GB595556A - Improvements in or relating to electrical item comparing system - Google Patents

Improvements in or relating to electrical item comparing system

Info

Publication number
GB595556A
GB595556A GB12675/44A GB1267544A GB595556A GB 595556 A GB595556 A GB 595556A GB 12675/44 A GB12675/44 A GB 12675/44A GB 1267544 A GB1267544 A GB 1267544A GB 595556 A GB595556 A GB 595556A
Authority
GB
United Kingdom
Prior art keywords
tube
pulses
film
point
positive
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
GB12675/44A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB595556A publication Critical patent/GB595556A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G06F7/02—Comparing digital values
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • X-Ray Techniques (AREA)
  • Control Of Direct Current Motors (AREA)
GB12675/44A 1943-04-17 1944-07-03 Improvements in or relating to electrical item comparing system Expired GB595556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US483506A US2484081A (en) 1943-04-17 1943-04-17 Electrical item comparing system

Publications (1)

Publication Number Publication Date
GB595556A true GB595556A (en) 1947-12-09

Family

ID=23920326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12675/44A Expired GB595556A (en) 1943-04-17 1944-07-03 Improvements in or relating to electrical item comparing system

Country Status (4)

Country Link
US (1) US2484081A (ko)
FR (1) FR941700A (ko)
GB (1) GB595556A (ko)
NL (1) NL73141C (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700755A (en) * 1951-11-09 1955-01-25 Monroe Calculating Machine Keyboard checking circuit

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL83370C (ko) * 1945-09-27
US2873912A (en) * 1946-10-23 1959-02-17 Bush Vannevar Electronic comparator
US2609143A (en) * 1948-06-24 1952-09-02 George R Stibitz Electronic computer for addition and subtraction
US2738874A (en) * 1949-01-31 1956-03-20 Ibm Record controlled machine
NL91958C (ko) * 1949-06-22
BE498160A (ko) * 1949-09-17
US2641696A (en) * 1950-01-18 1953-06-09 Gen Electric Binary numbers comparator
FR1047731A (fr) * 1950-05-17 1953-12-16 Powers Samas Account Mach Ltd Perfectionnements apportés aux procédés pour préparer des documents pour statistiques et aux dispositifs pour explorer ou interpréter les indications portées par ces documents
BE513028A (ko) * 1951-09-24 1900-01-01
US2845530A (en) * 1953-09-28 1958-07-29 Elmer J Wade Pulse sorter
NL206029A (ko) * 1954-12-08

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933349A (en) * 1927-04-22 1933-10-31 Ibm Automatic control system for tabulators
US1763033A (en) * 1928-01-21 1930-06-10 Tabulating Machine Co Automatic control system
US1787719A (en) * 1928-01-24 1931-01-06 Tabulating Machine Co Automatic control system
US1844950A (en) * 1929-05-21 1932-02-16 Rca Corp Automatic transmitter
US2199547A (en) * 1932-07-02 1940-05-07 Ibm Record perforating device
FR46234E (ko) * 1933-05-23 1936-04-02
US2106342A (en) * 1936-06-20 1938-01-25 Bell Telephone Labor Inc Electric discharge tube circuits
GB491728A (en) * 1937-03-10 1938-09-08 Eric Lawrence Casling White Improvements in or relating to circuit arrangements for separating electric signal pulses
FR838421A (fr) * 1937-05-27 1939-03-06 Ibm Moyens et méthode de calcul
GB528973A (en) * 1938-05-11 1940-11-12 British Tabulating Mach Co Ltd Improvements in or relating to group-control mechanism for record-controlled statistical machines
US2302009A (en) * 1939-03-25 1942-11-17 Ibm Transmission system for statistical data
US2325941A (en) * 1939-07-25 1943-08-03 Ibm Statistical machine
US2320338A (en) * 1941-11-18 1943-06-01 Ibm Verifying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700755A (en) * 1951-11-09 1955-01-25 Monroe Calculating Machine Keyboard checking circuit

Also Published As

Publication number Publication date
NL73141C (ko)
FR941700A (fr) 1949-01-18
US2484081A (en) 1949-10-11

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