Sharp Kabushiki Kaisha Corporation

Yasushi Murasaki

Isamu Haneda

Toshio Isoe

Eichika Matsuda

Naoki Shiraishi

Satoru Miyamoto

Yoshiro Kihara

Toshihiro Takenaka

There is provided a scroll controller which solves a problem that in scrolling an image at coordinates specified by a pen or the like to specific coordinates (e.g., the center), it is unable in a display such as a liquid crystal display having a slow display reaction speed to grasp the state of movement when a scroll quantity (scroll speed) per unit time is fast. The scroll controller calculates a difference between prefixed coordinates and the coordinate position specified by a position specifying device and on the basis of the calculation result, controls so that not only stepwise scroll quantities are obtained, but also scroll quantities in starting and ending of the scroll are different from that in the other time of the scroll.

Scroll controller

The present invention is directed to setting the direction and the quantity of movement by a point and to execute scrolling. A reference point is set in the display screen of the display apparatus of the electric device, in advance. When a user selects a display mode of a data processing function and designates a point within the display screen through a coordinate inputting apparatus, the device calculates a positional deviation of a designate point from the reference point as a deviation of a coordinate value, switches a display image so that an image component which is displayed at a position corresponding to the designate position is located at a position corresponding to the reference position, and scrolls the image. Further, when a point is designated successively a plurality of times as a designation point, an image which is sequentially switched is scrolled the plurality of times at predetermined time intervals. Still further, when designating is successively executed for a plurality of times, the predetermined time is shortened in accordance with the number of designating. When a display image includes a character, an approximate value of a deviation which denotes a positional deviation is found among integer-multiples of the width of a rectangular region which includes the character.

Data processing apparatus for scrolling a display image by designating a

An input/display apparatus for handwritten characters is capable of quickly inputting handwritten characters, freely editing characters inputted, and storing a lot of handwritten characters with a limited storing capacity. On a display panel provided with a display surface, the orthogonal coordinates of which are preset, a touch panel provided. An input surface of the touch panel, the orthogonal coordinates of which are preset, is disposed in such a way that the display surface and the input surface overlap each other. When the input surface is indicated with an input pen, the indicated coordinate point is outputted. At the time of handwriting input, when the input surface in the input/display area for characters is continuously indicated, coordinate points on the display surface corresponding to the plurality of indicated coordinate points are displayed. After the handwriting input is over, stroke data consisting of coordinate points extracted on the basis of predetermined references from among a plurality of coordinate points outputted from the touch panel at the time of handwriting input are prepared. The stroke data are displayed by being converted to a size corresponding to the width of the line set in the area after the display position of the cursor.

Input and display apparatus for handwritten characters

Growing community of inventors

Soraku-gun, Japan

Yasushi Murasaki