Configurable filter for processing television audio signals

Details Configurable filter for processing television audio signals Configurable filter for processing television audio signals

2009-05-26

2010-11-02

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Quadrasonic

C381S002000, C381S004000, C381S022000, C348S481000, C348S484000, C348S485000, C348S738000

Reexamination Certificate

active

07826621

ABSTRACT:
A television audio signal encoder includes a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix 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. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission.

REFERENCES:
patent: 5796842 (1998-08-01), Hanna
patent: 6259482 (2001-07-01), Easley et al.

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