Patent ID: 7614072

Claim:
A method of serving multimedia data on demand, comprising: continuously transmitting, at a multimedia data server device, the multimedia data from the beginning to the end via a first static channel at a first static channel transmission point; transmitting, at the multimedia data server, a portion of the multimedia data from the beginning via a first to d th dynamic channel at a first to d th dynamic channel transmission point, wherein d is a natural number not less than 1; reusing, at the multimedia data server, the k th dynamic channel as another dynamic channel after releasing the k th dynamic channel to be available after Tk from the k th dynamic channel transmission point, wherein the Tk is not less than an elapsed time from the first static channel transmission point to the k th dynamic channel transmission point, wherein k is greater than 1 and less than d; and continuously transmitting, at the multimedia data server, the multimedia data from the beginning to the end via a second static channel at a second static channel transmission point, wherein each of the first to the d th dynamic channels among plural channels is available at each dynamic channel transmission point, and wherein the k th dynamic channel transmission point is located at any point between the first static channel transmission point and the second static channel transmission point and becomes closer to the second static channel transmission point as k increases.