CN1818889A - Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system - Google Patents
Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system Download PDFInfo
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Abstract
A playing storage equipment, such as MP3, PDA, DV, digital camera, portable PC and mobile phone. It is set a signal input and output linker and controlling bottoms on the main body, a controlling circuit inside of it that consist of the audio output circuit that connect with the data processing circuit, the interface circuit of input and output data, and controlling buttons. the interface circuit of input and output data is a USB interface circuit, only one signal linker is set on the main body, the signal linker has 4 lines, two of the lines connect with the two audio signal ends of the audio output circuit and the two signal ends of the USB interface circuit respectively by the switch module, one of the line is the grounding connecting end, the last line is the controlling connecting end, the power supply which connect with the controlling circuit and the USB power supply of the USB interface circuit are multiple use. The invention is multiply use of the signal linker for the upload and download data of data and output the audio signal, that weaken the design limit by using some linkers.
Description
Technical field
The present invention relates to a kind of audio frequency/usb signal multiplexing line, broadcasting memory and have the multiplexing transmitting broadcasting memory system switching device of audio frequency/usb signal multiplexing line, especially a kind of switching device, equipment and system that an audio output port or USB interface are only arranged based on broadcasting memory.
Background technology
Continuous development along with electronic technology, consumption electronic product is employed more and more widely, as various electronic equipments such as MP3, DV, PDA, mobile phone, game stations, these equipment both can be from other data source data download, also the data transmission of its storage can be stored in other storeies, as be sent in the computing machine and preserve, when carrying out the transmission of data, need special-purpose interface to be connected with other data sources or storer, comparatively general interface is a USB interface at present.When the needs playing audio-fequency data, need audio output apparatus is connected with the said equipment by audio interface, voice data in the above-mentioned audio-frequence player device is play by audio output apparatus, and audio output apparatus can be earphone, audio amplifier or other equipment with playing function.Therefore,, on existing various electronic equipments, USB interface and audio interface must be set simultaneously, cause its volume size to be very limited in order to realize the output of data transmission and audio frequency.As consumption electronic product, guaranteeing that volume requirement light and handy and rational in infrastructure is increased day by day under the prerequisite that existing capability is not lost.Therefore the product form that an existing equipment is provided with two interfaces is unfavorable for the miniaturization of equipment, is unfavorable for that also the rationalization of structure improves, and also makes troubles to a certain extent in the process that the consumer uses.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of broadcasting memory is provided, it is multiplexing according to interface or usb data interface that an audio frequency-USB only is set on this electronic equipment, by the audio frequency on the equipment-USB handoff functionality control, carry out the output of the uploading of data, download and sound signal by this multiplex interface, equipment volume is little, and is simple in structure and easy to use.
Another object of the present invention is at the deficiencies in the prior art, a kind of usb data-sound signal multiplexing transmitting line is provided, these multiplexing transmitting line two ends are respectively equipped with USB interface and audio interface, both can also can pass through audio frequency input/output interface transmitting audio signal, realize the connection between the different interface devices by the USB interface transmission of data signals.
A further object of the present invention is at the deficiencies in the prior art, a kind of usb data-sound signal multiplexing transmitting broadcasting memory system that has is provided, being connected between audio frequency/USB multiplex interface that this system can be provided with by its inner multiplexing control switching circuit of audio frequency/USB of installing, its body and multiplexing transmitting line and other electronic equipment of outside or the playback equipment, thereby the mutual or one-way transmission of the data of finishing, signal, providing for the user greatly easily simultaneously, system architecture is simplified.
