Pulse oximetry sensor switchover
US8068890B2 · kind B2 · utility
0Cited by
130References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Sep 29, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02427
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Switchover of a filtered and unfiltered pulse oximetry sensor is provided with gain controlled amplifiers controlled by separate gain control voltages that may change in opposite directions over a period of time. The outputs of the gain controlled amplifiers may be coupled to voltage-to-current converters whose outputs may be coupled in parallel. The parallel coupled outputs of the voltage-to-current converters may produce a current signal representative of the output of the gain controlled amplifier having the highest gain/signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.