# US 12,601,642 B2 · Headset > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,642 B2 - Document ID: US12601642B2 - Status: Granted - Kind: B2 - Application number: 18/284,854 - Filed: 2022-03-24 - Published: 2024-06-06 - Granted: 2026-04-14 - Earliest claimed: 2021-03-31 - Assignees: Foster Electric Company, Limited - Applicants: Foster Electric Company, Limited - Inventors: Yo Hibino; Yasuo Kawana; Hikaru Watanabe - Web page: https://patentgrep.com/patent/US12601642B2 ## CPC - G01K 13/20: Clinical contact thermometers for use with humans or animals - A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20) - A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles} - G01K 1/026: {arrangements for monitoring a plurality of temperatures, e.g. by multiplexing} - G01K 1/14: Supports; Fastening devices; Arrangements for mounting thermometers in particular locations - G01K 1/16: Special arrangements for conducting heat from the object to the sensitive element - G01K 7/42: Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature - G01K 2213/00: Temperature mapping - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A headset includes: a hollow housing to be worn at an ear of a user; a cylindrical ear canal insertion part that is a portion of the housing, and that is provided at a portion of the housing at a side of an ear canal; a thermistor for a headset, provided at the ear canal side inside the housing; a temperature sensor for a headset on a main substrate, provided at an opposite side from the ear canal side inside the housing; and a calculation unit that measures a body temperature of the user based on an output of the thermistor and an output of the temperature sensor. ## Claims ### Claim 1 A headset, comprising: a hollow housing to be worn at an ear of a user; a cylindrical ear canal insertion part that is a portion of the housing, and that is provided at a portion of the housing at a side of an ear canal; a first sensor for a headset, provided at the ear canal side inside the housing in a space communicating with the external auditory canal space; a second sensor for a headset, provided at an opposite side from the ear canal side inside the housing at a location not in contact with the housing; and a calculation unit that measures a body temperature of the user based on an output of the first sensor and an output of the second sensor, wherein the calculation unit: estimates a room temperature that is a temperature outside the housing from the output of the first sensor or the second sensor under a predetermined condition wherein, when a temperature measured from the output of the first sensor and a temperature measured from the output of the second sensor are equal, said temperature is estimated as a room temperature outside the housing, and after waiting a predetermined time, the calculation unit acquires the output of the first sensor and the output of the second sensor, and measures the body temperature of the user from a first temperature difference between the estimated room temperature and a temperature measured from the output of the first sensor, and a second temperature difference between a temperature measured from the output of the second sensor and the temperature measured from the output of the first sensor. ### Claim 2 (depends on 1) The headset of claim 1, wherein: the first sensor includes a proximity sensor for detecting a wearing state or a thermistor for measuring a temperature inside the housing, and the second sensor includes a sensor mounted at a main substrate or a touch pad for detecting an operation by the user. ### Claim 3 (depends on 1) The headset of claim 1, wherein: the first sensor comprises a plurality of sensors, the second sensor comprises a plurality of sensors, and the calculation unit: selects a combination of any one of the plurality of sensors of the first sensor and any one of the plurality of sensors of the second sensor, based on a temperature measured from an output of the plurality of sensors of the first sensor and a temperature measured from an output of the plurality of sensors of the second sensor, and measures the body temperature of the user based on a temperature measured from an output of sensors included in the selected combination. ### Claim 4 (depends on 3) The headset of claim 3, wherein the calculation unit: estimates a room temperature that is a temperature outside the housing, from the output of the first sensor or the second sensor under a predetermined condition, obtains the output of the first sensor and the output of the second sensor, selects the combination from a ratio of a first temperature difference between the estimated room temperature calculated for each combination of any one of the plurality of sensors of the first sensor and any one of the plurality of sensors of the second sensor, and a temperature measured from the output of the first sensor, and a second temperature difference between a temperature measured from the output of the second sensor and the temperature measured from the output of the first sensor, and measures the body temperature of the user using the temperature measured from an output of a sensor included in the selected combination and a parameter established in advance for the combination. ### Claim 5 (depends on 4) The headset of claim 4, wherein the calculation unit measures the body temperature of the user based on the first temperature difference, the second temperature difference, and the temperature measured from the output of the first sensor, in the selected combination, at a time of measuring the body temperature of the user. ### Claim 6 A headset, comprising: a hollow housing to be worn at an ear of a user; a cylindrical ear canal insertion part that is a portion of the housing, and that is provided at a portion of the housing at a side of an ear canal; a first sensor for a headset, provided at the ear canal side inside the housing; a second sensor for a headset, provided at an opposite side from the ear canal side inside the housing; and a calculation unit that measures a body temperature of the user based on an output of the first sensor and an output of the second sensor, wherein the first sensor comprises a plurality of sensors, the second sensor comprises a plurality of sensors, and the calculation unit: selects a combination of any one of the plurality of sensors of the first sensor and any one of the plurality of sensors of the second sensor, based on a temperature measured from an output of the plurality of sensors of the first sensor and a temperature measured from an output of the plurality of sensors of the second sensor, measures the body temperature of the user based on a temperature measured from an output of a sensor included in the selected combination, estimates a room temperature that is a temperature outside the housing from the output of the first sensor or the second sensor under a predetermined condition, obtains the output of the first sensor and the output of the second sensor, selects the combination from a ratio of a first temperature difference between the estimated room temperature calculated for each combination of any one of the plurality of sensors of the first sensor and any one of the plurality of sensors of the second sensor, and a temperature measured from the output of the first sensor, and a second temperature difference between a temperature measured from the output of the second sensor and the temperature measured from the output of the first sensor, and measures the body temperature of the user using the temperature measured from an output of sensors included in the selected combination and a parameter established in advance for the combination, wherein the calculation unit: estimates a room temperature that is a temperature outside the housing from the output of the first sensor or the second sensor under a predetermined condition wherein, when a temperature measured from the output of the first sensor and a temperature measured from the output of the second sensor are equal, said temperature is estimated as a room temperature outside the housing, and after waiting a predetermined time, the calculation unit acquires the output of the first sensor and the output of the second sensor, and measures the body temperature of the user from a first temperature difference between the estimated room temperature and a temperature measured from the output of the first sensor, and a second temperature difference between a temperature measured from the output of the second sensor and the temperature measured from the output of the first sensor. ### Claim 7 (depends on 6) The headset of claim 6, wherein: the first sensor includes a proximity sensor for detecting a wearing state or a thermistor for measuring a temperature inside the housing, and the second sensor includes a sensor mounted at a main substrate or a touch pad for detecting an operation by the user. ### Claim 8 (depends on 7) The headset of claim 7, wherein the calculation unit measures the body temperature of the user based on the first temperature difference, the second temperature difference, and the temperature measured from the output of the first sensor, in the selected combination, at a time of measuring the body temperature of the user.