IMPROVED ESTIMATOR FOR RECOVERING HIGH FREQUENCY COMPONENTS FROM COMPRESSED IMAGE DATA - Patent 0947101

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EP 0 947 101 A1

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(43)	Date of publication:
	06.10.1999 Bulletin 1999/40

(21)	Application number: 97950916.0

(22)	Date of filing: 16.12.1997

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International Patent Classification (IPC):

H04N 7/ 30^{( . )}
H03M 7/ 30^{( . )}
H04N 7/ 26^{( . )}

G06T 9/ 00^{( . )}
H04N 1/ 41^{( . )}

(86)	International application number:
	PCT/US1997/022685

(87)	International publication number:
	WO 1998/028917 (02.07.1998 Gazette 1998/26)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

20.12.1996 US 19960033706P
14.11.1997 US 19970066637

(71)	Applicant: Westford Technology Corporation
	Westford, MA 01886 (US)

(72)	Inventor:
	DECEGAMA, Angél, L. Westford, MA 01886 (US)

(74)	Representative: Downing, Michael Philip
	Fry Heath & Spence, The Old College, 53 High Street Horley, Surrey RH6 7BN Horley, Surrey RH6 7BN (GB)

(54)	IMPROVED ESTIMATOR FOR RECOVERING HIGH FREQUENCY COMPONENTS FROM COMPRESSED IMAGE DATA