CN102595296B - Hearing aids compatible apparatus and hearing aids compatible mobile terminals - Google Patents
Hearing aids compatible apparatus and hearing aids compatible mobile terminals Download PDFInfo
- Publication number
- CN102595296B CN102595296B CN201210022001.7A CN201210022001A CN102595296B CN 102595296 B CN102595296 B CN 102595296B CN 201210022001 A CN201210022001 A CN 201210022001A CN 102595296 B CN102595296 B CN 102595296B
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- hearing aids
- circuit board
- auxiliary antenna
- antenna
- aids compatible
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- 238000012360 testing method Methods 0.000 description 9
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention discloses a kind of hearing aids compatible apparatus and hearing aids compatible mobile terminals.Wherein, described hearing aids compatible apparatus comprises at least one auxiliary antenna, and described auxiliary antenna is connected to the ground wire of circuit board, and wherein, the length of described auxiliary antenna is greater than or less than 1/4th of the wavelength of required reduction frequency range.By the way, the present invention can reduce the electric current on ground wire, and the energy emission of electric current on ground wire is gone out, thus reduces main antenna to the interference of hearing aids.
Description
Technical field
The present invention relates to field of mobile communication, particularly relate to a kind of hearing aids compatible apparatus and hearing aids compatible mobile terminals.
Background technology
Along with popularizing of mobile terminal, mobile terminal is widely used in various crowd.For the crowd having dysaudia, they need hearing aids just can hear sound.When mobile terminal just in use, mobile terminal can produce radio frequency (RF) interference signal of electromagnetism (EM) form, and these interference signals may be picked up by the microphone of hearing aids or telephone induction coil, in hearing aids, produce noise.Therefore, mobile terminal needs the compatibility (HAC, HearingAidCompatibility) between hearing aids and mobile terminal to test before dispatching from the factory.
At present, the test of HAC is mainly divided into two kinds of patterns, rf-mode and audio modes.The method of testing of the rf-mode of important part is tested as HAC, with the detection zone of the special test probe scanning distance mobile terminal 10 millimeters ~ 15 millimeters as shown in Figure 1 of electromagnetic field, the 5*5 millimeter centered by the receiver 110 of mobile terminal, to obtain the value of the electromagnetic field in this region, according to the ANSIC63.19 standard that ANSI (AmericanNationalStandardsInstitute) promulgates, the electromagnetic field of test must reach more than M3 grade.Following table is the substandard M grading standard of ANSIC63.19:
| Classification | Electric field transmitted restriction (volts/meter) | Emission of magnetic field restriction (amperes per meter) |
| M1 | 149.6-266.1 | 0.45-0.8 |
| M2 | 84.1-149.6 | 0.25-0.45 |
| M3 | 47.3-84.1 | 0.15-0.25 |
| M4 | ＜47.3 | ＜0.15 |
In order to reduce radio frequency (RF) interference signal to the impact of hearing aids, mobile terminal is tested by HAC, prior art provides a solution, as shown in Figure 2, a kind of clamshell handset, renovate open time, panel and the antenna 120 at receiver 110 place form α angle, make antenna 120 away from receiver 110, thus reduce Radio Frequency Interfere to the interference of hearing aids.
But the program is designed with certain requirement to outward appearance, and, when the given volume of mobile phone, very limited by the Radio Frequency Interfere adopting the method increasing the panel at receiver 110 place and the spacing of antenna 120 to reduce.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of hearing aids compatible apparatus and hearing aids compatible mobile terminals, effectively can reduce Radio Frequency Interfere, improves HAC function.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of hearing aids compatible apparatus, described hearing aids compatible apparatus comprises at least one auxiliary antenna, described auxiliary antenna electric is connected to the ground wire of circuit board, wherein, the length of described auxiliary antenna is greater than or less than 1/4th of the wavelength of required reduction frequency range.
Wherein, described auxiliary antenna is printed antenna.
Wherein, the area of described printed antenna is 15 to 30 square millimeters.
Wherein, described auxiliary antenna is connected to ground line current the best part on circuit board.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of hearing aids compatible mobile terminals, and described mobile terminal comprises circuit board, the receiver be arranged on circuit board, main antenna and hearing aids compatible apparatus; Wherein, described hearing aids compatible apparatus comprises at least one auxiliary antenna, and described auxiliary antenna is connected to the ground wire of circuit board, and wherein, the length of described auxiliary antenna is greater than or less than 1/4th of the wavelength of required reduction frequency range.
Wherein, also comprise the second auxiliary antenna, described main antenna is arranged at the top of back of circuit board, and the first auxiliary antenna is arranged at the top of back of circuit board, and described receiver is arranged at the top before circuit board, and described second auxiliary antenna is arranged at the front of described circuit board.
Wherein, also comprise the second auxiliary antenna, described second auxiliary antenna is arranged at the front of described circuit board.
Wherein, described auxiliary antenna is printed antenna.
