CN202383657U - Screen mirror image wireless transmission device for computer - Google Patents
Screen mirror image wireless transmission device for computer Download PDFInfo
- Publication number
- CN202383657U CN202383657U CN 201120555964 CN201120555964U CN202383657U CN 202383657 U CN202383657 U CN 202383657U CN 201120555964 CN201120555964 CN 201120555964 CN 201120555964 U CN201120555964 U CN 201120555964U CN 202383657 U CN202383657 U CN 202383657U
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- panel computer
- mirror image
- screen mirror
- signal
- tablet personal
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Abstract
The utility model relates to a screen mirror image wireless transmission device for a computer, which belongs to the technical field of computer peripheral equipment and comprises a high-definition multi-media receiver, a multi-media processor and a universal serial bus controller. The high-definition multi-media receiver is connected with a high-definition multi-media interface of a tablet personal computer, and the multi-media processor is connected with the high-definition multi-media receiver and the universal serial bus controller. The screen mirror image wireless transmission device obtains uncompressed digital video signals directly from the tablet personal computer and sends the digital video signals to the tablet personal computer after performing compressed encoding to the digital video signals, and the tablet personal computer transmits screen mirror images to a television or a projector which has a wireless network-connection function through a wireless network in a streaming media mode. The screen mirror image wireless transmission device can perform wireless transmission of the screen mirror images without acquiring superuser rights of an android operating system of the tablet personal computer, and is compatible to tablet personal computers with screens of various sizes.
Description
Technical field
The utility model relates to a kind of screen mirror image radio transmitting device that is used for computing machine, belongs to the computer peripheral technical field.
Background technology
Panel computer (English: Tablet Personal Computer; Be called for short Tablet PC) be a kind of small-sized, PC of being convenient for carrying; The touch-screen that utilization is installed in before the LCDs replaces mouse and keyboard to carry out man-machine interaction, has outstanding advantages such as easy to carry, OnNow, easy and simple to handle and online whenever and wherever possible.
Along with panel computer extensively popularizing in applications such as family, school and enterprises; The user hopes in the family parlor, classroom or company's meeting room; Be transferred to the panel computer screen content on the televisor or projector with wireless networking function through the wireless mode mirror image; Appreciate photo, film or watch Web content with other kinsfolks, or demonstrate Multimedia Teaching Courseware to the student, or show the commercial exhibition manuscript to spectators at meeting room in the classroom.
Apple provides AirPlay Mirroring wireless mirror image output mode in the iPad panel computer iOS5 operating system of issue on June 7th, 2011, can the screen picture of iPad panel computer be transferred on the Apple TV receiver with wireless mode.
Because the Android operating system of Google company is not similar to the function of the wireless mirror image output mode of AirPlay Mirroring, therefore the panel computer based on Android operating system can't be transferred to screen picture on televisor or the projector with wireless mode at present.
In order to make panel computer transmit screen picture with wireless mode based on Android operating system; Taiwan strange Yang Wangke company has developed Android Sender screen mirror image transmitter; Its principle of work block diagram is as shown in Figure 1; At first from the display-memory of panel computer, obtain the screen digital picture, the screen digital picture is carried out data compression, be transferred on the televisor or projector with wireless networking function with the Streaming Media form through radio network controller then by central processing unit.
There is following problem in screen mirror image transmitter software in applying process:
(1) superuser right problem.Screen mirror image transmitter software must obtain the screen digital picture from the display-memory of panel computer; But Android operating system is forbidden domestic consumer's visit display-memory, has only the system power user of called after Root just to have the authority of visit display-memory.In order to guarantee the security of panel computer Android operating system, manufacturer does not open the Root authority to the user, even so the user obtain screen mirror image transmitter software, also can't be installed on the panel computer.
(2) compatibility issue.Panel computer production firm based on Android operating system is numerous; Screen size varies; Cause the panel computer display-memory of each model to be not quite similar; Even the user can crack the Root authority of panel computer Android operating system, screen mirror image transmitter software can not guarantee operate as normal on this model panel computer.
Summary of the invention
The purpose of the utility model is to propose a kind of screen mirror image radio transmitting device that is used for computing machine; Directly obtain the uncompressed digital video signal from the HDMI of panel computer; Be transferred on the televisor or projector with wireless networking function through radio network controller, to be applicable to the panel computer of several operation systems.
