An electroluminescnet polymer is represented by the following formula : . The TSI process is surrounded by a multiplexingdemultiplexing circuit for converting a plurality of PCM highways into a single input serial data stream. Accordingly, even when the frequency characteristic of the ultrasonic motor varies due to wear of the ultrasonic motor and mechanical components coupled thereto, a stable drive can be maintained over a long time. Each are aligned substantially in the flow direction. A timestamp is used to represent when an object is released to determine which version of an object is the newest version in a family. A controller couples to the stabilizer and the light sensor for receiving the first work voltage and the control signal, and outputs a drive signal.