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:
Jul. 21, 2009
Filed:
Jan. 26, 2005
Yu-jin Lim, Seoul, KR;
Myung-jong Lee, New York, NY (US);
Xu-hui HU, New York, NY (US);
Yong Liu, New York, NY (US);
Chun-hui Zhu, New York, NY (US);
Yu-jin Lim, Seoul, KR;
Myung-jong Lee, New York, NY (US);
Xu-hui Hu, New York, NY (US);
Yong Liu, New York, NY (US);
Chun-hui Zhu, New York, NY (US);
Samsung Electronics Co., Ltd., Suwon, KR;
City University of New York, New York, NY (US);
Abstract
A method to manage nodes in a ZigBee network. In a ZigBee network including a plurality of nodes, a multicast group is generated including at least two nodes among the plurality of the nodes. A multicast group coordinator (GC) which manages the multicast group is set among the nodes forming the multicast group. The multicast group includes the GC, a multicast group member (GM) requesting to join the multicast group, and/or a multicast router (MR) which links GMs to each other or links the GC and the GC. Accordingly, since the GC manages the multicast group, the load is decreased and the packet data transmission rate is enhanced.