Variable threshold for rate volume monitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Jul 27, 1987
filing date -
Jul 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A variable threshold circuit is provided for use with a rate volume monitor. A series analog switch is controlled by a comparator which is biased by a voltage divider. During low rate exhalation by a patient the bias keeps the analog switch biased against conduction, and noise is suppressed. When exhalation is at a high rate a resistor is switched by a second analog switch into parallel with one of the resistors of the voltage divider to change the bias to the comparator, and thus to render the first analog switch conductive. At this time the high level of the exhilation signal masks any noise.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully