Radiation interruption keyboard

Details Radiation interruption keyboard Radiation interruption keyboard

1987-04-20

1989-08-22

Moore, David K.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 22, 250221, G08C 2100

Patent

active

048600083

ABSTRACT:
A radiation interruption keyboard is provided including a key matrix, a series of light emitting diodes and a series of photodiodes. With each diode is associated a column along which the light radiation propagates in a hollow channel. With each photodiode is associated a line along which the light radiation propagates in a strip made from a transparent material. Each strip has a deflecting area for deflecting the radiation from the light emitting diodes towards the corresponding photodiode. Upstream of each deflection area, in the path of the light beam, and in direct view of the corresponding light emitting diode is a flap for interrupting the radiation controlled by a key. The light emitting diodes are controlled sequentially and cyclically.

REFERENCES:
patent: 3603982 (1971-09-01), Patti
patent: 3648050 (1972-05-01), Koo
patent: 3767022 (1937-10-01), Olson
patent: 3856127 (1974-12-01), Halfon et al.
patent: 4417824 (1983-11-01), Paterson et al.
patent: 4480182 (1988-10-01), Ely et al.
patent: 4641026 (1987-02-01), Garcia, Jr.
patent: 4912092 (1987-12-01), Boldridge, Jr. et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2419277