CN102638724A - Transmitting device, receiving device, screen picture transmission system and readable medium - Google Patents

Abstract

The invention provides a sending device, a receiving device, a screen picture transmission system and a readable medium. The screen picture transmission system comprises a receiving device and a sending device. The receiving device comprises a display unit or an external display device and is used for displaying a two-dimensional bar code comprising connection information. The sending device comprises an image capturing unit for capturing the image of the two-dimensional bar code. The sending device can decode the two-dimensional bar code to obtain the connection information, and establishes a communication connection with the receiving device by the connection information to transmit the screen picture, thereby simplifying the operation procedure of a user.

Description

Sending device, receiving device, screen image transmission system, readable media

technical field

The present invention relates to a sending device, a receiving device, and a screen image transmission system, in particular to a sending device, a receiving device, and a screen image transmission system that allow users to establish a communication connection more easily.

Background technique

Sharing screen images is one of the important applications of information technology, such as using a remote desktop for remote control, or connecting a computer with a projector through wireless communication for presentations, etc. In addition, with the popularity of portable devices with camera and video functions and the size limitation of their display units, users' demands for sharing captured images are increasing rapidly.

However, before transmitting the screen image, the user must first set up the connection information correctly, so that the sending end and the receiving end can establish a communication connection. For example, the user needs to know the correct IP address of the receiving device, and then input it into the sending device, so that the sending device can establish a communication connection with the receiving device. This is quite difficult for users who are not familiar with computer operations.

To sum up, how to allow the user to establish a communication connection and transmit screen images between the sending end and the receiving end through simple operations is a goal that needs to be worked hard at present.

Contents of the invention

The present invention provides a sending device, a receiving device, and a screen image transmission system. The receiving end converts the connection information into a two-dimensional barcode, so that the sending end can obtain the required connection by capturing the image of the two-dimensional barcode. information, and then establish a communication connection and transmit screen images, thereby simplifying the user's operating procedures.

A screen frame transmission system according to an embodiment of the present invention includes a receiving device and a sending device. The receiving device includes a display unit or a video connection port, a first communication interface and a first processing unit. The video connection port is used for electrical connection with an external display device. The display unit or display device is used for displaying a two-dimensional barcode including connection information. The first communication interface is used for receiving a screen image. The first processing unit is electrically connected with the first communication interface and the display unit or video connection port, and is used for generating two-dimensional barcodes and decoding screen images for output by the display unit or display device. The sending device includes an image capture unit, a second communication interface and a second processing unit. The image capturing unit is used for capturing the 2D barcode output by the display unit or the display device. The second communication interface is used for transmitting screen images. The second processing unit is electrically connected with the image capture unit and the second communication interface, and is used for decoding the two-dimensional barcode to obtain connection information, and establishes a communication connection with the receiving device to transmit screen images by using the connection information.

A sending device according to an embodiment of the present invention is used to form a screen image transmission system with a receiving device. The sending device includes an image capture unit, a communication interface and a processing unit. The image capturing unit is used for capturing the two-dimensional barcode displayed by the receiving device, which includes a connection information. The communication interface is used to transmit the screen image to the receiving device. The processing unit is electrically connected with the image capture unit and the communication interface, and is used for decoding the two-dimensional barcode to obtain connection information, and establishes a communication connection with the receiving device using the connection information to transmit the screen image.

A receiving device according to an embodiment of the present invention is used to form a screen image transmission system with a sending device. The receiving device includes a display unit or a video connection port, a communication interface and a processing unit. The video connection port is used for electrical connection with an external display device. The display unit or display device is used to display a two-dimensional barcode, which includes connection information. The communication interface is used for receiving a screen image transmitted by the sending device. The processing unit is electrically connected with the communication interface and the display unit or the video connection port for generating two-dimensional barcodes and decoding screen images for output by the display unit or display device.

A computer-readable medium according to an embodiment of the present invention records a computer program for a sending device to load to execute a method for transmitting screen images to a receiving device. The method includes using an image capture unit to capture a two-dimensional barcode displayed by the receiving device, which includes connection information; decoding the two-dimensional barcode to obtain the connection information; using the connection information to establish a communication connection with the receiving device; and capture and send screen shots.

A computer-readable medium according to an embodiment of the present invention records a computer program for a receiving device to load to execute a method for receiving a screen image transmitted by a sending device. The method includes determining a connection information; converting the connection information into a two-dimensional barcode; outputting the two-dimensional barcode by a display unit or an external display device for the sending device to retrieve the two-dimensional barcode; Send the screen image and output it.

