Digital pulse oximeter with automatic direction-changing function
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United States of America Patent
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Oct 25, 2016
Grant Date -
Mar 27, 2014
app pub date -
Sep 24, 2012
filing date -
Sep 24, 2012
priority date (Note) -
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Abstract
A digital pulse oximeter with automatic orientation change function, comprising a housing that is configured to clamp a human finger being tested, a display window disposed at outside of and atop the housing, a circuit being disposed within the housing for calculating and analyzing the tested signals, and displaying them in the display window atop the housing via a display, wherein the said circuit has only one control key disposed on the housing, the said circuit allowing the display contents of the display to be always oriented properly for easy reading by connecting with one two-axis or three-axis accelerometer. The digital pulse oximeter of the present invention is featured with small size and convenient operation and can shift from one function to another using only one control key in conjunction with the interface display, thereby increasing the functions of small-sized pulse oximeters. The present invention uses accelerometers to judge the placing location of the apparatus without the need for any operation from the user, and the apparatus can automatically change the display orientation of the display, thus providing great convenience to the user.
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