CN2757456Y - Cell phone with audio frequency play interface - Google Patents
Cell phone with audio frequency play interface Download PDFInfo
- Publication number
- CN2757456Y CN2757456Y CN 200420103705 CN200420103705U CN2757456Y CN 2757456 Y CN2757456 Y CN 2757456Y CN 200420103705 CN200420103705 CN 200420103705 CN 200420103705 U CN200420103705 U CN 200420103705U CN 2757456 Y CN2757456 Y CN 2757456Y
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- China
- Prior art keywords
- audio
- amplifying circuit
- mobile phone
- output
- amplifier
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- Expired - Fee Related
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- 230000005236 sound signal Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010295 mobile communication Methods 0.000 abstract description 2
- 230000008447 perception Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
A cell phone with an audio frequency play interface relates to the technical field of mobile communication technology. The cell phone with an audio frequency play interface comprises a base band chip and an audio processing module, wherein the base band chip is connected with the audio processing module and the audio processing module carries out playing and processing on associated data in the base band chip and outputs audio signals. The utility model also comprises a switch circuit and an amplifying circuit which is provided with an audio playing output interface, wherein the base band chip is connected to a first input terminal of the switch circuit, the audio processing module is connected to a second input terminal of the switch circuit and a first output terminal of the switch circuit is connected to the input terminal of the amplifying circuit. The utility model further comprises a sound box, and the input signals of the sound box are offered by a first audio output interface of an amplifying circuit. The utility model has the advantage that a consumer can listen to music full of stereo perception by means of the external sound box.
Description
[technical field]
The utility model relates to the mobile communication technology field, relates in particular to a kind of mobile phone with voice playing interface.
[background technology]
Along with the development of mobile phone technique, also in order to satisfy consumer's needs, the function of mobile phone is more and more simultaneously.The mobile phone of today has not been the mobile phone of conversation by all means on the simple meaning, but multimedia handset.Audio-frequency function has also developed into a peak as the basic functions of mobile phone to today.Such as ringing sound of cell phone, develop into chord from single-tone, count the tinkle of bells from low chord and develop into high chord and count the tinkle of bells, again to true man's the tinkle of bells of singing in the real sense; For another example mp3 function and radio function are dissolved in the mobile phone.When the user uses these audio-frequency functions in the mobile phone, because the resonance frequency height of the loud speaker that carries on the mobile phone, frequency band is narrow, and harmonic distortion is big, and power is little, the sound that order is played out is not plentiful, tone color is not abundant, lacks stereoeffect, and supper bass can not get good embodiment, therefore can not well embody the rich and varied of sound, some music-lovers' the sense of hearing is not being met.
In addition, present mobile phone is given and is wished that the consumer who plays ringing sound of cell phone or song with audio amplifier makes troubles because there is not direct speaker interface.
[summary of the invention]
The technical problems to be solved in the utility model provides a kind of mobile phone with voice playing interface, audio signal can be outputed to external audio amplifier from mobile phone, satisfies the consumer better in acoustically demand.
The utility model is to realize by following technical scheme:
A kind of mobile phone with voice playing interface comprises baseband chip and audio processing modules, and described baseband chip links to each other with audio processing modules, and described audio processing modules carries out playback process to the related data in the baseband chip, and output audio signal; Also comprise switching circuit and amplifying circuit with voice playing output interface, described baseband chip connects the first input end of switching circuit, described audio processing modules connects second input of switching circuit, and first output of switching circuit links to each other with the input of amplifying circuit.
The utility model further comprises an audio amplifier, and the input signal of described audio amplifier is provided by first audio output interface of described amplifying circuit.
Wherein, described audio amplifier is an active audio amplifier.
The utility model also comprises an earphone, and the input signal of described earphone is provided by second audio output interface of described amplifying circuit.
The utility model further comprises interconnective amplifier and loud speaker, and described amplifier connects second output of described switching circuit.
Owing to adopted above-mentioned technical scheme, make the audio signal in the mobile phone can output to external audio output device, can represent these colourful audio signals better, the consumer can be heard be rich in relief sound, satisfy the demands of consumers better; Also can satisfy a plurality of consumers simultaneously in acoustically demand.
[description of drawings]
Fig. 1 is a system block diagram of the present utility model.
Fig. 2 is the schematic diagram of switching circuit of the present utility model and amplifying circuit.
[embodiment]
As shown in Figure 1, a kind of mobile phone with voice playing interface comprises baseband chip and audio processing modules, and described baseband chip links to each other with audio processing modules, described audio processing modules carries out playback process to the related data in the baseband chip, and output audio signal; Also comprise switching circuit and amplifying circuit with voice playing output interface, described baseband chip connects the first input end of switching circuit, described audio processing modules connects second input of switching circuit, and first output of switching circuit links to each other with the input of amplifying circuit.
