# US 2017/0286748 A1 · Sensor for increasing security using biometric data, mobile device including the same, and authentication method of the mobile device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0286748 A1 - Document ID: US20170286748A1 - Status: Published application - Kind: A1 - Application number: 15/471,269 - Filed: 2017-03-28 - Published: 2017-10-05 - Earliest claimed: 2016-03-29 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sun Kwon KIM; Hyung Jong Ko; Seong Il Park - Web page: https://patentgrep.com/patent/US20170286748A1 ## CPC - G06V 40/1382: {Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger} - G06V 40/1365: {Matching; Classification} - G06V 40/40: Spoof detection, e.g. liveness detection - G06V 40/70: Multimodal biometrics, e.g. combining information from different biometric modalities - G06V 40/15: {Biometric patterns based on physiological signals, e.g. heartbeat, blood flow} - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract A sensor for increasing security using biometric data, a mobile device including the same, and an authentication method of the mobile device are provided. The sensor includes a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region, a plurality of electrodes, and a bio sensor connected to the electrodes to detect at least one type of biometric data. A first electrode among the electrodes is located such that a finger of the user contacts the first electrode when the finger of the user is in contact with the fingerprint acquisition region. ## Claims ### Claim 1 A sensor comprising: a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region; a plurality of electrodes; and a bio sensor connected to the electrodes to detect at least one type of biometric data, wherein a first electrode among the electrodes is located such that a finger of the user contacts the first electrode and the fingerprint acquisition region together when the finger of the user is in contact with the fingerprint acquisition region. ### Claim 2 (depends on 1) The sensor of claim 1, wherein the bio sensor is configured to operate based on a selected authentication mode, the sensor is configured to use only the fingerprint sensor of the fingerprint sensor and the bio sensor in a first authentication mode and the sensor is configured to use both the fingerprint sensor and the bio sensor in a second authentication mode. ### Claim 3 (depends on 2) The sensor of claim 2, wherein the finger of the user is on a first hand of the user and the first electrode is configured to be in contact with the finger of the first hand of the user and the electrodes except for the first electrode are configured to be in contact with a second hand of the user, the first hand and the second hand being different. ### Claim 4 (depends on 2) The sensor of claim 2, wherein the fingerprint sensor is enabled by a processor and the bio sensor is disabled by the processor in the first authentication mode and the fingerprint sensor and the bio sensor are enabled by the processor in the second authentication mode. ### Claim 5 (canceled) ### Claim 6 (depends on 1) The sensor of claim 1, wherein the biometric data is at least one of an electrocardiogram (ECG) signal, a bioelectrical impedance analysis (BIA) signal, a human body fat, a temperature, and a heart rate. ### Claim 7 (depends on 1) The sensor of claim 1, wherein the sensor is configured to transmit at least one among the fingerprint data, the biometric data, and an authentication signal to an external device. ### Claim 8 (depends on 7) The sensor of claim 7, further comprising: a memory configured to store reference fingerprint data of the user and reference biometric data of the user, wherein the sensor is configured to first compare the fingerprint data with the reference fingerprint data and second compare the biometric data with the reference biometric data, and the sensor is configured to generate the authentication signal based on the first and second comparisons. ### Claim at position 9 9-10. (canceled) ### Claim 11 A mobile device comprising: a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region, the fingerprint acquisition region having a circuit configured to acquire a fingerprint of a finger of the user; a plurality of electrodes; a bio sensor connected to the electrodes to detect at least one type of biometric data; and a processor configured to execute computer-readable instructions to control the bio sensor and the fingerprint sensor, wherein the processor is configured to use at least one of the fingerprint sensor and the bio sensor based on a selected authentication mode, the processor is configured to selectively use only the fingerprint sensor of the fingerprint sensor and the bio sensor in a first authentication mode and use both the fingerprint sensor and the bio sensor in a second authentication mode. ### Claim 12 (depends on 11) The mobile device of claim 11, wherein at least one of the electrodes contacts the finger of the user when the finger of the user is in contact with the fingerprint acquisition region. ### Claim 13 (depends on 12) The mobile device of claim 12, wherein another one of the electrodes is at one of first and second sides of the mobile device. ### Claim 14 (depends on 13) The mobile device of claim 13, wherein the at least one electrode is located to be in contact with a first hand of the user and the another electrode is placed to be in contact with a portion of the user other than the first hand of the user, the finger of the user being on the first hand. ### Claim 15 (depends on 13) The mobile device of claim 13, wherein a first electrode among the electrodes is at a first surface of the mobile device, a second electrode among the electrodes is at the first side of the mobile device, and a third electrode among the electrodes is at the second side of the mobile device. ### Claim 16 (depends on 11) The mobile device of claim 11, wherein the processor is configured to execute computer-readable instructions to enable the fingerprint sensor and disable the bio sensor in the first authentication mode and enable both the fingerprint sensor and the bio sensor in the second authentication mode. ### Claim 17 (depends on 16) The mobile device of claim 16, wherein the processor is configured to execute the computer-readable instructions to provide a graphical user interface to select the authentication mode. ### Claim 18 (depends on 11) The mobile device of claim 11, further comprising: a wireless communication transceiver configured to transmit at least one among the fingerprint data, the biometric data, and an authentication signal to an external device; and a memory configured to store reference fingerprint data of the user and reference biometric data of the user, wherein the processor is configured to execute computer-readable instructions to compare the fingerprint data with the reference fingerprint data and compare the biometric data with the reference biometric data to generate the authentication signal. ### Claim at position 18 19-21. (canceled) ### Claim 22 An authentication device comprising: a fingerprint sensor configured to detect fingerprint data of a user contacting a fingerprint acquisition region; a plurality of electrodes; and a bio sensor connected to the electrodes to detect at least one type of biometric data, wherein the plurality of electrodes are arranged to form a closed loop with a user upon being contacted by the user. ### Claim 23 (depends on 22) The authentication device of claim 22, wherein the plurality of electrodes includes, a first electrode at a front surface of the authentication device with respect to the user, a second electrode at a first side of the authentication device, a third electrode at a second side of the authentication device, the front surface, the first side and the second side being different. ### Claim 24 (depends on 23) The authentication device of claim 23, wherein the first electrode is closer to the fingerprint sensor than the second electrode and the third electrode. ### Claim 25 (depends on 22) The authentication device of claim 22, wherein the plurality of electrodes includes, a first electrode at a rear surface of the authentication device with respect to the user, a second electrode at a first side of the authentication device, a third electrode at a second side of the authentication device, the rear surface, the first side and the second side being different. ### Claim 26 (depends on 25) The authentication device of claim 25, wherein the first electrode is closer to the fingerprint sensor than the second electrode and the third electrode.