CN102752424A - Mobile phone audio output device and method - Google Patents
Mobile phone audio output device and method Download PDFInfo
- Publication number
- CN102752424A CN102752424A CN2012102458439A CN201210245843A CN102752424A CN 102752424 A CN102752424 A CN 102752424A CN 2012102458439 A CN2012102458439 A CN 2012102458439A CN 201210245843 A CN201210245843 A CN 201210245843A CN 102752424 A CN102752424 A CN 102752424A
- Authority
- CN
- China
- Prior art keywords
- port
- output
- audio signal
- power amplifier
- audio
- 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.)
- Pending
Links
Images
Landscapes
- Telephone Function (AREA)
Abstract
The invention discloses a mobile phone audio output device and a mobile phone audio output method. The mobile phone audio output device comprises a three-in-one component, a power amplifier and an audio signal processing circuit. The input end of the power amplifier is connected with the output end of the audio signal processing circuit; the output end of the power amplifier is connected with the input end of the three-in-one component; the audio signal processing circuit comprises a first audio circuit and a second audio circuit; and the output ends of both the first audio circuit and the second audio circuit are connected with an input end phase circuit of the power amplifier. Due to the adoption of the mobile phone audio output device and the method, the manufacturing cost of the mobile phone can be reduced, the design space of the audio output module can be reduced, and the mobile phone is more practical. If the user has a coming call, the mobile phone can shake and play the ring tone at the same time to achieve a better prompting effect.
Description
Technical field
The present invention relates to electronic communication field, relate in particular to the audio frequency export technique of mobile phone.
Background technology
Along with the fast development of electronic communication technology, mobile phone becomes necessary tool in people's daily life.Along with the variation of mobile phone brand, function, the competition more and more fierce of mobile phone market.The performance and the rich functions of lower manufacturing cost, brilliance can make mobile phone enterprise have higher market competition advantage.In the prior art,, often use three-in-one audio parts to realize the function of the loudspeaker of mobile phone, receiver and motor in order to reduce the manufacturing cost of mobile phone.Yet,, can only on above-mentioned three kinds of functions, switch because the audio frequency input circuit of three-in-one device only produces single waveform in the prior art, so utilizes three-in-one device can't realize the function of loudspeaker, receiver and motor simultaneously in the prior art.Like this, receiving when incoming call like the user, can only select to export separately the bell sound or separately the mode of motor vibration point out and answer, answer, the ease for use of mobile phone reduced and can not use in output bell sound the mode of flourishing vibrations to point out.
Summary of the invention
The purpose of this invention is to provide a kind of handset audio output device and method thereof, three-in-one device capable of using is realized the function of audio frequency output and motor vibration simultaneously.
Handset audio output device provided by the present invention comprises three-in-one device, power amplifier and audio signal processing circuit, and the input of said power amplifier is connected with the output of said audio signal processing circuit; The said output of stating power amplifier is connected with the input of said three-in-one device; Said audio signal processing circuit comprises first voicefrequency circuit and second voicefrequency circuit; The output of said first voicefrequency circuit and said second voicefrequency circuit all is connected with the input circuitry phase of said power amplifier.
Handset audio output intent provided by the present invention comprises
Step 1) output is used for first audio signal and second audio signal that is used for vibrating motor of playing back music;
Step 2) first audio signal and second audio signal are carried out signal processing, produce the 3rd audio signal of the frequency characteristic that has playing back music and vibrating motor simultaneously;
Step 3) is carried out power amplification to said the 3rd audio signal;
The 3rd audio signal after step 4) output is amplified.
Handset audio output device provided by the present invention and method thereof; To using the audio output circuit of three-in-one device to improve in the prior art, solved the technical problem of utilizing three-in-one device can not the function of loudspeaker playing back music and vibrating motor be embodied simultaneously.Not only can reduce the manufacturing cost of mobile phone, dwindle the design space of audio frequency output module, also improve the ease for use of mobile phone.Receive when incoming call like the user, can shake simultaneously and play the bell sound, reach and more point out effect.
