MICROPHONE MOUNTING STRUCTURE OF MOBILE TERMINAL AND USING METHOD THEREOF

• US 20130343572A1
• Filed: 06/24/2013
• Published: 12/26/2013
• Est. Priority Date: 06/25/2012
• Status: Active Grant

• Current Assignee: British Telecommunications PLC (BT Group PLC)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Keansub, SONG, Hosung, LEE, Yonghee, SON, Youngjoo, KIM, Joontae
• Granted Patent: US 9,319,786 B2
• Time in Patent Office: Days
• US Class Current: 381/92
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H04R 1/406 microphones
• CPC Class Codes: H04R 2410/05 Noise reduction with a separate noise microphone
• CPC Class Codes: H04R 2499/11 Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
• CPC Class Codes: H04R 3/005 for combining the signals of two or more microphones specially adapted for hearing aids H04R25/407

Abstract

Disclosed are a microphone mounting structure of a mobile terminal, capable of capturing a sound generated from a subject in an optimum manner while capturing an image and reproducing the captured image, and a using method thereof. In the present invention, a first microphone and a second microphone are arranged on one side surface of a terminal body, in a spaced manner from each other on different axes, so that they can be used in a sound capturing mode. Three or more microphones are arranged on a plurality of surfaces of the terminal body, at various intervals, by interworking with various situation changes. Then, the number of microphones to be used for capturing a sound, and a microphone combination are selected according to a user'"'"'s behavior scenario. Under such configuration, an optimum audio zooming function can be implemented.

Claims

1. A microphone mounting structure of a mobile terminal, comprising:

a first microphone mounted to one side surface of a body; and

a second microphone arranged on a different axis from the first microphone, and spaced from the first microphone in directions of a horizontal axis and a vertical axis by a prescribed distance.

2. The microphone mounting structure of claim 1, wherein both of the first microphone and the second microphone are arranged on a rear surface of the body.

3. The microphone mounting structure of claim 1, wherein the prescribed distance comprises the same distance or a different distance, and

wherein the same distance is 1.45 cm based on a sampling rate of 22.05 KHz.

4. The microphone mounting structure of claim 1, wherein the first microphone and the second microphone are arranged at a right side or a left side of a camera.

5. The microphone mounting structure of claim 1, wherein if the first microphone is positioned on a horizontal axis based on a user, the second microphone is positioned on a vertical axis, at an upper or lower right side based on the first microphone, at an angle of 45°

.

6. The microphone mounting structure of claim 1, wherein if the first microphone is positioned on a vertical axis based on a user, the second microphone is positioned on a horizontal axis, at an upper or lower right side based on the first microphone, at an angle of 45°

.

7. The microphone mounting structure of claim 1, wherein the first microphone and the second microphone are arranged on different surfaces of the body.

8. The microphone mounting structure of claim 7, wherein the first microphone is arranged on a rear surface of the body, and the second microphone is arranged on an upper surface or a front surface of the body.

9. The microphone mounting structure of claim 7, wherein the first microphone is arranged on an upper surface of the body, and the second microphone is arranged on a rear surface or a right side surface of the body.

10. The microphone mounting structure of claim 7, wherein the first microphone is arranged on a front surface of the body, and the second microphone is arranged on a rear surface of the body.

11. The microphone mounting structure of claim 7, wherein the first microphone is arranged on a rear surface of the body, and the second microphone is arranged on a right side surface of the body.

12. The microphone mounting structure of claim 7, wherein the first microphone is arranged on a left side surface of the body, and the second microphone is arranged on a rear surface or an upper surface of the body.

13. The microphone mounting structure of claim 1, wherein a camera is arranged within a region formed by lines which pass through the first microphone and the second microphone in directions of the horizontal axis and the vertical axis.

14. The microphone mounting structure of claim 13, wherein an optimum position of the camera is the center of a straight line which connects the first microphone and the second microphone with each other.

15. A method for using microphones of a mobile terminal, the method comprising:

arranging three or more microphones at a body, in a spaced manner from each other by a prescribed distance, according to an application type, an application setting and a user'"'"'s behavior; and

selecting a microphone to be used for capturing a sound, by monitoring a state of the mobile terminal according to a type of an execution application and a user'"'"'s behavior scenario.

16. The method of claim 15, wherein in case of mounting three or more microphones, a camera is arranged on the center of a plane which connects the microphones with each other.

17. The method of claim 15, wherein the application type comprises a video call, a voice recording, a voice recognition and a moving image capturing, and

wherein the application setting comprises a sampling rate, an image capturing mode by a camera, and a sound capturing mode.

18. The method of claim 15, wherein the microphones are spaced from each other with different spacing distances therebetween, so as to correspond to a sampling rate of a sound required according to an application, and

wherein the microphones are arranged on front/rear surfaces and upper/lower surfaces of the body.

19. The method of claim 15, wherein the user'"'"'s behavior scenario comprises a voice call in a speaker phone mode, a video call in a state where a user holds the mobile terminal, a selection of front/rear cameras, and a change of a sound capturing mode.

20. The method of claim 15, wherein when the sampling rate of the execution application is low, two microphones far from each other are selected, and

wherein when the sampling rate of the execution application is high, two microphones close to each other are selected.