CN102073470A - Electronic equipment and control method thereof - Google Patents
Electronic equipment and control method thereof Download PDFInfo
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- CN102073470A CN102073470A CN 200910247117 CN200910247117A CN102073470A CN 102073470 A CN102073470 A CN 102073470A CN 200910247117 CN200910247117 CN 200910247117 CN 200910247117 A CN200910247117 A CN 200910247117A CN 102073470 A CN102073470 A CN 102073470A
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Abstract
The invention discloses electronic equipment and a control method thereof. The electronic equipment has a data transmission function and an audio frequency play function. The electronic equipment comprises a signal connector and a control circuit, wherein the control circuit comprises a multiplexing control unit, an audio output circuit and a data input/output interface circuit; the audio output circuit and the data input/output interface circuit are connected with the signal connector; the multiplexing control unit can cause the data input/output transmission interface circuit to be in an opened state and the audio output circuit to be in a closed state under the condition of starting the data transmission function, thus realizing data transmission by using the data input/output interface circuit and the signal connector; and the multiplexing control unit can cause the audio output circuit to be in an opened state and the data input/output interface circuit to be in a closed state under the condition of starting the audio frequency play function, thus outputting the audio frequency by the audio output circuit and the signal connector. According to the embodiment of the invention, a universal serial bus (USB) and an audio interface can be multiplexed, and the equipment cost and the complexity are reduced.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of electronic equipment and control method thereof.
Background technology
Current multimedia player is extensively supported audio frequency and USB (Universal Serial BUS, USB (universal serial bus)) function, generally need dispose audio socket and USB socket simultaneously.USB of Chu Xianing and audio interface multiplexing scheme then can reduce cost in recent years, reduce the volume of multimedia player.
As shown in Figure 1, in known a kind of USB and audio interface multiplexing scheme, broadcasting memory is provided with control circuit 14, audio output circuit 15, USB control circuit and usb circuit 16 that control circuit comprises audio playing circuit and is connected with audio playing circuit, only establish a signal connector on the apparatus body, be audio connector---audio jack 11.Handover module is an electronic switch 13,2 sound signal links on the audio jack 11 connect 2 sound signals of audio output circuit 15 or 2 usb data signals of usb circuit 16 respectively by electronic switch 13, the ground of the ground link connection device body of audio jack 11, the control linkage end connects the power supply of control circuit 14, and is multiplexing with the USB power lead of usb circuit.The trigger control end of electronic switch 13 connects the USB-sound signal and detects, postpone trigger circuit output 12, the power end of USB interface inserts and detects trigger circuit 12, because the power supply signal that USB interface is come is a 5V voltage, therefore if what insert at interface is usb signal, the capacitor C 1 of this circuit begins charging, arrive the working value of electronic switch 13 when charging, 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 general serial data-interface that meets usb protocol, if in these audio jack 11 accesses are headset plugs, the detection trigger circuit are not usb signals interface detection access, electronic switch 13 switches to audio signal wire, the jack signal wire directly connects the audio output interface of control circuit, and the signal input/output interface of equipment becomes earphone interface.
Need electronic switch in the above-mentioned broadcasting memory, also need independent detection trigger circuit, cost and circuit complexity are higher.
Summary of the invention
The invention provides a kind of electronic equipment, described electronic equipment has data-transformation facility and voice playing function, described electronic equipment comprises: signal connector and control circuit, described control circuit comprise multiplexing control module and audio output circuit that is connected with described signal connector and data input/output interface circuit;
Described multiplexing control module is used for making described data input/output interface circuit be in opening under data-transformation facility is opened, and audio output circuit is in closed condition, to carry out data transmission by data input/output interface circuit, signal connector; Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, to pass through audio output circuit, signal connector output audio.