To achieve these goals, the invention provides a kind of broadcasting memory, for example MP3, PDA, DV, digital camera, portable PC or mobile phone.It is made up of the control circuit that is provided with in body and the body, its body is provided with signal input and output connector and control button, and control circuit comprises audio playing circuit and the audio output circuit that is connected with audio playing circuit, data processing and control circuit, data input/output interface circuit; The control button is connected with the data processing and control circuit.Wherein said data input/output interface circuit is a usb circuit, establish a signal connector on the body, this connector has 4 lines, wherein 2 signal connection ends connect 2 sound signal ends of audio output circuit and 2 signal line ends of usb circuit respectively by handover module, 1 ground connection link, another root is the control linkage end, connects the power supply of control circuit, and multiplexing with the USB power lead of described usb circuit.
Further, as, establishing a signal connector on the apparatus body is audio connector, and this audio connector is provided with 2 sound signal links, audio frequency ground link and control signal link, connects 2 sound signals, sound signal ground and the control signal of audio output circuit respectively; Described data input/output interface circuit is a usb circuit, and described audio connector is provided with 2 sound signal links connect the USB of usb circuit respectively by handover module 2 single data signals; The audio frequency ground link of audio connector connects the signal ground of usb circuit; The control linkage end of audio connector connects the power supply of control circuit, and multiplexing with the USB power lead of described usb circuit.Handover module can be electronic switch, 2 sound signal links of a termination of electronic switch, 2 single data signals of another termination usb circuit.The trigger control end of electronic switch connects the output of USB-delayed audio signal trigger circuit.Whether detecting trigger circuit, to detect what insert at interface be usb signal, if, then detecting trigger circuit institute connection delay trigger circuit starts working, arrive in time delay, the switching controls action, each conversion of signals of audio jack is defined as USB interface, thereby realizes that this equipment and other equipment carry out exchanges data by the usb data line; If the detection of detection trigger circuit is not a usb signal the interface access,, connect device uses such as earphone then as the ordinary audio mouth.
Certainly, also can will detect serial connection one transposition switch in the trigger circuit as required, the user can manually set the output result who detects trigger circuit voluntarily, the control its switch action.
According to the present invention, the signal connector of body can also be made as USB connector, wherein the signal line end of 2 usb signal line connection usb circuits respectively as 2 audio signal wires, connects the audio signal output end of audio output circuit by handover module; Connect the signal ground of usb circuit usb signal, multiplexing with audio output circuit ground end; The power supply of USB power lead connection control circuit, multiplexing with audio frequency control linkage end.Can whether be that usb signal switches by what detect the interface access equally, realize the purpose of interface duplex.
For the transmission easily that realizes the said equipment connects, the invention provides a kind of usb data-sound signal multiplexing transmitting line.It is made up of the connector and the transmission electric wire at two ends, is used for above-mentioned playback equipment and carries out exchanges data or output audio signal with outside another data storage or treatment facility.The connector at its two ends is respectively USB connector, audio connector, wherein, 2 sound signal links of audio connector connect 2 single data signal connection ends of USB connector respectively, the signal ground of audio connector is connected with the signal ground of USB connector, and the control signal end of audio connector connects the power end of USB connector.
Particularly, USB connector is USB male joint or USB female joint, and the USB male joint is the big joint or the little joint of standard; Perhaps described USB female joint is the big joint or the little joint of standard.
Audio connector is audio jack or audio socket.For example, audio jack is divided into electric independently 4 sections, respectively is 2 sound signal links, audio frequency ground link and control signal link.
In addition, as an integral body, the present invention also provides a kind of usb data-sound signal multiplexing transmitting broadcasting memory system that has, and it comprises the said equipment and above-mentioned transmission line.Wherein said transmission line one terminal adapter connects the corresponding signal connector of described equipment.
Particularly, described signal connector is an audio connector, and transmission line one terminal adapter is an audio connector, and this two connector is the male and female fit structure; Perhaps described signal connector is a USB connector, and transmission line one terminal adapter is a USB connector, and this two USB connector is the male and female fit structure.
In sum, broadcasting memory provided by the present invention, an audio frequency-USB multiplex data interface only is set on it, carry out the output of the uploading of data, download and sound signal by this multiplex interface, cause equipment volume little, simple in structure and easy to use, can also reduce greatly because the restriction of the industrial design that interface brings, and expand under the same volume, be provided with by increasing, and the processing power or the storage capacity of raising equipment itself.
