CN1642193A - Built-in device of bass loudspeaker and built-in method of portable terminal - Google Patents
Built-in device of bass loudspeaker and built-in method of portable terminal Download PDFInfo
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- CN1642193A CN1642193A CNA2004100781869A CN200410078186A CN1642193A CN 1642193 A CN1642193 A CN 1642193A CN A2004100781869 A CNA2004100781869 A CN A2004100781869A CN 200410078186 A CN200410078186 A CN 200410078186A CN 1642193 A CN1642193 A CN 1642193A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0274—Details of the structure or mounting of specific components for an electrical connector module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
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- Circuit For Audible Band Transducer (AREA)
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- Stereophonic System (AREA)
Abstract
The invention relates to a bass loudspeaker provided with a bass playing region in a portable terminal, the bass loudspeaker includes: a control unit separating an audio communication signal received by the portable terminal into stereo left and right signals and outputting the signals, outputting a low frequency band audio signal in a digital signal manner; an analog conversion unit which converts the low frequency band audio signal outputted from the control unit in a digital signal manner into an analog signal and outputs the signal; a bass amplifying unit which amplifies the audio signal outputted from the analog conversion unit to a predetermined audio level and outputs the signal; a filtering unit which removes medium audio frequency band and high audio frequency band signals in the audio signal outputted from the bass amplifying unit; a bass loudspeaker unit connected with the filtering unit and outputting the audio signal of a bass region. The bass region can be played with a rich volume when using the invention to perform multi-medium communication on the portable terminal, especially when enjoying downloaded moving image signals.
Description
Technical field
The present invention relates in portable terminal device to play the loud speaker of bass zone, particularly relate to and a kind ofly have woofer and with the built-in woofer and the built-in method thereof of the portable terminal device of abundant volume output low frequency zone voice-grade signal.
Background technology
Mobile communication system is used to provide makes networking portable terminal device (MS:MOBILE STATION) can carry out a kind of service that wireless connections are also communicated by letter rapidly with the other side when service area (SERVICE AREA) inherence moves freely.When carrying above-mentioned portable terminal device, no matter when can both communicate with the other side's wireless connections immediately, just because of this advantage, mobile communication system obtains constantly popularizing.
Above-mentioned portable terminal device is when can being convenient for carrying, along with continually developing of technology, additional function is also more and more, under the state that keeps above-mentioned mobile communication function and additional functions, carrying out continuous technological development, make that its weight is lighter, size is littler, further improve its function simultaneously.
Above-mentioned mobile communication system develops into the mode of utilizing the data level signal from the communication mode that utilizes the voice-grade signal at first, now, developed the multimedia level communication mode that on voice-grade signal and data level basis of signals, comprises picture signal service also is being provided.
Adding can realize that the portable terminal device of the mobile communication system of above-mentioned multimedia communication utilizes voice and image etc. to communicate with the other side, and by corresponding value-added service, listens to television broadcasting and appreciate activity video etc.
Generally speaking, for the loud speaker of receiving the audio electrical signal input and exporting with elastic wave audible sound frequency signal, its surface area is big more, and the low-frequency sound output characteristic is good more.
Above-mentioned loud speaker (SPEAKER) is owing to the reason on the characteristic, be difficult to export the signal of all smooth (FLATNESS) audio-bands with certain sound level and acoustic pressure (SPL:SOUND PRESSURE LEVEL), so, be divided into the Squawker (SQUAWKER) of the high pitch loudspeaker (TWEETER) of the voice band signal output that is fit to high pitch frequency band and women, suitable middle pitch frequency band and the male sex's voice band signal output, the woofer (WOOFER) of suitable bass band signal output.
Above-mentioned acoustic pressure is the mean value about the response characteristics curve of the frequency signal of input loud speaker, generally speaking, its width is wide more, big more, and the frequency characteristic of loud speaker is good more, and the frequency partition of above-mentioned high pitch frequency band, middle pitch frequency band, bass frequency band is in response to slightly variant with the difference in field.
Above-mentioned portable terminal device make small portable, so only use a loud speaker, generally use one output wide range loud speaker.
