# US 10,313,807 B2 · Hearing device including antenna unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,313,807 B2 - Document ID: US10313807B2 - Status: Granted - Kind: B2 - Application number: 15/947,652 - Filed: 2018-04-06 - Published: 2018-08-09 - Granted: 2019-06-04 - Earliest claimed: 2015-06-24 - Assignees: Oticon A/S - Applicants: Oticon A/S - Inventors: Poul Henriksen; Jens Troelsen - Web page: https://patentgrep.com/patent/US10313807B2 ## CPC - H04R 25/554: {using a wireless connection, e.g. between microphone and amplifier or using Tcoils} - H01Q 1/273: {Adaptation for carrying or wearing by persons or animals} - H04R 25/602: {of batteries} - H04R 25/65: {Housing parts, e.g. shells, tips or moulds, or their manufacture} - H04R 25/652: {Ear tips; Ear moulds (hybrid ear moulds or post-processing thereof for their customisation H04R25/659)} - H01Q 1/44: using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) - H04R 2225/025: In the ear hearing aids [ITE] hearing aids - H04R 2225/51: Aspects of antennas or their circuitry in or for hearing aids - 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) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A hearing aid device having an antenna unit is disclosed. The hearing aid device comprises a transmission line connecting a communication unit and the antenna unit, or at least being part of a connection between them. The antenna unit is at least partly embedded in a battery drawer of the hearing aid device. ## Claims ### Claim 1 A hearing aid device comprising a housing configured to be positioned at least partly in the ear canal of a wearer, in which a battery drawer for accommodating a circular battery is mounted pivotally and the battery drawer being operable between a closed state and an open state, wherein the housing includes a faceplate arranged to face towards the environment, the hearing aid device comprises an antenna unit, a part of the antenna unit being partly embedded in the battery drawer, wherein the part of the antenna unit in the battery drawer has a curvature corresponding to the curvature of the battery, wherein, when a circular battery is positioned in the battery drawer, at least a part of the embedded antenna unit is configured to follow a part of the circular battery where a constant distance is maintained between them, and the hearing aid device further comprises a wireless interface in electrical communication with the antenna unit. ### Claim 2 (depends on 1) The hearing aid device according to claim 1, wherein the hearing aid device further comprises a battery spring and an electronic component mounted on a substrate located in the hearing aid housing, and the battery spring and/or battery and/or electronic component mounted on the substrate located in the hearing aid housing is a part of the antenna unit. ### Claim 3 (depends on 1) The hearing aid device according to claim 1, wherein the battery drawer has a part exposed to the environment and a part enclosed by the housing when the battery drawer is in the closed state, and the embedded antenna is arranged in the part of the battery drawer exposed to the environment when the battery drawer is in the closed state. ### Claim 4 (depends on 1) The hearing aid device according to claim 1, wherein a ratio between the width of the embedded antenna unit and the height of the circular battery is in the range of 1:1 to 1:4. ### Claim 5 (depends on 1) The hearing aid device according to claim 1, wherein the hearing aid device further comprises a balun and/or matching network between the wireless interface and the embedded antenna unit. ### Claim 6 (depends on 1) The hearing aid device according to claim 1, wherein the where holding elements are provided in the battery drawer for holding the battery on the circular circumference and wherein a part of the embedded antenna unit is included in one or more of the holding elements. ### Claim 7 (depends on 1) The hearing aid device according to claim 1, wherein the embedded antenna has a width in the range of 1/20th to 1/10th of the operational wavelength. ### Claim 8 (depends on 1) The hearing aid according to claim 1 wherein a part of the antenna is disposed in the side of the battery drawer facing the circular battery. ### Claim 9 (depends on 1) The hearing aid device according to claim 1, wherein the operational frequency of the embedded antenna is in the range 2 to 6 GHz, such as around 2.4 GHz, such as around 5 GHz. ### Claim 10 (depends on 1) The hearing aid device according to claim 1, wherein the battery drawer includes a metallic layer, either embedded in the battery drawer or disposed in a surface there of, where the embedded antenna unit is positioned further towards the environment and the metallic layer is positioned further towards the ear canal. ### Claim 11 (depends on 1) The hearing aid device according to claim 1, further comprising a transmission line connecting the communication unit and the embedded antenna unit, the transmission line configured to transfer a signal from the communication unit to the embedded antenna unit and/or from the embedded antenna unit to the communication unit, so as to minimize parasitic effects on the antenna unit, wherein at least part of the transmission line is at least partly shielded. ### Claim 12 (depends on 11) The hearing aid device according to claim 11, wherein the transmission line is terminated at a battery spring and/or battery inside the housing. ### Claim 13 (depends on 11) The hearing aid device according to claim 11, wherein the transmission line is or at least includes a coax cable, microstrip line, a strip line, coupled lines, a twisted line pair, a flex print or a combination thereof. ### Claim 14 (depends on 13) The hearing aid device according to claim 13, wherein the transmission line is a coaxial cable and the shield of the coaxial cable is terminated at the battery. ### Claim 15 (depends on 1) The hearing aid device according to claim 1, wherein the hearing aid device further comprises an inductive unit configured to provide inductive communication to an external device.