CN101645300A - Multimedia shared mobile terminal supporting double-interface - Google Patents
Multimedia shared mobile terminal supporting double-interface Download PDFInfo
- Publication number
- CN101645300A CN101645300A CN200910051365A CN200910051365A CN101645300A CN 101645300 A CN101645300 A CN 101645300A CN 200910051365 A CN200910051365 A CN 200910051365A CN 200910051365 A CN200910051365 A CN 200910051365A CN 101645300 A CN101645300 A CN 101645300A
- Authority
- CN
- China
- Prior art keywords
- earphone
- pin
- module
- interface
- interfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011324 bead Substances 0.000 claims description 17
- 230000008676 import Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 description 3
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 102000005591 NIMA-Interacting Peptidylprolyl Isomerase Human genes 0.000 description 2
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 101100190527 Arabidopsis thaliana PIN5 gene Proteins 0.000 description 1
- 101100190530 Arabidopsis thaliana PIN8 gene Proteins 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Stereophonic Arrangements (AREA)
- Headphones And Earphones (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a multimedia shared mobile terminal supporting a double-interface. The mobile terminal comprises an audio/video interface, a baseband module, an FM module, a TV-OUT module andan analogue switch switching module, wherein the audio/video interface has interfaces with two specifications of a mini-USB and a 3.5 mm earphone; and two interfaces are both provided with a pluggingdetection pin, audio output pins of the left ear and the right ear and an earphone microphone input pin. The earphone microphone input pin can be multiplexed as a TV-OUT video output pin and can be switched through the analogue switch switching module; and one of grounded wires of two interfaces is used as an antenna of the FM module. The mobile terminal can be inserted into an earphone plug withthe two specifications of the mini-USB and the 3.5 mm earphone interface, which can simultaneously support listening music, listening to FM and voice call, and can support the TV-OUT output with two specifications of plugs.
Description
Technical field
The present invention relates to a kind of mobile communication technology, particularly relate to a kind of multimedia shared mobile terminal of supporting double nip.
Background technology
Along with Development of Multimedia Technology, the multimedia mobile terminal function is abundant day by day, (MPEGAudioLayer 3 for MP3, a kind of music format) and MP4 (MPEG AudioLayer 4, a kind of music format) function almost becomes standard configuration, FM (Frequency Modulation, frequency modulation) function is also very popular with users.In addition because the Internet resources of RMVB (a kind of video file format) video format file are abundanter, add TV-OUT (video card possesses the relevant interface of output signal to TV) function, mobile terminal video can be outputed on the TV to the more wide visual experience clearly of user.
Just, present portable terminal has only an earphone interface mostly, promptly can only insert earphone to enjoy MP3 or MP4 for the user by an interface.Even if minority supports the portable terminal of TV-OUT to have two interfaces for inserting two Earphone joints, also just be limited to and listen to the music, all do not insert earphone and listen to FM or realize voice call function and do not possess two interfaces.In addition, TV-OUT generally only supports an output interface, and the sound that outputs to the video of TV generally can only send from tv speaker.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the defective of prior art, a kind of multimedia shared mobile terminal of supporting double nip to be provided, and it supports music, FM and TV-OUT double nip.
The present invention solves above-mentioned technical matters by following technical proposals: a kind of multimedia shared mobile terminal of supporting double nip, it is characterized in that, described portable terminal comprises the audio-video interface of mini-USB and two kinds of specifications of 3.5mm earphone interface, baseband module, the FM module, TV-OUT module and analog switch handover module, two kinds of interfaces all have plug and detect pin, the left and right sides power of hearing is output pin and earphone Mike input pin frequently, earphone Mike input pin is multiplexed with TV-OUT video output pin simultaneously, switch by the analog switch handover module, one of ground wire of two interfaces is as the antenna of FM.
Preferably, described mini-USB and 3.5mm earphone interface have an earphone plug to detect pin respectively.
