GB869373A - Improvements in or relating to electrical signalling systems - Google Patents

Improvements in or relating to electrical signalling systems

Info

Publication number
GB869373A
GB869373A GB1520358A GB1520358A GB869373A GB 869373 A GB869373 A GB 869373A GB 1520358 A GB1520358 A GB 1520358A GB 1520358 A GB1520358 A GB 1520358A GB 869373 A GB869373 A GB 869373A
Authority
GB
United Kingdom
Prior art keywords
count
signal
counter
elements
pam
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
GB1520358A
Other languages
English (en)
Inventor
Thomas Harold Clark
John Montgomery Robins
Ronald Greer
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.)
British Telecommunications PLC
British Telecommunications Research Ltd
Original Assignee
British Telecommunications PLC
British Telecommunications Research 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
Priority to NL121620D priority Critical patent/NL121620C/xx
Priority to NL239106D priority patent/NL239106A/xx
Application filed by British Telecommunications PLC, British Telecommunications Research Ltd filed Critical British Telecommunications PLC
Priority to GB1520358A priority patent/GB869373A/en
Priority to DEB53143A priority patent/DE1129561B/de
Priority to GB986261A priority patent/GB943807A/en
Priority to GB986361A priority patent/GB943808A/en
Priority to GB986461A priority patent/GB949690A/en
Publication of GB869373A publication Critical patent/GB869373A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • H04M15/06—Recording class or number of calling, i.e. A-party or called party, i.e. B-party

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
GB1520358A 1958-05-12 1958-05-12 Improvements in or relating to electrical signalling systems Expired GB869373A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL121620D NL121620C (enExample) 1958-05-12
NL239106D NL239106A (enExample) 1958-05-12
GB1520358A GB869373A (en) 1958-05-12 1958-05-12 Improvements in or relating to electrical signalling systems
DEB53143A DE1129561B (de) 1958-05-12 1959-05-06 Schaltungsanordnung fuer Fernmeldeanlagen zur Ausfuehrung eines bestimmten aus einerAnzahl von Vorgaengen
GB986261A GB943807A (en) 1958-05-12 1961-03-17 Improvements in or relating to electrical signalling systems
GB986361A GB943808A (en) 1958-05-12 1961-03-17 Improvements in or relating to elicerical signalling systems
GB986461A GB949690A (en) 1958-05-12 1961-03-17 Improvements in or relating to electrical signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1520358A GB869373A (en) 1958-05-12 1958-05-12 Improvements in or relating to electrical signalling systems

Publications (1)

Publication Number Publication Date
GB869373A true GB869373A (en) 1961-05-31

Family

ID=10054853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1520358A Expired GB869373A (en) 1958-05-12 1958-05-12 Improvements in or relating to electrical signalling systems

Country Status (3)

Country Link
DE (1) DE1129561B (enExample)
GB (1) GB869373A (enExample)
NL (2) NL121620C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216382B (de) * 1962-12-07 1966-05-12 Jean Claude Lavenir Verfahren zur Gebuehrenerfassung von Fernsprechteilnehmern

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017216B (de) 1955-11-26 1957-10-10 Siemens Ag Schaltungsanordnung fuer abgeriegelte Fern- oder Verbindungsleitungen in Fernmelde-, insbesondere Fernsprechanlagen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1216382B (de) * 1962-12-07 1966-05-12 Jean Claude Lavenir Verfahren zur Gebuehrenerfassung von Fernsprechteilnehmern

Also Published As

Publication number Publication date
NL121620C (enExample)
NL239106A (enExample)
DE1129561B (de) 1962-05-17

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