Optical sensor biosignal measurement apparatus and method of controlling optical sensor of the apparatus
US8655425B2 · kind B2 · utility
4Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2008 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14552
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An optical sensor biosignal measurement apparatus including an optical sensor having a luminous element to emit light towards the skin of a user and a photo detector to detect light from the skin of the user; a light quantity adjustment member to adjust an optical transmission area of the photo detector; and a light quantity controller to detect the quantity of light detected by the photo detector, and control the light quantity adjustment member to adjust the optical transmission area of the photo detector according to the quantity of light is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.