Preferably, insert the mini-USB earphone in the described mini-USB interface after, corresponding plug detects pin can import a low level to baseband module, after the mini-USB earphone is pulled up then this pin by on draw and be high level.
Preferably, insert the 3.5mm earphone in the described 3.5mm earphone interface after, corresponding plug detects pin can import a high level to baseband module, after the 3.5mm earphone is pulled up then this pin be low level.
Preferably, the plug of described two earphone interfaces detects the resistance of pin front end near 1k ohm of pin place series connection, and puts near the earphone interface respective pins.
Preferably, any one in described two earphone interfaces inserts earphone or the TV-OUT data line all can eject a selection window, and selecting insertion equipment by the user is that earphone still is the TV-OUT data line.
Preferably, the left and right sides power of hearing of described two kinds of earphone interfaces is output pin and the earphone Mike input pin place magnetic bead of all contacting frequently, and the ground wire of two kinds of earphone interfaces links to each other with FM antenna input signal line respectively and is connected to ground wire on the pcb board by a magnetic bead.
Preferably, described magnetic bead specification requirement is to the 100MHz signal, and impedance is as far as possible more than 600 ohm, and close earphone interface respective pins is put.
Preferably, the earphone Mike input/TV-OUT video of described two kinds of earphone interfaces output multiplexing pins is connected to the common port pin of analog switch handover module by a magnetic bead, and two discrete pins of analog switch handover module connect the CVBS video output of an earphone Mac circuit and TV-OUT module respectively.
Preferably, described analog switch handover module is controlled by baseband module, its control signal default conditions are " 0 ", promptly the earphone Mike input/TV-OUT video of two kinds of earphone interfaces output multiplexing pins is defaulted as earphone Mike input, when control signal was " 1 ", multiplexing pins was exported as the TV-OUT video.
Positive progressive effect of the present invention is: the invention provides a kind of multimedia shared mobile terminal of supporting music, FM and TV-OUT double nip, this portable terminal can insert the headset plug of mini-USB and two kinds of specifications of 3.5mm, all can support to listen to the music simultaneously, listen to FM and conversation; Equally also support the TV-OUT output of above-mentioned two kinds of specification plug, convenient for users to use like this.
Description of drawings
Fig. 1 shares the double nip system architecture diagram for multimedia.
Fig. 2 is a mini-USB interface module circuit diagram.
Fig. 3 is a 3.5mm earphone interface module circuit diagram.
Fig. 4 is earphone Mike input/TV-OUT video output handover module circuit diagram.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
According to embodiments of the invention, provide a kind of multimedia shared mobile terminal of supporting music, FM and TV-OUT double nip.
As shown in Figure 1, the multimedia of this portable terminal is shared the double nip system and mainly is made up of following modules: mini-USB (a kind of USB (universal serial bus) at small-sized digital equipment design) interface module, 3.5mm earphone interface module, analog switch handover module handover module, the FM module, TV-OUT module and baseband module, these two kinds of interfaces of mini-USB and 3.5mm earphone interface all have plug and detect pin, the left and right sides power of hearing is output pin and earphone Mike input pin frequently, earphone Mike input pin is multiplexed with TV-OUT video output pin simultaneously, switch by an analog switch handover module, the ground wire of two interfaces all can be used as the antenna of FM, wherein, mini-USB and 3.5mm earphone interface have an earphone plug to detect pin respectively.After inserting the mini-USB earphone in the mini-USB interface, corresponding plug detects pin can import a low level to baseband module, after the mini-USB earphone is pulled up then this pin by on draw and be high level.3.5mm after inserting the 3.5mm earphone in the earphone interface, corresponding plug detects pin can import a high level to baseband module, after the 3.5mm earphone is pulled up then this pin be low level.The plug of two kinds of earphone interfaces detects the resistance about 1k ohm of the close pin place series connection of pin front end, and put near the earphone interface respective pins, prevent that signal is received by FM by earphone cord on the pcb board, and produce can reduce to plug earphone the time moment overcurrent or overvoltage damage baseband module.In two earphone interfaces any one inserted earphone or TV-OUT data line and all can be ejected one and select window, and selecting insertion equipment by the user is that earphone still is the TV-OUT data line.The left and right sides power of hearing of two kinds of earphone interfaces is output pin and the earphone Mike input pin place magnetic bead of all contacting frequently, and the ground wire of two kinds of earphone interfaces links to each other with FM antenna input signal line respectively and is connected to ground wire on the pcb board by a magnetic bead.This magnetic bead specification requirement is to the 100MHz signal, and impedance is as far as possible more than 600 ohm, and close earphone interface respective pins is put.The earphone Mike input/TV-OUT video output multiplexing pins of two kinds of earphone interfaces is connected to the common port pin of analog switch handover module by a magnetic bead, earphone Mac circuit in two discrete pins difference connected systems of analog switch handover module and CVBS (Composite VideoBroadcast Signal, composite video broadcast singal) the video output of TV-OUT.
