JPS567592B2 - - Google Patents

Info

Publication number
JPS567592B2
JPS567592B2 JP12591574A JP12591574A JPS567592B2 JP S567592 B2 JPS567592 B2 JP S567592B2 JP 12591574 A JP12591574 A JP 12591574A JP 12591574 A JP12591574 A JP 12591574A JP S567592 B2 JPS567592 B2 JP S567592B2
Authority
JP
Japan
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
JP12591574A
Other languages
Japanese (ja)
Other versions
JPS5162764A (en]
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 filed Critical
Priority to JP12591574A priority Critical patent/JPS567592B2/ja
Priority to DE2546856A priority patent/DE2546856C3/de
Priority to CH1350475A priority patent/CH608620A5/xx
Priority to US05/624,680 priority patent/US3991365A/en
Priority to GB44477/75A priority patent/GB1503169A/en
Priority to FR7533058A priority patent/FR2289917A1/fr
Priority to SE7512149A priority patent/SE7512149L/xx
Publication of JPS5162764A publication Critical patent/JPS5162764A/ja
Publication of JPS567592B2 publication Critical patent/JPS567592B2/ja
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/02—Measuring pulse or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0866—Clinical applications involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
    • 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

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • General Physics & Mathematics (AREA)
  • Gynecology & Obstetrics (AREA)
  • Pregnancy & Childbirth (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
JP12591574A 1974-10-31 1974-10-31 Expired JPS567592B2 (en])

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP12591574A JPS567592B2 (en]) 1974-10-31 1974-10-31
DE2546856A DE2546856C3 (de) 1974-10-31 1975-10-18 Verfahren und Vorrichtung zum Messen der Frequenz bzw. Periodendauer eines Signals
CH1350475A CH608620A5 (en]) 1974-10-31 1975-10-20
US05/624,680 US3991365A (en) 1974-10-31 1975-10-22 Instantaneous frequency measurement system
GB44477/75A GB1503169A (en) 1974-10-31 1975-10-28 Method and apparatus for measuring the frequency and/or period of a periodic signal having random components
FR7533058A FR2289917A1 (fr) 1974-10-31 1975-10-29 Systeme de mesure de frequence instantanee
SE7512149A SE7512149L (sv) 1974-10-31 1975-10-30 Sett och anordning for metning av en signals frekvens resp. periodtid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12591574A JPS567592B2 (en]) 1974-10-31 1974-10-31

Publications (2)

Publication Number Publication Date
JPS5162764A JPS5162764A (en]) 1976-05-31
JPS567592B2 true JPS567592B2 (en]) 1981-02-18

Family

ID=14922063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12591574A Expired JPS567592B2 (en]) 1974-10-31 1974-10-31

Country Status (7)

Country Link
US (1) US3991365A (en])
JP (1) JPS567592B2 (en])
CH (1) CH608620A5 (en])
DE (1) DE2546856C3 (en])
FR (1) FR2289917A1 (en])
GB (1) GB1503169A (en])
SE (1) SE7512149L (en])