When only using an above-mentioned high pitch loudspeaker or Squawker or woofer, the voice signal that the frequency signal output of other frequency band that can't normally export is distorted, got out of tune or be out of shape, so the signal that will cut off other frequency range is imported respective speaker with voice signal.
When in the limited miniature portable terminal of above-mentioned size, using the loud speaker of general frequency characteristic, particularly be subject under the situation of high pitch loudspeaker of high frequency band and output homogeneous sound pressure signal in use, can't export the abundant signal volume of bass, so have only the voice signal of higher tone color, more stiff.
Therefore, need a kind of technology of utilizing the limited portable terminal device of above-mentioned size that abundant bass band voice signal takes place of exploitation.
The portable terminal device speaker unit of prior art is described with reference to the accompanying drawings.
Fig. 1 is the speaker unit function constitution map of portable terminal device of an example of prior art, Fig. 2 is the speaker unit function constitution map of portable terminal device of another example of prior art, Fig. 3 is that the portable terminal device profile of prior art constitutes key diagram, and they all are used to illustrate prior art.
As shown in Figure 1, in the portable terminal device speaker unit of an example of prior art, the voice-grade signal is from control, monitor, the control unit of managing portable terminal 100 allomeric functions (MSM:MOBILESTATION MODEM) 10 is separated into stereo, output to left side (L) and right side (R) respectively, be enlarged into certain sound level from the right side stereophonic signal of above-mentioned control unit 10 outputs by right side amplifier 22, the left side stereophonic signal is enlarged into certain sound level by left side amplifier 25, combined together by right side amplifier 22 and left side amplifier 25 difference amplifying signals, generally be to insert to be used to export the loud speaker 30 of all frequency bands, and be output as the elastic wave voice-grade signal that the user can hear.
Above-mentioned prior art is to utilize a general loud speaker output to be separated into stereosonic voice-grade signal, so can't listen to stereo audio level signal, in addition, owing to use the loud speaker of general frequency band, there is output band uneven problem in full voice-grade frequency band of voice-grade signal.
As shown in Figure 2, in the portable terminal device boombox device of an example of prior art, in right side amplifier 22 and left side amplifier 25, being separated into voice-grade signal stereo and that output to left side and right side respectively by control unit 10 (in order to control, monitor portable terminal device 100 allomeric functions and operation) is enlarged into certain sound level (LEVEL) and is output, inserting right speaker 32 and left speaker 35 at the signal that is amplified respectively by above-mentioned right side amplifier 22 and left side amplifier 25 and export, output is separated into stereosonic voice-grade signal then.
Generally speaking, compare with the bass zone voice signal, high pitch zone voice signal is easier to around the environment beargarden and is differentiated.Therefore above-mentioned right speaker 32 and left speaker 35 can be used the high pitch loudspeaker that is fit to the voice-grade signal output of high pitch zone.
Promptly, above-mentioned portable terminal device 100 has mobility, be movable to because of using in the serious urban district of noises such as the vehicles, or moving to the serious place of noise such as factory district uses, noisy in above-mentioned surrounding enviroment, as to be difficult to carry out voice-grade conversation place, in order to carry out the voice-grade dialogue, use with high pitch zone voice-grade signal and be output as main high pitch loudspeaker.
As mentioned above, if use high pitch loudspeaker, so when the bass zone voice signal is exported, then can export get out of tune, unpleasant to hear sound, so export from the bass zone that above-mentioned control unit 10 is removed the voice-grade signal, when listening to the voice signal of having removed bass zone, imperceptible bass unit voice signal.
In the portable terminal device 100 of above-mentioned miniaturization, because speaker size is limited, the surface area of loud speaker reduces.The loud speaker that surface area is little is difficult to send bass zone, and in addition, in the place that is difficult to owing to noise and noise etc. with the voice-grade signal communication, in order to communicate with good state, output is based on the voice-grade signal in high pitch zone.
Fig. 3 is the profile pie graph of the portable terminal device 100 of prior art.In more detail,, have the loudspeaker unit 139 of an output audio level voice signal, in above-mentioned loudspeaker unit 139, have a common loud speaker or two boomboxs in the display unit upper end that shows various literal and symbol, image etc.
