Microcontroller unit
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United States of America Patent
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-
May 31, 2005
Grant Date -
Dec 4, 2003
app pub date -
Jun 4, 2002
filing date -
Jun 4, 2002
priority date (Note) -
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Abstract
A micro-controller adjustably provides a scanning frequency for operating a driver for an ultrasonic device. The frequency is adjusted within a defined range until an acknowledgement signal is provided to the micro-controller to lock a currently selected frequency as the operating frequency. An indicator indicates when a frequency has been selected outside of the defined range. The device is preferably implemented as a complex programmable logic device (CPLD).
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