Wrist borne pulse meter/chronometer
US4224948A · kind A · utility
100Cited by
7References
15Claims
0Family size
Inventors
Key dates
| Filing date | Nov 24, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Nov 24, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B47/063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combined watch, elapsed time counter and pulse rate meter which is totally portable and worn as an ordinary wristwatch. The timer and pulse rate meter employ the precise timing elements such as a crystal oscillator of the digital watch. Using such precise timing elements, the human's pulse may be measured on a pulse by pulse basis and the instantaneous and average pulse values simultaneously displayed to allow a running comparison and noting of pulse aberrations. A novel pulse detector assembly is located on the inner face of the watch assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.