Hearing aid with external frequency control
First Claim
Patent Images
1. A hearing aid comprising:
- a sound transducer, amplifier means and an electro/acoustic transducer coupled in tandem, a controllable oscillator and a control circuit coupled thereto, a receiver for receiving a reference signal from a remote control independently of the sound transducer, the control circuit also being coupled to the receiver and being operative so as to regulate the frequency of the oscillator by means of the reference signal received by the receiver.
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Abstract
A hearing aid comprises a controllable oscillator, a control circuit and a receiver for receiving a reference signal from a remote control. The control circuit is coupled to the controllable oscillator and to the receiver and is constructed so as to control the frequency of a clock signal generated by the oscillator by means of the reference signal received by the receiver.
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Citations
17 Claims
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1. A hearing aid comprising:
- a sound transducer, amplifier means and an electro/acoustic transducer coupled in tandem, a controllable oscillator and a control circuit coupled thereto, a receiver for receiving a reference signal from a remote control independently of the sound transducer, the control circuit also being coupled to the receiver and being operative so as to regulate the frequency of the oscillator by means of the reference signal received by the receiver.
- View Dependent Claims (2, 3)
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4. A hearing aid comprising:
- a controllable oscillator and a control circuit coupled thereto, a receiver for receiving a reference signal from a remote control, the control circuit also being coupled to the receiver and being operative so as to regulate the frequency of the oscillator by means of the reference signal received by the receiver, wherein the control circuit can be switched between at least a first state and a second state, said control circuit being arranged so as to change, in the first state, the oscillator frequency in first frequency steps and, in the second state, in second frequency steps, the first frequency steps being larger than the second frequency steps, and wherein the reference signal comprises a first sub-signal, with the control circuit being switched into the first state during reception of the first sub-signal, and, upon completion of the reception of the first sub-signal, said control circuit being switched into the second state.
- View Dependent Claims (5, 6, 7)
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8. A hearing aid comprising:
- a controllable oscillator and a control circuit coupled thereto, a receiver for receiving a reference signal from a remote control, the control circuit also being coupled to the receiver and being operative so as to regulate the frequency of the oscillator by means of the reference signal received by the receiver, and wherein the frequency of the oscillator can be changed step-wise in accordance with a logarithmic series.
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9. A programmable hearing aid comprising:
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a sound transducer, an electro/acoustic transducer, a first signal path including amplifier means coupling the sound transducer to the electro/acoustic transducer, a programmable processor for controlling at least one operating parameter in said first signal path, a second signal path including a receiver, a control circuit and a frequency controllable oscillator that derives a clock signal for the programmable processor, wherein said receiver receives a reference signal from a remote control unit, and said control circuit regulates the clock signal frequency of the oscillator on the basis of the reference signal received by the receiver. - View Dependent Claims (10, 11)
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12. A programmable hearing aid comprising:
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a sound transducer, an electro/acoustic transducer, a first signal path including amplifier means coupling the sound transducer to the electro/acoustic transducer, a programmable processor for controlling at least one operating parameter in said first signal path, a second signal path including a receiver, a control circuit and a frequency controllable oscillator that derives a clock signal for the programmable processor, wherein said receiver receives a reference signal from a remote control unit, and said control circuit regulates the clock signal frequency of the oscillator on the basis of the reference signal received by the receiver, and wherein the reference signal is a wireless digital signal and the control circuit is switchable between first and second states as a function of a difference in frequency between the clock signal frequency and the frequency of the received referenced signal. - View Dependent Claims (13, 14)
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15. A programmable hearing aid comprising:
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a sound transducer, an electro/acoustic transducer, a first signal path including amplifier means coupling the sound transducer to the electro/acoustic transducer, a programmable processor for controlling at least one operating parameter in said first signal path, a second signal path including a receiver, a control circuit and a frequency controllable oscillator that derives a clock signal for the programmable processor, wherein said receiver receives a reference signal from a remote control unit, and said control circuit regulates the clock signal frequency of the oscillator on the basis of the reference signal received by the receiver, and wherein the control circuit further comprises, coupled in tandem to said receiver, a gate circuit, a counter, a switching circuit and a first memory means, and a second memory means is coupled to the first memory means, wherein the counter receives the clock signal of the frequency controllable oscillator. - View Dependent Claims (16)
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17. A programmable hearing aid comprising:
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a sound transducer, an electro/acoustic transducer, a first signal path including amplifier means coupling the sound transducer to the electro/acoustic transducer, a programmable processor for controlling at least one operating parameter in said first signal path, a second signal path including a receiver, a control circuit and a frequency controllable oscillator that derives a clock signal for control of the programmable processor and the control circuit, wherein said receiver receives a reference signal from a remote control unit, and said control circuit regulates the clock signal frequency of the oscillator on the basis of the reference signal received by the receiver.
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Specification
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Current AssigneeNXP B.V. (NXP Semiconductors NV)
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Original AssigneeUS Philips Corporation (Koninklijke Philips N.V.)
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InventorsDe Koning, Lambertus F. M.
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Primary Examiner(s)Woo, Stella
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Assistant Examiner(s)Dabney, P.
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Application NumberUS09/015,881Time in Patent Office1,216 DaysField of Search381/312, 381/315, 381/314, 381/320, 381/321, 381/323, 381/60, 73/585, 455/265, 455/255, 455/362, 331/57US Class Current381/315CPC Class CodesH04R 25/505 using digital signal proces...H04R 25/558 Remote control, e.g. of amp...
