CN201444650U - Mobile terminal for realizing 3D sound effect function - Google Patents
Mobile terminal for realizing 3D sound effect function Download PDFInfo
- Publication number
- CN201444650U CN201444650U CN2008201582438U CN200820158243U CN201444650U CN 201444650 U CN201444650 U CN 201444650U CN 2008201582438 U CN2008201582438 U CN 2008201582438U CN 200820158243 U CN200820158243 U CN 200820158243U CN 201444650 U CN201444650 U CN 201444650U
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- sound chamber
- audio frequency
- power amplifier
- audio
- frequency power
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Abstract
The utility model relates to a mobile terminal for realizing 3D sound effect function, aiming at realizing better tone quality of the mobile terminal, especially enhancing 3D music effect. By being added with an analog switch and a 3D sound effect power amplifier, the mobile terminal leads a user to realize 3D loud speaker function of an FM loudspeaker and can play by being freely switched between the audio frequency stored inside a mobile phone and the audio frequency played by the FM. In addition, the mobile terminal can adjust the structure of a sound cavity arranged inside the loudspeaker for closely embedding and adding a side sound outlet hole; and two loudspeakers are completely separated from each other and keep a certain distance, so that 3D sound effect can be realized under the limited resource to the utmost extent, and the quality of the mobile phone is improved.
Description
Technical field
The utility model relates to portable terminal, particularly a kind of portable terminal of realizing 3D audio function.
Background technology
Along with development of technology, mobile phone is when emphasizing portability, and the user begins the amusement function of mobile phone is more had higher requirement.Wherein, audio becomes the emphasis of concern.Mobile phone on the market normally adopts D class or AB class power amplifier to drive single loudspeaker or double horn now, and sound is thin, and musical expression is relatively poor, can not show by the level that music is abundant.The difference of 3D technology and traditional method maximum is that it can only utilize one group of loudspeaker or earphone, just can send stereophone true to nature, orients the source of sound of diverse location at one's side around the user.In mobile phone is used because the application of effects limit 3D audio such as handset size, loud speaker be less is less.
Summary of the invention
For realizing above-mentioned function of use, the utility model provides a kind of portable terminal of the 3D of realization audio function.For solving the problems of the technologies described above, the technical solution of the utility model comprises following content:
A kind of portable terminal of realizing 3D audio function comprises audio frequency power amplifier and the loud speaker that is connected with audio frequency power amplifier, and described audio frequency power amplifier is the 3D audio frequency power amplifier, and the base band integrated chip links to each other by the 3D effect control end of general purpose I/O interface with this 3D audio frequency power amplifier.
Described portable terminal also comprises an audio frequency simulation diverter switch, and this switch input terminal links to each other with base band integrated chip audio output with terminal FM module audio output, and this output switching terminal links to each other with the input of 3D audio frequency power amplifier.
Described loud speaker embeds in the sound chamber, sound chamber, sound chamber, back before this sound chamber is divided, and speaker seal embeds sound chamber, back.
Sound chamber, described back places on the cell phone mainboard, and fits tightly with it.
The both sides in sound chamber have two grooves before described, connect the opening that side, sound chamber and loud speaker embed preceding sound chamber.
By technique scheme, the beneficial effects of the utility model are:
The utility model makes the user realize the outer playing function of FM loud speaker 3D by increasing analog switch and 3D audio power amplifier, and freely switches in playing mobile phone storing audio and FM audio plays.In addition, the utility model is also by to the operatic tunes structural adjustment that loud speaker placed, and carries out airtight embedding, opens and add the side direction sender, two loud speakers are separated fully, and keep certain distance, under limited resources, realize the 3D audio to greatest extent, improved the quality of mobile phone.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is set forth.
