AT281911B - Einrichtung zur gesicherten Übertragung von Informationen - Google Patents

Einrichtung zur gesicherten Übertragung von Informationen

Info

Publication number
AT281911B
AT281911B AT684068A AT684068A AT281911B AT 281911 B AT281911 B AT 281911B AT 684068 A AT684068 A AT 684068A AT 684068 A AT684068 A AT 684068A AT 281911 B AT281911 B AT 281911B
Authority
AT
Austria
Prior art keywords
information
secure transmission
secure
transmission
Prior art date
Application number
AT684068A
Other languages
English (en)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of AT281911B publication Critical patent/AT281911B/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • G08C25/02—Arrangements for preventing or correcting errors; Monitoring arrangements by signalling back receiving station to transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/08—Calling by using continuous AC
    • H04Q9/12—Calling by using continuous AC using combinations of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/14—Calling by using pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Selective Calling Equipment (AREA)
AT684068A 1967-09-29 1968-07-16 Einrichtung zur gesicherten Übertragung von Informationen AT281911B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0094710 1967-09-29

Publications (1)

Publication Number Publication Date
AT281911B true AT281911B (de) 1970-06-10

Family

ID=6987742

Family Applications (1)

Application Number Title Priority Date Filing Date
AT684068A AT281911B (de) 1967-09-29 1968-07-16 Einrichtung zur gesicherten Übertragung von Informationen

Country Status (4)

Country Link
AT (1) AT281911B (de)
BE (1) BE721447A (de)
CH (1) CH494666A (de)
DE (1) DE1605390B2 (de)

Also Published As

Publication number Publication date
DE1605390A1 (de) 1970-11-05
BE721447A (de) 1969-03-03
CH494666A (de) 1970-08-15
DE1605390B2 (de) 1973-06-14

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee