Sanyo Electric Co., Ltd.

Tottori Sanyo Electric Ltd.

Hiroshi Horii

Masayoshi Okamoto

Takatoshi Yoshikawa

Kazuhiro Ieda

Shinsuke Moriai

Junji Tanaka

Hiromitsu Kawajiri

Makoto Kanagawa

Takashi Baba

In a coordinates detecting apparatus including a tablet for detecting X and Y coordinates and a correcting circuit for correcting the X and Y coordinates detected from the tablet, a parameter used for correcting the X coordinate and a parameter used for correcting the Y coordinate are adjustable independent from each other. More specifically, time constant of a CR filter circuit for the X coordinate and time constant of the CR filter circuit for the Y coordinate can be adjusted independent from each other. Further, numbers of A/D conversion, threshold values, number of samples and so on for the X and Y coordinates can be set independent from each other. As a result, in the coordinates detecting apparatus, noises in X and Y coordinates can be optimally removed, allowing detection of X and Y coordinates with high accuracy.

Coordinates detecting apparatus for independently correcting coordinates

An apparatus for recognizing characters read by a reading unit. A circumscribing rectangle of a read character is formed, and the degree of narrowness of that circumscribing rectangle is acquired. Characters having a degree of narrowness that is equal to or greater than a predetermined value are selected and blank areas are added to the circumscribing rectangle to yield a character area with a corrected degree of narrowness. The character is normalized by converting the character area to a specified size, and is recognized based on the normalized character. It is therefore possible to normalize even characters significantly elongated vertically or horizontally for easier recognition and to group their character patterns.

Method and apparatus for pre-recognition character processing

Based on handwriting coordinate data input by a pen at an arbitrary position on a screen, a handwriting display portion displays a handwriting at the writing position. A recognition portion recognizes a written character or an editing symbol. A handwriting erase portion erases the handwriting, and returns the screen to a state before writing. A recognition result output portion supplies the recognition result to an application program having a keyboard focus in the same form as that of keyboard input. As a result, a character or the like can be directly written at an arbitrary position on a window displayed by the application program or on the screen, and input or editing can be carried out.

Handwritten character input device allowing input of handwritten

On a liquid crystal display panel of the handwritten character input system, a data input frame is displayed, and in the data input frame, a plurality of character writing frames are displayed. Each of the character writing frames defines an area to which a handwritten character can be input. In a frame number changing mode, when the size of the data input frame is changed, the number of character writing frames is changed in accordance with the change size. In a frame size changing mode, when the size of the data input frame is changed, the size of the character writing frame is changed in accordance with the changed size. Further, when the size of the character writing frame is changed, the character font to be displayed is also changed in accordance with the changed size.

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Gifu, Japan

Hiroshi Horii