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US 6,721,018 B1Granted
Method and apparatus for decreasing the time required to generate a channel map in a television signal receiver
AssigneesSony Corporation, Sony Electronics Inc.
InventorsPeter Rae Shintani, Kenichiro Toyoshima
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Abstract
In a television signal receiver having two or more tuners, initial channel mapping can be expedited by simultaneously using all tuners in parallel to map the receivable channels. A processor controls the application of television signals from one or more sources to the two or more tuners and controls the channel mapping function of both tuners simultaneously.
Claims8
A method of minimizing the time required to generate a channel map, comprising the steps of:
- simultaneously using a plurality of tuners in parallel to scan a range of available frequencies and locate receivable channels, and
- generating a unified channel map of said receivable channels based on output from said plurality of tuners without re-tuning a channel of said receivable channels that has been incorporated into said unified channel map.
An apparatus for minimizing the time required to generate a channel map, comprising:
- a processor;
- at least two tuners;
- and
- at least one input for a television signal,
- wherein said processor controls said at least two tuners in parallel such that said at least two tuners simultaneously scan a range of available frequencies and locate receivable channels, and
- wherein said processor generates a unified channel map of said receivable channels based on output from said at least two tuners without re-tuning a channel of said receivable channels that has been incorporated into said unified channel map.
3 more elements
Dependencies are inferred from the claim text.