Television functionality on a chip
First Claim
1. An integrated circuit for providing television functionality, comprising:
- a plurality of input elements;
video and graphics processing elements;
audio processing elements, comprising;
an audio decoder including a signal mode detection system, wherein said signal mode detection system determines a transmission mode of a broadcast signal; and
an audio processor;
output interfaces; and
a control element, wherein said plurality of input elements, said video and graphics processing elements, said audio processing elements, and said output interfaces are coupled through a system controller.
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Accused Products
Abstract
A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.
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Citations
32 Claims
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1. An integrated circuit for providing television functionality, comprising:
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a plurality of input elements; video and graphics processing elements; audio processing elements, comprising; an audio decoder including a signal mode detection system, wherein said signal mode detection system determines a transmission mode of a broadcast signal; and an audio processor; output interfaces; and a control element, wherein said plurality of input elements, said video and graphics processing elements, said audio processing elements, and said output interfaces are coupled through a system controller. - 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)
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31. An integrated circuit, comprising:
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a digital IF demodulator for receiving and demodulating analog television signals; an FM demodulation system for approximating y(n)=1/x(n) in FM demodulation, where x(n)=I2(n)+Q2(n); a video data stream front end processor for demultiplexing video signals that use both a program identifier and are multiplexed using a time division multiplexing approach; a packet substitution module for substituting packets into a video data stream; a media processing system for processing multiple program channels containing one or more data packets; a 2D adaptive comb filter for separating luma and chroma signals within a composite video signal; an artificial time stamp module that generates pseudo MPEG information from received DV25 or DV50 digital video information; a 2D engine that provides two dimensional graphics processing; a 3D engine that provides three dimensional graphics processing; a combined color look-up and gamma correction system that improves video graphics; a timing generator for generating time-dependent control signals for video signals; a teletext decoder system for processing teletext sequences; a MPAA HDTV copy protection filter system for providing MPAA HDTV copy protection; an audio decoder digital interface coupled between a IF demodulator and an audio decoder the provides and all digital interface and reduces signal mismatch; signal mode detection system that determine a transmission mode of a broadcast signal; and a digital signal processor within an audio decoder, wherein said digital signal processor is reprogrammable and updateable.
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32. An integrated circuit for providing television functionality, comprising:
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a plurality of input elements; video and graphics processing elements, comprising an analog video decoder; a digital video decoder comprising an artificial time stamp module that generates pseudo MPEG information from received DV25 or DV50 digital video information; a video and graphics processing module coupled to said analog video decoder and said digital video decoder; and a video encoder coupled to said video and graphics processing module; audio processing elements; output interfaces; and a control element, wherein said plurality of input elements, said video and graphics processing elements, said audio processing elements, and said output interfaces are coupled through a system controller.
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Specification