Patent ID: 7725550
Filing Date: 2010-05-25
Classification: H04L

Abstract:
1. A method of filtering messages, comprising the steps of: (a) generating a conversion target letter table storing hex code information corresponding to each conversion target letter that may be used for eluding filtering and conversion letters corresponding to each of the conversion target letters; (b) comparing a hex code of a letter of a message text inputted by a user with the hex code information stored in the conversion target letter table; (c) when the hex code matches any one of the hex code information stored in the conversion target letter table, converting the letter to the corresponding conversion letter stored in the conversion target letter table; (d) repeating the steps (b) and (c) for all of letters of the message text so as to create a converted message text; and (e) when a pre-configured prohibited word or words are included in the converted message text, filtering the converted message text.