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.

Date of Patent:
Dec. 25, 2012

Filed:

Dec. 02, 2009
Applicants:

Jae-min Lee, Suwon-si, KR;

Pil-soon Choi, Anyang-si, KR;

Chan-yeul Kwon, Yongin-si, KR;

Ji-seong OH, Seongnam-si, KR;

Jae-hwa Kim, Suwon-si, KR;

Inventors:

Jae-min Lee, Suwon-si, KR;

Pil-soon Choi, Anyang-si, KR;

Chan-yeul Kwon, Yongin-si, KR;

Ji-seong Oh, Seongnam-si, KR;

Jae-hwa Kim, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/00 (2006.01); H04L 12/28 (2006.01); H04J 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a method of changing a communication link between source devices and sink devices. The method includes in a first downlink period, broadcasting an uplink period allocation message to the sink devices and passive source devices by an active source device, which establishes a communication link with a primary sink device from among the sink devices; during a first uplink period, broadcasting by a primary passive source device a link set message for establishing a communication link with the primary sink device to all the source devices in the network; during a second downlink period, relaying the link set message to all the sink devices in the network, wherein the link set message is relayed by the active source device; and during a second uplink period, establishing a communication link between the primary sink device and the primary passive source device by the primary sink device.


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