Circuit and method for communicating digital audio information

Details Circuit and method for communicating digital audio information Circuit and method for communicating digital audio information

1991-10-01

1993-05-25

Ng, Jin F.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

375 25, 3701101, 3701104, H04H 500

Patent

active

052147053

ABSTRACT:
An interface circuit (16, 44) is provided for communicating a plurality of demodulated digital audio values in a predetermined serial data bus protocol between a digital source (12) and a digital sink (46). Each of the plurality of digital audio values contains either left or right channel audio information and control values. The serial data bus protocol is formed by the interface circuit (16, 44) by transmitting a left channel information value of a predetermined demodulated digital audio value, a right channel information value of the predetermined demodulated digital audio value, and then a byte of control information formed from both the left and right channel control values.

REFERENCES:
patent: 4787085 (1988-11-01), Suto et al.
patent: 4821260 (1989-04-01), Klank et al.
patent: 5003557 (1991-03-01), Fujiyama
patent: 5051799 (1991-09-01), Paul et al.
"AES Recommended Practice for Digital Audio Engineering-Serial Transmission Format for Linearly Represented Digital Audio Data" published by Audio Engineering Society in 1985, pp. 1-9.
"CP-340 Digital Audio Interface" published by the Standards of Electronic Industries Association of Japan in Sep. of 1987, pp. 1-32.

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