Patent ID: 6260051
Filing Date: 2001-07-10
Classification: G06F

Abstract:
A recording medium for recording information of a text in which each of a plurality of special characters of the same character type is intermittently arranged in a plurality of general characters classified into a plurality of character types, comprising:a first character chain recording region for recording all general two-character chains detected from a registration character string of the text, each general two-character chain including a fore general character and a rear general character arranged just after the fore general character in the registration character string, and the rear general character of a first general two-character chain placed just before a second general two-character chain agreeing with the fore general character of the second general two-character chain;a second character chain recording region for recording all special character chains detected from the registration character string of the text, each special character chain including a fore general character, at least one special character and a rear general character arranged in that order in the registration character string, the rear general character of one special character chain placed just before one general two-character chain recorded in the first character chain recording region agreeing with the fore general character of the general two-character chain, the fore general character of one special character chain placed just after one general two-character chain recorded in the first character chain recording region agreeing with the rear general character of the general two-character chain, and the rear general character of a first special character chain placed just before a second special character chain agreeing with the fore general character of the second special character chain;a first occurrence frequency recording region for recording a pair of occurrence frequencies of the fore and rear general characters of each general two-character chain recorded in the first character chain recording region as a general occurrence frequency set, the occurrence frequency of one general character of a particular type placed in a particular position of the registration character string denoting the number of general characters of the same particular type existing in an area between a starting position of the registration character string and the particular position of the registration character string; anda second occurrence frequency recording region for recording a pair of occurrence frequencies of the fore and rear general characters of each special character chain recorded in the second character chain recording region as a special occurrence frequency set.