JPS54137365A - Memory device of analog quantity - Google Patents

Memory device of analog quantity

Info

Publication number
JPS54137365A
JPS54137365A JP4477178A JP4477178A JPS54137365A JP S54137365 A JPS54137365 A JP S54137365A JP 4477178 A JP4477178 A JP 4477178A JP 4477178 A JP4477178 A JP 4477178A JP S54137365 A JPS54137365 A JP S54137365A
Authority
JP
Japan
Prior art keywords
memory
counter
stepwise
digital
stored
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
JP4477178A
Other languages
Japanese (ja)
Other versions
JPS6323487B2 (en
Inventor
Takehiko Ono
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
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4477178A priority Critical patent/JPS54137365A/en
Publication of JPS54137365A publication Critical patent/JPS54137365A/en
Publication of JPS6323487B2 publication Critical patent/JPS6323487B2/ja
Granted legal-status Critical Current

Links

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  • Recording Measured Values (AREA)

Abstract

PURPOSE: To make the storate and reproduction possible always with a preset resolution and to spare the storage capacity while improving the accuracy by accomplishing the stepwise addressing operation of the memory for a preset variation in the analog quantity in a frequency analyzer.
CONSTITUTION: An input analog quantity is fed through a comparator 18, a gate 9, a U/D counter 10, a gate 12 and a D/A converter 15 so that digital signals are generated from the counter 10 by the loop of the foregoing elements. The output thus obtained is temporarily stored in an FF 17, and the stored quantity and the varying digital output are compared at 19 for each unit quantity. When a difference is established, a lead write memory 29 is supplied with write instructions, whereas a counter 30 is supplied with the clocks for the stepwise addressing operation. As a result, the memory 29 is stored with both the digital quantity at any timing and the digital quantity indicative of the time period to the subsequent change so that the stepwise advance of the memory 29 is not effected for a preset period.
COPYRIGHT: (C)1979,JPO&Japio
JP4477178A 1978-04-18 1978-04-18 Memory device of analog quantity Granted JPS54137365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4477178A JPS54137365A (en) 1978-04-18 1978-04-18 Memory device of analog quantity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4477178A JPS54137365A (en) 1978-04-18 1978-04-18 Memory device of analog quantity

Publications (2)

Publication Number Publication Date
JPS54137365A true JPS54137365A (en) 1979-10-25
JPS6323487B2 JPS6323487B2 (en) 1988-05-17

Family

ID=12700672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4477178A Granted JPS54137365A (en) 1978-04-18 1978-04-18 Memory device of analog quantity

Country Status (1)

Country Link
JP (1) JPS54137365A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133334A (en) * 1981-02-12 1982-08-18 Toshiba Corp Monitoring device for twist of shaft
JPS5967418A (en) * 1982-10-12 1984-04-17 Hioki Denki Kk Waveform recording device
JPS5967417A (en) * 1982-10-12 1984-04-17 Hioki Denki Kk Waveform recording device
JPS6168514A (en) * 1984-09-13 1986-04-08 Yoshida Seiki Kk Environmental condition measuring apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133334A (en) * 1981-02-12 1982-08-18 Toshiba Corp Monitoring device for twist of shaft
JPS5967418A (en) * 1982-10-12 1984-04-17 Hioki Denki Kk Waveform recording device
JPS5967417A (en) * 1982-10-12 1984-04-17 Hioki Denki Kk Waveform recording device
JPS6168514A (en) * 1984-09-13 1986-04-08 Yoshida Seiki Kk Environmental condition measuring apparatus

Also Published As

Publication number Publication date
JPS6323487B2 (en) 1988-05-17

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