Wherein HEAD_L and HEAD_R are that the baseband module of portable terminal outputs to the mini-USB interface module, 3.5mm the left and right sides earphone simulating signal of earphone interface module, HEAD_MIC is for being input to the earphone Mike simulating signal of baseband module from mini-USB or 3.5mm earphone, TV_OUT is the CVBS simulating signal of TV-OUT module output, HEADSET_DETECT is the mini-USB earphone plug detection signal that is input to baseband module, TVO_PLUG is the 3.5mm earphone plug detection signal that is input to baseband module, and TVO_EN is the analog switch handover module switch-over control signal of baseband module output.TV/MIC outputs to the CVBS signal of earphone interface or the earphone Mike signal of importing from earphone interface for the analog switch handover module.FM_ANT is the FM antenna receiving signal from the earphone interface input.
Mini-USB interface module circuit as shown in Figure 2.When the mini-USB earphone does not insert, the 3rd pin (PIN3) of J101 is unsettled, mini-USB earphone plug detection signal HEADSET_DETECT is by moving VDDIO (the IO power supply of baseband module output) on the 100K Ω resistance R 101, this moment baseband module to detect HEADSET_DETECT be high level; After the mini-USB earphone inserts, because the PIN3 of mini-USB links to each other with PIN10 (the tenth pin), and the PIN10 of J101 receives ground by 600 ohm magnetic bead, forms the bleeder circuit of a R101 (100K Ω) and R102 (1K Ω) thus, so the voltage of HEADSET_DETECT is:
The voltage of HEADSET_DETECT approaches 0, and promptly HEADSET_DETECT is a low level.R102 will put near the earphone interface respective pins, prevents that signal is received by FM by earphone cord on the pcb board, and produce can reduce to plug earphone the time moment overcurrent or overvoltage damage baseband module.
3.5mm the earphone interface modular circuit as shown in Figure 3.3.5mm earphone plug detection signal TVO_PLUG is by moving VDDIO (I/O pin supply voltage) on the R201 (220K Ω), resistance in series R202 (1K Ω between the PIN2 of TVO_PLUG and J201, produce when reducing to plug the 3.5mm earphone moment overcurrent or overvoltage damage baseband module), a pull down resistor R203 (220K Ω) is arranged on the HEAD_R signal.3.5mm when earphone did not insert, the PIN2 of earphone interface J201 contacted with PIN1, the voltage of TVO_PLUG is:
The voltage of TVO_PLUG approaches 0, and promptly TVO_PLUG is a low level; 3.5mm after earphone inserted, the PIN2 of earphone interface J201 and PIN1 branch were opened, TVO_PLUG moves VDDIO on directly, be high level.
Magnetic bead FB101, the FB102, FB103, FB201, FB302, the FB303 that are connected among Fig. 2 and Fig. 3 on HEAD_L, HEAD_R and the TV/MIC signal wire are BLM15HD102SN1 (a kind of inductance model), to the 100MHz signal, about 1000 ohm of impedances, and put near the earphone interface respective pins, to prevent that signal is received by FM by earphone cord on PCB (Printed Circuit Board, the printed-wiring board (PWB)) plate.
