GB0129122D0 - Method and apparatus for calculating a reciprocal - Google Patents

Method and apparatus for calculating a reciprocal

Info

Publication number
GB0129122D0
GB0129122D0 GBGB0129122.8A GB0129122A GB0129122D0 GB 0129122 D0 GB0129122 D0 GB 0129122D0 GB 0129122 A GB0129122 A GB 0129122A GB 0129122 D0 GB0129122 D0 GB 0129122D0
Authority
GB
United Kingdom
Prior art keywords
reciprocal
calculating
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.)
Withdrawn
Application number
GBGB0129122.8A
Other versions
GB2372353A (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.)
Sicon Video Corp
Original Assignee
Sicon Video 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
Priority claimed from CA002329104A external-priority patent/CA2329104C/en
Application filed by Sicon Video Corp filed Critical Sicon Video Corp
Publication of GB0129122D0 publication Critical patent/GB0129122D0/en
Publication of GB2372353A publication Critical patent/GB2372353A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/035—Reduction of table size
    • G06F1/0356—Reduction of table size by using two or more smaller tables, e.g. addressed by parts of the argument
    • 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
    • G06F7/52—Multiplying; Dividing
    • G06F7/535—Dividing only
    • 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
    • G06F2207/535—Indexing scheme relating to groups G06F7/535 - G06F7/5375
    • G06F2207/5355—Using iterative approximation not using digit recurrence, e.g. Newton Raphson or Goldschmidt
    • 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
    • G06F2207/535—Indexing scheme relating to groups G06F7/535 - G06F7/5375
    • G06F2207/5356—Via reciprocal, i.e. calculate reciprocal only, or calculate reciprocal first and then the quotient from the reciprocal and the numerator
    • 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
    • G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
    • G06F7/487—Multiplying; Dividing
    • G06F7/4873—Dividing
GB0129122A 2000-12-20 2001-12-05 Method and apparatus for calculating a reciprocal Withdrawn GB2372353A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002329104A CA2329104C (en) 2000-12-20 2000-12-20 Method and apparatus for calculating a reciprocal
US09/781,951 US6769006B2 (en) 2000-12-20 2001-02-14 Method and apparatus for calculating a reciprocal

Publications (2)

Publication Number Publication Date
GB0129122D0 true GB0129122D0 (en) 2002-01-23
GB2372353A GB2372353A (en) 2002-08-21

Family

ID=25682301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0129122A Withdrawn GB2372353A (en) 2000-12-20 2001-12-05 Method and apparatus for calculating a reciprocal

Country Status (3)

Country Link
JP (1) JP2002244843A (en)
FR (1) FR2818407A1 (en)
GB (1) GB2372353A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006065633A (en) * 2004-08-27 2006-03-09 Sony Computer Entertainment Inc Arithmetic method and device
US8015228B2 (en) 2005-02-16 2011-09-06 Arm Limited Data processing apparatus and method for performing a reciprocal operation on an input value to produce a result value
US7747667B2 (en) 2005-02-16 2010-06-29 Arm Limited Data processing apparatus and method for determining an initial estimate of a result value of a reciprocal operation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0377992B1 (en) * 1989-01-13 1996-04-17 International Business Machines Corporation Floating point division method and apparatus

Also Published As

Publication number Publication date
JP2002244843A (en) 2002-08-30
FR2818407A1 (en) 2002-06-21
GB2372353A (en) 2002-08-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)