Patent ID: 7770112

Claim:
A data conversion method, comprising: reading out contents data to be published, which includes text data, and identifying a character string whose output as text data should be avoided, from the read contents data; converting the identified character string into substitution data other than said text data so as to maintain content of said identified character string; generating publication contents data to maintain publication content of said read contents data by using data other than said identified character string in said read contents data and said substitution data; judging whether a transmission source of a contents data request is registered in a publication refusal list or is not registered in a publication approval list, upon receiving said contents data request; upon detecting that said transmission source of said contents data request is registered in said publication refusal list or is not registered in said publication approval list, transmitting said publication contents data to said transmission source of said contents data request; and upon detecting that said transmission source of said contents data request is not registered in said publication refusal list or is registered in said publication approval list, transmitting said contents data to said transmission source of said contents data request.