Portable electronic apparatus with optical inter-module communic

Details Portable electronic apparatus with optical inter-module communic Portable electronic apparatus with optical inter-module communic

1991-11-04

1993-05-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

359154, G02B 2700

Patent

active

052104273

ABSTRACT:
A portable electronic apparatus including a casing having a connecting surface adapted to be connected to a connecting surface of an external apparatus; a control unit accommodated in the casing; a transmitting terminal provided on the connecting surface of the casing for transmitting data as an optical signal generated by the control unit; and a receiving terminal provided on the connecting surface of the casing for receiving data as an optical signal generated by the external apparatus. The transmitting terminal and the receiving terminal are positioned in symmetrical relationship to each other with respect to a center of the connecting surface of the casing. Accordingly, in carrying out data transfer by optical space communication between two portable electronic apparatuses of the same kind, the transmitting terminal of one of the portable electronic apparatuses can be easily aligned to the receiving terminal of the other portable electronic apparatus.

REFERENCES:
patent: 4348740 (1982-09-01), White
patent: 4622681 (1986-11-01), Snell et al.

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