发明名称 |
System for monitoring video signal parameters, including the luminance signal |
摘要 |
A method and apparatus for monitoring selected parameters of a video signal wherein the video parameters to be monitored are movingly or randomly contained in the video signal outside the vertical blanking signals and wherein the video signal includes a least one of a luminance signal having positive peaks and negative peaks, a chrominance signal having a peak voltage value comprising: determining at least one video parameter selected from among: (1) an instantaneous peak voltage level of the positive peaks in the luminance signal; (2) an instantaneous peak voltage level of the negative peaks in the luminance signal; (3) the peak voltage value of the chrominance signal; and (4) combinations thereof. Each determined video parameter is compared with a reference DC voltage value selected to correspond with the determined video parameter and an output indication of each such comparison is provided.
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申请公布号 |
US4504851(A) |
申请公布日期 |
1985.03.12 |
申请号 |
US19830508921 |
申请日期 |
1983.06.29 |
申请人 |
PRECISION ELECTRONICS, INC. |
发明人 |
JANKO, MIKE A.;BROBERG, DAVID K. |
分类号 |
H04N17/00;(IPC1-7):H04N9/62 |
主分类号 |
H04N17/00 |
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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