Multimedia signal processing system
DCFirst Claim
1. A system for the simultaneous storage and playback of multimedia data, comprising:
- an input section for acquiring an input signal;
an output section, wherein said input signal is passed to said output section as a transport stream;
said output section including;
a processor;
a decoder subsystem that decodes said transport stream, said decoder subsystem connected to said processor by a first data bus; and
a media switch connected to said decoder subsystem by a second data bus, said media switch operative to interface a plurality of system components and operates asynchronously from said processor, wherein said media switch comprises a media manager, said media manager including;
a host controller;
a DMA controller;
a bus arbiter; and
a multimedia data stream processor; and
a storage subsystem connected to said media switch, wherein multimedia data are stored on said storage subsystem and retrieved from said storage subsystem essentially simultaneously.
12 Assignments
Litigations
2 Petitions
Accused Products
Abstract
A multimedia signal processing system utilizes an easily manipulated, low-cost storage and display system that allows the user to view a television program and instantly review previous scenes within the program. The invention also allows the user to store selected programs while simultaneously watching or reviewing another. A versatile system architecture enables providing the invention in multiple configurations, each adapted to receive input signals from a different source. At the highest level, the system includes an input section and an output section. Across all configurations, the output section remains substantially the same, while the input section varies according to the signal type and the source. Thus, several configurations are provided, each one requiring only minor system board modifications. The system architecture thus simplifies the design and manufacturing challenge presented by producing units to serve different markets, such as digital satellite, digital cable and analog cable.
280 Citations
37 Claims
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1. A system for the simultaneous storage and playback of multimedia data, comprising:
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an input section for acquiring an input signal; an output section, wherein said input signal is passed to said output section as a transport stream;
said output section including;a processor; a decoder subsystem that decodes said transport stream, said decoder subsystem connected to said processor by a first data bus; and a media switch connected to said decoder subsystem by a second data bus, said media switch operative to interface a plurality of system components and operates asynchronously from said processor, wherein said media switch comprises a media manager, said media manager including; a host controller; a DMA controller; a bus arbiter; and a multimedia data stream processor; and a storage subsystem connected to said media switch, wherein multimedia data are stored on said storage subsystem and retrieved from said storage subsystem essentially simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification