Digitizing objects in a picture is discussed herein. An elastomeric jacket is extruded over insulated conductors. In one implementation, the BER checker compares the serial data signal against a reference data signal to determine the BER for the serial data signal. The control signal generator produces a low-frequency periodic control signal, the frequency of which is higher than a switching frequency of frames of the monitor. , replace a component, call a physician, andor enter patient data card, etc. When a DC voltage is to be applied to the lower electrode 3 by a DC power portion 18 for electrostatic adsorption to adsorb and hold the silicon wafer 6 onto the lower electrode 3 in the plasma treatment, the protective tape 6a is utilized as a dielectric for the electrostatic adsorption.