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Summary: United States Patent [19]
Adelson
[11] Patent Number: 4,939,515
[45] Date of Patent: Jul. 3, 1990
[54] DIGITAL SIGNAL ENCODING AND
DECODING APPARATUS
[75] Inventor: Edward H. Adelson, Cambridge,
Mass.
[73] Assignee: General Electric Company,
Princeton, N.J.
[21] Appl. No.: 252,223
[22] Filed: Sep. 30, 1988
[51] Int. Cl.5
.................... H03M 7/00; H04N 11/04
[52] US. Cl. .................................. 341/51; 358/13
[38] Field of Search ... 341/51, 87; 360/32; 358/12, 13
[56] References Cited
U.S. PATENT DOCUMENTS
3,304,372 2/1967 Filipowsky et al. .
4,134,134 1/1979 Lux ........................... 341/87
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