Electro-mechanical-acoustic transducing device
First Claim
1. An electro-mechanical-acoustic transducing device, comprising:
- An electro-mechanical-acoustic transducer having at least one resonance frequency;
a signal supplying unit for receiving an input electric signal having a predetermined frequency band including the at least one resonance frequency and for supplying the input electric signal to the electro-mechanical-acoustic transducer, the electro-mechanical-acoustic transducer converting an electric signal having the at least one resonance frequency included in the predetermined frequency band into at least one of vibration and sound; and
a frequency detector for detecting the at least one resonance frequency of the electro-mechanical-acoustic transducer and for generating a feedback electric signal having the detected at least one resonance frequency, wherein the signal supplying unit further receives the feedback electric signal from the frequency detector and supplies the input electric signal and the feedback electric signal to the electro-mechanical-acoustic transducer.
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Accused Products
Abstract
An electro-mechanical-acoustic transducing device includes: an electro-mechanical-acoustic transducer which has at least one resonance frequency, for converting an input electric signal into only vibration, or into both vibration and sound; a signal supplying unit for supplying a signal in a frequency band which includes at least one of the resonance frequencies of the electro-mechanical-acoustic transducer as the input signal of the electro-mechanical-acoustic transducer; and a frequency detector for detecting a signal component having a frequency corresponding to the mechanical resonance frequency of the electro-mechanical-acoustic transducer in an electric signal which is output from the electro-mechanical-acoustic transducer, and outputting the signal component as a part of an input signal to the signal supplying unit.
49 Citations
23 Claims
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1. An electro-mechanical-acoustic transducing device, comprising:
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An electro-mechanical-acoustic transducer having at least one resonance frequency;
a signal supplying unit for receiving an input electric signal having a predetermined frequency band including the at least one resonance frequency and for supplying the input electric signal to the electro-mechanical-acoustic transducer, the electro-mechanical-acoustic transducer converting an electric signal having the at least one resonance frequency included in the predetermined frequency band into at least one of vibration and sound; and
a frequency detector for detecting the at least one resonance frequency of the electro-mechanical-acoustic transducer and for generating a feedback electric signal having the detected at least one resonance frequency, wherein the signal supplying unit further receives the feedback electric signal from the frequency detector and supplies the input electric signal and the feedback electric signal to the electro-mechanical-acoustic transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
an antenna for receiving a call-incoming signal;
a received signal processing unit for performing a signal-processing operation for the call-incoming signal and outputting a predetermined electric signal; and
an electro-mechanical-acoustic transducing device according to claim 1, wherein a signal input condition to the electro-mechanical-acoustic transducing device is controlled by the electric signal from the received signal processing unit.
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13. A portable terminal device according to claim 12, wherein the signal which is output from the received signal processing unit is supplied as a part of the input signal of the signal supplying unit included in the electro-mechanical-acoustic transducing device.
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14. A portable terminal device according to claim 12, wherein the signal which is output from the received signal processing unit is supplied as a part of the input signal of the electro-mechanical-acoustic transducer included in the electro-mechanical-acoustic transducing device.
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15. A portable terminal device according to claim 12, wherein the electro-mechanical-acoustic transducer included in the electro-mechanical-acoustic transducing device is configured to further exhibit a function as a receiver for reproducing audio signal to a user.
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16. An electro-mechanical-acoustic transducing device according to claim 1, wherein the signal supplying unit includes an amplifier for amplifying the input electric signal and the feedback signal.
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17. An electro-mechanical-acoustic transducing device, comprising:
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an electro-mechanical-acoustic transducer structured so as to have at least two resonance frequencies and to respectively convert input electric signals having frequencies corresponding to the at least two resonance frequencies into vibration and sound;
a signal supplying unit comprising a first oscillator for oscillating a first electric signal in a frequency band including at least one of the at least two resonance frequencies of the electro-mechanical-acoustic transducer as the input electric signal of the electro-mechanical-acoustic transducer, and a second oscillator for oscillating a second electric signal at a frequency corresponding to at least one of the at least two resonance frequencies of the electro-mechanical-acoustic transducer and outputting the second electric signal as the input electric signal of the electro-mechanical-acoustic transducer;
a frequency detector for detecting a signal component having a freqency corresponding to the at least one of the at least two resonance frequencies of the electro-mechanical-acoustic transducer in an electric signal which is output from the electro-mechanical-acoustic transducer, and outputting the signal component as a part of an input signal to the signal supplying unit; and
a controller for controlling the second oscillator so as to oscillate a signal having a frequency corresponding to one of the at least two resonance frequencies of the electro-mechanical-acoustic transducer at a predetermined timing based on detection information of the frequency detector. - View Dependent Claims (18)
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19. An electro-mechanical-acoustic transducing device, comprising:
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an electro-mechanical-acoustic transducer which has at least one resonance frequency, for converting an input electric signal having a frequency corresponding to the at least one resonance frequency into only vibration, or into both vibration and sound;
a signal supplying unit comprising an oscillator for oscillating an electric signal in a frequency band including at least one of the at least one resonance frequency of the electro-mechanical-acoustic transducer, and outputting the electric signal as an input electric signal of the electro-mechanical-acoustic transducer;
a frequency detector for detecting a signal component having a frequency corresponding to the at least one resonance frequency of the electro-mechanical-acoustic transducer in an electric signal which is output from the electro-mechanical-acoustic transducer, and outputting the signal component as a part of an input signal to the signal supplying unit; and
a controller for controlling the oscillator so as to oscillate a signal having a frequency corresponding to the at least one resonance frequency of the electro-mechanical-acoustic transducer at a predetermined timing based on detection information of the frequency detector. - View Dependent Claims (20, 21, 22)
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23. An electro-mechanical-acoustic transducing device, comprising:
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an electro-mechanical-acoustic transducer which has at least one resonance frequency, for converting an input electric signal having a frequency corresponding to the at least one resonance frequency into only vibration, or into both vibration and sound;
a signal supplying unit for supplying a signal in a frequency band which includes at least one of the at least one resonance frequency of the electro-mechanical-acoustic transducer as the input electric signal of the electro-mechanical-acoustic transducer;
a frequency detector for detecting a signal component having a frequency corresponding to the at least one resonance frequency of the electro-mechanical-acoustic transducer in an electric signal which is output from the electro-mechanical-acoustic transducer, and outputting the signal component as a part of an input signal to the signal supplying unit; and
a filter for allowing a signal having a frequency corresponding to the at least one resonance frequency of the electro-mechanical-acoustic transducer to pass therethrough.
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Specification