An embodiment of the memory cell for an EEPROM device may comprise a trench coupling capacitor wherein the coupling oxide of the coupling capacitor is formed only in the trench. A base station apparatus holds a corresponding table between subscriber station IDs and subscriber group numbers and designates broadcast data received from a subscriber station device such that a subscriber station device belonging to the same group as that of a subscriber station device of a transmission source as a destination to forward the broadcast data to a wireless area. to one or several hydrolyses and to one or several antioxidants which are selected from ubiquinones, carotinoides and antioxidative vitamins. The preferred values are compared to a program description file that list program attribute values for a program available for viewing. The apparatus includes a reference clock generator which generates a reference clock, and a data recovering unit which detects an edge of received data and recovers the data using a time difference between a reference point of the reference clock and the detected edge. The first surface includes a generally circular center portion and an annular portion surrounding the generally circular center portion.