| 摘要 |
PURPOSE: An on screen display device of a digital television receiver is provided so that very good OSD screen can be obtained in analog broadcasting by using OSD of high image quality when receiving analog broadcasting throught a digital television receiver. CONSTITUTION: An on screen display device of a digital television receiver includes a tuner(210) for receiving analog broadcast. A modulator(211) demodulates output of the tuner(210) and outputs complex signals for analog broadcast. A multi-standard video processor(212) receives the complex image signals of the demodulator(211) or external image signals for analog broadcasting and digitizes the complex image signals of the demodulator(211) or external image signals for analog broadcasting and outputs the digital image data. A system memory(204) stores OSD data. A microprocessor(203) processes the OSD data according to control of users. A video decoder(205) combines the OSD data inputted through the microprocessor(203) and broadcast signals inputted through the multi-standard video processor(212) and outputs digital video data. A R,G,B processor(207) receives the output of video decoder(205) and transforms the output of video decoder(205) to R,G,B. |
