The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2021
Filed:
Aug. 22, 2017
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Dong Zo Kim, Gyeonggi-do, KR;
Kyoung Won Kim, Seoul, KR;
Han Seok Park, Seoul, KR;
Se Ho Park, Gyeonggi-do, KR;
Yu Su Kim, Gyeonggi-do, KR;
Keum Su Song, Seoul, KR;
Ju Hyang Lee, Gyeonggi-do, KR;
Hyung Koo Chung, Gyeonggi-do, KR;
Kyung Min Park, Gyeonggi-do, KR;
Yong Sang Yun, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A power transmitting unit is provided. The power transmitting unit includes a signal generator configured to generate a signal of a first frequency band for wireless charging, a power generation circuit configured to generate a modulation signal for modulating the signal of the first frequency band generated by the signal generator, and amplify a transmit power of the signal of the first frequency band based on voltage supplied from the outside of the power transmitting unit, a power transmission circuit configured to transmit the amplified transmit power to a power receiving unit via a first antenna, a second antenna configured to receive information about a charging state from the power receiving unit through a second frequency band, and a control circuit configured to control a duty and frequency of the modulation signal based on the charging state.