# US 11,122,352 B2 · Wireless earphone > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,352 B2 - Document ID: US11122352B2 - Status: Granted - Kind: B2 - Application number: 16/622,238 - Filed: 2019-05-20 - Published: 2020-04-02 - Granted: 2021-09-14 - Earliest claimed: 2018-06-05 - Assignees: Goertek Inc. - Applicants: Goertek Inc. - Inventors: Shuang Chen; Yuge Zhu; Tianrong Dai; Hongmei Wang; Lin Qi - Web page: https://patentgrep.com/patent/US11122352B2 ## CPC - H04R 1/1016: {Earpieces of the intra-aural type} - A61B 5/6817: {Ear canal} - A61B 5/6843: {Monitoring or controlling sensor contact pressure} - H04R 1/1025: Accumulators specially adapted for earpieces; Arrangements specially adapted for charging thereof - H04R 1/1041: {Mechanical or electronic switches, or control elements (switches in general H01H)} - H04R 1/1083: {Reduction of ambient noise (active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06)} - A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches - H04R 2420/07: Applications of wireless loudspeakers or wireless microphones - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A wireless earphone comprising an in-ear portion which is in contact with a human ear when the wireless earphone is worn. The in-ear portion comprises a wearing surface which couples the human ear canal when the wireless earphone is worn. The in-ear portion is provided with a wearing detection sensor, a sound venting hole and a contact group which are all disposed on the wearing surface. The wearing detection sensor, the sound venting hole and the contact group are all disposed on the wearing surface of the in-ear portion coupling the human ear canal, so that the wearing detection sensor can directly contact the skin of the human body when the earphone is worn, and thus the wearing detection sensor is improved. ## Claims ### Claim 1 A wireless earphone, comprising an in-ear portion which is in contact with a human ear when the wireless earphone is worn, wherein the in-ear portion comprises a wearing surface which couples an human ear canal when the wireless earphone is worn, wherein the wearing surface is flat; the in-ear portion is provided with a wearing detection sensor, a sound venting hole and a contact group which are all disposed on the wearing surface; wherein the wearing detection sensor, the sound venting hole and the contact group are all disposed on the flat wearing surface which can directly contact skin of a human body when the earphone is worn; wherein the wearing detection sensor is disposed at a position near the center of the wearing surface, and the contact group is disposed on a side of the wearing detection sensor to be spaced apart from the sound venting hole. ### Claim 2 (depends on 1) The wireless earphone according to claim 1, wherein the contact group comprises a charging contact for connecting a charging device to charge the wireless earphone, and a communication contact for connecting the charging device and performing information transmission. ### Claim 3 (depends on 1) The wireless earphone according to claim 1, wherein the wireless earphone is further provided therein with an acceleration sensor, the acceleration sensor and the wearing detection sensor are connected respectively to a controller in the wireless earphone, and the controller receives detection signals of the acceleration sensor and the wearing detection sensor and uses them in wearing detection. ### Claim 4 (depends on 1) The wireless earphone according to claim 1, wherein a sound emitting hole is provided on a side of the in-ear portion, and the sound venting hole is disposed on a side of the wearing surface which is close to the sound emitting hole. ### Claim 5 (depends on 1) The wireless earphone according to claim 1, wherein the wireless earphone further comprises a middle frame portion and a rear casing portion; the casings of the in-ear portion, the middle frame portion, and the rear case portion are connected together to form an outer casing of the wireless earphone; a curved transition region which is curved inward is provided at the boundary between a front end of the middle frame portion and the in-ear portion; the diameter of the middle frame portion gradually increases rearward, and the cross-sectional area of the rear end of the middle frame portion is larger than the maximum cross-sectional area of the in-ear portion; and the rear casing portion has a flat truncated cone shape and covers the rear end of the middle frame portion. ### Claim 6 (depends on 5) The wireless earphone according to claim 5, wherein a surface of the rear case portion is provided with a capacitive touch panel. ### Claim 7 (depends on 2) The wireless earphone according to claim 2, wherein the wireless earphone is further provided therein with a battery, a controller and a Bluetooth chip. ### Claim 8 (depends on 7) The wireless earphone according to claim 7, wherein the contact group uses Pogopin probes, and comprises two charging contact Pogopin probes and one communication contact Pogopin probe, and the communication contact Pogopin probe is connected to the Bluetooth chip through circuits inside the wireless earphone to transmit information. ### Claim 9 (depends on 1) The wireless earphone according to claim 1, wherein the wireless earphone further comprises a calling microphone and a noise reduction microphone.