Description of drawings
The handset audio output device electrical block diagram that Fig. 1 provides for embodiment one;
The handset audio output intent sketch map that Fig. 2 provides for embodiment two.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
As shown in Figure 1, handset audio output device provided by the present invention comprises three-in-one device, power amplifier and audio signal processing circuit, and the input of said power amplifier is connected with the output of said audio signal processing circuit; The said output of stating power amplifier is connected with the input of said three-in-one device; Said audio signal processing circuit comprises first voicefrequency circuit 1 and second voicefrequency circuit; The output of said first voicefrequency circuit 1 and said second voicefrequency circuit all is connected with the input circuitry phase of said power amplifier.It will be appreciated by those skilled in the art that; Said first voicefrequency circuit 1 is used to export first audio signal that is used to play the bell sound; Said first audio signal has rule but the frequency values of variation, and its frequency values is in the scope that people's ear can be heard, promptly in the scope of 20Hz ~ 20000Hz.Said second voicefrequency circuit is used to export second audio signal that is used to shake, and said second audio signal has single frequency values.It will be appreciated by those skilled in the art that; Said first audio signal and said second audio signal form superposed signal at the input of said power amplifier; Said superposed signal has the characteristic of said first audio signal and said second audio signal simultaneously, after receiving said superposed signal, plays realization playing back music and motor vibration function simultaneously thereby can drive said three-in-one device.
Said mobile phone comprises the microprocessor controller that is provided with first output; Said first voicefrequency circuit 1 is connected with said first output; Be used for receiving said microprocessor controller and send signal, thereby it is treated to first audio signal that is suitable for driving said three-in-one device playing back music through said first output.
Said first voicefrequency circuit 1 comprises first capacitor C 11, and said first capacitor C 11 is connected with the inlet circuit of said first output and said power amplifier respectively.Said microprocessor controller also is provided with second output, and the input of said second voicefrequency circuit is connected with said second output, is used to produce second audio signal of single-frequency.
Said second output is universal input and output port (GPIO, General Purpose Input Output).Can adjust the output frequency of said second voicefrequency circuit like this through the output frequency of controlling said GPIO interface, to adapt to the operating characteristic of said three-in-one device.
Said mobile phone also comprises the PMU that is provided with the 3rd output, and the input of said second voicefrequency circuit also can be connected with said the 3rd output, is used to produce second audio signal of single-frequency.Like this, the output frequency of the 3rd output that can also be through controlling said PMU is adjusted the output frequency of said second voicefrequency circuit, to adapt to the operating characteristic of said three-in-one device.
Said second voicefrequency circuit comprises first resistance R 21, second resistance R 22, the 3rd resistance R 23, second capacitor C 22 and the 3rd capacitor C 23; One end of said first resistance R 21 is that the input and the other end of said second voicefrequency circuit is connected with an end of said the 3rd resistance R 23; The other end of said the 3rd resistance R 23 is connected with an end of said the 3rd capacitor C 23, and the other end of said the 3rd capacitor C 23 is the output of said second voicefrequency circuit; Said second capacitor C 22 is connected between said first resistance R 21 and said the 3rd resistance R 23 and other end ground connection with said second resistance R 22 parallelly connected backs one end.It will be appreciated by those skilled in the art that; Said first resistance R 21 and said second resistance R 22 are used for the input signal of said second voicefrequency circuit is carried out dividing potential drop; Said the 3rd resistance R 23 and said the 3rd capacitor C 23 are used for the signal after the dividing potential drop is carried out at a distance from straight filtering, thereby output is suitable for driving second audio signal of said three-in-one device motor vibration.
Said power amplifier comprises the first port A1, the second port A2, the 3rd port A3, the 4th port B3, five-port C1, the 6th port B2, the 7th port C3 and the 8th port C2; Connect the 4th resistance R 34 between the said first port A1 and the second port A2; The input that the said first port A1 is said power amplifier and be connected with the circuit of output terminal of said audio signal processing circuit; Said the 3rd port A3, five-port C1 and the 7th port C3 are the control end of said power amplifier, and said the 4th port B3 is the power end of said power amplifier; Said the 6th port B2 is the earth terminal of said power amplifier; The said second port A2 and the 8th port C2 are the output of said power amplifier and are connected with said three-in-one device; Be connected the 5th resistance R 35 between the said first port A1 and the said audio signal processing circuit; Said microprocessor controller is provided with the control end that is used to control said power amplifier, and said control end is connected with said the 3rd port A3, five-port C1 and the 7th port C3 circuitry phase respectively.
Further, also comprise the 6th resistance R 36 that the end ground connection and the other end are connected with said the 7th port C3.
Further, also comprise the 4th capacitor C 34 that the end ground connection and the other end are connected with said the 3rd port A3 and said five-port C1 respectively.
Further, also comprise the 5th capacitor C 35 that the end ground connection and the other end are connected with said the 4th port B3.
Embodiment two
As shown in Figure 2, present embodiment two provides a kind of handset audio output intent, comprising:
Step 1) output is used for first audio signal and second audio signal that is used for vibrating motor of playing back music;
Step 2) first audio signal and second audio signal are carried out signal processing, produce the 3rd audio signal of the frequency characteristic that has playing back music and vibrating motor simultaneously;
Step 3) is carried out power amplification to said the 3rd audio signal;
The 3rd audio signal after step 4) output is amplified.