Fig. 1 is the audio frequency of mobile terminal system construction drawing
Fig. 2 is the audio system structure chart of embodiment
Fig. 3 sound chamber structural map
3D figure in sound chamber behind Figure 43 D sound chamber
3D figure in sound chamber before Figure 53 D sound chamber
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
The utility model system configuration principle as shown in Figure 1, the hardware of the platform motherboard of present embodiment connects and device is specifically selected for use as shown in Figure 2, FM IC (Frequency Modulation Integrated Circuit, the frequency modulation integrated circuit, under be called for short FM IC) select RDA5800C for use, BBIC (Baseband IntegratedCircuit, the base band integrated circuit, under be called for short BBIC) select SC6600H for use, the audio frequency simulation switch is selected PI3A223ZME for use, and the AB class audio frequency power amplifier with 3D reinforced effects is selected TS4997 for use.The audio frequency simulation switch left and right acoustic channels FM_LOUT/FM_ROUT by FM respectively links to each other with FMIC and links to each other with BBIC with the left and right acoustic channels HEADPHR/HEADPHL of MP3 by BBIC, with when the selected FM of user or MP3, the MIDI function, corresponding selected FM or BBIC voice-grade channel cut pass to 3D audio frequency power amplifier TS4997, and the 3D power amplifier is connected loud speaker by the COM end HEADPHL '/HEADPHR ' connection audio frequency simulation switch of audio frequency simulation switch with two groups of 3D audio output interface: SPKL+/SPKL-, SPKR+/SPKR-by 3D audio frequency power amplifier TS4997 respectively.BBIC also links to each other with the 3D power amplifier by two GPIO:3D_EFFECT0/3D_EFFECT1, with the audio frequency effect of control 3D power amplifier.
The 3D reinforced effects AB class audio frequency power amplifier TS4997 power amplifier that present embodiment is selected for use provides multiple voice playing effect for the user, loudspeaker plays is defaulted as stereo mode, obtain the 3D audio of enhancing, the user can select totally 4 kinds of patterns in menu audio pattern: stereo mode, one-level 3D effect, secondary 3D effect, three grades of 3D effects.Three grades of 3D effects are the strongest patterns of 3D effect.The user is when regulating audio, and BBIC SC6600H can control 3D power amplifier TS4997, according to the pattern of customer selecting corresponding 3D_EFFECT0,3D_EFFECT1 value is set, thereby reaches the purpose of adjusting 3D audio.3D effect control truth table and corresponding result of broadcast are as shown in the table in the present embodiment, wherein the corresponding 3D_EFFECT0 of 3D0, the corresponding 3D_EFFECT1 of 3D1, the corresponding stereo mode of off, the corresponding one-level 3D effect of low, the corresponding secondary 3D effect of medium, the corresponding three grades of 3D effects of high.
3D effect settings
| 3D effect level | 3D0 | 3D1 |
| OFF | 0 | 0 |
| LOW | 0 | 1 |
| MEDIUM | 1 | 0 |
| HIGH | 1 | 1 |
Wherein, loud speaker places in the sound chamber, sound chamber structure decomposes as shown in Figure 3, Fig. 3-1 is the sound chamber by from top to bottom STRUCTURE DECOMPOSITION figure, sound chamber, loud speaker and sound chamber, back before being respectively, Fig. 3-2 STRUCTURE DECOMPOSITION figure from the bottom to top is respectively sound chamber, back, loud speaker and preceding sound chamber, loud speaker embeds respectively in the circular open in sound chamber and preceding sound chamber behind the sound chamber, and the circle of sound chamber, front and back circular open size and loud speaker positive and negative is outstanding big or small consistent.Back sound chamber specifically as shown in Figure 4, sound chamber integral body has adopted the structure in sealing sound chamber: two loud speakers are embedded in two circular opens in sound chamber, back, circular open is tightly connected with the embedded part of loud speaker, and this sound chamber, back is placed on the cell phone mainboard, and tight with the cell phone mainboard applying, two loud speakers are separated fully.And for example shown in Figure 5, the both sides in preceding sound chamber have two grooves, connect circular open and side, sound chamber that loud speaker embeds, and with as the loud speaker sender, mobile phone is the side pronunciation.Like this two loud speaker sounding are separated to greatest extent, and keep certain distance, realized the purpose of 3D audio to greatest extent.
