Multimedia signal processing system
DCFirst Claim
1. A system for the simultaneous storage and retrieval of multimedia data, comprising:
- an input section that acquires an input signal, the input section creates a transport stream from the input signal;
a processor;
a decoder subsystem that decodes the transport stream, the decoder subsystem is communicatively connected to the processor;
a media switch communicatively connected to the decoder subsystem, the media switch operative to interface a plurality of system components and operates asynchronously from the processor, wherein the media switch includes;
a host controller;
a DMA controller;
a bus arbiter; and
a multimedia data stream processor; and
a storage subsystem communicatively connected to the media switch, wherein multimedia data are stored on the storage subsystem and retrieved from the storage subsystem essentially simultaneously.
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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.
386 Citations
14 Claims
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1. A system for the simultaneous storage and retrieval of multimedia data, comprising:
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an input section that acquires an input signal, the input section creates a transport stream from the input signal; a processor; a decoder subsystem that decodes the transport stream, the decoder subsystem is communicatively connected to the processor; a media switch communicatively connected to the decoder subsystem, the media switch operative to interface a plurality of system components and operates asynchronously from the processor, wherein the media switch includes; a host controller; a DMA controller; a bus arbiter; and a multimedia data stream processor; and a storage subsystem communicatively connected to the media switch, wherein multimedia data are stored on the storage subsystem and retrieved from the storage subsystem essentially simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification