Digital broadcasting receiver

Details Digital broadcasting receiver Digital broadcasting receiver

2006-08-15

2006-08-15

Yenke, Brian P. (Department: 2622)

Television

Receiver circuitry

Tuning

C348S563000, C348S569000, C348S570000, C348S731000, C348S734000, C725S038000, C725S053000, C725S056000

Reexamination Certificate

active

07092044

ABSTRACT:
A digital broadcasting receiver that uses a channel map containing broadcast information such as channel numbers and virtual channel numbers is described. When a user selects a certain digital channel number, a control unit consisting of a CPU makes a search as to whether or not the number exists in the channel map. If the number does not exist, “No Signal” notice is displayed on a display and if the user selects a scan instruction then, the entire range of frequency band of the broadcasting signal is scanned. If a signal that corresponds to the digital channel number exists, its broadcast is received. Therefore, a search is possible even when the user knows only a virtual channel number and the digital channel number entered by the user is not registered in the channel map.

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