FR1504926A - Perfectionnements aux appareils de transmission de données - Google Patents

Perfectionnements aux appareils de transmission de données

Info

Publication number
FR1504926A
FR1504926A FR86598A FR86598A FR1504926A FR 1504926 A FR1504926 A FR 1504926A FR 86598 A FR86598 A FR 86598A FR 86598 A FR86598 A FR 86598A FR 1504926 A FR1504926 A FR 1504926A
Authority
FR
France
Prior art keywords
line
pulses
light
variations
current
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
FR86598A
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Application granted granted Critical
Publication of FR1504926A publication Critical patent/FR1504926A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0069—Details of emergency protective circuit arrangements concerning transmission of signals by means of light or heat rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
FR86598A 1965-12-08 1966-12-08 Perfectionnements aux appareils de transmission de données Expired FR1504926A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5210465A GB1122068A (en) 1965-12-08 1965-12-08 Improvements relating to data transmission apparatus

Publications (1)

Publication Number Publication Date
FR1504926A true FR1504926A (fr) 1967-12-08

Family

ID=10462659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR86598A Expired FR1504926A (fr) 1965-12-08 1966-12-08 Perfectionnements aux appareils de transmission de données

Country Status (2)

Country Link
FR (1) FR1504926A (fr)
GB (1) GB1122068A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292628A (en) * 1978-08-28 1981-09-29 Chubb Industries Limited Fibre optic security system
JPS5946859A (ja) * 1982-09-10 1984-03-16 Matsushita Electric Works Ltd 電流検出装置

Also Published As

Publication number Publication date
GB1122068A (en) 1968-07-31

Similar Documents

Publication Publication Date Title
GB1207386A (en) A signal transmitting and receiving system
GB1231237A (fr)
GB985828A (en) Improvements in or relating to the demodulation of pulse-position-modulated signals
GB1330329A (en) Repeater devices
DE3581687D1 (de) Optischer empfaenger.
ES455144A1 (es) Aparato detector de umbral de se/al.
FR1504926A (fr) Perfectionnements aux appareils de transmission de données
ES457345A1 (es) Perfeccionamientos en la disposicion de conexiones para la deteccion de senales perturbadoras en aparatos receptores.
GB1499127A (en) Circuit for detecting the logic state changes of a digital waveform
GB1144203A (en) Dual channel well logging system
US3492574A (en) System for transferring an electric current parameter from high voltage to low voltage
US3068462A (en) Analog to digital converter
GB1426276A (en) Optical communication system
GB1030102A (en) High frequency sampler
GB1286974A (en) Automatic synchronising system
GB1015095A (en) Selective amplifier gain control arrangement
SU671029A1 (ru) Преобразователь частоты в напр жение
SU373874A1 (ru) Всесоюзная
SU560334A1 (ru) Преобразователь частоты следовани импульсов в напр жение
GB1099542A (en) Method and apparatus for measuring breakdown voltages of diodes and transistors
GB1141524A (en) Information link for high voltage power lines
SU409363A1 (ru) Амплитудно-импульсный преобразователь
GB1079162A (en) Improvements in and relating to electric cables and apparatus for use therein
GB1302452A (fr)
SU369499A1 (ru) Регистрирующий прибор