A system and method for securing wireless communications are provided. The sleeve’s coupling receiving portions include axially extending teeth on their inner surfaces. Sequential access reduces the impact of power-supply spikes induced by memory operations, and thus facilitates improved system performance. Further, the present invention provides the information regarding the action state of the embedded program to the Java program, thereby enabling a consistent execution of the Java program on completion of the Java program start-up process. In some embodiments, the phosphor has a cerium concentration between about 4 mol % and about 8 mol %.