CN1665325A - A method for realizing hearing aid function in mobile telephone - Google Patents
A method for realizing hearing aid function in mobile telephone Download PDFInfo
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- CN1665325A CN1665325A CN200410016655.4A CN200410016655A CN1665325A CN 1665325 A CN1665325 A CN 1665325A CN 200410016655 A CN200410016655 A CN 200410016655A CN 1665325 A CN1665325 A CN 1665325A
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Abstract
The invention discloses a method for implementing the function of hearing aids in a mobile telephone, applied to a mobile telephone system provided with central processing unit (CPU), voice input section, A/D converting section, D/A converting section, power amplifying section and voice output section, and including the steps as follows: the mobile telephone firstly collects sound signal by the voice input section and converts the sound signal to analog electric signal; then converts the analog signal to digital signal through the A/D converting section; transmits the digital signal to the D/A section to convert the digital signal to analog signal; then make power amplification on the analog signal and finally converts the analog signal to sound signal by the voice output section.
Description
[technical field]
The implementation method of the relevant a kind of hearing-aid function of the present invention exactly, relates to a kind of method that realizes function of hearing aid in mobile phone.
[background technology]
High speed development along with mobile communication technology, mobile phone has obtained in the whole world developing rapidly and popularizing, the development of mobile phone and the universal life that has made things convenient for people to a great extent, the time that people carry mobile phone in daily life also gets more and more.Concerning common people, mobile phone has brought very big convenience to them really.But also exist a part that the people of dysaudia is arranged in our life, they must just can reach normal person's hearing by using auditory prosthesis.If they want to use mobile phone with the conveniently life of oneself, then when carrying mobile phone, also need to carry hearing aids, carry both so simultaneously and will certainly make them feel inconvenience.
The patent No. that prior art related to the present invention can be consulted February 23 calendar year 2001 application is 01205764.9 Chinese patent, this patent has disclosed a kind of mobile phone with function of hearing aid, adopts to place the technical scheme of a shared earphone of casing, hearing aids and mobile phone to make mobile phone realize the function of hearing aids together hearing aids movement and mobile phone movement.Yet this set will certainly increase the cost of mobile phone, and directly the implanted hearing aid chip has also increased the weight and the volume of mobile phone, runs counter to towards light, thin, short, little development trend with current consumption electronic products.
[summary of the invention]
The objective of the invention is to overcome above-mentioned defective, a kind of method that realizes function of hearing aid in mobile phone is provided, make mobile phone not need to increase in addition the function that any device just can be realized hearing aids.
The present invention is achieved by the following technical solutions: a kind of method that realizes function of hearing aid in mobile phone, be applied to one and have in CPU, phonetic entry part, A/D conversion portion, D/A conversion portion, power amplifying part and the voice output mobile telephone system partly, comprise the steps: that this mobile phone at first is converted into analog electrical signal by phonetic entry part collected sound signal and with the voice signal that collects; By the A/D conversion portion this analog electrical signal is converted to digital signal then; Then this digital signal is sent into the D/A conversion portion and be converted into analog electrical signal; To carry out power amplification through the analog electrical signal after the D/A conversion by power amplifying part again, the analog electrical signal after will being amplified by the voice output part at last is converted to voice signal.
Described mobile telephone system can also be provided with the speech processes part between described A/D conversion portion and D/A conversion portion, this speech processes part will be sent into described D/A conversion portion after will carrying out speech processes through the digital signal after the described A/D conversion portion again.
The speech processes that described speech processes is partly carried out comprises that background noise suppresses, automatic gain is controlled, three processes of amplitude limit.
Compared with prior art, the present invention adopts the CPU of mobile phone itself to control by software programming, digital signal after the A/D conversion is directly carried out D/A transform the earphone that cooperates mobile phone itself to have, make mobile phone not need to increase any device in addition and just can realize function of hearing aid, thereby make mobile phone under the situation that does not increase cost and weight, enrich its function, convenient for users to use.
[description of drawings]
Fig. 1 is the embodiment of the invention realizes function of hearing aid in mobile phone a structured flowchart.
The theory diagram that Fig. 2 realizes for the embodiment of the invention.
