System utilizing portable device

Details System utilizing portable device System utilizing portable device

1993-02-01

1994-01-04

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379355, 379357, H04M 1100

Patent

active

052767337

ABSTRACT:
Call generating apparatus includes a light reception unit and a control unit for acquiring a line and sending a dial signal onto the acquired line in accordance with an output from the light reception unit when a portable device is detected as set in the apparatus. Received or previously stored image data can be printed when an output of the light reception unit coincides with predetermined identification data. A reception error is determined when successive outputs from the light reception unit do not occur within a predetermined time.

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patent: 4900902 (1990-02-01), Sakakibara
patent: 4980910 (1990-12-01), Oba et al.

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