DE68912635T2 - Frequenzzähler. - Google Patents

Frequenzzähler.

Info

Publication number
DE68912635T2
DE68912635T2 DE89301562T DE68912635T DE68912635T2 DE 68912635 T2 DE68912635 T2 DE 68912635T2 DE 89301562 T DE89301562 T DE 89301562T DE 68912635 T DE68912635 T DE 68912635T DE 68912635 T2 DE68912635 T2 DE 68912635T2
Authority
DE
Germany
Prior art keywords
frequency counter
counter
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.)
Expired - Lifetime
Application number
DE89301562T
Other languages
English (en)
Other versions
DE68912635D1 (de
Inventor
Neil Edwin Thomas
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments 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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Application granted granted Critical
Publication of DE68912635D1 publication Critical patent/DE68912635D1/de
Publication of DE68912635T2 publication Critical patent/DE68912635T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
DE89301562T 1988-04-21 1989-02-17 Frequenzzähler. Expired - Lifetime DE68912635T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8809398A GB2217536B (en) 1988-04-21 1988-04-21 Frequency counter

Publications (2)

Publication Number Publication Date
DE68912635D1 DE68912635D1 (de) 1994-03-10
DE68912635T2 true DE68912635T2 (de) 1994-05-11

Family

ID=10635562

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89301562T Expired - Lifetime DE68912635T2 (de) 1988-04-21 1989-02-17 Frequenzzähler.

Country Status (5)

Country Link
US (1) US4984254A (de)
EP (1) EP0338659B1 (de)
JP (1) JPH01318971A (de)
DE (1) DE68912635T2 (de)
GB (1) GB2217536B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5686835A (en) * 1989-01-18 1997-11-11 Nippondenso Co., Ltd Physical quantity detection device for converting a physical quantity into a corresponding time interval
US5459855A (en) * 1992-08-10 1995-10-17 Hewlett-Packard Company Frequency ratio detector for determining fixed frequency ratios in a computer system
US5442278A (en) * 1993-09-24 1995-08-15 Acer Peripherals, Inc. Apparatus for detecting the frequency of an input signal by counting pulses during an input signal cycle
KR100719655B1 (ko) * 2003-05-28 2007-05-17 마츠시타 덴끼 산교 가부시키가이샤 디지털 인터페이스 디코딩 수신 장치
JP2009250807A (ja) * 2008-04-07 2009-10-29 Seiko Epson Corp 周波数測定装置及び測定方法
JP2010271091A (ja) * 2009-05-20 2010-12-02 Seiko Epson Corp 周波数測定装置
JP5517033B2 (ja) * 2009-05-22 2014-06-11 セイコーエプソン株式会社 周波数測定装置
JP5440999B2 (ja) * 2009-05-22 2014-03-12 セイコーエプソン株式会社 周波数測定装置
JP5582447B2 (ja) * 2009-08-27 2014-09-03 セイコーエプソン株式会社 電気回路、同電気回路を備えたセンサーシステム、及び同電気回路を備えたセンサーデバイス
JP5815918B2 (ja) 2009-10-06 2015-11-17 セイコーエプソン株式会社 周波数測定方法、周波数測定装置及び周波数測定装置を備えた装置
JP5876975B2 (ja) * 2009-10-08 2016-03-02 セイコーエプソン株式会社 周波数測定装置及び周波数測定装置における変速分周信号の生成方法
JP5883558B2 (ja) 2010-08-31 2016-03-15 セイコーエプソン株式会社 周波数測定装置及び電子機器
RU187313U1 (ru) * 2018-05-23 2019-03-01 федеральное государственное автономное образовательное учреждение высшего образования "Южный федеральный университет" (Южный федеральный университет) Цифровой частотомер для маломощных интегральных схем
RU197391U1 (ru) * 2018-07-30 2020-04-23 Пётр Колестратович Плотников Цифровой частотомер
RU2730047C1 (ru) * 2019-08-13 2020-08-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Цифровой частотомер

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235800A (en) * 1961-06-26 1966-02-15 Leeds & Northrup Co System for measuring frequency by comparing unknown to reference and determining therate of change of phase
US3609326A (en) * 1969-01-22 1971-09-28 Hewlett Packard Co Counting apparatus and method using separate counters for reference and unknown signal
US3735387A (en) * 1969-08-21 1973-05-22 Gen Electric Means for inhibiting flutter in a numerical display
IT1047443B (it) * 1975-09-23 1980-09-10 Fiat Spa Tachimetro digitale
DE2552079C2 (de) * 1975-11-20 1983-07-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Bestimmung des Mittelwertes einer Frequenz
US4142177A (en) * 1976-08-12 1979-02-27 Motorola, Inc. Digital tone decoder system
GB1583855A (en) * 1977-08-02 1981-02-04 Smiths Industries Ltd Analogue-to-digital converters
US4215308A (en) * 1978-10-30 1980-07-29 Hewlett-Packard Company Self calibrating crystal controlled frequency counter method and apparatus
CA1144986A (en) * 1980-08-20 1983-04-19 Canadian General Electric Company Limited Frequency determining apparatus
SU976396A1 (ru) * 1981-04-20 1982-11-23 Предприятие П/Я Г-4590 Цифровой частотомер
GB2140239B (en) * 1983-05-18 1986-10-08 Sony Corp Television frame signal synchronizing circuits

Also Published As

Publication number Publication date
GB2217536A (en) 1989-10-25
JPH01318971A (ja) 1989-12-25
US4984254A (en) 1991-01-08
DE68912635D1 (de) 1994-03-10
EP0338659A1 (de) 1989-10-25
EP0338659B1 (de) 1994-01-26
GB8809398D0 (en) 1988-05-25
GB2217536B (en) 1992-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee