Document Type
Patent
Publication Date
January 2000
Patent Number
60119853
Abstract
A diagnostic instrument for determining a cardiovascular system parameter. In one embodiment, the instrument takes the form of a portable pulse oximeter comprising a light to frequency converter (LFC) as a sensor. Also provided is a light to frequency converter comprising a photoresistor and capacitor in circuit communication with an inverting Schmitt trigger and configured such that the inverter generates a periodic electrical signal corresponding to the amount of electromagnetic radiation illuminating the photoresistor.
Application Number
08/751,645
Recommended Citation
Athan, Stephan Peter and Scharf, John Edward, "Medical diagnostic instrument using light-to-frequency converter" (2000). USF Patents. 826.
https://digitalcommons.usf.edu/usf_patents/826
Assignees
University of South Florida
Filing Date
11/18/1996
Primary/U.S. Class
600/322
