TELEVISION SIGNAL PROCESSOR

PURPOSE:To eliminate the unnaturality of screen, by shrinking a screen with a TV special effect generator, and applying a space filter only for the combined screen through the use of a key signal used at the combination, for the screen combined with another screen. CONSTITUTION:A screen is shrinked with a TV special effect generator, a TV signal combined with another screen is inputted from an input terminal 1, the frequency band is limited with a horizontal frequency band variable filter 3 and the frequency band is limited with a vertical frequency band variable filter 4. A control signal varyig the band of the filters 3, 4 is inputted to a terminal 2. A signal switching device 6 switches an output signal of the filter 4 and a signal inutted to the terminal 1 with a signal at a control signal terminal 5. A key signal used with the shrinking of the screen through the generation of the special effect and with the combination of the shrinked screen to another screen is inputted to a terminal 5, to perform band limit only for the region where the screen is shrinked and combined with the other screen.