Hearing device and method of operating the hearing device
AssigneeSivantos Pte. Ltd.
InventorsJohannes Brendel, Gerhard Pfannenmueller, Ulrich Schaetzle
Life of this patent
Estimating the term…
Abstract
A hearing device, in particular hearing aid, contains a transmitter circuit for wireless signal transmission. The transmitter circuit contains an electrical resonant circuit having at least one controllable semiconductor switch, at least one capacitor and a transmitter coil. The at least one semiconductor switch is driven by a pulse phase modulator.
Claims12
A hearing device, comprising:
- a transmitter circuit for wireless signal transmission, said transmitter circuit having an electrical resonant circuit with at least one controllable semiconductor switch, at least one capacitor connected to said at least one controllable semiconductor switch, a pulse phase modulator connected to said at least one controllable semiconductor switch, and a transmitter coil connected to said at least one capacitor, said at least one controllable semiconductor switch being driven by said pulse phase modulator.
A method for operating a hearing device having a transmitter circuit for wireless signal transmission, the transmitter circuit having an electrical resonant circuit with at least one controllable semiconductor switch, at least one capacitor connected to the at least one controllable semiconductor switch, a pulse phase modulator connected to the at least one controllable semiconductor switch, and a transmitter coil connected to the at least one capacitor, the at least one controllable semiconductor switch being driven by the pulse phase modulator, which comprises the steps of:
- generating via the transmitter circuit a transmission signal for a wireless signal transmission;
- disconnecting the transmitter coil from the at least one capacitor at a first point in time;
- and
- connecting the transmitter coil to the at least one capacitor again at a later second point in time when a desired phase angle of the electrical resonant circuit is attained.
Dependencies are inferred from the claim text.