Method for communicating a value over a transmission medium and

Details Method for communicating a value over a transmission medium and Method for communicating a value over a transmission medium and

1994-06-29

1997-04-01

MacDonald, Allen R.

395 213, 395 22, G10L 302, G10L 900

Patent

active

056175060

ABSTRACT:
A method and apparatus for a 2:1 compression of a digital audio signal including 1) a compression operation for compressing a sixteen bit sample of the audio signal as both an exact value and a delta value, and 2) a regeneration operation for regenerating the compressed exact and delta values once again into a sixteen bit word. The regenerated exact and delta values are then compared against the original sample. Whichever regenerated value most closely matches the original sample has its corresponding compressed value encoded onto a storage medium.

REFERENCES:
patent: 5184317 (1993-02-01), Pickett
Davis, P. J., The Mathematics of Matrices, 1965, Blaisdell Publishing Co., pp. 125-170.
Yu, T.H. and Mitra, S.K., "A Novel DPCM Algorithm Using A Nonlinear Operator", Jan., 1996, pp. 871-875 IEEE; Conf. on Image Processing.
Schubert, T.J., "Simulation of Effects of Companding," Feb. 1994, IEEE Transactions on Education, pp. 47-50.

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