发明名称 Text processing device
摘要 A text processing device which includes a typewriter and a memory device, in which a comparison circuit is provided, by means of which a write/read connection between the memory device and the typewriter is completed as a function of the positive result of a comparison between a stored identification and an identification input by means of the typewriter keyboard, for the protection of stored text information against changes and unauthorized access by third parties.
申请公布号 US4434471(A) 申请公布日期 1984.02.28
申请号 US19790060418 申请日期 1979.07.25
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 HILDINGER, DECEASED, EUGEN
分类号 B41J5/30;G06F3/02;G06F3/09;G06F17/22;G06F21/00;(IPC1-7):G06F13/04 主分类号 B41J5/30
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