Contact hearing systems, apparatus and methods
The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.
1. A hearing aid system comprising:
a lateral ear canal assembly comprising a first transceiver including a first coil;
a medial ear canal assembly comprising a second transceiver including a second coil, wherein the first coil is adapted to inductively couple to the second coil;
a vibratory load connected to the second coil and adapted to vibrate in response to signals transmitted from the first coil to the second coil through inductive coupling;
a power control circuit connected between the second coil and the vibratory load; and
an energy storage element connected to the power control circuit, wherein the power control circuit is configured to collect and store energy with the energy storage element when the signals transmitted from the first coil to the second coil exceed a threshold value.
2. The hearing aid system of claim 1 , wherein the energy storage element is a capacitor.
3. The hearing aid system of claim 1 , wherein the energy storage element is a rechargeable battery.
4. The hearing aid system of claim 1 , wherein the power control circuit is configured to collect and store energy with the energy storage element when the signals transmitted from the first coil to the second coil drop below a threshold value.
5. The hearing aid system of claim 1 , wherein the medial ear canal assembly includes a current sensor adapted to measure current in the second coil.
6. The hearing aid system of claim 1 , wherein the medial ear canal assembly includes a voltage sensor adapted to measure voltage across the second coil.
7. The hearing aid system of claim 1 , further comprising a rectifying circuit connected between an output of the second coil and the vibratory load.
8. The hearing aid system of claim 1 , wherein the vibratory load is a transducer.
9. The hearing aid system of claim 8 , wherein the transducer is a balanced armature transducer.
10. The hearing aid system of claim 1 , wherein the vibratory load is configured to be mechanically coupled to a tympanic membrane of a user.
11. The hearing aid system of claim 1 , wherein the lateral ear canal assembly is configured to be separated from the medial ear canal assembly by air when the lateral ear canal assembly and the medial ear canal assembly are both placed in the ear canal of a user.
12. The hearing aid system of claim 1 , wherein the lateral ear canal assembly is configured to be positioned in the ear canal of a user.
13. The hearing aid system of claim 1 , wherein the medial ear canal assembly is configured to be positioned to contact a tympanic membrane of a user.
14. The hearing aid system of claim 1 , wherein a transmission path between the first coil and the second coil comprises air.
15. The hearing aid system of claim 14 , wherein the air is in the ear canal of a user of the hearing aid system.
16. The hearing aid system of claim 1 , wherein a transmission path between the first coil and the second coil comprises a line of sight transmission path.
17. The hearing aid system of claim 1 , wherein one or more of the first or second coils is an elongated coil, a stacked coil, or comprises a wound inductor.
18. The hearing aid system of claim 1 , wherein the first coil is wound around a first core and the second coil is wound around a second core.
19. The hearing aid system of claim 18 , wherein one or more of the first or second cores comprises air.
20. The hearing aid system of claim 18 , wherein one or more of the first or second cores comprises a magnetic material.
21. The hearing aid system of claim 18 , wherein one or more of the first core or the second core has a substantially fixed diameter along at least a portion of a length thereof.
22. The hearing aid system of claim 1 , wherein the medial ear canal assembly further comprises one or more sensors configured to generate data about one or more of a function of the vibratory load, a state of the energy storage element, a biometric of a user, or a physiological characteristic of the user.
23. The hearing aid system of claim 22 , wherein the one or more sensors are configured to transmit the generated data to at least the lateral ear canal assembly.