Method for reducing data in a multi-channel data transmission

Details Method for reducing data in a multi-channel data transmission Method for reducing data in a multi-channel data transmission

1994-05-04

1996-04-23

Chin, Stephen

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

370118, 381 29, 348409, H04B 166, H04N 712

Patent

active

055110932

ABSTRACT:
In a method for reducing data in a multi-channel data transmission, existing cross-relations between the signal channels are determined with due consideration of the transit-time difference. Upon the data transmission, a signal channel, the predictor coefficients and transit-time differences obtained from the cross-relations ascertained, and the prediction error are transmitted. At the receiver, the signal of the second channel is reconstructed from the transmitted signal channel, the predictor coefficients, the transit-time difference, and the prediction error. In this way, the amount of data to be transmitted in the case of multi-channel video or audio signals is reduced.

REFERENCES:
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patent: 4815132 (1989-03-01), Minami
patent: 4975958 (1990-12-01), Hanada et al.
patent: 5253275 (1993-10-01), Yurt et al.
D. Bauer et al., "Statistical Properties of High Quality Stereo Signals in The Time Domain," International Conference on Acoustics, Speech, and Signal Processing, vol. 3, pp. 2045-2048 (1989).
S. Minami et al., "Stereophonic ADPCM Voice Coding Method." International Conference on Acoustics, Speech, and Signal Processing, vol. 2, pp. 1113-1116 (1990).
James D. Johnston, Perceptual Transform Coding of Wideband Stereo Signals; IEEE, Feb. 1989, pp. 1993-1996.
Robbert G. van der Waal et al., Subband Coding of Stereophonic Digital Audio Signals, IEEE, Jul. 1991, pp. 3601-3604.
Hendrik Fuchs, Report on the MPEG/Audio Subjective Listening Tests in Hannover, Nov. 1991.

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