公开(公告)号：US09742501B2

公开(公告)日：2017-08-22

申请号：US14962314

申请日：2015-12-08

Applicant: INSTITUTE FOR INFORMATION INDUSTRY

Inventor： Hsiang-Chin Hsieh ,  Hung-Yu Chen ,  Chi-Wai Chow ,  Kevin Liang ,  Chung-Yen Chen ,  Chien-Hung Yeh

IPC: H04B10/00 ,  H04B10/80 ,  H04B10/516 ,  H04B10/69 ,  H04B10/114 ,  H04B10/524 ,  H04B10/112 ,  H04B10/116 ,  H04B10/54

CPC classification number: H04B10/80 ,  H04B10/1121 ,  H04B10/1129 ,  H04B10/1141 ,  H04B10/1149 ,  H04B10/116 ,  H04B10/516 ,  H04B10/524 ,  H04B10/541 ,  H04B10/69

Abstract: The present invention relates to an optical communication system and an optical transmission device. By changing the ratio between the first segment and the segment or/and the amplitude of the second segment, the digital signal is modulated and transmitted in the form of an optical signal. Then a solar panel, which is used as the receiver for the optical signal, can receive the optical signal and give directly the one or more digital signal without demodulation. Thereby, the costs of using a solar panel as the optical receiver may be reduced and the transmission rate may be enhanced.

公开(公告)号：US10075237B2

公开(公告)日：2018-09-11

申请号：US15376884

申请日：2016-12-13

Applicant: INSTITUTE FOR INFORMATION INDUSTRY

Inventor： Hsiang-Chain Hsieh ,  Chi-Wai Chow ,  Yen-Ting Chen ,  Chia-Wei Chen ,  Wei-Chung Wang

IPC: H04B10/00 ,  H04B10/116 ,  H04N5/374

CPC classification number: H04B10/116 ,  H04N5/374

Abstract: Disclosed are a visible light communication system and a visible light communication method. In this system, a signal transmitter sends a visible light signal, and a signal light receiver capture an image of the visible light signal to recover the visible light signal according to the captured image. The signal receiver includes an image capturing module, an image processing module and a signal recovery module. The method includes: capturing an image of a visible light signal; processing the captured image of the visible light signal; determining whether there is a complete packet according to the processed image; if yes, directly recovering the visible light signal according to the processed image; but if no, executing a packet recovery process according to the processed image of the visible light signal, then obtaining the complete packet and recovering the visible light signal transmitted from the signal transmitter.