CN108710481B - USB wired co-screen system - Google Patents
USB wired co-screen system Download PDFInfo
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- CN108710481B CN108710481B CN201810479066.1A CN201810479066A CN108710481B CN 108710481 B CN108710481 B CN 108710481B CN 201810479066 A CN201810479066 A CN 201810479066A CN 108710481 B CN108710481 B CN 108710481B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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Abstract
The invention discloses a USB wired co-screen system, which adopts a first signal processing module arranged on mobile equipment to collect video signals of the mobile equipment, adopts a USB data line connected with a connecting terminal signal processing module in series to convert the video signals, and adopts a second signal processing module arranged on fixed equipment to receive and control the playing of the video signals, thereby stably realizing the wired synchronization from small screen display to large screen display of the mobile equipment, and improving the input efficiency of mobile office and the operation experience during game playing. The same-screen system is simple in structure, low in cost, convenient to use and high in universality.
Description
Technical Field
The invention belongs to the circuit technology, and particularly relates to a communication system between electronic equipment.
Background
Various types of personal mobile electronic devices have become popular. The synchronous display of the mobile device and the large-screen device generally adopts a WiFi wireless mode. The synchronous display in a wireless mode has complex operation and poor stability. The synchronous display in a wired manner can overcome the above-described problems, but lacks a general solution.
The noun explains:
the method comprises the following steps of (1) one screen: in this specification, it is only referred to that different electronic apparatuses display the same display screen image.
And iOS: refers to an operating system for a mobile electronic device, developed by Apple Inc.
iOS USB mirrorring protocol: is a module of the iOS, which is used for transmitting the image signal of the audio and video.
MFi: the acronym "Made for iPhone/iPod/iPad" in english is a license identifier for the use of an external accessory to its product by Apple Inc (Apple Inc.) in the united states.
SPI Flash: acronym for Serial Peripheral Interface Flash (Serial Peripheral Interface Flash).
USB: the acronym of Universal Serial Bus (usb) refers to an external Bus standard for standardizing the connection and communication between a computer and external devices.
Disclosure of Invention
The invention provides a USB wired same-screen system, which aims to solve the problem that synchronous display of mobile equipment and large-screen equipment of the existing mobile electronic equipment is not convenient enough.
In order to solve the technical problems, the technical scheme of the invention is as follows: a USB wired screen system comprises a mobile device 100 with a display screen, a fixed device 200 with a display screen and a USB connecting line for connecting the mobile device 100 and the fixed device 200, wherein the mobile device 100 comprises a first main circuit board 110 provided with a first connector 111 and a first human-computer interaction device 120 electrically connected with the first main circuit board 100, the fixed device 200 comprises a second main circuit board 210 provided with a second connector 211 and a second human-computer interaction device 220 electrically connected with the second main circuit board 200, and the USB wired screen system is characterized in that: the first main circuit board 110 includes a first signal processing module 112 for transmitting an audio/video signal of the mobile device 100; the USB connection line includes a first connection terminal 310 for connecting the first connector 111, a second connection terminal 320 for connecting the second connector 211, a connection terminal signal processing module 330 for converting audio/video signals of the mobile device 100, and a connection line 340; one end of the connection terminal signal processing module 330 is electrically connected to the second connection terminal 320, and the other end is electrically connected to the first connection terminal 310 through the connection line 340; the second main circuit board 210 includes a second signal processing module 212 for receiving and controlling the converted audio/video signals of the mobile device 100.
Further, the first connector 111 is a USB Type-A connector, a Micro USB connector, a USB Type-C connector or a Lightning connector, and the second connector 211 is a USB Type-A connector.
Further, the connection terminal signal processing module 330 includes a third main circuit board 331 electrically connected to the second connection terminal 320 and the connection line 340; the third main circuit board 331 is provided with a signal processing chip 332 and an SPI Flash memory chip 333, and the SPI Flash memory chip 333 is electrically connected with the signal processing chip 332. Still further, the connection terminal signal processing module 330 and the second connection terminal 320 are integrally packaged. Still further, the mobile device 100 is a mobile device loaded with an iOS operating system, and the first signal processing module 112 is an iOS USB forwarding protocol module; further, an MFi authentication chip 334 electrically connected to the signal processing chip 332 is mounted on the third main circuit board 331.
Further, the first signal processing module 112 intercepts the image of the display screen of the mobile device 100 and encodes each frame of the image, the connection terminal signal processing module 330 receives the image and converts the image to generate a video stream in h.264 format, and the second signal processing module 212 receives the video stream and controls the playing of the video stream. Still further, the second main circuit board 212 receives a control signal of the second human-computer interaction device 220, and the control signal is transmitted to the first main circuit board 110 through the second connector 211, the USB connection line, and the first connector 111 in sequence.
