JPS51148341A - Logarithm function generator - Google Patents

Logarithm function generator

Info

Publication number
JPS51148341A
JPS51148341A JP50072892A JP7289275A JPS51148341A JP S51148341 A JPS51148341 A JP S51148341A JP 50072892 A JP50072892 A JP 50072892A JP 7289275 A JP7289275 A JP 7289275A JP S51148341 A JPS51148341 A JP S51148341A
Authority
JP
Japan
Prior art keywords
function generator
logarithm function
circuit
logarithm
lapse
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.)
Granted
Application number
JP50072892A
Other languages
English (en)
Other versions
JPS5722144B2 (ja
Inventor
Ritsu Katsuoka
Hisashi Kawai
Seiji Morino
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.)
Soken Inc
Original Assignee
Nippon Soken 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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP50072892A priority Critical patent/JPS51148341A/ja
Priority to US05/681,744 priority patent/US4046999A/en
Priority to DE2621849A priority patent/DE2621849C2/de
Publication of JPS51148341A publication Critical patent/JPS51148341A/ja
Publication of JPS5722144B2 publication Critical patent/JPS5722144B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Analogue/Digital Conversion (AREA)
  • Networks Using Active Elements (AREA)
JP50072892A 1975-06-16 1975-06-16 Logarithm function generator Granted JPS51148341A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50072892A JPS51148341A (en) 1975-06-16 1975-06-16 Logarithm function generator
US05/681,744 US4046999A (en) 1975-06-16 1976-04-29 Logarithmic function generating system
DE2621849A DE2621849C2 (de) 1975-06-16 1976-05-17 Funktionsgenerator zur Bildung einer logarithmischen Funktion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50072892A JPS51148341A (en) 1975-06-16 1975-06-16 Logarithm function generator

Publications (2)

Publication Number Publication Date
JPS51148341A true JPS51148341A (en) 1976-12-20
JPS5722144B2 JPS5722144B2 (ja) 1982-05-11

Family

ID=13502443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50072892A Granted JPS51148341A (en) 1975-06-16 1975-06-16 Logarithm function generator

Country Status (3)

Country Link
US (1) US4046999A (ja)
JP (1) JPS51148341A (ja)
DE (1) DE2621849C2 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362995A (en) * 1980-01-08 1982-12-07 Northern Telecom, Inc. Method of and apparatus for producing a logarithmic representation of an input voltage
US5359551A (en) * 1989-06-14 1994-10-25 Log Point Technologies, Inc. High speed logarithmic function generating apparatus
US5197024A (en) * 1989-06-14 1993-03-23 Pickett Lester C Method and apparatus for exponential/logarithmic computation
AU3664293A (en) * 1993-02-01 1994-08-29 Pickett, Lester C. Low latency function generating apparatus and method
JP6487882B2 (ja) * 2016-08-12 2019-03-20 ミネベアミツミ株式会社 アドレス制御回路及びアドレス制御回路の制御方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579127A (en) * 1967-05-31 1971-05-18 Gulf Energy & Environ Systems Apparatus for monitoring pulses
US3649826A (en) * 1969-12-22 1972-03-14 Corning Glass Works Integrating antilog function generator
DE2139126B2 (de) * 1971-08-05 1972-10-12 Wandel U. Goltermann, 7410 Reutlingen Digital in logarithmischem mass anzeigender spannungsmesser
JPS526586B2 (ja) * 1972-02-02 1977-02-23
US3805046A (en) * 1972-12-11 1974-04-16 Spectra Physics Logarithmic conversion system
DE2446629A1 (de) * 1974-09-19 1976-04-15 Siemens Ag Funktionsgenerator

Also Published As

Publication number Publication date
DE2621849A1 (de) 1976-12-23
JPS5722144B2 (ja) 1982-05-11
DE2621849C2 (de) 1982-08-26
US4046999A (en) 1977-09-06

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