Lower end in above-mentioned display unit position, constitute the function key unit or the multifunction key unit 180 of input or control portable terminal device 100 various specific functions, in 180 lower ends, above-mentioned multifunction key unit, constitute the dial key unit 185 of signals such as input dial and literal.
As above portable terminal device 100 is intensively distributed with each button in order effectively to utilize limited area to greatest extent with optimum state, to reduce size.The loudspeaker unit of output audio level signal is positioned at the upper end, so that can be adjacent to user's ear unit, display unit has distributed bigger area in order to show more information to greatest extent, and is very limited for the area of loud speaker distribution again.
When using the high pitch loudspeaker of output high pitch zone voice-grade signal in the above-mentioned portable terminal device, bass zone is exported more unpleasant to hearly, so, from sound-source signal, export by the low frequency voice-grade signal of tuning (TUNING) deletion bass zone, though the voice signal of bass zone unit is no longer unpleasant to hear, but problem is the tone color that can't make the tone color of voice-grade signal take a turn for the better or give prominence to bass, and the tone color of the voice-grade signal of output sounds stiff.
When particularly appreciating signal of video signal by multimedia communication, existence can't be appreciated the problem of abundant tone color truly.
Summary of the invention
The object of the invention is to provide a kind of woofer built-in and structure and method of portable terminal device, in the miniature portable terminal, guarantee speaker size to greatest extent, the woofer of output audio bass level signal is installed, thereby can appreciate the multimedia image signal with abundant tone color, improve the tonequality of portable terminal device, the sound equipment of brand new conception is provided.
For achieving the above object, the built-in of the woofer of portable terminal device of the present invention comprises following plurality of units: control unit, the voice-grade signal of communication that it receives portable terminal device is separated into stereosonic left and right sides signal and exports, with digital signal output low frequency band voice-grade signal; The analog-converted unit, it is a bass frequency band bass frequency level conversion of signals of exporting with digital signal from described control unit that analog signal is exported; The bass amplifier unit, it is enlarged into set sound level to the voice-grade signal from the output of described analog-converted unit and exports; Filter unit, it cuts off, removes middle pitch frequency band and high audio band signal from the voice-grade signal of above-mentioned bass amplifier unit output; The woofer unit, it is connected in described filter unit, the voice-grade signal of output bass zone.
For achieving the above object, the present invention also has following structure: in the inner high pitch loudspeaker unit that forms the above stereo sound signal of output bass zone, upper end, portable terminal device display unit position; In the inner woofer unit that forms output bass zone voice signal, the whole lower surface, multifunction key unit of control portable terminal device function, and fixing as a whole with described multifunction key unit.
For achieving the above object, after the present invention can also be separated into stereophonic signal more than the predetermined frequency band to the received signal of portable terminal device, distribute to stereo high pitch loudspeaker in the left and right sides and output respectively, the following bass zone signal of described predetermined frequency band is exported by woofer.
The present invention has following result of use, that is, when utilizing portable terminal device to carry out multimedia communication, when particularly the download activity signal of video signal was appreciated, bass zone can be play with abundant volume.And, because the volume broadcast of bass zone to enrich, thereby can confirm the voice-grade signal that portable terminal device receives exactly.
Brief Description Of Drawings
Fig. 1 is the speaker unit function constitution map of portable terminal device of an example of prior art;
Fig. 2 is the speaker unit function constitution map of portable terminal device of another example of prior art;
Fig. 3 is that the portable terminal device profile of prior art constitutes key diagram;
Fig. 4 is the woofer built-in function constitution map of portable terminal device of the present invention;
Fig. 5 is the frequency characteristic curve diagram of portable terminal device high pitch loudspeaker of the present invention and woofer;
Fig. 6 is the woofer embedding structure and the method key diagram of portable terminal device of the present invention.
*The symbol description that the accompanying drawing formant divides
*
100: portable terminal device 110: control unit
120: right side amplifier 125: the left side amplifier
135: the second high pitch loudspeaker unit, 130: the first high pitch loudspeaker unit
139: high pitch loudspeaker unit 140: the analog-converted unit
150: low playback amplifier 160: filter unit
170: woofer unit 180: the multifunction key unit
185: the dial key unit
Embodiment
Woofer built-in and the structure and the method for portable terminal device of the present invention are described with reference to the accompanying drawings.
