Patent ID: 7164844
Filing Date: 2007-01-16
Classification: H04N

Abstract:
1. An apparatus for performing reverse playback of digitally recorded coded audiovisual data, comprising: a transport processor to receive coded audiovisual data from an input port: a first memory operatively connected to the transport processor and to receive the coded audiovisual data from the transport processor; a second memory operatively connected to a bus for digitally recording the coded audiovisual data; a host processor operatively coupled to the first memory and the second memory, wherein the host processor is configured to transfer the coded audiovisual data from the first memory to the second memory; a decoder coupled to the bus for receiving and decoding a portion of the digitally recorded coded audiovisual data rom the second memory, the decoder including an associated decoder memory, wherein the decoder stores the decoded portion in the decoder memory and outputs the decoded portion in a non-reversed order; and a graphics accelerator processor operatively connected to said bus and to the decoder, the graphics accelerator processor including an associated graphics accelerator memory, wherein the graphics accelerator processor receives the decoded portion in the non−reversed order and writes the decoded portion in the non-reversed order to the graphics accelerator memory, and wherein the graphics accelerator processor in response to a command reads the decoded portion from the graphics accelerator memory in a reversed order for reproduction as a displayed reverse playback of the portion of the digitally recorded coded audiovisual data.