Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic
Reexamination Certificate
2006-05-30
2011-10-18
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Quadrasonic
C381S022000, C381S019000, C381S020000, C704S500000, C704S501000
Reexamination Certificate
active
08041041
ABSTRACT:
A system for generating stereo-channel audio signals with surround information is disclosed. The system includes a surround mapping unit configured to receive signals from a number of audio channels and generate a pair of stereo-channel audio signals based on the audio channels. The pair of stereo-channel audio signals includes binaural and spatial information. The system also includes a stereo-channel encoder configured to receive and encode the pair of stereo-channel audio signals from the surround mapping unit thereby generating a pair of encoded stereo-channel audio signals. The system further includes a stereo-channel decoder configured to receive and decode the pair of encoded stereo-channel audio signals thereby obtaining the pair of stereo-channel audio signals. The pair of stereo-channel audio signals are capable of being used to generate surround effect.
REFERENCES:
patent: 6307941 (2001-10-01), Tanner et al.
patent: 2004/0076301 (2004-04-01), Algazi et al.
patent: 2006/0177078 (2006-08-01), Chanda et al.
patent: 2008/0002842 (2008-01-01), Neusinger et al.
Baumgarte and Faller, Binaural Cue Coding-Part I: Psychoacoustic Fundamentals and Desing Principles, IEEE Transactions on Speech and Audio Processing, vol. 11, No. 6, Nov. 2003.
Hu Norman
Luo Fa-Long
Wan Xiang
Wei Zhenyu
Anyka (Guangzhou) Microelectronics Technology Co., Ltd.
Chin Vivian
Fahnert Friedrich W
SNR Denton US LLP
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