Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent
1993-12-27
1997-02-25
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
395 238, 395 212, 395 214, H04H 500, G10L 106
Patent
active
056066180
ABSTRACT:
Reproduction accuracy of, for example a digital stereo audio signal, is improved by transmitting sample data as sub-signals such as frequency subband signals. In one or more subbands, corresponding components such as left and right stereo channels are combined so that only one composite signal is transmitted per subband. An indicator signal is transmitted, indicating which subbands are combined. Scale factor signals for all subbands, and for the relative intensity of the respective subband signals which were combined, may also be transmitted. In the receiver a subband signal is derived for each channel from the composite signal, before synthesis of the full channel signals which will be reproduced.
REFERENCES:
patent: 3624298 (1969-03-01), Davis
patent: 4464782 (1984-08-01), Beraud et al.
patent: 4622689 (1986-11-01), Hobrough
patent: 4680796 (1987-07-01), Blackmer et al.
patent: 4866774 (1989-09-01), Klayman
patent: 4896362 (1990-01-01), Veldhuis et al.
patent: 4899384 (1990-02-01), Crouse et al.
patent: 4941177 (1990-07-01), Mandell et al.
patent: 5067157 (1991-11-01), Ishida et al.
patent: 5109417 (1992-04-01), Fielder et al.
patent: 5142656 (1992-08-01), Fielder et al.
patent: 5222189 (1993-06-01), Fielder
patent: 5341457 (1994-08-01), Hall, II et al.
"The Critical Band Coder--Digital Encoding of Speech Signals Based on the Perceptual Requirements of the Auditory System" by Michael A. Krasner, IEEE, 1980, pp. 327-331.
"Low bit-rate coding of high-quality audio signals--An introduction to the MASCAM system" by G. Theile, G. Stoll and M. Link; EBU Review--Technical, No. 230 (Aug. 1988), pp. 71-94.
Dehery Y. F.
Lokhoff Gerardus C. P.
Stoll G.
Theile G.
Isen Forester W.
Treacy David R.
U.S. Philips Corporation
LandOfFree
Subband coded digital transmission system using some composite s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Subband coded digital transmission system using some composite s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subband coded digital transmission system using some composite s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1979760