Methods and systems are provided to detect user satisfaction based on user interaction patterns and properties. A dispersion compensating fiber mode converter for a higher order fiber includes a single mode fiber; a higher order mode dispersion compensating fiber; and a fused and extended portion which has been formed by fusing and extending the single mode fiber and the higher order mode fiber. A first data alignment circuit aligns and outputs the data from the first data selector. Consequently, any unnecessary power consumption of the circuit generating the local oscillation signal of semiconductor device 2 can be reduced. A Web server sends the request received at a communication controller in a server side to an extended module, and controls the controller.