FR2302638B1 - - Google Patents

Info

Publication number
FR2302638B1
FR2302638B1 FR7605693A FR7605693A FR2302638B1 FR 2302638 B1 FR2302638 B1 FR 2302638B1 FR 7605693 A FR7605693 A FR 7605693A FR 7605693 A FR7605693 A FR 7605693A FR 2302638 B1 FR2302638 B1 FR 2302638B1
Authority
FR
France
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
FR7605693A
Other versions
FR2302638A1 (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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of FR2302638A1 publication Critical patent/FR2302638A1/fr
Application granted granted Critical
Publication of FR2302638B1 publication Critical patent/FR2302638B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
FR7605693A 1975-02-26 1976-02-24 Procede et dispositif pour la transmission codee d'informations Granted FR2302638A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH243275A CH581412A5 (fr) 1975-02-26 1975-02-26

Publications (2)

Publication Number Publication Date
FR2302638A1 FR2302638A1 (fr) 1976-09-24
FR2302638B1 true FR2302638B1 (fr) 1980-05-30

Family

ID=4233667

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605693A Granted FR2302638A1 (fr) 1975-02-26 1976-02-24 Procede et dispositif pour la transmission codee d'informations

Country Status (6)

Country Link
US (1) US4160123A (fr)
JP (1) JPS601789B2 (fr)
CH (1) CH581412A5 (fr)
DE (1) DE2515884C2 (fr)
FR (1) FR2302638A1 (fr)
GB (1) GB1528273A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443660A (en) * 1980-02-04 1984-04-17 Rockwell International Corporation System and method for encrypting a voice signal
CA1338158C (fr) * 1982-07-15 1996-03-12 John D. Lowry Chiffrement et dechiffrement (brouillage et debrouillage) de signaux video
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals
US5101432A (en) * 1986-03-17 1992-03-31 Cardinal Encryption Systems Ltd. Signal encryption
JPS6396091U (fr) * 1986-12-11 1988-06-21
US6408019B1 (en) 1997-12-29 2002-06-18 Georgia Tech Research Corporation System and method for communication using noise
US7930331B2 (en) * 2005-09-26 2011-04-19 Temarylogic Llc Encipherment of digital sequences by reversible transposition methods
CN113296061A (zh) * 2021-05-19 2021-08-24 北京无线电测量研究所 一种同步脉冲信号的传输方法、系统和电子设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731197A (en) * 1969-12-15 1973-05-01 Ritt Lab Inc Secrecy communication system
US3657699A (en) * 1970-06-30 1972-04-18 Ibm Multipath encoder-decoder arrangement
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen
US3921151A (en) * 1971-06-21 1975-11-18 Patelhold Patentwerwertungs & Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train
GB1353693A (en) * 1971-12-02 1974-05-22 Mullard Ltd Privacy transmission system
CH558993A (de) * 1973-03-19 1975-02-14 Patelhold Patentverwertung Verfahren und einrichtung zur verschluesselten nachrichtenuebertragung.

Also Published As

Publication number Publication date
CH581412A5 (fr) 1976-10-29
JPS51109707A (fr) 1976-09-28
DE2515884A1 (de) 1976-09-09
GB1528273A (en) 1978-10-11
FR2302638A1 (fr) 1976-09-24
US4160123A (en) 1979-07-03
DE2515884C2 (de) 1983-12-15
JPS601789B2 (ja) 1985-01-17

Similar Documents

Publication Publication Date Title
DE2553931C3 (fr)
FR2297919B1 (fr)
JPS5521514Y2 (fr)
JPS5118276A (fr)
FR2314113B1 (fr)
JPS51149773U (fr)
JPS51136123U (fr)
JPS51117657U (fr)
JPS51115582U (fr)
JPS51111276U (fr)
JPS5197804A (fr)
CH601319A5 (fr)
CH599364A5 (fr)
CH605279A5 (fr)
CH604907A5 (fr)
CH604484A5 (fr)
CH604443A5 (fr)
CH604117A5 (fr)
CH602908A5 (fr)
CH602578A5 (fr)
CH602475A5 (fr)
CH602336A5 (fr)
CH602058A5 (fr)
CH601761A5 (fr)
CH606269A5 (fr)

Legal Events

Date Code Title Description
ST Notification of lapse