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Multisystem television which is usable as a monitor of a personal computer and a method thereof
| Details |
Inventors: Lee, Kab-Keun;
Assignee: Samsung Electronics Co., Ltd. (Suwon, KR)
Primary Examiner: Black; Thomas G.
Assistant Examiner: Le; Uyen
Attorney, Agent or Firm: Staas & Halsey LLP
A multisystem TV which is usable as a monitor of a personal computer (PC). The multisystem television includes an NTSC signal processor for separating an NTSC broadcasting signal into a luminance signal and a chrominance signal and generating double-scanned original color signals; a digital broadcasting signal processor for decoding a DBS (Direct Broadcasting Satellite) broadcasting receiving signal and an HD (High Definition) broadcasting receiving signal and converting a signal corresponding to a current viewing mode out of the decoded HD signal, the decoded DBS signal and an external HD signal into a display type; a switching circuit for selectively generating one of a PC monitor signal received from a PC, an output signal of the digital broadcasting signal processor and an output signal of the NTSC signal processor according to the current viewing mode; a video output circuit for adjusting picture quality of a signal generated from the switching circuit so as to be supplied to a picture tube; a controller for controlling the signal processing of the NTSC signal processor, digital broadcasting signal processor and video output circuit, the switching of the switching circuit, and the deflection of the picture tube, according to the current viewing mode; and a synchronous processor for processing a synchronizing signal generated from the switching circuit and supplying the processed signal to the video output circuit and the controller. |
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DETAILED DESCRIPTION It is an object of the present invention to provide a multisystem TV which can be used as a PC monitor and enable viewing of the NTSC broadcasting, DBS broadcasting and HDTV broadcasting.
Additional objects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
To achieve the above and other objects, there is provided a multisystem TV including an NTSC signal processor for separating an NTSC broadcasting signal into a luminance signal and a chrominance signal and generating double-scanned original color signals; a digital broadcasting signal processor for decoding a DBS (Direct Broadcasting Satellite) broadcasting receiving signal and an HD (High Definition) broadcasting receiving signal and converting a signal corresponding to a current viewing mode out of the decoded HD signal, the decoded DBS signal and an external HD signal into a display type; a switching circuit for selectively generating one of a PC monitor signal received from a PC, an output signal of the digital broadcasting signal processor and an output signal of the NTSC signal processor according to the current viewing mode; a video output circuit for adjusting picture quality of a signal generated from the switching circuit so as to be supplied to a picture tube; a controller for controlling the signal processing of the NTSC signal processor, digital broadcasting signal processor and video output circuit, the switching of the switching circuit, and the deflection of the picture tube, according to the current viewing mode; and a synchronous processor for processing a synchronizing signal generated from the switching circuit and supplying the processed signal to the video output circuit and the controller.
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