JPS5658333A - Counting circuit - Google Patents

Counting circuit

Info

Publication number
JPS5658333A
JPS5658333A JP13566379A JP13566379A JPS5658333A JP S5658333 A JPS5658333 A JP S5658333A JP 13566379 A JP13566379 A JP 13566379A JP 13566379 A JP13566379 A JP 13566379A JP S5658333 A JPS5658333 A JP S5658333A
Authority
JP
Japan
Prior art keywords
output
signal
taken
clock pulse
rotating body
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
JP13566379A
Other languages
Japanese (ja)
Other versions
JPS634369B2 (en
Inventor
Toshiaki Mizuta
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13566379A priority Critical patent/JPS5658333A/en
Publication of JPS5658333A publication Critical patent/JPS5658333A/en
Publication of JPS634369B2 publication Critical patent/JPS634369B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To avoid the count mistake before and after the inversion, by respectively providing two FFs which take the output signal of one sensor as an input signal, the inverting signal of an output signal as a clear signal and the output signal of another seonsor as a clock pulse, in a counting circuit counting the number of revolutions of a rotating body. CONSTITUTION:The revolution of a rotating body 1 is detected with the 1st and 2nd rotating sensors S1, S2, and the results are respectively wave-shaped at the 1st and 2nd wave shaping circuits 2, 3. Further, the output (a) of the 1st wave shaping circuit 2 is taken as an input signal to an FF4 and as a clock pulse to an FF5, and the inverting output (c) of the output (a) is taken as a clear signal to the FF4. Similarly, the output (b) of the 2nd wave shaping circuit 3 is taken as an input signal to an FF5 and as a clock pulse to the FF4, and also the inverting output (d) of the output (b) is taken as a clear signal to the FF5. Further, the output signal of both the FFs 4, 5 count the difference between forward and reverse number of revolutions of the rotating body 1.
JP13566379A 1979-10-19 1979-10-19 Counting circuit Granted JPS5658333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13566379A JPS5658333A (en) 1979-10-19 1979-10-19 Counting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13566379A JPS5658333A (en) 1979-10-19 1979-10-19 Counting circuit

Publications (2)

Publication Number Publication Date
JPS5658333A true JPS5658333A (en) 1981-05-21
JPS634369B2 JPS634369B2 (en) 1988-01-28

Family

ID=15157021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13566379A Granted JPS5658333A (en) 1979-10-19 1979-10-19 Counting circuit

Country Status (1)

Country Link
JP (1) JPS5658333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014228379A (en) * 2013-05-22 2014-12-08 パナソニック株式会社 Gas shut-off device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014228379A (en) * 2013-05-22 2014-12-08 パナソニック株式会社 Gas shut-off device

Also Published As

Publication number Publication date
JPS634369B2 (en) 1988-01-28

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