FR393960A - Improvements in telegraph codes - Google Patents

Improvements in telegraph codes

Info

Publication number
FR393960A
FR393960A FR393960DA FR393960A FR 393960 A FR393960 A FR 393960A FR 393960D A FR393960D A FR 393960DA FR 393960 A FR393960 A FR 393960A
Authority
FR
France
Prior art keywords
telegraph codes
telegraph
codes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TELEGRAPHIC CODE Co Ltd
Original Assignee
TELEGRAPHIC CODE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TELEGRAPHIC CODE Co Ltd filed Critical TELEGRAPHIC CODE Co Ltd
Application granted granted Critical
Publication of FR393960A publication Critical patent/FR393960A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/08—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member the connections being mechanical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR393960D 1908-01-18 1908-08-28 Improvements in telegraph codes Expired FR393960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB393960X 1908-01-18

Publications (1)

Publication Number Publication Date
FR393960A true FR393960A (en) 1909-01-11

Family

ID=1439232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR393960D Expired FR393960A (en) 1908-01-18 1908-08-28 Improvements in telegraph codes

Country Status (1)

Country Link
FR (1) FR393960A (en)

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