Usb data provided by the present invention-sound signal multiplexing transmitting line, because its two ends are respectively equipped with USB interface and audio interface, can realize easily that the said equipment passes through unique interface, both can also can pass through audio frequency input/output interface transmitting audio signal, and realize the connection between the different interface devices by the USB interface transmission of data signals.
A kind of usb data-sound signal multiplexing transmitting broadcasting memory system that has provided by the present invention, being connected between the audio frequency/USB multiplex interface that to install by its inner multiplexing switching controls parts of audio frequency/USB that are provided with, its body and described multiplexing transmitting line and other electronic equipment of outside or the playback equipment, thereby the mutual or one-way transmission of the data of finishing, signal, light and handy and the designs simplification of equipment volume is being provided for the user greatly easily simultaneously.
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in detail.
Description of drawings
Fig. 1 is the internal circuit configuration block diagram of broadcasting memory of the present invention;
Fig. 2 is one of circuit theory diagrams embodiment of broadcasting memory of the present invention;
Fig. 3 is two of the circuit theory diagrams embodiment of broadcasting memory of the present invention;
Fig. 4 is three of the circuit theory diagrams embodiment of broadcasting memory of the present invention;
Fig. 5 is four of the circuit theory diagrams embodiment of broadcasting memory of the present invention;
Fig. 6 is five of the circuit theory diagrams embodiment of broadcasting memory of the present invention;
Fig. 7 is one of usb data of the present invention-sound signal multiplexing transmitting line structural representation;
Fig. 8 is two of usb data of the present invention-sound signal multiplexing transmitting line structural representation;
Fig. 9 is three of usb data of the present invention-sound signal multiplexing transmitting line structural representation;
Figure 10 is one of system architecture synoptic diagram of the present invention;
Figure 11 is two of system architecture synoptic diagram of the present invention.
Embodiment
Referring to Fig. 2-6, the present invention has provided a kind of broadcasting memory, for example MP3, PDA, DV, digital camera, portable PC or mobile phone.These equipment have comprised apparatus body 1 and the interior control circuit that is provided with 14 compositions of body separately, realize different functions of use.Apparatus body 1 is provided with signal input and output connector and control button 19, audio output circuit 15, data processing and control circuit, data input/output interface circuit 16 that control circuit comprises audio playing circuit and is connected with audio playing circuit; Control button 19 is connected with data processing and control circuit 14.
In view of current various portable sets all have USB interface, be the versatility of support equipment and other equipment better, reduce cost.Data input/output interface circuit 16 of the present invention adopts usb circuit.Establish a signal connector 11 on the body 1, be electrically connected in the design, connector 11 of the present invention has 4 lines, wherein 2 signal connection ends connect 2 sound signal ends of audio output circuit 15 and 2 signal line ends of usb circuit 16 respectively by handover module 13,1 ground connection link, another root is the control linkage end, connects the power supply of control circuit, and multiplexing with the USB power lead of usb circuit.
Particularly, as shown in Figure 2, in conjunction with the accompanying drawings 10,11, the present invention only establishes a signal connector on above-mentioned portable mobile storage playback equipment body 1, be audio connector---audio jack 11.Utilize this audio jack 11 to finish conventional voice playing, also utilize this jack 11 to finish exchanges data between this equipment 1 and other equipment (for example, computing machine).The concrete technical scheme of the present invention is 2 sound signal links, audio frequency ground link and the control signal link that has utilized on this audio jack 11, connects 2 sound signals, sound signal ground and the control signal of audio output circuit 15 respectively.2 sound signal links of audio jack 11 connect the 2 single data signals of the USB of usb circuit 16 respectively by handover module; The audio frequency ground link of audio jack 11 connects the signal ground of usb circuit; The control linkage end of audio jack 11 connects the power supply of control circuit 14, and is multiplexing with the USB power lead of usb circuit.
