FR966872A - Dispositif pour l'avancement des roues chiffreuses dans un appareil transmetteur de signaux - Google Patents

Dispositif pour l'avancement des roues chiffreuses dans un appareil transmetteur de signaux

Info

Publication number: FR966872A
Authority: FR; France
Prior art keywords: encryption; advancing; wheels; signal transmitting; transmitting device
Prior art date: 1947-05-30
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

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.)

Olivetti SpA

TIM SpA

Original Assignee

Olivetti SpA

Ing C Olivetti and C SpA

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.)

1947-05-30

Filing date

1948-05-26

Publication date

1950-10-20

1948-05-26 Application filed by Olivetti SpA, Ing C Olivetti and C SpA filed Critical Olivetti SpA

1950-10-20 Application granted granted Critical

1950-10-20 Publication of FR966872A publication Critical patent/FR966872A/fr

Status Expired legal-status Critical Current

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
- G09C1/10—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 electrical
- G09C1/12—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 electrical comprising contact-bearing permutation discs

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Transmission Devices (AREA)
Toys (AREA)

FR966872D 1947-05-30 1948-05-26 Dispositif pour l'avancement des roues chiffreuses dans un appareil transmetteur de signaux Expired FR966872A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT667665X		1947-05-30

Publications (1)

Publication Number	Publication Date
FR966872A true FR966872A (fr)	1950-10-20

Family

ID=11298729

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR966872D Expired FR966872A (fr)	1947-05-30	1948-05-26	Dispositif pour l'avancement des roues chiffreuses dans un appareil transmetteur de signaux

Country Status (4)

Country	Link
US (1)	US2512734A (de)
DE (1)	DE948647C (de)
FR (1)	FR966872A (de)
GB (1)	GB667665A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2765364A (en) *	1950-10-05	1956-10-02	Hagelin Boris Caesar Wilhelm	Keying mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1683072A (en) *		1928-09-04		Electric code machine
DE579555C (de) *	1928-11-17	1933-07-03	Chiffriermaschinen Akt Ges	Chiffriervorrichtung mit Chiffrierwalzen
BE390250A (de) *	1932-08-05	1932-09-30
US2373890A (en) *	1938-10-03	1945-04-17	Internat Code Machine Company	Cipher machine
US2394765A (en) *	1939-07-12	1946-02-12	Hagelin Boris Caesar Wilhelm	Ciphering and deciphering mechanism

1948
- 1948-05-26 FR FR966872D patent/FR966872A/fr not_active Expired
- 1948-05-28 GB GB14535/48A patent/GB667665A/en not_active Expired
- 1948-05-28 US US29813A patent/US2512734A/en not_active Expired - Lifetime
1950
- 1950-10-01 DE DEO1171A patent/DE948647C/de not_active Expired

Also Published As

Publication number	Publication date
US2512734A (en)	1950-06-27
DE948647C (de)	1956-09-06
GB667665A (en)	1952-03-05

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