System and method for metallic object detection in a media transport system
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United States of America Patent
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Nov 26, 2019
Grant Date -
Jul 26, 2018
app pub date -
Mar 23, 2018
filing date -
Dec 30, 2014
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Abstract
Systems and methods for detecting the presence of metallic objects in media to be conveyed in a medium transport system are disclosed. One or more induction sensors are included in the medium transport system to detect the presence of metal in the transported media, with detection signals sent from the sensors to a system processing unit. An ultrasonic detector is employed in some embodiments to output another detection signal. One or more microphones may also be included, for detecting the sound created as the medium is being transported. The system processing unit analyzes various detection signals and analyzes computed sound values from the microphones, to determine the presence and location of metal in the media. A position jam detector may assist in determining jams of the media along the medium transport path.
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