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:
Nov. 26, 2013
Filed:
Jul. 21, 2008
Dong-jae Shin, Seoul, KR;
Dae-kwang Jung, Suwon-si, KR;
Jeong-seok Choi, Yongin-si, KR;
Hong-seok Shin, Suwon-si, KR;
Kyung-woo Lee, Yongin-si, KR;
Sung-bum Park, Suwon-si, KR;
Seong Hoon Hyun, Sung Nam, KR;
Dong-Jae Shin, Seoul, KR;
Dae-Kwang Jung, Suwon-si, KR;
Jeong-Seok Choi, Yongin-si, KR;
Hong-Seok Shin, Suwon-si, KR;
Kyung-Woo Lee, Yongin-si, KR;
Sung-Bum Park, Suwon-si, KR;
Yoo-Jeong Hyun, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Abstract
A method and apparatus for arranging communication links in visible light communication increases the user visibility of the system. The method includes the steps of: (a) synchronizing, by a visible light communication (VLC) exchange identification (XID) frame, (b) transmission timing of a primary device and a secondary device in an allocated time slot, and securing time so as to allow the primary device and the secondary device to perform an operation required for transmitting data; (c) transmitting an XID command frame from the primary to the secondary device and (d) transmitting an XID response frame from the secondary receiving the XID command frame to the primary; and (e) filling remaining space of the allocated time slot with a visibility field so as to increase visibility of the remaining space of the allocated time slot after receiving the XID command frame or the XID response frame.