GB1229103A - - Google Patents

Info

Publication number
GB1229103A
GB1229103A GB1229103DA GB1229103A GB 1229103 A GB1229103 A GB 1229103A GB 1229103D A GB1229103D A GB 1229103DA GB 1229103 A GB1229103 A GB 1229103A
Authority
GB
United Kingdom
Prior art keywords
transfer
accumulator
june
period
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
Application number
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 GB1229103A publication Critical patent/GB1229103A/en
Expired 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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • 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
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Physiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • Complex Calculations (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
GB1229103D 1968-06-12 1969-06-04 Expired GB1229103A (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73632668A 1968-06-12 1968-06-12

Publications (1)

Publication Number Publication Date
GB1229103A true GB1229103A (cg-RX-API-DMAC10.html) 1971-04-21

Family

ID=24959446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229103D Expired GB1229103A (cg-RX-API-DMAC10.html) 1968-06-12 1969-06-04

Country Status (4)

Country Link
US (1) US3525039A (cg-RX-API-DMAC10.html)
DE (1) DE1929288A1 (cg-RX-API-DMAC10.html)
FR (1) FR2010792A1 (cg-RX-API-DMAC10.html)
GB (1) GB1229103A (cg-RX-API-DMAC10.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733475A (en) * 1969-11-22 1973-05-15 Siemens Ag Digital pulse sequence divider
DE2339839C2 (de) * 1973-08-07 1982-06-03 Teldix Gmbh, 6900 Heidelberg Verfahren zur Messung der Impulsfolgefrequenz und Anordnung zur Durchführung des Verfahrens
US3894218A (en) * 1974-03-14 1975-07-08 Bendix Corp Variable inverse period timer
US4053879A (en) * 1975-06-20 1977-10-11 General Signal Corporation Fail safe digital code rate generator
FR2458815A1 (fr) * 1979-06-12 1981-01-02 Alsthom Atlantique Procede et dispositif de mesure digitale d'une frequence par inversion de periode
US5077519A (en) * 1990-09-28 1991-12-31 Chrysler Corporation Pulse period to frequency conversion system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933249A (en) * 1955-11-02 1960-04-19 Gen Dynamics Corp Accumulator
GB1045975A (en) * 1963-06-28 1966-10-19 Atomic Energy Authority Uk Period meter and logarithmic ratemeter

Also Published As

Publication number Publication date
DE1929288A1 (de) 1969-12-18
FR2010792A1 (cg-RX-API-DMAC10.html) 1970-02-20
US3525039A (en) 1970-08-18

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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