CN104244140A - Amplification device, portable electronic device and audio presentation module - Google Patents
Amplification device, portable electronic device and audio presentation module Download PDFInfo
- Publication number
- CN104244140A CN104244140A CN201310247015.3A CN201310247015A CN104244140A CN 104244140 A CN104244140 A CN 104244140A CN 201310247015 A CN201310247015 A CN 201310247015A CN 104244140 A CN104244140 A CN 104244140A
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- terminal
- contact point
- electron device
- portable electron
- public address
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Abstract
The invention provides a portable electronic device which is used for allowing an amplification device to be connected in an insertion mode. The amplification device comprises a first loudspeaker. The portable electronic device comprises a main chip, a diverter switch and a second loudspeaker, wherein the main chip is electrically connected with the diverter switch, and the main chip is used for detecting whether the amplification device is connected into the portable electronic device or not and controlling the diverter switch to establish electric connection with the first loudspeaker or the second loudspeaker according to the detecting result. When the amplification device is connected into the portable electronic device, the diverter switch is electrically connected with the first loudspeaker, and when the amplification device is not connected into the portable electronic device, the diverter switch is electrically connected with the second loudspeaker. The invention further provides the amplification device and an audio presentation module with the amplification device and the portable electronic device applied. The amplification device is simple in structure and convenient for a user to carry.
Description
Technical field
The present invention relates to a kind of public address set, particularly relate to and be a kind ofly applied to the public address set of portable electron device and there is the audio frequency player module of this public address set and portable electron device.
Background technology
Along with wireless communication technology, the developing rapidly and the raising day by day of people's living standard of the information processing technology, mobile phone, personal digital assistant (personal digital assistant, etc. PDA) portable electron device competitively emerges in large numbers, and consumer requires more and more higher to the pronunciation volume of these portable electron devices and tonequality.But the tonequality volume of the inner loud speaker carried of these portable electron devices can not meet consumer's requirement, thus usual at outside grafting one public address set of these portable electron devices, still can to know in distance portable electron device larger distance to make consumer and hear sound.The battery supply that existing public address set generally includes loud speaker, audio amplifier circuit and powers for audio amplifier circuit, thus the heavier mass of public address set, volume are comparatively large, be not easy to carry, and price comparison are expensive; The another kind of public address set without the need to Power supply is then utilize the megaphone of Physical Property Structure to amplify mancarried device pronunciation, and this public address set amplifying effect is not good, is unfavorable for Consumer's Experience.
Summary of the invention
In view of the above circumstances, be necessary to provide one without the need to additional power source and the good public address set of amplifying effect.
Separately, the portable electron device that a kind of this public address set of application is provided is necessary.
Separately, there is a need to provide a kind of audio frequency player module with above-mentioned portable electron device and public address set.
A kind of public address set, it is plugged in a portable electron device, described portable electron device comprises master chip and diverter switch, described public address set comprises the first loud speaker and joint, described first loud speaker comprises the first anode interface and the first negative pole interface, described joint comprises the first terminal, second terminal, 3rd terminal and the 4th terminal, described the first terminal and the second terminal are connected with the first anode interface and the first negative pole interface, and described the first terminal and the second terminal are used for being connected with diverter switch, described 3rd terminal is by one first grounding through resistance, described 4th terminal ground, and described 3rd terminal and the 4th terminal are used for being connected with master chip.
A kind of portable electron device, it is for supplying a public address set grafting, described public address set comprises the first loud speaker, the first terminal, second terminal, 3rd terminal and the 4th terminal, described portable electron device comprises master chip, diverter switch and the second loud speaker, described master chip and diverter switch are electrically connected, described diverter switch is used for being connected with the first terminal and the second terminal, described master chip is used for being connected with the 3rd terminal and the 4th terminal, whether described master chip accesses portable electron device for detecting public address set, and set up according to detecting output control diverter switch and the first loud speaker or the second loud speaker and be electrically connected, when public address set access portable electron device, diverter switch and the first loud speaker are electrically connected, when public address set does not access portable electron device, diverter switch and the second loud speaker are electrically connected.
A kind of audio frequency player module, it comprises portable electron device and public address set, described portable electronic is used for for described public address set grafting, described public address set comprises the first loud speaker, the first terminal, second terminal, 3rd terminal and the 4th terminal, described portable electron device comprises master chip, diverter switch and the second loud speaker, described master chip and diverter switch are electrically connected, described diverter switch is used for being connected with the first terminal and the second terminal, described master chip is used for being connected with the 3rd terminal and the 4th terminal, whether described master chip accesses portable electron device for detecting public address set, and set up according to detecting output control diverter switch and the first loud speaker or the second loud speaker and be electrically connected, when public address set access portable electron device, diverter switch and the first loud speaker are electrically connected, when public address set does not access portable electron device, diverter switch and the second loud speaker are electrically connected.
By arranging detecting port in this portable electron device inside, the present invention judges whether public address set accesses, thus control diverter switch this portable electron device and the first loud speaker or the second loud speaker are connected, the function pronounced in the inside realizing this portable electron device and the function that outside amplifies.Meanwhile, this public address set structure is simple, is convenient to user and carries, greatly reduce the design cost of this public address set, improve the market competitiveness of this public address set.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the portable electron device of the embodiment of the present invention.
Fig. 2 is the functional block diagram of the public address set of the embodiment of the present invention.
Fig. 3 is the frequency response chart that the portable electron device of the embodiment of the present invention applies this public address set.
Fig. 4 is the signal to noise ratio figure that the portable electron device of the embodiment of the present invention applies this public address set.
Main element symbol description
| Portable electron device | 100 |
| Second loud speaker | 10 |
| Second anode interface | 11 |
| Second negative pole interface | 12 |
| Diverter switch | 20 |
| First quiet contact point | 21 |
| Second quiet contact point | 22 |
| First dynamic contact point | 23 |
| Second dynamic contact point | 24 |
| 3rd dynamic contact point | 25 |
| 4th dynamic contact point | 26 |
| Access pin | 27 |
| Audio frequency amplifier | 30 |
| First output pin | 31 |
| Second output pin | 32 |
| 3rd pin | 33 |
| Master chip | 50 |
| First controls pin | 51 |
| Second controls pin | 52 |
| Detecting pin | 53 |
| Grounding pin | 54 |
| Public address set | 200 |
| First loud speaker | 210 |
| First anode interface | 211 |
| First negative pole interface | 212 |
| Joint | 220 |
| The first terminal | 221 |
| Second terminal | 222 |
| 3rd terminal | 223 |
| 4th terminal | 224 |
| First resistance | R1 |
| Second resistance | R2 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Figure 1 shows that portable electron device 100 disclosed in the embodiment of the present invention, this portable electron device 100 can be mobile phone, panel computer, personal digital assistant etc.
Please consult Fig. 2 further, the pluggable public address set 200 of this portable electron device 100, to realize audio frequency enlarging function by this public address set 200.This public address set 200 comprises the first loud speaker 210 and joint 220.This joint 220 comprises the first terminal 221, second terminal 222, the 3rd terminal 223 and the 4th terminal 224, the audio signal that this first terminal 221 and the second terminal 222 send for receiving portable electron device 100,3rd terminal 223 passes through the first resistance R1 ground connection, the 4th terminal 224 ground connection.This first loud speaker 210 comprises the first anode interface 211 and the first negative pole interface 212, and this first anode interface 211 and the first negative pole interface 212 are electrically connected with the first terminal 221 and the second terminal 222 respectively, to play the audio signal that joint 220 receives.
This portable electron device 100 comprises the second loud speaker 10, diverter switch 20, audio frequency amplifier 30 and master chip 50.This audio frequency amplifier 30 is connected (not shown) with the audio conversion circuit in portable electron device 100, in order to receive and amplify audio conversion circuit transmit audio signal.
It is inner that this second loud speaker 10 is placed in portable electron device 100, and for the audio signal that audio reception amplifier 30 sends, it comprises the second anode interface 11 and the second negative pole interface 12.
This diverter switch 20 is double-point double-throw switch, and it comprises the dynamic contact point 24 of the first quiet contact point 21, second quiet contact point 22, first dynamic contact point 23, second, the 3rd dynamic contact point 25, the 4th dynamic contact point 26 and access pin 27.Switchably dynamic contact point 23 and the second dynamic contact point 24 are electrically connected with first for this first quiet contact point 21 and the second quiet contact point 22, or be electrically connected with the 3rd dynamic contact point 25 and the 4th dynamic contact point 26, the signal that this access pin 27 sends for receiving master chip 50.In the present embodiment, this first dynamic contact point 23 and the second dynamic contact point 24 are respectively used to be electrically connected with the first anode interface 211 and the first negative pole interface 212; 3rd dynamic contact point 25 and the 4th dynamic contact point 26 are connected with the second anode interface 11 and the second negative pole interface 12 respectively.
