Force sensitive transducer for use in a computer keyboard

Details Force sensitive transducer for use in a computer keyboard Force sensitive transducer for use in a computer keyboard

1994-06-03

1996-02-06

Swarthout, Brent A.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 22, 200 6A, 345168, 345160, 338 99, 338114, 338128, H03K 17965

Patent

active

054899001

ABSTRACT:
A strain sensitive columnar transducer for a data entry keyboard contains a column upstanding from the keyboard. Strain sensitive orthogonally oriented patterns are formed on a single flexible planar sheet which is sliced to place each of the patterns on a separate tab. The planar sheet is forced over the column so that the patterns lie up against the sides of the column to measure force exerted on the column.

REFERENCES:
patent: 3673354 (1972-06-01), Oda et al.
patent: 3691316 (1972-09-01), Oda et al.
patent: 4322707 (1982-03-01), Ort
patent: 5124689 (1992-06-01), Franz et al.
patent: 5231386 (1993-07-01), Brandenburg et al.
patent: 5252971 (1993-10-01), Franz et al.
patent: 5278557 (1994-01-01), Stokes et al.

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