Multi-item data input apparatus

Details Multi-item data input apparatus Multi-item data input apparatus

1980-04-16

1982-04-20

Robinson, Thomas A.

Communications: electrical

Audible indication

Percussion-type sound producer

200 5A, G08C 100, H01H 900, G08C 900

Patent

active

043261957

ABSTRACT:
A multi-item data input apparatus for manual generation of data to designate selected ones of a plurality of items, the items being visibly displayed on a flat sheet, comprising a plate having apertures therein in positions corresponding to those of the items on the sheet, a transparent key mounted in each of the apertures and movable therein within a limited range, a contact spring actuatable by each key, and a matrix of conductor elements arranged in rows and columns in relation to the contact springs such that contact between two intersecting conductors is established by actuation of any of the keys, thereby generating data designating the item which is visible through that key.

REFERENCES:
patent: 3757322 (1973-09-01), Barkan et al.
patent: 3826882 (1974-07-01), Giolitti et al.
patent: 4017848 (1977-04-01), Tannas, Jr.
patent: 4032931 (1977-06-01), Haker
patent: 4056699 (1977-11-01), Jordan
patent: 4059737 (1977-11-01), Gergaud
patent: 4192976 (1980-03-01), Scott
patent: 4194099 (1980-03-01), Mickelson

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