Signal Amplifier
First Claim
1. A hearing prosthesis, comprising:
- at least one power source;
at least one stimulation component;
an output amplifier stage coupled between the at least one power source and the stimulation component, wherein the output amplifier stage is configured to amplify an electrical signal that includes audio data and to provide the stimulation component with an amplified electrical signal enabling the at least one stimulation component to deliver stimulation to a recipient to evoke perception of the audio data; and
a controller coupled to the output amplifier stage and configured to dynamically switch the output amplifier stage between first and second operating modes, wherein amplification of the electrical signal is different in each of the first and second operating modes of the output amplifier stage.
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Abstract
A hearing prosthesis circuit includes a power source, a first amplifier coupled to the power source, and a second amplifier coupled to the power source. The circuit also includes a stimulation component coupled to the first amplifier and the second amplifier. The stimulation component is configured to provide an output in accordance with an electrical signal that includes audio data. Further, the circuit includes a controller coupled to the first amplifier and the second amplifier. The controller is operable in accordance with a first operational setting to use the first amplifier to provide the electrical signal to the stimulation component and the controller is also operable in accordance with a second operational setting to use the second amplifier to provide the electrical signal to the stimulation component. Generally, the first amplifier provides greater signal amplification of the audio data than the second amplifier.
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Citations
21 Claims
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1. A hearing prosthesis, comprising:
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at least one power source; at least one stimulation component; an output amplifier stage coupled between the at least one power source and the stimulation component, wherein the output amplifier stage is configured to amplify an electrical signal that includes audio data and to provide the stimulation component with an amplified electrical signal enabling the at least one stimulation component to deliver stimulation to a recipient to evoke perception of the audio data; and a controller coupled to the output amplifier stage and configured to dynamically switch the output amplifier stage between first and second operating modes, wherein amplification of the electrical signal is different in each of the first and second operating modes of the output amplifier stage. - View Dependent Claims (2, 3, 4, 8, 9, 10, 11, 12, 13)
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- 5. The hearing prosthesis of claim 5, wherein the first operating mode is a music setting selected by the controller when the audio data includes music signals and the second operating mode is a phone setting selected by the controller when the audio data includes audio signals received from a phone.
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14. A hearing prosthesis, comprising:
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at least one power source; at least one stimulation component; an output amplifier stage coupled between the at least one power source and the stimulation component, wherein the output amplifier stage comprises first and second amplifiers selectively useable to generate an amplified electrical signal from an input signal that includes audio data; and a controller dynamically operable in accordance with a first operational setting to use the first amplifier to generate the amplified electrical signal or in accordance with a second operational setting to use the second amplifier to generate the amplified electrical signal, wherein the first amplifier provides greater signal amplification of the electrical signal than the second amplifier. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification