发明名称 |
Electronic iris control for surveillance cameras |
摘要 |
An auto-iris control device for automatically controlling an adjustable iris of a surveillance camera. The auto-iris control device has an adjustably settable reference level which can be adjusted by an operator at a remote location. A comparator compares the reference level against the average video level of the video signal output from the surveillance camera. Based upon the result of the comparison, iris control signals are generated for controlling the adjustable iris.
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申请公布号 |
US5333011(A) |
申请公布日期 |
1994.07.26 |
申请号 |
US19930088100 |
申请日期 |
1993.07.06 |
申请人 |
SENSORMATIC ELECTRONICS CORPORATION |
发明人 |
THOMPSON, EDWIN;ROBERTSON, PHILIP A. |
分类号 |
H04N5/232;H04N5/238;(IPC1-7):H04N5/238 |
主分类号 |
H04N5/232 |
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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