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A method and apparatus for recognition of handwritten symbols

A technology of symbol recognition and handwriting, applied in the field of digital systems, can solve problems such as error-prone, misrecognized symbols, and unnaturalness

Active Publication Date: 2009-07-15
SYNAPTICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technique is also unnatural as it requires the user to wait for a timeout after entering each symbol
Also, this technique is error-prone because the user may not enter the strokes fast enough, causing a timeout to occur before the user has finished entering the symbol, resulting in misrecognized symbols
Also, the use of external split signals, such as pressing a button to indicate the end of a symbol, is also error-prone and inflexible

Method used

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  • A method and apparatus for recognition of handwritten symbols
  • A method and apparatus for recognition of handwritten symbols
  • A method and apparatus for recognition of handwritten symbols

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Embodiment Construction

[0027] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with various embodiments, it will be understood that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims. Moreover, in the following detailed description of the invention, numerous specific details are set forth in order to provide a thorough understanding of the invention for the reader. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to obscure aspects of the invent...

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PUM

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Abstract

A method and apparatus for recognition of handwritten symbols. A plurality of strokes is received at a common input region of an electronic device, wherein the plurality of strokes in combination defines a plurality of symbols. Sequential combinations of the plurality of strokes are analyzed with a plurality of symbol recognition engines to determine at least one possible symbol of the plurality of symbols defined by the plurality of strokes, wherein at least one of the plurality of symbol recognition engines is configured to identify symbols comprising a particular number of strokes.

Description

technical field [0001] The present invention relates generally to the field of digital systems. In particular it relates to methods and devices for the recognition of handwritten symbols. Background technique [0002] Text input based on handwriting recognition allows users to enter symbols on-line using a writing instrument (eg, pen, stylus, or finger) and an electronic input device (eg, tablet, digitizer, or touchpad). A typical handwriting recognition input device captures the X, Y and time coordinates of the trajectory of the writing implement. The handwriting can then be automatically converted into digital text. Handwriting recognition software uses the input stroke sequence to perform the conversion of writing to text (eg, it recognizes the expected sequence of symbols). [0003] Typically, a user can enter symbols by writing in a natural order in a restricted manner (eg, closed box mode or using a timeout setting) or in a non-restricted manner (eg, continuous prin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06V30/224
CPCG06K9/00422G06V30/36G06V30/224
Inventor 伊-勋·E·程纳达·P·马蒂克小雷蒙德·A·特伦特
Owner SYNAPTICS INC