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. 16, 2019
Filed:
May. 23, 2014
Koninklijke Philips N.v., Eindhoven, NL;
Andries Van Wageningen, Wijlre, NL;
Klaas Jacob Lulofs, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A power transmitter () is arranged to transfer power to a power receiver () via a wireless inductive power transfer signal transmitted from a transmit coil () to a power receiver (). A first communication unit () communicates a message to the power receiver () on a first communication link A second communication unit () receives data from the power receiver () on a separate second communication link having a longer range. The power receiver () comprises a third communication unit () which receives the first message. A response generator () generates a response message to the message and a fourth communication unit () transmits the response message to the power transmitter () over the second communication link. The power transmitter () determines an expected response message to the message and a power controller () controls the power level of the power transfer signal dependent on whether a message is received on the second communication link corresponding to the expected response message.