VIEWER IDENTIFICATION APPARATUS FOR USE IN A BROADCAST AUDIENCE MEASUREMENT - Patent 1186127

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EP 1 186 127 A1

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(43)	Date of publication:
	13.03.2002 Bulletin 2002/11

(21)	Application number: 00918237.9

(22)	Date of filing: 22.03.2000

(51)	International Patent Classification (IPC)⁷: H04H 9/00

(86)	International application number:
	PCT/US0007/572

(87)	International publication number:
	WO 0072/484 (30.11.2000 Gazette 2000/48)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

20.05.1999 US 315286

(71)	Applicant: Nielsen Media Research, Inc.
	Schaumburg, IL 60173-2076 (US)

(72)	Inventors:
	LU, Daozheng Dunedin, FL 34698 (US) COOK, Barry New Canaan, CT 06840 (US)

(74)	Representative: Lawrence, John
	Barker Brettell 138 Hagley RoadEdgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)

(54)	VIEWER IDENTIFICATION APPARATUS FOR USE IN A BROADCAST AUDIENCE MEASUREMENT