Character recognition apparatus
Patent 4542526 Issued on September 17, 1985. Estimated Expiration Date: 
October 20, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 20, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3111646 3133266 3875331 Character recognition equipment Character recognition unit Character reading system Patent #: 4180800 InventorsAssigneeApplicationNo. 06/543817 filed on 10/20/1983US Classes:382/187, On-line recognition of handwritten characters382/298, To change the scale or size of an image382/314, Sensing mechanism in stylus382/315Sensing mechanism in platenExaminersPrimary: Boudreau, Leo H.Attorney, Agent or FirmInternational ClassesG06K 9/22 (20060101)G06K 9/46 (20060101) Foreign Application Priority Data1982-10-21 JPAbstractAn apparatus for recognizing a character (including an alpha-numeric character, mark or other character) written using a stylus applied to a tablet which stylus and tablet include an arrangement for providing an indication of position of the stylus with respect to a surface of the tablet. The character recognition apparatus determines the length and gradient (slope) of line segments of strokes drawn by a user which strokes combine to form characters. After determining length and gradient of a line segment, there is assigned to the line segment a distinctive code. A particular character is determined by examining the order of codes which define particular combinations of strokes. Recognition of characters is carried out in substantially real time. | |
