Title:
SIGNAL PHASE ALIGNMENT AND TRANSMISSION METHOD FOR POWER INCREASE IN WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/102811
Kind Code:
A1
Abstract:
A signal phase alignment and transmission method for a power increase in a wireless power transmission system is disclosed. A filter-bank-based transmitter estimates a reception signal and calculates a target signal, and can simply calculate an interference signal from the difference between the estimated reception signal and the target signal. Only the phase of a corresponding filter coefficient constituting the target signal is updated in order to simply align the phase of the target signal with the phase of the interference signal on the basis of the phase of the calculated interference signal.
Inventors:
PARK HYUNCHEOL (KR)
WOO CHANGHYUK (KR)
AN HONGSUN (KR)
WOO CHANGHYUK (KR)
AN HONGSUN (KR)
Application Number:
PCT/KR2020/015874
Publication Date:
May 19, 2022
Filing Date:
November 12, 2020
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
H04B1/04; H02J50/20; H04L25/02
Foreign References:
| US20180131554A1 | 2018-05-10 | |||
| US20190074707A1 | 2019-03-07 | |||
| KR20170128055A | 2017-11-22 |
Other References:
KU MENG-LIN; HAN YI; LAI HUNG-QUOC; CHEN YAN; LIU K. J. RAY: "Power Waveforming: Wireless Power Transfer Beyond Time Reversal", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE, USA, vol. 64, no. 22, 15 November 2016 (2016-11-15), USA, pages 5819 - 5834, XP011623772, ISSN: 1053-587X, DOI: 10.1109/TSP.2016.2601283
ALTINEL DOGAY; KURT GUNES KARABULUT: "Frequency Switching for Simultaneous Wireless Information and Power Transfer", 2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL), IEEE, 18 September 2016 (2016-09-18), pages 1 - 5, XP033078850, DOI: 10.1109/VTCFall.2016.7881020
ALTINEL DOGAY; KURT GUNES KARABULUT: "Frequency Switching for Simultaneous Wireless Information and Power Transfer", 2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL), IEEE, 18 September 2016 (2016-09-18), pages 1 - 5, XP033078850, DOI: 10.1109/VTCFall.2016.7881020
Attorney, Agent or Firm:
YANG, Sungbo (KR)
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