US Patent Application 18355139. ENHANCED COMMUNICATIONS FOR WIRELESS POWER TRANSFER simplified abstract

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ENHANCED COMMUNICATIONS FOR WIRELESS POWER TRANSFER

Organization Name

Apple Inc.


Inventor(s)

Sriram Narayanan of Los Gatos CA (US)

Xing Zhou of San Jose CA (US)

Alireza Safaee of Cupertino CA (US)

Zaid A Abukhalaf of Sunnyvale CA (US)

ENHANCED COMMUNICATIONS FOR WIRELESS POWER TRANSFER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18355139 titled 'ENHANCED COMMUNICATIONS FOR WIRELESS POWER TRANSFER

Simplified Explanation

The abstract describes a wireless power transmitter that can receive and analyze a characterizing signal from a wireless power receiver to determine the characteristics of the communication channel between them.

  • The wireless power transmitter can receive a characterizing signal from the wireless power receiver.
  • It can compute at least two parameters of a model that describes the communication channel based on the received signal.
  • These parameters can include the time constant and damping value of the channel.
  • The transmitter can then calculate equalizing filter taps based on these parameters.
  • The computed equalizing filter can be applied to subsequent signals received by the transmitter to improve the quality of the communication.
  • The transmitter can request the receiver to transmit a characterizing signal, and the receiver responds by sending the signal.


Original Abstract Submitted

A wireless power transmitter can receive the results of a characterizing signal transmitted by the wireless power receiver, compute at least two parameters of a model characterizing an in-band communications channel based on the received results of the characterizing signal transmitted by the wireless power receiver, compute a plurality of equalizing filter taps from the at least two parameters, and apply the computed equalizing filter to subsequent signals received by the wireless power transmitter via the in-band communications channel. A first parameter can correspond to a time constant of the channel, and a second parameter can correspond to a damping value of the communications channel. The wireless power transmitter can transmit to a wireless power receiver a request to transmit a characterizing signal through the in-band communication channel, wherein the characterizing signal transmitted by the wireless power receiver is sent in response to the transmitted request.

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