JPS5516210A - Digital-analog logarithm converter - Google Patents

Digital-analog logarithm converter

Info

Publication number
JPS5516210A
JPS5516210A JP8828278A JP8828278A JPS5516210A JP S5516210 A JPS5516210 A JP S5516210A JP 8828278 A JP8828278 A JP 8828278A JP 8828278 A JP8828278 A JP 8828278A JP S5516210 A JPS5516210 A JP S5516210A
Authority
JP
Japan
Prior art keywords
digit
signal
directive
digital
signals
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.)
Pending
Application number
JP8828278A
Other languages
Japanese (ja)
Inventor
Yoshitaka Takeuchi
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 JP8828278A priority Critical patent/JPS5516210A/en
Publication of JPS5516210A publication Critical patent/JPS5516210A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

Abstract

PURPOSE: To take a multidigit logarithm analog signal in the digit-selectable form by performing a logarithm conversion by the use of a digit signal and a digital signal of each digit.
CONSTITUTION: The counter 1 which counts the input pulse IP, takes digit signals T1 to T4 and digital signals S1 to S8 that show counting values of the respective digits repeatedly, digit directive dircuits 3 to 8 which feed signals T and S, and form a digit directive signal corresponding to the maximum digit signal T containing the signal S, circuits 16 to 27 which feed signals T and S, weight the maximum digit signal S detected in the digit directive circuit, and reduce the weighting extent for lower digits to 1/10 sequentially to form a weighted signal of significant digits, and circuits 32, 33 which convert the significant digit weighted signal logarithmically are provided. The digit directive signal and weighted signal are added to obtain an analog logarithm output.
COPYRIGHT: (C)1980,JPO&Japio
JP8828278A 1978-07-21 1978-07-21 Digital-analog logarithm converter Pending JPS5516210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8828278A JPS5516210A (en) 1978-07-21 1978-07-21 Digital-analog logarithm converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8828278A JPS5516210A (en) 1978-07-21 1978-07-21 Digital-analog logarithm converter

Publications (1)

Publication Number Publication Date
JPS5516210A true JPS5516210A (en) 1980-02-04

Family

ID=13938536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8828278A Pending JPS5516210A (en) 1978-07-21 1978-07-21 Digital-analog logarithm converter

Country Status (1)

Country Link
JP (1) JPS5516210A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112351A (en) * 1980-02-13 1981-09-04 Jidosha Kiki Co Ltd Braking hydraulic controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112351A (en) * 1980-02-13 1981-09-04 Jidosha Kiki Co Ltd Braking hydraulic controller
JPH0217381B2 (en) * 1980-02-13 1990-04-20 Jidosha Kiki Co

Similar Documents

Publication Publication Date Title
JPS5441061A (en) Analogue/digital converter
JPS5639629A (en) Digital-analog converter
JPS5516210A (en) Digital-analog logarithm converter
JPS5783926A (en) Digital to analog converter
JPS5440069A (en) Ad converter
JPS5291638A (en) D/a converter
JPS57140026A (en) Digital-to-analog converting circuit
JPS53137659A (en) A/d conversion system
JPS53148952A (en) Analog-digital converter
JPS5731044A (en) Multipurpose digital integral device
JPS5250753A (en) Electronic type weighting apparatus
JPS57137820A (en) Combination balance
JPS5520513A (en) Bcd/binary conversion circuit of real variable
JPS53116067A (en) Pcm coder
JPS5520512A (en) Binary/bcd conversion circuit of real variable
JPS5394858A (en) Analog-digital converter
JPS55120224A (en) D/a converter
JPS52149469A (en) I/o isolating type da converter
JPS5411756A (en) Photo a/d converter
JPS52144922A (en) Numeric input unit
JPS5481764A (en) Digital analog converter
JPS5595181A (en) Logarithmic converter
JPS57152726A (en) A/d converting circuit
JPS544058A (en) Analog to digital converter of integration type
JPS577629A (en) Converting circuit