发明名称 |
AUXILIARY GAIN CONTROL APPARATUS FOR A TELEVISION RECEIVER |
摘要 |
<p>In a television receiver, an output signal from a binary rate multiplier (BRM) is used to control the amplitude of a video signal and thereby the contrast of a displayed image. Contrast control in response to ambient lighting conditions is accomplished by means of a light dependent resistor which modifies the output pull-up voltage of the BRM.</p> |
申请公布号 |
CA1262569(A) |
申请公布日期 |
1989.10.31 |
申请号 |
CA19880563173 |
申请日期 |
1988.03.31 |
申请人 |
RCA LICENSING CORPORATION |
发明人 |
STOUGHTON, JOHN W.;NEAL, CHARLES B. |
分类号 |
H04N5/57;H04N5/58;(IPC1-7):H04N5/58 |
主分类号 |
H04N5/57 |
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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