# US 12,216,839 B2 · Pairing method and pairing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,839 B2 - Document ID: US12216839B2 - Status: Granted - Kind: B2 - Application number: 18/273,741 - Filed: 2022-01-14 - Published: 2024-05-30 - Granted: 2025-02-04 - Earliest claimed: 2021-03-15 - Assignees: Honor Device Co., Ltd. - Applicants: Honor Device Co., Ltd. - Inventors: Beihang Zhang - Web page: https://patentgrep.com/patent/US12216839B2 ## CPC - G06F 3/03545: {Pens or stylus} - G06F 1/1607: {Arrangements to support accessories mechanically attached to the display housing (G06F1/1603, G06F1/1605 take precedence)} - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/1698: {the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone (details of antennas disposed inside a computer H01Q1/2266)} - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - G06F 3/021: {Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner} - G06F 3/0231: {Cordless keyboards} - G06F 3/038: Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry - G06F 3/0383: {Signal control means within the pointing device} - G06F 3/0412: {Digitisers structurally integrated in a display} - G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware} - G06F 3/0441: {using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals} - G06F 3/0442: {using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser} - G06F 3/04842: Selection of displayed objects or displayed text elements (G06F3/0482 takes precedence) - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - G06F 40/166: Editing, e.g. inserting or deleting - H02J 7/342: {The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68)} - H02J 50/10: using inductive coupling - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - G06F 3/0202: {Constructional details or processes of manufacture of the input device} - G06F 2200/1632: Pen holder integrated in the computer - G06F 2200/1633: Protecting arrangement for the entire housing of the computer - G06F 2203/0384: Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices - Y02B 40/00: Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract Embodiments of this application provide a pairing method and a pairing system. The pairing system includes a stylus, a wireless keyboard, and an electronic device. The stylus includes a first coil, and the wireless keyboard includes a second coil. The method includes: In response to that the wireless keyboard charges the stylus through the second coil and the first coil, the stylus sends a pairing request to the wireless keyboard through the first coil and the second coil. The wireless keyboard sends the pairing request to the electronic device. The electronic device displays a pairing dialog box based on the pairing request, where the pairing dialog box is used to prompt a user to trigger the electronic device and the stylus to perform pairing. ## Claims ### Claim 1 A pairing method, applied to a pairing system, wherein the pairing system comprises a stylus, a wireless keyboard, and an electronic device, the stylus comprises a first coil, the wireless keyboard comprises a second coil, and the method comprises: in response to that the wireless keyboard charges the stylus through the second coil and the first coil, sending, by the stylus, a pairing request which is transmitted through the first coil and the second coil to the wireless keyboard; sending, by the wireless keyboard, the pairing request to the electronic device; and displaying, by the electronic device, a pairing dialog box based on the pairing request, wherein the pairing dialog box is used to prompt a user to trigger the electronic device and the stylus to perform pairing. ### Claim 2 (depends on 1) The method according to claim 1, wherein before the sending, by the stylus, the pairing request to the wireless keyboard through the first coil and the second coil, the method further comprises: obtaining, by the stylus, a status of connection between the stylus and the electronic device; and the sending the pairing request to the wireless keyboard comprises: in response to that the stylus is not connected to the electronic device, sending, by the stylus, the pairing request to the wireless keyboard through the first coil and the second coil. ### Claim 3 (depends on 2) The method according to claim 2, wherein the obtaining, by the stylus, the status of connection between the stylus and the electronic device comprises: detecting, by the stylus, a connection status. ### Claim 4 (depends on 2) The method according to claim 2, wherein the obtaining, by the stylus, the status of connection between the stylus and the electronic device comprises: detecting, by the electronic device, a connection status, and broadcasting the connection status; and receiving, by the stylus, the connection status. ### Claim 5 (depends on 1) The method according to claim 1, wherein that the wireless keyboard charges the stylus through the second coil and the first coil comprises: charging, by the wireless keyboard, the stylus based on a wireless protocol through the second coil and the first coil; and the sending the pairing request to the wireless keyboard comprises: sending, by the stylus, the pairing request to the wireless keyboard based on the wireless protocol. ### Claim 6 (depends on 5) The method according to claim 5, wherein the pairing request is comprised in any data packet exchanged between the stylus and the wireless keyboard based on the wireless protocol. ### Claim 7 (depends on 1) The method according to claim 1, wherein the pairing request comprises a media access control MAC address of the stylus. ### Claim 8 (depends on 7) The method according to claim 7, wherein the wireless keyboard is in a connection for wireless communication to the electronic device; and before the sending, by the wireless keyboard, the pairing request to the electronic device, the method further comprises: parsing, by the wireless keyboard, the pairing request to obtain the MAC address of the stylus; encapsulating the MAC address in a data packet in a format for the wireless communication; and the sending, by the wireless keyboard, the pairing request to the electronic device comprises: sending, by the wireless keyboard, the data packet in the format for the wireless communication to the electronic device. ### Claim 9 (depends on 1) The method according to claim 1, wherein the wireless keyboard comprises a third coil, the electronic device comprises a fourth coil, the electronic device charges the wireless keyboard through the fourth coil and the third coil, and the sending, by the wireless keyboard, the pairing request to the electronic device comprises: sending, by the wireless keyboard, the pairing request to the electronic device through the third coil and the fourth coil. ### Claim 10 (depends on 9) The method according to claim 9, wherein the sending the pairing request to the electronic device comprises: sending, by the wireless keyboard, the pairing request to the electronic device based on a wireless protocol. ### Claim 11 (depends on 10) The method according to claim 10, wherein the pairing request is comprised in any data packet exchanged between the wireless keyboard and the electronic device based on the wireless protocol. ### Claim 12 (depends on 9) The method according to claim 9, wherein the method further comprises: detecting, by the electronic device in response to receiving the pairing request from the wireless keyboard, whether the electronic device enables a wireless communication function; and if the electronic device does not enable the wireless communication function, outputting, by the electronic device, a prompt dialog box, wherein the prompt dialog box is used to prompt the user to enable the wireless communication function of the electronic device. ### Claim 13 A pairing system, comprising: a stylus having a first coil; a wireless keyboard having a second coil; and an electronic device, wherein in response to that the wireless keyboard charges the stylus through the second coil and the first coil, the stylus sends a pairing request which is transmitted through the first coil and the second coil to the wireless keyboard, the wireless keyboard sends the pairing request to the electronic device, and the electronic device displays a pairing dialog box based on the pairing request, wherein the pairing dialog box is used to prompt a user to trigger the electronic device and the stylus to perform pairing. ### Claim 14 (depends on 13) The system according to claim 13, wherein before sending the pairing request to the wireless keyboard through the first coil and the second coil, the stylus is configured to obtain a status of connection between the stylus and the electronic device, and wherein in response to that the stylus is not connected to the electronic device, the stylus sends the pairing request to the wireless keyboard through the first coil and the second coil. ### Claim 15 (depends on 14) The system according to claim 14, wherein the stylus is configured to detect a connection status. ### Claim 16 (depends on 14) The system according to claim 14, wherein in obtaining the status of connection between the stylus and the electronic device, the electronic device is configured to detect a connection status, and broadcast the connection status, and the stylus is configured to receive the connection status. ### Claim 17 (depends on 13) The system according to claim 13, wherein in charging the stylus through the second coil and the first coil, the wireless keyboard is configured to charge the stylus based on a wireless protocol through the second coil and the first coil; and the stylus is configured to send the pairing request to the wireless keyboard based on the wireless protocol. ### Claim 18 (depends on 17) The system according to claim 17, wherein the pairing request is comprised in any data packet exchanged between the stylus and the wireless keyboard based on the wireless protocol. ### Claim 19 (depends on 13) The system according to claim 13, wherein the pairing request comprises a media access control (MAC) address of the stylus. ### Claim 20 (depends on 19) The system according to claim 19, wherein the wireless keyboard is in a connection for wireless communication to the electronic device; and before sending the pairing request to the electronic device, the wireless keyboard parses the pairing request to obtain the MAC address of the stylus, wherein the MAC address is encapsulated in a data packet in a format for the wireless communication; and wherein sending the pairing request to the electronic device comprises sending the data packet in the format for the wireless communication to the electronic device.