Data communication apparatus

Details Data communication apparatus Data communication apparatus

1986-12-16

1990-02-13

Trafton, David L.

Registers

Systems controlled by data bearing records

235436, 235441, 379144, 382 2, G06F 1520

Patent

active

049009028

ABSTRACT:
A data communication apparatus having a data transmitting portion, a data receiving portion, a detachable memory device such as an IC card or optical card in which received items of data are memorized, and a controller for controlling the process of transmitting and receiving data. In the memory device is set identification codes for identifying the receiver in a confidential communication process. The form of data transmitted by this apparatus is preliminarily converted in accordance with the function of the other party's apparatus.

REFERENCES:
patent: 3803350 (1974-04-01), Lemelson
patent: 3896266 (1975-07-01), Waterbury
patent: 4052739 (1977-10-01), Wada et al.
patent: 4179686 (1979-12-01), Bonicalzi et al.
patent: 4187498 (1980-02-01), Creekmore
patent: 4517412 (1985-05-01), Newkirk et al.
patent: 4554591 (1985-11-01), Kee
patent: 4667088 (1987-05-01), Kramer et al.
patent: 4712103 (1987-12-01), Gotanda

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