GB1228460A - - Google Patents

Info

Publication number
GB1228460A
GB1228460A GB4291668A GB1228460DA GB1228460A GB 1228460 A GB1228460 A GB 1228460A GB 4291668 A GB4291668 A GB 4291668A GB 1228460D A GB1228460D A GB 1228460DA GB 1228460 A GB1228460 A GB 1228460A
Authority
GB
United Kingdom
Prior art keywords
signal
windings
diodes
operates
pulse width
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
Application number
GB4291668A
Other languages
English (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
Publication of GB1228460A publication Critical patent/GB1228460A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • 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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Cardiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Power Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Recording Measured Values (AREA)
GB4291668A 1968-09-10 1968-09-10 Expired GB1228460A ( )

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4291668 1968-09-10
FR165701 1968-09-10

Publications (1)

Publication Number Publication Date
GB1228460A true GB1228460A ( ) 1971-04-15

Family

ID=26182218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4291668A Expired GB1228460A ( ) 1968-09-10 1968-09-10

Country Status (2)

Country Link
FR (1) FR1581848A ( )
GB (1) GB1228460A ( )

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184827B1 ( ) * 1972-05-15 1976-11-12 Eastman Kodak Co

Also Published As

Publication number Publication date
FR1581848A ( ) 1969-09-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees