DK506876A - Elektronisk chiffrerings og dechiffreringsapparat i form som en lommeregner - Google Patents

Elektronisk chiffrerings og dechiffreringsapparat i form som en lommeregner

Info

Publication number
DK506876A
DK506876A DK506876A DK506876A DK506876A DK 506876 A DK506876 A DK 506876A DK 506876 A DK506876 A DK 506876A DK 506876 A DK506876 A DK 506876A DK 506876 A DK506876 A DK 506876A
Authority
DK
Denmark
Prior art keywords
decifration
calculator
electronic enforcement
enforcement
electronic
Prior art date
Application number
DK506876A
Other languages
English (en)
Inventor
P Frutiger
B Gemperle
Original Assignee
Europ Handelsges Anst
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 Europ Handelsges Anst filed Critical Europ Handelsges Anst
Publication of DK506876A publication Critical patent/DK506876A/da

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09CCIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00Apparatus 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
    • G09C1/06Apparatus 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
    • G09C1/10Apparatus 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Calculators And Similar Devices (AREA)
  • Telephone Function (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
DK506876A 1975-11-11 1976-11-10 Elektronisk chiffrerings og dechiffreringsapparat i form som en lommeregner DK506876A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1458775A CH592937A5 (da) 1975-11-11 1975-11-11

Publications (1)

Publication Number Publication Date
DK506876A true DK506876A (da) 1977-05-12

Family

ID=4402103

Family Applications (1)

Application Number Title Priority Date Filing Date
DK506876A DK506876A (da) 1975-11-11 1976-11-10 Elektronisk chiffrerings og dechiffreringsapparat i form som en lommeregner

Country Status (18)

Country Link
US (1) US4095046A (da)
JP (1) JPS5260543A (da)
AR (1) AR213832A1 (da)
BE (1) BE848211A (da)
BR (1) BR7607456A (da)
CA (1) CA1081852A (da)
CH (1) CH592937A5 (da)
DE (1) DE2647107A1 (da)
DK (1) DK506876A (da)
ES (1) ES452720A1 (da)
FI (1) FI60458C (da)
FR (1) FR2394853A1 (da)
GB (1) GB1540470A (da)
IT (1) IT1074062B (da)
NL (1) NL7612365A (da)
NO (1) NO147656C (da)
SE (1) SE415128B (da)
ZA (1) ZA766431B (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594261A5 (da) * 1975-11-20 1977-12-30 Europ Handelsges Anst
DE2706421C2 (de) * 1977-02-16 1979-03-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Einstellen von Schlüsseltextgeneratoren in Chiffriergeräten
US4303915A (en) * 1977-08-19 1981-12-01 Angelo George D Silent communicator
US4229817A (en) * 1978-04-28 1980-10-21 Datotek, Inc. Portable electronic cryptographic device
US4249180A (en) * 1978-09-20 1981-02-03 Northern Telecom Limited Past dependent microcomputer cipher apparatus
US4360892A (en) * 1979-02-22 1982-11-23 Microwriter Limited Portable word-processor
US4442506A (en) * 1980-09-18 1984-04-10 Microwriter Limited Portable word-processor
US4774684A (en) * 1985-01-31 1988-09-27 Canon Kabushiki Kaisha Electronic apparatus with a display means
US4965828A (en) * 1989-04-05 1990-10-23 Quadri Corporation Non-volatile semiconductor memory with SCRAM hold cycle prior to SCRAM-to-E2 PROM backup transfer
US5778071A (en) * 1994-07-12 1998-07-07 Information Resource Engineering, Inc. Pocket encrypting and authenticating communications device
US7171693B2 (en) * 2000-05-12 2007-01-30 Xtreamlok Pty Ltd Information security method and system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878332A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital crytographic system and method
US3878331A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital cryptographic system and method
FR2214208B1 (da) * 1973-01-12 1976-04-30 Teltest Rd Ets
NO760499L (da) * 1975-02-24 1976-08-25 Gretag Ag

Also Published As

Publication number Publication date
CA1081852A (en) 1980-07-15
FI763216A (da) 1977-05-12
NO763825L (da) 1977-05-12
FI60458B (fi) 1981-09-30
NO147656C (no) 1983-05-25
FR2394853B1 (da) 1982-12-03
NL7612365A (nl) 1977-05-13
BR7607456A (pt) 1977-09-20
FI60458C (fi) 1982-01-11
SE415128B (sv) 1980-09-08
GB1540470A (en) 1979-02-14
SE7612525L (sv) 1977-05-12
NO147656B (no) 1983-02-07
JPS5260543A (en) 1977-05-19
DE2647107A1 (de) 1977-05-18
US4095046A (en) 1978-06-13
IT1074062B (it) 1985-04-17
ES452720A1 (es) 1977-10-01
BE848211A (fr) 1977-03-01
ZA766431B (en) 1977-10-26
FR2394853A1 (fr) 1979-01-12
CH592937A5 (da) 1977-11-15
AR213832A1 (es) 1979-03-30

Similar Documents

Publication Publication Date Title
DK92676A (da) Kornformede brandhemmende materialer og disses anvendelse
BR7606254A (pt) Dispositivo mostrador eletronico
JPS5269539A (en) Electronic calculator
FR2302216A1 (fr) Dispositif pour maintenir et
DK506876A (da) Elektronisk chiffrerings og dechiffreringsapparat i form som en lommeregner
IT1053571B (it) Dispositivo di archiviazione e immagazzinamento di elaborati di calcolatore eletronico
JPS5213745A (en) Electronic calculator
IT1069792B (it) Contatore elettronico
DK165775A (da) Gelerings og fortykkelsesmidler
IT1077984B (it) Perfezionamento negli orologi elettronici
IT1073834B (it) Cronometro elettronico
DK517876A (da) Kodificerings og afkodificeringsapparat i form af en skrivemaskine
AT356423B (de) Elektronischer rechner
BR7607515A (pt) Aperfeicoamento em relogio eletronico
AT342336B (de) Elektronisches rechenwerk
BR7508626A (pt) Calculadora eletronica portatil
IT1050604B (it) Calcolatore elettronico
BR7607511A (pt) Aperfeicoamento em relogio eletronico
BR7607516A (pt) Aperfeicoamento em relogio eletronico
DK54775A (da) Punkturnal og venekateter med en sadan punkturnal
JPS5282044A (en) Electronic calculator
IT1080510B (it) Perfezionamento negli orologi elettronici
IT1073981B (it) Perfezionamento negli orologi elettronici
IT1073916B (it) Orologio eletronico
BR7607514A (pt) Aperfeicoamento em relogio eletronico

Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment