GB368924A - Means for securing secrecy in electric communication systems - Google Patents

Means for securing secrecy in electric communication systems

Info

Publication number
GB368924A
GB368924A GB2673/31A GB267331A GB368924A GB 368924 A GB368924 A GB 368924A GB 2673/31 A GB2673/31 A GB 2673/31A GB 267331 A GB267331 A GB 267331A GB 368924 A GB368924 A GB 368924A
Authority
GB
United Kingdom
Prior art keywords
communication systems
electric communication
bands
securing secrecy
secrecy
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
GB2673/31A
Other languages
English (en)
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB368924A publication Critical patent/GB368924A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Mobile Radio Communication Systems (AREA)
GB2673/31A 1930-02-28 1931-01-27 Means for securing secrecy in electric communication systems Expired GB368924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE633899T 1930-02-28

Publications (1)

Publication Number Publication Date
GB368924A true GB368924A (en) 1932-03-17

Family

ID=34812927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2673/31A Expired GB368924A (en) 1930-02-28 1931-01-27 Means for securing secrecy in electric communication systems

Country Status (3)

Country Link
DE (1) DE633899C (enrdf_load_stackoverflow)
GB (1) GB368924A (enrdf_load_stackoverflow)
NL (1) NL32192C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL32192C (enrdf_load_stackoverflow)
DE633899C (de) 1936-08-13

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