feb. 26, 2008 |
| 7327848 |
Visualization of spatialized audio |
Feb. 5, 2008 |
| 7302061 |
Dual-tweeter loudspeaker |
Nov. 27, 2007 |
| 7292697 |
Audio reproducing system |
Nov. 6, 2007 |
| 7272073 |
Method and device for generating information relating to the relative position of a set of at least three acoustic transducers |
Sep. 18, 2007 |
| 7263193 |
Crosstalk canceler |
Aug. 28, 2007 |
| 7254238 |
Method and circuit for headset listening of an audio recording |
Aug. 7, 2007 |
| 7254239 |
Sound system and method of sound reproduction |
Aug. 7, 2007 |
| 7251333 |
Method and apparatus for creating a virtual third channel in a two-channel amplifier |
Jul. 31, 2007 |
| 7242782 |
Audio signal processing circuit |
Jul. 10, 2007 |
| 7218240 |
Synthetically generated sound cues |
May. 15, 2007 |
| 7203320 |
Sub-harmonic generator and stereo expansion processor |
Apr. 10, 2007 |
| 7200236 |
Multi-channel audio enhancement system for use in recording playback and methods for providing same |
Apr. 3, 2007 |
| 7177431 |
Dynamic decorrelator for audio signals |
Feb. 13, 2007 |
| 7171002 |
Methods and apparatus for sub-harmonic generation, stereo expansion and distortion |
Jan. 30, 2007 |
| 7167567 |
Method of processing an audio signal |
Jan. 23, 2007 |
| 7167879 |
Network AV system |
Jan. 23, 2007 |
| 7146010 |
Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system |
Dec. 5, 2006 |
| 7146018 |
Multichannel acoustic signal reproducing apparatus |
Dec. 5, 2006 |
| 7123724 |
Sound system |
Oct. 17, 2006 |
| 7088827 |
Reconfigurable speaker system |
Aug. 8, 2006 |
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