Electrical audio signal processing systems and devices – Binaural and stereophonic – Center channel
Patent
1994-01-21
1997-03-11
Brinich, Stephen
Electrical audio signal processing systems and devices
Binaural and stereophonic
Center channel
381 2, H04S 300
Patent
active
056109857
ABSTRACT:
System for digital transmission of left and right stereo signals and a center signal through left and right stereo channels and an auxiliary channel, respectively. In order to substantially reduce the extra bandwidth necessary to transmit the center signal while maintaining the possibility of a proper reproduction of the center signal, a selection of a first and a second centerpart signal is provided, the frequency spectrum thereof being respectively located in a frequency range of the center signal below and above a cut-off frequency, the cut-off frequency being related to the transmission capacity of the auxiliary channel, the first of these centerpart signals being transmitted through the auxiliary channel for reproduction at the receiver side through a center speaker unit, at least the second of these centerpart signals being transmitted together with the left and right stereo signals through the left and right stereo channels, respectively, the second centerpart signal being combined with the left and right stereo signals into, respectively, left/center and right/center signals for reproduction at the receiver side through left and right speaker units, simultaneously with the reproduction of the first centerpart signal through the center speaker unit.
REFERENCES:
patent: 4024344 (1977-05-01), Dolby et al.
patent: 4408095 (1983-10-01), Ariga et al.
patent: 4980915 (1990-12-01), Ishikawa
patent: 5113447 (1992-05-01), Hatley et al.
patent: 5161210 (1992-11-01), Druyvesteyn et al.
patent: 5251260 (1993-10-01), Gates
"Matrixing of Bit Rate Reduced Audio Signals" by Ten Kate et al, Proc. ICASSP 1992, Mar. 23-16, vol. 2, pp. II-205-208.
"High Definition Sound For High Definition Television", by D. Mears, Proc. of the AES 9th International Conference, 1991, pp. 187-215.
Meares, "High Definition Sound for High Definition Television", AES 9th International Conference, pp. 187-215.
Brinich Stephen
Goodman Edward W.
U.S. Philips Corporation
LandOfFree
Digital 3-channel transmission of left and right stereo signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital 3-channel transmission of left and right stereo signals , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital 3-channel transmission of left and right stereo signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-450181