Self illumination circuit of a hand-held remote control device a

Details Self illumination circuit of a hand-held remote control device a Self illumination circuit of a hand-held remote control device a

1995-05-30

1998-01-06

Holloway, III, Edwin C.

Communications: electrical

Continuously variable indicating

With meter reading

34082572, 341176, 341 22, 362109, 200310, H04Q 100

Patent

active

057059977

ABSTRACT:
A self illumination circuit of a hand-held remote control device and self illumination method make it easy to find and operate the remote control device when the remote control device is located in a dark environment. The circuit includes an illuminance sensing section, a contact sensing section, a key sensing section, a control section, a position indicating section, a key illuminating section, and a counter. If the illuminance sensing section senses illuminance of environment and transfers an illuminance sensing signal to the control section, the position indicating section indicates position of the remote control device according a position indicating signal from the control section. Upon receiving signals from the contact sensing section, the key sensing section, and the counter, the control section lights up, twinkles and puts out the key illuminating section.

REFERENCES:
patent: 4772769 (1988-09-01), Shumate
patent: 4778967 (1988-10-01), Deng
patent: 5132681 (1992-07-01), Yabe et al.
patent: 5188448 (1993-02-01), Siriani et al.
patent: 5204586 (1993-04-01), Moore
patent: 5204657 (1993-04-01), Prosser
patent: 5408330 (1995-04-01), Squicciarini et al.

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