Patent ID: 7647608
Filing Date: 2010-01-12
Classification: H04N

Abstract:
1. A method of processing a digital broadcast signal in a digital television receiver, the method comprising: receiving a digital broadcast signal which includes a rating region table carrying rating information for multiple geographical regions and a master guide table carrying information related to the rating region table; parsing the master guide table, the parsed master guide table including a version number field defining a version number of the rating region table and at least one effective time field defining an effective time interval of the version number, wherein a process of updating the rating region table is suspended during the effective time interval regardless of the version number; discarding a subsequently received rating region table during a current system time of the digital television receiver that is before the effective time interval of the version number even though a version number of the subsequently received rating region table has been updated; and determining whether to replace a current rating region table with the subsequently received rating region table when the current system time is after the effective time interval of the version number.