This disclosure relates to methods and systems for queuing traffic in packet-switched networks. One of the indentors has a pressure responsive element for providing a signal indicative of the pressure exerted on the contact by the indentor. The system calculates a target cost for each candidate n-phone for a target frame using a phonetic distance, coarticulation parameter, and speech rate. A voltage adjustment is made to a digital-to-analog converter of at least one of the VGAs in order to correlate the video-out voltages being provided by the VGAs. The display form change unit changes the display form so that the information to be displayed on the screen rotates by a predetermined rotation angle based on the inclination of the facial image detected by the facial image detection unit. Finally, the exemplary device comprises an electromagnetic drive unit disposed between the outside fiber bundle and the inside fiber bundle.