The sending device, receiving device, and screen image transmission system of the present invention convert the connection information of the receiving end into a two-dimensional barcode, and output it with a display unit or an external display device, so that the sending end can capture the two-dimensional barcode The image decoding of the barcode obtains the required connection information, and then establishes the communication connection and transmits the screen image. Therefore, through the present invention, the user can establish a communication connection between the sending end and the receiving end and share screen images with a simple operation procedure.

Description of drawings

FIG. 1 is a block diagram showing a screen image transmission system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a screen image transmission method according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a method for receiving a screen image transmitted by a transmitting device performed by a receiving device according to an embodiment of the present invention.

FIG. 4 is a flowchart showing a method for transmitting a screen image to a receiving device performed by a sending device according to an embodiment of the present invention.

Drawing No.:

10 screen image transmission system

11a, 11b Receiver

111a Display unit

111b Display device

112 The first communication interface

113 The first processing unit

114 video connection ports

12 Sending device

121 image capture unit

122 Second communication interface

123 Second processing unit

C 2D barcode

S21～S25 screen image transmission method

S31～S36 The method of receiving the screen image at the receiving end

S41～S47 The method of sending the screen image by the sender

Detailed ways

In the following, specific embodiments will be described in detail in conjunction with the attached drawings, and it will be easier to understand the purpose, technical content, features and effects of the present invention.

Please refer to FIG. 1 , a screen image transmission system 10 according to an embodiment of the present invention includes a receiving device 11 a and a sending device 12 . The receiving device 11 a includes a display unit 111 a , a first communication interface 112 and a first processing unit 113 . Wherein, the first processing unit 113 is electrically connected to the display unit 111a, and converts the connection information required by the sending device 12 into a two-dimensional barcode C for output on the display unit 111a. For example, the two-dimensional barcode C can be a quick response code (QuickResponse code, QR code). In addition, the first processing unit 113 is also electrically connected to the first communication interface 112 , and receives the screen image transmitted by the sending device 12 through the first communication interface 112 and outputs it on the display unit 111 a.

The sending device 12 includes an image capture unit 121 , a second communication interface 122 and a second processing unit 123 , which are electrically connected to the image capture unit 121 and the second communication interface 122 . The second processing unit 123 can use the image capture unit 121 to capture the 2D barcode C output by the display unit 111a of the receiving device 11a, and decode it to obtain connection information required for establishing a communication connection with the receiving device 11a. According to the connection information obtained by decoding the two-dimensional barcode C, the second processing unit 123 can establish a communication connection with the receiving device 11 a and transmit a screen image. Those skilled in the technical field of the present invention can use existing technologies to realize methods for capturing and transmitting screen images, and details are not repeated here.

In one embodiment, the first communication interface 112 and the second communication interface 122 can be a wireless area network interface, such as IEEE 802.11 communication standard. The sending device 12 can use the IP address (Internet Protocol address) to establish a communication connection with the receiving device 11a. For example, the receiving device 11a can be a display device with a network interface, such as a monitor, television, projector, tablet computer, etc.; the sending device 12 can be a portable electronic device with an image capture unit and a network interface, such as a mobile phone, Personal Digital Assistants (PDAs), Tablets, Laptops, Desktops, etc.

In another embodiment, the receiving device only includes the first communication interface 112 , the first processing unit 113 and a video connection port 114 , but does not include the display unit 111 a, such as the receiving device 11 b shown in FIG. 1 . The receiving device 11b can be electrically connected to an external display device 111b via the video connection port 114 . In this way, the receiving device 11b can use the external display device 111b to output the two-dimensional barcode C including the connection information. Through the above structure, the display device 111b lacking a network interface can also be used as a receiving end for sharing screen images. For example, the video connection port 114 can be a Video Graphics Array (Video Graphics Array, VGA) terminal, a Digital Visual Interface (Digital Visual Interface, DVI), a High Definition Multimedia Interface (High Definition Multimedia Interface, HDMI), a component terminal (Component Video Connector), S-terminal (S-Video) or AV terminal (composite terminal, Composite video connector), etc.

Please refer to FIG. 2 to illustrate the operation flow of the screen image transmission system 10 of the present invention. First, the receiving end (such as the receiving device 11a, 11b) uses the display unit 111a or the external display device 111b to output a two-dimensional barcode C (S21). Next, the sending end (such as the sending device 12 ) uses the image capture unit 121 to capture the image of the 2D barcode C, and decodes the 2D barcode C to obtain the required connection information ( S22 ). The sending end establishes a communication connection with the receiving end according to the connection information obtained by decoding the two-dimensional barcode C (S23). After that, the sending end can capture the screen image and send it to the receiving end (S24). The receiving end receives the screen image transmitted by the sending end and outputs it (S25).

Referring to FIG. 3 , the operation flow of the receiving end will be described below. First, the receiving device first determines a connection information (S31). For example, the receiving device can set an IP address in advance or obtain an IP address through a Dynamic Host Configuration Protocol (DHCP). In one embodiment, the receiving device can be an access point (access point, AP) of a wireless area network, therefore, the connection information also includes a service set identifier (SSID) of the access point. For security, the connection information may further include a connection password of the access point. In addition, the receiving device can generate an identification code in a random number manner. The sending device needs to correctly input the identification code generated by the receiving device to use the display unit 111a or the display device 111b at the receiving end to output the transmitted screen image.

Next, the receiving device converts the required connection information into a two-dimensional barcode C, such as a QR code, according to the user's network settings (S32), and outputs it through the display unit 111a or the display device 111b (S33). Afterwards, the receiving device waits to receive the screen image transmitted by the sending device (S34), and determines whether the screen image is received (S35). If yes, the receiving device outputs the screen image through the display unit 111a or the display device 111b (S36); if not, returns to step S34 to wait for receiving the screen image transmitted by the sending device.

Referring to FIG. 4 , the operation flow of the sending end will be described below. First, the sending device 12 uses the image capturing unit 121 to capture the image of the two-dimensional barcode C displayed on the receiving end ( S41 ). Next, decode the two-dimensional barcode C according to the captured image to obtain connection information (S43) required to establish a communication connection with the receiving end, such as IP address, SSID, connection password or identification code, etc. Preferably, before decoding the two-dimensional barcode, it may be determined whether the captured image is clear or complete and can be decoded (S42). If yes, decode the two-dimensional barcode (S43); if not, return to step S41 to recapture the image of the two-dimensional barcode C.

Continuing with the above description, after the sending device 12 obtains the connection information, it can establish a communication connection with the receiving end according to the connection information (S44). For example, the sending device 12 can use the IP address to establish a communication connection with the receiving end. Alternatively, the sending device 12 first establishes a communication connection with the access point according to the SSID and the connection password, and then establishes a communication connection with the receiving device according to the IP address. If the receiving end has set the identification code, the sending device 12 needs to input the identification code in the two-dimensional barcode C (S45) to obtain permission to use the display unit 111a or the display device 111b of the receiving end. Afterwards, the sending device 12 can capture the screen image and send it to the receiving end (S46). Finally, it is judged whether the user has finished the operation of transmitting the screen image (S47), if yes, then end; if not, then return to step S46, continue to capture the screen image and send it to the receiving end.

In one embodiment, a computer-readable medium according to an embodiment of the present invention records a computer program, which can be loaded by a sending device to execute a method for transmitting screen images to a receiving device. The steps of the method for transmitting the screen image by the sending device are shown in FIG. 4 , and will not be repeated here. A computer-readable medium according to another embodiment of the present invention records a computer program, which can be loaded by a receiving device to execute a method for receiving a screen image transmitted by a sending device. The steps of the method for receiving screen images are shown in FIG. 3 and will not be repeated here.

To sum up the above, the sending device, receiving device, screen image transmission system and method of the present invention convert the connection information of the receiving end into a two-dimensional barcode, and output it with a display unit or an external display device, so that the sending end can Obtain the required connection information by capturing the image decoding of the two-dimensional barcode, and then establish a communication connection and transmit the screen image. Therefore, through the present invention, the user can establish a communication connection between the sending end and the receiving end and share screen images with a simple operation procedure.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. When it is impossible to limit the patent scope of the present invention, that is, All equivalent changes or modifications made according to the spirit disclosed in the present invention should still fall within the protection scope of the claims of the present invention.

Claims (26)

1. a screen picture transmission system is characterized in that, said screen picture transmission system comprises:

One receiving system, it comprises:

The video interface of one display unit or in order to be electrically connected with an external display unit, wherein said display unit or said display unit are in order to show a two-dimensional bar code, it comprises a link information;

One first communication interface is in order to receive a screen picture; And

One first processing unit, it is electrically connected with said first communication interface and said display unit or said the video interface, in order to produce said two-dimensional bar code and the said screen picture of decoding for said display unit or the output of said display unit; And

One dispensing device, it comprises:

One image acquisition unit, it is in order to capture the said two-dimensional bar code that said display unit or said display unit are exported;

One second communication interface is in order to transmit said screen picture; And

One second processing unit; It is electrically connected with said image acquisition unit and said second communication interface; Obtaining said link information, and set up communication connection to transmit said screen picture in order to the said two-dimensional bar code of decoding with said link information and said receiving system.

2. screen picture transmission system as claimed in claim 1 is characterized in that, said two-dimensional bar code comprises a fast reaction sign indicating number.

3. screen picture transmission system as claimed in claim 1 is characterized in that, said first communication interface and said second communication interface comprise a radio area network interface.

