发明名称 |
Television installation comprising a circuit arrangement for the compensation of amplitude variations |
摘要 |
A television installation comprising a circuit arrangement for amplification alteration or variation of the video signal in dependence upon its current mean value as compared to a reference mean value. A television camera and monitor are provided, and the current video signal is intermediately stored in an image memory. A mean value is formed in a mean value circuit. This value is compared in relation to a reference value of a reference circuit. A factor is supplied in the form of an output signal of a division stage to a multiplication stage in which the factor is multiplied with the video signal contained in the image memory. The video signal is thereby standardized to a reference value.
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申请公布号 |
US4509074(A) |
申请公布日期 |
1985.04.02 |
申请号 |
US19830463485 |
申请日期 |
1983.02.03 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KRAUSS, PETER;REINHARDT, JUERGEN;SEISSL, JOHANN |
分类号 |
H04N5/32;H04N5/52;(IPC1-7):H04N7/18 |
主分类号 |
H04N5/32 |
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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