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:
Jan. 30, 2018
Filed:
Apr. 14, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
A wireless power transmitter apparatus is provided with: a power transmitter circuit having input terminals to which a DC power is inputted and output terminals from which the power transmitter circuit outputs the AC power and which supply the AC power to a power transmitting coil; a DC monitor circuit that monitors the DC power at the input terminals of the power transmitter circuit, and outputs a DC monitor signal indicating a change in a characteristic associated with the DC power; and a demodulator circuit that detects a load-modulated signal based on the DC monitor signal, demodulates the load-modulated signal, and outputs a first demodulated signal. The load-modulated signal is transmitted from the wireless power receiver apparatus to the wireless power transmitter apparatus by changing power consumption of the wireless power receiver apparatus.