A content distribution system, a content distribution method and a terminal device are capable of effectively preventing disadvantages of users who formally bought content. The clock recovery circuit is operable to determine a time difference between rising and falling edges in the data output and their nominal reference points, and to determine respective clock reference points for the rising and falling edges from the time difference between the rising and falling edges. In response to the feature compliance information being sent, the mobile device receives, via the radio, configuration information which is derived based on the feature compliance information and location information of the mobile device. When an electron beam from the instrument is directed onto the hologram, phase dislocations may be imprinted onto the electron beam when electrons are diffracted from these holograms.