Digital television translator with PSIP update
First Claim
1. A method of translating a digital television signal, comprising:
- receiving a first digital transport stream containing audio, video, and a collection of hierarchically arranged sub-tables having system information data and program guide data;
updating at least a portion of the sub-tables to form an updated digital television signal in an output transport stream;
modulating the output transport stream having the updated sub-tables;
converting the modulated output transport stream to an analog signal;
up-converting the analog signal to an RF signal; and
amplifying the RF signal.
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Accused Products
Abstract
A digital television translator includes a digital television receiver for receiving a first digital television signal at a first frequency and generating a digital transport stream from the first digital television signal. The digital transport stream can include original Program and System Information (PSIP) data having RX channel data that is indicative of the first frequency, the first major channel number, and/or the first minor channel number. The digital television translator also includes a PSIP update module for updating the original PSIP data in the digital transport stream by replacing the RX channel data with TX channel data. The TX data is indicative of a second frequency, a second major channel number, and/or a second minor channel number. The digital television translator further includes a digital television modulator for converting the digital transport stream having the updated PSIP data into a second digital television signal at the second frequency, where the second frequency can be the same or different from the first frequency.
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Citations
23 Claims
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1. A method of translating a digital television signal, comprising:
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receiving a first digital transport stream containing audio, video, and a collection of hierarchically arranged sub-tables having system information data and program guide data; updating at least a portion of the sub-tables to form an updated digital television signal in an output transport stream; modulating the output transport stream having the updated sub-tables; converting the modulated output transport stream to an analog signal; up-converting the analog signal to an RF signal; and amplifying the RF signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of translating a digital television signal, comprising:
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receiving a first digital transport stream containing audio, video, and a collection of hierarchically arranged sub-tables having system information data and program guide data; removing at least one sub-table present in the first digital transport stream; and injecting at least one new sub-table into said first digital transport stream to form an updated digital television signal as an output transport stream. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for translating a digital television signal, comprising:
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receiving a first digital transport stream comprising an ATSC Digital Television Standard signal, audio, video, and hierarchically arranged sub-tables including channel parameters, system information data and program guide data; and modifying said channel parameters to form an updated digital television signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification