High speed signal processing smart card
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United States of America Patent
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Jul 15, 2003
Issued Date -
N/A
app pub date -
Jan 30, 1997
filing date -
Aug 19, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
An access control system for signal processing applications includes an integrated circuit (IC) card, or 'smart' card, that provides both security control and data descrambling functions. A security control processor in the smart card IC performs functions such as entitlement management and key generation. The smart card IC also includes a descrambler for processing data, such as video data, at high data rates. Mechanical characteristics of the smart card satisfy the ISO standard 7816-1. In addition, the interface to the smart card is via eight-terminals arranged on the surface of the card in accordance with ISO standard 7816-2. The eight terminal interface provides both high speed data I/O (input and output) required for data descrambling and ISO standard low speed serial data I/O.
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