The screen mirror image radio transmitting device that is used for computing machine that the utility model proposes comprises:
The high-definition multimedia receiver; Be used to receive the clear degree multimedia form of no compression high definition signal from panel computer; And will not have the clear degree multimedia form of compression high definition conversion of signals be RGB component format signal; Send RGB component format signal to multimedia processor then, the high-definition multimedia receiver links to each other with the HDMI of panel computer;
Multimedia processor is used for the RGB component format signal that receives is carried out compressed encoding, obtains the compressed encoding signal, sends the compressed encoding signal to USB controller then, and multimedia processor links to each other with the high-definition multimedia receiver;
USB controller; Being used for the compressed encoding conversion of signals that receives is serial signal; Send serial signal the central processing unit of panel computer to through the USB of panel computer then, USB controller links to each other with the USB of panel computer.
The screen mirror image radio transmitting device that is used for computing machine that the utility model proposes; Need not from the display-memory of panel computer, to read the screen picture data; But directly obtain digital video signal from the outside HDMI of panel computer; It is carried out the USB through panel computer sends panel computer to behind the compressed encoding, panel computer sends the screen mirror image on the televisor or projector with wireless networking function to the Streaming Media mode through wireless network.Need not obtain the Root superuser right of panel computer Android operating system; Be applicable to all panel computers based on Android operating system; And the panel computer of compatible various screen sizes, the screen mirror image wireless transmission that has solved the Android panel computer need be obtained the problem of Root superuser right.
Description of drawings
Fig. 1 is that existing computer screen mirror image sends the principle of work block diagram.
Fig. 2 is the structured flowchart of the screen mirror image radio transmitting device that is used for computing machine of the utility model proposition.
Embodiment
The screen mirror image radio transmitting device that is used for computing machine that the utility model proposes, its structured flowchart is as shown in Figure 2, comprising:
The high-definition multimedia receiver; Be used to receive the clear degree multimedia form of no compression high definition signal from panel computer; And will not have the clear degree multimedia form of compression high definition conversion of signals be RGB component format signal; Send RGB component format signal to multimedia processor then, the high-definition multimedia receiver links to each other with the HDMI of panel computer;
Multimedia processor is used for the RGB component format signal that receives is carried out compressed encoding, obtains the compressed encoding signal, sends the compressed encoding signal to USB controller then, and multimedia processor links to each other with the high-definition multimedia receiver;
USB controller; Being used for the compressed encoding conversion of signals that receives is serial signal; Send serial signal the central processing unit of panel computer to through the USB of panel computer then, USB controller links to each other with the USB of panel computer.
The screen mirror image radio transmitting device that the utility model proposes; Need not to obtain the Root superuser right of panel computer Android operating system; Just can obtain digital video signal, thereby can solve the problem that screen mirror image transmitter software runs into from the external interface of panel computer.
When using the screen mirror image radio transmitting device of the utility model proposition; Described high-definition multimedia receiver links to each other with the HDMI of panel computer, and described USB controller links to each other with the USB of panel computer.
High-definition multimedia receiver wherein is used to receive HDMI (the High Definition Multimedia Interface) format signal of panel computer HDMI, and converts the HDMI format signal into RGB (Red Green Blue) RGB component format signal and send multimedia processor to;
Multimedia processor wherein is used for RGB RGB component format signal is carried out compressed encoding, exports to USB controller then;
The compressed encoding conversion of signals that USB controller wherein is used for multimedia processor output is a serial signal, and the USB through panel computer sends the panel computer central processing unit to then.
In the screen mirror image radio transmitting device of the utility model, the high-definition multimedia receiver can adopt the R8J66030FT chip of Rui Sa scientific & technical corporation; Multimedia processor can adopt the Hi3532 encode processor chip of Hai Si semiconductor company; USB controller can adopt the CY7C68003 chip of Cypress company.
The principle of work of the utility model screen mirror image radio transmitting device is:
High-definition multimedia receiver one end of screen mirror image radio transmitting device links to each other with the HDMI of panel computer, and USB controller one end links to each other with the panel computer USB.The high-definition multimedia receiver receive not to have the HDMI format signal of compression from the panel computer HDMI, and converts the HDMI format signal into RGB RGB component format signal and send multimedia processor to; Multimedia processor carries out compressed encoding to RGB RGB component format signal, exports to USB controller then; USB controller is a serial signal with the compressed encoding conversion of signals, and the USB through panel computer sends the panel computer central processing unit to.
In sum; The utility model is innovated the screen mirror image radio transmitting method based on Android operating system panel computer in design; The Root superuser right that need not obtain panel computer Android operating system reads the screen picture data from the display-memory of panel computer; Directly the outside HDMI from panel computer obtains the uncompressed digital video signal; Be applicable to all panel computers, solved the superuser right problem and the compatibility issue of existing Android panel computer screen mirror image Radio Transmission Technology based on Android operating system.
