公开(公告)号：US11374653B2

公开(公告)日：2022-06-28

申请号：US16645147

申请日：2017-06-07

Applicant: University of Science and Technology of China

Inventor： Shangbin Li ,  Zhengyuan Xu ,  Boyang Huang

IPC: H04B10/116 ,  H05B45/20 ,  H04B10/43 ,  H04B10/50 ,  H04B10/54

Abstract: Provided is a visible light communication transceiver. A drive amplification module performs digital-to-analog conversion and amplification on a digital modulation signal to obtain a first electrical signal, and transmits the signal to a Bias Tee-like circuit. The Bias Tee-like circuit transmits the first electrical signal to a LED light source. The LED light source performs electrical-to-optical conversion on the first electrical signal to generate a first optical signal and transmits the first optical signal, and performs optical-to-electrical conversion on a received second optical signal to obtain a second electrical signal. The Bias Tee-like circuit obtains the second electrical signal from the LED light source, and transmits the second electrical signal to an adaptive amplification and equalization module. The adaptive equalization module adjusts a gain of the second electrical signal based on an optical power of the first optical signal.

公开(公告)号：US20200252128A1

公开(公告)日：2020-08-06

申请号：US16645147

申请日：2017-06-07

Applicant: University of Science and Technology of China

Inventor： Shangbin Li ,  Zhengyuan Xu ,  Boyang Huang

IPC: H04B10/116 ,  H04B10/54 ,  H04B10/43 ,  H04B10/50 ,  H05B45/20

Abstract: Provided is a visible light communication transceiver. A drive amplification module performs digital-to-analog conversion and amplification on a digital modulation signal to obtain a first electrical signal, and transmits the signal to a Bias Tee-like circuit. The Bias Tee-like circuit transmits the first electrical signal to a LED light source. The LED light source performs electrical-to-optical conversion on the first electrical signal to generate a first optical signal and transmits the first optical signal, and performs optical-to-electrical conversion on a received second optical signal to obtain a second electrical signal. The Bias Tee-like circuit obtains the second electrical signal from the LED light source, and transmits the second electrical signal to an adaptive amplification and equalization module. The adaptive equalization module adjusts a gain of the second electrical signal based on an optical power of the first optical signal.