Abstract:
A metrology system includes a timing estimator, a sensor, and a position estimator. The timing estimator receives a control signal transmitted at a first timing of a first control loop and estimates a second timing at which the control signal is transmitted in a second control loop subsequent to the first control loop. The sensor senses position information of a wafer. The position estimator estimates the position information of the wafer at the estimated second timing based on the sensed position information of the wafer and outputs the estimated position information of the wafer based on a position request signal.
Abstract:
A dialog system uses an extended domain in order to have a dialog with a user using natural language. If a dialog pattern actually input by the user is different from a dialog pattern predicted by an expert, an extended domain generated in real time based on user input is used and an extended domain generated in advance is used to have a dialog with the user.