The concrete switching mode of the present invention can be multiple.Wherein, as shown in Figure 2, handover module of the present invention is an electronic switch 13,2 sound signal links of a termination of electronic switch 13,2 single data signals of another termination usb circuit.The trigger control end of electronic switch 13 connects the USB-sound signal and detects, postpones trigger circuit output 12, and the C1 that this circuit is made up of electric capacity, resistance, R1 delay circuit are formed, and the power end of USB interface inserts this circuit.Because the power supply signal that USB interface is come is a 5V voltage, therefore whether be usb signal to this circuit if can detect what insert at interface, if, then the capacitor C 1 of this circuit begins charging, arrive the working value of electronic switch 13 when charging, just arrive time delay, electronic switch 13 change actions, each conversion of signals of audio jack 11 is defined as USB interface, at this moment, the signal input/output interface of equipment becomes the standard universal that meets usb protocol and walks data-interface, can realize that this equipment and other equipment carry out exchanges data by the usb data line.If in these audio jack 11 accesses are headset plugs, the detection trigger circuit are not usb signals interface detection access, then electronic switch 13 switching positions are audio signal wire, the jack signal wire directly connects the audio output port of control circuit, connect devices such as earphone, press control knob, the conventional playout storage of using, the sound signal of listening to broadcast gets final product.
Have, also can will detect serial connection one transposition K switch in the trigger circuit 12 as required, the user can manually set the output result who detects trigger circuit 12 voluntarily, the control its switch action.As shown in Figure 3.
Figure 4 shows that a kind of circuit constitutes synoptic diagram.Wherein, be testing circuit 12 to be connect be connected in series diode 18 and system power supply module 17 on internal control circuit 14 power circuits.In order to realize the isolation of usb bus power supply and main body system power supply, the reliability that support equipment uses.Other guide and the foregoing description of present embodiment are basic identical.
Embodiment shown in Figure 5, same as the previously described embodiments substantially.Just handover module 13 is a hand switch.The user is voluntarily according to the state that uses like this, and the signal connector of body is set at audio frequency output, perhaps is USB output/input.Present embodiment provides the mode of initiatively selecting the interface duplex state for the user.
Embodiment shown in Figure 6 provides the equipment I/O port multiplexing another kind of switching mode.Just handover module is integrated into data processing and control circuit 14 inside, and will have detected, postpone the mouth line that trigger circuit 12 outputs directly connect data processing and control circuit 14.When detecting, postponing trigger circuit 12 output high level, only output signal to usb circuit 16 in the data processing and control circuit 14, at this moment the signal connector of apparatus body is the USB mouth, audio output circuit 15 is closed, no signal.That is to say, when the user is connected to this equipment on the active devices with power supply by USB interface, computing machine for example, then the connector of this equipment becomes USB connector; When detecting, when postponing trigger circuit 12 output low levels, only outputing signal to audio output circuit 15 in the data processing and control circuit 14, at this moment the signal connector of apparatus body is an audio port, and usb circuit 16 is closed, no signal.If when promptly the user inserted this signal connector with earphone, this connector was exactly an audio port.
To sum up, though the present invention only is provided with a signal connector at body, but by switching neatly, realized the demand that signal of different nature transmits well, thereby ensured as portable, mobile storage playback equipment and only need design the function that a signal connector just can be realized voice playing mouth/usb data transmission mouth, simplified the apparatus body volume greatly, satisfied equipment microminiaturization, personalized demand, also for the storage that promoted equipment and processing power further provide may.