This audio frequency amplifier 30 comprises the first output pin 31, second output pin 32 and the 3rd pin 33, this first output pin 31 and the second output pin 32 respectively contact point 21 quiet with first and the second quiet contact point 22 are connected, rear audio signal is amplified, the signal that the 3rd pin 33 sends for receiving master chip 50 for exporting.
This master chip 50 is the central processing element of portable electron device 100, and it comprises the first control pin 51, second and controls pin 52, detecting pin 53 and grounding pin 54.This first control pin 51 is connected with the 3rd pin 33 of audio frequency amplifier 30, for sending digital signal to audio frequency amplifier 30, and then controls the multiplication factor of audio frequency amplifier 30 to the audio signal received.This second controls pin 52 and is connected with the access pin 27 of diverter switch 20, and the quiet contact point 22 of the in order to control diverter switch 20 first quiet contact point 21, second switches the quiet contact point 22 of the first quiet contact point 21, second being electrically connected at the first dynamic contact point 24 of dynamic contact point 23, second or controlling diverter switch 20 simultaneously and switches simultaneously and be electrically connected at the 3rd and move contact point 25 and the 4th and move between contact point 26.This detecting pin 53 is electrically connected by an one second resistance R2 and power supply V, and this detecting pin 53 for detecting its whether electrical with the 3rd terminal 223 of public address set 200 grafting, and then judges whether public address set 200 accesses in this portable electron device 100.This grounding pin 54 for being electrically connected with the 4th terminal 224, with by the 4th terminal 224 ground connection.When public address set 200 accesses in portable electron device 100, detecting pin 53 and grounding pin 54 are set up and are electrically connected.Because this detecting pin 53 is by the first resistance R1 ground connection, so time this detecting pin 53 be in low level (such as 1V), the quiet contact point 22 of the first quiet contact point 21, second that master chip 50 controls diverter switch 20 is electrically connected at the first dynamic contact point 23 and the second dynamic contact point 24 respectively; When public address set 200 does not access in portable electron device 100, detecting pin 53 connects power supply by the second resistance R2, now detect pin 53 and be in high level, the quiet contact point 22 of the first quiet contact point 21, second that master chip 50 controls diverter switch 20 is electrically connected at the 3rd dynamic contact point 25 and the 4th dynamic contact point 26 respectively.
Above-mentioned portable electron device 100 and this public address set 200 form an audio frequency player module jointly, utilize this audio frequency player module, can realize the sound amplification function of this portable electron device 100.
Introduce the operation principle of this portable electron device 100 and this public address set 200 below further:
When this portable electron device 100 uses the second loud speaker 10 carried, because detecting pin 53 directly meets power supply V by the second resistance R2, the detecting pin 53 of this master chip 50 is in high level.Master chip 50 control diverter switch 20 by the quiet contact point 22 of the first quiet contact point 21, second respectively with the 3rd dynamic contact point 25, the 4th dynamic contact point 26 set up electric connection.Simultaneously, master chip 50 sends digital signal (such as digital signaling zero 01) to audio frequency amplifier 30, and then controlling the multiplication factor of audio frequency amplifier 30 to the audio signal received, the audio signal after audio frequency amplifier 30 amplifies is sent in the second loud speaker 10 by the first output pin 31 and the second output pin 32.
When this portable electron device 100 uses public address set 200, the first terminal 221, second terminal 222, the 3rd terminal 223 and the 4th terminal 224 on this public address set 200 respectively with first on portable electron device 100 the dynamic contact point 24 of dynamic contact point 23, second, detect pin 53 and grounding pin 54 and set up and be electrically connected.Because this detecting pin 53 is by the first resistance R1 and the second resistance R2 series connection ground connection, therefore the level of this detecting pin 53 is in low level by dragging down.Now, master chip 50 control diverter switch 20 by the quiet contact point 22 of the first quiet contact point 21, second respectively with first the dynamic contact point 24 of dynamic contact point 23, second connect, simultaneously, master chip 50 sends digital signal (such as digital signaling zero 10) to audio frequency amplifier 30, and then controlling the multiplication factor of audio frequency amplifier 30 to the audio signal received, the audio signal after audio frequency amplifier 30 amplifies is sent in the first loud speaker 210 by the first output pin 31 and the second output pin 32.Fig. 3 is the first loud speaker 210 of this public address set 200 and the frequency response chart of this portable electron device 100 second loud speaker 10, Fig. 4 is the first loud speaker 210 of this public address set 200 and the signal to noise ratio figure of this portable electron device 100 second loud speaker 10, wherein, curve A represents the performance diagram of the first loud speaker 210, curve B represents the performance diagram of the second loud speaker 10, from Fig. 3 and Fig. 4, the volume after this public address set 200 amplifies and tonequality are obviously better than volume and the tonequality of this portable electron device 100 self pronunciation.
