CN202475500U - USB circuit for handset and the handset - Google Patents
USB circuit for handset and the handset Download PDFInfo
- Publication number
- CN202475500U CN202475500U CN2011205509414U CN201120550941U CN202475500U CN 202475500 U CN202475500 U CN 202475500U CN 2011205509414 U CN2011205509414 U CN 2011205509414U CN 201120550941 U CN201120550941 U CN 201120550941U CN 202475500 U CN202475500 U CN 202475500U
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- usb
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- differential data
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Abstract
The utility model discloses a USB circuit for a handset and the handset. The handset circuit board is provided with a USB interface, a video converting circuit for transforming RGB/HDMI high definition signals into MHL signals, and a change-over switch used for switching the output of the USB signals and the MHL signals, wherein the video converting circuit is connected with a change-over switch; and the change-over switch is connected with the USB interface. The RGB/HDMI high definition signals are transformed into the MHL signals via the video converting circuit and then the signals are input into the change-over switch. The change-over switch carries out output judgment based on the control of the video converting circuit. When it is judged that the output is USB signal, the USB signal will be output to the USB interface, with the USB data line being used for realizing the transmission of the USB data. When it is judged that the output is MHL signal, the MHL signal is also output to the USB interface, with the playing of the high definition film being realized by plugging a high definition data line into the USB interface.
Description
Technical field
The utility model relates to mobile phone circuit, relates in particular to a kind of USB circuit and mobile phone thereof of mobile phone.
Background technology
Along with the development of HDMI (High Definition Multimedia Interface, HDMI) technology, the function of increasing mobile phone is integrated HDMI is used for high-definition movie and plays.Following prospect will pass to the high definition media content of storing on the personal mobile phone on the TV of high definition and play.If can combine the media content of storing on the personal mobile phone with this HDTV, just can bring high-quality Voice & Video effect.But existing HDMI standard interface is very big, is not suitable on mobile phone, using.
Therefore, prior art awaits improving and development.
Summary of the invention
The purpose of the utility model is to provide a kind of mobile phone USB circuit and the mobile phone thereof that can the HD video on the mobile phone be play on HDTV or computer through USB interface.
The technical scheme of the utility model is following:
A kind of USB circuit of mobile phone comprises that one is used to transmit the USB interface of usb signal, wherein, also comprises:
One is used for the RGB/HDMI high-definition signal is transferred to the video conversion circuit of MHL signal;
One is used to switch the diverter switch of usb signal and the output of MHL signal;
Said video conversion circuit connects diverter switch, and said diverter switch connects USB interface.
The USB circuit of described a kind of mobile phone, wherein, it is the chip of SIL 9232 that described video conversion circuit adopts model.
The USB circuit of described a kind of mobile phone, wherein, the model of described diverter switch is FSA3000; Described diverter switch the 1st pin connects the positive pole of differential data, and the 2nd pin connects the negative pole of USB differential data, and the 3rd pin connects the positive pole of MHL differential data; The 4th pin connects the negative pole of MHL differential data; 5th, 6 pin ground connection, the 7th pin connects the negative pole of USB differential data or the negative pole of MHL differential data, and the 8th pin connects the positive pole of USB differential data or the positive pole of MHL differential data; The 9th pin connects SIL 9232 chips, the 10th pin input high level.
The USB circuit of described a kind of mobile phone wherein, comprises that also one is used to judge the resistance of switching signal, and an end of said resistance divides two-way, and one the tunnel connects the 9th pin of described diverter switch, and another road connects SIL 9232 chips, the other end ground connection of said resistance.
A kind of mobile phone comprises phone housing and circuit board, and said circuit board is arranged in the phone housing, said circuit board be provided with one be used to transmit usb signal USB interface, wherein, said circuit board also is provided with,
One is used for the RGB/HDMI high-definition signal is transferred to the video conversion circuit of MHL signal;
One is used to switch the diverter switch of usb signal and the output of MHL signal;
Said video conversion circuit connects diverter switch, and said diverter switch connects USB interface.
Described a kind of mobile phone, wherein, it is the chip of SIL 9232 that described video conversion circuit adopts model.
Described a kind of mobile phone, wherein, the model of described diverter switch is FSA3000; Described diverter switch the 1st pin connects the positive pole of differential data, and the 2nd pin connects the negative pole of USB differential data, and the 3rd pin connects the positive pole of MHL differential data; The 4th pin connects the negative pole of MHL differential data; 5th, 6 pin ground connection, the 7th pin connects the negative pole of USB differential data or the negative pole of MHL differential data, and the 8th pin connects the positive pole of USB differential data or the positive pole of MHL differential data; The 9th pin connects SIL 9232 chips, the 10th pin input high level.
Described a kind of mobile phone wherein, comprises that also one is used to judge the resistance of switching signal, and an end of said resistance divides two-way, and one the tunnel connects the 9th pin of described diverter switch, and another road connects SIL 9232 chips, the other end ground connection of said resistance.
The utility model transfers the RGB/HDMI high-definition signal to the MHL signal through the video conversion circuit of mobile phone; Input is used to switch the diverter switch of usb signal and MHL signal again, and said diverter switch is exported judgement according to the control of video conversion circuit, when after judging, being output as usb signal; Usb signal is outputed to USB interface; Can realize the transmission of usb data through the usb data line, when after judging, being output as the MHL signal, the MHL signal also outputed to USB interface; Be inserted into USB interface through the high definition data wire, can realize the broadcast of high-definition movie.
Description of drawings
Fig. 1 is the USB circuit of a kind of mobile phone of the utility model and the structure chart of mobile phone thereof.
Fig. 2 is switching switch circuit figure in USB circuit and the mobile phone preferred embodiment thereof of a kind of mobile phone of the utility model.
Embodiment
The utility model provides a kind of USB circuit and mobile phone thereof of mobile phone, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below with reference to accompanying drawing and give an actual example to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model discloses a kind of USB circuit of mobile phone; As shown in Figure 1; Comprise that one is used to transmit the USB interface of usb signal, one is used for the RGB/HDMI high-definition signal is transferred to the video conversion circuit U2 of MHL signal, and one is used to switch the diverter switch U1 of usb signal and the output of MHL signal; Said video conversion circuit U2 connects diverter switch U1, and said diverter switch U1 connects USB interface.After said video conversion circuit U2 transfers the RGB/HDMI high-definition signal to the MHL signal; Be input to diverter switch U1, said diverter switch U1 exports judgement according to the control of video conversion circuit U2, when after judging, being output as usb signal; Usb signal is outputed to USB interface; Can realize the transmission of usb data through the usb data line, when after judging, being output as the MHL signal, the MHL signal also outputed to USB interface; Be inserted into USB interface through the high definition data wire, can realize the broadcast of high-definition movie.
Particularly, described video conversion circuit employing model is the chip of SIL 9232.The SIL9232 chip of being produced by Silicon Image company can become the MHL signal with the RGB/HDMI conversion of signals, is prior art because the RGB/HDMI conversion of signals is become the MHL signal, repeats no more at this.
As shown in Figure 2, be the circuit diagram of diverter switch in the preferred embodiment.The model of described diverter switch U1 is FSA3000, and described diverter switch U1 the 1st pin connects the positive pole (being USB_DP) of USB differential data, and the 2nd pin connects the negative pole (being USB_DN) of USB differential data; The 3rd pin connects the positive pole (being MHL_DP) of MHL differential data; The 4th pin connects the negative pole (being MHL_DN) of MHL differential data, the 5th pin ground connection, and the 6th pin is the enable signal of diverter switch U1; Low level is effective; The 6th pin is ground connection also, and the 7th pin is the negative pole of diverter switch U1 path, judges the negative pole of output USB differential data or the negative pole of MHL differential data according to the 9th pin path; The 8th pin is the positive pole of diverter switch U1 path; Judge the positive pole of output USB differential data or the positive pole of MHL differential data according to the 9th pin path, the 9th pin connects SIL 9232 chips, by the USB_MHL_SEL signal controlling of SIL 9232 chips output; When the USB_MHL_SEL signal was high level, promptly the 7th, 8 pins were exported the positive pole and the negative pole of MHL differential data respectively; When the USB_MHL_SEL signal was low level, the 7th, 8 pins were exported the positive pole and the negative pole of USB differential data respectively.The 10th pin connects power supply, and voltage is 3.3V.
