发明名称 |
Television video signal A/D converter apparatus |
摘要 |
A television video signal A/D converter apparatus in a liquid crystal television receiver has an A/D converter for A/D converting a television video signal. Upper and lower reference potentials for determining an operating voltage amplitude are supplied to the A/D converter from a reference potential generator. The upper and lower reference potentials are divided at a given ratio by a resistor so as to fix an average potential of the television video signal at a constant value using the potential at the dividing point as a bias potential, and thereafter the television video signal is supplied to the A/D converter.
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申请公布号 |
US4642693(A) |
申请公布日期 |
1987.02.10 |
申请号 |
US19850733584 |
申请日期 |
1985.05.13 |
申请人 |
CASIO COMPUTER CO., LTD. |
发明人 |
FUSE, TAKAHIRO;KAWAMURA, MASAO;YAMAGISHI, KOJI;ODACHI, KAZUYUKI;ONO, HARUO;KIZAKI, MASAHARU |
分类号 |
H04N5/14;G09G3/36;H03M1/00;H04N3/12;H04N5/20;H04N5/66;(IPC1-7):H04N5/74 |
主分类号 |
H04N5/14 |
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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