Hearing aid with an antenna
First Claim
Patent Images
1. A hearing aid comprising:
- a signal processor;
a wireless communications unit, the wireless communications unit being connected to the signal processor; and
an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point;
wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point;
wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid;
wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid;
wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end;
wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end;
wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and
wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; and
wherein the first antenna end has a zero current during an operation of the antenna.
2 Assignments
0 Petitions
Accused Products
Abstract
A hearing aid includes: a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; and wherein the antenna has a first resonant frequency and a second resonant frequency.
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Citations
21 Claims
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1. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the first antenna end has a zero current during an operation of the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the second antenna end has a zero current during an operation of the antenna.
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14. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the first antenna end has infinite impedance.
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15. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the second antenna end has infinite impedance.
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16. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the first antenna end is electrically isolated.
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17. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; wherein the first branch has a first length d1 measured along a profile of the first branch from the excitation point to the first antenna end; wherein the second branch has a second length d2 measured along a profile of the second branch from the excitation point to the second antenna end; and wherein d1 and d2 satisfy the below criteria;
d2>
d1, and 0<
|(d1−
d2)/d2|<
0.25; andwherein the second antenna end is electrically isolated.
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18. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; and wherein the first antenna end has a zero current during an operation of the antenna. - View Dependent Claims (19)
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20. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; and wherein the first antenna end has infinite impedance.
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21. A hearing aid comprising:
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a signal processor; a wireless communications unit, the wireless communications unit being connected to the signal processor; and an antenna for electromagnetic field emission and electromagnetic field reception, the antenna being connected to the wireless communications unit, the antenna having an excitation point; wherein a first branch of the antenna extends from the excitation point and a second branch of the antenna extends from the excitation point; wherein at least a part of the first branch extends in a first direction that corresponds with a longitudinal axis of the hearing aid; wherein the second branch has a first portion extending in a second direction that corresponds with the longitudinal axis of the hearing aid, and a second portion forming an angle relative to the longitudinal axis of the hearing aid; wherein the first branch of the antenna has a first antenna end, and the second branch of the antenna has a second antenna end; and wherein the first antenna end is electrically isolated.
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Specification