It will be appreciated by those skilled in the art that; Because the 3rd audio signal has the frequency characteristic of first audio signal and second audio signal concurrently, after therefore three-in-one device receives said the 3rd audio signal, outputting music and vibrating motor simultaneously; The user uses when need point out; Can carry out with above-mentioned dual mode simultaneously, increase the ease for use of mobile phone, the better purpose that plays prompting.
Further, said step 2) signal processing described in comprises:
Step 21) said second audio signal is carried out dividing potential drop;
Step 22) second audio signal after the dividing potential drop and first audio signal are superposeed.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (13)
1. handset audio output device, it is characterized in that: comprise three-in-one device, power amplifier and audio signal processing circuit, the input of said power amplifier is connected with the output of said audio signal processing circuit; The said output of stating power amplifier is connected with the input of said three-in-one device; Said audio signal processing circuit comprises first voicefrequency circuit (1) and second voicefrequency circuit (2); The output of said first voicefrequency circuit (1) and said second voicefrequency circuit (2) all is connected with the input circuitry phase of said power amplifier.
2. handset audio output device as claimed in claim 1 is characterized in that: said mobile phone comprises the microprocessor controller that is provided with first output, and said first voicefrequency circuit (1) is connected with said first output.
3. handset audio output device as claimed in claim 2; It is characterized in that: said first voicefrequency circuit (1) comprises first electric capacity (C11), and said first electric capacity (C11) is connected with the inlet circuit of said first output and said power amplifier respectively.
4. handset audio output device as claimed in claim 3 is characterized in that: said microprocessor controller also is provided with second output, and the input of said second voicefrequency circuit (2) is connected with said second output.
5. handset audio output device as claimed in claim 4 is characterized in that: said second output is a universal input and output port.
6. handset audio output device as claimed in claim 3 is characterized in that: said mobile phone also comprises the PMU that is provided with the 3rd output, and the input of said second voicefrequency circuit (2) also can be connected with said the 3rd output.
7. like each described handset audio output device in the claim 1 to 6, it is characterized in that: said second voicefrequency circuit (2) comprises first resistance (R21), second resistance (R22), the 3rd resistance (R23), second electric capacity (C22) and the 3rd electric capacity (C23); One end of said first resistance (R21) is that the input and the other end of said second voicefrequency circuit (2) is connected with an end of said the 3rd resistance (R23); The other end of said the 3rd resistance (R23) is connected with an end of said the 3rd electric capacity (C23), and the other end of said the 3rd electric capacity (C23) is the output of said second voicefrequency circuit (2); The parallelly connected back with said second resistance (R22) of said second electric capacity (C22) one end is connected between said first resistance (R21) and said the 3rd resistance (R23) and other end ground connection.
8. handset audio output device as claimed in claim 7 is characterized in that: said power amplifier comprises first port (A1), second port (A2), the 3rd port (A3), the 4th port (B3), five-port (C1), the 6th port (B2), the 7th port (C3) and the 8th port (C2); Connect the 4th resistance R 34 between said first port (A1) and second port (A2); Said first port (A1) is the input of said power amplifier and is connected with the circuit of output terminal of said audio signal processing circuit; Said the 3rd port (A3), five-port (C1) and the 7th port (C3) are the control end of said power amplifier, and said the 4th port (B3) is the power end of said power amplifier; Said the 6th port (B2) is the earth terminal of said power amplifier; Said second port (A2) is connected for the output of said power amplifier and with said three-in-one device with the 8th port (C2); Be connected the 5th resistance (R35) between said first port (A1) and the said audio signal processing circuit; Said microprocessor controller is provided with the control end that is used to control said power amplifier, and said control end is connected with said the 3rd port (A3), five-port (C1) and the 7th port (C3) circuitry phase respectively.
9. handset audio output device as claimed in claim 8 is characterized in that: also comprise the 6th resistance (R36) that the end ground connection and the other end are connected with said the 7th port (C3).
10. handset audio output device as claimed in claim 9 is characterized in that: also comprise the 4th capacitor C 34 that the end ground connection and the other end are connected with said the 3rd port (A3) and said five-port (C1) respectively.
11. handset audio output device as claimed in claim 10 is characterized in that: also comprise the 5th electric capacity (C35) that the end ground connection and the other end are connected with said the 4th port (B3).
