Patent ID: 7975278

Claim:
A digital broadcast receiving apparatus that acquires a parental level to be set to a program of digital television broadcast to restrict viewing of the program according to the parental level, the digital broadcast receiving apparatus, comprising: a microcomputer that acquires a variable Rating Region Table (RRT) and a Content Advisory Descriptor (CAD) from a transport stream signal of the digital television broadcast signal to sample a predetermined information; and a nonvolatile memory that can memorize the variable RRT and memorizes a flag capable of restricting viewing of the RRT; the microcomputer determines whether character information is written in the table, item and level names in the variable RRT, if the table name is blank, the microcomputer sets the flags capable of restricting viewing to all the levels of all the items in the variable RRT while substituting the table name with a predetermined character string that means the table name does not exist, if the item name is blank, the microcomputer sets the flags capable of restricting viewing to all the levels of the item while substituting the item with a predetermined character string comprising of a combination of a character string meaning an item and a numeric value expressing an order of the item in the variable RRT, and if the level name is blank, the microcomputer substitutes the level name with a predetermined character string comprising of a combination of a character string meaning a level and a numeric value meaning a level number, and the microcomputer sets the flag capable of restricting viewing to the level if the block type of the item of the level is a category type, and the microcomputer sets the flag capable of restricting viewing to all the levels not greater than the level of the item if the block type of the item of the level is an order type.