Patent ID: 8606785

Claim:
An activity recording apparatus for recording activities of an avatar in a virtual world by means of a computer, comprising: block dividing means for dividing the virtual world into a plurality of blocks each provided with a unique identifier (ID), said block dividing means is means for performing the block division such that each of the blocks can overlap all the adjacent blocks on the left, right, front, back, top and bottom sides partially by a predetermined distance and it is determined that the avatar enters a block at a time point when the avatar enters the block and moves the predetermined distance inside from the boundary of the block; movement history recording means for recording a movement history in a storage area of the computer, the movement history including an entered block ID for each block into which an avatar acting in the virtual world enters, and a time point at which the avatar enters the block; movement history deleting means for deleting the movement history between the first and last blocks of a plurality of blocks which the avatar enters if the plurality of blocks are continuous, in a straight line and in one direction; and activity record database (DB) recording means for recording, as an activity dataset in an activity record DB, an event content, the movement history and a repetition count of an event when the event occurs with an activity of the avatar; wherein the activity record DB recording means is means for recording an activity dataset together with the repetition count of the activity and, when there is an already existing activity dataset having the same entered block ID and event content as a new activity dataset, the activity record DB recording means increments by one and records the repetition count of the already existing activity dataset.