# US 11,121,588 B2 · System, method, and apparatus for wireless charging > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,121,588 B2 - Document ID: US11121588B2 - Status: Granted - Kind: B2 - Application number: 16/680,327 - Filed: 2019-11-11 - Published: 2020-03-12 - Granted: 2021-09-14 - Earliest claimed: 2016-12-30 - Assignees: Capital One Services, LLC - Applicants: Capital One Services, LLC - Inventors: Adam Koeppel; Tyler Locke; David Wurmfeld - Web page: https://patentgrep.com/patent/US11121588B2 ## CPC - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - G06F 9/54: Interprogram communication - G06K 19/071: {the source being a field other than an interrogation field, e.g. WLAN, cellular phone network} - G06K 19/0723: {the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs} - H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones - H02J 50/10: using inductive coupling - H04B 5/79: for data transfer in combination with power transfer - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 76/10: Connection setup - G06K 19/041: {Constructional details (G06K19/06 takes precedence)} - H04B 5/22: Capacitive coupling - H04B 5/24: Inductive coupling - H04B 5/26: using coils - 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) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Using inductive currents to wirelessly charge a device via a device connected to a power source. This inductive charging may result when a first mobile device recognizes a second mobile device via a wireless connection (e.g., Bluetooth, Bluetooth Low Energy (BLE), Near-Field Communication (NFC), or the like). An application stored on the first mobile device may recognize a second mobile device by transmitting an advertising packet when the first mobile device is connected to a power source. An advertising packet may be received by the second mobile device and the second mobile device may transmit a response to the advertising packet in order to generate a connection between the first and second mobile devices. The response may include data such as, connection strength, response time, connection preferences, and the like. Upon detection and connection, the second mobile device may be wirelessly charged by the first device via inductive charging. ## Claims ### Claim 1 A method comprising: transmitting, via a Near-Field Communications (NFC) antenna of a transaction card, an advertising packet from an electronic transaction card to a mobile device associated with an account holder of the transaction card; receiving, via the NFC antenna, a response from the mobile device including a first frequency for energy transmission and distance data; determining, with a microprocessor of the transaction card, a distance between the transaction card and the mobile device based on the distance data; determining, with the microprocessor, a second frequency for energy transmission based on the first frequency and the distance; and broadcasting, via the NFC antenna, a first signal to the mobile device at the second frequency to charge the mobile device via inductive charging. ### Claim 2 (depends on 1) The method of claim 1, wherein the response from the mobile device includes at least one of the following: connection strength, response time, or connection preferences. ### Claim 3 (depends on 1) The method of claim 1, wherein the response from the mobile device further includes an amount of energy stored on the mobile device, the method further comprising: determining, with the microprocessor, that the amount of energy stored on the mobile device is below a predefined threshold. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, via the NFC antenna, a second signal from the mobile device including a new account number associated with the account holder; activating, with the microprocessor, the new account number; and updating, with the microprocessor, a display on the transaction card to show the new account number. ### Claim 5 (depends on 1) The method of claim 1, further comprising: receiving, at a sensor of the transaction card, a security input from the account holder; and communicating, via the NFC antenna, with a merchant terminal to conduct a transaction using contactless payment technology, wherein the communicating includes sending user authentication information to authenticate the transaction in response to the security input. ### Claim 6 (depends on 1) The method of claim 1, wherein the first frequency for energy transmission and the second frequency for energy transmission are used for charging an energy storage component of the mobile device. ### Claim 7 A method comprising: determining, with a microprocessor of a mobile device, that the mobile device is connected to a power source; activating, with the microprocessor, a charging application stored on the mobile device; generating, using the microprocessor, an advertising packet for a transaction card; transmitting, via a Near-Field Communication (NFC) antenna, the advertising packet to the transaction card; receiving, via the NFC antenna, a response from the transaction card indicating that a connection is established between the mobile device and the transaction card and data to determine (1) a distance between the mobile device and the transaction card and (2) a charge level of the transaction card; broadcasting, via the NFC antenna, a first signal at a first frequency for energy transmission to the transaction card to charge the transaction card via inductive charging; determining, with the charging application, one or more charging preferences for the transaction card; altering, with the charging application, the first frequency to a second frequency for energy transmission based on the one or more charging preferences; and broadcasting, via the NFC antenna, a second signal at the second frequency to the transaction card to charge the transaction card via