GB1298835A - Electronic modulation retransmitter device - Google Patents

Electronic modulation retransmitter device

Info

Publication number
GB1298835A
GB1298835A GB59654/69A GB5965469A GB1298835A GB 1298835 A GB1298835 A GB 1298835A GB 59654/69 A GB59654/69 A GB 59654/69A GB 5965469 A GB5965469 A GB 5965469A GB 1298835 A GB1298835 A GB 1298835A
Authority
GB
United Kingdom
Prior art keywords
conduct
capacitor
current
signal
dec
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
GB59654/69A
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Compagnie Industrielle de Telecommunication CIT Alcatel 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 Alcatel CIT SA, Compagnie Industrielle de Telecommunication CIT Alcatel SA filed Critical Alcatel CIT SA
Publication of GB1298835A publication Critical patent/GB1298835A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/22—Repeaters for converting two wires to four wires; Repeaters for converting single current to double current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Radio Relay Systems (AREA)
  • Dc Digital Transmission (AREA)

Abstract

1298835 Binary switching circuits; telegraphy COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT - ALCATEL 5 Dec 1968 [23 Dec 1968] 59654/69 Headings H3T and H4P Momentary interruptions of a double current telegraph signal are removed by a circuit comprising two oppositely disected diodes D1, D2 in series with the receiving line L, two transistors controlling an output switch and having their inputs connected across respective diodes and a time constant circuit for maintaining the output during interruptions. A negative current at L passes through D1 to make T2 conduct and rapidly discharge a capacitor C. A positive current at L causes T 1 and T 3 to conduct to rapidly charge the capacitor and to make the output switch T 4 conduct. If the signal current is interrupted, due for example to the inter mediate position of a telegraph sending relay or between signal elements of the same polarity, both charge and discharge transistors T 2 and T 3 are non-conductive and the capacitor holds the output transistor T 4 in its existing state.
GB59654/69A 1968-12-23 1969-12-05 Electronic modulation retransmitter device Expired GB1298835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR180133 1968-12-23

Publications (1)

Publication Number Publication Date
GB1298835A true GB1298835A (en) 1972-12-06

Family

ID=8658893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB59654/69A Expired GB1298835A (en) 1968-12-23 1969-12-05 Electronic modulation retransmitter device

Country Status (9)

Country Link
US (1) US3643026A (en)
JP (1) JPS5031763B1 (en)
BE (1) BE743031A (en)
CH (1) CH497824A (en)
DE (1) DE1964286C3 (en)
FR (1) FR1604879A (en)
GB (1) GB1298835A (en)
NL (1) NL161640C (en)
SE (1) SE353829B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710022A (en) * 1970-01-21 1973-01-09 Lynch Communication Systems Sampling and retiming circuit for pcm repeaters
US8948233B2 (en) * 2009-12-15 2015-02-03 Panasonic Intellectual Property Corporation Of America Wireless relaying device, wireless transmission device, and wireless relaying method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071751B (en) * 1959-12-24 Siemens S. Haiskie Aktiiengesellschaff, Berlin und München Circuit arrangement for converting double current symbols to single current symbols
DE1115292B (en) * 1959-10-09 1961-10-19 Telefunken Patent Arrangement for bounce-free closing and opening of a circuit
NL278225A (en) * 1961-05-10
US3180935A (en) * 1962-02-20 1965-04-27 Weaver Howard Shanklin High speed pulse repeater
FR1387242A (en) * 1963-12-17 1965-01-29 Telecomm Electronique Aeronaut Solid state electronic relay, usable in particular as a telegraph relay
FR1405994A (en) * 1964-06-03 1965-07-16 Cit Alcatel Magnetoelectronic delay device
FR1500866A (en) * 1966-06-21 1967-11-10 Cit Alcatel Electronic modulation reception device usable in particular for telegraphs
US3470482A (en) * 1967-05-31 1969-09-30 Westinghouse Electric Corp Video pulse sample and hold circuitry

Also Published As

Publication number Publication date
BE743031A (en) 1970-06-12
NL6919170A (en) 1970-06-25
SE353829B (en) 1973-02-12
FR1604879A (en) 1972-04-17
DE1964286C3 (en) 1978-09-21
NL161640C (en) 1980-02-15
US3643026A (en) 1972-02-15
DE1964286B2 (en) 1978-01-26
CH497824A (en) 1970-10-15
DE1964286A1 (en) 1970-07-30
NL161640B (en) 1979-09-17
JPS5031763B1 (en) 1975-10-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee