Character string correction system and method using error pattern
Patent 6023536 Issued on February 8, 2000. Estimated Expiration Date: 
June 21, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 21, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re35738 Alpha content match prescan method for automatic spelling error correction Method for automatic character recognition employing a lexicon having updated character strings Pattern recognition system having inter-pattern spacing correction Image processing method and apparatus Patent #: 5315671 InventorApplicationNo. 668222 filed on 06/21/1996US Classes:382/310, Correcting alphanumeric recognition errors382/229, Context analysis or word recognition (e.g., character string)715/532DictionaryExaminersPrimary: Au, AmeliaAssistant: Prikockis, Larry J. Attorney, Agent or FirmInternational ClassG06K 009/72Foreign Application Priority Data1995-07-03 JPAbstractA character string correction system corrects a spelling error in a character string input through the keyboard, OCT, etc. An error pattern representing frequent occurrences of errors is preliminarily set and stored in the memory, etc. A processor reads an input character string character by character, and compares the read character with the error pattern. If the input character string matches an error pattern, it is assumed that an error exists. The input character is replaced with one of the alternative characters. Using the input character string or the character string corrected with an alternative character, a dictionary (TRIE table) is searched. If a corresponding word is detected in the dictionary, the word is output as one of the recognition results.Other References
Field of SearchContext analysis or word recognition (e.g., character string)Checking spelling for recognition Correcting alphanumeric recognition errors Including operator interaction EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) Ideographic characters (e.g., Japanese or Chinese) Unconstrained handwriting (e.g., cursive) On-line recognition of handwritten characters Segmenting individual characters or words | |
