Environmentally safe machine control security switch

Details Environmentally safe machine control security switch Environmentally safe machine control security switch

1997-05-19

1998-07-28

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

34082531, 341 22, 345168, B41J 500

Patent

active

057854394

ABSTRACT:
A keyboard where no finger pressure is needed to input data, that uses rows of emitters opposed by rows of detectors to detect a finger position, that is environmentally sealed, and inherently intrinsic safe. The keyboard has a mouse function so an operators finger can be tracked to position a cursor on a host display, and input normal keyboard functions. A sleep mode for a display or keyboard that slows down the scan rate and emitter intensity to increase emitter life. A split keyboard for each hand with an arm rest with an arm strap to attach the keyboard to an operators arm and a strap to attach the keyboard to the arm of a chair. A learning keyboard with a mode for QWERTY or other key pattern keyboards that the position of the operators fingers are tracked and supper imposed on a display, so the operator can see when their finger is over the correct keyboard indicia so correct data entry can be made without looking at the keyboard.

REFERENCES:
patent: 4791280 (1988-12-01), O'Connell et al.
patent: 4942606 (1990-07-01), Kaiser et al.
patent: 5577848 (1996-11-01), Bowen
patent: 5605406 (1997-02-01), Bowen

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