Patent ID: 7743326

Claim:
An information processing device for reading an electronic book comprising: a processor; instructions stored thereon and executable by the processor for performing a method, including: (a) displaying contents information of an electronic book on an information processing device connected to a network; (b) recording the contents information onto the information processing device; (c) analyzing the recorded contents information at the information processing device to identify (i) updateable information and (ii) substantially unvarying information, the contents information including update frequency information indicative of an update frequency of each of the updateable information; (d) obtaining at the information processing device from the network an update of the updateable information identified in (c) in accordance with the update frequency specified for each of the updateable information, wherein the obtaining includes determining elapse of a time period; (e) recording the obtained update at the information processing device; (f) accessing and displaying at the information processing device a first page of the electronic book, containing the substantially unvarying information from the contents information already recorded together with the updateable information updated with the recorded contents information; and (g) then accessing and displaying at the information processing device a second page different from the first page of the electronic book, containing the substantially unvarying information from the contents information already recorded together with the updateable information updated with the recorded contents information.