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US 2006/0067544 A1Published application
Method and apparatus for powering a listening device
AssigneeKnowles Electronics, LLC
InventorPaul Moraghan
Life of this patent
Estimating the term…
Abstract
A device, such as a hearing aid, includes a microphone, an amplifier and a receiver (e.g., a speaker). A charge pump and voltage regulator circuit couples to a power source for the listening device. The charge pump and voltage regulator circuit generates a larger, smaller or same voltage output as compared to a nominal voltage of the power source for providing a proper operating voltage to the listening device.
Claims21
A device comprising:
- a microphone having an acoustic input and a microphone output, an amplifier having a signal input coupled to the microphone output and an amplifier output;
- a receiver having an input coupled to the amplifier output and an acoustic output;
- a power source;
- and
- a charge pump circuit coupling the power source to at least one of the amplifier, the microphone and the receiver.
2 more elements
A method of powering a device, the device comprising a microphone having an acoustic input and a microphone output;
- an amplifier having a signal input coupled to the microphone output and an amplifier output;
- a receiver having an input coupled to the amplifier output and an acoustic output;
- and a power source, the method comprising:
- coupling a charge pump circuit between the power source and at least one of the preamplifier, the amplifier, the microphone, and the receiver.
1 more element
A hearing aid comprising:
- a microphone having an acoustic input and a microphone output, an amplifier having a signal input coupled to the microphone output and an amplifier output;
- a receiver having an input coupled to the amplifier output and an acoustic output;
- a power source;
- and
- a charge pump circuit coupling the power source to at least one of the amplifier, the microphone and the receiver.
2 more elements
Dependencies are inferred from the claim text.