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1. (WO2001037555) METHOD AND APPARATUS FOR DIGITAL SIGNAL PROCESSING AND METHOD OF PROVIDING EXTENSION FUNCTION

Pub. No.:    WO/2001/037555    International Application No.:    PCT/JP2000/008113
Publication Date: Sat May 26 01:59:59 CEST 2001 International Filing Date: Sat Nov 18 00:59:59 CET 2000
IPC: G06F 15/78
G06F 9/445
H04N 5/00
H04N 5/44
Applicants: SONY CORPORATION

NAKAMURA, Masashi

MORIWAKI, Hisayoshi

FURUI, Sunao

HAMADA, Ichiro

Inventors: NAKAMURA, Masashi

MORIWAKI, Hisayoshi

FURUI, Sunao

HAMADA, Ichiro

Title: METHOD AND APPARATUS FOR DIGITAL SIGNAL PROCESSING AND METHOD OF PROVIDING EXTENSION FUNCTION
Abstract:
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 streams of data are transferred to control the operations of the blocks. Plug-in extension cards detachable to the buses are provided for potential new services. The plug-in extension cards include hardware for implementing extended functions and store command scripts for the hardware. When a plug-in extension card is connected to a bus through an interface, command scripts are uploaded to the host microprocessor block that in turn operates the plug-in extension card based on the received command scripts.