Patent ID: 6525715
Filing Date: 2003-02-25
Classification: G06F

Abstract:
A portable information acquisition device that displays and stores acquired information, comprising a plurality of operation buttons that, upon being operated, each carries out a designated function from a plurality of different functions,wherein similar operation buttons carry out a similar kind of function from said plurality of different functions, the similar operation buttons being respectively provided on a left side and a right side of the portable information acquisition device, and said similar operation buttons carry out said similar kind of function no matter which of the similar operation buttons is operated, wherein at least two of said plurality of operation buttons that carry out different functions are arranged adjacent to one another so as to be operated by a same finger, a pressure-application surface of one operation button of said at least two operation buttons has a different size with respect to a pressure-application surface of another of said at least two operation buttons, and a pressure-application surface of one operation button of said at least two operation buttons is different with respect to a pressure-application surface of another of said at least two operation buttons, such that one button is operational when at least two operation buttons are pressed by the finger due to a difference in pressure applied by the finger.