TELEVISION SIGNAL TRANSMISSION SYSTEM WITH TWO LEVELS OF SYMBOL ENCODING - Patent 0575530

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EP 0 575 530 A1

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(43)	Date of publication:
	29.12.1993 Bulletin 1993/52

(21)	Application number: 92908945.0

(22)	Date of filing: 26.02.1992

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International Patent Classification (IPC):

H04N 5/ 44^{( . )}
H04N 7/ 26^{( . )}

H04N 7/ 24^{( . )}
H04N 7/ 32^{( . )}

(86)	International application number:
	PCT/US1992/001560

(87)	International publication number:
	WO 1992/017030 (01.10.1992 Gazette 1992/25)

(84)	Designated Contracting States:
	BE DE FR GB NL SE

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Priority:

12.03.1991 US 19910667836

(71)	Applicant: ZENITH ELECTRONICS CORPORATION
	Glenview Illinois 60025-2493 (US)

(72)	Inventor:
	CITTA, Richard, W. Oak Park, IL 60302 (US)

(74)	Representative: Baillie, Iain Cameron
	c/o Ladas & Parry Altheimer Eck 2 D-80331 München D-80331 München (DE)

(54)	TELEVISION SIGNAL TRANSMISSION SYSTEM WITH TWO LEVELS OF SYMBOL ENCODING