Electronic enciphering- and deciphering apparatus in the form of

Details Electronic enciphering- and deciphering apparatus in the form of Electronic enciphering- and deciphering apparatus in the form of

1976-11-01

1978-06-13

Birmiel, Howard A.

Telegraphy

Systems

Printing

340337, 178 30, H04K 102, H04L 902

Patent

active

040950468

ABSTRACT:
An electronic enciphering- and deciphering apparatus in the form of a pocket calculator, comprising an input device for the input of characters to be processed, a control device for the input of control commands determining the function of the apparatus, an output device for the display of information, and a power source for the apparatus. A primary storage or memory serves for the storage of the entered character information, the output side of which can be connected with the output device and a cipher computer which can be connected at its output side with the output device. At least one key character storage is operatively associated with the cipher computer, the key character storage being connectable with the input device. A central control unit can be controlled by the control device. The control unit, as a function of the entered control commands, determines the information paths in the apparatus and controls the aforementioned components, so that depending upon the entered control commands the output device displays the character information entered at the input device or the information stored in the primary storage or the character information produced by the cipher computer.

REFERENCES:
patent: 3878331 (1975-04-01), Morgan et al.
patent: 4068089 (1978-01-01), Frutiger
"Hand-Held Terminal to Give Field Troops Access to Data Nets", Electronics, Nov. 11, 1976, pp. 29-30.

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