# US 2019/0318071 A1 · Mobile device, user authentication method and user authentication system of mobile device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0318071 A1 - Document ID: US20190318071A1 - Status: Published application - Kind: A1 - Application number: 16/465,775 - Filed: 2017-12-20 - Published: 2019-10-17 - Earliest claimed: 2016-12-20 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Jin-ha HWANG - Web page: https://patentgrep.com/patent/US20190318071A1 ## CPC - G06F 21/31: User authentication - G06F 21/35: communicating wirelessly - H04B 1/3827: Portable transceivers - H04L 63/0876: {based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint} - H04M 1/725: Cordless telephones (user interfaces specially adapted therefor H04M1/724) - H04W 12/06: Authentication - H04L 63/0815: {providing single-sign-on or federations} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 12/71: Hardware identity - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A mobile device is disclosed. The present mobile device comprises: a display for displaying an authentication information input screen for receiving user authentication information when the mobile device is connected to a server providing a service requiring input of the user authentication information; a first communication unit for transmitting, to the server, the user authentication information inputted through the authentication information input screen and first simple authentication information generated in the mobile device; a second communication unit for communicating with an electronic device to receive unique information of the electronic device; and a processor for generating second simple authentication information by using unique information of the mobile device and the unique information of the electronic device, transmitting the second simple authentication information to the server which matches the first simple authentication information to the user authentication information which are matched with each other, and controlling the display to display an authentication result screen provided from the server according to whether or not the first and the second simple authentication information are matched. ## Claims ### Claim 1 A mobile device communicating with a server providing a service requiring input of user authentication information, the mobile device comprising: a display for, based on the mobile device being connected to a server, displaying an authentication information input screen for receiving the user authentication information; a first communication unit for transmitting, to the server, the user authentication information inputted through the authentication information input screen and first simple authentication information generated in the mobile device; a second communication unit for receiving unique information of an electronic device by communicating with the electronic device; and a processor configured to: generate second simple authentication information by using unique information of the mobile device and the unique information of the electronic device, transmit the second simple authentication information to the server which stores the first simple authentication information and the user authentication information which are matched with each other, and control the display to display an authentication result screen provided from the server according to whether the first and the second simple authentication information are matched. ### Claim 2 (depends on 1) The mobile device of claim 1, wherein the processor is configured to: based on a user command for registering simple authentication information being inputted, generate the first simple authentication information using unique information of the mobile device and unique information of the electronic device, and control the first communication unit to transmit the inputted user authentication information and the first simple authentication information to the server. ### Claim 3 (depends on 2) The mobile device of claim 2, wherein the server, based on the user authentication information and the first simple authentication information being received from the mobile device, matches the first simple authentication information and the user authentication information and and stores the mateched first simple authentication information and user authentication information. ### Claim 4 (depends on 1) The mobile device of claim 1, wherein the second communication unit performs pairing with the electronic device according to a near-field communication method, and wherein the processor obtains unique information of the electronic device in the pairing process. ### Claim 5 (depends on 4) The mobile device of claim 4, wherein the processor is configured to: based on the mobile device being paired with the electronic device, generate the second simple authentication information, and, based on the mobile device being reconnected to the server, control the first communication unit to transmit the second simple authentication information to the server. ### Claim 6 (depends on 4) The mobile device of claim 4, wherein the processor is configured to: based on the mobile device being reconnected to the server, confirm whether the mobile device is paired with the electronic device, based on the mobile device and the electronic device being paired, generate the second simple authentication information, and control the first communication unit to transmit the second simple authentication information to the server. ### Claim 7 (depends on 4) The mobile device of claim 4, wherein the processor, based on pairing of the mobile device and the electronic device being released, deletes the second simple authentication information. ### Claim 8 (depends on 1) The mobile device of claim 1, wherein the electronic device is a stationary electronic device which is fixedly arranged on a predetermined position and used. ### Claim 9 A user authentication method of a mobile device, the method comprising: based on the mobile device being connected to a server providing a service requiring input of user authentication information, displaying an authentication information input screen for receiving the user authentication information; transmitting, to the server, the user authentication information inputted through the authentication information input screen and first simple authentication information generated in the mobile device; receiving unique information of the electronic device by communicating with an electronic device; generating second simple authentication information by using unique information of the mobile device and the unique information of the electronic device; transmitting the second simple authentication information to the server which strores the first simple authentication information and the user authentication information which are matched with each other; and displaying an authentication result screen provided from the server according to whether the first and the second simple authentication information are matched. ### Claim 10 (depends on 9) The method of claim 9, wherein the transmitting the first simple authentication information to the server comprises: receiving unique information of the electronic device from the electronic device; based on a user command for registering simple authentication information being inputted, generating the first simple authentication information by using unique information of the mobile device and unique information of the electronic device; and transmitting the inputted user authentication information and the first simple authentication information to the server. ### Claim 11 (depends on 10) The method of claim 10, wherein the server, based on the user authentication information and the first simple authentication information being received from the mobile device, matches the first simple authentication information and the user authentication information and stores the matched first simple authentication information and user authentication information. ### Claim 12 (depends on 9) The method of claim 9, wherein the receiving unique information of the electronic device comprises receiving unique information of the electronic device in a process of pairing with the electronic device according to a near-field communication method. ### Claim 13 (depends on 12) The method of claim 12, wherein the generating the second simple authentication information comprises, based on the mobile device being paired with the electronic device, generating the second simple authentication information, and wherein the transmitting the second simple authentication information comprises, based on the mobile device being reconnected to the server, transmitting the second simple authentication information to the server. ### Claim 14 (depends on 12) The method of claim 12, wherein the generating the second simple authentication information comprises: based on the mobile device being reconnected to the server, confirming whether the mobile device is paired with the electronic device; and based on the mobile device and the electronic device being paired, generating the second simple authentication information. ### Claim 15 (depends on 12) The method of claim 12, comprising: based on pairing of the mobile device and the electronic device being released, deleting the second simple authentication information.