In addition, according to the identical basic technical scheme of the present invention, the signal connector of body can also be made as USB connector, that is to say only has external wired connection interface a---USB connector on the apparatus body, as USB socket.Signal line end with 2 corresponding usb circuits of usb signal line connection device body interior control circuit in this connector respectively as 2 audio signal wires, connects the audio signal output end of audio output circuit by handover module; Connect the signal ground of usb circuit usb signal, multiplexing with audio output circuit ground end; The power supply of USB power lead connection control circuit, multiplexing with audio frequency control linkage end.Can whether be that usb signal switches by what detect the interface access equally, realize the purpose of interface duplex.
7-9 describes a kind of usb data of the present invention-sound signal multiplexing transmitting line 2 in detail in conjunction with the accompanying drawings.As shown in Figure 7, it is made up of the connector and the transmission electric wire 23 at two ends, is used for above-mentioned playback equipment and carries out exchanges data or output audio signal with outside another data storage or treatment facility.The connector at its two ends is respectively USB connector 22, audio connector 21.As different structural forms, audio connector 21 also is audio jack or audio socket; In like manner, for meeting the needs of, USB connector 22 also can be various structural forms, is little male joint 22a as USB connector among Fig. 8 22; USB connector 22 shown in Figure 9 is female joint, just USB socket 22b.
Referring to Fig. 7, on electrical design, switch and transmission signals for conveniently patching, ensureing, preferably, audio jack 21 is divided into electric independently 4 sections, respectively be 2 sound signal links, audio frequency ground link and control signal link.2 sound signal links of audio connector 21 connect 2 single data signal connection ends of USB connector 22 respectively, the signal ground of audio connector 21 is connected with the signal ground of USB connector 21, and the control signal end of audio connector 21 connects the power end of USB connector 22.
Accompanying drawing 10,11 has provided the present invention and has had usb data-sound signal multiplexing transmitting broadcasting memory system.It comprises equipment in the various embodiments described above, as MP3 or mobile phone 1, also has the multiplexing transmitting line 2 in the foregoing description.Signal connector on equipment 1 is an audio connector, and transmission line 2 local side connectors are audio connector 21, and this two connector is the male and female fit structure.Particularly, on the body audio jack 11, transmission line 2 body end are audio jack 21 just, the other end is a USB connector 22.Signal connector on equipment is a USB connector, and accordingly, this transmission line local side connector is a USB connector, and this two USB connector is the male and female fit structure.
Referring to Figure 11, use native system, when needing the sound signal of listening equipment 1 broadcast, can insert by common earphone 4, obtain sound signal, also applicable transmission line of the present invention connects computing machine 5, utilizes the sound card of computing machine 5 to play.When needs with computing machine 5 in data when downloading in the described equipment 1, can utilize transmission line 2 of the present invention, USB connector 22 is connected with computing machine 5, audio connector is connected with described equipment.After the commutation circuit of equipment detects the power supply that USB connector comes, implementing change action (perhaps directly utilizes manually and sets, change-over switch is pushed on the corresponding position, making connector is audio connector or USB connector), the data line of transmission line is connected to the corresponding output/input interface of device interior control circuit, by controlling computing machine or equipment, finish data transfer between the two at once.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (19)
1, a kind of broadcasting memory, it is made up of the control circuit that is provided with in body and the body, its body is provided with signal input and output connector and control button, and control circuit comprises audio playing circuit and the audio output circuit that is connected with audio playing circuit, data processing and control circuit, data input/output interface circuit; The control button is connected with the data processing and control circuit; It is characterized in that: described data input/output interface circuit is a usb circuit, establish a signal connector on the body, this connector has 4 lines, wherein 2 signal connection ends connect 2 sound signal ends of audio output circuit and 2 signal line ends of usb circuit respectively by handover module, 1 ground connection link, another root is the control linkage end, connects the power supply of control circuit, and multiplexing with the USB power lead of described usb circuit.
2, playback equipment according to claim 1 is characterized in that: the trigger control end of handover module connects the USB-sound signal and detects trigger circuit, and this detects trigger circuit according to the information Control handover module action that detects.
