Surround audio apparatus

Details Surround audio apparatus Surround audio apparatus

1991-07-03

1993-10-26

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

381 63, H04S 502

Patent

active

052573133

ABSTRACT:
A surround audio apparatus is comprised of an input terminal to which a stereo audio signal encoded for surround reproduction is supplied, an analog-to-digital converter for converting the stereo audio signal supplied to the input terminal into a digital audio signal, a digital signal processor for decoding the digital audio signal converted by the analog-to-digital converter in a surround stereo reproduction fashion to output a digital surround signal, a digital-to-analog converter for converting the digital surround signal from the digital signal processor into an analog surround signal, and an output terminal from which the analog surround signal from the digital-to-analog converter is delivered.

REFERENCES:
patent: 4856064 (1989-08-01), Iwamatsu
patent: 4920569 (1990-04-01), Yoshio
patent: 4933768 (1990-06-01), Ishikawa et al.
patent: 4998281 (1991-03-01), Sakata
patent: 5027687 (1991-07-01), Iwamatsu
patent: 5065433 (1991-11-01), Ida et al.
Audio Magazine, vol. 72, No. 11, Nov. 1988, pp. 82-92.
Fernseh-Und Kino-Technik, vol. 36, No. 2, Feb. 1982, pp. 62-68.
Communication dated Jul. 3, 1992.

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