# US 12,120,480 B2 · Information processing device, wearable device, information processing method, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,480 B2 - Document ID: US12120480B2 - Status: Granted - Kind: B2 - Application number: 18/389,270 - Filed: 2023-11-14 - Published: 2024-03-07 - Granted: 2024-10-15 - Earliest claimed: 2023-11-14 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Takayuki Arakawa - Web page: https://patentgrep.com/patent/US12120480B2 ## CPC - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - G10L 25/51: for comparison or discrimination - H04R 1/1016: {Earpieces of the intra-aural type} - H04R 3/00: Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) - H04R 29/001: {for loudspeakers (H04R29/007 takes precedence)} - H04R 2460/15: Determination of the acoustic seal of ear moulds or ear tips of hearing devices - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING ## Abstract Provided is an information processing device including an acoustic information acquisition unit configured to acquire an acoustic information about a resonance in a body of a user wearing a wearable device and a wearing determination unit configured to determine whether or not the user wears the wearable device based on the acoustic information. ## Claims ### Claim 1 An information processing device comprising: a memory configured to store instructions; and a processor configured to execute the instructions to: acquire an acoustic information about a resonance in a body of a user wearing a wearable device; determine whether or not the user wears the wearable device based on a magnitude relation between a score based on the acoustic information and a first threshold; stop at least a part of functions of the wearable device after the score changes from a state where the score is greater than or equal to the first threshold to a state where the score is less than the first threshold; and not stop the at least a part of the functions of the wearable device in a case where the score changes again to be equal to or greater than the first threshold within a predetermined period of time after the score has changed to be less than the first threshold. ### Claim 2 (depends on 1) The information processing device according to claim 1, wherein the acoustic information includes an information about a resonance in a vocal tract of the user. ### Claim 3 (depends on 2) The information processing device according to claim 2, wherein whether or not the user wears the wearable device is determined based on a peak of a signal having a frequency corresponding to the resonance in the vocal tract. ### Claim 4 (depends on 1) The information processing device according to claim 1, wherein the acoustic information includes an information about a resonance in an ear canal of the user. ### Claim 5 (depends on 4) The information processing device according to claim 4, wherein whether or not the user wears the wearable device is determined based on a peak of a signal having a frequency corresponding to the resonance of the ear canal. ### Claim 6 (depends on 1) The information processing device according to claim 1, wherein the wearable device comprises a sound wave emitting unit configured to emit a sound wave toward an ear canal of the user. ### Claim 7 (depends on 6) The information processing device according to claim 6, wherein the processor is further configured to execute the instructions to control the sound wave emitting unit to emit a sound wave in a case where a sound pressure level included in the acoustic information is not sufficient for a determination. ### Claim 8 (depends on 6) The information processing device according to claim 6, wherein whether or not the user wears the wearable device is determined based on an echo time between emitting a sound wave from the sound wave emitting unit and acquiring an echo sound in the wearable device. ### Claim 9 (depends on 8) The information processing device according to claim 8, wherein the echo time is based on a round trip time of a sound wave in the ear canal of the user. ### Claim 10 (depends on 6) The information processing device according to claim 6, wherein a sound wave emitted from the sound wave emitting unit has a frequency characteristic based on a chirp signal, an M-sequence signal or a white noise. ### Claim 11 (depends on 1) The information processing device according to claim 1, wherein the processor is further configured to execute the instructions to generate a notification information to urge the user to emit a voice in a case where a sound pressure level included in the acoustic information is not sufficient for a determination. ### Claim 12 (depends on 1) The information processing device according to claim 1, wherein the wearable device is an acoustic device that is worn on an ear of the user. ### Claim 13 (depends on 12) The information processing device according to claim 12, wherein the acoustic information includes an information about a sound generated in the body of the user. ### Claim 14 (depends on 13) The information processing device according to claim 13, wherein whether or not the user wears the wearable device is determined based on a sound pressure level corresponding to a sound generated in the body of the user. ### Claim 15 (depends on 1) The information processing device according to claim 1, wherein whether or not the user wears the wearable device is determined based on the acoustic information acquired by a plurality of microphones arranged in different positions each other. ### Claim 16 An information processing method comprising: acquiring an acoustic information about a resonance in a body of a user wearing a wearable device; and determining whether or not the user wears the wearable device based on a magnitude relation between a score based on the acoustic information and a first threshold; stop at least a part of functions of the wearable device after the score changes from a state where the score is greater than or equal to the first threshold to a state where the score is less than the first threshold; and not stop the at least a part of the functions of the wearable device in a case where the score changes again to be equal to or greater than the first threshold within a predetermined period of time after the score has changed to be less than the first threshold. ### Claim 17 A non-transitory storage medium storing a program that causes a computer to perform: acquiring an acoustic information about a resonance in a body of a user wearing a wearable device; and determining whether or not the user wears the wearable device based on a magnitude relation between a score based on the acoustic information and a first threshold; stop at least a part of functions of the wearable device after the score changes from a state where the score is greater than or equal to the first threshold to a state where the score is less than the first threshold; and not stop the at least a part of the functions of the wearable device in a case where the score changes again to be equal to or greater than the first threshold within a predetermined period of time after the score has changed to be less than the first threshold.