CN101651862A - Talking terminal capable of improving listening quality of hearing aid - Google Patents
Talking terminal capable of improving listening quality of hearing aid Download PDFInfo
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- CN101651862A CN101651862A CN200810041770A CN200810041770A CN101651862A CN 101651862 A CN101651862 A CN 101651862A CN 200810041770 A CN200810041770 A CN 200810041770A CN 200810041770 A CN200810041770 A CN 200810041770A CN 101651862 A CN101651862 A CN 101651862A
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- inductance coil
- audio
- call terminal
- electrical signal
- processing chip
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Abstract
The invention provides a talking terminal capable of improving the listening quality of a hearing aid, which comprises an audio processing unit. The key point is that the talking terminal also comprises an inductance coil, and the inductance coil is connected with an audio electrical signal output end of the audio processing unit to convert the audio electrical signals output by the audio processing unit into electromagnetic waves which are coupled to the inductance coil of the hearing aid from air. By applying the talking terminal, the signal-to-noise ratio of the output signals of the talking terminal is high under environmental noises to further improve the listening quality of the hearing aid.
Description
Technical field
The present invention relates to verbal system, particularly can improve the call terminal of listening quality of hearing aid.
Background technology
Call terminal has become the indispensable communication tool of people, spreading in the middle of all kinds of crowds' the life fast, call terminal can comprise mobile call terminal, fixedly call terminal and personal digital assistant (PDA, Personal Digital Assistant) etc.With the mobile call terminal is example, when people use the mobile call terminal incoming call answering, the voice signal of hearing is to be play by the module of being talked about of mobile call terminal inside, this is talked about module and comprises: audio treatment unit and receiver (being the common receiver of understanding), Fig. 1 is the structural representation of prior art mobile call terminal.
During incoming call answering, after the Return Reception Dept. branch of mobile call terminal (comprising antenna and associated processing circuit etc.) receives the signal of the other side's call terminal transmission and carries out conventional treatment such as demodulation, decoding, be sent to the audio treatment unit of being talked about module, conversion of signals after will being handled by audio treatment unit is the audio electrical signal of simulation, by receiver this audio electrical signal is converted to voice signal again, plays to the user.
The Return Reception Dept. branch of other call terminals may be with mobile call terminal described above different, but it is basic identical to be talked about the 26S Proteasome Structure and Function of module section.
Comprise among the use crowd of call terminal that a part of hearing has the people of obstacle, they are worn on hearing aids on the ear usually to remedy the deficiency of hearing.Therefore when these hearing have people's incoming call answering of obstacle, the receiver played sound signal of call terminal is not directly to enter ear, but the microphone that is introduced into hearing aids is converted into the audio electrical signal of simulation, after the treatment circuit of this audio electrical signal process hearing aids amplifies, gain etc. handled, the playing module by hearing aids was converted into the ear that voice signal is sent to the people again.
Complexity day by day along with the call terminal environment for use, various ambient noises are more and more, as everyone knows, the voice signal antijamming capability is relatively poor, signal to noise ratio under noise circumstance is very low, therefore by the receiver of call terminal in the communication process of hearing aid microphone, will sneak into a large amount of ambient noises in the voice signal, thereby influence the listening quality of hearing aids.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of call terminal that can improve listening quality of hearing aid, makes the signal to noise ratio height of output signal under ambient noise of call terminal, and then improves the listening quality of hearing aids.
Technical scheme of the present invention is achieved in that
A kind of call terminal that can improve listening quality of hearing aid comprises audio treatment unit; Key is that this call terminal also comprises inductance coil;
Described inductance coil is connected with the audio electrical signal output of described audio treatment unit, and the audio electrical signal that audio treatment unit is exported is converted to electromagnetic wave, and described electromagnetic wave is by the inductance coil that is coupled in the air in the hearing aids.
Preferably, described Audio Processing chip is both-end output;
The two ends of described inductance coil are connected on two audio electrical signal outputs of described Audio Processing chip.
Preferably, described inductance coil is two, and two ends, series connection back are connected on two audio electrical signal outputs of described Audio Processing chip.
Preferably, described Audio Processing chip is single-ended output;
One end of described inductance coil is connected on the audio electrical signal output of described Audio Processing chip, and the other end is unsettled.
Preferably, described inductance coil comprises a plurality of subcoils, and in be built in the printing board PCB of call terminal, wherein each of PCB layer is arranged a subcoil of inductance coil, the subcoil between every adjacent two layers links to each other by the interlayer circuit.
As seen, call terminal provided by the invention is coupled in the air after by inductance coil audio electrical signal being converted to electromagnetic wave, after inductance coil in the hearing aids is coupled to the electromagnetic wave of call terminal transmission, this electromagnetic wave is converted to audio electrical signal, by the treatment circuit of hearing aids with this audio electrical signal gain, after amplification etc. handles, the conversion of signals after will being handled by the playing module of hearing aids again is the ear that voice signal is sent to the people.Because electromagnetic wave and ambient noise are complete dissimilar signals, inductance coil in the hearing aids is only to sensitive to electromagnetic waves, to improve greatly than voice signal and be coupled to the signal to noise ratio of aerial electromagnetic wave under ambient noise, so use call terminal provided by the invention, can make the signal to noise ratio height of output signal under ambient noise of call terminal, and then make the user pass through hearing aids uppick sound more clearly, improved the listening quality of hearing aids.