By arranging detecting pin 53 in this portable electron device 100 inside, the present invention judges whether public address set 200 accesses, thus control diverter switch 20 this portable electron device 100 and the first loud speaker 210 or the second loud speaker 10 are connected, the function pronounced in the inside realizing this portable electron device 100 and the function that outside amplifies.
This public address set 200 is by utilizing the audio frequency amplifier 30 of portable electron device 100 inside, and pass through the Power supply of portable electron device inside, thus without the need to additionally arranging a built-in battery in this public address set 200, this audio frequency amplifier 30 is powered, thus greatly reduce the weight of this public address set 200, be convenient to user carry, also greatly reduce the design cost of this public address set 200 simultaneously, improve the market competitiveness of this public address set 200.
Although be illustrated the preferred embodiment of the present invention and describe, the art personnel will realize, and can make different changes, and these do not exceed scope of the present invention.Therefore expect, the present invention is not limited to disclosed as the preferred forms realized contemplated by the present invention.
Claims (10)
1. a portable electron device, it is for supplying a public address set grafting, described public address set comprises the first loud speaker, the first terminal, second terminal, 3rd terminal and the 4th terminal, it is characterized in that: described portable electron device comprises master chip, diverter switch and the second loud speaker, described master chip and diverter switch are electrically connected, described diverter switch is used for being connected with the first terminal and the second terminal, described master chip is used for being connected with the 3rd terminal and the 4th terminal, whether described master chip accesses portable electron device for detecting public address set, and set up according to detecting output control diverter switch and the first loud speaker or the second loud speaker and be electrically connected, when public address set access portable electron device, diverter switch and the first loud speaker are electrically connected, when public address set does not access portable electron device, diverter switch and the second loud speaker are electrically connected.
2. portable electron device as claimed in claim 1, it is characterized in that: described diverter switch is double-point double-throw switch, it comprises the first quiet contact point, the second quiet contact point, the first dynamic contact point, the second dynamic contact point, the 3rd dynamic contact point and the 4th dynamic contact point, switchably dynamic contact point and the second dynamic contact point are electrically connected with first for described first quiet contact point, the second quiet contact point, or are electrically connected with the 3rd dynamic contact point and the 4th dynamic contact point.
3. portable electron device as claimed in claim 2, it is characterized in that: described first loud speaker comprises the first anode interface and the first negative pole interface, described second loud speaker comprises the second anode interface and the second negative pole interface, first dynamic contact point and the second dynamic contact point are respectively used to be connected with the first anode interface and the first negative pole interface, and the described 3rd dynamic contact point and the 4th dynamic contact point are electrically connected with the second anode interface and the second negative pole interface respectively.
4. portable electron device as claimed in claim 2, it is characterized in that: described portable electron device also comprises an audio frequency amplifier, described audio frequency amplifier comprises the first output pin, the second output pin and the 3rd pin, described first output pin and the second output pin respectively contact point quiet with first and the second quiet contact point are connected, the signal that described 3rd pin sends for receiving master chip.
5. portable electron device as claimed in claim 4, it is characterized in that: described master chip comprises the first control pin and second and controls pin, described first controls pin is connected with the 3rd pin of audio frequency amplifier, for sending digital signal to audio frequency amplifier, and then control the multiplication factor of audio frequency amplifier to the audio signal received, described second controls pin is connected with diverter switch, in order to control diverter switch first quiet contact point, switchably dynamic contact point and the second dynamic contact point are electrically connected second quiet contact point with first, or be electrically connected with the 3rd dynamic contact point and the 4th dynamic contact point.
6. an audio frequency player module, it comprises portable electron device and public address set, described portable electronic is used for for described public address set grafting, described public address set comprises the first loud speaker, the first terminal, second terminal, 3rd terminal and the 4th terminal, it is characterized in that: described portable electron device comprises master chip, diverter switch and the second loud speaker, described master chip and diverter switch are electrically connected, described diverter switch is used for being connected with the first terminal and the second terminal, described master chip is used for being connected with the 3rd terminal and the 4th terminal, whether described master chip accesses portable electron device for detecting public address set, and set up according to detecting output control diverter switch and the first loud speaker or the second loud speaker and be electrically connected, when public address set access portable electron device, diverter switch and the first loud speaker are electrically connected, when public address set does not access portable electron device, diverter switch and the second loud speaker are electrically connected.
