Apparatus and method for reproducing a video signal according to a video signal recording mode of a digital video disk and a television mode
AssigneeSamsung Electronics Co., Ltd.
InventorJeong-Hyun Gong
Life of this patent
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Abstract
An apparatus and method for reproducing a video signal of a digital video disk. The method includes the steps of checking a television mode; if the television mode is a PAL system, selecting a video processor in a PAL mode and checking a video signal mode recorded in the disk; and if the video signal recording mode is an NTSC system, selecting a video decoder in an NTSC mode so as to supply a pseudo PAL video signal to a television.
Claims18
A pseudo Phase Alternation by Line (PAL) video signal reproducing apparatus for reproducing information of a digital video disk and transferring a reproduced signal to a television, said apparatus comprising:
- an MPEG (Moving Picture Experts Group) video decoder to generate digital video data by decoding MPEG data stream reproduced from the information of said digital video disk in synchronization with a video clock supplied from exterior of said apparatus and to generate a PAL or National Television System Committee (NTSC) video synchronization signal;
- a video processor to convert said digital video data to an analog video signal, and to generate a PAL or NTSC chrominance signal frequency;
- a key input section to select a television mode which is to provide the information reproduced from said digital video disk in a PAL or NTSC mode by generating a television mode select information signal;
- and
- a controller to generate a first select signal to select said MPEG video decoder to generate the NTSC video synchronization signal in response to selection of the NTSC television mode and to generate a video synchronization signal which is dependent on a type of information reproduced from said digital video disk in response to selection of the PAL television mode, and to generate a second select signal to select said video processor in the PAL or NTSC mode according to the television mode select information supplied from said key input section and a type of the information reproduced from said digital video disk.
A method for reproducing a pseudo PAL video signal in a digital video disk reproducing apparatus having an MPEG (Moving Picture Experts Group) video decoder and a video processor, said method comprising the steps of:
- determining a television mode of a television;
- selecting said video processor in a PAL mode and checking a video signal mode recorded in said digital video disk in response to determining that said television mode is a Phase Alternation by Line (PAL) system;
- and
- selecting a mode of said video decoder to correspond to the video signal recording mode of said digital video disk.
A method for reproducing a video signal in a digital video disk reproducing apparatus having an MPEG (Moving Picture Experts Group) video decoder and a video processor, said method comprising the steps of:
- determining a television mode of a television;
- selecting said video processor in a PAL mode, and checking a video signal mode of information recorded in said digital video disk in response to determining that said television mode is a Phase Alternation by Line (PAL) system;
- determining a video signal recording mode of a video disk;
- selecting said video decoder in the PAL mode so as to supply a PAL video signal to the television in response to determining that the video signal recording mode is the PAL system;
- selecting said video decoder in an NTSC mode so as to supply a pseudo PAL video signal to the television in response to determining that the video signal recording mode is an NTSC system;
- and
- selecting said video processor in the NTSC mode and selecting said video decoder in the NTSC mode so as to supply an NTSC video signal to the television in response to determining that the television mode is the NTSC system.
A pseudo Phase Alternation by Line (PAL) video signal reproducing apparatus for reproducing a Moving Pictures Experts Group (MPEG) generated from information of a digital video disk for display on a television in accordance with a video clock signal, said apparatus comprising:
- an MPEG video decoder, having PAL and NTSC modes, to generate digital video data by decoding said MPEG data stream in synchronization with said video clock signal according to one of said PAL and NTSC modes;
- a video processor, having said PAL and NTSC modes, to convert said digital video data to an analog video signal according to one of said PAL and NTSC modes;
- and
- a controller to select the PAL or NTSC mode of said video processor based upon a television mode of the television, and to select said NTSC mode of said video decoder if the television mode is NTSC, and to select a mode of said video decoder to correspond to a mode of the information reproduced from the digital video disk if the television mode is PAL.
Dependencies are inferred from the claim text.