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Digital camera shutter control circuit having memory read- out/shutter opening synchronization
Digital camera shutter control circuit having memory read- out/shutter opening synchronization
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机译:具有存储器读出/快门打开同步的数字照相机快门控制电路
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摘要
A camera shutter digital control circuit having a counter for counting a number of pulses representative of exposure time and for reading-out the counted pulses to control exposure time. An adjustable delay circuit synchronizes shutter opening and the initiation of memory read-out. Upon the initiation of shutter opening a signal is applied to the delay circuit, which is adjusted to develop a delay equal to a particular shutter opening time. The delayed signal is then applied to initiate reading-out of the control pulses so that the exposure time is controlled in synchronism with the shutter opening.
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