DE69130124D1 - Logarithmischer Verstärker - Google Patents

Logarithmischer Verstärker

Info

Publication number
DE69130124D1
DE69130124D1 DE69130124T DE69130124T DE69130124D1 DE 69130124 D1 DE69130124 D1 DE 69130124D1 DE 69130124 T DE69130124 T DE 69130124T DE 69130124 T DE69130124 T DE 69130124T DE 69130124 D1 DE69130124 D1 DE 69130124D1
Authority
DE
Germany
Prior art keywords
logarithmic amplifier
logarithmic
amplifier
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 - Fee Related
Application number
DE69130124T
Other languages
English (en)
Other versions
DE69130124T2 (de
Inventor
Shuji Watanabe
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.)
Toshiba Corp
Original Assignee
Toshiba 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
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of DE69130124D1 publication Critical patent/DE69130124D1/de
Application granted granted Critical
Publication of DE69130124T2 publication Critical patent/DE69130124T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
DE69130124T 1990-01-19 1991-01-18 Logarithmischer Verstärker Expired - Fee Related DE69130124T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009563A JPH0671186B2 (ja) 1990-01-19 1990-01-19 対数増幅回路

Publications (2)

Publication Number Publication Date
DE69130124D1 true DE69130124D1 (de) 1998-10-15
DE69130124T2 DE69130124T2 (de) 1999-02-18

Family

ID=11723764

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69130124T Expired - Fee Related DE69130124T2 (de) 1990-01-19 1991-01-18 Logarithmischer Verstärker

Country Status (5)

Country Link
US (1) US5081378A (de)
EP (1) EP0439071B1 (de)
JP (1) JPH0671186B2 (de)
KR (1) KR940011052B1 (de)
DE (1) DE69130124T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200655A (en) * 1991-06-03 1993-04-06 Motorola, Inc. Temperature-independent exponential converter
US5327029A (en) * 1993-05-06 1994-07-05 Martin Marietta Energy Systems, Inc. Logarithmic current measurement circuit with improved accuracy and temperature stability and associated method
US5781068A (en) * 1996-03-14 1998-07-14 Nikon Corporation Transadmittance amplifier for a motor
US6765682B1 (en) * 2002-01-11 2004-07-20 Nortel Networks Limited Method and apparatus for wavelength and power measurement for tunable laser control
US7126509B2 (en) * 2003-07-17 2006-10-24 Massachusetts Institute Of Technology Micropower logarithmic analog to digital conversion system and method with offset and temperature compensation
US8706243B2 (en) 2009-02-09 2014-04-22 Rainbow Medical Ltd. Retinal prosthesis techniques
US8150526B2 (en) 2009-02-09 2012-04-03 Nano-Retina, Inc. Retinal prosthesis
US8442641B2 (en) 2010-08-06 2013-05-14 Nano-Retina, Inc. Retinal prosthesis techniques
US8718784B2 (en) * 2010-01-14 2014-05-06 Nano-Retina, Inc. Penetrating electrodes for retinal stimulation
US8428740B2 (en) 2010-08-06 2013-04-23 Nano-Retina, Inc. Retinal prosthesis techniques
US8571669B2 (en) 2011-02-24 2013-10-29 Nano-Retina, Inc. Retinal prosthesis with efficient processing circuits
US9370417B2 (en) 2013-03-14 2016-06-21 Nano-Retina, Inc. Foveated retinal prosthesis
US9474902B2 (en) 2013-12-31 2016-10-25 Nano Retina Ltd. Wearable apparatus for delivery of power to a retinal prosthesis
US9331791B2 (en) 2014-01-21 2016-05-03 Nano Retina Ltd. Transfer of power and data
CN109992898B (zh) * 2019-04-04 2022-08-05 思瑞浦微电子科技（苏州）股份有限公司 一种具有温度补偿功能的对数流转压电路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220925B1 (de) * 1973-02-27 1976-04-30 Thomson Csf
US4091329A (en) * 1977-02-16 1978-05-23 Nasa Logarithmic circuit with wide dynamic range
US4786970A (en) * 1987-08-26 1988-11-22 Eastman Kodak Company Logarithmic amplifier

Also Published As

Publication number Publication date
KR910015108A (ko) 1991-08-31
US5081378A (en) 1992-01-14
EP0439071A3 (en) 1991-12-18
JPH03214804A (ja) 1991-09-20
KR940011052B1 (ko) 1994-11-22
JPH0671186B2 (ja) 1994-09-07
DE69130124T2 (de) 1999-02-18
EP0439071A2 (de) 1991-07-31
EP0439071B1 (de) 1998-09-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee