BR8007222A - Instalacao para a transmissao de sinais de comando atraves de um canal de voz - Google Patents

Instalacao para a transmissao de sinais de comando atraves de um canal de voz

Info

Publication number
BR8007222A
BR8007222A BR8007222A BR8007222A BR8007222A BR 8007222 A BR8007222 A BR 8007222A BR 8007222 A BR8007222 A BR 8007222A BR 8007222 A BR8007222 A BR 8007222A BR 8007222 A BR8007222 A BR 8007222A
Authority
BR
Brazil
Prior art keywords
installation
transmission
voice channel
signs
command
Prior art date
Application number
BR8007222A
Other languages
English (en)
Portuguese (pt)
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 BR8007222A publication Critical patent/BR8007222A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)
BR8007222A 1979-11-07 1980-11-06 Instalacao para a transmissao de sinais de comando atraves de um canal de voz BR8007222A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8007222A true BR8007222A (pt) 1981-05-19

Family

ID=4357749

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8007222A BR8007222A (pt) 1979-11-07 1980-11-06 Instalacao para a transmissao de sinais de comando atraves de um canal de voz

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154961A (ja) * 1982-03-10 1983-09-14 Fujitsu Ltd 秘匿通話方法
JPS5961242A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd 秘匿通信システム
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 (fr) * 1987-10-21 1989-04-26 Siemens Aktiengesellschaft Österreich Dispositif de transmission brouillée de signaux analogiques

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 (fr) * 1964-01-09 1900-01-01

Also Published As

Publication number Publication date
ES496115A0 (es) 1981-11-16
EP0028688A1 (fr) 1981-05-20
NO803344L (no) 1981-05-08
ZA806589B (en) 1981-10-28
AR224912A1 (es) 1982-01-29
ES8200802A1 (es) 1981-11-16
JPS5676646A (en) 1981-06-24

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: H04K 1/00 (2006.01)