Claims (1)
1. screen mirror image radio transmitting device that is used for computing machine is characterized in that this transmitting device comprises:
The high-definition multimedia receiver; Be used to receive the clear degree multimedia form of no compression high definition signal from panel computer; And will not have the clear degree multimedia form of compression high definition conversion of signals be RGB component format signal; Send RGB component format signal to multimedia processor then, the high-definition multimedia receiver links to each other with the HDMI of panel computer;
Multimedia processor is used for the RGB component format signal that receives is carried out compressed encoding, obtains the compressed encoding signal, sends the compressed encoding signal to USB controller then, and multimedia processor links to each other with the high-definition multimedia receiver;
USB controller; Being used for the compressed encoding conversion of signals that receives is serial signal; Send serial signal the central processing unit of panel computer to through the USB of panel computer then, USB controller links to each other with the USB of panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120555964 CN202383657U (en) | 2011-12-27 | 2011-12-27 | Screen mirror image wireless transmission device for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120555964 CN202383657U (en) | 2011-12-27 | 2011-12-27 | Screen mirror image wireless transmission device for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383657U true CN202383657U (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120555964 Expired - Lifetime CN202383657U (en) | 2011-12-27 | 2011-12-27 | Screen mirror image wireless transmission device for computer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202383657U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414783A (en) * | 2013-08-21 | 2013-11-27 | 乐视致新电子科技（天津）有限公司 | Method and device for data transmission |
| WO2016201848A1 (en) * | 2015-06-15 | 2016-12-22 | 深圳市美德医疗电子技术有限公司 | Transmission method and device for hdmi audio/video signal |
| US9888282B2 (en) | 2012-12-04 | 2018-02-06 | Untethered Technology, Llc | Wireless video/audio signal transmitter/receiver |
| WO2019179399A1 (en) * | 2018-03-19 | 2019-09-26 | 广州视源电子科技股份有限公司 | Data transmission device, and data transmission method |
| US11205397B2 (en) | 2018-03-19 | 2021-12-21 | Guangzhou Shiyuan Electronics Co., Ltd. | Data transmission device and data transmission method |
-
2011
- 2011-12-27 CN CN 201120555964 patent/CN202383657U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9888282B2 (en) | 2012-12-04 | 2018-02-06 | Untethered Technology, Llc | Wireless video/audio signal transmitter/receiver |
| US10219031B2 (en) | 2012-12-04 | 2019-02-26 | Untethered Technology, Llc | Wireless video/audio signal transmitter/receiver |
| CN103414783A (en) * | 2013-08-21 | 2013-11-27 | 乐视致新电子科技（天津）有限公司 | Method and device for data transmission |
| WO2016201848A1 (en) * | 2015-06-15 | 2016-12-22 | 深圳市美德医疗电子技术有限公司 | Transmission method and device for hdmi audio/video signal |
| WO2019179399A1 (en) * | 2018-03-19 | 2019-09-26 | 广州视源电子科技股份有限公司 | Data transmission device, and data transmission method |
| EP3701714A4 (en) * | 2018-03-19 | 2021-02-17 | Guangzhou Shiyuan Electronics Co., Ltd. | Conference system, tool, and peripheral devices |
| EP3757752A4 (en) * | 2018-03-19 | 2021-04-21 | Guangzhou Shiyuan Electronics Co., Ltd. | Data transmission device, and data transmission method |
| US11194539B2 (en) | 2018-03-19 | 2021-12-07 | Guangzhou Shiyuan Electronics Co., Ltd. | Conference system, tool, and peripheral devices |
| US11205397B2 (en) | 2018-03-19 | 2021-12-21 | Guangzhou Shiyuan Electronics Co., Ltd. | Data transmission device and data transmission method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170124 Address after: 100084 Zhongguancun Haidian District East Road No. 1, building 2, building, 6204 Patentee after: Purple cloud delicacy (Beijing) Information Services Limited Address before: 100084 Beijing city Haidian District Tsinghua University Unisplendour building room 605 Patentee before: Unis Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20181106 Address after: 100084 room 605, purple light building, Tsinghua University, Haidian District, Beijing. Patentee after: Unis Co., Ltd. Address before: 100084 Beijing Haidian District Zhongguancun East Road 1 hospital 2 building 6204 Patentee before: Purple cloud delicacy (Beijing) Information Services Limited |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190218 Address after: Room 503, 5th floor, No. 2 Building, Zhongguancun East Road, Haidian District, Beijing 100084 Patentee after: Beijing Ziguang Beijing Science and Technology Co Ltd Address before: 100084 room 605, purple light building, Tsinghua University, Haidian District, Beijing. Patentee before: Unis Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
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| CX01 | Expiry of patent term |