7. audio frequency player module as claimed in claim 6, it is characterized in that: described master chip comprise detecting pin and and grounding pin, described detecting pin connects power supply by one second resistance, when described public address set is plugged in portable electron device, described detecting pin is used for being electrically connected with the 3rd terminal, and described grounding pin is used for being electrically connected with the 4th terminal.
8. audio frequency player module as claimed in claim 7, when described public address set is not connected with portable electron device, detecting pin is in high level, and master chip controls described first quiet contact point, the second quiet contact point and the 3rd dynamic contact point and the 4th dynamic contact point is electrically connected.
9. audio frequency player module as claimed in claim 7, when described public address set is connected with portable electron device, detecting pin and the 3rd terminal are electrically connected and are in low level, and master chip controls described first quiet contact point, the second quiet contact point and the first dynamic contact point and the second dynamic contact point is electrically connected.
10. a public address set, it is plugged in a portable electron device, described portable electron device comprises master chip and diverter switch, described public address set comprises the first loud speaker and joint, described first loud speaker comprises the first anode interface and the first negative pole interface, it is characterized in that: described joint comprises the first terminal, second terminal, 3rd terminal and the 4th terminal, described the first terminal and the second terminal are connected with the first anode interface and the first negative pole interface, and described the first terminal and the second terminal are used for being connected with diverter switch, described 3rd terminal is by one first grounding through resistance, described 4th terminal ground, and described 3rd terminal and the 4th terminal are used for being connected with master chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247015.3A CN104244140A (en) | 2013-06-21 | 2013-06-21 | Amplification device, portable electronic device and audio presentation module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247015.3A CN104244140A (en) | 2013-06-21 | 2013-06-21 | Amplification device, portable electronic device and audio presentation module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104244140A true CN104244140A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310247015.3A Pending CN104244140A (en) | 2013-06-21 | 2013-06-21 | Amplification device, portable electronic device and audio presentation module |
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| Country | Link |
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| CN (1) | CN104244140A (en) |
Citations (7)
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| CN1261248A (en) * | 1999-01-20 | 2000-07-26 | 海信集团公司 | Automatic switching switch of loudspeaker |
| CN101309095A (en) * | 2007-05-16 | 2008-11-19 | 林碧芬 | Portable Bluetooth sound reproducing apparatus |
| JP2011050025A (en) * | 2009-08-26 | 2011-03-10 | Shun Oi | Television with speaker terminal |
| CN102045622A (en) * | 2009-10-16 | 2011-05-04 | 深圳Tcl新技术有限公司 | Method and device for switching built-in and external loud speakers |
| JP4802956B2 (en) * | 2006-09-28 | 2011-10-26 | 日本電気株式会社 | Mobile terminal device |
| CN102457798A (en) * | 2010-10-18 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Audio switching circuit and audio playing device with same |
| CN202267949U (en) * | 2011-09-30 | 2012-06-06 | 深圳市顶星数码网络技术有限公司 | Notebook computer and audio output switching circuit thereof |
-
2013
- 2013-06-21 CN CN201310247015.3A patent/CN104244140A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261248A (en) * | 1999-01-20 | 2000-07-26 | 海信集团公司 | Automatic switching switch of loudspeaker |
| JP4802956B2 (en) * | 2006-09-28 | 2011-10-26 | 日本電気株式会社 | Mobile terminal device |
| CN101309095A (en) * | 2007-05-16 | 2008-11-19 | 林碧芬 | Portable Bluetooth sound reproducing apparatus |
| JP2011050025A (en) * | 2009-08-26 | 2011-03-10 | Shun Oi | Television with speaker terminal |
| CN102045622A (en) * | 2009-10-16 | 2011-05-04 | 深圳Tcl新技术有限公司 | Method and device for switching built-in and external loud speakers |
| CN102457798A (en) * | 2010-10-18 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Audio switching circuit and audio playing device with same |
| CN202267949U (en) * | 2011-09-30 | 2012-06-06 | 深圳市顶星数码网络技术有限公司 | Notebook computer and audio output switching circuit thereof |
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Application publication date: 20141224 |
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