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143650A (en) * 1976-10-06 1979-03-13 Hoffmann-La Roche Inc. Directional doppler ultrasound systems for biosignal acquisition and method of using the same
US4174707A (en) * 1976-12-27 1979-11-20 American Optical Corporation Apparatus and process for antifact rejection through cross correlation in sphygmometry
US4135243A (en) * 1977-07-15 1979-01-16 Hewlett-Packard Company Single sampler heterodyne method for wideband frequency measurement
DE2818768C2 (de) * 1978-04-28 1986-07-24 Hewlett-Packard GmbH, 7030 Böblingen Verfahren und Vorrichtung zum Messen der Frequenz bzw. der Periodendauer der Grundschwingung eines annähernd periodischen Eingangssignales
EP0010922B1 (en) * 1978-10-27 1983-03-30 Consumer Microcircuits Limited Device for determining periodic components of an alternating signal
US4540946A (en) * 1980-06-06 1985-09-10 National Research Development Corp. Variable characteristic filters
US4463425A (en) * 1980-07-17 1984-07-31 Terumo Corporation Period measurement system
US4456959A (en) * 1980-07-17 1984-06-26 Terumo Corporation Period measurement system
US4428381A (en) 1981-03-13 1984-01-31 Medtronic, Inc. Monitoring device
US4372324A (en) * 1981-08-17 1983-02-08 Hewlett-Packard Company Analog peak voltage detector in a defibrillator
JPS596031A (ja) * 1982-07-02 1984-01-13 株式会社日立メデイコ 超音波胎児心拍数計測装置
US4573479A (en) * 1984-06-22 1986-03-04 American Home Products Corporation Systems and methods for monitoring the fetal heart
US4569356A (en) * 1984-11-05 1986-02-11 Nihon Kohden Corporation Method and apparatus for detecting fetal heart rate by autocorrelation
US4848355A (en) * 1985-05-20 1989-07-18 Matsushita Electric Industrial Co., Ltd. Ultrasonic doppler blood flowmeter
DE3518967A1 (de) * 1985-05-25 1986-11-27 Hewlett-Packard GmbH, 7030 Böblingen Schaltungsanordnung zum erfassen der herzschlagsbewegung
JPS63192421A (ja) * 1987-02-03 1988-08-09 テルモ株式会社 携帯型胎児監視装置
US4843564A (en) * 1987-04-23 1989-06-27 Tsi Incorporated Apparatus and method for measuring frequency of coherent component of a composite signal
JPH01180201U (en]) * 1988-06-08 1989-12-25
US4963816A (en) * 1989-07-05 1990-10-16 The United States Of America As Represented By The Secretary Of The Air Force Instantaneous frequency measurement (IFM) receiver with only two delay lines
US5128607A (en) * 1990-11-09 1992-07-07 Hewlett-Packard Company Constant events frequency measurement and fast inverse circuit
US5170791A (en) * 1991-03-28 1992-12-15 Hewlett-Packard Company Method and apparatus for calculating the fetal heart rate
US5198748A (en) * 1991-10-28 1993-03-30 The United States Of America As Represented By The Secretary Of The Air Force Frequency measurement receiver with bandwidth improvement through synchronized phase shifted sampling
US5509421A (en) * 1995-04-25 1996-04-23 Analogic Corporation System, with sensor positioning indicator, for monitoring a biological signal
WO1999050679A2 (en) * 1998-03-30 1999-10-07 3Com Corporation Low complexity frequency estimator and interference cancellation method and device
US6442506B1 (en) * 1999-11-08 2002-08-27 TREVIñO GEORGE Spectrum analysis method and apparatus
JP4679755B2 (ja) * 2001-05-10 2011-04-27 株式会社デンソー 脈拍変動解析装置
GB0130906D0 (en) * 2001-12-22 2002-02-13 Jopejo Ltd Heart monitor
JP3729143B2 (ja) * 2002-03-14 2005-12-21 株式会社デンソー 脈波計測装置
US6942621B2 (en) * 2002-07-11 2005-09-13 Ge Medical Systems Information Technologies, Inc. Method and apparatus for detecting weak physiological signals
US20040133115A1 (en) * 2002-11-01 2004-07-08 Hamilton Emily F. Method and apparatus for identifying heart rate feature events
US7734464B2 (en) * 2005-05-20 2010-06-08 Tektronix, Inc. RF autocorrelation signal trigger generator
US8439842B2 (en) * 2009-01-29 2013-05-14 General Electric Company Method and device for controlling transmission power of an active transducer
US8491481B2 (en) * 2009-01-29 2013-07-23 General Electric Company System and method for measuring the instantaneous period of a quasi-periodic signal
CN103052356B (zh) * 2010-08-02 2015-11-25 皇家飞利浦电子股份有限公司 减少胎儿监测期间的超声信号含混性的方法
PT105423A (pt) 2010-12-10 2012-06-11 Univ Aveiro Sistema e método de medição fotónica da frequência por modulação electro-óptica complementar
RU2497445C1 (ru) * 2012-03-26 2013-11-10 Сергей Анатольевич Трифонов Способ диагностики состояния плода и матери в антенатальный период беременности и устройство для его реализации
RU2489968C1 (ru) * 2012-04-13 2013-08-20 Общество с ограниченной ответственностью "Юсонтек" Способ измерения частоты сердечных сокращений плода
US9451893B2 (en) * 2014-08-18 2016-09-27 Cameron Health, Inc. Calculation of self-correlation in an implantable cardiac device
CN108289653B (zh) 2015-09-15 2021-04-27 皇家飞利浦有限公司 用于确定胎儿心率的设备和方法
US10912474B2 (en) * 2016-03-10 2021-02-09 Epitronic Holdings Pte Ltd. Microelectronic sensor for use in hypersensitive microphones
DK3426133T3 (da) * 2016-03-10 2020-08-10 Epitronic Holdings Pte Ltd Mikroelektroniske sensorer til ikke-invasiv monitorering af fysiologiske parametre
EP3881754A1 (en) 2020-03-16 2021-09-22 Koninklijke Philips N.V. Processing unit and method for use in fetal monitoring
CN112269056B (zh) * 2020-10-10 2024-04-12 许继电气股份有限公司 一种高压变频继电保护装置的硬件测频电路
JP7482058B2 (ja) * 2021-02-16 2024-05-13 株式会社東芝 部分放電計測システムおよび部分放電計測方法
JP2024106750A (ja) * 2023-01-27 2024-08-08 株式会社日立製作所 コンピュータシステム、処理方法、及び処理プログラム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813654A (en) * 1971-10-05 1974-05-28 Sonicaid Ltd Diagnostic apparatus for fetal heartbeat monitoring
US3934577A (en) * 1972-12-08 1976-01-27 Hoffmann-La Roche Inc. Fetal heart rate monitoring apparatus

Also Published As

Publication number Publication date
GB1503169A (en) 1978-03-08
JPS5162764A (en]) 1976-05-31
DE2546856A1 (de) 1976-05-06
FR2289917B1 (en]) 1981-09-25
FR2289917A1 (fr) 1976-05-28
CH608620A5 (en]) 1979-01-15
US3991365A (en) 1976-11-09
SE7512149L (sv) 1976-05-03
DE2546856B2 (de) 1980-04-17
DE2546856C3 (de) 1981-01-15

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