In order more ideally to play out described audio signal, the utility model further comprises an audio amplifier, and the input signal of described audio amplifier is provided by first audio output interface of described amplifying circuit.Wherein, described audio amplifier is an active audio amplifier.The requirement of audio amplifier is: 3～32 ohm of input impedance, input signal power: 95mW～1.9W.
The utility model can also comprise an earphone, and the input signal of described earphone is provided by second audio output interface of described amplifying circuit.Described earphone is the earphone that has contact pin, can be connected to second audio output interface of described amplifying circuit.When earphone inserted, switching circuit meeting and amplifying circuit were connected automatically, select the mode AF playing function with earphone.
The utility model also comprises interconnective amplifier and loud speaker, and described amplifier connects second output of described switching circuit.Described audio signal also can be exported at loud speaker at last through the amplifier amplification.
The utility model is on the basis of original mobile phone, has increased switching circuit and amplifying circuit.As shown in Figure 2, switching circuit is in order to select the channel of playing audio signal.Switching circuit has been selected an analog switching ic for use, and wherein, pin 3 is received and the interconnective amplifier of loud speaker; Pin one is received described amplifying circuit; Amplifying circuit is selected the power amplification chip of high-output power for use, LM4853 as state half (National Semiconductor), pin one 0 and pin 8 are formed first audio output interface of amplifying circuit, pin one 0 and pin 6 are formed second audio output interface of amplifying circuit, and the power output of first audio output interface of the power ratio amplifying circuit of its output audio signal is little.
The user carries out can selecting to use the audio amplifier playing audio signal at the mobile phone operation interface, baseband chip can be handled the corresponding data of user-selected function, enable switch circuit and amplifying circuit, audio processing modules is handled the related data that baseband chip sent simultaneously, audio signal is input to switching circuit, pass through the amplification of amplifying circuit again, sound playing is come out in audio amplifier or by the special audio line at last by earphone.
The user can select other play options such as the tinkle of bells, song or broadcast receiver at the mobile phone operation interface, and the special audio line connects the voice playing interface or directly uses earphone convenient and swift, and by shirtsleeve operation, the user just can acoustically be met.
Claims (5)
1, a kind of mobile phone with voice playing interface comprises baseband chip and audio processing modules, and described baseband chip links to each other with audio processing modules, and described audio processing modules carries out playback process to the related data in the baseband chip, and output audio signal; It is characterized in that: also comprise switching circuit and amplifying circuit with voice playing output interface, described baseband chip connects the first input end of switching circuit, described audio processing modules connects second input of switching circuit, and first output of switching circuit links to each other with the input of amplifying circuit.
2, a kind of mobile phone with voice playing interface according to claim 1 is characterized in that: also comprise an audio amplifier, the input signal of described audio amplifier is provided by first audio output interface of described amplifying circuit.
3, a kind of mobile phone with voice playing interface according to claim 2, it is characterized in that: described audio amplifier is an active audio amplifier.
4, a kind of mobile phone with voice playing interface according to claim 1 is characterized in that: also comprise an earphone, the input signal of described earphone is provided by second audio output interface of described amplifying circuit.
5, a kind of mobile phone with voice playing interface according to claim 1 is characterized in that: also comprise interconnective amplifier and loud speaker, described amplifier connects second output of described switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103705 CN2757456Y (en) | 2004-12-31 | 2004-12-31 | Cell phone with audio frequency play interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420103705 CN2757456Y (en) | 2004-12-31 | 2004-12-31 | Cell phone with audio frequency play interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757456Y true CN2757456Y (en) | 2006-02-08 |
Family
ID=35965832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420103705 Expired - Fee Related CN2757456Y (en) | 2004-12-31 | 2004-12-31 | Cell phone with audio frequency play interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757456Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990038A (en) * | 2010-12-02 | 2011-03-23 | 惠州Tcl移动通信有限公司 | Method for improving efficiency of audio power amplifier and mobile phone using the same |
| CN102256202A (en) * | 2011-06-29 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for realizing compatibility of hearing aid by same |
| CN102355518A (en) * | 2011-09-28 | 2012-02-15 | 惠州Tcl移动通信有限公司 | Mobile phone and audio processing method thereof |
-
2004
- 2004-12-31 CN CN 200420103705 patent/CN2757456Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990038A (en) * | 2010-12-02 | 2011-03-23 | 惠州Tcl移动通信有限公司 | Method for improving efficiency of audio power amplifier and mobile phone using the same |
| CN102256202A (en) * | 2011-06-29 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for realizing compatibility of hearing aid by same |
| CN102256202B (en) * | 2011-06-29 | 2014-09-17 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for realizing compatibility of hearing aid by same |
| CN102355518A (en) * | 2011-09-28 | 2012-02-15 | 惠州Tcl移动通信有限公司 | Mobile phone and audio processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060208 Termination date: 20111231 |