# US 2019/0171806 A1 · Authentication method, wearable device and mobile device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0171806 A1 - Document ID: US20190171806A1 - Status: Published application - Kind: A1 - Application number: 16/324,139 - Filed: 2017-08-10 - Published: 2019-06-06 - Earliest claimed: 2016-08-11 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Hugo EMBRECHTS; Dimitri TORFS; Conor AYLWARD - Web page: https://patentgrep.com/patent/US20190171806A1 ## CPC - G06F 21/35: communicating wirelessly - G01C 21/1654: {with electromagnetic compass} - G06K 19/07762: {the adhering arrangement making the record carrier wearable, e.g. having the form of a ring, watch, glove or bracelet (record carriers for insertion in the human body for medical purposes A61B90/00; record carriers adapted for attachment to animals A01K11/00)} - H04W 4/025: {using location based information parameters} - H04W 4/029: Location-based management or tracking services - H04W 12/068: {using credential vaults, e.g. password manager applications or one time password [OTP] applications} - H04W 12/082: using revocation of authorisation - H04W 12/33: using wearable devices, e.g. using a smartwatch or smart-glasses - G06F 2221/2111: Location-sensitive, e.g. geographical location, GPS - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 12/04: Key management, e.g. using generic bootstrapping architecture [GBA] - H04W 12/63: Location-dependent; Proximity-dependent - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract In an authentication method, a wireless communication is established between a mobile device and a wearable device. A proximity is detected between the mobile device and the wearable device by comparing mobile device position information and wearable device position information. Access to the mobile device is granted based on a detected proximity. ## Claims ### Claim 1 An authentication method, comprising: establishing a wireless communication between a mobile device and a wearable device; detecting a proximity between the mobile device and the wearable device by comparing mobile device position information and wearable device position information; and granting access to the mobile device based on a detected proximity. ### Claim 2 (depends on 1) The authentication method of claim 1, wherein at least one of the mobile device position information and the wearable device position information is based on an inertial navigation system calculation. ### Claim 3 (depends on 1) The authentication method of claim 1, wherein at least one of the mobile device position information and the wearable device position information is based on at least one of acceleration information, gyroscope information and magnetometer information. ### Claim 4 (depends on 1) The authentication method of claim 1, wherein comparing the mobile device position information and the wearable device position information comprises determining a deviation between the mobile device position information and the wearable device position information. ### Claim 5 (depends on 4) The authentication method of claim 4, wherein proximity is not detected if the deviation exceeds a predetermined threshold. ### Claim 6 (depends on 1) The authentication method of claim 1, further comprising determining authentication data. ### Claim 7 (depends on 6) The authentication method of claim 6, wherein granting access to the mobile device is further based on the authentication data. ### Claim 8 (depends on 1) The authentication method of claim 1, wherein establishing the wireless communication between the mobile device and the wearable device comprises pairing the mobile device and the wearable device. ### Claim 9 (depends on 1) The authentication method of claim 1, further comprising detecting whether wearing of the wearable device by a user has been interrupted. ### Claim 10 (depends on 9) The authentication method of claim 9, wherein the wireless communication between the mobile device and the wearable device is restricted in response to detecting that the wearing of the wearable device has been interrupted. ### Claim 11 (depends on 9) The authentication method of claim 9, wherein authentication data stored in a storage of the wearable device are deleted in response to detecting that the wearing of the wearable device has been interrupted. ### Claim 12 A wearable device for granting access to a mobile device comprising circuitry configured to: establish a wireless communication with the mobile device; and send authentication data to the mobile device in response to a detected proximity between the mobile device and the wearable device, wherein the proximity is detected based on a comparison of mobile device position information and wearable device position information. ### Claim 13 (depends on 12) The wearable device of claim 12, wherein the circuitry is further configured to generate the wearable device position information based on an inertial navigation system calculation. ### Claim 14 (depends on 12) The wearable device of claim 12, wherein the circuitry is further configured to detect whether wearing of the wearable device by a user has been interrupted. ### Claim 15 (depends on 13) The wearable device of claim 13, wherein the circuitry is further configured to store the authentication data and to delete the authentication data in response to detecting that the wearing of the wearable device has been interrupted. ### Claim 16 A mobile device comprising circuitry configured to: establish a wireless communication with a wearable device; receive authentication data to the mobile device in response to a detected proximity between the mobile device and the wearable device, wherein the proximity is detected based on a comparing mobile device position information and wearable device position information; and grant access to the mobile device based on a detected proximity. ### Claim 17 (depends on 16) The mobile device of claim 16, wherein the circuitry is further configured to generate the mobile device position information based on an inertial navigation system calculation. ### Claim 18 (depends on 16) The mobile device of claim 16, wherein the circuitry is further configured to decrypt data based on the received authentication data. ### Claim 19 (depends on 16) The mobile device of claim 16, wherein the circuitry is further configured to grant access to the mobile device based on the received authentication data. ### Claim 20 (depends on 16) The mobile device of claim 16, wherein the circuitry is further configured to automatically unlock the mobile device.