Input device for processing system probe controlled

Communications: electrical – Digital comparator systems

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Details

340324M, G06F 314

Patent

active

040657540

ABSTRACT:
In an input device, a scanning pulse is supplied in time division fashion to a plurality of switching means effecting information input indications. The scanning pulse applied to the driven switching means is detected by a probe to stop the operation of address means which varies its contents in accordance with the scanning pulse. The content of the address means during the stoppage thereof are indicated as input information on the driven switching means.

REFERENCES:
patent: 3389404 (1968-06-01), Koster
patent: 3399401 (1968-08-01), Ellis
patent: 3469242 (1969-09-01), Eachus
patent: 3543240 (1970-11-01), Miller
patent: 3668654 (1972-06-01), Doersam
patent: 3768073 (1973-10-01), Rawson

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