CN115599326A - Information co-screen method, sending end, receiving end and computer readable storage medium - Google Patents
Information co-screen method, sending end, receiving end and computer readable storage medium Download PDFInfo
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- 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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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The embodiment of the invention discloses an information co-screen method, a sending end, a receiving end and a computer readable storage medium, wherein the information co-screen method comprises the following steps: a sending end obtains image information of a target layer where target display information is located; and sending the image information to the receiving end so that the receiving end displays the image information on the display end. The sending end of the embodiment of the invention sends the image information to the corresponding receiving end by acquiring the image information of the target layer where the target display information is located, thereby realizing the same-screen display of the target display information. Different from the prior art that the screen picture is obtained by directly adopting the system native screen capture function by using a mobile phone terminal, the embodiment of the invention directly obtains the image information from the corresponding layer of the target display information needing the same screen, can accurately obtain the image information needing the same screen on the same screen, avoids data on the layer irrelevant to the same screen, and effectively protects the personal privacy of the user.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an information same-screen method, a sending end, a receiving end and a computer readable storage medium.
Background
In the modern society, with the popularization and increasingly powerful functions of intelligent mobile terminals (such as mobile phones, tablet computers and the like), people have increasingly strengthened dependence on the intelligent mobile terminals in life. Smartphones and tablets have become indispensable devices for work, life and entertainment. However, due to the limitation of the sizes of the mobile phone and the tablet screen, multimedia resources and the like cannot obtain good watching effects on the mobile phone and the tablet, so that the life and the work of people are influenced to a certain extent. In contrast, equivalent screen technologies such as Miracast (mirroring technology) and airplay (airplay technology) are released in the existing market, and a mobile phone or a flat screen is synchronized to a large-screen smart device.
The technologies can meet most use scenes of common users, but people are very sensitive to private information at present, and the same-screen technology can display a mobile phone or a flat screen on a large-screen device without reservation, so that personal information of the users is completely exposed to the public. Especially, in a scene of organizing a conference and researching a scheme document, the same-screen technology can display all message reminders of a mobile phone or a tablet of a user on a large screen, for example, personal privacy information such as a mobile phone message popup box and a new message reminder is displayed on the large screen, and the method is extremely unfriendly to personal privacy protection.
Disclosure of Invention
The embodiment of the invention provides an information on-screen method, a sending end, a receiving end and a computer readable storage medium, which can accurately display image information needing on-screen on the same screen and effectively protect the personal privacy of a user.
In a first aspect, an embodiment of the present invention provides an information on-screen method, which is applied to a sending end, and the information on-screen method includes:
acquiring image information of a target layer where target display information is located;
and sending the image information to a receiving end so that the receiving end displays the image information on a display end.
In a second aspect, an embodiment of the present invention provides an information on-screen method, which is applied to a receiving end, and the information on-screen method includes:
receiving image information from a sending end, wherein the image information is image information of a target layer where target display information in the sending end is located;
and displaying the image information on a display end.
In a third aspect, an embodiment of the present invention provides a sending end, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the information on-screen method according to the first aspect of the invention when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a receiving end, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the information on-screen method according to the second aspect of the invention when executing the computer program.
In a fifth aspect, the embodiment of the present invention provides a computer-readable storage medium, which stores computer-executable instructions for performing the information on-screen method as described above.
The embodiment of the invention comprises the following steps: the sending end of the embodiment of the invention sends the image information to the corresponding receiving end by acquiring the image information of the target layer where the target display information is located, thereby realizing the same-screen display of the target display information. Different from the prior art that the screen picture is obtained by directly adopting the system native screen capture function by using a mobile phone terminal, the embodiment of the invention directly obtains the image information from the corresponding layer of the target display information needing the same screen, can accurately obtain the data needing the same screen on the same screen, avoids the image information on the layer irrelevant to the same screen, and effectively protects the personal privacy of the user.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an information on-screen system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an information co-screen method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of an information co-screen method according to another embodiment of the present invention;
fig. 4 is a schematic flowchart of an information on-screen method according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to another embodiment of the present invention;
fig. 7 is a schematic flowchart of an information on-screen method according to another embodiment of the present invention;
fig. 8 is a schematic diagram of a distribution network flow according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a one-screen preparation process provided by an embodiment of the present invention;
FIG. 10 is a schematic diagram of a process for on-screen encoding according to an embodiment of the present invention;
fig. 11 is a schematic diagram of an on-screen decoding process according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart. The terms "first," "second," and the like in the description, in the claims, or in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Referring to fig. 1 to 3, an embodiment of the present invention provides an information on-screen system, and as shown in fig. 1, the system includes a sending end and a receiving end, where the sending end includes, but is not limited to, a mobile phone, a computer, a tablet computer, a television, and other devices with a screen projection function; the receiving end includes, but is not limited to, a screen projection box, a projector, a television and other devices with a screen projection function.