Description of drawings
Fig. 1 is the structural representation of prior art mobile call terminal;
Fig. 2 is first kind of structural representation of the embodiment of the invention;
Fig. 3 is for being built in the inductance coil schematic diagram of PCB in the embodiment of the invention;
Fig. 4 is second kind of structural representation of the embodiment of the invention.
Embodiment
For making objects and advantages of the present invention clearer, the present invention is further detailed explanation below in conjunction with drawings and Examples.
The present invention can improve in the call terminal of listening quality of hearing aid, comprise audio treatment unit and inductance coil (Telecoil), wherein inductance coil is connected with the audio electrical signal output of audio treatment unit, the audio electrical signal of audio treatment unit output is converted to electromagnetic wave, and described electromagnetic wave is by the inductance coil that is coupled to hearing aids in the air.Above-mentionedly audio electrical signal is converted to electromagnetic wave is based on known physical principle, can simplified summary be: the audio electrical signal of audio treatment unit output be an ac signal, it promptly is the signal of telecommunication of a variation, when the signal of telecommunication of this variation passes through inductance coil, the magnetic field that changes, the electric field that the magnetic field of this variation changes has again promptly formed electromagnetic field, and the propagation of electromagnetic field has just formed electromagnetic wave.
Fig. 2 is the structural representation of a kind of specific embodiment of call terminal of the present invention, and in this embodiment, call terminal is a mobile call terminal; Audio treatment unit adopts the Audio Processing chip to realize, this Audio Processing chip is both-end output, two inductance coil series connection; Two audio electrical signal outputs of Audio Processing chip connect a resistance respectively, and these two resistance are connected to the two ends of the inductance coil after the series connection again; The frequency range of using is audio frequency range.The audio electrical signal of above-mentioned two audio electrical signal outputs output is a differential signal, this two paths of signals also is connected on the receiver, according to common mode audio electrical signal is converted to voice signal by receiver and broadcasts, listen to for the common user who does not wear hearing aids.Inductance coil shown in Fig. 2 only is a kind of plane symbol that is used to illustrate, the number of turns of each inductance coil is relevant with the diameter of inductance coil itself with impedance.
Adopting the differential signal output audio signal of telecommunication in mobile call terminal is the mode that often adopts in the prior art, has advantage such as can suppress that temperature is floated.Specific to present embodiment, the phase place of two paths of differential signals is opposite, and arrives inductance coil with in opposite directions direction, so two paths of differential signals will superpose in inductance coil, forms stronger electromagnetic wave.
Usually adopt printed circuit board (PCB) (PCB, Printed Circuit Board) as mainboard, to be built among the PCB in the various circuit in the mobile call terminal, various components and parts adopt the form of paster to be placed on the surface of PCB.Above-mentioned PCB is a kind of circuit board with sandwich construction, and PCB making sheet generally includes following a few step: the design software by special use can at first lay out each components and parts the placement location on PCB surface, and in be built in the place on line that PCB is used to connect each components and parts; Make PCB (comprising its each layer cabling) according to design then; With various components and parts, for example the CPU of mobile call terminal, Audio Processing chip etc. are placed on the relevant position on pcb board surface by the mode of paster at last.
In the present embodiment, inductance coil comprise a plurality of subcoils and in be built among the PCB of mobile call terminal, as shown in Figure 3, can in each layer of PCB, all arrange a subcoil of inductance coil, the subcoil of every adjacent two layers links to each other by the interlayer circuit, with the combination of each layer of PCB when as a whole, it is exactly complete inductance coil that the subcoil that is distributed in each layer couples together like this.Be illustrative simplicity, Fig. 4 only shows the three-decker of PCB, inductance coil in the layout of other layer with shown in Figure 4 identical.Certainly in each layer of PCB, can arrange that also this depends on the needs of actual design greater than a subcoil.During the above-mentioned subcoil of in each layer of PCB, arranging inductance coil, adopt common special designs software, and the position of taking all factors into consideration All other routes in the remaining space of PCB and this layer just can be realized, so both made full use of the space of PCB, also do not had to influence the outward appearance of mobile call terminal because increase inductance coil.
What above embodiment enumerated only is a kind of concrete situation, above-mentioned Audio Processing chip also can not adopt differential signal output, and adopt single-ended output, for example, connect a resistance on the audio electrical signal output of Audio Processing chip, this resistance connects an end of inductance coil again, the other end of inductance coil unsettled (promptly not being connected with other any circuits or components and parts).As shown in Figure 4, though in this mode, the connection of inductance coil does not form the loop, the magnetic field that the signal of telecommunication that changes still can change, thus form electromagnetic wave.In connected mode illustrated in fig. 4, receiver is connected on the audio signal output end of Audio Processing chip too, according to usual way audio electrical signal is converted to voice signal, listens to for the common user who does not wear hearing aids.
