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Please predict whether this patent is acceptable.PATENT ABSTRACT: A character string recognition method includes: selecting a keyword database, which corresponds to content of a character string, from a number of keyword databases, wherein the selected keyword database comprises at least one prefix keyword, comparing the content of the character string with the at least one prefix keyword, when the content of the character string corresponds to one of the at least one prefix keyword, updating the content of the character string based on a definition of the prefix keyword which corresponds to the content of the character string, and when the content of the character string does not correspond to any of the at least one prefix keyword, selectively ending the character string recognition method, and outputting the content of the character string.