A power control device of single base power is provided for an optical readwrite module of an optical disk drive. The base includes a first end and an opposite second end. 5 to 5 g10 min, and a melting point of 150 degrees C. These and other arrangements of the present concept may allow cooperative or competitive game play between the first and second player. A plurality of output connector modules is operatively connected to the at least one output queue, the output connector modules supplying respective output data streams. In an N-element array antenna, a designated null beam antenna pattern is obtained by processing a 2-element antenna weight vector forming a null in a sequentially selected one of M designated null directions and a -element antenna weight vector forming a beam in a designated beam direction to produce an antenna weight vector for the N-element array antenna.