Particularly, also comprise first capacitor C 1 and second capacitor C 2, the 10th pin of described diverter switch U1 connects first capacitor C 1 and second capacitor C, 2 one ends, said first capacitor C 1 and second capacitor C, 2 other end ground connection.First capacitor C 1 and second capacitor C 2 mainly play the voltage regulation filtering effect.
Particularly, comprise that also one is used to judge the resistance R 1 of switching signal, an end of said resistance R 1 divide two the tunnel, the one tunnel connect described diverter switch U1 the 9th pin, another road connects SIL 9232 chips, the other end ground connection of said resistance.By default; Chip SIL9232 does not work, because the resistance R 1 on the MHL_USB_SEL signal, this moment, MHL_USB_SEL was a low level; It is low level that the 9th pin is selected signal, and the 7th, 8 pins of diverter switch are exported the positive pole and the negative pole of USB differential data respectively.USB interface output this moment usb signal.After the user is inserted into the USB line on the USB interface, can realize output transmission with PC.When the user selected high definition to play, it was high level that chip SIL9232 will control MHL_USB_SEL, and the 7th, 8 pins of diverter switch are exported the positive pole and the negative pole of MHL differential data respectively, USB interface output this moment MHL signal.When selecting MHL output, after line that the user plays the high-definition movie of special use is inserted on the USB interface, be connected on the TV of high definition, just can realize that high-definition movie play.
In sum, the utility model can be realized usb signal transmission and the broadcast of MHL high definition with a USB interface, uses diverter switch U1 to carry out the switching of USB transmission and the broadcast of MHL high definition.When the user selected high definition to play, diverter switch U1 output MHL high definition play signal was to USB interface.When the user did not select high definition to play, diverter switch U1 output usb signal was to USB interface.
The invention also discloses a kind of mobile phone; Comprise phone housing 10 and circuit board 20; Said circuit board 20 is arranged in the phone housing 10; Said circuit board 20 be provided with one be used to transmit usb signal USB interface, said circuit board 20 also be provided with one be used for the RGB/HDMI high-definition signal is transferred to the MHL signal video conversion circuit U2; One is used to switch the diverter switch U1 of usb signal and the output of MHL signal; Said video conversion circuit U2 connects diverter switch U1, and said diverter switch U1 connects USB interface.The concrete circuit theory of said mobile phone sees also the technical scheme of the USB circuit of above-mentioned a kind of mobile phone.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection range of the utility model accompanying claims according to above-mentioned explanation.
Claims (8)
1. the USB circuit of a mobile phone comprises that one is used to transmit the USB interface of usb signal, it is characterized in that, also comprises:
One is used for the RGB/HDMI high-definition signal is transferred to the video conversion circuit of MHL signal;
One is used to switch the diverter switch of usb signal and the output of MHL signal;
Said video conversion circuit connects diverter switch, and said diverter switch connects USB interface.
2. the USB circuit of a kind of mobile phone as claimed in claim 1 is characterized in that, it is the chip of SIL 9232 that described video conversion circuit adopts model.
3. the USB circuit of a kind of mobile phone as claimed in claim 2 is characterized in that, the model of described diverter switch is FSA3000; Described diverter switch the 1st pin connects the positive pole of differential data, and the 2nd pin connects the negative pole of USB differential data, and the 3rd pin connects the positive pole of MHL differential data; The 4th pin connects the negative pole of MHL differential data; 5th, 6 pin ground connection, the 7th pin connects the negative pole of USB differential data or the negative pole of MHL differential data, and the 8th pin connects the positive pole of USB differential data or the positive pole of MHL differential data; The 9th pin connects SIL 9232 chips, the 10th pin input high level.
4. the USB circuit of a kind of mobile phone as claimed in claim 3 is characterized in that, comprises that also one is used to judge the resistance of switching signal; One end of said resistance divides two-way; One the tunnel connects the 9th pin of described diverter switch, and another road connects SIL 9232 chips, the other end ground connection of said resistance.