For convenience of description, in this embodiment, a sending end uses a mobile phone as an example, and a receiving end uses a screen projection box as an example. The process of matching the mobile phone with the screen projection box is as follows: firstly, a screen projection box cannot independently operate to Access a network, and needs to be distributed with the help of a mobile phone, so that the screen projection box generates a two-dimensional code comprising information such as a Bluetooth name, a Media Access Control (MAC) address and the like; then, a screen projection APP (Application) on the mobile phone obtains information contained in the code by scanning the two-dimensional code, and Bluetooth pairing of the two codes is realized; then, the screen-casting APP sends the SSID (Service Set Identifier) and the password of wifi (Wireless Fidelity) to the screen-casting box, and the screen-casting box realizes the connection between the two local area networks according to the received SSID and password of wifi.
Referring to fig. 2, the present system performs an information on-screen method, which includes the steps of:
step S100, the sending end obtains image information of a target layer where the target display information is located.
In step S100, the target display information refers to information that is required to be displayed on the same screen with the screen projection box on the mobile phone. Notably, the target presentation information includes one of: the mobile phone comprises document information, picture information or video information, wherein the document information comprises word documents executed by the mobile phone, the picture information comprises pictures viewed on the mobile phone, and the video information comprises videos played on the mobile phone. If the target display information is a video, the video needs to be displayed on the same screen with the screen projection box, so that a user can see a corresponding picture on a corresponding display through the screen projection box. If the target display information is a word document, the document needs to be displayed on the same screen with the screen projection box, so that a user can see the corresponding document on the corresponding display through the screen projection box.
For example, the photo application and the video application are respectively in different levels, the photo application and the chat software such as the WeChat are respectively in different levels, and the QQ chat software is respectively in different levels, which is known in the prior art and will not be described in detail herein. Therefore, the target layer where the target display information is located refers to a layer where the target display information is needed to be located on the mobile phone. The image information refers to bitmap (raster map or dot matrix map) data, the acquired image information is also called screenshot, and in order to realize screen projection, the image information needs to be acquired first, and then the acquired image information is sent to a receiving end, so that the receiving end can realize same-screen playing.
In the embodiment, the sending end collects the image information at a set frequency, preferably at a frequency of 20 times per second, so as to maintain the definition of the collected image information and ensure the screen projection effect of the image. In this step, the process of the sending end to obtain the image information is, for example: and (3) setting a thread task by a screen projection APP on the same screen word document and the mobile phone, and controlling an API (application program interface) tool at the bottom end of the mobile phone through the thread task to finish acquisition of image information corresponding to an image layer occupied by the photo application at a frequency of 20 times per second.
And step S200, the sending end sends the image information to the receiving end so that the receiving end displays the image information on the display end.
In step S200, when the receiving end is a screen projection box, since the screen projection box does not have a display function, the display end refers to a display connected to the screen projection box. When the receiving end is a projector, the display end refers to a projection module on the projector.
It should be noted that the mobile phone encodes and encapsulates the image information and then sends the encoded image information to the receiving end. For example: and the sending end performs H264 coding on the image information and encapsulates the image information according to a self-defined data format to obtain encapsulated data. It should be noted that the H264 coding and the custom encapsulation performed by the transmitting end are well known to those skilled in the art, and will not be described in detail herein. After the screen projection box receives the data, the screen projection box can be unpacked and decoded to obtain image information, the image information is rendered, the rendered image information is sent to a rendering area of the screen projection box, the screen projection box is connected with a display at the moment, the data of the rendering area are directly transmitted to the display, and the display is used for displaying.
