Method and device for transmitting data in wireless power transmission system

Patent metadata

Field	Value
Publication number	US-11764623-B2
Application number	US-202318153091-A
Country	US
Kind code	B2
Filing date	Jan 11, 2023
Priority date	Oct 23, 2018
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver.

First claim

What is claimed is:

1. A wireless power receiver comprising:
a power pickup to receive, from a wireless power transmitter, wireless power; and
a communicator/controller configured to control the wireless power,
wherein the wireless power receiver is configured to:
receive, from the wireless power transmitter, a digital ping;
transmit, to the wireless power transmitter, a control error packet; and
transmit, to the wireless power transmitter, a data packet within a control error interval after transmitting the control error packet,
wherein the control error interval is variable within a range, and
wherein a size of the data packet is varied based on the control error interval.

2. The wireless power receiver of claim 1 , wherein the data packet is an auxiliary data transport (ADT) data packet.

3. A wireless power transmitter comprising:
a power converter configured to transmit, to a wireless power receiver, wireless power; and
a communicator/controller configured to control the wireless power,
wherein the wireless power transmitter is configured to:
transmit, to the wireless power receiver, a digital ping;
receive, from the wireless power receiver, a control error packet; and
transmit, to the wireless power receiver, a data packet within a control error interval after receiving the control error packet,
wherein the control error interval is variable within a range, and
wherein a size of the data packet is varied based on the control error interval.

4. The wireless power transmitter of claim 3 , wherein the data packet is an auxiliary data transport (ADT) data packet.

Assignees

• Lg Electronics Inc

Inventors

• Youn Jinho
• Kwon Taewook
• Kim Jaeyeol
• Kim Hyoungseok
• Son Dohyeon

Classifications

• H04B5/266

  One coil at each side, e.g. with primary and secondary coils · CPC title

• H04B5/45

  Transponders · CPC title

• H04B5/263

  Multiple coils at either side · CPC title

• H02J50/40 Primary

  using two or more transmitting or receiving devices (H02J50/50 takes precedence) · CPC title

• H02J50/80 Primary

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title