Indicia sensor apparatus

Details Indicia sensor apparatus Indicia sensor apparatus

1979-09-26

1981-12-08

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

200 46, 235489, 235443, 340365A, G06K 706, G06K 2100, G08C 900, H01H 4308

Patent

active

043049915

ABSTRACT:
Indicia sensor apparatus which provides for a ready, low cost, electrical sensing of an indicia, supported on a readily interchangeable membrane, and provided as a coded pattern of aperture through the membrane. An elastomer electrode element, such as a conductive foam rubber, is pressed against the face of the membrane with sufficient pressure so as to induce a protuberance of some part of the relatively adaptive elastomer through each membrane aperture. This protuberance brings about contactual intercourse with a correspondent receptor electrode for each aperture position. The result is an electrical circuit change which may be utilized in a current seeking path to produce different binary logic values in accord with the coded aperture pattern carried by the membrane.

REFERENCES:
patent: 3200240 (1965-08-01), Hammel
patent: 3515339 (1970-06-01), McEwan
patent: 3525855 (1970-08-01), Azuma
patent: 3617666 (1971-11-01), Brave
patent: 3624619 (1971-11-01), Ambrosio

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