In the Internet, the digital format of most contents has led to its increased piracy because of the ease of copying and sharing the digital contents. Moreover, the advent of new technologies such as ubiquitous computing seems to cause problems of piracy even more than before. Therefore, we guess it?s going to be a more critical issue to control and manage rights of digital contents. In this paper, we propose a framework of U-DRM to control and manage rights of digital contents on the basis of the ubiquitous computing. The framework consists of two methods based on digital mediums and digital contents. And with a step ahead, we discuss ways for the application of usage data collected from the proposed framework.