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JPS5237480A - Frequency detection circuit - Google Patents

Frequency detection circuit

Info

Publication number
JPS5237480A
JPS5237480A JP11322775A JP11322775A JPS5237480A JP S5237480 A JPS5237480 A JP S5237480A JP 11322775 A JP11322775 A JP 11322775A JP 11322775 A JP11322775 A JP 11322775A JP S5237480 A JPS5237480 A JP S5237480A
Authority
JP
Japan
Prior art keywords
frequency detection
detection circuit
ordinal
suited
high accuracy
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
JP11322775A
Other languages
Japanese (ja)
Inventor
Takao Hayashi
Katsuhiko Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11322775A priority Critical patent/JPS5237480A/en
Publication of JPS5237480A publication Critical patent/JPS5237480A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

PURPOSE: A frequency detection circuit which can be composed by the use of a high accuracy oscillator and ordinal digital ICs, is able to make highly accurate frequency detection and is suited for smaller sizes.
COPYRIGHT: (C)1977,JPO&Japio
JP11322775A 1975-09-19 1975-09-19 Frequency detection circuit Pending JPS5237480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11322775A JPS5237480A (en) 1975-09-19 1975-09-19 Frequency detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11322775A JPS5237480A (en) 1975-09-19 1975-09-19 Frequency detection circuit

Publications (1)

Publication Number Publication Date
JPS5237480A true JPS5237480A (en) 1977-03-23

Family

ID=14606776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11322775A Pending JPS5237480A (en) 1975-09-19 1975-09-19 Frequency detection circuit

Country Status (1)

Country Link
JP (1) JPS5237480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246750A (en) * 1975-10-09 1977-04-13 Matsushita Graphic Commun Syst Inc Frequency detection circuit
JPS5931062U (en) * 1982-08-23 1984-02-27 株式会社明電舎 Frequency abnormality detection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246750A (en) * 1975-10-09 1977-04-13 Matsushita Graphic Commun Syst Inc Frequency detection circuit
JPS5931062U (en) * 1982-08-23 1984-02-27 株式会社明電舎 Frequency abnormality detection circuit

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