JPS6146566A - 絶対値回路 - Google Patents

絶対値回路

Info

Publication number
JPS6146566A
JPS6146566A JP59169062A JP16906284A JPS6146566A JP S6146566 A JPS6146566 A JP S6146566A JP 59169062 A JP59169062 A JP 59169062A JP 16906284 A JP16906284 A JP 16906284A JP S6146566 A JPS6146566 A JP S6146566A
Authority
JP
Japan
Prior art keywords
transistor
signal
absolute value
output
resistor
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.)
Granted
Application number
JP59169062A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6359197B2 (zh
Inventor
Mitsuru Hayakawa
充 早川
Nobuyuki Suzuki
鈴木　宣行
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP59169062A priority Critical patent/JPS6146566A/ja
Priority claimed from JP16906284U external-priority patent/JPS6185204U/ja
Priority to GB08527111A priority patent/GB2168817A/en
Priority to FR8516370A priority patent/FR2572644A1/fr
Priority to DE19853539564 priority patent/DE3539564A1/de
Publication of JPS6146566A publication Critical patent/JPS6146566A/ja
Publication of JPS6359197B2 publication Critical patent/JPS6359197B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/332—Portable devices specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/333—Recording apparatus specially adapted therefor
    • A61B5/335—Recording apparatus specially adapted therefor using integrated circuit memory devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0462—Apparatus with built-in sensors
    • A61B2560/0468—Built-in electrodes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Physiology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Amplifiers (AREA)
JP59169062A 1984-08-13 1984-08-13 絶対値回路 Granted JPS6146566A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP59169062A JPS6146566A (ja) 1984-08-13 1984-08-13 絶対値回路
GB08527111A GB2168817A (en) 1984-08-13 1985-11-04 Electrocardiography device
FR8516370A FR2572644A1 (fr) 1984-08-13 1985-11-05 Dispositif d'electrocardiographie
DE19853539564 DE3539564A1 (de) 1984-08-13 1985-11-07 Elektrokardiographie-vorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59169062A JPS6146566A (ja) 1984-08-13 1984-08-13 絶対値回路
JP16906284U JPS6185204U (zh) 1984-11-07 1984-11-07

Publications (2)

Publication Number Publication Date
JPS6146566A true JPS6146566A (ja) 1986-03-06
JPS6359197B2 JPS6359197B2 (zh) 1988-11-18

Family

ID=26492532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59169062A Granted JPS6146566A (ja) 1984-08-13 1984-08-13 絶対値回路

Country Status (4)

Country Link
JP (1) JPS6146566A (zh)
DE (1) DE3539564A1 (zh)
FR (1) FR2572644A1 (zh)
GB (1) GB2168817A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259402A (ja) * 1985-09-09 1987-03-16 Toshiba Corp ピ−ク検波回路
JPH0310410A (ja) * 1989-06-07 1991-01-18 Nec Corp 絶対値回路

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299667A1 (en) * 1987-07-10 1989-01-18 Koike Seiki Kabushiki Kaisha Portable electrocardiograph
FR2666977B1 (fr) * 1990-09-20 1993-08-13 Lefebvre Jean Marie Electrocardiographe portable.
US5339823A (en) * 1992-08-07 1994-08-23 Survival Technology, Inc. Twelve-lead portable heart monitor and method
DE19623149C1 (de) * 1996-06-10 1998-01-29 Fraunhofer Ges Forschung Diagnosesystem im Scheckkartenformat
GB2348707B (en) 1999-04-07 2003-07-09 Healthcare Technology Ltd Heart activity detection apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120294A (en) * 1976-08-26 1978-10-17 Wolfe Donna L Electrode system for acquiring electrical signals from the heart
US4221223A (en) * 1978-05-24 1980-09-09 Medtronic, Inc. Cardiac monitoring apparatus
DE2847087A1 (de) * 1978-10-28 1980-04-30 Sachs Elektronik Kg Hugo Pulsfrequenzmesser
US4248244A (en) * 1979-04-06 1981-02-03 Charnitski Richard D Method for measuring heart beat rate and circuit means for same
JPS5886141A (ja) * 1981-11-17 1983-05-23 セイコーインスツルメンツ株式会社 脈拍計
JPS58149745A (ja) * 1982-02-26 1983-09-06 セイコーインスツルメンツ株式会社 脈拍計付聴診器
EP0101870A3 (de) * 1982-08-05 1986-09-17 Kontron-Holding Ag Tragbares Elektrokardiologiegerät
FR2551647A1 (fr) * 1983-09-13 1985-03-15 Gilles Ascher Appareil portatif a bracelet destine a l'enregistrement d'electrocardiogrammes
EP0106756A1 (fr) * 1982-10-05 1984-04-25 Gilles Ascher Appareil portatif d'enregistrement d'électrocardiogrammes
FR2554704B1 (fr) * 1983-11-10 1987-04-24 Ascher Gilles Appareil portatif de surveillance de l'activite cardiaque

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6259402A (ja) * 1985-09-09 1987-03-16 Toshiba Corp ピ−ク検波回路
JPH0783215B2 (ja) * 1985-09-09 1995-09-06 株式会社東芝 ピ−ク検波回路
JPH0310410A (ja) * 1989-06-07 1991-01-18 Nec Corp 絶対値回路
JP2536156B2 (ja) * 1989-06-07 1996-09-18 日本電気株式会社 絶対値回路

Also Published As

Publication number Publication date
FR2572644A1 (fr) 1986-05-09
JPS6359197B2 (zh) 1988-11-18
GB2168817A (en) 1986-06-25
DE3539564A1 (de) 1986-05-15
GB8527111D0 (en) 1985-12-11

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