Wherein, the area of described printed antenna is 15 to 30 square millimeters.
Wherein, described auxiliary antenna is connected to ground line current the best part on circuit board.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention by arranging auxiliary antenna in addition outside main antenna, and auxiliary antenna is connected with the ground wire of circuit board, reduce the electric current on ground wire, and the energy emission of electric current on ground wire gone out, thus reduce main antenna to the interference of hearing aids.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in the probe scanning region under prior art rf-mode;
Fig. 2 is the structural representation that prior art passes through that the distance increased between antenna and receiver reduces the clamshell handset of radio frequency interference;
Fig. 3 is the side-looking structural representation of hearing aids compatible apparatus first embodiment of the present invention;
Fig. 4 is the backsight structural representation of hearing aids compatible apparatus first embodiment of the present invention;
Fig. 5 is the main TV structure schematic diagram of hearing aids compatible apparatus second embodiment of the present invention;
Fig. 6 is the rearview of Fig. 5.
Embodiment
Be described in detail below in conjunction with drawings and Examples.
Refer to Fig. 3 and Fig. 4.Fig. 3 is the side-looking structural representation of hearing aids compatible apparatus first embodiment of the present invention.Fig. 4 is the backsight structural representation of hearing aids compatible apparatus first embodiment of the present invention.This hearing aids compatible apparatus is installed on mobile terminals, and hearing aids compatible mobile terminals comprises circuit board 240, be arranged at the receiver 210 before circuit board 240 and the main antenna 220 be arranged on circuit board 240 and auxiliary antenna 230.Specifically, main antenna 220 is arranged at the bottom at circuit board 240 back side, and auxiliary antenna 230 is arranged at the top at circuit board 240 back side, and receiver 210 is arranged at the top before circuit board 240.Wherein, main antenna 220 is arranged away from receiver 210, can reduce the interference of main antenna 220 pairs of receivers 210.
In the present embodiment, auxiliary antenna 230 is arranged at the top at circuit board 240 back side, and auxiliary antenna 230 is for being printed in the printed antenna on circuit board, and its concrete shape can be determined according to the free space of mobile terminal, preferably, the area of printed antenna is 15 to 30 square millimeters.Wherein, the length of auxiliary antenna 230 is greater than or less than 1/4th of the wavelength of required reduction frequency range, if four of the wavelength of reduction frequency range needed for equaling/will minus effect be caused first.Auxiliary antenna 230 is connected on the ground wire of circuit board 240, the electric current on splitter section ground wire, and the energy emission of electric current is gone out.In order to obtain better effect, preferably, auxiliary antenna 230 is connected to ground line current the best part on circuit board 240.
When carrying out HAC test, with the detection zone of the special test probe scanning distance mobile terminal 10 millimeters ~ 15 millimeters as shown in Figure 1 of electromagnetic field, the 5*5 millimeter centered by the receiver 110 of mobile terminal, the data before not increasing auxiliary antenna 230 and after increasing auxiliary antenna 230 are distinguished as shown in the table:
Before not increasing auxiliary antenna 230, in the data of the total radiant power of each channel, electromagnetism and magnetic field test, it is as shown in the table:
After increasing auxiliary antenna 230, in the data of the total radiant power of each channel, electromagnetism and magnetic field test, it is as shown in the table:
Comprehensively the data of above-mentioned two forms are known: after adding auxiliary antenna 230, the total radiant power of each channel does not change substantially, do not affect the effect of mobile terminal communication, and at distance mobile terminal 10 millimeters ~ 15 millimeters as shown in Figure 1, in the detection zone of the 5*5 millimeter centered by the receiver 110 of mobile terminal, probe in detecting to Electric and magnetic fields all there occurs change.Before not increasing auxiliary antenna 230, electric field, more than 84.1 volts/meter, belongs to M2 grade, fails to reach the requirement of ANSIC63.19 standard.After increasing auxiliary antenna 230, electric field data drops to below 84.1 volts/meter, belongs to M3 grade, can reach the requirement of ANSIC63.19 standard well.And magnetic field data have also been obtained decline, improve the HAC performance of mobile terminal further.
See Fig. 5 and Fig. 6.Fig. 5 is the main TV structure schematic diagram of hearing aids compatible apparatus second embodiment of the present invention.Fig. 6 is the rearview of Fig. 5.Be from the different of the first embodiment, in the present embodiment, hearing aids compatible apparatus comprises the first auxiliary antenna 330 and the second auxiliary antenna 340, wherein, first auxiliary antenna 330 is arranged at the back side of circuit board 350, and the second auxiliary antenna 340 is arranged at the front of circuit board 350, in preferential embodiment, second auxiliary antenna 340 is arranged at the position near receiver 310, can improve the HAC performance of mobile terminal better.
Have benefited from the design of the second auxiliary antenna 340, the setting of main antenna 320 obtains more freedom.Main antenna 320 can be arranged at bottom or the top at circuit board 350 back side, two kinds be arranged on HAC test in all can reach standard.