12. a handset audio output intent is characterized in that: comprise
Step 1) output is used for first audio signal and second audio signal that is used for vibrating motor of playing back music;
Step 2) first audio signal and second audio signal are carried out signal processing, produce the 3rd audio signal of the frequency characteristic that has playing back music and vibrating motor simultaneously;
Step 3) is carried out power amplification to said the 3rd audio signal;
The 3rd audio signal after step 4) output is amplified.
13. method as claimed in claim 12 is characterized in that: the signal processing said step 2) comprises
Step 21) said second audio signal is carried out dividing potential drop;
Step 22) second audio signal after the dividing potential drop and first audio signal are superposeed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102458439A CN102752424A (en) | 2012-07-17 | 2012-07-17 | Mobile phone audio output device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102458439A CN102752424A (en) | 2012-07-17 | 2012-07-17 | Mobile phone audio output device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102752424A true CN102752424A (en) | 2012-10-24 |
Family
ID=47032320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102458439A Pending CN102752424A (en) | 2012-07-17 | 2012-07-17 | Mobile phone audio output device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102752424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208494A (en) * | 2015-09-30 | 2015-12-30 | 惠州Tcl移动通信有限公司 | Three-in-one audio device |
| CN108429843A (en) * | 2018-06-20 | 2018-08-21 | 深圳市沃特沃德股份有限公司 | Control the method and device of loudspeaker working condition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600714A (en) * | 1994-01-14 | 1997-02-04 | Sound Control Technologies, Inc. | Conference telephone using dynamic modeled line hybrid |
| CN101834930A (en) * | 2010-04-21 | 2010-09-15 | 惠州Tcl移动通信有限公司 | Speaker circuit and terminal of mobile phone |
| CN202872897U (en) * | 2012-07-17 | 2013-04-10 | 上海摩软通讯技术有限公司 | Handset audio frequency circuit |
-
2012
- 2012-07-17 CN CN2012102458439A patent/CN102752424A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600714A (en) * | 1994-01-14 | 1997-02-04 | Sound Control Technologies, Inc. | Conference telephone using dynamic modeled line hybrid |
| CN101834930A (en) * | 2010-04-21 | 2010-09-15 | 惠州Tcl移动通信有限公司 | Speaker circuit and terminal of mobile phone |
| CN202872897U (en) * | 2012-07-17 | 2013-04-10 | 上海摩软通讯技术有限公司 | Handset audio frequency circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208494A (en) * | 2015-09-30 | 2015-12-30 | 惠州Tcl移动通信有限公司 | Three-in-one audio device |
| CN105208494B (en) * | 2015-09-30 | 2019-07-09 | 惠州Tcl移动通信有限公司 | A kind of three-in-one audio devices |
| CN108429843A (en) * | 2018-06-20 | 2018-08-21 | 深圳市沃特沃德股份有限公司 | Control the method and device of loudspeaker working condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104935742B (en) | Communication terminal and the method for improving its tonequality under handset mode | |
| CN101790122B (en) | Plosive eliminating circuit of audio system and mobile communication terminal | |
| CN202872884U (en) | Audio output circuit and mobile terminal | |
| CN105208494B (en) | A kind of three-in-one audio devices | |
| CN205249263U (en) | Bluetooth routing equipment based on bluetooth car kit | |
| CN108600888A (en) | A kind of noise reduction bluetooth headset | |
| CN101834930B (en) | Speaker circuit and terminal of mobile phone | |
| CN102387429A (en) | Audio signal switching device and audio signal transmission system | |
| CN101710911B (en) | Device for realizing audio switchover by using analog switch | |
| CN104254040A (en) | Audio switching system of mobile communication terminal | |
| US8073482B2 (en) | Mobile phone with optional audio output function | |
| CN1816218B (en) | Mobile terminal with at least two transducers | |
| CN102752424A (en) | Mobile phone audio output device and method | |
| CN101594565A (en) | The integrated drive electronics of multifunctional electrical sound generation device | |
| CN202872897U (en) | Handset audio frequency circuit | |
| CN104270698A (en) | Multifunctional power amplification audio device and method thereof | |
| CN201781609U (en) | Mobile phone loudspeaker circuit and mobile phone terminal | |
| CN204360794U (en) | There is the bluetooth equipment of sound-recording function | |
| CN203933885U (en) | A kind of Baffle Box of Bluetooth with NFC communication | |
| CN204721585U (en) | Receiver amplifier | |
| CN201270156Y (en) | MP3 player | |
| CN203340143U (en) | Mobile terminal | |
| CN202103828U (en) | Switching circuit with speaker output being compatible to earphone output and earphone input | |
| CN102394984B (en) | Cellphone and ringtone playing method | |
| CN102546895B (en) | Mobile phone and audio processing circuit thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121024 |