JPS55417A - Frequency comparator circuit - Google Patents

Frequency comparator circuit

Info

Publication number
JPS55417A
JPS55417A JP6127978A JP6127978A JPS55417A JP S55417 A JPS55417 A JP S55417A JP 6127978 A JP6127978 A JP 6127978A JP 6127978 A JP6127978 A JP 6127978A JP S55417 A JPS55417 A JP S55417A
Authority
JP
Japan
Prior art keywords
period
level
signals
fin
result
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
JP6127978A
Other languages
English (en)
Other versions
JPS5838750B2 (ja
Inventor
Fumitaka Asami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53061279A priority Critical patent/JPS5838750B2/ja
Priority to US06/040,410 priority patent/US4289956A/en
Priority to EP79300877A priority patent/EP0005946B1/en
Priority to DE7979300877T priority patent/DE2967258D1/de
Publication of JPS55417A publication Critical patent/JPS55417A/ja
Publication of JPS5838750B2 publication Critical patent/JPS5838750B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing phase or frequency of 2 mutually independent oscillations in demodulators)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
JP53061279A 1978-05-23 1978-05-23 周期比較回路 Expired JPS5838750B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP53061279A JPS5838750B2 (ja) 1978-05-23 1978-05-23 周期比較回路
US06/040,410 US4289956A (en) 1978-05-23 1979-05-18 Time-period comparing device
EP79300877A EP0005946B1 (en) 1978-05-23 1979-05-18 Time-period comparing device
DE7979300877T DE2967258D1 (en) 1978-05-23 1979-05-18 Time-period comparing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53061279A JPS5838750B2 (ja) 1978-05-23 1978-05-23 周期比較回路

Publications (2)

Publication Number Publication Date
JPS55417A true JPS55417A (en) 1980-01-05
JPS5838750B2 JPS5838750B2 (ja) 1983-08-25

Family

ID=13166601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53061279A Expired JPS5838750B2 (ja) 1978-05-23 1978-05-23 周期比較回路

Country Status (4)

Country Link
US (1) US4289956A (ja)
EP (1) EP0005946B1 (ja)
JP (1) JPS5838750B2 (ja)
DE (1) DE2967258D1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843041U (ja) * 1981-09-17 1983-03-23 日本電気ホームエレクトロニクス株式会社 パルス周期判別回路
JPS60176179U (ja) * 1984-04-30 1985-11-21 日本電気ホームエレクトロニクス株式会社 パルス周期判別回路
US4879119A (en) * 1984-02-21 1989-11-07 Yamanouchi Pharmaceutical Co., Ltd. Patch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079971B1 (de) * 1981-11-19 1985-07-17 Deutsche ITT Industries GmbH Digitalschaltung zur Abgabe eines Binärsignals beim Auftreten des Frequenzverhältnisses von Zeilen- und Bildfrequenz
US4511977A (en) * 1982-03-18 1985-04-16 C.R.O. Inc. Punch marker height control

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753130A (en) * 1972-03-09 1973-08-14 Bell Telephone Labor Inc Digital frequency comparator
JPS4911374A (ja) * 1972-06-01 1974-01-31
JPS4929169A (ja) * 1972-07-06 1974-03-15

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361985A (en) 1966-09-30 1968-01-02 Nasa Usa Signal detection and tracking apparatus
US3521174A (en) * 1967-03-23 1970-07-21 Us Navy Frequency sensitive control circuit
US3619651A (en) * 1969-11-07 1971-11-09 Anderson Jacobson Inc Digital frequency discriminator
US3714645A (en) * 1970-10-26 1973-01-30 Nasa Rate data encoder
US3739367A (en) * 1971-08-19 1973-06-12 Dickey John Corp Slow rotational speed alarm
US3757233A (en) * 1972-02-04 1973-09-04 Sperry Rand Corp Digital filter
JPS5141953B2 (ja) * 1972-03-03 1976-11-12
JPS5226302B2 (ja) 1972-09-09 1977-07-13
US3906346A (en) * 1972-12-26 1975-09-16 Us Navy Precision time interval comparator
US3956705A (en) * 1974-03-15 1976-05-11 Sun Oil Company Of Pennsylvania Pulse rate comparison circuit
JPS515079A (ja) 1974-06-29 1976-01-16 Nippon Electric Co
US3981440A (en) * 1974-09-25 1976-09-21 International Telephone And Telegraph Corporation Digital signal detector
US4052676A (en) * 1976-06-10 1977-10-04 Woodward Governor Company Digital-analog frequency error signaling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753130A (en) * 1972-03-09 1973-08-14 Bell Telephone Labor Inc Digital frequency comparator
JPS4911374A (ja) * 1972-06-01 1974-01-31
JPS4929169A (ja) * 1972-07-06 1974-03-15

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843041U (ja) * 1981-09-17 1983-03-23 日本電気ホームエレクトロニクス株式会社 パルス周期判別回路
US4879119A (en) * 1984-02-21 1989-11-07 Yamanouchi Pharmaceutical Co., Ltd. Patch
JPS60176179U (ja) * 1984-04-30 1985-11-21 日本電気ホームエレクトロニクス株式会社 パルス周期判別回路

Also Published As

Publication number Publication date
US4289956A (en) 1981-09-15
JPS5838750B2 (ja) 1983-08-25
EP0005946B1 (en) 1984-10-17
EP0005946A1 (en) 1979-12-12
DE2967258D1 (en) 1984-11-22

Similar Documents

Publication Publication Date Title
JPS55417A (en) Frequency comparator circuit
JPS57182858A (en) Monitor circuit for program runaway in computer
JPS5227250A (en) Oscillating circuit
JPS51140513A (en) Color burst signal extracting circuit
JPS52104973A (en) Direct phase comparison circuit
JPS57112129A (en) Latch circuit
JPS55676A (en) Pulse delay circuit
JPS5559315A (en) Pulse generating device
JPS53134320A (en) Noise rejecting circuit
JPS5579526A (en) Digital type delay circuit
JPS551703A (en) Programmable pulse generator
JPS52106650A (en) Clock pulse generating circuit
JPS52111622A (en) Semiconductor control apparatus
JPS5552633A (en) Pulse multiplication unit
JPS55130535A (en) Exposure lamp control circuit of copying apparatus
JPS52133235A (en) Judging circuit
JPS5330857A (en) Signal change detector circuit
JPS5373179A (en) Comparison circuit of pulse phase
JPS5434668A (en) Delay circuit
JPS5386273A (en) Electronic timepiece
JPS54110772A (en) Pulse duration detector circuit
JPS5258348A (en) Sampling circuit
JPS5682457A (en) Frequency detector
JPS55120221A (en) Phase difference detection circuit of digital circuit
JPS5635065A (en) Measuring unit of threshold value