Patent ID: 8676576

Claim:
An information processing system comprising: a terminal; a to-be-opened information processing apparatus connectible via a network to the terminal; and a copyright managing information processing apparatus connectible via a network to the to-be-opened information processing apparatus, wherein: the terminal comprises a transmitting unit which transmits to the to-be-opened information processing apparatus content including audio data, the content being inputted from a user; the to-be-opened information processing apparatus comprises: a content receiving unit which receives the content from the terminal connected via the network to the to-be-opened information processing apparatus, and an opening unit which opens the received content to the public on the network; and the copyright managing information processing apparatus comprises: a storage means which stores copyrighted content including audio data; a first topic unit which recognizes audio data in content opened to the public by the to-be-opened information processing apparatus; converting the audio data into text data, extracting keywords from the text data, and conducting topic processing using the keywords to create topic information; a second topic unit which recognizes audio data in content stored in the storage unit, converting the audio data into text data, extracting keywords from the text data, and conducting topic processing using the keywords to create topic information; and a similarity determining unit which compares the topic information generated by the first topic unit with that created by the second topic unit and for thereby determining presence or absence of similarity therebetween; and a replacement unit which recommends for replacement, if the similarity determining unit determines presence of similarity between the content, the content opened to the public on the network by the to-be-opened information processing apparatus by second content.