Patent ID: 7417392
Filing Date: 2008-08-26
Classification: B41F,B41P,G05B,H02P,H03L

Abstract:
1. An electronic line shaft systems comprising: multiple servant motor drives receiving a position signal and a strobe signal and connectable to corresponding motor-driven line shafts to synchronize a position of the line shafts to the position signal at a time of the strobe signal; a master controller receiving a position signal from an encoder indicating the position of a master line shaft; a network communicating between the multiple servant motor drives and the master motor drive, the network having a communication delay; a synchronizing system including a predictor accepting the position signal from the master controller and providing a predicted position signal to the servant motor drives together with a strobe signal, the predicted position signal representing a prediction of a future position of the motor at a predetermined time in the future coinciding with a time of the strobe signal; whereby the communication delay may be corrected.