# US 11,998,346 B2 · Electronic device and method for determining sleep-related information

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- Number: US 11,998,346 B2
- Document ID: US11998346B2
- Status: Granted
- Kind: B2
- Application number: 16/614,472
- Filed: 2018-04-13
- Published: 2020-07-02
- Granted: 2024-06-04
- Earliest claimed: 2017-05-19
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Wonkyu Lee; Hwan Shim; Hyunsu Kim; Seounghun Kim; Taeho Kim; Sun-Kee Lee
- Web page: https://patentgrep.com/patent/US11998346B2

## CPC

- A61B 5/4809: {Sleep detection, i.e. determining whether a subject is asleep or not}
- A61B 5/0082: {adapted for particular medical purposes}
- A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B 5/0507: using microwaves or terahertz waves
- A61B 5/1126: {using a particular sensing technique}
- A61B 5/113: occurring during breathing
- A61B 5/6887: {mounted on external non-worn devices, e.g. non-medical devices}
- A61M 21/02: for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021)
- G01S 7/03: Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S 7/415: {Identification of targets based on measurements of movement associated with the target}
- G01S 13/50: Systems of measurement based on relative movement of target
- G01S 13/87: Combinations of radar systems, e.g. primary radar and secondary radar
- G01S 13/88: Radar or analogous systems specially adapted for specific applications (electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00)
- H05B 47/105: in response to determined parameters
- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/02444: {Details of sensor (A61B5/02427 takes precedence)}
- A61B 5/0816: {Measuring devices for examining respiratory frequency (measuring frequency of electric signals G01R23/00)}
- A61B 5/7235: {Details of waveform analysis (detecting specific parameters of the electrocardiograph cycle A61B5/349)}
- A61B 2560/0242: adapted to measure environmental factors, e.g. temperature, pollution
- A61M 2021/0027: {by the hearing sense}
- A61M 2021/0044: {by the sight sense}
- G01S 13/56: for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)}
- G01S 2013/0236: {Special technical features}
- Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

An electronic device according to various embodiments comprises: a bio-signal detection sensor configured to acquire first and second biometric information on an object outside the electronic device; and a processor, wherein the processor can be configured to: acquire the first and second biometric information by using the bio-signal detection sensor; configure a first variance, in which the first biometric information is changed, and a second variance, in which the second biometric information is changed; determining a state of the object related to the sleep on the basis of at least a part of the first variance and the second variance; and estimate a sleep latency related to the object on the basis of at least a part of the state.

## Claims

### Claim 1

An electronic device comprising:
a memory configured to store instructions;
an RF sensor configured to transmit a Radio Frequency (RF) signal and receive a reflection signal of the RF signal; and
at least one processor coupled to the RF sensor and the memory and configured to execute the stored instructions in order to:
identify one or more signals indicating a state of a user within the received reflection signal,
monitor a change in data determined based on the one or more signals according to a time,
determine that a time point at which the user actually begins sleeping is a first time point at which the monitored change is smaller than a first reference value,
determine that a time point at which the user intends to sleep is a second time point at which the monitored change is larger than a second reference value,
determine that a sleep latency of the user is a time interval between the first time point and the second time point, and
store information on the determined time interval.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein at least one processor is configured to execute the stored instructions in order to:
monitor the received reflection signal,
identify the one or more signals within the received reflection signal in response to monitoring that a change in the reflection signal is output of a predetermined range, and
store the data in the memory or temporarily store the data in response to monitoring that the change in the reflection signal is output of the predetermined range.

### Claim 3 (depends on 2)

The electronic device of claim 2, wherein the predetermined range is configured to identify whether the user is located in a specified area.

### Claim 4 (depends on 2)

The electronic device of claim 2, wherein at least one processor is configured to execute the stored instructions in order to:
identify the stored data in response to the determination that the time point at which the user actually begins sleeping is the first time point,
identify the second time point at which the change within the stored data is larger than the second reference value, and
determine that the time point at which the user intends to sleep is the second time point.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the one or more signals comprise a first signal indicating motion of the user, a second signal indicating a breath state of the user, or a third signal indicating a heartbeat state of the user.

