Fixed interval variable period pulse rate measuring method and system and tachometer system using same
US4257005A · kind A · utility
13Cited by
2References
13Claims
0Family size
Inventor
Key dates
| Filing date | May 23, 1979 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | May 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/489
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fixed interval, variable period technique for measuring pulse rate including defining the start and the end of a fixed measuring interval, counting the pulses whose rate is to be measured beginning in response to the start of the measuring interval and stopping in response to the end of the measuring interval; measuring the period of time between the occurrence of the first counted pulse and the last counted pulse; and dividing the number of pulses counted during a measuring period by the period to determine the pulse rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.