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AU2001234302A1 - Logarithmic amplifier - Google Patents

Logarithmic amplifier

Info

Publication number
AU2001234302A1
AU2001234302A1 AU2001234302A AU3430201A AU2001234302A1 AU 2001234302 A1 AU2001234302 A1 AU 2001234302A1 AU 2001234302 A AU2001234302 A AU 2001234302A AU 3430201 A AU3430201 A AU 3430201A AU 2001234302 A1 AU2001234302 A1 AU 2001234302A1
Authority
AU
Australia
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.)
Abandoned
Application number
AU2001234302A
Inventor
Gunnar Forsberg
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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
Priority claimed from EP00850034A external-priority patent/EP1128313A1/en
Priority claimed from EP00850035A external-priority patent/EP1128170A1/en
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001234302A1 publication Critical patent/AU2001234302A1/en
Abandoned 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Amplifiers (AREA)
AU2001234302A 2000-02-25 2001-02-16 Logarithmic amplifier Abandoned AU2001234302A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP00850034A EP1128313A1 (en) 2000-02-25 2000-02-25 Logarithmic amplifier
EP00850035A EP1128170A1 (en) 2000-02-25 2000-02-25 Photodiode bias circuit
EP00850034 2000-02-25
EP00850035 2000-02-25
PCT/SE2001/000347 WO2001063746A1 (en) 2000-02-25 2001-02-16 Logarithmic amplifier

Publications (1)

Publication Number Publication Date
AU2001234302A1 true AU2001234302A1 (en) 2001-09-03

Family

ID=26074188

Family Applications (2)

Application Number Title Priority Date Filing Date
AU2001232600A Abandoned AU2001232600A1 (en) 2000-02-25 2001-02-14 Photodiode bias circuit
AU2001234302A Abandoned AU2001234302A1 (en) 2000-02-25 2001-02-16 Logarithmic amplifier

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU2001232600A Abandoned AU2001232600A1 (en) 2000-02-25 2001-02-14 Photodiode bias circuit

Country Status (2)

Country Link
AU (2) AU2001232600A1 (en)
WO (2) WO2001063747A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220925B1 (en) * 1973-02-27 1976-04-30 Thomson Csf
JPS5161243A (en) * 1974-11-25 1976-05-27 Fuji Photo Optical Co Ltd Taisuzofukuki
US4216379A (en) * 1978-10-26 1980-08-05 Sprague Electric Company Low voltage bias circuit for a photo-diode
JPH0748624B2 (en) * 1988-06-20 1995-05-24 三菱電機株式会社 Logarithmic amplifier

Also Published As

Publication number Publication date
AU2001232600A1 (en) 2001-09-03
WO2001063746A1 (en) 2001-08-30
WO2001063747A1 (en) 2001-08-30

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