Microphone and electronic device having the same
The present disclosure relates to microphones and electronic devices having the same. The microphone may include a housing for receiving sound signals, at least two transducers for vibrating to generate electrical signals in response to the sound signals, and a processing circuit for processing the electrical signals. Each of the at least two transducers may provide a distinctive resonance peak to the microphone.
1. A microphone comprising:
a housing for receiving sound signals;
at least two transducers for vibrating to generate electrical signals in response to the sound signals, each of the at least two transducers providing a distinctive resonance peak to the microphone;
at least one elastic element connected to one of the at least two transducers via at least one damping layer; and
a processing circuit for processing the electrical signals.
2. The microphone of claim 1 , wherein the at least two transducers are arrayed in the housing in a direction parallel to a vibration direction of the at least two transducers.
3. The microphone of claim 1 , wherein the at least two transducers are arrayed in the housing in a direction perpendicular to a vibration direction of the at least two transducers.
4. The microphone of claim 1 , wherein the electrical signals are outputted from one of the at least two transducers, and the rest of the at least two transducers transfer vibrations to the one of the at least two transducers.
5. The microphone of claim 1 , wherein the electrical signals include at least two electrical outputs of the at least two transducers, wherein each of the at least two electrical outputs of the at least two transducers is outputted from one of the at least two transducers.
6. The microphone of claim 5 , wherein the at least two electrical outputs of the at least two transducers are processed using a Positive-Negative-Negative-Positive processing mode, wherein the Positive-Negative-Negative-Positive processing mode includes:
adjusting phases of the at least two electrical outputs; and
combining the adjusted at least two electrical outputs.
7. The microphone of claim 6 , wherein the adjusting phases of the at least two electrical outputs includes:
reversing a phase of one of the at least two electrical outputs, and maintaining a phase of another one of the at least two electrical outputs.
8. The microphone of claim 5 , wherein the at least two electrical outputs are of adjacent transducers among the at least two transducers which are sorted in a descending order or an ascending order according to their resonance frequencies.
9. The microphone of claim 1 , wherein the two transducers are disposed on a same side or opposite side of the damping layer.
10. The microphone of claim 1 , wherein the at least one damping layer covers at least part of at least one surface of the transducer connected thereto.
11. The microphone of claim 10 , wherein the at least one damping layer is disposed on at least one position including an upper surface of the connected transducer, a lower surface of the connected transducer, a lateral surface of the connected transducer, or an interior of the connected transducer.
12. The microphone of claim 10 , wherein the at least one damping layer is disposed on at least one surface of the connected transducer at a predetermined angle.
13. The microphone of claim 12 , wherein the predetermined angle is 30°, 45°, 60°, or 90°.
14. The microphone of claim 10 , wherein the at least one damping layer is connected to the housing.
15. The microphone of claim 10 , wherein the at least one damping layer includes at least two damping layers, and the at least two damping layers are arranged symmetrically with respect to a center line of one of the at least two transducers.
16. The microphone of claim 1 , wherein the at least one elastic element and the at least two transducers are arrayed in the housing in a direction perpendicular to a vibration direction of the at least two transducers.
17. The microphone of claim 1 , wherein the at least one damping layer covers at least part of at least one surface of the at least one elastic element.
18. The microphone of claim 1 , wherein a width or thickness of the at least one damping layer is variable.
19. The microphone of claim 1 , wherein a structure of each of the at least two transducers includes at least one of a film, a cantilever, or a plate.
20. An electronic device comprising a microphone, wherein the microphone includes:
a housing for receiving sound signals;
at least two transducers for vibrating to generate electrical signals in response to the sound signals, each of the at least two transducers providing a distinctive resonance peak to the microphone;
at least one elastic element connected to one of the at least two transducers via at least one damping layer; and
a processing circuit for processing the electrical signals.