发明名称 |
Wireless light communication system and wireless light communication method using the same |
摘要 |
A wireless light communication system and method using a plurality of light transmitting units driven by a same alternating current (AC) power, and a light receiving unit for receiving optical signals transmitted by the plurality of light transmitting units are provided. The wireless light communication method includes setting a channel for each of the plurality of light transmitting units such that light transmitting units having an overlapping area that is reachable by optical signals use different channels, detecting zero crossing of the AC power, synchronizing channels by using the detected zero crossing, and transmitting an optical signal through the set channel by using the plurality of light transmitting units, and receiving the optical signal transmitted by each of the plurality of light transmitting units by using the light receiving unit, and analyzing information included in the received optical signal. |
申请公布号 |
US9054799(B2) |
申请公布日期 |
2015.06.09 |
申请号 |
US201213614155 |
申请日期 |
2012.09.13 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
Park Seong-man;Choi Young-jun |
分类号 |
H04B10/11;H04J14/06;H04B10/116 |
主分类号 |
H04B10/11 |
代理机构 |
Staas & Halsey LLP |
代理人 |
Staas & Halsey LLP |
主权项 |
1. A wireless light communication method using a plurality of light transmitting units driven by a same alternating current (AC) power, and a light receiving unit for receiving optical signals transmitted by the plurality of light transmitting units, the wireless light communication method comprising:
determining a plurality of light transmitting units have optical signals with an overlapping area; setting a channel for each of the plurality of light transmitting units such that light transmitting units having the overlapping area that is reachable by the optical signals use different channels; detecting zero crossing of the AC power; synchronizing channels by using the detected zero crossing, and transmitting an optical signal through the set channel by using the plurality of light transmitting units; and receiving the optical signal transmitted by each of the plurality of light transmitting units by using the light receiving unit, and analyzing information included in the received optical signal, wherein the channel is in a time domain, and different time slots are assigned to each channel. |
地址 |
Suwon-Si KR |