Decryption key management

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8442226
APP PUB NO 20090169002A1
SERIAL NO

12355323

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Abstract

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An encrypted program received in an MPEG transport stream is decrypted by receiving an address in the MPEG transport stream, reading a key from a memory in accordance with the received address, and decrypting the encrypted program based on the key.

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Patent Owner(s)

Patent OwnerAddress
ZENITH ELECTRONICS CORPORATIONPATENT DEPARTMENT 2000 MILLBROOK DRIVE LINCOLNSHIRE IL 60069

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hauge, Raymond C Fox River Grove, US 17 174
Lewis, Richard Buffalo Grove, US 81 1369

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