A storage medium connecting device which enables electrical connection of a card-type storage medium with a substrate via a socket is provided. In various examples, adaptive power control can adjust the power output to amplifiers based upon the load of a communication signal being amplified. The spur gear pair includes a first spur gear fixedly sleeved on the moving arm, and a second spur gear rotatably connected with the rotation member and meshing with the first spur gear. In particular, conductive impurities can also be implanted into the lower portion of the wide trench region which constitutes the head of the T-shaped isolation layer and is extended to both sides from the upper end of the narrow trench region by controlling the depth of the wide trench region in an ion implantation step for forming the sourcedrain region. 60 with the volume resistivity value in the range from 10 to 5000 \u03a9cm and the average particle diameter in the range from 5 to 300 nm, and the thickness of the antimony oxide coating layer is in the range from 0. Wireless location systems can be handset-based or network-based.