Patent ID: 8125452
Filing Date: 2012-02-28
Classification: B42D,G06F

Abstract:
1. An electronic book cover comprising: a board for use in binding a hook block having a plurality of writing sheets, the board having a face, a back, four side edges and at least one void to accommodate an active electronic device installed therein: the electronic device including a rigid mount fixed onto the board about the void and having a visible display through the void; an elastic skin for covering the face and a part of the board except the void, the skin having a keypad of key areas marked with various characters and symbols to be typed into the electronic device for processing preprogrammed functions; and a layered switch circuit mounted between the elastic skin and board, wherein the layered switch circuit has a first dielectric film with rows and columns of checkered conductive sections facing inwardly of the book cover, a second dielectric film has a pattern of disconnected electric contacts at locations facing the conductive sections and superimposing the key areas, and a perforated planar spacer for normally isolating the first and second dielectric films but yielding to typing depressions for locally making electrical contacts at the second film by the first film and the second dielectric film also having at its opposite face a circuit pattern of electric bus communicating with the electric contacts by conductive through-holes; and further comprising a bottom sheet of substantially the same size of the board for covering the back of the board as well as the elastic skin folds therein.