inductive charging. ### Claim 8 (depends on 7) The method of claim 7, wherein the one or more charging preferences include a minimum charge level at which to begin charging the transaction card, the method further comprising: determining, with the microprocessor, that the charge level of the transaction card is below the minimum charge level. ### Claim 9 (depends on 7) The method of claim 7, wherein the one or more charging preferences include one or more of: an optimal frequency for energy transmission at which to charge the transaction card, the optimal frequency based on a predefined charge minimum associated with the transaction card; a connection preference; a type of antenna to transmit and receive data; an amount of charging time; distance-frequency data for the transaction card; and override data indicating whether to override one or more default settings, the one or more default settings comprising a charging time, a frequency of transmission, an antenna usage, and charging only when the transaction card is plugged in. ### Claim 10 (depends on 9) The method of claim 9, wherein the charging application alters the optimal frequency based on the distance between the mobile device and the transaction card and the distance-frequency data. ### Claim 11 (depends on 7) The method of claim 7, wherein the one or more charging preferences include a start time and an end time, the method further comprising: determining, with the charging application, that a current time is after the start time. ### Claim 12 (depends on 7) The method of claim 7, further comprising: determining, with the charging application, that a current time is after an end time; and terminating, with the charging application, the first signal to stop inductively charging the transaction card. ### Claim 13 (depends on 7) The method of claim 7, wherein the one or more charging preferences comprise a default frequency for energy transmission of the transaction card. ### Claim 14 (depends on 7) The method of claim 7, further comprising: storing, with the charging application, the one or more charging preferences for the transaction card. ### Claim 15 (depends on 7) The method of claim 7, wherein the charging application comprises an output management component configured to filter information being carried on a particular power surge to optimize power output to the transaction card. ### Claim 16 (depends on 7) The method of claim 7, wherein the charging application comprises instructions to charge a first plurality of transaction cards associated with an authorized cardholder of the transaction card. ### Claim 17 A method for wirelessly charging a mobile device, the method comprising: receiving, at a microprocessor of a transaction card, a signal that an energy storage component of the transaction card is connected to a power source; generating, with the microprocessor, an advertising packet for the mobile device; transmitting, via a Near-Field Communications (NFC) antenna, the advertising packet to the mobile device; receiving, via the NFC antenna, a first response from the mobile device indicating that a connection is established between the transaction card and the mobile device; broadcasting, via the NFC antenna, a first signal at a first frequency for energy transmission to the mobile device to charge the mobile device via inductive charging; receiving, via the NFC antenna, a second response from the mobile device including one or more charging preferences; altering, with a charging application on the transaction card, the first frequency to a second frequency for energy transmission based on the one or more charging preferences; and broadcasting, via the NFC antenna, a second signal at the second frequency to the mobile device to charge the mobile device via inductive charging. ### Claim 18 (depends on 17) The method of claim 17, wherein: the one or more charging preferences include an optimal frequency for charging; and the charging application alters the optimal frequency based on a distance between the transaction card and the mobile device. ### Claim 19 (depends on 17) The method of claim 17, wherein the one or more charging preferences include a minimum charge level at which to begin charging the mobile device, the method further comprising: determining, with the microprocessor, that a charge level of the mobile device is below the minimum charge level. ### Claim 20 (depends on 17) The method of claim 17, wherein the power source comprises a Europay, MasterCard, and Visa (EMV) chip on the transaction card in electrical communication with a merchant terminal. ### Claim 21 (depends on 17) The method of claim 17, wherein the one or more charging preferences include an amount of charging time for the mobile device, the method further comprising: determining, with the microprocessor, that the amount of charging time has been met or exceeded; and terminating, with the charging application, the first signal to stop inductively charging the mobile device. ### Claim 22 (depends on 17) The method of claim 17, wherein the one or more charging preferences include a maximum charge level at which to stop charging the mobile device, the method further comprising: determining, with the microprocessor, that a charge level of the mobile device is equal to, or greater than, the maximum charge level; and terminating, with the charging application, the first signal to stop inductively charging the mobile device. ### Claim 23 (depends on 17) The method of claim 17, further comprising: detecting an interference of the first signal at the first frequency between the NFC antenna and the mobile device, wherein altering the first frequency to the second frequency is further based on the detected interference. ### Claim 24 (depends on 17) The method of claim 17, further comprising: storing, via the charging application, the one or more charging preferences.