Patent Number: 6,298,346

Title: Method and apparatus for supporting cooperative activity

Abstract: Provided are a method and apparatus for supporting a cooperative activity in which an activity is performed by cooperation among a plurality of participants, as in a television conference system. When another user attempts to participate in the cooperative activity (session), a guardian is assigned to the session and a guardian is assigned also to the user attempting to participate. Allowance or refusal of participation by the user in the session is decided based upon the access control level of the guardian corresponding to the user, a guardian tree defining the path of the guardian and the mutual relationship between the guardians.

Inventors: Kurosawa; Takahiro (Yokohama, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: G06Q 10/00 (20060101); G06F 017/30 ()

Expiration Date: 10/02/2018