Coded data generation or conversion – Bodily actuated code generator
Patent
1991-10-24
1994-07-12
Yusko, Donald J.
Coded data generation or conversion
Bodily actuated code generator
341 22, 341 34, 200339, 200517, 200553, H01H 2300
Patent
active
053292782
ABSTRACT:
A computer keyboard includes a plurality of pairs of side by side keys, each pair of which is on opposite sides of a vertical plane lying between such keys. The keys are mounted for pivotal movement about respective first and second axes. The first key is located at one side of the plane and its pivotal axis is on the opposite side of such plane. The second key is located on the same side of the plane as the first axis and has its pivotal axis on the same side of the plane as the first key. The spacing between the axes is such that the keys have maximum vertical travel and minimal lateral travel. The keys have faces that are inclined toward the plane to form an upwardly concave pocket between the keys for the accommodation of a user's finger. A switch is activated by the first key and another switch is activated by the second key.
REFERENCES:
patent: 3691324 (1972-09-01), Brantingson
patent: 4311884 (1982-01-01), Henley et al.
patent: 4440515 (1984-04-01), Nassimbene
patent: 4843200 (1989-06-01), Parlatore et al.
patent: 4918264 (1990-04-01), Yamamoto et al.
patent: 5053591 (1991-10-01), Theurer
patent: 5140235 (1992-08-01), Ahmed et al.
"Compact computer keyboard" article from IBM Technical Disclosure Bulletin vol. 27, No. 10A, Mar. 1985, pp. 5640-5642.
Giust John
Yusko Donald J.
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