GB1054203A - - Google Patents

Info

Publication number
GB1054203A
GB1054203A GB1054203DA GB1054203A GB 1054203 A GB1054203 A GB 1054203A GB 1054203D A GB1054203D A GB 1054203DA GB 1054203 A GB1054203 A GB 1054203A
Authority
GB
United Kingdom
Prior art keywords
parity
decimal
bit
adder
corrector
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.)
Active
Application number
Other languages
English (en)
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.)
Publication of GB1054203A publication Critical patent/GB1054203A/en
Active 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
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/492—Indexing scheme relating to groups G06F7/492 - G06F7/496
    • G06F2207/4921—Single digit adding or subtracting

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Quality & Reliability (AREA)
  • Detection And Correction Of Errors (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Error Detection And Correction (AREA)
GB1054203D 1963-12-04 Active GB1054203A (US08197722-20120612-C00042.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US327915A US3300625A (en) 1963-12-04 1963-12-04 Apparatus for testing binary-coded decimal arithmetic digits by binary parity checking circuits

Publications (1)

Publication Number Publication Date
GB1054203A true GB1054203A (US08197722-20120612-C00042.png)

Family

ID=23278631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054203D Active GB1054203A (US08197722-20120612-C00042.png) 1963-12-04

Country Status (9)

Country Link
US (1) US3300625A (US08197722-20120612-C00042.png)
AT (1) AT249411B (US08197722-20120612-C00042.png)
BE (1) BE656664A (US08197722-20120612-C00042.png)
CH (1) CH421568A (US08197722-20120612-C00042.png)
DE (1) DE1270306B (US08197722-20120612-C00042.png)
ES (1) ES306696A1 (US08197722-20120612-C00042.png)
GB (1) GB1054203A (US08197722-20120612-C00042.png)
NL (1) NL155959B (US08197722-20120612-C00042.png)
SE (1) SE319033B (US08197722-20120612-C00042.png)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1524158B1 (de) * 1966-06-03 1970-08-06 Ibm Addier-Subtrahier-Schaltung für kodierte Dezimalzahlen insbesondere solche in Byte-Darstellung
FR2056229A5 (US08197722-20120612-C00042.png) * 1969-07-31 1971-05-14 Ibm
US3986015A (en) * 1975-06-23 1976-10-12 International Business Machines Corporation Arithmetic unit for use in a digital data processor and having an improved system for parity check bit generation and error detection
US4799222A (en) * 1987-01-07 1989-01-17 Honeywell Bull Inc. Address transform method and apparatus for transferring addresses

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL197751A (US08197722-20120612-C00042.png) * 1954-06-04
IT557030A (US08197722-20120612-C00042.png) * 1955-08-01
US2914248A (en) * 1956-03-07 1959-11-24 Ibm Program control for a data processing machine
GB802705A (en) * 1956-05-14 1958-10-08 British Tabulating Mach Co Ltd Improvements in or relating to digital calculating apparatus
US3046523A (en) * 1958-06-23 1962-07-24 Ibm Counter checking circuit
US3061193A (en) * 1958-10-21 1962-10-30 Bell Telephone Labor Inc Magnetic core arithmetic unit
US3063636A (en) * 1959-07-06 1962-11-13 Ibm Matrix arithmetic system with input and output error checking circuits
US3078039A (en) * 1960-06-27 1963-02-19 Ibm Error checking system for a parallel adder

Also Published As

Publication number Publication date
US3300625A (en) 1967-01-24
SE319033B (US08197722-20120612-C00042.png) 1969-12-22
NL155959B (nl) 1978-02-15
AT249411B (de) 1966-09-26
CH421568A (de) 1966-09-30
BE656664A (US08197722-20120612-C00042.png) 1965-04-01
ES306696A1 (es) 1965-04-16
DE1270306B (de) 1968-06-12
NL6414095A (US08197722-20120612-C00042.png) 1965-06-07

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