Techniques and technologies are described herein for motion parallax three-dimensional imaging. The CTI environment includes a plurality of CTI servers configured to execute CTI applications. The device also includes a dedicated card reader for accessing information in the card and in the professional card. One of the electrodes is an electrode having high reflectance and the other is a translucent electrode. Further, when the on-duties of the first and second switching elements MOSFET Q1 and Q2 constituting an inverter circuit are made almost similar, the timings of application of the power to both ends of a lamp 144 can be made similar, so that the life span of the lamp can be improved. In addition, if an individual other than the player is photographed, the face of the individual is recognized by a recognizer, and determination is made by the detector as to whether the face is moving, and the player is identified by the determination of the sensor.