DE1499707A1 - Aufnahme- und Wiedergabeeinrichtung - Google Patents

Aufnahme- und Wiedergabeeinrichtung

Info

Publication number
DE1499707A1
DE1499707A1 DE19661499707 DE1499707A DE1499707A1 DE 1499707 A1 DE1499707 A1 DE 1499707A1 DE 19661499707 DE19661499707 DE 19661499707 DE 1499707 A DE1499707 A DE 1499707A DE 1499707 A1 DE1499707 A1 DE 1499707A1
Authority
DE
Germany
Prior art keywords
recording
input
impedance
operational amplifier
playback device
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.)
Pending
Application number
DE19661499707
Other languages
German (de)
English (en)
Inventor
Donald Wortzman
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE1499707A1 publication Critical patent/DE1499707A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • 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
    • A61B5/336—Magnetic recording apparatus
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/04—Input or output devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • G11B20/225—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Cardiology (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Computer Hardware Design (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
DE19661499707 1965-08-04 1966-07-23 Aufnahme- und Wiedergabeeinrichtung Pending DE1499707A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47712065A 1965-08-04 1965-08-04

Publications (1)

Publication Number Publication Date
DE1499707A1 true DE1499707A1 (de) 1970-07-09

Family

ID=23894623

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661499707 Pending DE1499707A1 (de) 1965-08-04 1966-07-23 Aufnahme- und Wiedergabeeinrichtung

Country Status (4)

Country Link
US (1) US3423540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1499707A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1488677A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1129866A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530257A (en) * 1968-07-22 1970-09-22 Teledyne Geotech Modulation of an oscillatory circuit for driving a magnetic recording head
US3997915A (en) * 1975-04-24 1976-12-14 Basf Aktiengesellschaft Frequency modulating and demodulating method and apparatus
US4435734A (en) 1981-11-12 1984-03-06 Vas Corporation FM Video recording and reproducing system
US4503859A (en) * 1983-06-16 1985-03-12 William Beaumont Hospital Esophageal function and EKG monitor
CN102152672B (zh) * 2010-11-03 2013-01-16 湖州电力局 半自动送料封印压铸机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658956A (en) * 1947-04-21 1953-11-10 Clevite Corp Magnetic recording and reproducing
US2909617A (en) * 1954-06-30 1959-10-20 Webster Electric Co Inc Recorder-reproducer
US2921991A (en) * 1956-04-27 1960-01-19 Acf Ind Inc Magnetic recorder
US3037093A (en) * 1959-09-29 1962-05-29 Rca Corp Magnetic recording and reproducing apparatus

Also Published As

Publication number Publication date
GB1129866A (en) 1968-10-09
US3423540A (en) 1969-01-21
FR1488677A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-10-25

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