# US 11,121,584 B2 · Power receiver, power transmitter, power transceiver, and power transmission system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,121,584 B2 - Document ID: US11121584B2 - Status: Granted - Kind: B2 - Application number: 16/341,859 - Filed: 2017-10-02 - Published: 2019-08-01 - Granted: 2021-09-14 - Earliest claimed: 2016-10-14 - Assignees: KYOCERA Corporation - Applicants: KYOCERA Corporation - Inventors: Tomoaki Miwa; Atsuhiko Kanda - Web page: https://patentgrep.com/patent/US11121584B2 ## CPC - H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence) - H02J 50/20: using microwaves or radio frequency waves - H02J 50/50: using additional energy repeaters between transmitting devices and receiving devices - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract A power receiver includes a power reception interface that receives wireless power and a controller that transmits an emergency power transmission request for the wireless power during an emergency. ## Claims ### Claim 1 A power receiver comprising: a power reception interface configured to receive wireless power; and a controller configured to, acquire information from an external apparatus related to an occurrence of a disaster outside of the power receiver, determine an emergency based on a property of the power receiver, the property including the information related to the occurrence of the disaster, and transmit an emergency power transmission request for the wireless power to power the power receiver during the emergency. ### Claim 2 (depends on 1) The power receiver of claim 1, wherein the property of the power receiver includes the power receiver not being able to receive the wireless power from a power transmitter configured to transmit wireless power to the power receiver. ### Claim 3 (depends on 1) The power receiver of claim 1, wherein the controller is configured to transmit information related to priority of power reception by the power receiver during the emergency. ### Claim 4 A power transceiver comprising: a power reception interface configured to receive wireless power; and a power transmission interface configured to transmit wireless power; wherein the power transmission interface is configured to transmit wireless power to a power receiver, and the wireless power is transmitted to power the power receiver during an emergency, the emergency being determined by the power receiver based on a property of the power receiver, the property including information acquired by the power receiver from an external apparatus and related to an occurrence of a disaster outside of the power receiver. ### Claim 5 (depends on 4) The power transceiver of claim 4, further comprising: a memory configured to store identification information of the power receiver; wherein the power transmission interface is configured to transmit the wireless power during the emergency to a power receiver corresponding to the identification information stored in the memory. ### Claim 6 (depends on 4) The power transceiver of claim 4, wherein the power transmission interface is configured to be set to a first setting or a second setting; transmit wireless power to the power receiver during the emergency when the power transmission interface is set to the first setting; and not transmit wireless power to the power receiver during the emergency when the power transmission interface is set to the second setting. ### Claim 7 (depends on 4) The power transceiver of claim 4, further comprising: a communication interface configured to acquire information related to priority of power reception from the power receiver; wherein the power transmission interface is configured to transmit wireless power to the power receiver on the basis of the acquired information related to priority. ### Claim 8 (depends on 4) The power transceiver of claim 4, wherein the property of the power receiver includes the power receiver not being able to receive the wireless power from a power transmitter configured to transmit wireless power to the power receiver. ### Claim 9 A power transceiver comprising: a power reception interface configured to receive wireless power; a power transmission interface configured to transmit wireless power; and a controller configured to control transmission and reception of wireless power; wherein the controller is configured to transmit a power transmission request for wireless power during an emergency, the emergency being determined by a power receiver based on a property of the power receiver, the property including information acquired by the power receiver from an external apparatus and related to an occurrence of a disaster outside of the power receiver; wherein the power reception interface is configured to receive wireless power transmitted in response to the power transmission request; and wherein the power transmission interface is configured to transmit wireless power to the power receiver to power the power receiver during the emergency. ### Claim 10 (depends on 9) The power transceiver of claim 9, wherein the controller is further configured to transmit the power transmission request for wireless power in response to receipt of the emergency power transmission request, for wireless power, transmitted by the power receiver during the emergency. ### Claim 11 (depends on 10) The power transceiver of claim 10, wherein the controller is further configured to transmit the power transmission request when the power receiver is within a power transmission range of wireless power. ### Claim 12 (depends on 9) The power transceiver of claim 9, wherein the power transmission interface is further configured to transmit wireless power to another power transceiver different from the power transceiver when the power transceiver receives a power transmission request for wireless power from the other power transceiver different from the power transceiver. ### Claim 13 A power receiver comprising: a power reception interface configured to receive wireless power; and a controller configured to, during normal circumstances, transmit a power transmission request for wireless power and to receive, in the power reception interface, wireless power transmitted from a power transmitter in response to the power transmission request; acquire information from an external apparatus and related to an occurrence of a disaster outside of the power receiver; determine an emergency based on a property of the power receiver, the property including the information related to the occurrence of the disaster; transmit an emergency power transmission request for wireless power to power the power receiver during the emergency; and receive wireless power transmitted from a power transceiver to another power transceiver different from the power transceiver in response to the emergency power transmission request, the controller receiving the wireless power from the another power transceiver in the power reception interface. ### Claim 14 (depends on 13) The power receiver of claim 13, wherein the property of the power receiver includes the power receiver not being able to receive the wireless power from the power transmitter configured to transmit wireless power to the power receiver. ### Claim 15 A power transmitter comprising: a power transmission interface configured to transmit wireless power; a memory configured to store information related to a power receiver; and a controller configured to, transmit wireless power from the power transmission interface in response to a power transmission request received from a power receiver for which the information is stored in the memory during normal circumstances; and transmit wireless power from the power transmission interface in response to a power transmission request to transmit power to power a power receiver during an emergency from which an emergency power transmission request is received, the emergency being determined by the power receiver from which the emergency power transmission request is received and based on a property of the power receiver from which the emergency power transmission request is received, the property including information acquired by the power receiver from an external apparatus and related to an occurrence of a disaster outside of the power receiver, the emergency power transmission request being received from a power receiver for which the information is stored in the memory or a power receiver for which the information is not stored in the memory during the emergency. ### Claim 16 (depends on 15) The power transmitter of claim 15, wherein in response to an authentication request received from the power receiver during normal circumstances, the controller is configured to determine whether the information related to the power receiver is stored in the memory. ### Claim 17 (depends on 16) The power transmitter of claim 16, wherein the controller is configured to transmit to the power receiver the determination whether the information related to the power received is stored in the memory. ### Claim 18 A power receiver comprising: a power reception interface configured to receive wireless power; and a controller configured to, receive wireless power from a power transmitter in the power reception interface during normal circumstances, information related to the power receiver being registered in the power transmitter; acquire information from an external apparatus related to an occurrence of a disaster outside of the power receiver; determine an emergency based on a property of the power receiver, the property including the information related to the occurrence of the disaster; and receive wireless power to power the power receiver during the emergency, in the power reception interface, from the power transmitter in which the information related to the power receiver is registered or a power transmitter in which the information related to the power receiver is not registered. ### Claim 19 (depends on 18) The power receiver of claim 18, wherein the controller is further configured to transmit an emergency power transmission request for the wireless power to power the power receiver during the emergency. ### Claim 20 (depends on 18) The power receiver of claim 18, wherein the property of the power receiver includes the power receiver not being able to receive the wireless power from the power transmitter configured to transmit wireless power to the power receiver.