Image processing apparatus and system and method of same

Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection

Reexamination Certificate

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Details

C380S200000, C380S201000, C380S202000, C380S203000, C380S227000, C380S228000, C380S229000, C380S230000

Reexamination Certificate

active

07146508

ABSTRACT:
An image processing apparatus capable of preventing a copy protect function of a video or other contents signal from being disabled. An encoder encodes a contents signal from a DVD reproduction unit. A copy protect circuit performs copy protect processing on the encoded signal and outputs it. The copy protect circuit is controlled by control data input from CPU via an I2C_IF circuit. At this time, verification data from the CPU is stored in, and then read from registers in the I2C_IF circuit. Then, the CPU verifies the destination of transmission of the control data.

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patent: 2003/0023847 (2003-01-01), Ishibashi et al.

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