Methods for measuring the resistance of multiple memory elements are disclosed. This serving volume of soup is automatically pumped and heated to serving temperature and served in a suitable container like a cup or a bowl. Then, according to the height information, a second optical spectrum of the dispersion light with respect to the lower dispersion characteristic is adjusted to focus onto the object so that an imaging sensing device is capable of sensing the object light with respect to the lower dispersion characteristic, and thereby obtaining a clear and focusing image corresponding to the surface of the object. The ultrasonic energy transducer may be either a piezoelectric transducer or a surface acoustic wave device. The label may be affixed in a prominent location on the product. The mobile station remains in variable fast page mode until the expiration of a second inactivity timer or at the reception of a transmission opportunity and subsequent data transfer to or from the mobile station.