DE2621849C2 - Funktionsgenerator zur Bildung einer logarithmischen Funktion - Google Patents

Funktionsgenerator zur Bildung einer logarithmischen Funktion

Info

Publication number
DE2621849C2
DE2621849C2 DE2621849A DE2621849A DE2621849C2 DE 2621849 C2 DE2621849 C2 DE 2621849C2 DE 2621849 A DE2621849 A DE 2621849A DE 2621849 A DE2621849 A DE 2621849A DE 2621849 C2 DE2621849 C2 DE 2621849C2
Authority
DE
Germany
Prior art keywords
circuit arrangement
logarithmic
voltage
function
binary counter
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.)
Expired
Application number
DE2621849A
Other languages
German (de)
English (en)
Other versions
DE2621849A1 (de
Inventor
Ritsu Katsuoka
Hisasi Toyohashi Kawai
Seiji Okazaki 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
Publication of DE2621849A1 publication Critical patent/DE2621849A1/de
Application granted granted Critical
Publication of DE2621849C2 publication Critical patent/DE2621849C2/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
DE2621849A 1975-06-16 1976-05-17 Funktionsgenerator zur Bildung einer logarithmischen Funktion Expired DE2621849C2 (de)

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
DE2621849A1 DE2621849A1 (de) 1976-12-23
DE2621849C2 true DE2621849C2 (de) 1982-08-26

Family

ID=13502443

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2621849A Expired DE2621849C2 (de) 1975-06-16 1976-05-17 Funktionsgenerator zur Bildung einer logarithmischen Funktion

Country Status (3)

Country Link
US (1) US4046999A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS51148341A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2621849C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (6)

* 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
US5197024A (en) * 1989-06-14 1993-03-23 Pickett Lester C Method and apparatus for exponential/logarithmic computation
US5359551A (en) * 1989-06-14 1994-10-25 Log Point Technologies, Inc. High speed logarithmic function generating apparatus
WO1994018632A1 (en) * 1993-02-01 1994-08-18 Lester Caryl Pickett 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
CN114441935A (zh) * 2021-12-27 2022-05-06 万帮数字能源股份有限公司 基于rc充放电回路的充放电特性曲线拟合计算方法和装置

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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
US4046999A (en) 1977-09-06
JPS5722144B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-05-11
JPS51148341A (en) 1976-12-20
DE2621849A1 (de) 1976-12-23

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Legal Events

Date Code Title Description
D2 Grant after examination
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee