Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Reexamination Certificate
2006-05-12
2009-06-09
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Stereo speaker arrangement
C381S077000, C381S089000, C381S099000, C381S308000
Reexamination Certificate
active
07545946
ABSTRACT:
A method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges provides a low cost alternative to present external surround array systems. The overlapping frequency range of a pair of speaker drivers, generally a low-frequency and a high-frequency driver, is supplied with a surround channel information in a controlled phase relationship such that the surround channel information is propagated in a directivity pattern substantially differing from that of main channel information supplied to the low and high frequency drivers. The main channel information is generally directed at a listening area, while the surround channel information is directed away from the listening area so that the surround channel information is heard as a diffuse reflected field. An electronic network provides for control of the surround channel phase relationship and combining of main and surround signals via either an active or passive circuit.
REFERENCES:
patent: 4039755 (1977-08-01), Berkovitz
patent: 5005201 (1991-04-01), Rumreich et al.
patent: 5301237 (1994-04-01), Fosgate
patent: 5598480 (1997-01-01), Kim
patent: 5680464 (1997-10-01), Iwamatsu
patent: 5809150 (1998-09-01), Eberbach
patent: 5870484 (1999-02-01), Greenberger
patent: 6057659 (2000-05-01), Akiyama et al.
patent: 6373955 (2002-04-01), Hooley
patent: 6498852 (2002-12-01), Grimani
patent: 6665409 (2003-12-01), Rao
patent: 6778672 (2004-08-01), Breed
patent: 6937737 (2005-08-01), Polk
patent: 7123731 (2006-10-01), Cohen et al.
patent: 7382885 (2008-06-01), Kim et al.
patent: 2001/0038702 (2001-11-01), Lavoie et al.
patent: 2004/0013271 (2004-01-01), Moorthy
patent: 2004/0151325 (2004-08-01), Hooley et al.
patent: 2004/0196405 (2004-10-01), Spinelli
patent: 2005/0041530 (2005-02-01), Goudie et al.
patent: 2005/0175194 (2005-08-01), Anderson
patent: 2005/0177256 (2005-08-01), Shintani et al.
patent: 2005/0226425 (2005-10-01), Polk
patent: 2006/0049889 (2006-03-01), Hooley
patent: 2007/0183608 (2007-08-01), Willems
Murray, John, “Understanding Line Array Systems”, Live Sound International, prosoundweb.com, 2006.
Polk, Matthew S. “SDA Surround Technology White Paper”, Polk Audio, Nov. 2005.
Product Brochure, Yamaha YSP-1 Digital Sound Projector, 2005.
Product Brochure, Yamaha YSP-1000 Digital Sound Projector, 2005.
Chin Vivian
Cirrus Logic Inc.
Harris Andrew M.
Mitch Harris Atty at Law, LLC
Suthers Douglas J
LandOfFree
Method and system for surround sound beam-forming using the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for surround sound beam-forming using the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for surround sound beam-forming using the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144978