The present invention also provides a kind of control method of electronic equipment, described electronic equipment has data-transformation facility and voice playing function, and described electronic equipment comprises: signal connector and audio output circuit that is connected with described signal connector and data input/output interface circuit; Described control method comprises:
Under data-transformation facility is opened, make described data input/output interface circuit be in opening, audio output circuit is in closed condition, to carry out data transmission by data input/output interface circuit, signal connector;
Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, to pass through audio output circuit, signal connector output audio.
As can be seen from the above technical solutions, when embodiment of the invention realization USB and audio interface are multiplexing, do not need above-mentioned electronic switch and detect trigger circuit, therefore can reduce equipment cost and complexity.
Description of drawings
Fig. 1 is the USB of known a kind of broadcasting memory and the circuit diagram of audio interface multiplex circuit;
Fig. 2 is the USB of electronic equipment of one embodiment of the invention and the structured flowchart of audio interface multiplex circuit;
Fig. 3 is the USB of electronic equipment of another embodiment of the present invention and the circuit diagram of audio interface multiplex circuit;
Fig. 4 is the USB of electronic equipment of yet another embodiment of the invention and the circuit diagram of audio interface multiplex circuit;
Fig. 5 is the USB of electronic equipment of further embodiment of this invention and the circuit diagram of audio interface multiplex circuit;
Fig. 6 is the synoptic diagram of control method of the electronic equipment of one embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is further elaborated below in conjunction with accompanying drawing.
As shown in Figure 2, the electronic equipment 200 of one embodiment of the invention comprises: signal connector and control circuit, described control circuit comprise multiplexing control module and audio output circuit that is connected with described signal connector and data input/output interface circuit;
Described multiplexing control module is used under data-transformation facility is opened, make described data input/output interface circuit be in opening, audio output circuit is in closed condition, so that described electronic equipment carries out data transmission by data input/output interface circuit, signal connector; Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, so that described electronic equipment is by audio output circuit, signal connector output audio.
In the present invention, the data input/output interface circuit can be a usb circuit, and signal connector can be an audio jack.
As shown in Figure 3, the electronic equipment 300 of another embodiment of the present invention comprises: audio jack 20 and control circuit 80, control circuit 80 comprise audio output circuit 30, usb circuit 40 and multiplexing control module 50.Audio jack 20 have power connector end 21, link 22, first signal connection end 23 and secondary signal link 24, audio output circuit 30 has the first sound signal end 31 and the second sound signal end 32, and usb circuit 40 has the first usb signal line end 41 and the second usb signal line end 42.
First signal connection end 23 of audio jack 20 is connected respectively to first sound signal end 31 of audio output circuit 30 and the first usb signal line end 41 of usb circuit 40, secondary signal link 24 is connected respectively to second sound signal end 32 of audio output circuit 30 and the second usb signal line end 42 of usb circuit 40, ground link 22 ground connection of audio jack 20, power connector end 21 connects the power supply 60 of control circuit 80, and links to each other with the power lead of usb circuit 40.
In the present invention, multiplexing control module can be to be realized by hardware circuit, also can be to be realized by software, is perhaps realized by software and hardware combining.
The principle of work of present embodiment is described as follows: electronic equipment is under the usb data transfer function is opened, audio jack 20 has USB device to insert, usb circuit 40 is in opening, and audio output circuit 30 is in closed condition, export high-impedance state on its first, second sound signal end 31,32, can not influence the signal transmission on first, second usb signal line end 41,42, electronic equipment carries out data transmission by usb circuit 40, audio jack 20; Electronic equipment is under the voice playing function is opened, audio output circuit 30 is in opening, and usb circuit 40 is in closed condition, export high-impedance state on its first, second usb signal line end 41,42, can not influence the signal transmission on first, second sound signal end 31,32, electronic equipment carries out audio frequency output by audio output circuit 30, audio jack 20.
The electronic equipment of present embodiment can utilize audio jack to finish voice playing, also can utilize this audio jack to finish exchanges data between this equipment and other equipment (for example computing machine), do not need the electronic switch in the above-mentioned known technology and detect trigger circuit, can reduce equipment cost and circuit complexity.
