发明名称 |
Video tape recorder of PAL system |
摘要 |
<p>A video tape recorder of the PAL system is disclosed which includes a converter circuit for use in a stop mode of the NTSC system and for converting an inputted composite video signal of the NTSC system into a composite video signal of the PAL system. In the converter circuit, a band-pass filter (2) band-pass-filters a chrominance sub-carrier signal from the inputted composite video signal of the NTSC system, and a low-pass filter (9) low-pass-filters a luminance signal from the inputted composite video signal of the NTSC system. A frequency converter circuit (4) frequency-converts the chrominance sub-carrier signal of the NTSC system into a chrominance sub-carrier signal of the NTSC system whose sub-carrier frequency is a predetermined sub-carrier frequency, and a system converter (7a) converts the chrominance sub-carrier signal into a chrominance sub-carrier signal of the PAL system, and an adder (10) adds the luminance signal from the low-pass filter (9) to the chrominance sub-carrier signal of the PAL system, and outputs a signal of the result of addition as a composite video signal of the PAL system. The above-mentioned converter circuit is constituted by using a recording and reproducing circuit. <IMAGE></p> |
申请公布号 |
EP0954185(A2) |
申请公布日期 |
1999.11.03 |
申请号 |
EP19980201609 |
申请日期 |
1998.05.18 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
UCHIYAMA, SHIN-ICHI;MIMURA, NORIHISA;HEINEMANN, HERBERT;ERNST, HOLGER |
分类号 |
H04N9/80;H04N9/79;H04N9/83;(IPC1-7):H04N9/79 |
主分类号 |
H04N9/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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