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:
Oct. 13, 2009
Filed:
Jun. 07, 2005
Song-rae Cho, Gyeonggi-Do, KR;
Song-Rae Cho, Gyeonggi-Do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention is related to synchronizing status information of an IMPS client in a wireless communication system. A server, which manages status information using version information, compares status information of contacts stored in association with version information received from a client to current status information. The server transmits changed status information to the corresponding client. Preferably, the server stores the current status information in association with new version information and informs the client about the new version information. The server stores at least two of the latest version information and respective status information. Accordingly, when a status information response message is lost in its transmission and the server receives a request for the status information from the client, the changed status information can be obtained.