发明名称 Frequency synthesizer having a microcontroller
摘要 <p>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). &lt;IMAGE&gt;</p>
申请公布号 EP1372267(A1) 申请公布日期 2003.12.17
申请号 EP20030008420 申请日期 2003.04.11
申请人 COLTENE/WHALEDENT, INC. 发明人 COLOMBO, JOSEPH G.;GOFMAN, IGOR. Y.
分类号 H03K5/15;H03K5/151;(IPC1-7):H03L7/181;H03K3/00 主分类号 H03K5/15
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