초록 ▼

A keyboardless entry computer system includes a transparent input screen that generates positional information when contacted by a stylus, and a display screen mounted physically below the input screen such that a character that is displayed can be seen below the input screen. The system includes a

A keyboardless entry computer system includes a transparent input screen that generates positional information when contacted by a stylus, and a display screen mounted physically below the input screen such that a character that is displayed can be seen below the input screen. The system includes a computer that has been programmed to compile the positional information into Strokes, to calculate Stroke characteristics, and then compare the Stroke characteristics with those stored in a database in order to recognize the symbol drawn by the stylus. Key features of the system are: (1) transparent position sensing subsystem; (2) underlying display on which to mimic drawing of sensed positions and to show characters or symbols; (3) means to convert sensed positions first into plotted Points and then into recognized characters or symbols; and (4) means to “learn”to associate sensed input positions with a character or symbol.

대표청구항 ▼

A microprocessor-based process for recognition, translation and display of Handwritten Symbols and execution of Editing Functions and other commands comprising the steps of: (a) Creating a personalized database for each individual user of the process by having the user initially input a Handwritten

A microprocessor-based process for recognition, translation and display of Handwritten Symbols and execution of Editing Functions and other commands comprising the steps of: (a) Creating a personalized database for each individual user of the process by having the user initially input a Handwritten Symbol for each character corresponding with a Font Symbol to be displayed or Editing Function or other command to be executed; (b) Determining a unique set of Stroke characteristics to characterize each such symbol and storing it in the database; (c) Writing or drawing Handwritten Symbols on a computer screen with a stylus; (d) Digitizing each Handwritten Symbol to identify the x, y coordinates of a multiplicity of Points into Strokes defining the Handwritten Symbol; (e) Processing the digitized characteristics of each Stroke of a Handwritten Symbol to determine the predetermined characteristics of the Handwritten Symbol; (f) Each of steps (b) and (e) comprising a determination of the (i) length of the Stroke, (ii) average slope of the Stroke, (iii) the Stroke centroid\s height above base line, (iv) rate of change in slope of Stroke and (v) comparison of the location of the centroid of each Stroke with the centroid of the Handwritten Symbol; (g) Searching the data base to find a “hit,”a perfect or the closest correspondence to the characteristics of a Font Symbol; (h) Displaying the Font Symbol or performing the Editing Function or other command most closely associated with the “hit”characteristics.