Fig. 4 is the woofer built-in function constitution map of portable terminal device of the present invention, Fig. 5 is the frequency characteristic curve diagram of portable terminal device high pitch loudspeaker of the present invention and woofer, Fig. 6 is the woofer embedding structure key diagram of portable terminal device of the present invention, and they all are used to illustrate the present invention.
With reference to Fig. 4, the woofer built-in of portable terminal device of the present invention is by control unit 110, analog-converted unit (DAC:DIGITAL ANALOG CONVERTER) 140, bass amplifier unit 150, filter unit 160, woofer unit 170, right side amplifier unit 120, the first high pitch loudspeaker unit 130, left side amplifier unit 125, the second high pitch loudspeaker unit 135 constitutes, wherein, control unit 110 is used for that the voice-grade signal of communication that mobile communication portable terminal device 100 receives is separated into stereo left and right sides signal to be exported, with the form output low frequency band voice-grade signal of digital signal.Control unit 110 is separated into stereo left and right sides signal to the voice-grade signal of communication that portable terminal device 100 receives, and exports with analogue audio frequency level signal respectively, and the signal of bass zone is exported separately with the form of digital audio level signal after separating.
Analog-converted unit 140 is converted to the digital signal of the bass frequency band low frequency signal that separates by control unit 110 and export analogue audio frequency level signal and exports.
Woofer unit 170 is connected in above-mentioned filter unit 160, the voice-grade signal of bass zone is output as can listens the elastic wave voice signal.
Right side amplifier unit 120 is enlarged into predetermined sound level to the analogue audio frequency level signal that is output as the stereo right-side signal more than the bass zone from above-mentioned control unit 110 and exports;
The first high pitch loudspeaker unit 130 is connected in above-mentioned right side amplifier unit 120, the stereo right audio level signal more than the bass zone is output as can listens the elastic wave voice signal.
Left side amplifier unit 125 is enlarged into predetermined sound level to the voice-grade signal that is output as the stereo left-side signal more than the bass zone from above-mentioned control unit 110 and exports;
The second high pitch loudspeaker unit 135 is connected in above-mentioned left side amplifier unit 125, the stereo left side voice-grade signal more than the bass zone is output as can listens the elastic wave voice signal.
With reference to the accompanying drawings, describe the woofer built-in of the portable terminal device of the present invention 100 that as above constitutes in detail.
The allomeric function of above-mentioned control unit 110 controls, supervision, managing portable terminal 100, analyze the signal that receives, become the voice-grade Signal Separation bass zone and the voice-grade signal more than the bass zone to export, simultaneously, the Signal Separation more than the bass zone is become stereosonic left and right signal and output respectively.
Generally speaking, the division of the bass zone of above-mentioned voice-grade signal is slightly variant because of the difference of device, but, in the portable terminal device of the embodiment of the invention, the voice-grade division of signal following 600 hertz (Hz) is bass zone, by woofer output, be the voice-grade division of signal more than 600 hertz middle pitch and high pitch zone, export by high pitch loudspeaker.
In above-mentioned control unit 110, be the voice-grade Signal Separation by high pitch loudspeaker output to export the stereosonic while, exporting with digital pcm (the PULSE CODE MODULATION-pulse-code modulation) signal of single (MONO) by the voice-grade signal of woofer output with analog signal.
Be access in left side amplifier 125 and right side amplifier 120 from above-mentioned control unit 110 respectively with the left-side signal of stereo output and right-side signal, be enlarged into suitable sound level.Be access in the corresponding high pitch loudspeaker and the output of the first high pitch loudspeaker unit 130 from the analogue audio frequency level high pitch loudspeaker signal of above-mentioned right side amplifier 120 outputs, be access in the corresponding high pitch loudspeaker and the output of the second high pitch loudspeaker unit 135 from the analogue audio frequency level high pitch loudspeaker signal of above-mentioned left side amplifier 125 outputs, thereby send stero set.
