GB2037523B - Frequency sensing circuit - Google Patents

Frequency sensing circuit

Info

Publication number
GB2037523B
GB2037523B GB7940430A GB7940430A GB2037523B GB 2037523 B GB2037523 B GB 2037523B GB 7940430 A GB7940430 A GB 7940430A GB 7940430 A GB7940430 A GB 7940430A GB 2037523 B GB2037523 B GB 2037523B
Authority
GB
United Kingdom
Prior art keywords
sensing circuit
frequency sensing
frequency
circuit
sensing
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.)
Expired
Application number
GB7940430A
Other versions
GB2037523A (en
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB2037523A publication Critical patent/GB2037523A/en
Application granted granted Critical
Publication of GB2037523B publication Critical patent/GB2037523B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/175—Spectrum analysis; Fourier analysis by delay means, e.g. tapped delay lines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
GB7940430A 1978-12-04 1979-11-22 Frequency sensing circuit Expired GB2037523B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96589778A 1978-12-04 1978-12-04

Publications (2)

Publication Number Publication Date
GB2037523A GB2037523A (en) 1980-07-09
GB2037523B true GB2037523B (en) 1983-05-05

Family

ID=25510640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7940430A Expired GB2037523B (en) 1978-12-04 1979-11-22 Frequency sensing circuit

Country Status (6)

Country Link
JP (1) JPS5598366A (en)
DE (1) DE2948467A1 (en)
FR (1) FR2443767A1 (en)
GB (1) GB2037523B (en)
HK (1) HK38388A (en)
MY (1) MY8600575A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030853A1 (en) * 1980-08-14 1982-03-11 Siemens AG, 1000 Berlin und 8000 München METHOD AND CIRCUIT ARRANGEMENT FOR DEMODULATING TIME-DISCRETE FREQUENCY-MODULATED SIGNALS
JPS60112A (en) * 1983-06-16 1985-01-05 Nippon Koden Corp Digital filter for elimination of commercial power supply component
CN106841776B (en) * 2017-03-28 2019-08-06 北京润科通用技术有限公司 A kind of method of frequency measurement machine and measuring signal frequency

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412338A (en) * 1965-10-15 1968-11-19 Ibm Frequency filter
CH530643A (en) * 1971-04-22 1972-11-15 Hasler Ag Method and device for recognizing a predetermined frequency in a frequency mixture
DE2349227A1 (en) * 1973-10-01 1975-04-03 Arild Dipl Ing Lacroix Purely recursive and non-recursive digital filter - has structure which can be switched over from purely recursive to non-recursive

Also Published As

Publication number Publication date
JPS6318707B2 (en) 1988-04-19
MY8600575A (en) 1986-12-31
GB2037523A (en) 1980-07-09
JPS5598366A (en) 1980-07-26
HK38388A (en) 1988-06-03
FR2443767A1 (en) 1980-07-04
DE2948467A1 (en) 1980-06-12

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951122