As shown in Figure 4, the electronic equipment 400 of yet another embodiment of the invention is similar with electronic equipment 300, the difference part is, in the present embodiment, between the first sound signal end 31 of first signal connection end 23 of audio jack 20 and audio output circuit 30, have audio frequency coupling capacitance 25, between the second sound signal end 32 of the secondary signal link 24 of audio jack 20 and audio output circuit 30, have audio frequency coupling capacitance 26.
As shown in Figure 5, the electronic equipment 500 of further embodiment of this invention is similar with electronic equipment 300, the difference part is, in the present embodiment, control circuit 80 is realized by a chip, this chip has first pin 51 and second pin 52, the first sound signal end 31 is connected with first signal connection end 23 of audio jack 20 by first pin 51 with the first usb signal line end 41, and the second sound signal end 32 is connected with the secondary signal link 24 of audio jack 20 by second pin 52 with the second usb signal line end 42.
In the more embodiment of electronic equipment of the present invention, multiplexing control module can also be further used for the voice playing function close and described audio jack under the no plug insertion state, whether make described audio output circuit be in closed condition, making described data input/output interface circuit be in opening and detecting has USB device to insert in the described audio jack.
The present invention also provides a kind of embodiment of control method of electronic equipment, and this electronic equipment comprises signal connector and audio output circuit that is connected with described signal connector and data input/output interface circuit; Described control method comprises:
Under data-transformation facility is opened, make described data input/output interface circuit be in opening, audio output circuit is in closed condition, so that described electronic equipment carries out data transmission by data input/output interface circuit, signal connector;
Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, so that described electronic equipment is by audio output circuit, signal connector output audio.
Fig. 6 illustrates another embodiment of the control method of electronic equipment of the present invention, and described electronic equipment can have the feature of above-mentioned electronic equipment 300,400 or 500, and the control method of present embodiment comprises:
Under the original state, no plug inserts in the audio jack, and the voice playing function closes, and makes audio output circuit be in closed condition, and whether make usb circuit be in opening and detect has USB device to insert in the audio jack; Wherein, can detect whether the USB device access is arranged in the audio jack according to the power lead of usb circuit or the change in voltage of usb signal line, for example, if the voltage on the power lead is elevated to certain value (as 4V), or have at least the voltage of a usb signal line to raise, then can determine to have in the audio jack USB device to insert.
There is USB device to insert in the audio jack if detect, then keeps the opening of usb circuit and the closed condition of audio output circuit, so that electronic equipment carries out the usb data transmission by usb circuit, audio jack.USB end of transmission (EOT), usb circuit detect USB device extract after, control electronic equipment reenter original state.
If the voice playing function is opened, then the control audio output circuit is in opening, and usb circuit is in closed condition, makes electronic equipment pass through audio output circuit, audio jack output audio.After the voice playing function was closed, the control electronic equipment reentered original state.
Electronic equipment in the embodiment of the invention can be the electronic equipment that multimedia player, handheld device, PDA (Personal Digital Assistant, personal digital assistant), mobile phone etc. have voice playing and data storage function concurrently.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. electronic equipment, it is characterized in that, described electronic equipment has data-transformation facility and voice playing function, described electronic equipment comprises: signal connector and control circuit, described control circuit comprise multiplexing control module and audio output circuit that is connected with described signal connector and data input/output interface circuit;
Described multiplexing control module is used for making described data input/output interface circuit be in opening under data-transformation facility is opened, and audio output circuit is in closed condition, to carry out data transmission by data input/output interface circuit, signal connector; Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, to pass through audio output circuit, signal connector output audio.
2. electronic equipment as claimed in claim 1 is characterized in that, described data input/output interface circuit is a usb circuit.