Be access in analog-converted unit 140 from above-mentioned control unit 110 with the bass zone signal of PCM digital audio signal output, convert the voice-grade signal of simulation bass zone to after, insert woofer amplifier unit 150, be enlarged into suitable sound level.Bass zone voice-grade signal through amplifying is access in filter unit 160, owing to have only bass zone voice-grade signal to pass through, so cut off, removed the noise signal, bass zone voice-grade signal through above-mentioned cut-out, removal noise signal is access in woofer unit 170, and the bass zone signal is output as the abundant elastic wave audible signal of volume.
As shown in Figure 5, with regard to the frequency characteristic of above-mentioned voice signal by woofer unit 170 output, for example be 600 hertz with lower area, when 100 hertz of outputs during with the voice-grade voice signal of lower area, then performance is be evaluated as outstanding.Generally speaking, for woofer, play with the abundant volume of minimum 50 hertz frequencies.
In addition, as shown in Figure 5, with regard to the frequency characteristic of the voice signal by 135 outputs of high pitch loudspeaker unit, right side 130 and high pitch loudspeaker unit, left side, general scope is 600 hertz to 8000 hertz.
When utilizing the invention described above portable terminal device 100 to carry out multimedia communication or downloading signal of video signal and appreciate, listen to bass frequency band voice-grade signal by other woofer unit 170, so have the advantage of appreciating by sufficient signal volume.
Below with reference to Fig. 6, the woofer embedding structure of portable terminal device of the present invention is described.It comprises high pitch loudspeaker unit 139 and woofer unit 170, wherein, high pitch loudspeaker unit 139 is positioned at the inside, upper end, display unit position of mobile communication portable terminal device 100, be used to export the above stereo sound signal of bass zone, first high pitch loudspeaker unit 130 of the right audio level signal of the above stereophonic signal of bass zone that it is received by output and the second high pitch loudspeaker unit 135 of left side voice-grade signal constitute, the audio signal of output more than 600 hertz.
Below with reference to Fig. 6, describe the woofer embedding structure of aforesaid portable terminal device of the present invention in detail.
Upside at the display unit of the various exploit information that show portable terminal device 100 with forms such as literal, numeral and figures forms high pitch loudspeaker unit 139 structures, it is used to export the above voice-grade signal of bass zone, and it has by corresponding high pitch loudspeaker exports first high pitch loudspeaker unit 130 of stereo left-side signal and the second high pitch loudspeaker unit 135 of right-side signal.
The woofer unit 170 of the audio signal of above-mentioned output bass zone is positioned at structure 180 lower ends, multifunction key unit very thin, that form with the diaphragm switch structure, and all areas that use above-mentioned multifunction key unit 180 to occupy, so be a kind of structure that enlarges the loud speaker surface area.
For the woofer that constitutes above-mentioned woofer unit 170, the surface area that sound takes place is big more, and low frequency characteristic is good more, so, taken all areas of 180 lower ends, multifunction key unit that constitute by diaphragm switch, occupy bigger area to greatest extent.
The first high pitch loudspeaker unit 130 that forms in the above-mentioned high pitch loudspeaker unit 139 and each high pitch loudspeaker of the second high pitch loudspeaker unit 135 as an example, have the structure of output frequency characteristic of voice-grade signal more than 600 hertz.For the woofer that in above-mentioned woofer unit 170, forms, as an example, the bass frequency band voice-grade signal of output below 600 hertz.
So in the portable terminal device 100 of miniaturization, woofer unit 170 is positioned at 180 lower ends, multifunction key unit that are made of diaphragm switch, distribute to the required structure of woofer to what above-mentioned multifunction key unit 180 occupied than large tracts of land.
The woofer built-in method of portable terminal device of the present invention is described with reference to the accompanying drawings.
This method is specific as follows: the received signal of mobile communication portable terminal device 100 is separated into stereophonic signal more than the predetermined frequency band, the right side stereophonic signal of above-mentioned separation is by 130 outputs of first high pitch loudspeaker, the left side stereophonic signal of above-mentioned separation is by 135 outputs of second high pitch loudspeaker, above-mentioned first high pitch loudspeaker 130 and second high pitch loudspeaker 135 form in the high pitch loudspeaker unit 139 that is arranged in the display unit upper end, the following voice-grade bass zone signal of above-mentioned predetermined frequency band is exported by woofer unit 170, woofer unit 170 is made of woofer, in above-mentioned portable terminal device 100, control additional function, woofer unit 170 is inner formation in 180 lower ends, diaphragm multifunction key unit that are used for input order signal, occupies bigger area.
