A power-saving control apparatus and method capable of power-saving and prevention of decrease in the speed of accessing files of a high level of importance is suggested. An actuating member is operationally connected to the pin and causes selective movement of the pin and lock plate between a secured and unsecured orientation. The view of the three-dimensional scene is animated by applying a spatial transformation to the three-dimensional scene or the camera. The system includes a controller that accommodates the inductants by introducing an appropriate delay in the firing circuit signal to operate the air bag. A transmitter modulates a sequence of bits in a wireless communications network by selecting one coding sequence from a set of orthogonal or quasi-orthogonal coding sequences based on a current subsequence of bits of the input sequence, generating a reference waveform and a data waveform of a waveform pair for each sequence.