The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2007
Filed:
Oct. 27, 2004
Rob Tousain, Eindhoven, NL;
Rob Tousain, Eindhoven, NL;
ASML Netherlands B.V., Veldhoven, NL;
Abstract
A motion control system is presented. In an embodiment of the invention, the motion control system compares a motion profile setpoint generator configured to generate a set of profile setpoint signals including a position profile setpoint signal and additional profile setpoint signals. The feedforward controller generates a feedforward signal by summing the additional profile setpoint signals, the additional profile setpoint signals being multiplied by a respective coefficient. The motion control system is configured to (a) select an initial setting of the respective coefficients, (b) cause the motion profile setpoint generator to generate a set of profile setpoint signals so as to execute a motion profile, (c) measure an error between the position profile and an output position signal, and (d) update the respective coefficients by adding a product of the error and a respective learning gain thereto. In an implementation, standard motion controllers can be used.