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:
Apr. 14, 2015
Filed:
Jun. 07, 2012
Yong Hae Kim, Daejeon, KR;
Seung Youl Kang, Daejeon, KR;
Sang Hoon Cheon, Daejeon, KR;
Myung Lae Lee, Daejeon, KR;
Taehyoung Zyung, Daejeon, KR;
Yong Hae Kim, Daejeon, KR;
Seung Youl Kang, Daejeon, KR;
Sang Hoon Cheon, Daejeon, KR;
Myung Lae Lee, Daejeon, KR;
Taehyoung Zyung, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A power transmitter includes a signal processor that externally obtains a reception power state signal depending on variation of a distance between transmission and reception coil units, a modulation controller configured to a modulation frequency for selecting a frequency band having maximum power transmission performance, based on the reception power state signal, a power signal generator that generates a power signal, and a modulator that modulates the power signal in response to the modulation frequency, the reception coil unit being configured to transmit the modulated signal. A power receiver includes a reception coil unit that receives a power signal, a power generator that generates power by receiving the power signal from the reception coil unit, and a signal generator that generates a reception power state signal depending on the generated power level and transmits the latter signal to a transmission coil unit corresponding to the reception coil unit.