Title：Downlink data transmission device and method for synchronous transmission of wireless energy and data
Country：China
Patent No.：201910233924.9
Legal Status：Authorized
Inventor：Xian Tang, Kan Peng, Songping Mai, Zhihua Wang
Assignee：Graduate School at Shenzhen, Tsinghua University; Tsinghua University
Address：Tsinghua Campus, Xili University Town, Nanshan District, Shenzhen City 518055, Guangdong Province
Filing Date：2019-03-26
Issue Date：2021-06-08
Abstract：
The invention discloses a downlink data transmission device and method for synchronous transmission of wireless energy and data. The device comprises a transmitting end and a receiving end, wherein the transmitting end uses a pulse signal which is subjected to data modulation by pulse phase modulation PPM as a transmitting signal so that the phase of the pulse signal is changed along with modulation, and the duty ratio of the pulse signal is kept unchanged, so that the modulated transmitting signal and the unmodulated original pulse signal have the same duty ratio, and the receiving end correspondingly demodulates the received signal to obtain the data. According to the downlink data transmission device and method for synchronous transmission of wireless energy and data, the influence of downlink data transmission on the energy transmission efficiency of a system can be minimized, and the modulation and demodulation circuit is easy to implement and low in cost.
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