METHOD AND APPARATUS FOR DIGITAL SIGNAL PROCESSING

摘要

Elements required for a digital television receiver are divided into a plurality of digital signal processor blocks and a host microprocessor block . The blocks are connected by general buses, through which commands and stream s of data are transferred to control the operations of the blocks. An encrypti on encoder/decoder circuit is provided on each of the blocks to protect content s transferred through the buses. An encryption encoder/decoder circuit is also provided on an interface with plug-in extension cards so as to protect the contents output from the interface.