1. Field of the Invention
Two Inventions:
The present invention relates to acoustic boot served as guide tube which insert between an electronic device with plural acoustic openings on its case and microphone array disposed in housing inside the electronic device.
The design of microphone array housing to fit the acoustic boot to achieve a better airtight and phase match for the electronic device.
2. Description of the Related Art
Microphone arrays using two or more microphones are getting more and more popular nowadays. Due to more acoustic information received, it can provide better performance compared with conventional single microphone solutions. CMOS-MEMS (Micro-Electro-Mechanical Systems) technology enables Microphone arrays be fabricated in a single chip and single package compatible to the size and pin out of a single MEMS microphone. In this case, the center to center distance between two microphone membrane in housing can be 2 mm or less. But, for SAM (Small Array Microphone) voice processing applications, the minimum distance between the acoustic openings on the device surface is larger than 5 mm. This invention is to extend the distance between two sound inlets of microphone housing to larger distance of two acoustic opening on the device case by acoustic boot inserted in between.
An electronic device is provided. The electronic device with two acoustic openings on its case
Utilizing the embodiments of the invention, the microphone effective distance can be increased by using different directions of the ducts
A detailed description is given in the following embodiments with reference to the accompanying drawings.
The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
In the embodiment of the invention, the first and second microphones can be integrated into a Small Array Microphone (SAM) by MEMS technology.
The acoustic boot 20 is detachably wedged in the wedging portion 13 (
With reference to
In this embodiment, the case 10 has an upper surface 16, and the first acoustic opening 11 and the second acoustic opening 12 are formed on the upper surface 16
With reference to
With reference to
In one embodiment of the invention, the sound ports of the ducts may have a bigger or equal diameter compared with the opening on the case, in order to get sufficient sound energy. With reference to
The electronic device can be a mobile phone, notebook, tablet or other portable electronic device. The electronic device can also be a television, computer or other electronic device.
Use of ordinal terms such as “first”, “second”, “third”, etc., in the claims to modify a claim element does not by itself connote any priority, precedence, or order of one claim element over another or the temporal order in which acts of a method are performed, but are used merely as labels to distinguish one claim element having a certain name from another element having a same name (but for use of the ordinal term) to distinguish the claim elements.
While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
This application claims the benefit of U.S. Provisional Application No. 61/734,035, filed Dec. 6, 2012, the entirety of which is incorporated by reference herein.
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The Office Action issued in U.S. Appl. No. 13/901,081 on Jul. 2, 2014. |
Number | Date | Country | |
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20140161295 A1 | Jun 2014 | US |
Number | Date | Country | |
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61734035 | Dec 2012 | US |