Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent
1997-02-06
1998-12-15
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Hearing aid
381 18, H04S 300
Patent
active
058504567
ABSTRACT:
A 7-channel encoder and corresponding decoder is disclosed for encoding a 7-channel signal into a transmission signal which is backwards compatible, so that prior art MPEG-1 2-channel decoders are capable of decoding the transmission signal into a compatible stereo signal, prior art MPEG-2 5-channel decoders are capable of decoding the transmission signal into a compatible 5-channel signal. Further, a 7-channel decoder is disclosed for decoding the transmission signal into a 7-channel signal. (FIG. 2).
REFERENCES:
patent: 4620311 (1986-10-01), Immink
patent: 5481643 (1996-01-01), Ten Kate et al.
patent: 5506907 (1996-04-01), Ueno et al.
patent: 5544247 (1996-08-01), Ten Kate
"A New Surround-Stereo-Surround Coding Technique" W. Ten Kate et al, J. Audio Eng. Soc. vol. 40, No. 5, May 1992, pp. 376-382.
Matrix of Bit Rate Reduced Audio Signals, W.R. Ten Kate et al, Proc. of the ICASSP, 1992, Mar. 23-26, pp. II-205--II-208.
ISO/IEC International Standard is 11172-3, Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Mediu up to about 1.5 Mbits/part 3: Audio.
ISO/IEC International Standard IS 13818-3, Information Technology-coding of Moving Pictures and Associated Audio, Part 3: Audio.
Ten Kate Warner R. T.
Van De Kerkhof Leon M.
Belk Michael E.
Isen Forester W.
U.S. Philips Corporation
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