Magnetic bead FB104 among Fig. 2 act as and prevents that signal is received by FM by the earphone ground wire on the pcb board, its model is UPZ1608E601-1R0Tf, to the 100MHz signal, about 600 ohm of impedances, and the maximum direct current that can pass through is 1000mA, because the miniUSB interface in this portable terminal also as the charging, calibrate and the use that downloads (not marking the pin of these function correspondences among the figure), this moment, interface J201 need pass through bigger electric current, and therefore the FB104 of magnetic bead over the ground here need use the UPZ1608E601-1R0Tf of 0603 encapsulation of super-high-current.And the PIN5 of interface J201 is only as the ground of earphone among Fig. 3, and magnetic bead FB204 also is in order to prevent that signal is received by FM by the earphone ground wire on the pcb board, and model is all BLM15HD102SN1 mutually with FB101.
Earphone Mike input/TV-OUT video output handover module circuit as shown in Figure 4.Analog switch handover module control signal TVO_EN comes from baseband module, and its control signal default conditions are " 0 ", and promptly the earphone Mike input/TV-OUT video of two kinds of earphone interfaces output multiplexing pins is defaulted as earphone Mike input.When control signal was " 1 ", multiplexing pins was exported as the TV-OUT video.
In sum, the invention provides a kind of multimedia shared mobile terminal of supporting music, FM and TV-OUT double nip.This portable terminal can insert the headset plug of mini-USB and two kinds of specifications of 3.5mm, all can support to listen to the music simultaneously, listen to FM and conversation; Equally also support the TV-OUT output of above-mentioned two kinds of specification plug.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (10)
1, a kind of multimedia shared mobile terminal of supporting double nip, it is characterized in that, described portable terminal comprises audio-video interface, baseband module, FM module, TV-OUT module and the analog switch handover module of mini-USB and two kinds of specifications of 3.5mm earphone interface, two kinds of interfaces all have plug and detect pin, the left and right sides power of hearing output pin and earphone Mike input pin frequently, earphone Mike input pin is multiplexed with TV-OUT video output pin simultaneously, switch by the analog switch handover module, one of ground wire of two interfaces is as the antenna of FM module.
2, portable terminal according to claim 1 is characterized in that, described mini-USB and 3.5mm earphone interface have an earphone plug to detect pin respectively.
3, portable terminal according to claim 1, it is characterized in that, after inserting the mini-USB earphone in the described mini-USB interface, corresponding plug detects pin can import a low level to baseband module, after the mini-USB earphone is pulled up then this pin by on draw and be high level.
4, portable terminal according to claim 1 is characterized in that, insert the 3.5mm earphone in the described 3.5mm earphone interface after, corresponding plug detects pin can import a high level to baseband module, after the 3.5mm earphone is pulled up then this pin be low level.
According to claim 3 or 4 described portable terminals, it is characterized in that 5, the plug of described two earphone interfaces detects the resistance of pin front end near 1k ohm of pin place series connection, and put near the earphone interface respective pins.
6, portable terminal according to claim 1 and 2 is characterized in that, any one in described two earphone interfaces inserts earphone or the TV-OUT data line all can eject a selection window, and selecting insertion equipment by the user is that earphone still is the TV-OUT data line.
7, portable terminal according to claim 1, it is characterized in that, the left and right sides power of hearing of described two kinds of earphone interfaces is output pin and the earphone Mike input pin place magnetic bead of all contacting frequently, and the ground wire of two kinds of earphone interfaces links to each other with FM antenna input signal line respectively and is connected to ground wire on the pcb board by a magnetic bead.
8, portable terminal according to claim 7 is characterized in that, described magnetic bead specification requirement is to the 100MHz signal, and impedance is as far as possible more than 600 ohm, and close earphone interface respective pins is put.