In other embodiments, hearing aids compatible apparatus also can arrange more auxiliary antenna, the energy emission of more electric current is gone out, and concrete setting considers required electric current, the energy emission amount of electric current and the actual space available of mobile terminal shunted.
Be different from the situation of prior art, the present invention by arranging auxiliary antenna in addition outside main antenna, and auxiliary antenna is connected with the ground wire of circuit board, reduces the electric current on ground wire, and the energy emission of electric current on ground wire gone out, thus reduce main antenna to the interference of hearing aids.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a hearing aids compatible apparatus, is characterized in that, described hearing aids compatible apparatus comprises at least one auxiliary antenna, and described auxiliary antenna is connected to the ground wire of circuit board, and wherein, the length of described auxiliary antenna is greater than or less than 1/4th of the wavelength of required reduction frequency range;
Described auxiliary antenna is printed antenna;
The area of described printed antenna is 15 to 30 square millimeters.
2. hearing aids compatible apparatus according to claim 1, is characterized in that, described auxiliary antenna is connected to ground line current the best part on circuit board.
3. a hearing aids compatible mobile terminals, is characterized in that,
Described mobile terminal comprises circuit board, the receiver be arranged on circuit board, main antenna and hearing aids compatible apparatus;
Wherein, described hearing aids compatible apparatus comprises at least one auxiliary antenna, and described auxiliary antenna is connected to the ground wire of circuit board, and wherein, the length of described auxiliary antenna is greater than or less than 1/4th of the wavelength of required reduction frequency range;
Described auxiliary antenna is printed antenna;
The area of described printed antenna is 15 to 30 square millimeters.
4. hearing aids compatible mobile terminals according to claim 3, is characterized in that, described main antenna is arranged at the bottom of back of circuit board, and the first auxiliary antenna is arranged at the top of back of circuit board, and described receiver is arranged at the top before circuit board.
5. hearing aids compatible mobile terminals according to claim 3, it is characterized in that, also comprise the second auxiliary antenna, described main antenna is arranged at the top of back of circuit board, first auxiliary antenna is arranged at the top of back of circuit board, described receiver is arranged at the top before circuit board, and described second auxiliary antenna is arranged at the front of described circuit board.
6. hearing aids compatible mobile terminals according to claim 3, is characterized in that, described auxiliary antenna is connected to ground line current the best part on circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022001.7A CN102595296B (en) | 2012-01-31 | 2012-01-31 | Hearing aids compatible apparatus and hearing aids compatible mobile terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022001.7A CN102595296B (en) | 2012-01-31 | 2012-01-31 | Hearing aids compatible apparatus and hearing aids compatible mobile terminals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102595296A CN102595296A (en) | 2012-07-18 |
| CN102595296B true CN102595296B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210022001.7A Expired - Fee Related CN102595296B (en) | 2012-01-31 | 2012-01-31 | Hearing aids compatible apparatus and hearing aids compatible mobile terminals |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577314A (en) * | 2013-10-23 | 2015-04-29 | 中兴通讯股份有限公司 | Method for improving anti-interference capability of PCB, anti-interference PCB and terminal comprising anti-interference PCB |
| DK3038204T3 (en) * | 2014-12-22 | 2021-06-21 | Oticon As | ANTENNA DEVICE FOR HEARING AID |
| CN109379685A (en) * | 2018-12-25 | 2019-02-22 | 深圳市万普拉斯科技有限公司 | HAC implementation method, device, mobile terminal and readable storage medium storing program for executing |
| CN109873678B (en) * | 2019-01-30 | 2021-09-07 | 努比亚技术有限公司 | Call control method, device and computer readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117804Y (en) * | 2007-11-12 | 2008-09-17 | 杭州电子科技大学 | Size reduced low contour back cavity linear polarization antenna |
| CN102098070A (en) * | 2011-02-17 | 2011-06-15 | 上海安费诺永亿通讯电子有限公司 | Communication terminal capable of effectively reducing HAC/SAR of antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8344962B2 (en) * | 2008-11-20 | 2013-01-01 | Nokia Corporation | Apparatus, method and computer program for wireless communication |
| US20100207832A1 (en) * | 2009-02-17 | 2010-08-19 | Sony Ericsson Mobile Communications Ab | Antenna arrangement, printed circuit board, portable electronic device & conversion kit |
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2012
- 2012-01-31 CN CN201210022001.7A patent/CN102595296B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117804Y (en) * | 2007-11-12 | 2008-09-17 | 杭州电子科技大学 | Size reduced low contour back cavity linear polarization antenna |
| CN102098070A (en) * | 2011-02-17 | 2011-06-15 | 上海安费诺永亿通讯电子有限公司 | Communication terminal capable of effectively reducing HAC/SAR of antenna |
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| CN102595296A (en) | 2012-07-18 |
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