Controlling a link for different load conditions
AssigneeCochlear Limited
InventorsAndrew Fort, Werner Meskens
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to devices, systems, and methods for supporting different load conditions in a data/power link. In one example, a device includes a transformer that has a first tap with a first turns ratio and a second tap with a second turns ratio. The device further includes electronics and circuitry. The circuitry is configured to selectively couple the electronics to the first tap of the transformer for a first application and to couple the electronics to the second tap of the transformer for a second application.
Claims21
A hearing prosthesis, comprising:
- a transmitter circuit configured to transmit wireless signals to a receiver circuit over a wireless communication link;
- and
- a signal generator configured to operate in first and second modes to generate electrical signals useable to drive the transmitter circuit to transmit the wireless signals,
- wherein the signal generator includes a frame controller configured to set a first duty cycle of the electrical signals to drive the transmitter circuit in the first mode and to set a second duty cycle to drive the transmitter circuit in the second mode, and wherein the first and second duty cycles set for each of the first and second modes, respectively, are selected based on one or more conditions of the wireless communication link when transmitting wireless signals in the first and second modes, respectively.
A hearing prosthesis, comprising:
- a primary coil;
- and
- a signal generator coupled to the primary coil and configured to energize the primary coil to transmit signals to a secondary coil,
- wherein the signal generator is configured to energize the primary coil to transmit electrical signals to the secondary coil over an inductive link at a first duty cycle for operation in a first mode and to energize the primary coil to transmit electrical signals over the inductive link to the secondary coil at a second duty cycle for operation in a second mode,
- wherein the first and second duty cycles are different from one another and are set based on at least one of a load condition or a coupling factor of the inductive link when transmitting electrical signals in each of the first and second modes.
A method, comprising:
- generating, with a signal generator of an external unit of a hearing prosthesis, oscillating electrical signals in accordance with a first and second modes;
- energizing a transmitter circuit with the oscillating electrical signals generated in accordance with the first and second modes to transmit the electrical signals generated in accordance with the first and second modes to a receiver circuit disposed in an implantable unit of the hearing prosthesis via an inductive link coupling the transmitter circuit to the receiver circuit;
- and
- setting a duty cycle of the oscillating electrical signals in each of the first and second modes based on one or more conditions of the inductive link when transmitting the electrical signals in the first and second modes, respectively.
Dependencies are inferred from the claim text.