Method and apparatus for passing clear DVD data in a computer

Details Method and apparatus for passing clear DVD data in a computer Method and apparatus for passing clear DVD data in a computer

2005-12-13

2005-12-13

Groody, James J. (Department: 2616)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000, C386S349000

Reexamination Certificate

active

06975809

ABSTRACT:
The system is for passing clear DVD program streams from a CPU (central processing unit) to an MPEG-2 decoder. In the system the CPU is connected to a first bus interface. A system memory is connected to the first bus interface via a memory bus. A second bus interface is connected to the first bus interface via a PCI (peripheral component interconnect) bus and a DVD data source is connected to the second bus interface. A packet data decoder is connected to the memory bus via a buffer. The CPU reads DVD data from the DVD data source across the PCI bus, decrypts the DVD data and creates a packet data, and sends the packet data to the buffer via the memory bus. The MPEG-2 decoder receives the packet data, via the transport bus, from the buffer. In more general terms, the system connects two existing busses in a computer of set-top box.

REFERENCES:
patent: 5450549 (1995-09-01), Casparian
patent: 5990958 (1999-11-01), Bheda et al.
patent: 6297797 (2001-10-01), Takeuchi et al.
patent: 6466736 (2002-10-01), Chen et al.
patent: 6704361 (2004-03-01), Bublil et al.

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