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:
Sep. 23, 2025
Filed:
Feb. 24, 2023
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Gang Zou, Lund, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
Power is wirelessly transferred by means of radiative coupling from a wireless power transmitter, WPTx, () to a wireless power receiver, WPRx, (). The WPTx () obtains () a set of conversion efficiency/input power relationships () by, for each one of a plurality of different waveform types (), obtaining for said each one of the different waveform types (), a relationship () between input signal power at the WPRx () and efficiency of radiofrequency-to-direct current, RF-to-DC, conversion of the input signal power by the WPRx (). The WPTx () obtains () a prediction that indicates at what received signal power level a received transmission of power from the WPTx () will be at the WPRx () and uses () the prediction of received signal power at the WPRx () and the set of conversion efficiency/input power relationships () to identify which one or more of the different waveform types () satisfies a predetermined selection criterion and selects one of the one or moreidentified waveform types (). The WPTx () transmits a wireless power transfer signal () having the selected waveform type ().