发明名称 |
Circuit arrangement for adjusting the direct current level of a video signal |
摘要 |
A charging current source and a discharging current source are alternately connected to an input capacitor. By choosing the current ratios it is possible to switch a reference level located in the signal range, for example the black level in a television signal, in the circuit, without the necessity for interval keying.
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申请公布号 |
US4470066(A) |
申请公布日期 |
1984.09.04 |
申请号 |
US19820374452 |
申请日期 |
1982.05.03 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
WOELBER, JOERG;KUNZE, DIETER J.;HAHN, FRIEDRICH E.;DEMMER, WALTER |
分类号 |
H04N5/16;(IPC1-7):H04N5/16 |
主分类号 |
H04N5/16 |
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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