Compared with the prior art, the USB wired same-screen system provided by the invention adopts the first signal processing module 112 arranged on the mobile device 100 to collect the audio and video signals of the mobile device 100, adopts the USB data line connected with the connecting terminal signal processing module 330 in series to convert the signals, and adopts the second signal processing module 212 arranged on the fixed device 200 to receive and control the playing of the signals, so that the wired synchronization from the small-screen display to the large-screen display of the mobile device is stably realized, and the input efficiency of mobile office and the operation experience during game playing are improved. The same-screen system is simple in structure, low in cost, convenient to use and high in universality.
Drawings
FIG. 1 is a schematic composition diagram of an embodiment of the present invention;
FIG. 2 is a diagram of a USB cable according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the second connection terminal and the connection terminal signal processing module in the USB connection line according to the embodiment of the present invention
In the figure:
100-mobile equipment, 110-first main circuit board, 111-first connector, 112-first signal processing module, 120-first human-computer interaction device, 200-fixed equipment, 210-second main circuit board, 211-second connector, 212-second signal processing module, 220-second human-computer interaction device, 310-first connection terminal, 320-second connection terminal, 330-connection terminal signal processing module, 331-third main circuit board, 332-signal processing chip, 333-SPI Flash memory chip, 334-MFi authentication chip and 340-connection line.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
An embodiment of the present invention as shown in fig. 1 comprises a mobile device 100 having a display screen, a fixed device 200 having a display screen, and a USB connection line connecting the mobile device 100 and the fixed device 200, wherein the mobile device 100 comprises a first main circuit board 110 mounted with a first connector 111 and a first human-computer interaction device 120 electrically connected with the first main circuit board 100, the fixed device 200 comprises a second main circuit board 210 mounted with a second connector 211 and a second human-computer interaction device 220 electrically connected with the second main circuit board 200; the first main circuit board 110 includes a first signal processing module 112 for transmitting an audio video signal of the mobile device 100; the USB connection line includes a first connection terminal 310 for connecting the first connector 111, a second connection terminal 320 for connecting the second connector 211, a connection terminal signal processing module 330 for converting audio/video signals of the mobile device 100, and a connection line 340; one end of the connection terminal signal processing module 330 is electrically connected to the second connection terminal 320, and the other end is electrically connected to the first connection terminal 310 through a connection line 340; the second main circuit board 210 includes a second signal processing module 212 for receiving and controlling the playing of the converted audio video signal of the mobile device 100.
Specifically, the first signal processing module 112 is stored in the first main circuit board 110 in software, the second signal processing module 212 is stored in the second main circuit board 210 in software, and the second signal processing module 212 is a player that outputs a video signal connected to the terminal signal processing module 330.
The audio and video signals of the mobile device 100 are collected by the first signal processing module 112 installed on the mobile device 100, the signals are converted by the USB data line connected with the connecting terminal signal processing module 330 in series, and the signals are received and controlled to be played by the second signal processing module 212 installed on the fixed device 200, so that the small-screen display of the mobile device is stably synchronized to the large-screen display, the input efficiency of mobile office work and the operation experience during game playing are improved, no time delay exists, the operation is stable, and high-definition video can be output. The embodiment has the advantages of simple structure, lower cost, convenient use and strong universality.
In this embodiment, the first connector 111 is a USB Type-A connector, a Micro USB connector, a USB Type-C connector or a Lightning connector, and the second connector 211 is a USB Type-A connector. Specifically, the mobile device 100 may be various mobile phones, tablet computers, PCs, and the fixed device 200 may be a tv set having a USB Type-a interface, a projector, a PC, a display, a tv box connected with a tv set, or the like.
In this embodiment, the connection terminal signal processing module 330 includes a third main circuit board 331 electrically connected to the second connection terminal 320 and the connection line 340; the third main circuit board 331 is provided with a signal processing chip 332 and an SPI Flash memory chip 333, and the SPI Flash memory chip is electrically connected with the signal processing chip 332. The third circuit board 331 provided with the signal processing chip 332 and the SPI Flash memory chip 333 is used to transmit and process the video display signal of the mobile device 100 and display it on the display screen of the stationary device 200.
In this embodiment, the connection terminal signal processing module 330 and the second connection terminal 320 are integrally packaged. The integral encapsulation of the connection terminal signal processing module 330 and the second connection terminal 320 is adopted, so that the USB connection line has signal transmission and processing capabilities, and is simple in structure and convenient to use.
In this embodiment, the mobile device 100 is a mobile device loaded with an iOS operating system, and the first signal processing module 112 is an iOS USB forwarding protocol module. The USB mirroring protocol module is part of the iOS operating system. An iOS USB migration protocol module is used as the first signal processing module 112, so that the mobile device loaded with the iOS operating system can synchronously display on a large screen.
