Patent ID: 6628267
Filing Date: 2003-09-30
Classification: G06F

Abstract:
A flexibly interfaceable portable computing device, comprising:a processor; a display coupled to said processor and a keyboard coupled to said processor, wherein said display and said keyboard provide a first user interface to said processor; a recording unit separate from said display, said recording unit including a working surface thereon; said working surface being superimposable with a removable markable surface; a stylus allowing user marking on said markable surface when said working surface is superimposed with said markable surface, said stylus providing a stroke signal and a stroke mark, said stroke signal conveying to said recording unit a section of information, said stroke mark conveying to said markable surface a visible indication of said section of information; and said recording unit selectively coupled to said processor, wherein said recording unit, said markable surface, said stylus and said display provide a second user interface to said processor, and said display presents a user viewable dynamic image even when said markable surface is opaque.