4. screen picture transmission system as claimed in claim 3 is characterized in that, said link information comprises an IP address.

5. screen picture transmission system as claimed in claim 4 is characterized in that, said link information more comprise a service setting identifier, a line password and an identification code at least one of them.

6. a dispensing device is characterized in that, itself and a receiving system are formed a screen picture transmission system, and said receiving system demonstration comprises the screen picture that a two-dimensional bar code and a said dispensing device of a link information transmitted, and said dispensing device comprises:

One image acquisition unit, it is in order to capture said two-dimensional bar code;

One communication interface is in order to transmit said screen picture to said receiving system; And

One processing unit, it is electrically connected with said image acquisition unit and said communication interface, obtaining said link information, and sets up communication connection to transmit said screen picture with said link information and said receiving system in order to the said two-dimensional bar code of decoding.

7. dispensing device as claimed in claim 6 is characterized in that, said two-dimensional bar code comprises a fast reaction sign indicating number.

8. dispensing device as claimed in claim 6 is characterized in that, said second communication interface comprises a radio area network interface.

9. dispensing device as claimed in claim 8 is characterized in that, said link information comprises an IP address.

10. dispensing device as claimed in claim 9 is characterized in that, said link information more comprise a service setting identifier, a line password and an identification code at least one of them.

11. receiving system; It is characterized in that; Itself and a dispensing device are formed a screen picture transmission system; The acquisition of said dispensing device and the two-dimensional bar code of decoding to be obtaining a link information, and set up communication connection to transmit a screen picture with said link information and said receiving system, and said receiving system comprises:

The video interface of one display unit or in order to be electrically connected with an external display unit, wherein said display unit or said display unit are in order to show said two-dimensional bar code, it comprises said link information;

One communication interface is in order to receive said screen picture; And

One processing unit, it is electrically connected with said communication interface and said display unit or said the video interface, in order to produce said two-dimensional bar code and the said screen picture of decoding for said display unit or the output of said display unit.

12. receiving system as claimed in claim 11 is characterized in that, said two-dimensional bar code comprises a fast reaction sign indicating number.

13. receiving system as claimed in claim 11 is characterized in that, said communication interface comprises a radio area network interface.

14. receiving system as claimed in claim 13 is characterized in that, said link information comprises an IP address.

15. receiving system as claimed in claim 14 is characterized in that, said link information more comprise a service setting identifier, a line password and an identification code at least one of them.

16. the medium of an embodied on computer readable is characterized in that, it writes down a computer program, and said computer program supplies a dispensing device to be written into a method that transmits screen picture to a receiving system to carry out, and it comprises:

Capture the two-dimensional bar code that said receiving system is shown with an image acquisition unit, it comprises a link information;

Decode said two-dimensional bar code to obtain said link information;

Set up a communication connection with said link information and said receiving system; And

Acquisition also transmits said screen picture.

17. the medium of embodied on computer readable as claimed in claim 16 is characterized in that, the medium of said embodied on computer readable more comprise:

Judge that whether the image of the said two-dimensional bar code that is captured can decode, and if not, then captures said two-dimensional bar code again.

18. the medium of embodied on computer readable as claimed in claim 16 is characterized in that, said two-dimensional bar code comprises a fast reaction sign indicating number.

19. the medium of embodied on computer readable as claimed in claim 16 is characterized in that, said dispensing device is to set up said communication connection with a radio area network interface and said receiving system.

20. the medium of embodied on computer readable as claimed in claim 19 is characterized in that, said link information comprises an IP address.

21. the medium of embodied on computer readable as claimed in claim 20 is characterized in that, said link information more comprise a service setting identifier, a line password and an identification code at least one of them.

22. the medium of an embodied on computer readable is characterized in that, it writes down a computer program, and said computer program supplies a receiving system to be written into to carry out and receives the method that a dispensing device is transmitted the screen picture, and it comprises:

Determine a link information;

Convert said link information into a two-dimensional bar code;

Export said two-dimensional bar code with a display unit or an external display unit, capture said two-dimensional bar code for said dispensing device; And

Wait for that receiving the said screen picture that said dispensing device transmitted also exports.

23. the medium of embodied on computer readable as claimed in claim 22 is characterized in that, said two-dimensional bar code comprises a fast reaction sign indicating number.

24. the medium of embodied on computer readable as claimed in claim 22 is characterized in that, said dispensing device is to set up a communication connection with a radio area network interface and said receiving system.

25. the medium of embodied on computer readable as claimed in claim 24 is characterized in that, said link information comprises an IP address.

26. the medium of embodied on computer readable as claimed in claim 25 is characterized in that, said link information more comprise a service setting identifier, a line password and an identification code at least one of them.

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