With reference to the accompanying drawings, describe the woofer built-in method of the portable terminal device of the present invention of above-mentioned formation in detail.
Display unit upper end at above-mentioned portable terminal device 100 forms high pitch loudspeaker unit 139, one constitutes first high pitch loudspeaker unit 130 of the stereosonic right-side signal of output and the second high pitch loudspeaker unit 135 of left-side signal in above-mentioned high pitch loudspeaker unit 139, also form the larger area woofer unit 170 that occupies 180 lower ends, multifunction key unit that formed by above-mentioned diaphragm switch simultaneously, output is such as the audio signal more than 600 hertz.
Integrally formed woofer on the whole area that is occupied in above-mentioned woofer unit 170 makes the bass zone audio signal of its output below 600 hertz.
Therefore, in miniature portable terminal 100, occupying the lower end that constitutes, is used to import the multifunction key unit 180 of various control commands than large tracts of land, by diaphragm switch, be assigned as the woofer unit of output bass zone voice-grade signal, thereby comprise the bass zone that volume is abundant, can appreciate the voice-grade signal that portable terminal device receives.
Claims (13)
1. the woofer built-in of portable terminal device is characterized in that comprising as lower unit:
Control unit is separated into stereosonic left and right sides signal in order to the voice-grade signal of communication that portable terminal device is received and exports, with the form output low frequency band voice-grade signal of digital signal;
The analog-converted unit is that analog signal is exported in order to a bass frequency band bass frequency level conversion of signals of exporting with the form of digital signal from described control unit;
The bass amplifier unit is exported in order to the voice-grade signal from the output of described analog-converted unit is enlarged into predetermined sound level;
Filter unit is in order to cut off, to remove by middle pitch frequency band and high audio band signal in the voice-grade signal of described bass amplifier unit output;
The woofer unit is connected in described filter unit, the voice-grade signal of output bass zone.
2. the woofer built-in of portable terminal device according to claim 1 is characterized in that also comprising with lower unit:
The right side amplifier unit is exported in order to the stereo right audio level signal by described control unit output is enlarged into predetermined sound level;
The first high pitch loudspeaker unit, it is connected in described right side amplifier unit, exports stereo right audio level signal;
The left side amplifier unit is exported in order to the stereo left side voice-grade signal by described control unit output is enlarged into predetermined sound level;
The second high pitch loudspeaker unit, it is connected in described left side amplifier unit, exports stereo left side voice-grade signal.
3. portable terminal device according to claim 1, it is characterized in that described control unit is separated into stereo left and right sides signal to the voice-grade signal of communication that is received by described portable terminal device, export with analogue audio frequency level signal respectively, the signal of bass zone is split and is exported with digital audio level signal.
4. woofer that is provided with in portable terminal is characterized in that comprising:
In the inner high pitch loudspeaker unit that is used to export the stereo audio signal more than the bass zone that forms, the upper end of portable terminal device display unit position;
In the woofer unit of the inner output bass zone audio signal that forms in the whole lower surface of the multifunction key unit of controlling the portable terminal device function, and fixing as a whole with described multifunction key unit.
5. the woofer that is provided with in portable terminal according to claim 4 is characterized in that:
Described high pitch loudspeaker unit comprises the first high pitch loudspeaker unit and the second high pitch loudspeaker unit, and the described first high pitch loudspeaker unit and the second high pitch loudspeaker unit are respectively with the right audio level signal and the output of left side voice-grade signal of the above stereophonic signal of bass zone that receives in the portable terminal device communication process.
6. the woofer that in portable terminal, is provided with according to claim 4, it is characterized in that, described woofer unit occupies the whole area of inside, lower end, described portable terminal device multifunction key unit, forms the woofer of output bass zone audio signal.
7. the woofer that is provided with in portable terminal according to claim 6 is characterized in that, described multifunction key unit is used to import the command signal of the special additional function of controlling described portable terminal device, and has the diaphragm switch structure.
