Abstract: A method for sharing notes of an electronic book (E-book) is illustrated. The method includes steps of: comparing an identification information of a note file with a book information of the electronic book for determining whether the note file corresponds to the electronic book; receiving and transferring the note file to an electronic reader displaying the electronic book when the note file corresponds to the electronic book; stacking and displaying at least one note layer included in the note file above an electronic page of electronic book displayed on a user interface of the electronic reader, wherein the note layer includes an auxiliary annotation associated with content of the electronic page and the note layer is independent of the electronic page. Therefore, reader may read the E-book and review related annotations on the user interface at the same time, and share the note file independently to other readers.

Abstract: A method for sharing notes of an electronic book (E-book) is illustrated. The method includes steps of: comparing an identification information of a note file with a book information of the electronic book for determining whether the note file corresponds to the electronic book; receiving and transferring the note file to an electronic reader displaying the electronic book when the note file corresponds to the electronic book; stacking and displaying at least one note layer included in the note file above an electronic page of electronic book displayed on a user interface of the electronic reader, wherein the note layer includes an auxiliary annotation associated with content of the electronic page and the note layer is independent of the electronic page. Therefore, reader may read the E-book and review related annotations on the user interface at the same time, and share the note file independently to other readers.

Abstract: The invention provides a conference presentation system consisting of a portable presentation controller and a main body. The portable presentation controller can be connected to or disconnected from the main body. Since the portable presentation controller itself has a wireless communication function, the conference presentation system of the invention can provide a complex multi-function system having a conference system, a presentation controller, a mobile microphone, a loudspeaker, a music station and so on.