GB840764A - Improvements in or relating to data checking apparatus - Google Patents

Improvements in or relating to data checking apparatus

Info

Publication number
GB840764A
GB840764A GB26166/55A GB2616655A GB840764A GB 840764 A GB840764 A GB 840764A GB 26166/55 A GB26166/55 A GB 26166/55A GB 2616655 A GB2616655 A GB 2616655A GB 840764 A GB840764 A GB 840764A
Authority
GB
United Kingdom
Prior art keywords
residue
digit
relays
entered
check
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
GB26166/55A
Other languages
English (en)
Inventor
Albert John Keen
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 Computers and Tabulators Ltd
Original Assignee
International Computers and Tabulators 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 NL210583D priority Critical patent/NL210583A/xx
Application filed by International Computers and Tabulators Ltd filed Critical International Computers and Tabulators Ltd
Priority to GB26166/55A priority patent/GB840764A/en
Priority to US609218A priority patent/US2965296A/en
Priority to DEB41731A priority patent/DE1122298B/de
Priority to CH354273D priority patent/CH354273A/fr
Publication of GB840764A publication Critical patent/GB840764A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G06F11/1012—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using codes or arrangements adapted for a specific type of error
    • G06F11/104—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices using codes or arrangements adapted for a specific type of error using arithmetic codes, i.e. codes which are preserved during operation, e.g. modulo 9 or 11 check

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
GB26166/55A 1955-09-13 1955-09-13 Improvements in or relating to data checking apparatus Expired GB840764A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL210583D NL210583A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1955-09-13
GB26166/55A GB840764A (en) 1955-09-13 1955-09-13 Improvements in or relating to data checking apparatus
US609218A US2965296A (en) 1955-09-13 1956-09-11 Data checking apparatus
DEB41731A DE1122298B (de) 1955-09-13 1956-09-12 Verfahren und Vorrichtung zum Bilden eines Pruefwertes
CH354273D CH354273A (fr) 1955-09-13 1956-09-13 Appareil pour former une valeur de contrôle pour une donnée numérique et/ou alphabétique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26166/55A GB840764A (en) 1955-09-13 1955-09-13 Improvements in or relating to data checking apparatus

Publications (1)

Publication Number Publication Date
GB840764A true GB840764A (en) 1960-07-13

Family

ID=10239378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26166/55A Expired GB840764A (en) 1955-09-13 1955-09-13 Improvements in or relating to data checking apparatus

Country Status (5)

Country Link
US (1) US2965296A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH354273A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1122298B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB840764A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL210583A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290511A (en) * 1960-08-19 1966-12-06 Sperry Rand Corp High speed asynchronous computer
DE1295245B (de) * 1964-08-14 1969-05-14 Philips Patentverwaltung Vorrichtung zur Pruefzeichenberechnung oder zur Addition von Quotienten im Zahlensystem der Restklassen
DE1282336B (de) * 1967-04-22 1968-11-07 Orgaflex Bueromaschinen Ges Mi Schaltungsanordnung zum Errechnen eines Pruefzeichens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740007A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
NL106430C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1950-02-17 Canon Kk
US2755022A (en) * 1950-03-31 1956-07-17 Bull Sa Machines Apparatus for safeguarding against errors in accounting documents
BE503472A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1950-06-17
NL162746B (nl) * 1950-07-20 Siemens Ag Radarontvanger in een radarapparaat met twee bedrijfswijzen.
US2731199A (en) * 1951-10-06 1956-01-17 Ibm Computing mechanisms for checking computations
US2896848A (en) * 1954-10-08 1959-07-28 Burroughs Corp Magnetic core shift register counter

Also Published As

Publication number Publication date
US2965296A (en) 1960-12-20
CH354273A (fr) 1961-05-15
NL210583A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE1122298B (de) 1962-01-18

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