# US 10,945,677 B2 · Method for detecting biometric information and electronic device using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,945,677 B2 - Document ID: US10945677B2 - Status: Granted - Kind: B2 - Application number: 16/256,497 - Filed: 2019-01-24 - Published: 2019-05-23 - Granted: 2021-03-16 - Earliest claimed: 2015-08-12 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Gihsung Chung; Jooman Han; So Hyun Chung; Dae-Yong Lee; Hongsig Kim; Hyunwoo Jang; Cheolho Cheong; Jae-Woong Chun; Won Suk Choi - Web page: https://patentgrep.com/patent/US10945677B2 ## CPC - A61B 5/7285: {for synchronizing or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal} - A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition - A61B 5/11: Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb {(A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721)} - A61B 5/1118: {Determining activity level} - A61B 5/443: {Evaluating skin constituents, e.g. elastin, melanin, water} - A61B 5/6801: {specially adapted to be attached to or worn on the body surface} - A61B 5/681: {Wristwatch-type devices} - A61B 5/6843: {Monitoring or controlling sensor contact pressure} - A61B 5/7475: {User input or interface means, e.g. keyboard, pointing device, joystick} - G04G 21/025: {for measuring physiological data} - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 1/1684: {Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675} - G06F 1/1694: {the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer} - G06F 1/3215: Monitoring of peripheral devices - G06F 1/3231: Monitoring the presence, absence or movement of users - G06F 1/325: {Power saving in peripheral device} - A61B 5/021: Measuring pressure in heart or blood vessels - A61B 5/02438: {with portable devices, e.g. worn by the patient} - A61B 5/14542: {for measuring blood gases (A61B5/14551 takes precedence)} - A61B 2560/0209: adapted for power saving - A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches - A61B 2562/0223: Magnetic field sensors - A61B 2562/0257: Proximity sensors - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G04G: ELECTRONIC TIME-PIECES - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A wearable electronic device for detecting biometric information is provided. The device includes a motion sensor, one or more optical sensors including a light emitting unit and a light receiving unit, and at least one processor configured to obtain a first motion signal corresponding to the wearable electronic device, prior to a biological signal being obtained, emit light using the light emitting unit based on a determination that the first motion signal satisfies a specified condition, obtain the biological signal corresponding to a user using the light receiving unit based on reflected light which the light is reflected on the user, obtain, using the motion sensor, a second motion signal corresponding to the wearable electronic device during the obtaining of the biological signal, and refrain from the emitting of the light, based on a determination that the second motion signal does not satisfy the specified condition. ## Claims ### Claim 1 A wearable electronic device comprising: a motion sensor; one or more optical sensors includes a light emitting unit and a light receiving unit; and at least one processor configured to: obtain, using the motion sensor, a first motion signal corresponding to the wearable electronic device, prior to a biological signal being obtained using the one or more optical sensors, emit light using the light emitting unit based at least in part on a determination that the first motion signal satisfies a specified condition, obtain the biological signal corresponding to a user using the light receiving unit based at least in part on reflected light which the light is reflected on the user, obtain, using the motion sensor, a second motion signal corresponding to the wearable electronic device during the obtaining of the biological signal, and refrain from the emitting of the light, based at least in part on a determination that the second motion signal does not satisfy the specified condition. ### Claim 2 (depends on 1) The wearable electronic device of claim 1, wherein the at least one processor is further configured to: determine whether the wearable electronic device is attached to the user using the one or more optical sensors; and perform the emitting of the light further based at least in part on a determination that the wearable electronic device is attached to the user. ### Claim 3 (depends on 2) The wearable electronic device of claim 2, wherein the at least one processor is further configured to: perform the determining based at least in part on a determination that the first motion signal satisfies a specified condition. ### Claim 4 (depends on 2) The wearable electronic device of claim 2, wherein the at least one processor is further configured to: refrain from the emitting of the light further based at least in part on a determination that the wearable electronic device is not attached to the user. ### Claim 5 (depends on 1) The wearable electronic device of claim 1, wherein the at least one processor is further configured to: perform the emitting of the light based at least in part on a specified time period. ### Claim 6 (depends on 5) The wearable electronic device of claim 5, wherein the at least one processor is further configured to: adjust the specified time period based at least in part on context information corresponding to the biological signal. ### Claim 7 (depends on 1) The wearable electronic device of claim 1, wherein the at least one processor is further configured to: generate a heart rate information corresponding to the user using the biological signal. ### Claim 8 (depends on 7) The wearable electronic device of claim 7, wherein the at least one processor is further configured to: present a notification corresponding to the heart rate information based at least in part on a determination that the heart rate information is higher than a threshold. ### Claim 9 A wearable electronic device comprising: a first sensor; a second sensor; and at least one processor configured to: obtain, using the first sensor, first information corresponding to movement of the wearable electronic device, activate the second sensor based at least in part of the movement, obtain, using the activated second sensor, second information corresponding to biological signal related to a user during the obtaining of the first information, and refrain from the obtaining of the second information using the activated second sensor based at least in part on a determination that the first information satisfies a specified range. ### Claim 10 (depends on 9) The wearable electronic device of claim 9, wherein the at least one processor is further configured to: control the second sensor to inactivate at least a portion thereof, as at least part of the refraining. ### Claim 11 (depends on 10) The wearable electronic device of claim 10, wherein the at least one processor is further configured to: control the second sensor to activate the at least a portion thereof, based at least in part on a determination that the first information satisfies another specified range lower than the specified range after the refraining. ### Claim 12 (depends on 10) The wearable electronic device of claim 10, wherein the at least one processor is further configured to: control the second sensor to activate the at least a portion thereof, further based at least in part on a specified time period. ### Claim 13 (depends on 12) The wearable electronic device of claim 12, wherein the at least one processor is further configured to: adjust the specified time period based at least in part on context information generated using the first information and the second information. ### Claim 14 (depends on 9) The wearable electronic device of claim 9, wherein the at least one processor is further configured to: generate a heart rate information corresponding to the user using the second information. ### Claim 15 (depends on 14) The wearable electronic device of claim 14, wherein the at least one processor is further configured to: present a notification corresponding to the heart rate information based at least in part on a determination that the heart rate information is higher than a threshold. ### Claim 16 A wearable electronic device comprising: a first sensor; a second sensor; and at least one processor configured to: obtain, using the first sensor, first information corresponding to movement of the wearable electronic device, obtain, using the second sensor, second information corresponding to biological signal related to a user during the obtaining of the first information, and refrain from the obtaining of the second information based at least in part on a determination that the first information satisfies a specified condition. ### Claim 17 (depends on 16) The wearable electronic device of claim 16, wherein the at least one processor is further configured to: activate the second sensor prior to obtaining of the second information, in response to the movement of the wearable electronic device. ### Claim 18 (depends on 17) The wearable electronic device of claim 17, wherein the at least one processor is further configured to: perform the activating based at least in part on a determination that the first information does not satisfy the specified condition. ### Claim 19 (depends on 16) The wearable electronic device of claim 16, wherein the at least one processor is further configured to: control the second sensor to inactivate at least a portion thereof, as at least part of the refraining. ### Claim 20 (depends on 16) The wearable electronic device of claim 16, wherein the second sensor includes a light emitting unit, and wherein the processor is further configured to: emit light, using the light emitting unit, as at least part of the obtaining of the second information, and stop the emitting of the light, using the light emitting unit, as at least part of the refraining.