Hearing aid with antenna for reception and transmission of electromagnetic signals
AssigneeOticon A/S
InventorsKare Tais Christensen, Ove Knudsen
Life of this patent
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Abstract
The invention regards a communication device which is adapted for placement in a users ear. The communication device comprises a shell part enclosing an input transducer for receiving an input signal, a signal processing device and an output N transducer for providing a signal perceivable as sound, a battery located at a surface part of the shell which is facing away from the head of the user, a transmission and reception circuit for transmission and/or reception of electromagnetic energy. According to the invention an antenna for radiating and/or receiving electromagnetic energy is provided such that it has a first surface turned towards the surroundings and a second surface located in close proximity of the battery.
Claims12
A communication device comprising:
- an input transducer for receiving an input signal;
- a signal processor for processing said input signal and producing an output signal;
- an output transducer for receiving said output signal and outputting a signal perceivable as sound;
- a transmission and reception circuit for transmission and/or reception of electromagnetic energy;
- a loop or coil antenna for radiating and/or receiving the electromagnetic energy;
- and
- a shell part enclosing the input transducer, the signal processor, the transmission and reception circuit, and the loop or coil antenna, and a battery enclosure for holding a battery,
- wherein the loop or coil antenna is configured to charge the battery when the communication device is placed in a varying magnetic field,
- wherein the communication device is configured for placement in a user's ear, and the shell part includes a frontal plate with an external surface facing away from the user's head when the communication device is placed in the user's ear, and
- wherein the loop or coil antenna is disposed under the external surface of the frontal plate and has a shape with an outer perimeter surrounding an outer perimeter of a shape defined by a projection of the battery enclosure on said external surface.
Dependencies are inferred from the claim text.