HK61092A - Method and apparatusfor deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display - Google Patents

Method and apparatusfor deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display

Info

Publication number
HK61092A
HK61092A HK610/92A HK61092A HK61092A HK 61092 A HK61092 A HK 61092A HK 610/92 A HK610/92 A HK 610/92A HK 61092 A HK61092 A HK 61092A HK 61092 A HK61092 A HK 61092A
Authority
HK
Hong Kong
Prior art keywords
apparatusfor
reciprocals
display
defining images
homogenous coordinate
Prior art date
Application number
HK610/92A
Other languages
English (en)
Inventor
Sheue-Ling Lien
Jerald R Evans
Susan E Carrie
Original Assignee
Sun Microsystems Inc
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 Sun Microsystems Inc filed Critical Sun Microsystems Inc
Publication of HK61092A publication Critical patent/HK61092A/xx

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
    • G06F7/52—Multiplying; Dividing
    • G06F7/535—Dividing only
    • 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
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/20—Drawing from basic elements, e.g. lines or circles
    • G06T11/203—Drawing of straight lines or curves
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/12—Reciprocal functions
    • 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
    • G06F2207/5354—Using table lookup, e.g. for digit selection in division by digit recurrence
    • 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

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)
  • Computing Systems (AREA)
  • Image Generation (AREA)
HK610/92A 1987-05-08 1992-08-13 Method and apparatusfor deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display HK61092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/047,767 US5179659A (en) 1987-05-08 1987-05-08 Method and apparatus for deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display

Publications (1)

Publication Number Publication Date
HK61092A true HK61092A (en) 1992-08-21

Family

ID=21950849

Family Applications (2)

Application Number Title Priority Date Filing Date
HK608/92A HK60892A (en) 1987-05-08 1992-08-13 Method and apparatus for deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display
HK610/92A HK61092A (en) 1987-05-08 1992-08-13 Method and apparatusfor deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK608/92A HK60892A (en) 1987-05-08 1992-08-13 Method and apparatus for deriving instantaneous reciprocals of the homogenous coordinate w for use in defining images on a display

Country Status (8)

Country Link
US (1) US5179659A (xx)
JP (1) JPH0664620B2 (xx)
CA (1) CA1317691C (xx)
DE (1) DE3815374C2 (xx)
FR (1) FR2615981B1 (xx)
GB (2) GB2204433B (xx)
HK (2) HK60892A (xx)
SG (1) SG52292G (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02156328A (ja) * 1988-12-08 1990-06-15 Toshiba Corp 逆数回路
US5471573A (en) * 1989-12-07 1995-11-28 Apple Computer, Inc. Optimized scan conversion of outlines for generating raster images
EP0530661A3 (en) * 1991-09-04 1994-06-15 Seikosha Kk Curve approximation method
US5739820A (en) * 1992-11-19 1998-04-14 Apple Computer Inc. Method and apparatus for specular reflection shading of computer graphic images
US5544291A (en) * 1993-11-10 1996-08-06 Adobe Systems, Inc. Resolution-independent method for displaying a three dimensional model in two-dimensional display space
US5798762A (en) * 1995-05-10 1998-08-25 Cagent Technologies, Inc. Controlling a real-time rendering engine using a list-based control mechanism
US6581085B1 (en) * 1999-05-12 2003-06-17 Ati International Srl Approximation circuit and method
US7117238B1 (en) * 2002-09-19 2006-10-03 Nvidia Corporation Method and system for performing pipelined reciprocal and reciprocal square root operations
US7457838B2 (en) * 2003-12-03 2008-11-25 Marvell World Trade Ltd. Methods and apparatus for performing calculations using reduced-width data
US7657589B2 (en) 2005-08-17 2010-02-02 Maxim Integrated Products System and method for generating a fixed point approximation to nonlinear functions
US7962537B2 (en) * 2006-06-26 2011-06-14 Southern Methodist University Determining a table output of a table representing a hierarchical tree for an integer valued function

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508038A (en) * 1966-08-30 1970-04-21 Ibm Multiplying apparatus for performing division using successive approximate reciprocals of a divisor
SU546881A1 (ru) * 1974-09-16 1977-02-15 Институт Электродинамики Ан Украинской Сср Устройство дл определени обратной величины числа
US4482975A (en) * 1982-03-29 1984-11-13 Motorola, Inc. Function generator
US4636973A (en) * 1982-07-21 1987-01-13 Raytheon Company Vernier addressing apparatus
US4688186A (en) * 1982-10-04 1987-08-18 Honeywell Bull Inc. Division by a constant by iterative table lookup
US4718032A (en) * 1985-02-14 1988-01-05 Prime Computer, Inc. Method and apparatus for effecting range transformation in a digital circuitry
JPS61262930A (ja) * 1985-05-17 1986-11-20 Nec Corp 除算装置
JPS6278629A (ja) * 1985-10-02 1987-04-10 Hitachi Denshi Ltd 逆数値演算方式

Also Published As

Publication number Publication date
HK60892A (en) 1992-08-21
JPS6453277A (en) 1989-03-01
US5179659A (en) 1993-01-12
GB8925215D0 (en) 1989-12-28
SG52292G (en) 1992-12-04
GB2204433A (en) 1988-11-09
GB2224914B (en) 1992-02-05
GB2204433B (en) 1992-02-05
DE3815374A1 (de) 1988-11-24
FR2615981B1 (fr) 1994-04-01
FR2615981A1 (fr) 1988-12-02
CA1317691C (en) 1993-05-11
JPH0664620B2 (ja) 1994-08-22
DE3815374C2 (de) 1997-07-17
GB2224914A (en) 1990-05-16
GB8810315D0 (en) 1988-06-02

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)