CA2583899A1 - Shielded microphone for mobile communications device - Google Patents
Shielded microphone for mobile communications device Download PDFInfo
- Publication number
- CA2583899A1 CA2583899A1 CA002583899A CA2583899A CA2583899A1 CA 2583899 A1 CA2583899 A1 CA 2583899A1 CA 002583899 A CA002583899 A CA 002583899A CA 2583899 A CA2583899 A CA 2583899A CA 2583899 A1 CA2583899 A1 CA 2583899A1
- Authority
- CA
- Canada
- Prior art keywords
- microphone
- circuit board
- electromagnetic shield
- separator
- shielding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/04—Structural association of microphone with electric circuitry therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Transceivers (AREA)
- Transmitters (AREA)
Abstract
A shielded microphone, and method for shielding a microphone, are provided for use in a communications device having a circuit board and a microphone, especially where the device also has an antenna in close proximity to the microphone. The microphone is provided in an electromagnetic shield (e.g formed as a shielding can) and a resilient separator (e.g o-ring or disk) is provided over the shield. The device housing is stacked over the separator and shield, while the latter are stacked over the circuit board so that the separator and shield, with microphone there under, are sandwiched between the housing and the circuit board. By this sandwiching the separator is loaded onto the shield to drive the shield directly against the circuit board to make an electrical ground connection therewith, the microphone also being electrically connected to the printed circuit board. The microphone is thereby enclosed between the circuit board and the shield, such that the shield shields the microphone against electromagnetic energy radiated by the proximate antenna. The resilience of the separator accommodates the variation in the stacking of the components.
Claims (18)
1. A shielded microphone assembly comprising a microphone and a conductive, electromagnetic shield, for use in a communications device having a circuit board and a housing, and in use being proximate to an antenna, characterized by a resilient separator over said electromagnetic shield, wherein said conductive, electromagnetic shield is over said microphone and said assembly is configured to co-operate with said housing and said circuit board to electrically connect each of said microphone and said electromagnetic shield to said circuit board upon loading said housing onto said separator and said electromagnetic shield onto said circuit board, thereby enclosing said microphone between said circuit board and said electromagnetic shield and grounding said electromagnetic shield.
2. A shielded microphone assembly according to claim 1, wherein said electromagnetic shield) is formed as a shielding can having a lip), said shielding can electrically connecting to said circuit board (30) by means of said lip.
3. A shielded microphone assembly according to claim 2, wherein said separator (70) is a resilient o-ring surrounding an outside perimeter of said shielding can over said lip).
4. A shielded microphone assembly according to claim 1, wherein said electromagnetic shield is formed as a shielding can and said separator is a resilient disk positioned over a ceiling of said shielding can, said ceiling configured for positioning adjacent said housing upon said loading of said housing.
5. A shielded microphone assembly according to claim 4, wherein said disk is aligned over said shielding can, upon said loading of said housing, by means of a channel (110) formed in said housing.
6. A shielded microphone assembly according to any preceding claim, wherein said separator comprises an electrically insulating material.
7. A shielded microphone assembly according to any preceding claim, wherein said circuit board is a printed circuit board.
8. A shielded microphone assembly according to any preceding claim, wherein said electromagnetic shield comprises an outlet for communication of sound waves to said microphone.
9. A shielded microphone assembly according to claim 4 or claim 5, wherein said disk comprises a central aperture for communication of sound waves to said microphone.
10. A mobile communications device comprising an antenna and a shielded microphone assembly in accordance with any one of claims 1 to 9.
11. A method of shielding a microphone in a communications device having a circuit board and a housing, said device being used with an antenna either as part of said device or in proximity to said device, the method comprising shielding said microphone with a conductive, electromagnetic shield over said microphone and characterized by the steps of:
providing a resilient separator over said electromagnetic shield, and, sandwiching said shielded microphone and separator between said housing and said circuit board, whereby said shielded microphone and separator are configured to co-operate with said housing and said circuit board to electrically connect each of said microphone and said electromagnetic shield to said circuit board, said electromagnetic shield being thereby grounded, said sandwiching producing a loading of said housing onto said separator and said electromagnetic shield onto said circuit board, thereby enclosing said microphone between said circuit board and said electromagnetic shield.
providing a resilient separator over said electromagnetic shield, and, sandwiching said shielded microphone and separator between said housing and said circuit board, whereby said shielded microphone and separator are configured to co-operate with said housing and said circuit board to electrically connect each of said microphone and said electromagnetic shield to said circuit board, said electromagnetic shield being thereby grounded, said sandwiching producing a loading of said housing onto said separator and said electromagnetic shield onto said circuit board, thereby enclosing said microphone between said circuit board and said electromagnetic shield.
12. A method according to claim 11, whereby said electromagnetic shield is formed as a shielding can having a lip, said shielding can electrically connecting to said circuit board by means of said lip.
