Television signal processor that is operable to generate a television signal from broadcast waves with a plurality of different broadcast standards

Abstract

In an effective display area, an additional information recognizing part,recognizes a standard of a broadcast wave, refers to a ROM,and selects a target value, and provides an internal clock of a video data reading part,and an internal clock of an OSD data reading part,with the target value. At a retrace interval, on the other hand, the additional information recognizing part,notifies an additional information synthetic position deciding part,of the standard of the broadcast wave. The additional information synthetic position deciding part,selects from a ROM,a target value for reading the additional information applicable to the notified standard, and outputs the target value to an additional information reading parts,. When the standard of the broadcast wave is changed, target values corresponding to the changes are responsively selected from the ROM,and the ROM