Abstract: The present invention relates to a cap mounted with a bone conduction module. The cap includes a body part directly contacting a user's head, a cap part protruding from a front portion of the body part, and a bone conduction module provided on the body part and the cap part. The body part is provided on both sides with audio signal output parts, the cap part is provided on one side with a first recess part and on the other side with a second recess part, a wireless communication part of the bone conduction module is inserted in the first recess part, a battery part of the bone conduction module is inserted in the second recess part, and the first recess part and the second recess part are disposed spaced apart on both sides of the cap part and have a shallower depth than the thickness of the cap part.

Abstract: A hybrid predictor for predicting the output of a process, and a hybrid prediction method using the hybrid predictor. Also, a system for and a method of controlling a process using the hybrid predictor and hybrid prediction method are provided. In order to obtain a shifted prediction vector and step response coefficients, the hybrid predictor uses a parameter model which can be updated in accordance with a variation in the process. The control method includes the steps of predicting process output signals generated in a prediction horizon, based on input signals applied to the process, correcting the predicted values, based on output signal values measured at the next scan, comparing the corrected prediction value with a reference value to derive an error vector, calculating a control signal to minimize the error vector, and applying the control signal to the process. The hybrid predictor is characterized by an addition of a model parameter estimator and a model response converter.