Enciphering-and deciphering apparatus in the form of a...

Details Enciphering-and deciphering apparatus in the form of a... Enciphering-and deciphering apparatus in the form of a...

G - Physics

09

C

197/16, 340/70

G09C 3/00 (2006.01) H04L 9/00 (2006.01) H04L 9/18 (2006.01)

Patent

CA 1076676

ABSTRACT OF THE DISCLOSURE An enciphering and deciphering apparatus in the form of a typewriter having an input device for the input of characters to be processed, a control device for the input of control commands determining the mode of operation of the apparatus and an output device possessing at least one page printer. A display device is connectable with the input device for the stepwise progressive dis- play of the infed characters. The output side of the display device can be selectively connected with the printer, with a cipher computer or a key character storage associated with the cipher computer. The cipher computer has its output side connectable with the printer. A central control unit is provided which can be controlled by the con- trol device. The central control unit fixes as a function of the in- fed control commands the data routes in the apparatus and controls the components of the apparatus, and depending upon the infed con- trol commands the printer receives and prints the characters dis- played by the display device or the characters produced by the cipher computer. -1-

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