Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic
Reexamination Certificate
2001-05-30
2010-02-23
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Quadrasonic
C381S027000
Reexamination Certificate
active
07668317
ABSTRACT:
The method and system of present invention sequences audio post-processing algorithms to simulate live or theater sound. An audio signal is selectively post-processed according to equipment availability and listener preferences. Downmixing or Prologic algorithms are applied to a signal arriving at sound system. A listener inputs their speaker configuration to a player console. Desired post-processing effects are likewise indicated to the console. For instance, if surround sound equipment is both available and selected, then surround portions of the audio signal are parsed to surround speakers. Bass management techniques then transfer low frequency channels of the signal to compatible speakers. VES or DCS algorithms further manipulate the surround portion of the signal to create an illusion of immersion, and a center channel equalizer balances the signal playback. Alternatively, the post-processed signal is transmitted to a headphone set.
REFERENCES:
patent: 3943287 (1976-03-01), Gravereaux et al.
patent: 4149031 (1979-04-01), Cooper
patent: 5278909 (1994-01-01), Edgar
patent: 5291557 (1994-03-01), Davis et al.
patent: 5530760 (1996-06-01), Paisley
patent: 5594800 (1997-01-01), Gerzon
patent: 5757927 (1998-05-01), Gerzon et al.
patent: 5825894 (1998-10-01), Shennib
patent: 5850455 (1998-12-01), Arnold et al.
patent: 6167140 (2000-12-01), Watanabe
patent: 6259795 (2001-07-01), McGrath
patent: 6442278 (2002-08-01), Vaudrey et al.
patent: 6470087 (2002-10-01), Heo et al.
patent: 6694027 (2004-02-01), Schneider
patent: 6760448 (2004-07-01), Gundry
patent: 6766028 (2004-07-01), Dickens
patent: 7177432 (2007-02-01), Eid et al.
patent: 2004/0120537 (2004-06-01), Takei
Du Robert Weixiu
Yang Chinping Q.
Chin Vivian
Lao Lun-See
Sony Corporation
Sony Electronics Inc.
Wood Herron & Evans LLP
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