FI760037A7 - - Google Patents

Info

Publication number
FI760037A7
FI760037A7 FI760037A FI760037A FI760037A7 FI 760037 A7 FI760037 A7 FI 760037A7 FI 760037 A FI760037 A FI 760037A FI 760037 A FI760037 A FI 760037A FI 760037 A7 FI760037 A7 FI 760037A7
Authority
FI
Finland
Application number
FI760037A
Other languages
Finnish (fi)
Other versions
FI58405C (fi
FI58405B (fi
Inventor
Per Gunnar Bylund
Bertil Lyberg
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI760037A7 publication Critical patent/FI760037A7/fi
Application granted granted Critical
Publication of FI58405B publication Critical patent/FI58405B/sv
Publication of FI58405C publication Critical patent/FI58405C/sv

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
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/12—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into phase shift

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Phase Differences (AREA)
  • Manipulation Of Pulses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
FI760037A 1975-01-29 1976-01-08 Anordning foer maetning av smao frekvensdifferenser FI58405C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7500935A SE382120B (sv) 1975-01-29 1975-01-29 Anordning for metning av sma frekvensdifferenser
SE7500935 1975-01-29

Publications (3)

Publication Number Publication Date
FI760037A7 true FI760037A7 (enExample) 1976-07-30
FI58405B FI58405B (fi) 1980-09-30
FI58405C FI58405C (fi) 1981-01-12

Family

ID=20323528

Family Applications (1)

Application Number Title Priority Date Filing Date
FI760037A FI58405C (fi) 1975-01-29 1976-01-08 Anordning foer maetning av smao frekvensdifferenser

Country Status (7)

Country Link
US (1) US4001680A (enExample)
BR (1) BR7600507A (enExample)
DE (1) DE2602540A1 (enExample)
FI (1) FI58405C (enExample)
GB (1) GB1482398A (enExample)
IT (1) IT1055011B (enExample)
SE (1) SE382120B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106096A (en) * 1976-08-30 1978-08-08 Bell Telephone Laboratories, Incorporated Derivative measurement by frequency mixing
JPS6037711B2 (ja) * 1978-09-01 1985-08-28 株式会社東芝 位相検出器
US4585989A (en) * 1984-05-18 1986-04-29 Tektronix, Inc. 50% point of amplitude and phase detector
GB2193406B (en) * 1986-08-02 1990-04-25 Marconi Instruments Ltd Phase detector
US6435037B1 (en) 2000-01-06 2002-08-20 Data Sciences International, Inc. Multiplexed phase detector
US6539316B1 (en) 2000-01-06 2003-03-25 Data Sciences International, Inc. Phase detector
US6595071B1 (en) 2000-01-06 2003-07-22 Transoma Medical, Inc. Estimation of error angle in ultrasound flow measurement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233180A (en) * 1961-12-13 1966-02-01 Bowser Inc Frequency comparator
DE1516994A1 (de) * 1965-04-06 1969-09-25 Western Electric Co Frequenzvergleichsanordnung
FR1525939A (fr) * 1966-12-30 1968-05-24 C I T Cie Ind Des Telecommuni Circuit servant à déceler le synchronisme entre deux fréquences

Also Published As

Publication number Publication date
US4001680A (en) 1977-01-04
IT1055011B (it) 1981-12-21
SE382120B (sv) 1976-01-12
BR7600507A (pt) 1976-08-31
FI58405C (fi) 1981-01-12
GB1482398A (en) 1977-08-10
DE2602540A1 (de) 1976-08-05
FI58405B (fi) 1980-09-30

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: OY L M ERICSSON AB