GB513228A - Improvements in or relating to telecommunication exchange systems - Google Patents

Improvements in or relating to telecommunication exchange systems

Info

Publication number
GB513228A
GB513228A GB1009238A GB1009238A GB513228A GB 513228 A GB513228 A GB 513228A GB 1009238 A GB1009238 A GB 1009238A GB 1009238 A GB1009238 A GB 1009238A GB 513228 A GB513228 A GB 513228A
Authority
GB
United Kingdom
Prior art keywords
wires
relays
digit
hour
time
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
GB1009238A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 FR852439D priority Critical patent/FR852439A/fr
Priority to NL64017D priority patent/NL64017C/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1240739A priority patent/GB513248A/en
Priority to GB1009238A priority patent/GB513228A/en
Publication of GB513228A publication Critical patent/GB513228A/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
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/40—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using contact-making devices, e.g. electromagnetic relay
    • G06F7/42—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/46—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using electromechanical counter-type accumulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Insulated Conductors (AREA)
GB1009238A 1938-04-01 1938-04-01 Improvements in or relating to telecommunication exchange systems Expired GB513228A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR852439D FR852439A (enrdf_load_stackoverflow) 1938-04-01
NL64017D NL64017C (enrdf_load_stackoverflow) 1938-04-01
GB1240739A GB513248A (en) 1938-04-01 1938-04-01 Improvements in or relating to electric calculating equipment
GB1009238A GB513228A (en) 1938-04-01 1938-04-01 Improvements in or relating to telecommunication exchange systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1009238A GB513228A (en) 1938-04-01 1938-04-01 Improvements in or relating to telecommunication exchange systems

Publications (1)

Publication Number Publication Date
GB513228A true GB513228A (en) 1939-10-06

Family

ID=9961326

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1009238A Expired GB513228A (en) 1938-04-01 1938-04-01 Improvements in or relating to telecommunication exchange systems
GB1240739A Expired GB513248A (en) 1938-04-01 1938-04-01 Improvements in or relating to electric calculating equipment

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1240739A Expired GB513248A (en) 1938-04-01 1938-04-01 Improvements in or relating to electric calculating equipment

Country Status (3)

Country Link
FR (1) FR852439A (enrdf_load_stackoverflow)
GB (2) GB513228A (enrdf_load_stackoverflow)
NL (1) NL64017C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL64017C (enrdf_load_stackoverflow)
FR852439A (enrdf_load_stackoverflow)
GB513248A (en) 1939-10-06

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