Pulse rate sensor system
US5243992A · kind A · utility
79Cited by
17References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02438
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse rate sensor system is packaged in a wristwatch sized assembly and is worn by the user to provide an accurate determination of pulse rate. A tonometer sensor is provided to detect heartbeat pressure waves produced by a superficial artery. A microcomputer manipulates the unprocessed tonometer sensor element signals using multiple algorithms to determine an accurate pulse rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.