Method, Apparatus and System for Detecting In-Position State of Telephone Set User
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United States of America Patent
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app pub date -
Feb 25, 2015
filing date -
Aug 25, 2012
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Abandoned
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Abstract
A method for detecting an in-position state of a telephone set user, the method includes: converting, by the infrared sensor, an infrared light signal within a detection range of the infrared sensor into an electrical signal and transmitting the electrical signal to a comparator; comparing, by the comparator, the voltage of the electrical signal with a minimum sensible voltage when there is a person on the user seat of the telephone set and the body of the person is stationary; and if it is detected within a preset length of time that the voltage of the electrical signal is greater than the minimum sensible voltage, determining that the telephone set user is in position; and if it is not detected within the preset length of time that the voltage of the electrical signal is greater than the minimum sensible voltage, determining that the telephone set user is not in position.
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