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US 5,605,406 AGranted
Computer input devices with light activated switches and light emitter protection
OwnerJames H. Boweninventor
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OwnerJames H. Boweninventor
Estimating the term…
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.
An operator input device with light emitters and light detectors, comprising:
A data entry and cursor positioning keyboard and display where the operators finger position is shown over the key indicia location on a display prior to data entry by the operator, comprising in combination:
Dependencies are inferred from the claim text.