# US 10,478,110 B2 · Method for measuring social relationship using heart rhythm pattern (HRP)

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- Number: US 10,478,110 B2
- Document ID: US10478110B2
- Status: Granted
- Kind: B2
- Application number: 15/306,710
- Filed: 2014-06-19
- Published: 2017-02-23
- Granted: 2019-11-19
- Earliest claimed: 2014-06-18
- Assignees: Sangmyung University Seoul Industry-Academy Cooperation Foundation; Center of Human-Centered Interaction for Coexistence
- Applicants: Sangmyung University Seoul Industry-Academy Cooperation Foundation; Center of Human-Centered Interaction for Coexistence
- Inventors: Sang In Park; Min Cheol Whang; Myoung Ju Won; Sung Teac Hwang
- Web page: https://patentgrep.com/patent/US10478110B2

## CPC

- A61B 5/165: {Evaluating the state of mind, e.g. depression, anxiety}
- A61B 5/346: Analysis of electrocardiograms
- A61B 5/352: Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
- A61B 5/7264: {Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- G16H 40/63: for local operation
- G16H 50/30: for calculating health indices; for individual health risk assessment
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A social intimacy determining method includes detecting electrocardiogram (ECG) data from at least two subjects; detecting heart rhythm pattern (HRP) data from ECG signals of the two subjects; and determining a relationship (intimacy) between the two subjects by comparing the HRP data of the two subjects.

## Claims

### Claim 1

A social relationship determining method comprising:
detecting, with an electrocardiogram (ECG) sensor, ECG signals from at least two subjects;
defining, with a data processor, a heart rhythm pattern (HRP) data spectrum including a beat per minute (BPM) from the ECG signals of the at least two subjects;
extracting, with the data processor, a difference X value between the beats per minute (BPM) of the heart rhythm pattern (HRP) data spectrum of the at least two subjects defined from the ECG signals;
extracting, with the data processor, an r square value via a correlation analysis of each of the HRP data spectrum;
determining, with an analyzer configured for estimating intimacy coupled to the data processor, a social relationship between the at least two subjects by using the following equation: Y=0.00943167*X, where Y is a result value, wherein the social relationship is determined as being strong when the r square value is larger than the result value Y, otherwise, the social relationship is determined as being weak; and
displaying, with a display coupled to the data processor, a strength of the social relationship based on a comparison of the result value Y with the r square value.

### Claim 2 (depends on 1)

The social relationship determining method of claim 1, wherein R-peak to R-peak Interval (RRI) data is acquired from the ECG signals.

### Claim 3 (depends on 2)

The social relationship determining method of claim 2, wherein the HRP data spectrum comprises the BPM, and a standard deviation normal to normal (SDNN) extracted using a standard deviation of a normal RRI.

### Claim 4 (depends on 3)

The social relationship determining method of claim 3, wherein the r square value and the difference X value between the BPM of the at least two subjects are obtained via a correlation analysis of the HRP data spectrum of the at least two subjects.

### Claim 5 (depends on 1)

A social relationship determining system for performing the method of claim 1, the system comprising:
the ECG sensor, the ECG sensor being configured to extract the ECG signals from the at least two subjects;
the display configured to present a specific facial expression to at least one of the at least two subjects;
the data processor configured to process the ECG signals of the at least two subjects obtained by the sensor; and
the analyzer configured to analyze intimacy between the at least two subjects by analyzing the ECG signals processed by the data processor.

### Claim 6 (depends on 5)

The social relationship determining system of claim 5, wherein the data processor extracts an R-peak to R-peak Interval (RRI) from the ECG signals.

### Claim 7 (depends on 6)

The social relationship determining system of claim 6, wherein the HRP data spectrum comprises the BPM, and a standard deviation normal to normal (SDNN) extracted using a standard deviation of a normal RRI.

### Claim 8 (depends on 7)

The social relationship determining system of claim 7, wherein the analyzer uses the r square value and the difference X value between the BPM of the at least two subjects which are obtained by the data processor via a correlation analysis of the HRP data spectrum of the at least two subjects.