Configurable recursive digital filter for processing...

Details Configurable recursive digital filter for processing... Configurable recursive digital filter for processing...

2005-08-16

2010-10-26

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

C700S094000, C348S484000

Reexamination Certificate

active

07822210

ABSTRACT:
A television audio signal encoder includes a device that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The device also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal. The set of filter coefficients is applied to the difference signal by a single multiplier in a recursive manner to prepare the difference signal for transmission.

REFERENCES:
patent: 4747140 (1988-05-01), Gibson
patent: 6037993 (2000-03-01), Easley
patent: 6118879 (2000-09-01), Hanna
patent: 6259482 (2001-07-01), Easley et al.
patent: 6588867 (2003-07-01), Darr
patent: 7277860 (2007-10-01), Srinivas et al.
patent: 7532728 (2009-05-01), Venkatesan et al.
patent: 2003/0161477 (2003-08-01), Wu et al.
PCT International Search Report for related PCT Application No. PCT/US2005/29108, 3 pages.
PCT Written Opinion of the International Searching Authority for related PCT Application No. PCT/US2005/29108, 5 pages.

Affiliated with

Also associated with

Rating

Configurable recursive digital filter for processing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Configurable recursive digital filter for processing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Configurable recursive digital filter for processing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4169529