Present existing hearing aids substantially all is equipped with inductance coil, and have by microphone radio reception with by two kinds of mode of operations of inductance coil coupled electromagnetic wave, generally be provided with specially audio electrical signal is converted to electromagnetic cyclic system at arenas, church etc., people use above-mentioned second kind of pattern of hearing aids, just can listen to sound by the mode of coupled electromagnetic wave in these special places.
When people use hearing aids to pass through call terminal incoming call answering provided by the invention, only need hearing aids is placed above-mentioned second kind of mode of operation, after inductance coil in the hearing aids is coupled to the electromagnetic wave of call terminal transmission, this electromagnetic wave is converted to audio electrical signal, by the treatment circuit of hearing aids with this audio electrical signal gain, after amplification etc. handles, the conversion of signals after will being handled by the playing module of hearing aids again is the ear that voice signal is sent to the people.
Because electromagnetic wave and ambient noise are complete dissimilar signals, inductance coil in the hearing aids is only to sensitive to electromagnetic waves, improve greatly than voice signal and be coupled to the signal to noise ratio of aerial electromagnetic wave under ambient noise, so the signal to noise ratio height of the output signal of call terminal provided by the invention under ambient noise, make the user pass through hearing aids uppick sound more clearly, improved the listening quality of hearing aids.
On the other hand, for the common user who does not use hearing aids, because the audio electrical signal of audio treatment unit output is except that outputing to inductance coil, also with the same receiver that outputs to generally, receiver also is converted to voice signal by normal conditions with this audio electrical signal and plays, so common user still can hear voice signal by common mode, and,, inductance coil can't exert an influence to common user so being coupled to aerial electromagnetic wave because people's ear can not directly be responded to electromagnetic wave.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1, a kind of call terminal that can improve listening quality of hearing aid comprises audio treatment unit; It is characterized in that this call terminal also comprises inductance coil;
Described inductance coil is connected with the audio electrical signal output of described audio treatment unit, and the audio electrical signal that audio treatment unit is exported is converted to electromagnetic wave, and described electromagnetic wave is by the inductance coil that is coupled in the air in the hearing aids.
2, call terminal as claimed in claim 1 is characterized in that, described Audio Processing chip is both-end output;
The two ends of described inductance coil are connected on two audio electrical signal outputs of described Audio Processing chip.
3, call terminal as claimed in claim 2 is characterized in that, described inductance coil is two, and two ends, series connection back are connected on two audio electrical signal outputs of described Audio Processing chip.
4, call terminal as claimed in claim 1 is characterized in that, described Audio Processing chip is single-ended output;
One end of described inductance coil is connected on the audio electrical signal output of described Audio Processing chip, and the other end is unsettled.
5, as each described call terminal of claim 1 to 4, it is characterized in that, described inductance coil comprises a plurality of subcoils, and in be built in the printing board PCB of call terminal, wherein each of PCB layer is arranged a subcoil of inductance coil, and the subcoil between every adjacent two layers links to each other by the interlayer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041770A CN101651862A (en) | 2008-08-15 | 2008-08-15 | Talking terminal capable of improving listening quality of hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041770A CN101651862A (en) | 2008-08-15 | 2008-08-15 | Talking terminal capable of improving listening quality of hearing aid |
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| CN101651862A true CN101651862A (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810041770A Pending CN101651862A (en) | 2008-08-15 | 2008-08-15 | Talking terminal capable of improving listening quality of hearing aid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885321A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Watch with microphone |
| CN103885320A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Watch with voice playing function |
| WO2019015525A1 (en) * | 2017-07-19 | 2019-01-24 | 中兴通讯股份有限公司 | Hearing aid compatible mobile terminal structure |
| CN109451411A (en) * | 2018-11-28 | 2019-03-08 | 深圳市南和移动通信科技股份有限公司 | Low interference player module and mobile terminal |
| US11026250B2 (en) | 2016-05-13 | 2021-06-01 | Huawei Technologies Co., Ltd. | Scheduling method, device, and system |
-
2008
- 2008-08-15 CN CN200810041770A patent/CN101651862A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885321A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Watch with microphone |
| CN103885320A (en) * | 2012-12-21 | 2014-06-25 | 鸿富锦精密工业（深圳）有限公司 | Watch with voice playing function |
| US11026250B2 (en) | 2016-05-13 | 2021-06-01 | Huawei Technologies Co., Ltd. | Scheduling method, device, and system |
| WO2019015525A1 (en) * | 2017-07-19 | 2019-01-24 | 中兴通讯股份有限公司 | Hearing aid compatible mobile terminal structure |
| CN109286695A (en) * | 2017-07-19 | 2019-01-29 | 中兴通讯股份有限公司 | Mobile terminal winding structure |
| CN109451411A (en) * | 2018-11-28 | 2019-03-08 | 深圳市南和移动通信科技股份有限公司 | Low interference player module and mobile terminal |
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Application publication date: 20100217 |