9, portable terminal according to claim 1, it is characterized in that, the earphone Mike input/TV-OUT video of described two kinds of earphone interfaces output multiplexing pins is connected to the common port pin of analog switch handover module by a magnetic bead, and two discrete pins of analog switch handover module connect the CVBS video output of an earphone Mac circuit and TV-OUT module respectively.
10, portable terminal according to claim 1, it is characterized in that, described analog switch handover module is controlled by baseband module, its control signal default conditions are " 0 ", promptly the earphone Mike input/TV-OUT video of two kinds of earphone interfaces output multiplexing pins is defaulted as earphone Mike input, when control signal was " 1 ", multiplexing pins was exported as the TV-OUT video.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051365A CN101645300A (en) | 2009-05-15 | 2009-05-15 | Multimedia shared mobile terminal supporting double-interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051365A CN101645300A (en) | 2009-05-15 | 2009-05-15 | Multimedia shared mobile terminal supporting double-interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101645300A true CN101645300A (en) | 2010-02-10 |
Family
ID=41657136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910051365A Pending CN101645300A (en) | 2009-05-15 | 2009-05-15 | Multimedia shared mobile terminal supporting double-interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101645300A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300178A (en) * | 2010-06-25 | 2011-12-28 | 浪潮乐金数字移动通信有限公司 | Mobile terminal and method for processing incoming telegram and short message during watching video |
| WO2012003720A1 (en) * | 2010-07-08 | 2012-01-12 | 中兴通讯股份有限公司 | Device and method for connecting earphones for mobile phone |
| WO2012009984A1 (en) * | 2010-07-23 | 2012-01-26 | 惠州Tcl移动通信有限公司 | Method and device for sharing micro-usb interface between earphone and usb |
| CN102610914A (en) * | 2012-03-30 | 2012-07-25 | 上海华勤通讯技术有限公司 | China Mobile Multimedia Broadcasting (CMMB) antenna |
| CN102821189A (en) * | 2011-06-09 | 2012-12-12 | 联想移动通信科技有限公司 | Wireless listening method, mobile terminal and system |
| CN103563396A (en) * | 2011-05-30 | 2014-02-05 | 索尼爱立信移动通讯有限公司 | Minimizes interference of semiconductor switches on the signal path |
| CN104254027A (en) * | 2013-08-05 | 2014-12-31 | 广东欧珀移动通信有限公司 | A method and system for using earphones compatible with round hole interface and USB interface |
| CN104683903A (en) * | 2015-02-10 | 2015-06-03 | 小米科技有限责任公司 | Earphone control method and device |
| CN106358125A (en) * | 2016-09-09 | 2017-01-25 | 北京小米移动软件有限公司 | Method and device for audio output |
| CN110913157A (en) * | 2019-11-27 | 2020-03-24 | 深圳创维－Rgb电子有限公司 | Headphone interface multiplexing circuit, connector and display |
| CN113206676A (en) * | 2020-01-15 | 2021-08-03 | 荣耀终端有限公司 | Frequency modulation device and terminal based on data transmission interface |
-
2009
- 2009-05-15 CN CN200910051365A patent/CN101645300A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300178A (en) * | 2010-06-25 | 2011-12-28 | 浪潮乐金数字移动通信有限公司 | Mobile terminal and method for processing incoming telegram and short message during watching video |
| CN102300178B (en) * | 2010-06-25 | 2016-02-24 | 浪潮乐金数字移动通信有限公司 | A kind of mobile terminal and the processing method to incoming call and note during watching video thereof |
| WO2012003720A1 (en) * | 2010-07-08 | 2012-01-12 | 中兴通讯股份有限公司 | Device and method for connecting earphones for mobile phone |
| WO2012009984A1 (en) * | 2010-07-23 | 2012-01-26 | 惠州Tcl移动通信有限公司 | Method and device for sharing micro-usb interface between earphone and usb |
