Handwriting recognition by character template
US5303312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Sep 8, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for entry and recognition of elements from a set of symbols, involving a template of line segments displayed on an electronic writing surface. A stylus is applied to the electronic writing surface so as to trace a desired symbol. A computing arrangement is used to "snap" the strokes made by the stylus onto the corresponding template line segments. Upon completion of a symbol, a code is made to represent the line segments and this code is used to reference entries in a data structure to identify the appropriate corresponding computer code. If there is no match, the code for the line segments and a corresponding set of computer codes can be added to the table. This method takes advantage of natural handwriting skills and can be used for a variety of symbol sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.