Hearing aid radio power supply
First Claim
1. A hearing aid comprising:
- an input transducer configured to output an audio signal based on a signal applied to the input transducer;
a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal;
an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system;
a wireless communication unit configured to communicate wirelessly with another device;
an energy storage unit coupled to supply the wireless communication unit with power; and
a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply;
wherein an absolute value of an output impedance of the current limiting unit is larger than an absolute value of an output impedance of the energy storage.
2 Assignments
0 Petitions
Accused Products
Abstract
A hearing aid includes: an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; and a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply.
24 Citations
27 Claims
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1. A hearing aid comprising:
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an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; and a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply; wherein an absolute value of an output impedance of the current limiting unit is larger than an absolute value of an output impedance of the energy storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A hearing aid comprising:
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an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; and a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply; wherein the current limiting unit comprises a resistor that is a physical electrical component, the resistor being coupled in series between the power supply and the energy storage unit.
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19. A hearing aid comprising:
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an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; a current limiting unit coupled to the energy storage unit, the current limiting unit configured to lower a peak current provided to the energy storage unit; and a switched voltage converter coupled between the power supply and the energy storage unit for providing a voltage for the wireless communication unit that is different from a voltage of a power supply configured to provide energy for the energy storage unit; wherein (1) an absolute value of an output impedance of the current limiting unit is larger than an absolute value of an output impedance of the energy storage, and/or (2) the current limiting unit has a resistance that corresponds with a peak current for the wireless communication unit. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A hearing aid comprising:
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an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; a current limiting unit coupled to the energy storage unit; and a switched voltage converter coupled between the power supply and the energy storage unit for providing a voltage for the wireless communication unit that is different from a voltage of a power supply configured to provide energy for the energy storage unit; wherein the current limiting unit comprises a resistor that is a physical electrical component, the resistor being coupled in series between the power supply and the energy storage unit.
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26. A hearing aid comprising:
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an input transducer configured to output an audio signal based on a signal applied to the input transducer; a processor configured to compensate a hearing loss of a user of the hearing aid and output a hearing loss compensated audio signal; an output transducer configured to output an auditory output signal based on the hearing loss compensated audio signal, wherein the auditory output signal is to be received by a human auditory system; a wireless communication unit configured to communicate wirelessly with another device; an energy storage unit coupled to supply the wireless communication unit with power; and a current limiting unit coupled for control of replenishment of the energy storage unit with energy from a power supply; wherein the current limiting unit has a resistance that corresponds with a peak current for the wireless communication unit. - View Dependent Claims (27)
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Specification