Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Reexamination Certificate
2004-12-14
2011-11-01
Faulk, Devona E. (Department: 2614)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
C381S003000, C381S015000, C381S016000, C381S106000
Reexamination Certificate
active
08050412
ABSTRACT:
A demodulator (10) converts television signals to video baseband signals and audio baseband signals including stereo signals representing a right channel signal value and a left channel signal value. A DSP (60) recursively finds a preferred coefficient value for a scaling that reduces stereo separation due to amplitude variation of the right and left channel signal values. The preferred coefficient value is thereafter used for scaling the right and left channel signal values.
REFERENCES:
patent: 6037993 (2000-03-01), Easley
patent: 6118879 (2000-09-01), Hanna
patent: 6122380 (2000-09-01), Pedlow, Jr.
patent: 6259482 (2001-07-01), Easley et al.
patent: 6281813 (2001-08-01), Vierthaler et al.
patent: 6295362 (2001-09-01), Zhang
patent: 6492913 (2002-12-01), Vierthaler et al.
patent: 6535608 (2003-03-01), Taira
patent: 6552753 (2003-04-01), Zhurbinskiy et al.
patent: 6608902 (2003-08-01), Jackson et al.
patent: 6664849 (2003-12-01), Taura et al.
patent: 6859238 (2005-02-01), Wu
patent: 2003/0091194 (2003-05-01), Teichmann et al.
patent: 2003/0160905 (2003-08-01), Wu
patent: 2003/0162517 (2003-08-01), Wu
patent: 0 251 703 (1988-01-01), None
patent: 05118415 (1993-05-01), None
patent: 06334618 (1994-02-01), None
European Search Report, Oct. 7, 2004.
OET Bulletin No. 60, Revision A: “Multichannel Television Sound Transmission and Audio Processing Requirements for the BTSC System” Feb. 1986, Office of Engineering and Technology, XP002298198.
Broadcom Corporation
Faulk Devona E.
McAndrews Held & Malloy Ltd.
Monikang George
LandOfFree
Scaling adjustment to enhance stereo separation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scaling adjustment to enhance stereo separation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling adjustment to enhance stereo separation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4259187