DEVICE AND SYSTEM FOR MEASURING BIOMETRIC INFORMATION

• US 20160220194A1
• Filed: 07/27/2015
• Published: 08/04/2016
• Est. Priority Date: 01/30/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KANG, Jaemin, KWON, Yongjoo, KIM, Sunkwon, KIM, Younho, PARK, Sangyun
• Granted Patent: US 10,342,496 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2503/10 Athletes
• CPC Class Codes: A61B 5/02108 from analysis of pulse wave characteristics
• CPC Class Codes: A61B 5/02154 by optical transmission
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence

Abstract

A biometric information measuring device includes a pulse wave measuring module configured to measure pulse waves by emitting light toward a target object and sensing light reflected from the target object; a communication module configured to obtain calibration information from a remote calibration server; and a biometric information analyzing module configured to analyze biometric information based on the measured pulse waves and the calibration information. The calibration information indicates biometric information measurement variables of a plurality of subjects.

Claims

1. A biometric information measuring device comprising:

a pulse wave measuring module configured to measure pulse waves of a target subject;

a communication module configured to obtain calibration information from a remote calibration server; and

a biometric information analyzing module configured to analyze biometric information of the target subject based on the measured pulse waves and the calibration information, wherein the calibration information indicates biometric information measurement variables of a plurality of subjects.

2. The biometric information measuring device of claim 1, wherein the biometric information analyzing module comprises:

a feature point extracting module configured to analyze the measured pulse waves to extract designated feature points from the pulse waves; and

a blood pressure calculator configured to calculate a blood pressure by using a blood pressure estimating equation and the extracted feature points.

3. The biometric information measuring device of claim 2, wherein the calibration server comprises:

a database in which parameters regarding relationships between reference pulse waves and reference blood pressures are stored; and

a blood pressure estimating equation calculator configured to calculate the blood pressure estimating equation by using the database.

4. The biometric information measuring device of claim 3, wherein the blood pressure calculator is further configured to receive the blood pressure estimating equation from the calibration server.

5. The biometric information measuring device of claim 3, further comprising a reference blood pressure measuring module configured to directly measure a blood pressure of a target object.

6. The biometric information measuring device of claim 5, further comprising a blood pressure-pulse wave data set extracting module configured to extract parameters regarding relationships between pulse waves and blood pressures from the pulse waves measured by the pulse wave measuring module and the blood pressure measured by the reference blood pressure measuring module.

7. The biometric information measuring device of claim 6, wherein the calibration server is further configured to receive the parameters from the blood pressure-pulse wave data set extracting module and update the database.

8. The biometric information measuring device of claim 5, further comprising a local database in which the parameters regarding the relationships between the reference pulse waves and the reference blood pressures are stored.

9. The biometric information measuring device of claim 8, further comprising a blood pressure estimating equation calculator configured to update the local database with the parameters extracted by the blood pressure-pulse wave data set extracting module and calculate the blood pressure estimating equation by using the updated local database.

10. The biometric information measuring device of claim 9, wherein the blood pressure estimating equation calculator is further configured to receive data of the database in the calibration server to update the local database, and update the blood pressure estimating equation by using the updated local database.

11. The biometric information measuring device of claim 5, wherein the pulse wave measuring module, the biometric information analyzing module, and the communication module are arranged in a main body of the biometric information measuring device, and

the reference blood pressure measuring module is connectable to the main body.

12. The biometric information measuring device of claim 11, wherein the main body is wearable on the target object.

13. The biometric information measuring device of claim 1, wherein the biometric information measuring device is a wearable device.

14. A biometric information measuring system comprising:

a biometric information measuring device comprising;

a pulse wave measuring module configured to measure pulse waves of a target subject;

a biometric information analyzing module configured to analyze biometric information of the target subject based on the pulse waves measured by the pulse wave measuring module; and

a communication module configured to obtain calibration information used to analyze the biometric information by the biometric information analyzing module;

a calibration server configured to communicate with the communication module of the biometric information measuring device and transmit the calibration information to the biometric information measuring device.

15. The biometric information measuring system of claim 14, wherein the calibration server comprises:

a database configured to store parameters regarding relationships between reference pulse waves and reference blood pressures; and

a blood pressure estimating equation calculator configured to calculate a blood pressure estimating equation used for analyzing the biometric information by using the database.

16. The biometric information measuring system of claim 15, wherein the calibration information is at least one of the parameters stored in the database and the blood pressure estimating equation.

17. The biometric information measuring system of claim 15, further comprising a reference blood pressure measuring module configured to directly measure a blood pressure of a target object.

18. The biometric information measuring device of claim 17, wherein the biometric information measuring module further comprises a blood pressure-pulse wave data set extracting module configured to extract parameters regarding relationships between pulse waves and blood pressures from the pulse waves measured by the pulse wave measuring module and the blood pressure measured by the reference blood pressure measuring module.

19. The biometric information measuring system of claim 18, wherein the calibration server is further configured to receive the parameters from the blood pressure-pulse wave data set extracting module, update the database with the received parameters, and update the blood pressure estimating equation by using the updated database.

20. The biometric information measuring system of claim 17, wherein the pulse wave measuring module, the biometric information analyzing module, and the communication module are arranged in a main body of the biometric information measuring device, and

the reference blood pressure measuring module is connected to the main body.