Being the embodiment of utility model only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be technology category of the present utility model.
Claims (5)
1. portable terminal of realizing 3D audio function, comprise audio frequency power amplifier and the loud speaker that is connected with audio frequency power amplifier, it is characterized in that: described audio frequency power amplifier is the 3D audio frequency power amplifier, and the base band integrated chip links to each other by the 3D effect control end of general purpose I/O interface with this 3D audio frequency power amplifier.
2. according to the described portable terminal of claim 1, it is characterized in that: also comprise an audio frequency simulation diverter switch, this switch input terminal links to each other with base band integrated chip audio output with terminal FM module audio output, and this output switching terminal links to each other with the input of 3D audio frequency power amplifier.
3. according to the described portable terminal of claim 1, it is characterized in that: described loud speaker embeds in the sound chamber, sound chamber, sound chamber, back before this sound chamber is divided, and speaker seal embeds sound chamber, back.
4. according to the described portable terminal of claim 3, it is characterized in that: sound chamber, described back places on the cell phone mainboard, and fits tightly with it.
5. according to the described portable terminal of claim 3, it is characterized in that: the both sides in sound chamber have two grooves before described, connect the opening that side, sound chamber and loud speaker embed preceding sound chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201582438U CN201444650U (en) | 2008-12-30 | 2008-12-30 | Mobile terminal for realizing 3D sound effect function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201582438U CN201444650U (en) | 2008-12-30 | 2008-12-30 | Mobile terminal for realizing 3D sound effect function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444650U true CN201444650U (en) | 2010-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201582438U Expired - Fee Related CN201444650U (en) | 2008-12-30 | 2008-12-30 | Mobile terminal for realizing 3D sound effect function |
Country Status (1)
| Country | Link |
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| CN (1) | CN201444650U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340563A (en) * | 2010-07-27 | 2012-02-01 | 上海闻泰电子科技有限公司 | Method for eliminating TDD (time division duplex) noise of FM (frequency modulation)-GSM (global system for mobile communications) mobile phone |
| CN104768101A (en) * | 2014-12-29 | 2015-07-08 | 青岛歌尔声学科技有限公司 | Audio multiplexing circuit, audio multiplexing system and audio multiplexing method |
| CN105120405A (en) * | 2015-09-16 | 2015-12-02 | 上海斐讯数据通信技术有限公司 | Sound playing control method, sound playing control device and intelligent terminal |
| CN105208470A (en) * | 2015-09-22 | 2015-12-30 | 天津市金汇兴自行车有限公司 | Loudspeaker support in communication device and communication device |
-
2008
- 2008-12-30 CN CN2008201582438U patent/CN201444650U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340563A (en) * | 2010-07-27 | 2012-02-01 | 上海闻泰电子科技有限公司 | Method for eliminating TDD (time division duplex) noise of FM (frequency modulation)-GSM (global system for mobile communications) mobile phone |
| CN104768101A (en) * | 2014-12-29 | 2015-07-08 | 青岛歌尔声学科技有限公司 | Audio multiplexing circuit, audio multiplexing system and audio multiplexing method |
| CN104768101B (en) * | 2014-12-29 | 2018-08-24 | 青岛歌尔声学科技有限公司 | Audio-frequency multiplex circuit and system |
| CN105120405A (en) * | 2015-09-16 | 2015-12-02 | 上海斐讯数据通信技术有限公司 | Sound playing control method, sound playing control device and intelligent terminal |
| CN105208470A (en) * | 2015-09-22 | 2015-12-30 | 天津市金汇兴自行车有限公司 | Loudspeaker support in communication device and communication device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |