GB1179751A - Improvements in or relating to the Transmission of Analogue Information - Google Patents

Improvements in or relating to the Transmission of Analogue Information

Info

Publication number
GB1179751A
GB1179751A GB2863867A GB2863867A GB1179751A GB 1179751 A GB1179751 A GB 1179751A GB 2863867 A GB2863867 A GB 2863867A GB 2863867 A GB2863867 A GB 2863867A GB 1179751 A GB1179751 A GB 1179751A
Authority
GB
United Kingdom
Prior art keywords
information
cycle
unique
pilot
items
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
GB2863867A
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.)
Compagnie des Freins et Signaux Westinghouse SA
Original Assignee
Compagnie des Freins et Signaux Westinghouse SA
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 Compagnie des Freins et Signaux Westinghouse SA filed Critical Compagnie des Freins et Signaux Westinghouse SA
Publication of GB1179751A publication Critical patent/GB1179751A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/125—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using short-range radio transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/10—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by frequencies or phase of current or voltage in transmission link

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)

Abstract

1,179,751. Electric selective signalling. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. 21 June, 1967 [19 July, 1966], No. 28638/67. Heading G4H. [Also in Division H4] In a transmission system continuously variable items of analogue information are transmitted by means of a cycle of signals. The cycle contains as many time slots as there are items and each time slot contains a signal of unique frequency whose duration is determined by the item. The intervals between successive unique frequencies are filled by a pilot frequency. At the receiver the unique frequency corresponding to a particular item of information is selected for control purposes, and the pilot is selected for use in a monitoring system.
GB2863867A 1966-07-19 1967-06-21 Improvements in or relating to the Transmission of Analogue Information Expired GB1179751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69953A FR1493672A (en) 1966-07-19 1966-07-19 Information transmission system for continuous commands, more particularly usable for remote control of locomotives

Publications (1)

Publication Number Publication Date
GB1179751A true GB1179751A (en) 1970-01-28

Family

ID=8613573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2863867A Expired GB1179751A (en) 1966-07-19 1967-06-21 Improvements in or relating to the Transmission of Analogue Information

Country Status (2)

Country Link
FR (1) FR1493672A (en)
GB (1) GB1179751A (en)

Also Published As

Publication number Publication date
FR1493672A (en) 1967-09-01

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