Abstract: An information processing apparatus detects the sampling rate of a coordinate input device, and standardizes the writing data which is input from the coordinate input device based on the detected sampling rate. The standardized writing data is further used for signature verification or for handwritten character recognition. The information processing apparatus provides precise signature verification or handwritten character recognition even if signatures or handwritten characters for handwritten character recognition are input using digitizers having different processing rates.

Abstract: A signature processing method determines, when displaying an input signature on a display unit, whether a predetermined condition is satisfied. When it is determined that the predetermined condition is satisfied, the signature on the display unit is displayed in a manner that it is difficult for others to discern the signature.

Abstract: An entered signature is compared with registered signature data to calculate an evaluation value, and when the evaluation value for the entered signature is within the allowable range for successful authentication, it is determined whether aging has occurred. When aging is determined to have occurred, a warning message is displayed to urge re-registration of the signature. According to such a configuration, it is possible, when a change in signature is caused by aging, to avoid circumstances in which authentication becomes suddenly impossible.

Abstract: An information processing apparatus detects the sampling rate of a coordinate input device, and standardizes the writing data which is input from the coordinate input device based on the detected sampling rate. The standardized writing data is further used for signature verification or for handwritten character recognition. The information processing apparatus provides precise signature verification or handwritten character recognition even if signatures or handwritten characters for handwritten character recognition are input using digitizers having different processing rates.

Abstract: An information processing apparatus detects the sampling rate of a coordinate input device, and standardizes the writing data which is input from the coordinate input device based on the detected sampling rate. The standardized writing data is further used for signature verification or for handwritten character recognition. The information processing apparatus provides precise signature verification or handwritten character recognition even if signatures or handwritten characters for handwritten character recognition are input using digitizers having different processing rates.

Abstract: Stroke information from pen-down to pen-up being one unit is grouped automatically so that editing thereafter can be performed efficiently. Grouping of stroke information is determined in accordance with a predetermined rule of grouping each time stroke information is input or with timing indicated by a user. Strokes input within a predetermined time interval and stroke information input at a position within a predetermined distance interval are assumed to be the same group, and in the editing thereafter, a collective pointing and processing on a plurality of grouped strokes becomes possible.

Abstract: An information processing apparatus detects the sampling rate of a coordinate input device, and standardizes the writing data which is input from the coordinate input device based on the detected sampling rate. The standardized writing data is further used for signature verification or for handwritten character recognition. The information processing apparatus provides precise signature verification or handwritten character recognition even if signatures or handwritten characters for handwritten character recognition are input using digitizers having different processing rates.

Abstract: A signature processing method determines, when displaying an input signature on a display unit, whether a predetermined condition is satisfied. When it is determined that the predetermined condition is satisfied, the signature on the display unit is displayed in a manner that it is difficult for others to discern the signature.

Abstract: An entered signature is compared with registered signature data to calculate an evaluation value, and when the evaluation value for the entered signature is within the allowable range for successful authentication, it is determined whether aging has occurred. When aging is determined to have occurred, a warning message is displayed to urge re-registration of the signature. According to such a configuration, it is possible, when a change in signature is caused by aging, to avoid circumstances in which authentication becomes suddenly impossible.

Abstract: Stroke information from pen-down to pen-up being one unit is grouped automatically so that editing thereafter can be performed efficiently. Grouping of stroke information is determined in accordance with a predetermined rule of grouping each time stroke information is input or with timing indicated by a user. Strokes input within a predetermined time interval and stroke information input at a position within a predetermined distance interval are assumed to be the same group, and in the editing thereafter, a collective pointing and processing on a plurality of grouped strokes becomes possible.