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| Reflector for multiple source lighting fixture |
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| Two-dimensional object recognition using chain codes, histogram normalization and trellis algorithm |
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| Image processing method |
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| Mark detecting method and apparatus |
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| Optical character recognition system and method |
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Incremental ideographic character input method
| Details |
Inventors: Wang, Chung-Ning; Platt, John C.; Matic, Nada P.;
Assignee: Synaptics, Inc. (San Jose, CA)
Primary Examiner: Couso; Jose L.
Assistant Examiner: Do; Anh Hong
Attorney, Agent or Firm: D'Alessandro & Ritchie
A method for incremental recognition of ideographic handwriting comprises in order the steps of: (1) entering in a natural stroke order at least one stroke of an ideographic character from a computer entry tablet; (2) providing the at least one stroke to an incremental character recognizer, which produces a hypothesis list of at least one candidate character; (3) displaying a hypothesis list of candidate characters containing the at least one stroke; (4) selecting a correct character from among the candidate characters on the hypothesis list if it a correct character appears thereon; (5) entering in natural stroke order at least one additional stroke of the ideographic character from the computer entry tablet if no candidate character is a correct character; (6) providing the additional stroke(s) to the incremental character recognizer, which produces an updated hypothesis list; (7) displaying the updated hypothesis list of candidate characters containing every stroke; (8) selecting a correct character from among the candidate characters on the updated hypothesis list if it a correct character appears thereon; and (9) repeating steps (5) through (8) until a correct character is selected from the updated hypothesis list. |
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DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT Those of ordinary skill in the art will realize that the following description of the present invention is illustrative only and not in any way limiting.
Other embodiments of the invention will readily suggest themselves to such skilled persons.
In the specification and claims herein, the phrase "natural stroke order" is used.
When used in the specification and claims herein, this phrase shall mean the order in which the strokes of an ideographic character are normally written by people to whom the language is native.
In the specification and claims herein, the word "pen" is used.
When used in the specification and claims herein, this word shall mean a position designating device that is sensed by the input tablet or touchpad.
For a standard graphics tablet, this is a special stylus, while for a standard capacitive touchpad, this is a finger.
In the specification and claims herein, the phrase "statistical pattern classifier" is used.
When used in the specification and claims herein, this phrase shall mean an apparatus that classifies input patterns into one of a plurality of classes, the parameters and/or structure of such a classifier being determined from the statistics of the input patterns.
Examples of statistical pattern classifiers include neural networks, radial basis functions, classification and regression trees, parametric Bayesian classifiers, nearest neighbor classifiers, local parametric models, mixtures of experts, and polynomial classifiers.
A statistical pattern classifier can also consist of a plurality of statistical pattern classifiers whose outputs are combined using a combination algorithm.
Other examples of statistical pattern classifiers are obvious to those skilled in the art of pattern recognition.
Referring first to FIG.
1, a block diagram illustrates an apparatus 10 for performing the ideographic character input method of the present invention.
A user will interact with a computer 12 using a tablet or touchpad 14
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Image Analysis 