3, playback equipment according to claim 2 is characterized in that: detect trigger circuit connection delay trigger circuit, postpone the trigger control end that trigger circuit output connects handover module, postpone the misoperation that trigger circuit are used to place change detection; Or serial connection one transposition switch in the detection trigger circuit.
4, playback equipment according to claim 1 is characterized in that: the moving switch of trigger control end catcher of handover module, 2 sound signal links of an action termination of this switch, 2 single data signals of another action termination usb circuit.
5, according to claim 1 or 2 or 3 or 4 described playback equipments, it is characterized in that: handover module is an electronic switch, 2 sound signal links of a termination of electronic switch, 2 single data signals of another termination usb circuit.
6, playback equipment according to claim 1, it is characterized in that: handover module is integrated in the control circuit, the detection of handover module triggers, postpones the output connection control circuit mouth line of trigger circuit, and control circuit switches according to the output signal that detects trigger circuit.
7, according to claim 3 or 6 described playback equipments, it is characterized in that: detection trigger circuit, delay trigger circuit are the RC delay circuit that resistance, electric capacity are formed, this circuit power end of connector power supply termination.
8, playback equipment according to claim 1 is characterized in that: handover module is a manual change-over switch.
9, according to claim 1 or 2 or 3 or 6 or 8 described playback equipments, it is characterized in that: establishing a signal connector on the described body is audio connector, this audio connector is provided with 2 sound signal links, audio frequency ground link and control signal link, connects 2 sound signals, sound signal ground and the control signal of audio output circuit respectively; Described data input/output interface circuit is a usb circuit, and described audio connector is provided with 2 sound signal links connect the USB of usb circuit respectively by handover module 2 single data signals; The audio frequency ground link of audio connector connects the signal ground of usb circuit; The control linkage end of audio connector connects the power supply of control circuit, and multiplexing with the USB power lead of described usb circuit.
10, according to claim 1 or 2 or 3 or 6 or 8 described playback equipments, it is characterized in that: establishing a signal connector on the described body is USB connector, wherein 2 usb signal lines connect the signal line end of usb circuits, respectively as 2 audio signal wires, connect the audio signal output end of audio output circuit by handover module; Connect the signal ground of usb circuit usb signal, multiplexing with audio output circuit ground end; The power supply of USB power lead connection control circuit, multiplexing with audio frequency control linkage end.
11, according to the arbitrary described playback equipment of claim, it is characterized in that: described equipment is audio player MP3, PDA, Digital Video DV, digital camera, portable PC or mobile phone.
12, a kind of usb data-sound signal multiplexing transmitting line, it is made up of the connector and the transmission electric wire at two ends, be used to connect the arbitrary playback equipment of claim 1-11, carry out exchanges data or output audio signal with outside another data storage or treatment facility, it is characterized in that: the connector at its two ends is respectively USB connector, audio connector, wherein, 2 sound signal links of audio connector connect 2 single data signal connection ends of USB connector respectively, the signal ground of audio connector is connected with the signal ground of USB connector, and the control signal end of audio connector connects the power end of USB connector.
13, the usb data of stating according to claim 12-sound signal multiplexing transmitting line is characterized in that: described USB connector is USB male joint or USB female joint.
14, the usb data of stating according to claim 13-sound signal multiplexing transmitting line is characterized in that: described USB male joint is the big joint or the little joint of standard; Perhaps described USB female joint is the big joint or the little joint of standard.
15, the usb data of stating according to claim 12,13 or 14-sound signal multiplexing transmitting line is characterized in that: described audio connector is audio jack or audio socket.
16, the usb data of stating according to claim 15-sound signal multiplexing transmitting line is characterized in that: described audio jack is divided into electric independently 4 sections, respectively is 2 sound signal links, audio frequency ground link and control signal link.
17, a kind of usb data-sound signal multiplexing transmitting broadcasting memory system that has, it is characterized in that: it comprises the transmission line that described equipment of claim 1 and claim 12 are stated, described transmission line one terminal adapter connects the corresponding signal connector of described equipment.
