GB1549622A - Secure coded transmission systems - Google Patents

Secure coded transmission systems

Info

Publication number
GB1549622A
GB1549622A GB4293576A GB4293576A GB1549622A GB 1549622 A GB1549622 A GB 1549622A GB 4293576 A GB4293576 A GB 4293576A GB 4293576 A GB4293576 A GB 4293576A GB 1549622 A GB1549622 A GB 1549622A
Authority
GB
United Kingdom
Prior art keywords
transmission systems
coded transmission
secure coded
secure
systems
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
GB4293576A
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 filed Critical
Priority to GB4293576A priority Critical patent/GB1549622A/en
Publication of GB1549622A publication Critical patent/GB1549622A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
GB4293576A 1977-08-19 1977-08-19 Secure coded transmission systems Expired GB1549622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4293576A GB1549622A (en) 1977-08-19 1977-08-19 Secure coded transmission systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4293576A GB1549622A (en) 1977-08-19 1977-08-19 Secure coded transmission systems

Publications (1)

Publication Number Publication Date
GB1549622A true GB1549622A (en) 1979-08-08

Family

ID=10426613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4293576A Expired GB1549622A (en) 1977-08-19 1977-08-19 Secure coded transmission systems

Country Status (1)

Country Link
GB (1) GB1549622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695277A1 (en) * 1992-08-28 1994-03-04 Inst Francais Du Petrole Method and device for digitized transmission of signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695277A1 (en) * 1992-08-28 1994-03-04 Inst Francais Du Petrole Method and device for digitized transmission of signals
US5465270A (en) * 1992-08-28 1995-11-07 Institut Francais Du Petrole Process and device for the digitized transmission of signals

Similar Documents

Publication Publication Date Title
GB2011577B (en) Transmission systems
JPS5397346A (en) Data transmission system
JPS5430857A (en) Energy transmission system
GB2064025B (en) Hydromechanical transmission system
GB2005116B (en) Digital transmission system
GB1540570A (en) Radio transmission systems
GB2087042B (en) Transmission systems
GB2006491B (en) Data transmission system
GB2012526B (en) Digital transmission substitution systems
ZA782618B (en) Error-rejecting data transmission system
JPS53130909A (en) Double data transmission system
YU155478A (en) Data transmission system
GB2010643B (en) Facsimile transmission system
GB2001230B (en) Simulcast transmission system
JPS5442630A (en) Dc transmission system
JPS5498503A (en) Communication system encoding system
GB2011228B (en) Data transmission system
GB2000419B (en) Data transmission system
DE2861563D1 (en) Power transmission system
GB1540857A (en) Transmission systems
GB2016183B (en) Transmission systems
GB1549622A (en) Secure coded transmission systems
GB8331684D0 (en) Transmission systems
JPS5458017A (en) Information transmission system
JPS5464905A (en) Information transmission system

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee