GB513248A - Improvements in or relating to electric calculating equipment - Google Patents

Improvements in or relating to electric calculating equipment

Info

Publication number
GB513248A
GB513248A GB1240739A GB1240739A GB513248A GB 513248 A GB513248 A GB 513248A GB 1240739 A GB1240739 A GB 1240739A GB 1240739 A GB1240739 A GB 1240739A GB 513248 A GB513248 A GB 513248A
Authority
GB
United Kingdom
Prior art keywords
relating
calculating equipment
calculating apparatus
registered
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
GB1240739A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB513248A publication Critical patent/GB513248A/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; CALCULATING OR 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; CALCULATING OR 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)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Meter Arrangements (AREA)
  • Insulated Conductors (AREA)
GB1240739A 1938-04-01 1938-04-01 Improvements in or relating to electric calculating equipment Expired GB513248A (en)

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
GB513248A true GB513248A (en) 1939-10-06

Family

ID=9961326

Family Applications (2)

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
GB1009238A Expired GB513228A (en) 1938-04-01 1938-04-01 Improvements in or relating to telecommunication exchange systems

Family Applications After (1)

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

Country Status (3)

Country Link
FR (1) FR852439A (xx)
GB (2) GB513248A (xx)
NL (1) NL64017C (xx)

Also Published As

Publication number Publication date
GB513228A (en) 1939-10-06
FR852439A (xx)
NL64017C (xx)

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