ZA806589B - Installation for the transmission of control signals by means of a voice channel - Google Patents

Installation for the transmission of control signals by means of a voice channel

Info

Publication number
ZA806589B
ZA806589B ZA00806589A ZA806589A ZA806589B ZA 806589 B ZA806589 B ZA 806589B ZA 00806589 A ZA00806589 A ZA 00806589A ZA 806589 A ZA806589 A ZA 806589A ZA 806589 B ZA806589 B ZA 806589B
Authority
ZA
South Africa
Prior art keywords
installation
transmission
control signals
voice channel
voice
Prior art date
Application number
ZA00806589A
Inventor
H Heller
Original Assignee
Crypto 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 Crypto Ag filed Critical Crypto Ag
Publication of ZA806589B publication Critical patent/ZA806589B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
ZA00806589A 1979-11-07 1980-10-27 Installation for the transmission of control signals by means of a voice channel ZA806589B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH997679 1979-11-07

Publications (1)

Publication Number Publication Date
ZA806589B true ZA806589B (en) 1981-10-28

Family

ID=4357749

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806589A ZA806589B (en) 1979-11-07 1980-10-27 Installation for the transmission of control signals by means of a voice channel

Country Status (7)

Country Link
EP (1) EP0028688A1 (en)
JP (1) JPS5676646A (en)
AR (1) AR224912A1 (en)
BR (1) BR8007222A (en)
ES (1) ES8200802A1 (en)
NO (1) NO803344L (en)
ZA (1) ZA806589B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154961A (en) * 1982-03-10 1983-09-14 Fujitsu Ltd Connecting system of privacy telephone set
JPS5961242A (en) * 1982-09-30 1984-04-07 Fujitsu Ltd Secret communication system
US4815128A (en) * 1986-07-03 1989-03-21 Motorola, Inc. Gateway system and method for interconnecting telephone calls with a digital voice protected radio network
EP0313029A1 (en) * 1987-10-21 1989-04-26 Siemens Aktiengesellschaft Österreich Apparatus for scrambled transmission of analog signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542183A (en) * 1948-07-10 1951-02-20 Bell Telephone Labor Inc Transmission privacy synchronizing and equalizing system
GB1051791A (en) * 1964-01-09 1900-01-01

Also Published As

Publication number Publication date
JPS5676646A (en) 1981-06-24
BR8007222A (en) 1981-05-19
AR224912A1 (en) 1982-01-29
NO803344L (en) 1981-05-08
ES496115A0 (en) 1981-11-16
ES8200802A1 (en) 1981-11-16
EP0028688A1 (en) 1981-05-20

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