| 发明名称 |
ON-SCREEN DISPLAY SYSTEM |
| 摘要 |
<p>Bending of vertical bar type information such as displayed on the screen of a kinescope (24) as a tuning indication, is due to kinescope beam current variations. Means (58) are provided for reducing the beam current threshold level of an automatic beam current limiter stage 44 to a lower threshold level or for otherwise (23) reducing the beam current, whenever vertical bar type information is to be displayed.</p> |
| 申请公布号 |
DE3476502(D1) |
申请公布日期 |
1989.03.02 |
| 申请号 |
DE19843476502 |
申请日期 |
1984.08.31 |
| 申请人 |
RCA LICENSING CORPORATION |
发明人 |
NORLEY, RONALD RICHARD;CHEN, KEMING JOSEPH;SENDELWECK, GENE KARL |
| 分类号 |
H04N5/59;H04N5/445;(IPC1-7):H04N5/445 |
主分类号 |
H04N5/59 |
| 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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