Patent ID: 6452952
Filing Date: 2002-09-17
Classification: H04N,Y10S

Abstract:
A system for providing copy protection for audio and video components of a packet stream, comprising:a packet stream processor for extracting a stream of multiplexed video, audio, and data packets that have been multiplexed in a source signal in conformity with the MPEG standard; and, a packet demultiplexer for demultiplexing said stream of multiplexed packets by selecting packets in said stream according to assigned packet identifiers (PIDs) of said packets, said packet demultiplexer having a first output port connected to an MPEG decoder, and a second output port connected to provide storage of packets outputted therethrough; wherein, when a selected packet is a video or audio packet, said packet demultiplexer outputs said selected packet through said first output port to said MPEG decoder; and wherein, when said selected packet is a data packet, said packet demultiplexer outputs said selected packet through said second output port.