6. An apparatus for providing contents about conversation, comprising: a voice information collecting unit configured to collect voice information from conversation between a user and another person; a keyword creating control unit configured to create search keywords by using the collected voice information; and a contents providing control unit configured to search contents by using the created search keywords, and provide the searched contents; wherein the keyword creating control unit includes a morpheme extracting unit configured to extract morphemes from the collected voice information; wherein the keyword creating control unit further includes a subject word extracting unit configured to extract subject words relating to the conversation subject between the user and the person from the morphemes extracted by the morpheme extracting unit, based on Ontology; wherein the keyword creating control unit further includes a subject word mapping unit configured to map the subject words extracted by the subject word extracting unit into representative words corresponding to the meanings of the subject words; and wherein the keyword creating control unit further includes a search keyword creating unit configured to select a point word from the mapped words and create search keywords for contents by using the selected point word, in consideration of at least one of the relationship between the mapped words in the subject words mapped as the representative words by the subject word mapping unit and the frequency in use of the subject words.
7. The apparatus of claim 6 , wherein the voice information collecting unit includes: a voice information input unit configured to receive voice information from the conversation between the user and the person; and an EPD detecting unit configured to detect the end point of the start of the utterance to find out sections of a sentence unit from the input voice information.