JPS61131073A - 対数演算回路 - Google Patents

対数演算回路

Info

Publication number
JPS61131073A
JPS61131073A JP25063984A JP25063984A JPS61131073A JP S61131073 A JPS61131073 A JP S61131073A JP 25063984 A JP25063984 A JP 25063984A JP 25063984 A JP25063984 A JP 25063984A JP S61131073 A JPS61131073 A JP S61131073A
Authority
JP
Japan
Prior art keywords
current
logarithmization
diode
operational amplifier
circuit
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
JP25063984A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0359469B2 (enExample
Inventor
Kiyohito Yamamura
精仁 山村
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP25063984A priority Critical patent/JPS61131073A/ja
Publication of JPS61131073A publication Critical patent/JPS61131073A/ja
Publication of JPH0359469B2 publication Critical patent/JPH0359469B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
JP25063984A 1984-11-29 1984-11-29 対数演算回路 Granted JPS61131073A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25063984A JPS61131073A (ja) 1984-11-29 1984-11-29 対数演算回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25063984A JPS61131073A (ja) 1984-11-29 1984-11-29 対数演算回路

Publications (2)

Publication Number Publication Date
JPS61131073A true JPS61131073A (ja) 1986-06-18
JPH0359469B2 JPH0359469B2 (enExample) 1991-09-10

Family

ID=17210845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25063984A Granted JPS61131073A (ja) 1984-11-29 1984-11-29 対数演算回路

Country Status (1)

Country Link
JP (1) JPS61131073A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114511A1 (ja) * 2007-03-19 2008-09-25 Panasonic Corporation Ａｇｃ回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114511A1 (ja) * 2007-03-19 2008-09-25 Panasonic Corporation Ａｇｃ回路
US7795967B2 (en) 2007-03-19 2010-09-14 Panasonic Corporation AGC circuit

Also Published As

Publication number Publication date
JPH0359469B2 (enExample) 1991-09-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees