JPS5226876A - Frequency detector - Google Patents

Frequency detector

Info

Publication number
JPS5226876A
JPS5226876A JP10135176A JP10135176A JPS5226876A JP S5226876 A JPS5226876 A JP S5226876A JP 10135176 A JP10135176 A JP 10135176A JP 10135176 A JP10135176 A JP 10135176A JP S5226876 A JPS5226876 A JP S5226876A
Authority
JP
Japan
Prior art keywords
frequency detector
detector
frequency
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
JP10135176A
Other languages
Japanese (ja)
Inventor
Kureigu Mootensen Aran
Emu Kurifuoodo Dagurasu
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard 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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS5226876A publication Critical patent/JPS5226876A/en
Pending 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
    • 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)
JP10135176A 1975-08-25 1976-08-25 Frequency detector Pending JPS5226876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60772775A 1975-08-25 1975-08-25

Publications (1)

Publication Number Publication Date
JPS5226876A true JPS5226876A (en) 1977-02-28

Family

ID=24433467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10135176A Pending JPS5226876A (en) 1975-08-25 1976-08-25 Frequency detector

Country Status (4)

Country Link
JP (1) JPS5226876A (en)
CA (1) CA1058288A (en)
DE (1) DE2635892A1 (en)
GB (1) GB1547445A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5566701A (en) * 1978-06-26 1980-05-20 Mitsutoyo Mfg Co Ltd Count failure alarm circuit for digital electronic micrometer
JPS567480A (en) * 1979-06-29 1981-01-26 Mitsubishi Electric Corp Film transistor
JPS5788945U (en) * 1980-11-20 1982-06-01
JPS62226659A (en) * 1986-03-28 1987-10-05 Canon Inc Semiconductor device
JPS6411554U (en) * 1987-07-08 1989-01-20
JPH01239876A (en) * 1988-03-19 1989-09-25 Toshiba Corp Semiconductor device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849704A (en) * 1987-04-15 1989-07-18 Westinghouse Electric Corp. Duty cycle independent phase detector
US4801894A (en) * 1987-10-23 1989-01-31 Hewlett-Packard Company Frequency detector for frequency locked loop
CN109030937B (en) * 2018-08-13 2024-02-06 珠海格力电器股份有限公司 Power frequency detection circuit, air conditioner and grid-connected system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911374A (en) * 1972-06-01 1974-01-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911374A (en) * 1972-06-01 1974-01-31

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5566701A (en) * 1978-06-26 1980-05-20 Mitsutoyo Mfg Co Ltd Count failure alarm circuit for digital electronic micrometer
JPS5758601B2 (en) * 1978-06-26 1982-12-10 Mitsutoyo Seisakusho
JPS567480A (en) * 1979-06-29 1981-01-26 Mitsubishi Electric Corp Film transistor
JPH0212031B2 (en) * 1979-06-29 1990-03-16 Mitsubishi Electric Corp
JPS5788945U (en) * 1980-11-20 1982-06-01
JPS62226659A (en) * 1986-03-28 1987-10-05 Canon Inc Semiconductor device
JPS6411554U (en) * 1987-07-08 1989-01-20
JPH01239876A (en) * 1988-03-19 1989-09-25 Toshiba Corp Semiconductor device

Also Published As

Publication number Publication date
DE2635892A1 (en) 1977-03-10
GB1547445A (en) 1979-06-20
CA1058288A (en) 1979-07-10

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