Patent ID: 7548951

Claim:
A network conference system comprising: a conference server; and a client conference terminal connected to the conference server through a network, wherein the conference server includes a data storage section and a playback control section, wherein the data storage section includes: a real-time conference data file creation section for adding a time stamp to conference data comprising voice data, image data, and control command data of a real-time conference held using a network conference system, and placing, based on the time stamp added to the conference data, the conference data to which the time stamp was added on a time series to create a real-time conference data file, wherein heading information is based on the time stamp added to the conference data; an index file creation section for creating an index file including time-of-day information and heading information associated with the time-of-day information concurrently with creation of the real-time conference data file; and a conference data edit section for reading the temporarily stored real-time conference data file after the real-time conference is over to create a minute file, wherein the playback control section, upon reception of a request for playing back the minute file from the client conference terminal, creates a heading list based on the heading information in the index file, and transmits the heading list to the client conference terminal, and wherein the playback control section, when a user of the client conference terminal specifies a specific heading, among the heading list, as the result of referencing the heading list, reads data in the minute file corresponding to the specified heading by referring to the index file, and transmits the read data to the client conference terminal.