公开(公告)号：US10734928B1

公开(公告)日：2020-08-04

申请号：US16370947

申请日：2019-03-30

申请人： Omron Corporation

发明人： Siddharth Sood ,  Donald Broadbent ,  Jesse Kolstad ,  David Naddor

IPC分类号： H02P6/18 ,  H02P8/14

摘要： A signal conditioning apparatus includes a timing extractor to received one or more stepper motor drive signal and convert each into a corresponding virtual quadrature trigger signal. A resolution scaler is coupled to an output of the timing extractor to scale the virtual quadrature trigger signals to adjust the transition frequency, thereby adjusting the resolution of an image captured by a camera receiving the trigger signals to be different than the print resolution created by the motor drive signals. A quadrature decoder is coupled to the output of the resolution scaler, wherein the quadrature decoder extracts timing and direction information from the virtual quadrature trigger signals received from the resolution scaler.