Fig. 3 is the state decision flow chart of the embodiment of the invention when start.
Fig. 4 is the function switching flow figure of the embodiment of the invention when holding state.
Fig. 5 is that the embodiment of the invention is when the hearing aids state and the flow chart that automaticallyes switch of state of mobile phone.
[embodiment]
See also Figure 1 and Figure 2, the present invention utilizes the former device of mobile phone itself that a kind of method that realizes function of hearing aid in mobile phone is provided just, this method is by the CPU of mobile phone self, the phonetic entry part, the A/D conversion portion, the speech processes part, the D/A conversion portion, power amplifying part and voice output partly realize, comprising the steps: 1) this mobile phone at first partly finishes input transducing function by phonetic entry, i.e. and phonetic entry part collected sound signal also is converted to analog electrical signal with the voice signal that collects; 2) secondly this analog electrical signal is converted to digital signal by the A/D conversion portion; 3) then under the control of CPU, this digital signal is carried out speech processes to improve the definition of voice signal, for the user provides suitable hearing compensation by the speech processes part; 4) then will send into the D/A conversion portion and carry out the D/A conversion, be translated into analog electrical signal through the digital signal after the speech processes; 5) will carry out power amplification through the analog electrical signal after the D/A conversion by power amplifying part again; 6) partly finish output transducing function by voice output at last, the analog electrical signal after amplifying is converted to voice signal.
Below the speech processes process of dsp processor is done further narration, described speech processes comprises that background noise suppresses, automatic gain is controlled, three processes of amplitude limit, carries out software programming by dsp processor and realizes.Wherein the background noise process of inhibition suppresses the ambient noise signal in the voice signal, improving the definition of voice, the background noise here is meant noise, noisy voice, automobile that the various plant equipment around the mobile phone produce blow a whistle coloured noise and white noises such as sound.Automatic gain control process carries out power gain control adjustment with the voice signal power and the frequency of input according to user's hearing loss situation.The amplitude limit process is then utilized dsp processor to carry out software programming and will be prevented from user's hearing is constituted infringement above the signal limitations of certain power threshold within threshold value.This speech processes process is existing known technology, thereby is not described in detail in this.
Below introduce and be used to control the method for switching between described mobile phone function of hearing aid and the function of cellular phone in the present embodiment, the state when this method mainly comprises start is judged and the function during standby is switched two aspects.The following state of introducing earlier when starting shooting is judged.See also shown in Figure 3, at first set a parameter S tate who judges the work at present state, initial value can be 0 or 1 (0,1 represents current function of cellular phone state and the hearing aids state of being in of mobile phone respectively), and this parameter is stored among the EEROM, read the parameter S tate of current device operating state in this memory during each the start, if 1, then open function of hearing aid, this moment is by the central processing unit controls microphone, A/D converter, dsp processor, D/A converter, power amplifier device, earphone forms a hearing assistance system, if 0 is opened function of cellular phone, carry out original function by the central processing unit controls mobile phone.
See also shown in Figure 4ly, function during standby is switched and be may further comprise the steps:
1) presses the function switch key of determining to be used for controlling hearing aids/function of cellular phone switching in advance;
2) judge the operating state of current device by working status parameter State;
3) State is the hearing aids state, and then the central processing unit controls mobile phone switches to state of mobile phone by the hearing aids state, carries out function of cellular phone; If State is a state of mobile phone, then the central processing unit controls mobile phone transfers the hearing aids state to, carries out function of hearing aid.
See also shown in Figure 5ly, when mobile phone was in the hearing aids state, function during standby was switched and be may further comprise the steps:
1) judged whether network phone calls;
2), otherwise continue current hearing aids state if there is incoming call then to automatically switch to the function of cellular phone state by CPU;
3) judge whether conversation finishes;
4), otherwise continue to carry out current function of cellular phone if end of conversation then recovers hearing aids state before.
The present invention adopts the CPU of mobile phone itself to control by software programming, digital signal after the A/D conversion is directly carried out D/A transform the earphone that cooperates mobile phone itself to have, make mobile phone not need to increase any device in addition and just can realize function of hearing aid, thereby make mobile phone under the situation that does not increase cost and weight, enrich its function, convenient for users to use.