| US9414147B2 (en) | 2010-07-23 | 2016-08-09 | Huizhou Tcl Mobile Communication Co., Ltd. | Method and device for earphone and USB to share micro-USB interface |
| CN103563396B (en) * | 2011-05-30 | 2016-12-28 | 索尼移动通信株式会社 | Method, circuit and apparatus for reducing interference to a signal path |
| CN103563396A (en) * | 2011-05-30 | 2014-02-05 | 索尼爱立信移动通讯有限公司 | Minimizes interference of semiconductor switches on the signal path |
| CN102821189A (en) * | 2011-06-09 | 2012-12-12 | 联想移动通信科技有限公司 | Wireless listening method, mobile terminal and system |
| CN102821189B (en) * | 2011-06-09 | 2014-11-12 | 联想移动通信科技有限公司 | Wireless listening method, mobile terminal and system |
| CN102610914A (en) * | 2012-03-30 | 2012-07-25 | 上海华勤通讯技术有限公司 | China Mobile Multimedia Broadcasting (CMMB) antenna |
| CN104254027A (en) * | 2013-08-05 | 2014-12-31 | 广东欧珀移动通信有限公司 | A method and system for using earphones compatible with round hole interface and USB interface |
| CN104683903A (en) * | 2015-02-10 | 2015-06-03 | 小米科技有限责任公司 | Earphone control method and device |
| CN106358125A (en) * | 2016-09-09 | 2017-01-25 | 北京小米移动软件有限公司 | Method and device for audio output |
| CN110913157A (en) * | 2019-11-27 | 2020-03-24 | 深圳创维－Rgb电子有限公司 | Headphone interface multiplexing circuit, connector and display |
| CN110913157B (en) * | 2019-11-27 | 2022-02-15 | 深圳创维－Rgb电子有限公司 | Headphone interface multiplexing circuit, connector and display |
| CN113206676A (en) * | 2020-01-15 | 2021-08-03 | 荣耀终端有限公司 | Frequency modulation device and terminal based on data transmission interface |
| CN113206676B (en) * | 2020-01-15 | 2023-10-20 | 荣耀终端有限公司 | Frequency modulation device and terminal based on data transmission interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645300A (en) | Multimedia shared mobile terminal supporting double-interface | |
| CN201204638Y (en) | System and single-pin plug | |
| CN201188444Y (en) | Data line capable of implementing electrification and earphone function | |
| CN102096651B (en) | Based on the handset port multiplex circuit of standard Micro USB interface | |
| CA2876696C (en) | Audio interface self-adaption device | |
| CN101841588B (en) | Audio interface device and electronic device using same | |
| US20140100001A1 (en) | Apparatus and method for detecting insertion of headset into mobile station | |
| CN201509235U (en) | Headphone detection circuit of mobile terminal and mobile terminal thereof | |
| CN105491469A (en) | Method and system for controlling audio output mode based on wearing earphone state | |
| CN101917497A (en) | Method and device for sharing Micro-USB interface with earphone and USB | |
| CN102325216A (en) | Mobile communication equipment and volume control method thereof | |
| CN102035911A (en) | Device and method for accessing earphone of mobile phone | |
| CN202721789U (en) | Audio interface adaptive device | |
| CN102387429B (en) | Audio signal switching device and audio signal transmission system | |
| CN101232742B (en) | Earphone device capable of switching signal transmission | |
| CN101521699A (en) | Mobile phone receiving frequency modulated signal by using built-in aerial and method thereof | |
| CN102355518A (en) | Mobile phone and audio processing method thereof | |
| CN201898602U (en) | Passive sound box interface of mobile phone | |
| CN102710821A (en) | Hand microphone for interphone and interphone | |
| CN209516078U (en) | A kind of headset plug, earphone and communication part | |
| CN201528042U (en) | Antenna device and terminal equipment | |
| CN206878285U (en) | A kind of two-in-one patchcord of audio charging | |
| CN201479354U (en) | Power amplifier muting circuit | |
| CN101917659A (en) | Detection device, method and mobile terminal of earphone circuit | |
| CN201781517U (en) | Mobile phone device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100210 |