### Claim 6 (depends on 5)

The electronic device of claim 5, wherein at least one processor is configured to execute the stored instructions in order to:
acquire a first value indicating the motion of the user from the first signal,
acquire a second value indicating the breath state of the user from the second signal,
acquire a third value indicating the heartbeat state of the user from the third signal, and
determine that a probability of a sleep state of the user is the data, based on at least a portion of the first value, the second value, and the third value.

### Claim 7 (depends on 5)

The electronic device of claim 5, wherein the RF sensor comprises a plurality of filters, and at least one processor is configured to execute the stored instructions in order to:
identify the first signal related to a first band within the received reflection signal through a first filter in the plurality of filters,
identify the second signal related to a second band within the received reflection signal through a second filter in the plurality of filters, and
identify the third signal related to a third band within the received reflection signal through a third filter in the plurality of filters.

### Claim 8 (depends on 1)

The electronic device of claim 1, further comprising an illumination sensor configured to measure illumination of light around the electronic device and a microphone configured to receive a sound signal around the electronic device,
wherein at least one processor is further configured to execute the stored instructions in order to:
determine a time point at which the user actually begins sleeping based on at least a portion of information on the illumination and information on the sound signal, and
determine a time point at which the user intends to sleep based on at least a portion of the information on the illumination and the information on the sound signal.

### Claim 9 (depends on 1)

The electronic device of claim 1, further comprising a circuit configured to control a brightness of an environment in which the electronic device is located,
wherein at least one processor is further configured to execute the stored instructions in order to control the brightness of the environment in which the electronic device is located in response to the determination of the time point at which the user actually begins sleeping.

### Claim 10 (depends on 1)

The electronic device of claim 1, further comprising a communication interface configured to communicate with an external electronic device,
wherein at least one processor is configured to execute the stored instructions in order to transmit information on the determined time interval to the external electronic device.

### Claim 11 (depends on 1)

The electronic device of claim 1, further comprising a speaker configured to output a sound signal,
wherein at least one processor is configured to execute the stored instructions in order to change the output sound signal in response to the determination of the time point at which the user actually begins sleeping.

### Claim 12 (depends on 1)

The electronic device of claim 1, wherein the RF sensor comprises a transmission circuit configured to transmit the RF signal through a plurality of beams and a plurality of antennas, and at least one processor is configured to execute the stored instructions in order to transmit the RF signal through the plurality of beams.

### Claim 13

A method of an electronic device, the method comprising:
transmitting a Radio Frequency (RF) signal;
receiving a reflection signal of the RF signal;
identifying one or more signals indicating a state of a user within the received reflection signal;
monitoring a change in data determined based on the one or more signals according to a time;
determining that a time point at which the user actually begins sleeping is a time point at which the monitored change is smaller than a first reference value;
determining that a time point at which the user intends to sleep is a second time point at which the monitored change is larger than a second reference value;
determining that a sleep latency of the user is a time interval between the first time point and the second time point; and
storing information on the determined time interval.

### Claim 14 (depends on 13)

The method of claim 13, further comprising:
monitoring the received reflection signal;
identifying the one or more signals within the received reflection signal in response to monitoring that a change in the reflection signal is output of a predetermined range; and
storing the data in the memory or temporarily store the data in response to monitoring that the change in the reflection signal is output of the predetermined range.

### Claim 15 (depends on 13)

The method of claim 13, further comprising:
determining a time point at which the user actually begins sleeping based on at least a portion of information on illumination of light and information on the sound signal; and
determining a time point at which the user intends to sleep based on at least a portion of the information on illumination of light and information on the sound signal.

### Claim 16 (depends on 13)

The method of claim 13, further comprising:
controlling a brightness of an environment in which the electronic device is located in response to the determination of the time point at which the user actually begins sleeping.

### Claim 17 (depends on 13)

The method of claim 13, further comprising:
transmitting information on the determined time interval to the external electronic device.

### Claim 18 (depends on 13)

The method of claim 13, further comprising:
changing an output sound signal in response to the determination of the time point at which the user actually begins sleeping.

### Claim 19 (depends on 13)

The method of claim 13, further comprising:
transmitting the RF signal through a plurality of beams and a plurality of antennas.