Communication apparatus and method

Details Communication apparatus and method Communication apparatus and method

1994-08-18

1996-05-14

Boudreau, Leo

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359172, 359155, 359180, 359152, H04B 1000

Patent

active

055176089

ABSTRACT:
A communication apparatus which can communicate by a proper light intensity and can prevent excessive electric power consumption without providing light intensity measuring means on the reception side is provided. There are also provided communication apparatus and method, in which after a CPU issued a first message, a light emission intensity of an infrared LED is changed by the CPU so as to become the optimum state in accordance with the presence or absence of the response of a second message that is performed in response to the first message.

REFERENCES:
patent: 5303248 (1994-04-01), Gibbs
patent: 5349460 (1994-09-01), Ogawahara et al.

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