3. electronic equipment as claimed in claim 2 is characterized in that:
Described signal connector have power connector end, link and first, second signal connection end, described audio output circuit has first, second sound signal end, described usb circuit has first, second usb signal line end;
Described first signal connection end is connected respectively to the described first sound signal end and the first usb signal line end, and described secondary signal link is connected respectively to the described second sound signal end and the second usb signal line end;
Described ground link ground connection, described power connector end connect power supply and link to each other with the power lead of described usb circuit.
4. electronic equipment as claimed in claim 3 is characterized in that, has the audio frequency coupling capacitance between described first signal connection end and the first sound signal end and between the described secondary signal link and the second sound signal end.
5. electronic equipment as claimed in claim 3 is characterized in that, described control circuit is to realize in a chip.
6. electronic equipment as claimed in claim 5 is characterized in that described chip has first, second pin; The described first sound signal end is connected with described first signal connection end by described first pin with the first usb signal line end, and the described second sound signal end is connected with described secondary signal link by described second pin with the second usb signal line end.
7. as each described electronic equipment of claim 1 to 6, it is characterized in that described signal connector is an audio jack.
8. electronic equipment as claimed in claim 7, it is characterized in that, described multiplexing control module also be used for the voice playing function close and the no plug insertion of described audio jack state under, whether make described audio output circuit be in closed condition, making described data input/output interface circuit be in opening and detecting has USB device to insert in the described audio jack.
9. the control method of an electronic equipment, it is characterized in that, described electronic equipment has data-transformation facility and voice playing function, and described electronic equipment comprises: signal connector and audio output circuit that is connected with described signal connector and data input/output interface circuit; Described control method comprises:
Under data-transformation facility is opened, make described data input/output interface circuit be in opening, audio output circuit is in closed condition, to carry out data transmission by data input/output interface circuit, signal connector;
Under the voice playing function is opened, make described audio output circuit be in opening, the data input/output interface circuit is in closed condition, to pass through audio output circuit, signal connector output audio.
10. method as claimed in claim 9 is characterized in that, described signal connector is an audio jack; Described data input/output interface circuit is a usb circuit; Described data-transformation facility is the usb data transfer function.
11. control method as claimed in claim 10 is characterized in that, described control method also comprises:
The voice playing function close and described audio jack under the no plug insertion state, make described audio output circuit be in closed condition, whether make described usb circuit be in opening and detect has USB device to insert in the described audio jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910247117 CN102073470B (en) | 2009-11-21 | 2009-11-21 | Electronic equipment and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910247117 CN102073470B (en) | 2009-11-21 | 2009-11-21 | Electronic equipment and control method thereof |
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| CN102073470A true CN102073470A (en) | 2011-05-25 |
| CN102073470B CN102073470B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910247117 Expired - Fee Related CN102073470B (en) | 2009-11-21 | 2009-11-21 | Electronic equipment and control method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097356A1 (en) * | 2011-12-26 | 2013-07-04 | 中兴通讯股份有限公司 | Hdmi multiplexing method, hdmi, and hdmi-equipped device |
