PLL Scan Method for HDTV Products

摘要

A system and method for improved channel scanning in an HDTV device queries a database with location data input by the user, receiving an ordered list of potential channels associated with the selected location. The system may scan only those potential channels on the ordered list, storing successfully decoded channels in memory. The system may further divide the ordered list into groups based on the relative signal strength of potential channels. If a potential channel of the lowest relative signal strength group cannot be successfully decoded, the system may indicate that scanning is complete.

主权项

1. A method of scanning for HDTV television channels with a tuner, comprising:
inputting at least one element of location data; receiving a first ordered plurality of potential channels associated with the at least one element of location data via querying at least one database, the first ordered plurality ordered according to at least one criterion; designating at least one first element of the first ordered plurality as an active channel; attempting to decode the active channel; when the active channel is decoded, storing the decoded active channel in memory; deleting the at least one first element from the first ordered plurality, and designating at least a second element of the first ordered plurality as the active channel.