System and methods for spacing, storing and recognizing electronic representations of handwriting, printing and drawings

• US 7,203,903 B1
• Filed: 04/05/2000
• Issued: 04/10/2007
• Est. Priority Date: 05/20/1993
• Status: Expired due to Fees

• Current Assignee: Microsoft Corporation
• Original Assignee: Microsoft Corporation
• Inventors: Thompson, Michael P., Kusmer, Steven R., Altman, Dan, Rouiller, Michael W., Stikeleather, Gregory, Evans, Michele M.
• Primary Examiner(s): Hong; Stephen
• Assistant Examiner(s): DESAI, RACHNA SINGH
• Application Number:
  US09/543,651
• Time in Patent Office: 2,561 Days
• Field of Search: 715/541, 382/187, 382/311
• US Class Current: 715/203
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting
• CPC Class Codes: G06V 30/10 Character recognition
• CPC Class Codes: G06V 30/262 using context analysis, e.g. lexical, syntactic or semantic context
• CPC Class Codes: G06V 30/40 Document-oriented image-based pattern recognition

Abstract

A system for spacing, storing and recognizing electronic representations of handwriting and printing comprises a central processing unit that couples with a display device, an input device, and a memory. The memory includes means for spacing ink stroke representations, means for recognizing outline elements, means for performing deferred recognition, means for highlighting drawing areas and means for storing and displaying ink stroke representations. These means operate together to provide a pen-based or graphics oriented computer system with improved performance and added functionality for manipulating the space between ink stroke representations. The preferred embodiment of the present invention comprises several novel methods that provide this functionality including: a method for managing space between ink stroke representations, a method for displaying drawing elements in a visually distinct manner, a method for recognizing bullets and dashes, a method for storing ink stroke representations, a method for displaying and printing ink stroke representations, and a method for performing deferred character or word recognition.

Claims

1. In a computer system having a first array and a second array, a method for receiving, processing and outputting ink stroke representations in order to enhance the ink stroke representations, the method comprising of:

receiving a plurality of points representing an ink stroke and storing the plurality of points in the first array;

retrieving a first point of the stroke and storing the first point in a second array;

generating a first new point a first predetermined distance from a point in the first array on the line between the point in the first array and a point before the point in the first array;

generating a second new point a second predetermined distance from the point in the first array on the line between the point in the first array and a point after the point in the first array;

storing the first new point and the second new point in the second array;

retrieving a last point of the stroke and storing the last point in a second array; and

outputting the points stored in the second array as a representation of the ink stroke.

2. The method of claim 1, wherein the steps of generating the first new point, generating the second new point and storing are repeated for each point in the first array between the first point and the last point of the first array.

3. The method of claim 1, wherein the first predetermined distance is 25% of the distance between the point in the first array and the point before the point in the first array.

4. The method of claim 1, wherein the second predetermined distance is 25% of the distance between the point in the first array and the point after the point in the first array.