Micro range radio frequency (RF) communications link
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United States of America Patent
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-
Oct 6, 2009
Grant Date -
Jul 5, 2007
app pub date -
Jan 31, 2006
filing date -
Dec 30, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A micro range RF data transmission system comprising at least one transmitter incorporated in a moving device and at least one receiver positioned along a fixed path that can be aligned to create a data transfer point. The moving device moves along a fixed path. Each of the at least one receiver is positioned along the fixed path such that when the moving device moves along the fixed path, one of the transmitters aligns with one of the receivers creating the data transfer point. The transmitter will only transmit a micro range signal when the transmitter is at the data transfer point. Each receiver includes an electromagnetic shield formed around the perimeter of the receiver to form a directional channel for the micro range signal. A control system is used for controlling an industrial sheet-making device. The control system uses multiple data transfer points as the backbone for bi-directional communication.
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