Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Frequency or repetition rate conversion or control
Reexamination Certificate
2005-05-31
2005-05-31
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Frequency or repetition rate conversion or control
C377S031000
Reexamination Certificate
active
06900673
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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Colombo Joseph G.
Gofman Igor Y.
Callahan Timothy P.
Coltene / Whaledent Inc.
Cox Cassandra
Katten Muchin Zavis & Rosenman
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