GB2185606A - Linear approximation circuit for curve generation - Google Patents

Linear approximation circuit for curve generation Download PDF

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Publication number
GB2185606A
GB2185606A GB08700753A GB8700753A GB2185606A GB 2185606 A GB2185606 A GB 2185606A GB 08700753 A GB08700753 A GB 08700753A GB 8700753 A GB8700753 A GB 8700753A GB 2185606 A GB2185606 A GB 2185606A
Authority
GB
United Kingdom
Prior art keywords
circuit
input
exponent
coupled
input section
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Withdrawn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
GB08700753A
Other languages
English (en)
Other versions
GB8700753D0 (en
Inventor
Walter Robert Steiner
William Eugene Peregoy
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB8700753D0 publication Critical patent/GB8700753D0/en
Publication of GB2185606A publication Critical patent/GB2185606A/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Withdrawn legal-status Critical Current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
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/20—Contour coding, e.g. using detection of edges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/08—Powers or roots
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Complex Calculations (AREA)
  • Image Processing (AREA)
  • Numerical Control (AREA)
GB08700753A 1986-01-16 1987-01-14 Linear approximation circuit for curve generation Withdrawn GB2185606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81934686A 1986-01-16 1986-01-16

Publications (2)

Publication Number Publication Date
GB8700753D0 GB8700753D0 (en) 1987-02-18
GB2185606A true GB2185606A (en) 1987-07-22

Family

ID=25227888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08700753A Withdrawn GB2185606A (en) 1986-01-16 1987-01-14 Linear approximation circuit for curve generation

Country Status (4)

Country Link
JP (1) JPS62197868A (de)
DE (1) DE3700740A1 (de)
FR (1) FR2592973A1 (de)
GB (1) GB2185606A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462381A2 (de) * 1990-04-26 1991-12-27 Sanyo Electric Co., Ltd. Verfahren und Gerät zur Verarbeitung von Tonsignalen
EP0578950A2 (de) * 1992-07-15 1994-01-19 International Business Machines Corporation Verfahren und Vorrichtung zur Umsetzuung eines Gleitkomma-Pixelwertes in einen Byte-Pixelwert unter Benutzung einer Nachschlagetabelle
US5341317A (en) * 1990-10-17 1994-08-23 Seikosha Co., Ltd. Curvilinear approximation method
US5430834A (en) * 1990-10-17 1995-07-04 Seikosha Co., Ltd. Method and apparatus for storing and reproducing a curve
GB2525648A (en) * 2014-05-01 2015-11-04 Imagination Tech Ltd Approximating functions
US20190050369A1 (en) * 2016-04-19 2019-02-14 Cambricon Technologies Corporation Limited Apparatus and methods for non-linear function operations

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1233825A (de) * 1968-07-01 1971-06-03
US3922536A (en) * 1974-05-31 1975-11-25 Rca Corp Multionomial processor system
US3962573A (en) * 1975-06-12 1976-06-08 Rockwell International Corporation Digital function generator
EP0102784A2 (de) * 1982-08-13 1984-03-14 Hewlett-Packard Company Verfahren und Anordnung zum Erzeugen einer Sinusfunktion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282578A (en) * 1980-03-17 1981-08-04 Burr-Brown Research Corporation System for linearizing non-linear transducer signals
JPS57204931A (en) * 1981-06-12 1982-12-15 Nec Corp Nonlinear converter
DD225522A1 (de) * 1984-05-17 1985-07-31 Adw Ddr Arithmetische verarbeitungseinheit
JPS61216026A (ja) * 1985-03-20 1986-09-25 Nec Corp 近似関数値生成回路

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1233825A (de) * 1968-07-01 1971-06-03
US3922536A (en) * 1974-05-31 1975-11-25 Rca Corp Multionomial processor system
US3962573A (en) * 1975-06-12 1976-06-08 Rockwell International Corporation Digital function generator
EP0102784A2 (de) * 1982-08-13 1984-03-14 Hewlett-Packard Company Verfahren und Anordnung zum Erzeugen einer Sinusfunktion

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462381A2 (de) * 1990-04-26 1991-12-27 Sanyo Electric Co., Ltd. Verfahren und Gerät zur Verarbeitung von Tonsignalen
EP0462381B1 (de) * 1990-04-26 1997-06-25 Sanyo Electric Co., Ltd. Verfahren und Gerät zur Verarbeitung von Tonsignalen
US5341317A (en) * 1990-10-17 1994-08-23 Seikosha Co., Ltd. Curvilinear approximation method
US5430834A (en) * 1990-10-17 1995-07-04 Seikosha Co., Ltd. Method and apparatus for storing and reproducing a curve
EP0578950A2 (de) * 1992-07-15 1994-01-19 International Business Machines Corporation Verfahren und Vorrichtung zur Umsetzuung eines Gleitkomma-Pixelwertes in einen Byte-Pixelwert unter Benutzung einer Nachschlagetabelle
EP0578950A3 (en) * 1992-07-15 1995-11-22 Ibm Method and apparatus for converting floating-point pixel values to byte pixel values by table lookup
US5528741A (en) * 1992-07-15 1996-06-18 International Business Machines Corporation Method and apparatus for converting floating-point pixel values to byte pixel values by table lookup
GB2525648B (en) * 2014-05-01 2017-09-20 Imagination Tech Ltd Approximating functions
GB2525648A (en) * 2014-05-01 2015-11-04 Imagination Tech Ltd Approximating functions
US9785406B2 (en) 2014-05-01 2017-10-10 Imagination Technologies Limited Approximating functions
US10268450B2 (en) 2014-05-01 2019-04-23 Imagination Technologies Limited Approximating functions
US10402167B2 (en) 2014-05-01 2019-09-03 Imagination Technologies Limited Approximating functions
US10642578B2 (en) 2014-05-01 2020-05-05 Imagination Technologies Limited Approximating functions
US20190050369A1 (en) * 2016-04-19 2019-02-14 Cambricon Technologies Corporation Limited Apparatus and methods for non-linear function operations
EP3447634A4 (de) * 2016-04-19 2019-12-18 Cambricon Technologies Corporation Limited Datenverarbeitungsvorrichtung und verfahren für nichtlineare funktionen
US10860050B2 (en) * 2016-04-19 2020-12-08 Cambricon Technologies Corporation Limited Apparatus and methods for non-linear function operations

Also Published As

Publication number Publication date
DE3700740A1 (de) 1987-07-23
GB8700753D0 (en) 1987-02-18
FR2592973A1 (fr) 1987-07-17
JPS62197868A (ja) 1987-09-01

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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)