Patents Represented by Attorney, Agent or Law Firm Warner, Murabito & Hao LLP
  • Patent number: 6707942
    Abstract: A method and system utilizing both (x, y) coordinate (“spatial”) stroke data and associated pressure information for improved handwriting recognition. The method and system can also be applied to all types of handwriting-based data entry applications and also to user authentication. The digitizer pad used in the computer system gives both spatial information and associated pressure data when a stroke is being drawn thereon, e.g., by a stylus. Pressure information can be used to differentiate between different character sets, e.g., upper case and lower case characters for certain alphabetic characters. The spatial stroke data then identifies the particular character. The pressure information can also be used to adjust any display attribute, such as character font size, font selection, color, italic, bold, underline, shadow, language, etc. The associated pressure information can also be used for recognizing a signature. In this case, a user is allowed to sign a name on the digitizer pad.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 16, 2004
    Assignee: Palm Source, Inc.
    Inventors: Michael Cortopassi, Edward Endejan