GB705723A - Improvements in or relating to signal impulse receiving devices for telephone lines - Google Patents

Improvements in or relating to signal impulse receiving devices for telephone lines

Info

Publication number
GB705723A
GB705723A GB27331/51A GB2733151A GB705723A GB 705723 A GB705723 A GB 705723A GB 27331/51 A GB27331/51 A GB 27331/51A GB 2733151 A GB2733151 A GB 2733151A GB 705723 A GB705723 A GB 705723A
Authority
GB
United Kingdom
Prior art keywords
impulse
release
receiver
relay
over
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
GB27331/51A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB705723A publication Critical patent/GB705723A/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
    • H04Q1/48—Induced-current signalling arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Interface Circuits In Exchanges (AREA)
GB27331/51A 1950-11-21 1951-11-21 Improvements in or relating to signal impulse receiving devices for telephone lines Expired GB705723A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE705723X 1950-11-21
SE2712571X 1950-11-21
SE1048924X 1950-11-21

Publications (1)

Publication Number Publication Date
GB705723A true GB705723A (en) 1954-03-17

Family

ID=27354992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27331/51A Expired GB705723A (en) 1950-11-21 1951-11-21 Improvements in or relating to signal impulse receiving devices for telephone lines

Country Status (4)

Country Link
US (1) US2712571A (enExample)
BE (1) BE507213A (enExample)
GB (1) GB705723A (enExample)
NL (1) NL81447C (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL289634A (enExample) * 1962-03-01
DE1287162B (de) * 1964-08-17 1969-01-16 Int Standard Electric Corp Verfahren und Schaltungsanordnung zur Waehlziffernuebertragung ueber eine zwei Fernsprechzentralen verbindende zweiadrige Verbindungsleitung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186315A (en) * 1937-04-19 1940-01-09 Siemens Ag Telephone system
US2236797A (en) * 1937-08-02 1941-04-01 Fides Gmbh Telephone system

Also Published As

Publication number Publication date
NL81447C (enExample)
US2712571A (en) 1955-07-05
BE507213A (enExample)

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