Claims (3)
1. method that in mobile phone, realizes function of hearing aid, be applied to one and have in CPU, phonetic entry part, A/D conversion portion, D/A conversion portion, power amplifying part and the voice output mobile telephone system partly, comprise the steps: that this mobile phone at first is converted into analog electrical signal by phonetic entry part collected sound signal and with the voice signal that collects; By the A/D conversion portion this analog electrical signal is converted to digital signal then; Then this digital signal is sent into the D/A conversion portion and be converted into analog electrical signal; To carry out power amplification through the analog electrical signal after the D/A conversion by power amplifying part again, the analog electrical signal after will being amplified by the voice output part at last is converted to voice signal.
2. a kind of method that in mobile phone, realizes function of hearing aid as claimed in claim 1, its feature also is: described mobile telephone system can also be provided with the speech processes part between described A/D conversion portion and D/A conversion portion, this speech processes part will be sent into described D/A conversion portion after will carrying out speech processes through the digital signal after the described A/D conversion portion again.
3. a kind of method that realizes function of hearing aid in mobile phone as claimed in claim 2, its feature also is: the speech processes that described speech processes is partly carried out comprises that background noise suppresses, automatic gain is controlled, three processes of amplitude limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410016655.4A CN1665325A (en) | 2004-03-01 | 2004-03-01 | A method for realizing hearing aid function in mobile telephone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200410016655.4A CN1665325A (en) | 2004-03-01 | 2004-03-01 | A method for realizing hearing aid function in mobile telephone |
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| CN1665325A true CN1665325A (en) | 2005-09-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577751A (en) * | 2009-03-05 | 2009-11-11 | 上海闻泰电子科技有限公司 | Method for mobile terminal to realize function of hearing aid |
| CN101964834A (en) * | 2009-07-21 | 2011-02-02 | 深圳市福智软件技术有限公司 | Mobile communication device with hearing-aid function and method thereof for realizing hearing-aid of earphone |
| CN102111476A (en) * | 2009-12-24 | 2011-06-29 | 康佳集团股份有限公司 | Mobile terminal and method for amplifying ambient sound by using mobile terminal |
| CN102300002A (en) * | 2011-09-19 | 2011-12-28 | 北京百纳威尔科技有限公司 | Mobile terminal and hearing aiding processing method thereof |
| CN102724360A (en) * | 2012-06-05 | 2012-10-10 | 创扬通信技术（深圳）有限公司 | Method and device for implementation of hearing-aid function of mobile phone and hearing-aid mobile phone |
| CN102868961A (en) * | 2011-07-05 | 2013-01-09 | 富泰华工业（深圳）有限公司 | Handheld electronic device with function of hearing aid |
-
2004
- 2004-03-01 CN CN200410016655.4A patent/CN1665325A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577751A (en) * | 2009-03-05 | 2009-11-11 | 上海闻泰电子科技有限公司 | Method for mobile terminal to realize function of hearing aid |
| CN101964834A (en) * | 2009-07-21 | 2011-02-02 | 深圳市福智软件技术有限公司 | Mobile communication device with hearing-aid function and method thereof for realizing hearing-aid of earphone |
| CN102111476A (en) * | 2009-12-24 | 2011-06-29 | 康佳集团股份有限公司 | Mobile terminal and method for amplifying ambient sound by using mobile terminal |
| CN102868961A (en) * | 2011-07-05 | 2013-01-09 | 富泰华工业（深圳）有限公司 | Handheld electronic device with function of hearing aid |
| CN102300002A (en) * | 2011-09-19 | 2011-12-28 | 北京百纳威尔科技有限公司 | Mobile terminal and hearing aiding processing method thereof |
| CN102724360A (en) * | 2012-06-05 | 2012-10-10 | 创扬通信技术（深圳）有限公司 | Method and device for implementation of hearing-aid function of mobile phone and hearing-aid mobile phone |
| CN102724360B (en) * | 2012-06-05 | 2015-05-20 | 创扬通信技术（深圳）有限公司 | Method and device for implementation of hearing-aid function of mobile phone and hearing-aid mobile phone |
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