Power conserving adaptive control system for generating signal in portable medical devices
US6863652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2003 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Mar 10, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0209
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for adjusting power employed by a light emitting device used for medical applications, such as measurement of patient parameter. A system or device includes a light emitting device, a power unit coupled to the light emitting device for powering the light emitting device and responsive to a control signal for adjusting power applied to the light emitting device, and a control unit for providing the control signal and coupled to the power unit, the control signal being determined in response to a characteristic of a signal associated with a physiological parameter measured using light produced by the light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.