FACSIMILE EQUIPMENT

PURPOSE:To easily and surely decode cryptographic picture information and to prevent leakage of received picture information to a 3rd party by recording once the received picture information onto paper while the information is ciphered and its content is magnified. CONSTITUTION:Picture information r...

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Bibliographische Detailangaben
1. Verfasser: KINAMI HIDEO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To easily and surely decode cryptographic picture information and to prevent leakage of received picture information to a 3rd party by recording once the received picture information onto paper while the information is ciphered and its content is magnified. CONSTITUTION:Picture information read by a scanner 11 while switches 1, 2 are changed over is inputted to a scrambler 21, where the picture information ciphered and fed to a decoder 12, where the signal is coded and outputted from a communication circuit (not shown in fig.) via a MODEM 13 and an NCU 14. The ciphering in the scrambler 21 is implemented by the normal method and comments such as destination name, message and date are added to the upper part of the picture information so as to make the recipient of the cryptographic data clear. The picture information received from the communication line is decoded by a decoder 15 of similar constitution, stored in a memory 16, fed to a printer 17 and outputted on recording paper. Thus, after the recording, even when a state such as power failure or switch interrupt takes place, no missing of received picture information is caused.