The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2006
Filed:
Jun. 14, 2002
MI Young Huh, Daejeon, KR;
Wook Hyun, Daejeon, KR;
Shin Gak Kang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed herein is a method for synchronizing user registration information in an inter-domain. In this synchronization method, the current position information of a random user is registered through a register message when the user moves from one user agent to another. An up-sync message is transmitted upstream of a tree structure and a down-sync message is transmitted downstream of the tree structure when user registration information is created or changed. The synchronization of the user registration information is carried out in upper and lower session initiation protocol servers/registrars having received the up-sync and down-sync messages, respectively.