IP Library › Granted Patent US 12684635
Granted Patent B2
US 12684635 · App. 18/969,528 · Granted Jul 14, 2026

Power receiving apparatus, power transmission apparatus, control method, and non-transitory computer-readable storage medium

Inventor: Takahiro Shichino (Tokyo, JP)
Assignee: CANON KABUSHIKI KAISHA
H04W76/14H02J50/10H02J50/80H04W4/80H04W76/10
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Quick Facts
Patent No.
US 12684635
App. No.
18/969,528
Granted
Jul 14, 2026
Kind
B2
Abstract

A power receiving apparatus, which has a first communication function and a second communication function, controls the first communication function to receive a first signal including information representing whether a power transmission apparatus can execute control communication using a second method, controls, based on the information representing that the power transmission apparatus can execute the control communication using the second method, the first communication function to transmit, to the power transmission apparatus, a second signal to request identification information of the power transmission apparatus for the communication of the second method and receive the identification information from the power transmission apparatus, and determines which one of the first communication function and a second communication function should be used for the control communication, based on the first signal and whether the identification information is received.

Claims (16)

1 . A power receiving apparatus, comprising:

a power receiving unit configured to wirelessly receive power from a power transmission apparatus; and

a communication unit configured to communicate with the power transmission apparatus,

wherein the communication unit transmits identification information of the power receiving apparatus to the power transmission apparatus,

wherein, in a case where the communication unit receives, at a first frequency and from the power transmission apparatus, a first packet indicating that communication using a second frequency different from the first frequency is available, the communication unit communicates with the power transmission apparatus at the second frequency, and

wherein the communication unit transmits, in a case where the communication unit receives a NAK response from the power transmission apparatus for a second packet transmitted at the first frequency, a packet indicating a request to stop power transfer.

2 . The power receiving apparatus according to claim 1 , wherein the first packet is a packet indicating a capability of the power transmission apparatus.

3 . The power receiving apparatus according to claim 1 , wherein the second packet is a packet for requesting communication at the second frequency.

4 . A communication method executed by a power receiving apparatus that wirelessly receives power from a power transmission apparatus, the communication method comprising:

transmitting identification information of the power receiving apparatus to the power transmission apparatus;

in a case where the power receiving apparatus receives, at a first frequency and from the power transmission apparatus, a first packet indicating that communication using a second frequency different from the first frequency is available, communicating with the power transmission apparatus at the second frequency; and

transmitting, in a case where the power receiving apparatus receives a NAK response from the power transmission apparatus for a second packet transmitted at the first frequency, a packet indicating a request to stop power transfer.

5 . A non-transitory computer-readable storage medium that stores a program for causing a power receiving apparatus that wirelessly receives power from a power transmission apparatus to execute a communication method, the communication method comprising:

transmitting identification information of the power receiving apparatus to the power transmission apparatus:

in a case where the power receiving apparatus receives, at a first frequency and from the power transmission apparatus, a first packet indicating that communication using a second frequency different from the first frequency is available, communicating with the power transmission apparatus at the second frequency; and

transmitting, in a case where the power receiving apparatus receives a NAK response from the power transmission apparatus for a second packet transmitted at the first frequency, a packet indicating a request to stop power transfer.