Method and apparatus for digital signal processing

Details Method and apparatus for digital signal processing Method and apparatus for digital signal processing

2006-04-04

2006-04-04

Barrón, Jr., Gilberto (Department: 2132)

Cryptography

Communication system using cryptography

Time segment interchange

C380S042000, C713S189000

Reexamination Certificate

active

07023991

ABSTRACT:
Elements necessary for a digital television receiver are structured as a plurality of digital signal processing blocks and a host arithmetic operation processing block. The blocks are connected through a general purpose bus. Commands for controlling operations of the blocks and data of a stream are transferred through the bus. When an encryption encoder/decode is disposed in each block, contents transferred through the bus can be protected. When an encryption encoder/decode circuit is disposed in an interface to which an extension plug-in card is attached, contents that are output from the interface can be protected.

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Patent Abstracts of Japan JP 08 046948 A (Sony Corp) Feb. 16, 1996.

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