In a communication system which can privately inform each applicant of an outcome of a game or an examination, a cell phone with a cell phone number is used to transmit, to a center or a promoter, personal identification information including the cell phone number and a total personal password. The organic component is a fluorine-containing poly having a good processing ability, gas permeability, mechanical properties, and chemical stability. The roller carriage engages a positioning screw, and an electric motor mounted in a sealed end cap powers the positioning screw. In one form, the controller is part of a BLDC motor system which also includes a plurality of phase drivers each having inputs for receiving respective ones of said plurality of phase control signals, and outputs adapted to couple to corresponding phases of the BLDC motor.