Built-in micro-speaker for wireless communication device

• US 20020127976A1
• Filed: 03/09/2001
• Published: 09/12/2002
• Est. Priority Date: 03/09/2001
• Status: Abandoned Application

• Current Assignee: Walsin Advanced Electronics Limited
• Original Assignee: Walsin Advanced Electronics Limited
• Inventors: Liu, Wen-Chun
• Application Number:
  US09/803,594
• Publication Number:
  US 20020127976A1
• Time in Patent Office: Days
• US Class Current: 455/550.1
• CPC Class Codes: H04R 1/06 Arranging circuit leads; Relieving strain on circuit leads
• CPC Class Codes: H04R 2400/01 Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
• CPC Class Codes: H04R 9/10 Telephone receivers

Abstract

An integral micro-speaker having bi-directional dual magnetic field loops is provided. In general, the integral micro-speaker is incorporated into a wireless communication device such as a wireless telephone or a mobile telephone. The integral micro-speaker serves as a receiver and a speaker in a wireless telephone. The integral micro-speaker may further incorporate a vibrator for producing an added vibration function to the wireless telephone. In other words, a receiver, a speaker and a vibrator may be combined together to form an integral component inside the wireless telephone.

Claims

1. A built-in micro-speaker for a wireless communication device, the micro-speaker including:

a supporting device;

a first vibration system, having a first pole plate, a first magnetic iron core, a first acoustic coil and a first vibration membrane;

a second vibration system, having a second pole plate, a second magnetic iron core, a second acoustic coil and a second vibration membrane, wherein the supporting device is interleaved between the first vibration system and the second vibration system, wherein the second vibration system serves as a receiver of the wireless communication device, the first vibration system serves as a broadcasting speaker of the wireless communication device.

2. The built-in micro-speaker of claim 1, wherein when the first vibration system serves as the broadcasting speaker of the wireless communication device, the first vibration system also serving as a vibration alarm producer and producing alarm vibration when receive a specified frequency signal.

3. The built-in micro-speaker of claim 2, wherein the frequency of the specified frequency signal is ranged from 90 to 110 Hz.

4. The built-in micro-speaker of claim 3, wherein the frequency of the specified frequency signal is about 100 Hz.

5. The built-in micro-speaker of claim 1, wherein the supporting device is a yoke-like device.

6. The built-in micro-speaker of claim 1, further comprising a connecting device for plugging into an external device for electrically coupling the external device.

7. The built-in micro-speaker of claim 1, further comprising a resonance mask for covering and protecting the second vibration system.

8. The built-in micro-speaker of claim 7, the resonance mask further comprising a plurality of holes thereon for producing a resonance.

9. The built-in micro-speaker of claim 8, the number of the holes on the resonance mask depending on a desired resonance frequency.

10. The built-in micro-speaker of claim 8, the size of the hole on the resonance mask depending on a desired resonance frequency.

11. A built-in micro-speaker for a wireless communication device, the micro-speaker including:

a supporting device;

a first vibration system, having a first pole plate, a first magnetic iron core, a first acoustic coil and a first vibration membrane;

a second vibration system, having a second pole plate, a second magnetic iron core, a second acoustic coil and a second vibration membrane, wherein the supporting device is interleaved between the first vibration system and the second vibration system, wherein the first vibration system and the second vibration system are integrally formed, wherein the second vibration system serves as a receiver of the wireless communication device, the first vibration system serves as a broadcasting speaker of the wireless communication device.

12. The built-in micro-speaker of claim 11, wherein when the first vibration system serves as the broadcasting speaker of the wireless communication device, the first vibration system also serving as a vibration alarm producer and producing alarm vibration when receive a specified frequency signal.

13. The built-in micro-speaker of claim 12, wherein the frequency of the specified frequency signal is ranged from 90 to 110 Hz.

14. The built-in micro-speaker of claim 13, wherein the frequency of the specified frequency signal is about 100 Hz.

15. The built-in micro-speaker of claim 11, wherein the supporting device is a yoke-like device.

16. The built-in micro-speaker of claim 11, further comprising a connecting device for plugging into an external device for electrically coupling the external device.

17. The built-in micro-speaker of claim 11, further comprising a resonance mask for covering and protecting the second vibration system.

18. The built-in micro-speaker of claim 17, the resonance mask further comprising a plurality of holes thereon for producing a resonance.

19. The built-in micro-speaker of claim 18, the number of the holes on the resonance mask depending on a desired resonance frequency.

20. The built-in micro-speaker of claim 18, the size of the hole on the resonance mask depending on a desired resonance frequency.

21. A built-in micro-speaker for a wireless communication device, the micro-speaker including:

a supporting device;

a first vibration system, having a first pole plate, a first magnetic iron core, a first acoustic coil and a first vibration membrane;

a second vibration system, having a second pole plate, a second magnetic iron core, a second acoustic coil and a second vibration membrane, wherein the first vibration membrane is heavier than the second vibration membrane, the supporting device being interleaved between the first vibration system and the second vibration system, the first vibration system and the second vibration system being integrally formed, the second vibration system serving as a receiver of the wireless communication device, the first vibration system serving as a broadcasting speaker of the wireless communication device.

22. The built-in micro-speaker of claim 21, wherein when the first vibration system serves as the broadcasting speaker of the wireless communication device, the first vibration system also serving as a vibration alarm producer and producing alarm vibration when receive a specified frequency signal.

24. The wireless communication device of claim 23, wherein when the first vibration system serves as the broadcasting speaker of the wireless communication device, the first vibration system also serving as a vibration alarm producer and producing alarm vibration when receive a specified frequency signal.

25. The wireless communication device of claim 24, wherein the frequency of the specified frequency signal is ranged from 90 to 110 Hz.

26. The wireless communication device of claim 25, wherein the frequency of the specified frequency signal is 100 Hz.

27. The wireless communication device of claim 23, wherein the supporting device is a yoke-like device.

28. The built-in micro-speaker of claim 23, further comprising a connecting device for plugging into an external device for electrically coupling the external device.

29. The wireless communication device of claim 23, further comprising a resonance mask for covering and protecting the second vibration system.

30. The wireless communication device of claim 29, the resonance mask further comprising a plurality of holes thereon for producing a resonance.

31. The wireless communication device of claim 30, the number of the holes on the resonance mask depending on a desired resonance frequency.

32. The wireless communication device of claim 31, the size of the hole on the resonance mask depending on a desired resonance frequency.

23. A wireless communication device, comprising a built-in micro-speaker, wherein the micro-speaker comprising:

a supporting device;

a first vibration system, having a first pole plate, a first magnetic iron core, a first acoustic coil and a first vibration membrane;

a second vibration system, having a second pole plate, a second magnetic iron core, a second acoustic coil and a second vibration membrane, wherein the supporting device is interleaved between the first vibration system and the second vibration system, wherein the first vibration system and the second vibration system are integrally formed, wherein the second vibration system serves as a receiver of the wireless communication device, the first vibration system serves as a broadcasting speaker of the wireless communication device.