| CN103888873A (en) * | 2014-03-04 | 2014-06-25 | 苏州佳世达电通有限公司 | Electronic device and UART output system and method |
| CN104363404A (en) * | 2014-10-28 | 2015-02-18 | 广州创维平面显示科技有限公司 | Terminal multiplex circuit and multimedia terminal equipment |
| CN105281153A (en) * | 2015-03-02 | 2016-01-27 | 维沃移动通信有限公司 | Interface, USB plug and mobile terminal |
| CN105975422A (en) * | 2016-05-27 | 2016-09-28 | 北京小米移动软件有限公司 | Switching equipment, terminal and switching method |
| WO2017161746A1 (en) * | 2016-03-25 | 2017-09-28 | 乐视控股（北京）有限公司 | User equipment |
| WO2020257975A1 (en) * | 2019-06-24 | 2020-12-30 | 深圳市大疆创新科技有限公司 | Multimedia playback device and control method therefor, and computer storage medium |
| CN114968867A (en) * | 2021-02-20 | 2022-08-30 | 华为技术有限公司 | Equipment and method for multiplexing audio bus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7895378B2 (en) * | 2004-04-27 | 2011-02-22 | Apple Inc. | Method and system for allowing a media player to transfer digital audio to an accessory |
| CN101035170A (en) * | 2006-03-09 | 2007-09-12 | 林春云 | USB-interface based voice communication method and device |
| US8090130B2 (en) * | 2006-09-11 | 2012-01-03 | Apple Inc. | Highly portable media devices |
| CN100524508C (en) * | 2006-12-29 | 2009-08-05 | 北京中星微电子有限公司 | Audio playing device |
| CN101339542B (en) * | 2008-06-04 | 2012-08-29 | 炬才微电子（深圳）有限公司 | Data transmission device, control circuit chip and operation mode control method |
-
2009
- 2009-11-21 CN CN 200910247117 patent/CN102073470B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097356A1 (en) * | 2011-12-26 | 2013-07-04 | 中兴通讯股份有限公司 | Hdmi multiplexing method, hdmi, and hdmi-equipped device |
| CN103888873A (en) * | 2014-03-04 | 2014-06-25 | 苏州佳世达电通有限公司 | Electronic device and UART output system and method |
| CN103888873B (en) * | 2014-03-04 | 2017-06-16 | 苏州佳世达电通有限公司 | Electronic installation, UART output systems and method |
| CN104363404A (en) * | 2014-10-28 | 2015-02-18 | 广州创维平面显示科技有限公司 | Terminal multiplex circuit and multimedia terminal equipment |
| CN105281153A (en) * | 2015-03-02 | 2016-01-27 | 维沃移动通信有限公司 | Interface, USB plug and mobile terminal |
| CN105281153B (en) * | 2015-03-02 | 2018-08-17 | 维沃移动通信有限公司 | A kind of interface, USB plug and mobile terminal |
| WO2017161746A1 (en) * | 2016-03-25 | 2017-09-28 | 乐视控股（北京）有限公司 | User equipment |
| CN105975422A (en) * | 2016-05-27 | 2016-09-28 | 北京小米移动软件有限公司 | Switching equipment, terminal and switching method |
| CN105975422B (en) * | 2016-05-27 | 2018-11-23 | 北京小米移动软件有限公司 | A kind of switching equipment, terminal and switching method |
| WO2020257975A1 (en) * | 2019-06-24 | 2020-12-30 | 深圳市大疆创新科技有限公司 | Multimedia playback device and control method therefor, and computer storage medium |
| CN114968867A (en) * | 2021-02-20 | 2022-08-30 | 华为技术有限公司 | Equipment and method for multiplexing audio bus |
| CN114968867B (en) * | 2021-02-20 | 2024-03-01 | 华为技术有限公司 | Device and method for multiplexing audio buses |
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| CN102073470B (en) | 2012-12-26 |
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Owner name: JUXIN(ZHUHAI) TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JULI INTEGRATED CIRCUIT DESIGN CO., LTD. Effective date: 20141212 |
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Effective date of registration: 20141212 Address after: 519085, C, No. 1, No. four, 1 hi tech Zone, Tang Wan Town, Guangdong, Zhuhai Patentee after: ACTIONS (ZHUHAI) TECHNOLOGY Co.,Ltd. Address before: 15 -A101, 1, ha Da Gong Road, Tang Wan Town, Guangdong, Zhuhai, 519085 Patentee before: ACTIONS SEMICONDUCTOR Co.,Ltd. |
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Address after: 519085 High-tech Zone, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee after: ACTIONS TECHNOLOGY Co.,Ltd. Address before: 519085 High-tech Zone, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee before: ACTIONS (ZHUHAI) TECHNOLOGY Co.,Ltd. |
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