Optoelectronic keyboard

Details Optoelectronic keyboard Optoelectronic keyboard

1987-12-29

1990-06-05

Oberley, Alvin

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

200 5A, 250221, 341 22, H03K 17969

Patent

active

049317946

ABSTRACT:
The invention relates to an optoelectronic keyboard comprising transmitting elements and receiving elements activated in multiplex operation, with the changes in the luminous flux caused by actuation of keys resulting in a signal which defines the actuated key. The invention resides in arranging the transmitting and receiving elements in a main body of the keyboard which comprises a separate cover acting as optical and electromagnetic shielding. The space serving to guide the radiation is preferably separated and shielded from the space accommodating the elements and the electronic evaluating system. Various kinds of multiplex operation can be used to operate the keyboard.

REFERENCES:
patent: 3603982 (1971-09-01), Patti
patent: 4336529 (1982-06-01), Buan
patent: 4671688 (1987-06-01), Brascheurs
patent: 4701747 (1987-10-01), Isharwood et al.
W. S. Duncan and J. M. Higdon, "Optical Keyboard", IBM Technical Disclosure Bulletin, vol. 23, No. 11, Apr. 1981.

Affiliated with

Also associated with

Rating

Optoelectronic keyboard does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optoelectronic keyboard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optoelectronic keyboard will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-494317