An indexing method for allowing a viewer to control the mode of delivery of program material. The method comprises passing the input signal through an adaptive time domain filter to produce an output signal. The advantages of this application are demonstrated taking a four-cylinder petrol engine constructed with direct fuel injection and turbo-charging as an example. Each of the connection lines has a different length from the neighboring connection lines. The estimation part estimates the second standard deviation of the medical image data based on the first standard deviation. The locking member stop prevents the force applying member from rotating within the body when the bolt is rotated and advances the piston by threaded engagement.