GB2016765A - Recording Time Intervals - Google Patents

Recording Time Intervals

Info

Publication number
GB2016765A
GB2016765A GB7905495A GB7905495A GB2016765A GB 2016765 A GB2016765 A GB 2016765A GB 7905495 A GB7905495 A GB 7905495A GB 7905495 A GB7905495 A GB 7905495A GB 2016765 A GB2016765 A GB 2016765A
Authority
GB
United Kingdom
Prior art keywords
digital
time interval
store
counter
stored
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
GB7905495A
Other versions
GB2016765B (en
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.)
OXFORD MEDICAL SYSTEMS Ltd
Original Assignee
OXFORD MEDICAL SYSTEMS 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 OXFORD MEDICAL SYSTEMS Ltd filed Critical OXFORD MEDICAL SYSTEMS Ltd
Priority to GB7905495A priority Critical patent/GB2016765B/en
Publication of GB2016765A publication Critical patent/GB2016765A/en
Application granted granted Critical
Publication of GB2016765B publication Critical patent/GB2016765B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • 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]
    • A61B5/333—Recording apparatus specially adapted therefor
    • A61B5/335—Recording apparatus specially adapted therefor using integrated circuit memory devices

Abstract

A time interval recorder stores the magnitudes of time intervals between events, e.g. heartbeats, over a period. The data is stored as a sequence of pairs of numbers representing respectively the magnitude of a time interval and the number of successive occurrences of the same time interval. The recorder comprises a digital timer 4, a comparator 9, a counter 10 and a digital store 12. Timer 4 provides a digital indication of each successive time interval which is compared in comparator 9 with the immediately previous digital indication. If there is equality then counter 10 is incremented. If there is non-equality then the count is stored in store 12 together with the digital value of the previous time interval and counter 10 is then reset. Store 12 may also store digital indicators of elapsed time in the same sequence of stored numbers. <IMAGE>
GB7905495A 1978-02-22 1979-02-16 Recording time intervals Expired GB2016765B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7905495A GB2016765B (en) 1978-02-22 1979-02-16 Recording time intervals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB696478 1978-02-22
GB7905495A GB2016765B (en) 1978-02-22 1979-02-16 Recording time intervals

Publications (2)

Publication Number Publication Date
GB2016765A true GB2016765A (en) 1979-09-26
GB2016765B GB2016765B (en) 1982-03-31

Family

ID=26241058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905495A Expired GB2016765B (en) 1978-02-22 1979-02-16 Recording time intervals

Country Status (1)

Country Link
GB (1) GB2016765B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653845GA3 (en) * 1982-12-26 1986-01-31 Multi-purpose watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653845GA3 (en) * 1982-12-26 1986-01-31 Multi-purpose watch

Also Published As

Publication number Publication date
GB2016765B (en) 1982-03-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee