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FR1216578A - Dispositif de transmission par modulation d'ondes porteuses - Google Patents

Dispositif de transmission par modulation d'ondes porteuses

Info

Publication number
FR1216578A
FR1216578A FR781334A FR781334A FR1216578A FR 1216578 A FR1216578 A FR 1216578A FR 781334 A FR781334 A FR 781334A FR 781334 A FR781334 A FR 781334A FR 1216578 A FR1216578 A FR 1216578A
Authority
FR
France
Prior art keywords
transmission device
carrier wave
wave modulation
modulation transmission
carrier
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
FR781334A
Other languages
English (en)
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.)
SPX Technologies Inc
Original Assignee
General Railway Signal Co
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 General Railway Signal Co filed Critical General Railway Signal Co
Application granted granted Critical
Publication of FR1216578A publication Critical patent/FR1216578A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/08—Circuitry
    • B61L7/088—Common line wire control using series of coded pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR781334A 1957-12-27 1958-12-10 Dispositif de transmission par modulation d'ondes porteuses Expired FR1216578A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1216578XA 1957-12-27 1957-12-27

Publications (1)

Publication Number Publication Date
FR1216578A true FR1216578A (fr) 1960-04-26

Family

ID=22398036

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781334A Expired FR1216578A (fr) 1957-12-27 1958-12-10 Dispositif de transmission par modulation d'ondes porteuses

Country Status (1)

Country Link
FR (1) FR1216578A (fr)

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