13. A method according to claim 12, whereby said separator is a resilient o-ring provided to surround an outside perimeter of said shielding can.
14. A method according to claim 11, whereby said electromagnetic shield is formed as a shielding can and said separator is a resilient disk provided over a ceiling of said shielding can, said ceiling being positioned adjacent said housing upon said loading of said housing.
15. A method according to any one of claims 11 to 14, whereby said separator comprises an electrically insulating material.
16. A method according to any one of claims 11 to 15, whereby said electromagnetic shield comprises an outlet for communication of sound waves to said microphone.
17. A method according to any one of claims 11 to 16, whereby said microphone is fixed to said circuit board and said circuit board is a printed circuit board.
18. A method according to any one of claims 11 to 17, whereby said microphone is held against said circuit board by said electromagnetic shield.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06112357.6 | 2006-04-07 | ||
| EP06112357A EP1843625B1 (en) | 2006-04-07 | 2006-04-07 | Shielded Microphone for Mobile Communications Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2583899A1 true CA2583899A1 (en) | 2007-10-07 |
| CA2583899C CA2583899C (en) | 2011-03-08 |
Family
ID=37054401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2583899A Active CA2583899C (en) | 2006-04-07 | 2007-04-04 | Shielded microphone for mobile communications device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1843625B1 (en) |
| AT (1) | ATE417478T1 (en) |
| CA (1) | CA2583899C (en) |
| DE (1) | DE602006004174D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498463A (en) * | 2022-11-18 | 2022-12-20 | 深圳市西点精工技术有限公司 | Electromagnetic shielding composite assembly and high-speed backplane connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2809939B2 (en) * | 1992-08-26 | 1998-10-15 | 松下電器産業株式会社 | Microphone device |
| FI970409A (en) * | 1997-01-31 | 1998-08-01 | Nokia Mobile Phones Ltd | Method of protecting the microphone from external interference and microphone interference shielding |
| US5937361A (en) * | 1997-05-09 | 1999-08-10 | Ericsson Inc. | Radiotelephones with shielded microphones |
| US7398072B2 (en) * | 2004-08-31 | 2008-07-08 | Research In Motion Limited | Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitry |
-
2006
- 2006-04-07 DE DE602006004174T patent/DE602006004174D1/en active Active
- 2006-04-07 AT AT06112357T patent/ATE417478T1/en not_active IP Right Cessation
- 2006-04-07 EP EP06112357A patent/EP1843625B1/en active Active
-
2007
- 2007-04-04 CA CA2583899A patent/CA2583899C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498463A (en) * | 2022-11-18 | 2022-12-20 | 深圳市西点精工技术有限公司 | Electromagnetic shielding composite assembly and high-speed backplane connector |
Also Published As
| Publication number | Publication date |
|---|---|
| DE602006004174D1 (en) | 2009-01-22 |
| ATE417478T1 (en) | 2008-12-15 |
| CA2583899C (en) | 2011-03-08 |
| EP1843625B1 (en) | 2008-12-10 |
| EP1843625A1 (en) | 2007-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8213660B2 (en) | Shielded microphone for mobile communications device | |
| US6417817B1 (en) | Integrated antenna ground plate and EMC shield structure | |
| EP3665743B1 (en) | Antenna for a wearable audio device | |
| TW200952620A (en) | Shielding device and printed circuit board with shielding protection | |
| JPH0993029A (en) | Antenna device | |
| CN107946740B (en) | Shell, antenna device and mobile terminal | |
| KR20100037654A (en) | Emc-arrangement for a device employing wireless data transfer | |
| US20090179805A1 (en) | Antenna system for wireless digital devices | |
| KR101767865B1 (en) | Method, apparatus and system for counting electricity consumption | |
| KR100673531B1 (en) | Thin electromagnetic shielding tape, electromagnetic shielding structure using thereof and manufacturing method thereof | |
| WO2017194029A1 (en) | Housing, antenna device, and mobile terminal | |
| CA2583899A1 (en) | Shielded microphone for mobile communications device | |
| JP2006093998A (en) | Mobile communication apparatus | |
| US20170194695A1 (en) | Antenna device and mobile terminal | |
| RU2523443C2 (en) | Antenna device for portable wireless terminal | |
| WO2014049920A1 (en) | Electromagnetic wave propagation system and electromagnetic wave interface connector | |
| US10383266B2 (en) | Wireless signal isolation assembly | |
| CN116417782B (en) | Wireless earphone and terminal antenna | |
| JP4524964B2 (en) | Wireless circuit | |
| US20080106474A1 (en) | Device Comprising An Antenna For Exchanging Radio Frequency Signals | |
| CN213847459U (en) | Terminal with microphone device | |
| CN209930822U (en) | Shielding device | |
| JPH1167300A (en) | Terminal board | |
| US5517069A (en) | Battery contacts having a high frequency energy filtering characteristics | |
| US20140079042A1 (en) | Radio Frequency Interference Shield |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |