A message string output system which can prevent users from feeling uncomfortable due to repeated input of a particular string by another user is provided. A judging unit (36) judges whether or not a message string which is input by an input unit (30) contains a specific string. An input status information...http://www.google.ca/patents/US8028028?utm_source=gb-gplus-sharePatent US8028028 - Message character string output system, control method thereof, and information storage medium
