ZA823474B - Process for the determination of the state of an on-off modulated alternating signal in a disturbed medium - Google Patents

Process for the determination of the state of an on-off modulated alternating signal in a disturbed medium

Info

Publication number
ZA823474B
ZA823474B ZA823474A ZA823474A ZA823474B ZA 823474 B ZA823474 B ZA 823474B ZA 823474 A ZA823474 A ZA 823474A ZA 823474 A ZA823474 A ZA 823474A ZA 823474 B ZA823474 B ZA 823474B
Authority
ZA
South Africa
Prior art keywords
determination
state
alternating signal
modulated alternating
disturbed
Prior art date
Application number
ZA823474A
Other languages
English (en)
Inventor
Jean Francois Gabillet
Original Assignee
Jeumont Schneider
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 Jeumont Schneider filed Critical Jeumont Schneider
Publication of ZA823474B publication Critical patent/ZA823474B/xx

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
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/24—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits
    • B61L3/243—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits using alternating current

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
ZA823474A 1981-05-19 1982-05-19 Process for the determination of the state of an on-off modulated alternating signal in a disturbed medium ZA823474B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8109919A FR2506544A1 (fr) 1981-05-19 1981-05-19 Procede de determination de l'etat d'un signal alternatif module en tout ou rien en milieu perturbe

Publications (1)

Publication Number Publication Date
ZA823474B true ZA823474B (en) 1983-03-30

Family

ID=9258620

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA823474A ZA823474B (en) 1981-05-19 1982-05-19 Process for the determination of the state of an on-off modulated alternating signal in a disturbed medium

Country Status (8)

Country Link
US (1) US4555791A (ref)
EP (1) EP0065904B1 (ref)
AU (1) AU553426B2 (ref)
BR (1) BR8202530A (ref)
CA (1) CA1189917A (ref)
DE (1) DE3265208D1 (ref)
FR (1) FR2506544A1 (ref)
ZA (1) ZA823474B (ref)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214920A1 (de) * 1992-05-11 1993-11-18 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Sensorsignal-Aufbereitung
CN101036178A (zh) * 2004-10-04 2007-09-12 皇家飞利浦电子股份有限公司 矩阵显示装置的发光单元的亮度控制
BE1019445A3 (fr) * 2010-08-11 2012-07-03 Reza Yves Procede d'extraction d'information audio.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752325A (en) * 1928-11-15 1930-04-01 American Telephone & Telegraph Reduction of static interference in carrier systems
DE540850C (de) * 1930-01-03 1934-01-05 Telefunken Gmbh Verfahren zur gleichzeitigen UEbermittlung von Buchstaben- und Bildtelegraphie auf dem gleichen drahtlosen Verbindungswege
US2070418A (en) * 1933-05-19 1937-02-09 Rca Corp Multiplex cable code telegraphy with diversity reception
BE501695A (ref) * 1945-03-15
US2602852A (en) * 1947-05-23 1952-07-08 Motorola Inc Selective calling system
BE486300A (ref) * 1947-07-09
US3413608A (en) * 1964-06-12 1968-11-26 Warwick Electronics Inc Noise immune detector
US3571522A (en) * 1968-11-29 1971-03-16 Bell Telephone Labor Inc Tone detector
DE2444251A1 (de) * 1974-09-16 1976-03-25 Siemens Ag Gleisstromkreis, insbesondere fuer gleichstrombahnen mit chopper-gesteuerten triebfahrzeugen
FR2302640A1 (fr) * 1975-02-25 1976-09-24 Thomson Csf Systeme de transmission d'informations utilisant une modulation par deplacement de frequence

Also Published As

Publication number Publication date
EP0065904A1 (fr) 1982-12-01
CA1189917A (fr) 1985-07-02
US4555791A (en) 1985-11-26
FR2506544B1 (ref) 1983-10-28
EP0065904B1 (fr) 1985-08-07
DE3265208D1 (en) 1985-09-12
AU8353582A (en) 1982-11-25
BR8202530A (pt) 1983-04-19
FR2506544A1 (fr) 1982-11-26
AU553426B2 (en) 1986-07-17

Similar Documents

Publication Publication Date Title
DE3276347D1 (en) Amplitude modulator
GB2139640B (en) Recording liquid
GB2148916B (en) Recording liquid
GB8425336D0 (en) Recording liquid
GB8407504D0 (en) Recording liquid
DE3467961D1 (en) Zero if frequency modulator
JPS57129788A (en) Electrochromic-printing medium
YU112483A (en) Process for prooving ecterolytic and/or proteolytic enzymes
JPS57193166A (en) Frequency modulation transmitter
EP0123427A3 (en) Ultrasonic medium characterization
JPS5783907A (en) Signal demodulator frequency modulated
AU2257983A (en) Cream-state fluid container
DE3463669D1 (en) Recording liquid
GB2138212B (en) Signal coupling apparatus
GB2099245B (en) Demodulating an amplitude modulated signal
GB2151093B (en) Frequency modulation detection apparatus
DE3469082D1 (en) Magnetic-recording medium
DE3477079D1 (en) Magnetic-recording medium
DE3469081D1 (en) Magnetic-recording medium
ZA823474B (en) Process for the determination of the state of an on-off modulated alternating signal in a disturbed medium
DE3264672D1 (en) Magnetic-recording medium
DE3263019D1 (en) Surface modified ferromagnetic chromium dioxide
JPS573110A (en) Liquid pressure signal controller
JPS57166705A (en) Demodulator for frequency modulation signal
GB8310352D0 (en) Ultra-sonic coupling medium