# US 2026/0083333 A1 · Augmenting physiological sensing based on contact condition

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2026/0083333 A1
- Document ID: US20260083333A1
- Status: Published application
- Kind: A1
- Application number: 19/330,234
- Filed: 2025-09-16
- Published: 2026-03-26
- Earliest claimed: 2024-09-25
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Ashkan OJAGHI; Adriaan J. TAAL; Hany M. ARAFA; Imam uz ZAMAN
- Web page: https://patentgrep.com/patent/US20260083333A1

## CPC

- A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20)
- A61B 5/681: {Wristwatch-type devices}
- A61B 5/6843: {Monitoring or controlling sensor contact pressure}
- G01K 1/026: {arrangements for monitoring a plurality of temperatures, e.g. by multiplexing}
- G01K 3/14: in respect of space
- A61B 2560/0223: of calibration, e.g. protocols for calibrating sensors
- A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
- A61B 2562/0271: Thermal or temperature sensors
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

A wearable device can include one or more temperatures sensors. Data from the one or more temperature sensors provide information, which can be used for the determination of the body temperature of a user wearing the electronic device. The accuracy of the determination of the body temperature of the user is dependent on variables such as the contact condition of the electronic device with the user. By determining the contact condition of the electronic device with the user, including measurements corresponding to one or more thermal emitters being in an activated state, the electronic device is optionally able to determine the contact condition and/or a correction factor, and thereby more accurately determine the temperature of the user.

## Claims

### Claim 1

An electronic device, comprising:
one or more temperature sensors;
one or more emitters; and
processing circuitry configured to:
in accordance with at least one of the one or more emitters being in an activated state, detect first temperature information;
in accordance with each of the one or more emitters being in a deactivated state, detect second temperature information, different than the first temperature information;
determine a contact condition of the electronic device with a user in accordance with the first temperature information; and
determine a temperature of the user in accordance with the contact condition of the electronic device with the user, and the second temperature information.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the processing circuitry is further configured to:
determine third temperature information based at least on the first temperature information.

### Claim 3 (depends on 1)

The electronic device of claim 1, wherein determining the contact condition between the electronic device and the user comprises determining a correction factor corresponding to a thermal resistance between the user and the electronic device.

### Claim 4 (depends on 1)

The electronic device of claim 1, wherein the processing circuitry is further configured to determine a baseline temperature corresponding to the temperature of the electronic device, when the one or more emitters are in the deactivated state.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the electronic device is further configured to:
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time exceeding a time threshold measured from activation of the at least one of the one or more emitters, determining the contact condition using the first temperature information; and
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time below the time threshold, forgo determining the contact condition of the electronic device with the user in accordance with the first temperature information.

### Claim 6 (depends on 1)

The electronic device of claim 1, wherein the electronic device is further configured to:
in accordance with a determination that one or more first criteria are satisfied, including a criterion that the first temperature information has not been detected within a time threshold measured from a last record of the first temperature information, update the first temperature information; and
in accordance with a determination that the one or more first criteria are not satisfied, forgo detecting the first temperature information.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the electronic device is further configured to detect motion data from one or more multi-channel motion sensors;
in accordance with a determination that one or more first criteria are satisfied, including a criterion that the motion data does not exceed a first movement threshold, record the first temperature information; and
in accordance with a determination that the one or more first criteria are not satisfied, forgo detecting first temperature information.

### Claim 8 (depends on 1)

The electronic device of claim 1, wherein the electronic device is further configured to:
detect when a user is wearing the electronic device;
in accordance with a determination that one or more first criteria are satisfied, including a criterion that the user has been wearing the electronic device for longer than a time threshold measured from a determination the electronic device is initially donned by the user, record the first temperature information; and
in accordance with a determination that the one or more first criteria are not satisfied, forgo detecting first temperature information.

### Claim 9

A method comprising:
at an electronic device including one or more temperature sensors, one or more emitters, and processing circuitry:
in accordance with at least one of the one or more emitters being in an activated state, detect first temperature information;
in accordance with each of the one or more emitters being in a deactivated state, detect second temperature information, different than the first temperature information;
determining a contact condition of the electronic device with a user in accordance with the first temperature information; and
determining a temperature of the user in accordance with the contact condition of the electronic device with the user, and the second temperature information.

### Claim 10 (depends on 9)

The method of claim 9, further comprising:
determining third temperature information based at least on the first temperature information.

### Claim 11 (depends on 9)

The method of claim 9, wherein determining the contact condition between the electronic device and the user comprises determining a correction factor corresponding to a thermal resistance between the user and the electronic device.

### Claim 12 (depends on 9)

The method of claim 9, wherein the processing circuitry is further configured to determine a baseline temperature corresponding to the temperature of the electronic device, when the one or more emitters are in the deactivated state.

### Claim 13 (depends on 9)

The method of claim 9, further comprising:
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time exceeding a time threshold measured from activation of the at least one of the one or more emitters, determining the contact condition using the first temperature information; and
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time below the time threshold, forgoing determining the contact condition of the electronic device with the user in accordance with the first temperature information.

### Claim 14 (depends on 9)

The method of claim 9, further comprising:
in accordance with a determination that one or more first criteria are satisfied, including a criterion that the first temperature information has not been detected within a time threshold measured from a last record of the first temperature information, update the first temperature information; and
in accordance with a determination that the one or more first criteria are not satisfied, forgo detecting the first temperature information.

### Claim 15

A non-transitory computer readable storage medium storing instructions, which when executed by an electronic device including one or more temperature sensors, one or more emitters, and processing circuitry, cause the processing circuitry to:
in accordance with at least one of the one or more emitters being in an activated state, detect first temperature information;
in accordance with each of the one or more emitters being in a deactivated state, detect second temperature information, different than the first temperature information;
determine a contact condition of the electronic device with a user in accordance with the first temperature information; and
determine a temperature of the user in accordance with the contact condition of the electronic device with the user, and the second temperature information.

### Claim 16 (depends on 15)

The non-transitory computer readable storage medium of claim 15, wherein the instructions further cause the processing circuitry to:
determine third temperature information based at least on the first temperature information.

### Claim 17 (depends on 15)

The non-transitory computer readable storage medium of claim 15, wherein determining the contact condition between the electronic device and the user comprises determining a correction factor corresponding to a thermal resistance between the user and the electronic device.

### Claim 18 (depends on 15)

The non-transitory computer readable storage medium of claim 15, wherein the instructions further cause the processing circuitry to determine a baseline temperature corresponding to the temperature of the electronic device, when the one or more emitters are in the deactivated state.

### Claim 19 (depends on 15)

The non-transitory computer readable storage medium of claim 15, wherein the instructions further cause the processing circuitry to:
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time exceeding a time threshold measured from activation of the at least one of the one or more emitters, determine the contact condition using the first temperature information; and
in accordance with a determination that the at least one of the one or more emitters are in the activated state for a period of time below the time threshold, forgo determining the contact condition of the electronic device with the user in accordance with the first temperature information.

### Claim 20 (depends on 15)

The non-transitory computer readable storage medium of claim 15, wherein the instructions further cause the processing circuitry to:
in accordance with a determination that one or more first criteria are satisfied, including a criterion that the first temperature information has not been detected within a time threshold measured from a last record of the first temperature information, update the first temperature information; and
in accordance with a determination that the one or more first criteria are not satisfied, forgo detecting the first temperature information.
