Acoustic head structure of a microphone

• US 20070165898A1
• Filed: 03/29/2006
• Published: 07/19/2007
• Est. Priority Date: 01/17/2006
• Status: Abandoned Application

• Current Assignee: Lingsen Precision Industries, Ltd.
• Original Assignee: Lingsen Precision Industries, Ltd.
• Inventors: Huang, Chin-Ching, Tien, Jiung-Yue, Tu, Min-Te
• Application Number:
  US11/391,427
• Publication Number:
  US 20070165898A1
• Time in Patent Office: Days
• US Class Current: 381/369
• CPC Class Codes: H04R 1/086 Protective screens, e.g. all weather or wind screens

Abstract

An acoustic head structure for a microphone is disclosed. It comprises a substrate, a sound-processing unit and an upper cap. The upper cap has a plurality of acoustic holes that are through-holes arranged about the upper lid. The position and shape of the acoustic holes can prevent foreign matter like dust from falling into the acoustic head structure.

Claims

1. An acoustic head structure of a microphone, comprising:

a substrate, including a circuit board;

a sound-processing unit, connected with the circuit board;

an upper lid, connected with the substrate; and

an acoustic hole, located in the flank of the upper lid.

2. The acoustic head structure of a microphone of claim 1, wherein the acoustic head structure is a rectangle.

3. The acoustic head structure of a microphone of claim 1, wherein the acoustic head structure is not a rectangle

4. The acoustic head structure of a microphone of claim 1, wherein the sound-processing unit comprises at least one sound sensor.

5. The acoustic head structure of a microphone of claim 1, wherein the sound-processing unit comprises at least one signal amplifier.

6. The acoustic head structure of a microphone of claim 1, wherein the acoustic hole is singular hole.

7. The acoustic head structure of a microphone of claim 1, wherein the acoustic hole is a plurality of holes.

8. The acoustic head structure of a microphone of claim 1, wherein the acoustic holes are in the form of a horn.

9. The acoustic head structure of a microphone of claim 1, wherein the acoustic holes are in the form of semi-conical horns.

10. The acoustic head structure of a microphone of claim 1, wherein the acoustic holes are in the form of a declining horn.

11. The acoustic head structure of a microphone of claim 1, wherein the acoustic holes are rectangular.

12. The acoustic head structure of a microphone of claim 1, wherein is the acoustic holes are located to one side of the microphone.

13. The acoustic head structure of a microphone of claim 1, wherein the acoustic holes are located opposite to each other about the microphone.