The present invention relates to a content unity control method for using signal system to control the unities of contents that are used through such physical support as wired or wireless internet, Mobile, PDA, DMB, PSP, etc. Particularly the present invention is intended to help the user to minimize the physical, time and space limits in using the content after going through the established authentication procedures and secure a satisfactory content service from the physical support that the user wants at any time and any place, and at the same time provide an identical and unified interface so that the unities of contents may be searched with ease, the user administration may be carried out easily, and an efficient approach to get hold of the registered data and statistics together with their utilization may be accomplished.

 
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