8. the woofer that is provided with in portable terminal according to claim 4 is characterized in that, the frequency band audio signal more than 600 hertz that described high pitch loudspeaker unit output portable terminal device receives; With
The frequency band audio signal below 600 hertz that described woofer unit output portable terminal device receives.
9. the woofer built-in method of a portable terminal device, it is characterized in that, the received signal of portable terminal device is isolated stereophonic signal more than the predetermined frequency band, and distribute to the stereo high pitch loudspeaker in the left and right sides and export respectively, the following bass zone signal of described predetermined frequency band is exported by woofer.
10. the woofer built-in method of portable terminal device according to claim 9, it is characterized in that, described high pitch loudspeaker comprises first high pitch loudspeaker and second high pitch loudspeaker, described first high pitch loudspeaker is exported the above right side stereophonic signal of predetermined frequency band that described portable terminal device receives, the above left side stereophonic signal of described second high pitch loudspeaker output predetermined frequency band.
11. the woofer built-in method of portable terminal device according to claim 10, it is characterized in that, described first high pitch loudspeaker and second high pitch loudspeaker are positioned at the high pitch loudspeaker unit of display unit upper end, and form as one with described high pitch loudspeaker unit.
12. the woofer built-in method of portable terminal device according to claim 9 is characterized in that, described woofer is made of the woofer unit of the voice-grade signal below the predetermined frequency band of the described portable terminal device reception of output.
13. the woofer built-in method of portable terminal device according to claim 12 is characterized in that, described woofer unit is inner formation the in lower end, diaphragm multifunction key unit that is used to import described portable terminal device additional function control command signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2004-0002694 | 2004-01-14 | ||
| KR1020040002694A KR100556915B1 (en) | 2004-01-14 | 2004-01-14 | A method and a structure and a apparatus of installing woofer speaker for mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1642193A true CN1642193A (en) | 2005-07-20 |
Family
ID=34880174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100781869A Pending CN1642193A (en) | 2004-01-14 | 2004-09-17 | Built-in device of bass loudspeaker and built-in method of portable terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100556915B1 (en) |
| CN (1) | CN1642193A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497609A (en) * | 2011-11-29 | 2012-06-13 | 宁波东源音响器材有限公司 | Wireless network sound system |
| CN103051774A (en) * | 2011-10-14 | 2013-04-17 | 浪潮乐金数字移动通信有限公司 | Mobile terminal based on multi-unit loudspeaker |
| CN105635466A (en) * | 2015-12-30 | 2016-06-01 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and audio circuit thereof |
| CN103051774B (en) * | 2011-10-14 | 2016-12-14 | 浪潮乐金数字移动通信有限公司 | A kind of mobile terminal based on multi-unit loudspeaker |
| CN106941648A (en) * | 2017-05-03 | 2017-07-11 | 广州市花都区国光音频科技中心（普通合伙） | The multi-functional intelligent sound system of one kind set |
-
2004
- 2004-01-14 KR KR1020040002694A patent/KR100556915B1/en not_active IP Right Cessation
- 2004-09-17 CN CNA2004100781869A patent/CN1642193A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051774A (en) * | 2011-10-14 | 2013-04-17 | 浪潮乐金数字移动通信有限公司 | Mobile terminal based on multi-unit loudspeaker |
| CN103051774B (en) * | 2011-10-14 | 2016-12-14 | 浪潮乐金数字移动通信有限公司 | A kind of mobile terminal based on multi-unit loudspeaker |
| CN102497609A (en) * | 2011-11-29 | 2012-06-13 | 宁波东源音响器材有限公司 | Wireless network sound system |
| CN102497609B (en) * | 2011-11-29 | 2014-12-10 | 宁波东源音响器材有限公司 | Wireless network sound system |
| CN105635466A (en) * | 2015-12-30 | 2016-06-01 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and audio circuit thereof |
| CN105635466B (en) * | 2015-12-30 | 2019-12-13 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and audio circuit thereof |
| CN106941648A (en) * | 2017-05-03 | 2017-07-11 | 广州市花都区国光音频科技中心（普通合伙） | The multi-functional intelligent sound system of one kind set |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100556915B1 (en) | 2006-03-03 |
| KR20050074799A (en) | 2005-07-19 |
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