Process for authentication of smart cards, and device for use of the process

United States of America Patent

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Oct 8, 1996
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app pub date
Sep 27, 1993
filing date
Nov 8, 1989

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Abstract

The device of the invention for a pay-television system comprises an emitter and several receivers using 'smart cards'. In addition to the unscrambling control signals, the emitter sends encrypted authentication messages to which a correct response can be given only by the receivers where valid cards are used.

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Patent Owner(s)

Patent Owner	Address
LABORATOIRE EUROPEEN DE RECHERCHES ELECTRONIQUES AVANCEES SOCIETE EN NOM COLLECTIF	COURBEVOIE

International Classification(s)

H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Diehl, Eric	Neudorf, FR	97	1903
Hamon, Joel	Lipsheim, FR	11	416
Leduc, Michel	Boersch, FR	24	654

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Process for authentication of smart cards, and device for use of the process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08127092

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PATENT NO	5563948
SERIAL NO	08127092
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08127092

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