Patent ID: 7995074

Claim:
An information presentation method comprising: recording external data acquired via an input device during display of presentation information on a display device; calculating a feature amount from the external data; calculating an importance level by integrating the feature amount for sections of a display period of the presentation information; generating a plurality of first headline information items for parts of the presentation information corresponding to sections of the display period having an importance level which exceeds a predetermined threshold; presenting the first headline information items on the display device; accepting a selection of one of the first headline information items, the selection being made during display of the presentation information using the input device; searching for previous display contents of the presentation information in response to the selection; generating a copy of the previous display contents; displaying the copy of the previous display contents on the display device; generating a second headline information item for the copy of the previous display contents; associating the second headline information item with the selected first headline information item in real time; and displaying, on the display device in real time during display of the presentation information, the selected first headline information item and the associated second headline information item aligned at different time positions along a time axis.