GB1084382A - Telecommunication pulse repeater - Google Patents

Telecommunication pulse repeater

Info

Publication number
GB1084382A
GB1084382A GB1476765A GB1476765A GB1084382A GB 1084382 A GB1084382 A GB 1084382A GB 1476765 A GB1476765 A GB 1476765A GB 1476765 A GB1476765 A GB 1476765A GB 1084382 A GB1084382 A GB 1084382A
Authority
GB
United Kingdom
Prior art keywords
relay
loop
line
april
followed
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
GB1476765A
Inventor
Keith Ronald Frederic Husbands
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones 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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB1476765A priority Critical patent/GB1084382A/en
Publication of GB1084382A publication Critical patent/GB1084382A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
    • H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

1,084,382. Automatic exchange systems. ERICSSON TELEPHONES Ltd. April 6, 1966 [April 7, 1965], No. 14767/65. Heading H4K. A pulse repeater, for repeating and correcting pulses which have been distorted through transmission along long lines, comprises a first line relay A having two aiding windings, connected respectively in series with the two wires of an incoming line l, and a third opposing winding connected in series with a contact R1 of a pulse repeating relay R. When loop current flows, A comes up followed by R whereby the outgoing loop 2 is closed and an opposing field, which is insufficient to have any effect as yet, is produced in relay A. When the loop l is broken, A falls back quickly due to the opposing field and is followed by R. The capacitor C tends to maintain A released since it is charged via A's third winding whenever contact R1 is open. Diodes D2 and D3 serve to suppress transients on the line.
GB1476765A 1965-04-07 1965-04-07 Telecommunication pulse repeater Expired GB1084382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1476765A GB1084382A (en) 1965-04-07 1965-04-07 Telecommunication pulse repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1476765A GB1084382A (en) 1965-04-07 1965-04-07 Telecommunication pulse repeater

Publications (1)

Publication Number Publication Date
GB1084382A true GB1084382A (en) 1967-09-20

Family

ID=10047133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1476765A Expired GB1084382A (en) 1965-04-07 1965-04-07 Telecommunication pulse repeater

Country Status (1)

Country Link
GB (1) GB1084382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660609A (en) * 1969-08-22 1972-05-02 Communications Systems Corp Subscriber long line extender
US4087644A (en) * 1976-02-02 1978-05-02 Nippon Tsu Shin Kogyo K.K. Dial impulse relay circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660609A (en) * 1969-08-22 1972-05-02 Communications Systems Corp Subscriber long line extender
US4087644A (en) * 1976-02-02 1978-05-02 Nippon Tsu Shin Kogyo K.K. Dial impulse relay circuit

Similar Documents

Publication Publication Date Title
GB1067210A (en) Telephone hold program system
GB1154404A (en) Method Of and System For Remote-Location Computer Communication
GB1185678A (en) A Telephone System
GB1084382A (en) Telecommunication pulse repeater
GB1122924A (en) Circuit arrangement for a centrally controlled exchange, serving in common a telephone and a teleprinting network
GB1156543A (en) Persistant Alarm Message Sender
GB647597A (en) Telecommunication exchange
GB1162766A (en) Improvements in or relating to Circuit Arrangements for d.c. Supplied Telephone Transmission Lines
GB1019480A (en) Circuit arrangement to release registers in telecommunication, particularly telephone systems
SE311939B (en)
GB543065A (en) Improvements in or relating to telephone systems
GB935113A (en) Improvements in or relating to telephone exchange systems
GB645871A (en) Telecommunication exchange and system
GB1162047A (en) Automatic Telephone System
GB1177958A (en) Improvements in or relating to Telephone Signalling
GB870068A (en) Improvements in or relating to automatic telephone switching systems
GB596662A (en) Arrangement for changing-over the speaking direction in two-way loud speaker telephone systems
GB1032966A (en) Private automatic branch exchanges
GB1043072A (en) Circuit arrangement for the dial pulse receiving facilities in telephone register systems
GB955299A (en) A selector telephone system
GB1207467A (en) Improvements to digital signal transmission systems in telecommunication exchanges
GB1402399A (en) Telephone exchange circuits
GB1049476A (en) Voice-frequency key-dialling method
GB1049359A (en) Improvements in or relating to electrical telecommunication circuits
GB1131663A (en) Improvements in or relating to telephone systems