# US 10,873,223 B2 · Electronic apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,223 B2 - Document ID: US10873223B2 - Status: Granted - Kind: B2 - Application number: 16/294,013 - Filed: 2019-03-06 - Published: 2020-02-06 - Granted: 2020-12-22 - Earliest claimed: 2018-08-03 - Assignees: Kabushiki Kaisha Toshiba - Applicants: Kabushiki Kaisha Toshiba - Inventors: Kentaro Taniguchi - Web page: https://patentgrep.com/patent/US10873223B2 ## CPC - H02J 50/20: using microwaves or radio frequency waves - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - G06F 1/1683: {for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling} - H01Q 21/29: Combinations of different interacting antenna units for giving a desired directional characteristic (H01Q25/00 takes precedence) - H02J 50/23: characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas - H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence) - H02J 50/90: involving detection or optimisation of position, e.g. alignment - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract According to one embodiment, an electronic apparatus includes a power transmitter, a receiver and control circuitry. The power transmitter is configured to transmit power to a first electronic apparatus by an electromagnetic waves. The receiver is configured to receive a communication signal wirelessly from a second electronic apparatus. The control circuitry is configured to control power transmitted by the power transmitter, based on at least detection sensitivity of the receiver. ## Claims ### Claim 1 An electronic apparatus comprising: a power transmitter configured to transmit power to a first electronic apparatus by an electromagnetic wave; a receiver configured to receive a communication signal wirelessly from a second electronic apparatus; and control circuitry configured to control power transmitted by the power transmitter, based on at least a detection sensitivity of the receiver, wherein: the receiver is configured to receive the communication signal via a first antenna; and the control circuitry is configured to set the detection sensitivity of the receiver, based on a gain of the first antenna. ### Claim 2 (depends on 1) The electronic apparatus of claim 1, wherein: the first antenna comprises an array antenna; and the control circuitry is configured to: estimate a direction from which the communication signal arrives, and control the array antenna to have directivity in the direction. ### Claim 3 (depends on 2) The electronic apparatus of claim 2, wherein the control circuitry is configured to control the array antenna to have directivity that varies from time division to time division. ### Claim 4 (depends on 1) The electronic apparatus of claim 1, wherein the control circuitry is configured to control the power transmitted by the power transmitter, based on acceptance of interference with the second electronic apparatus from the electronic apparatus. ### Claim 5 (depends on 1) The electronic apparatus of claim 1, wherein the communication signal is a signal that conforms to one of a wireless LAN and DSRC. ### Claim 6 An electronic apparatus comprising: a power transmitter configured to transmit power to a first electronic apparatus by an electromagnetic wave; a receiver configured to receive a communication signal wirelessly from a second electronic apparatus; and control circuitry configured to control power transmitted by the power transmitter, based on at least a detection sensitivity of the receiver, wherein the control circuitry is configured to: set communication characteristics of the second electronic apparatus based on the communication signal, and control the power transmitted by the power transmitter based on the communication characteristics. ### Claim 7 An electronic apparatus comprising: a power transmitter configured to transmit power to a first electronic apparatus by an electromagnetic wave; a receiver configured to receive a communication signal wirelessly from a second electronic apparatus; and control circuitry configured to control power transmitted by the power transmitter, based on at least a detection sensitivity of the receiver, wherein: the receiver is further configured to receive a signal wirelessly from a third electronic apparatus; and the control circuitry is configured to control the power transmitted by the power transmitter, based on a detection sensitivity of the second electronic apparatus and a detection sensitivity of the third electronic apparatus. ### Claim 8 (depends on 7) The electronic apparatus of claim 7, wherein the control circuitry is configured to select a smaller one of a transmission power based on the detection sensitivity of the second electronic apparatus and a transmission power based on the detection sensitivity of the third electronic apparatus, as the power transmitted by the power transmitter. ### Claim 9 A method comprising: transmitting power to a first electronic apparatus by an electromagnetic wave; receiving, by communication circuitry, a communication signal wirelessly from a second electronic apparatus; and controlling the power based on at least a detection sensitivity of the communication circuitry, wherein the receiving comprises receiving the communication signal via a first antenna; and wherein the controlling comprises setting the detection sensitivity of the communication circuitry, based on a gain of the first antenna. ### Claim 10 (depends on 9) The method of claim 9, wherein: the first antenna comprises an array antenna, and the method further comprises estimating a direction from which the communication signal arrives and controlling the array antenna to have directivity in the estimated direction. ### Claim 11 (depends on 10) The method of claim 10, further comprising controlling the array antenna to have directivity that varies from time division to time division. ### Claim 12 (depends on 9) The method of claim 9, further comprising controlling the power transmitted by the power transmitter, based on acceptance of interference with the second electronic apparatus from the power transmitter. ### Claim 13 (depends on 9) The method of claim 9, wherein the communication signal is a signal that conforms to one of a wireless LAN and DSRC. ### Claim 14 A method comprising: transmitting power to a first electronic apparatus by an electromagnetic wave; receiving, by communication circuitry, a communication signal wirelessly from a second electronic apparatus; controlling the power based on at least a detection sensitivity of the communication circuitry; setting communication characteristics of the second electronic apparatus based on the communication signal; and controlling the power transmitted by the power transmitter based on the communication characteristics. ### Claim 15 A method comprising: transmitting power to a first electronic apparatus by an electromagnetic wave; receiving, by communication circuitry, a communication signal wirelessly from a second electronic apparatus; controlling the power based on at least a detection sensitivity of the communication circuitry; receiving, by the communication circuitry, a signal wirelessly from a third electronic apparatus; and controlling the power transmitted by the power transmitter, based on a detection sensitivity of the second electronic apparatus and a detection sensitivity of the third electronic apparatus. ### Claim 16 (depends on 15) The method of claim 15, further comprising selecting a smaller one of a transmission power based on the detection sensitivity of the second electronic apparatus and a transmission power based on the detection sensitivity of the third electronic apparatus, as the power transmitted by the power transmitter.