The present invention relates to a terbium borate-based yellow phosphor, a preparation method thereof, and a white semiconductor light emitting device incorporating the same. An end of the first portion has a well containing a lubricant with a side wall having orifice for emitting lubricant and an open end sealed by a movable plunger. A second motion detector is arranged to modify the first motion signals to generate corrected motion signals in response to the relationship of a pixel being processed to a change of motion of one or more of the image in the vertical direction. The ATM communications device includes an optical link, a physical layer device, and an SAR devices, carries out processing for communication of real-time data such as a video signal between the ATM network and the real-time signal bus, and carries out processing for communication of non real-time data such as computer information between the ATM network and the CPU bus.