18, according to claim 17 usb data-sound signal multiplexing transmitting broadcasting memory system is arranged, it is characterized in that: described signal connector is an audio connector, and transmission line one terminal adapter is an audio connector, and this two connector is the male and female fit structure.
19, according to claim 17 usb data-sound signal multiplexing transmitting broadcasting memory system is arranged, it is characterized in that: described signal connector is a USB connector, and transmission line one terminal adapter is a USB connector, and this two USB connector is the male and female fit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100077184A CN100432964C (en) | 2005-02-08 | 2005-02-08 | Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system |
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| CNB2005100077184A CN100432964C (en) | 2005-02-08 | 2005-02-08 | Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system |
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| CN1818889A true CN1818889A (en) | 2006-08-16 |
| CN100432964C CN100432964C (en) | 2008-11-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101207256B (en) * | 2006-12-20 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Audio signal switching device |
| CN101917497A (en) * | 2010-07-23 | 2010-12-15 | 惠州Tcl移动通信有限公司 | Method and device for earphone and USB to share micro-USB interface |
| CN101316422B (en) * | 2008-07-01 | 2012-09-05 | 中兴通讯股份有限公司 | Mobile terminal and method for working as audio apparatus speaker |
| WO2012171496A1 (en) * | 2011-06-15 | 2012-12-20 | 天地融科技股份有限公司 | Audio signal receiver, adapter device and audio signal transmission system |
| CN103491235A (en) * | 2012-06-12 | 2014-01-01 | 联想(北京)有限公司 | Method and terminals for data transmission |
| CN104035357A (en) * | 2014-06-27 | 2014-09-10 | 广东欧珀移动通信有限公司 | Headset, charging and OTG equipment circuit design based on USB socket |
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| CN101626412A (en) * | 2009-08-10 | 2010-01-13 | 上海闻泰电子科技有限公司 | Mobile terminal circuit with multifunctional earphone socket and implementation method thereof |
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| CN1496166B (en) * | 2002-09-19 | 2011-06-15 | Lg电子株式会社 | USB communication equipment and method using mobile communication terminal earphone jack |
| JP4195807B2 (en) * | 2002-10-31 | 2008-12-17 | 株式会社オーディオテクニカ | Audio signal repeater |
| CN2599648Y (en) * | 2003-02-27 | 2004-01-14 | 深圳市联胜投资有限公司 | Network walkman |
| CN2657308Y (en) * | 2003-10-17 | 2004-11-17 | 福兴达科技实业（深圳）有限公司 | Miniature network digital code walkman |
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| CN101207256B (en) * | 2006-12-20 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Audio signal switching device |
| CN101316422B (en) * | 2008-07-01 | 2012-09-05 | 中兴通讯股份有限公司 | Mobile terminal and method for working as audio apparatus speaker |
| CN101917497A (en) * | 2010-07-23 | 2010-12-15 | 惠州Tcl移动通信有限公司 | Method and device for earphone and USB to share micro-USB interface |
| CN101917497B (en) * | 2010-07-23 | 2014-04-16 | 惠州Tcl移动通信有限公司 | Method and device for earphone and USB to share micro-USB interface |
| WO2012171496A1 (en) * | 2011-06-15 | 2012-12-20 | 天地融科技股份有限公司 | Audio signal receiver, adapter device and audio signal transmission system |
| US9344790B2 (en) | 2011-06-15 | 2016-05-17 | Tendyron Corporation | Audio signal receiving device, audio signal adapter device and system for transmitting audio signal |
| CN103491235A (en) * | 2012-06-12 | 2014-01-01 | 联想(北京)有限公司 | Method and terminals for data transmission |
| CN104035357A (en) * | 2014-06-27 | 2014-09-10 | 广东欧珀移动通信有限公司 | Headset, charging and OTG equipment circuit design based on USB socket |
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| CN100432964C (en) | 2008-11-12 |
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