CH379579A - Device for the disguised transmission of speech signals - Google Patents

Device for the disguised transmission of speech signals

Info

Publication number
CH379579A
CH379579A CH481960A CH481960A CH379579A CH 379579 A CH379579 A CH 379579A CH 481960 A CH481960 A CH 481960A CH 481960 A CH481960 A CH 481960A CH 379579 A CH379579 A CH 379579A
Authority
CH
Switzerland
Prior art keywords
disguised
transmission
speech signals
speech
signals
Prior art date
Application number
CH481960A
Other languages
German (de)
Inventor
Schnyder Thomas
Original Assignee
Patelhold Patentverwertung
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 Patentverwertung filed Critical Patelhold Patentverwertung
Priority to CH481960A priority Critical patent/CH379579A/en
Priority to DE1960P0024996 priority patent/DE1114548B/en
Priority to FR69041357A priority patent/FR1284800A/en
Priority to GB1507761A priority patent/GB929251A/en
Publication of CH379579A publication Critical patent/CH379579A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/006—Secret communication by varying or inverting the phase, at periodic or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Telephonic Communication Services (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
CH481960A 1960-04-28 1960-04-28 Device for the disguised transmission of speech signals CH379579A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH481960A CH379579A (en) 1960-04-28 1960-04-28 Device for the disguised transmission of speech signals
DE1960P0024996 DE1114548B (en) 1960-04-28 1960-05-13 Device for the disguised transmission of speech signals
FR69041357A FR1284800A (en) 1960-04-28 1961-03-15 Coded transmission device for telephone signals
GB1507761A GB929251A (en) 1960-04-28 1961-04-26 Arrangement for the secret transmission of intelligence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH481960A CH379579A (en) 1960-04-28 1960-04-28 Device for the disguised transmission of speech signals

Publications (1)

Publication Number Publication Date
CH379579A true CH379579A (en) 1964-07-15

Family

ID=4283079

Family Applications (1)

Application Number Title Priority Date Filing Date
CH481960A CH379579A (en) 1960-04-28 1960-04-28 Device for the disguised transmission of speech signals

Country Status (4)

Country Link
CH (1) CH379579A (en)
DE (1) DE1114548B (en)
FR (1) FR1284800A (en)
GB (1) GB929251A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746799A (en) * 1971-09-27 1973-07-17 Us Navy Method and apparatus for encoding and decoding analog signals
CN108234062A (en) * 2017-12-19 2018-06-29 中国电子科技集团公司第三十研究所 A kind of safe transmission method based on signal characteristic complication of eating dishes without rice or wine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH311424A (en) * 1950-04-22 1955-11-30 Gretener Edgar Ing Dr Method for the secrecy of speech in communication channels.
GB780866A (en) * 1954-11-18 1957-08-07 Marconi Wireless Telegraph Co Improvements in or relating to secret telephone systems

Also Published As

Publication number Publication date
GB929251A (en) 1963-06-19
FR1284800A (en) 1962-02-16
DE1114548B (en) 1961-10-05

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