In this embodiment, the MFi authentication chip 334 electrically connected to the signal processing chip 332 is mounted on the third main circuit board 331. By providing the USB data line of the MFi authentication chip, it is possible to realize that the external device of the fixed device 200 having a large screen controls the mobile device loaded with the iOS operating system, i.e., the mobile device 100 loaded with the iOS operating system shares the external devices of the fixed device 200, such as a keyboard and a mouse.
In this embodiment, the first signal processing module 112 intercepts the image of the display screen of the mobile device 100 and encodes each frame of said image; the connection terminal signal processing module 330 receives the image and converts the image to generate a video stream in an H.264 format; the second signal processing module 212 receives the video stream and controls playing of the video stream. Through the first signal processing module 112 arranged in the mobile device, the terminal signal processing module 330 connected to the USB cable in series, and the second signal processing module 212 arranged in the fixed device 200, the small screen display of the mobile device can be synchronized to the large screen display, and the mobile device has stable performance and strong universality.
In this embodiment, the second main circuit board 212 receives a control signal of the second human-computer interaction device 220, and the control signal is transmitted to the first main circuit board 110 through the second connector 211, the USB connection line, and the first connector 111 in sequence. This embodiment can also realize that the external device of the fixed device 200 with a large screen controls the mobile device while realizing wired synchronization of the small screen display of the mobile device 100 to the large screen display, i.e. the external device of the fixed device 200, such as a keyboard and a mouse, shared by the mobile device 100.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (3)
1. The utility model provides a wired with screen system of USB, includes mobile device (100) that has the display screen, has the fixed equipment (200) of display screen and connects mobile device (100) with the USB connecting wire of fixed equipment (200), mobile device (100) including install first main circuit board (110) of first connector (111) and with first main circuit board (110) electric connection's first human-computer interaction device (120), fixed device (200) including install second main circuit board (210) of second connector (211) and with second main circuit board (210) electric connection's second human-computer interaction device (220), characterized by:
the first main circuit board (110) comprises a first signal processing module (112) for transmitting audio-video signals of the mobile device (100);
the USB connecting line comprises a first connecting terminal (310) for connecting the first connector (111), a second connecting terminal (320) for connecting the second connector (211), a connecting terminal signal processing module (330) for converting audio and video signals of the mobile device (100), and a connecting line (340); one end of the connection terminal signal processing module (330) is electrically connected to the second connection terminal (320), and the other end is electrically connected to the first connection terminal (310) through the connection line (340);
the second main circuit board (210) comprises a second signal processing module (212) for receiving and controlling the playing of the converted audio and video signals of the mobile device (100), the second main circuit board (212) receives a control signal of the second human-computer interaction device (220), and the control signal is transmitted to the first main circuit board (110) through the second connector (211), the USB connecting line and the first connector (111) in sequence;
the connecting terminal signal processing module (330) comprises a third main circuit board (331) electrically connected with the second connecting terminal (320) and the connecting line (340); the third main circuit board (331) is provided with a signal processing chip (332) and an SPI Flash memory chip (333), and the SPI Flash memory chip (333) is electrically connected with the signal processing chip (332);
-said first signal processing module (112) intercepts an image of the display screen of the mobile device (100) and encodes each frame of said image; the connection terminal signal processing module (330) receives the image and converts the image to generate a video stream in an H.264 format; the second signal processing module (212) receives the video stream and controls the video stream to be played on a display screen of the fixed equipment (200);
the mobile equipment (100) is a mobile equipment loaded with an iOS operating system, and the first signal processing module (112) is an iOS USB forwarding protocol module; and an MFi authentication chip (334) electrically connected with the signal processing chip (332) is mounted on the third main circuit board (331), so that the mobile device (100) loaded with an iOS operating system is controlled by external equipment of the fixed device (200) with a large screen.
2. The USB wired on-screen system according to claim 1, wherein: the first connector (111) is a USBType-A connector, a MicroUSB connector, a USBType-C connector or a Lightning connector, and the second connector (211) is a USBType-A connector.
3. The USB wired on-screen system according to claim 1, wherein: the connection terminal signal processing module (330) and the second connection terminal (320) are integrally packaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479066.1A CN108710481B (en) | 2018-05-17 | 2018-05-17 | USB wired co-screen system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479066.1A CN108710481B (en) | 2018-05-17 | 2018-05-17 | USB wired co-screen system |
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| CN108710481A CN108710481A (en) | 2018-10-26 |
| CN108710481B true CN108710481B (en) | 2022-02-08 |
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| CN201810479066.1A Active CN108710481B (en) | 2018-05-17 | 2018-05-17 | USB wired co-screen system |
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Address after: 403-5, Runji Building, Building 1, Building 71, Xingdong Community, Xin'an Street, Bao'an District, Shenzhen, Guangdong Province, 518133 Patentee after: Shenzhen Univision Technology Co.,Ltd. Address before: 518052 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: SHENZHEN BAISHANG TECHNOLOGY Co.,Ltd. |