Abstract: According to an embodiment, a circuit in a semiconductor memory device sets threshold voltages of a plurality of memory cells such that two first distributions are formed in a first section on a lowest voltage side in 2N sections. After that, the circuit sets threshold voltages of the plurality of memory cells such that 2(1+M) second distributions are separately formed two by two. The circuit then sets 2N third distributions for the 2N sections.

Abstract: The present invention is directed to a contents display system that arranges an image corresponding to contents in accordance with predetermined attribute information. The contents display system is provided with a contents arrangement means that arranges a contents image corresponding to contents that do not meet a predetermined limitation condition at a position where a viewing recognition of at least part of the contents corresponding image is not obstructed by a contents image corresponding to contents that meet a predetermined limitation condition.

Abstract: A thumbnail creating section creates a thumbnail of a specified object to be read. A linear information computing section computes an internal coordinate used as linear information from attribute information on each content. An order-of-priority determining section determines the order of priority of each content. A thumbnail line-forming section forms a line of thumbnails according to the scale specified by the user. A superposition thumbnail nondisplay section does not display a thumbnail having the lower order of priority than that of the other of the superposed thumbnails.

Abstract: A character input device for inputting a character by extracting and recognizing a character from an image of a document photographed by a photographing device includes the photographing device. The device stores a recognition result of the extracted and recognized character and reliability indicative of sureness of recognition. Character recognition results of images obtained by repeatedly photographing a whole or part of the document are compared in order to input the character based on a character recognition result whose reliability is highest. A character input method includes adding reliability indicative of sureness of recognition to a recognition result of the character, comparing character recognition results of images obtained by repeatedly photographing the whole or part of the document, and selecting a character recognition result whose reliability is highest.

Abstract: A character input device including a data processing device which is provided with a character extraction device for extracting an image of a character portion from an image photographed by a photographing device, a character recognition device for recognizing a character from the image of the character portion and making a character recognition result with its reliability added into character recognition data, and a recognition data synthesizing device for detecting and connecting overlap portions in the character recognition data obtained from a plurality of images of the same document, as well as selecting character recognition data whose reliability is high with respect to the overlap portions to synthesize the plurality of the character recognition data into one synthetic recognition data; a recognition data storage device for storing synthetic recognition data; and a display device for displaying a photographed image and a character recognition result.