Published:2009/7/24 4:06:00 Author:Jessie | From:SeekIC
Scan pulses activate nor gates in sequence. For 11 by 11 display matrix, there are 11 nor pates each with its switching circuit. On read-in, nor gate output of -10 V activates switching circuit, grounding its capacitor and making capacitor charge up to value of that data point.-W. W. Anderson, Latest Antisubmarine Aid-Magnetic Contour Display System, Electronics, 36:32, p 58-61.
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