5. a mobile phone comprises phone housing and circuit board, and said circuit board is arranged in the phone housing, said circuit board be provided with one be used to transmit usb signal USB interface, it is characterized in that said circuit board also is provided with,
One is used for the RGB/HDMI high-definition signal is transferred to the video conversion circuit of MHL signal;
One is used to switch the diverter switch of usb signal and the output of MHL signal;
Said video conversion circuit connects diverter switch, and said diverter switch connects USB interface.
6. a kind of mobile phone as claimed in claim 5 is characterized in that, it is the chip of SIL 9232 that described video conversion circuit adopts model.
7. a kind of mobile phone as claimed in claim 6 is characterized in that, the model of described diverter switch is FSA3000; Described diverter switch the 1st pin connects the positive pole of differential data, and the 2nd pin connects the negative pole of USB differential data, and the 3rd pin connects the positive pole of MHL differential data; The 4th pin connects the negative pole of MHL differential data; 5th, 6 pin ground connection, the 7th pin connects the negative pole of USB differential data or the negative pole of MHL differential data, and the 8th pin connects the positive pole of USB differential data or the positive pole of MHL differential data; The 9th pin connects SIL 9232 chips, the 10th pin input high level.
8. a kind of mobile phone as claimed in claim 7 is characterized in that, comprises that also one is used to judge the resistance of switching signal; One end of said resistance divides two-way; One the tunnel connects the 9th pin of described diverter switch, and another road connects SIL 9232 chips, the other end ground connection of said resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205509414U CN202475500U (en) | 2011-12-26 | 2011-12-26 | USB circuit for handset and the handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205509414U CN202475500U (en) | 2011-12-26 | 2011-12-26 | USB circuit for handset and the handset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475500U true CN202475500U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205509414U Expired - Fee Related CN202475500U (en) | 2011-12-26 | 2011-12-26 | USB circuit for handset and the handset |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932683A (en) * | 2012-10-26 | 2013-02-13 | 深圳Tcl新技术有限公司 | Mobile high-definition link (MHL) realizing method and video playing device |
| CN103902495A (en) * | 2012-12-25 | 2014-07-02 | 纬创资通股份有限公司 | Interface switching system and method for switching operation mode |
| CN104796744A (en) * | 2014-01-20 | 2015-07-22 | 宏碁股份有限公司 | video playback system |
| CN107229579A (en) * | 2014-06-09 | 2017-10-03 | 青岛海信移动通信技术股份有限公司 | The USB mode of USB interface and the compatibility method and device of MHL patterns |
| CN108810621A (en) * | 2018-05-25 | 2018-11-13 | 青岛海信移动通信技术股份有限公司 | A kind of playback method of video data, device, mobile terminal and storage medium |
| CN112399002A (en) * | 2020-11-21 | 2021-02-23 | 薄涛 | Android mobile phone with self-body screen-free function and external screen |
-
2011
- 2011-12-26 CN CN2011205509414U patent/CN202475500U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932683A (en) * | 2012-10-26 | 2013-02-13 | 深圳Tcl新技术有限公司 | Mobile high-definition link (MHL) realizing method and video playing device |
| CN103902495A (en) * | 2012-12-25 | 2014-07-02 | 纬创资通股份有限公司 | Interface switching system and method for switching operation mode |
| CN103902495B (en) * | 2012-12-25 | 2016-12-28 | 纬创资通股份有限公司 | Interface switching system and method for switching operation mode |
| CN104796744A (en) * | 2014-01-20 | 2015-07-22 | 宏碁股份有限公司 | video playback system |
| CN104796744B (en) * | 2014-01-20 | 2019-05-03 | 宏碁股份有限公司 | video playing system |
| CN107229579A (en) * | 2014-06-09 | 2017-10-03 | 青岛海信移动通信技术股份有限公司 | The USB mode of USB interface and the compatibility method and device of MHL patterns |
| CN108810621A (en) * | 2018-05-25 | 2018-11-13 | 青岛海信移动通信技术股份有限公司 | A kind of playback method of video data, device, mobile terminal and storage medium |
| CN112399002A (en) * | 2020-11-21 | 2021-02-23 | 薄涛 | Android mobile phone with self-body screen-free function and external screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20131226 |