The embodiment has at least the following beneficial effects:
the image information of the target layer where the target display information is located is obtained, and the image information is sent to the corresponding receiving end, so that the same-screen display of the target display information can be realized. Different from the prior art that the mobile phone terminal is used for directly obtaining the screen picture by using the native screen capturing function of the system, the image information is directly obtained from the corresponding layer of the target display information needing the same screen, the image information needing the same screen can be accurately displayed on the same screen, the image information on the layer irrelevant to the same screen is avoided, and the user privacy can be effectively protected.
It is to be noted that, based on the above embodiment, before the step S100, the method further includes the steps of:
and S101, acquiring target display information and displaying the target display information on a target layer.
And S102, acquiring a same-screen instruction for displaying the target display information on the same screen, and determining a target layer where the target display information is located according to the same-screen instruction.
In step S102, the on-screen instruction may be an instruction sent by the on-screen box or an instruction created by a screen-casting App on the mobile phone, and after the mobile phone obtains the instruction, the target display information that needs to be on-screen and the target layer occupied by the target display information are determined according to the instruction.
Referring to fig. 3, it is noted that, based on the above embodiment, the method further includes the steps of:
step S300, the sending end obtains the non-target display information and displays the non-target display information on the non-target layer.
Notably, the non-target presentation information includes one of: a pop-up message or a reminder message. The pop-up message or the reminding message contains the personal privacy of the mobile phone user, for example: the mobile phone receives a QQ message popup of a WeChat message popup, and the like, if the target display information at the moment is a photo, according to the prior art, the mobile phone end directly uses the native screen capturing function of the system to acquire a screen picture, and information data related to personal privacy, such as the QQ message popup of the WeChat message popup, and the like, are transmitted to a screen projection box, so that the personal privacy is revealed, and the aim of the embodiment is to display the target display information which needs to be displayed on the same screen on a target layer; non-target display information which does not need to be displayed on the same screen is displayed on a non-target layer; therefore, data which needs to be displayed on the same screen can be accurately displayed on the same screen, image information on a layer which is irrelevant to the same screen is avoided, and personal privacy is prevented from being revealed.
It should be noted that, based on the above embodiments, the same local area network is accessed between the sending end and the receiving end, and the communication connection is realized through the TCP protocol. The specific implementation process includes (taking the target display information as word document as an example):
the sending end sends a first request and page parameters to the receiving end, so that the receiving end starts a corresponding same-screen page according to the first request and the page parameters, and the receiving end feeds back a corresponding second request; the page parameters comprise page width and height and resolution;
and the sending end receives the second request, performs on-screen initialization and sends a third request to the receiving end. The three-way handshake process is completed.
In this embodiment, the sending end and the receiving end are connected through a TCP protocol, and a three-way handshake mechanism suggests connection, so that the communication link has the advantages of reliability and stability.
The invention provides an information same-screen system, which comprises a sending end and a receiving end, wherein the sending end comprises but is not limited to equipment with a screen projection function, such as a mobile phone, a computer, a tablet computer, a television and the like; the receiving end includes, but is not limited to, a screen projection box, a projector, a television and other devices with a screen projection function.
Referring to fig. 4, the present system performs an information on-screen method, which includes the steps of:
step S400, the receiving end receives image information from the sending end, wherein the image information is image information of a target layer where target display information in the sending end is located.
Step S500, the receiving end displays the image information on the display end.
It should be noted that the present embodiment and the steps S100 to S200 of the above embodiment are based on the same inventive concept, so that the content of the above embodiment is also applicable to the present embodiment, and is not described herein again.
Referring to fig. 5, an embodiment of the present invention provides a transmitting end, including: a data acquisition unit 100 and a data transmission unit 200, wherein:
the data obtaining unit 100 obtains image information of a target layer where the target display information is located.
The data transmission unit 200 transmits the image information to the receiving end so that the receiving end displays the image information on the display end.
It should be noted that the steps S100 to S200 of the present embodiment and the above method embodiments are based on the same inventive concept, so that the content of the above embodiments is also applicable to the present embodiment, and will not be described again here.
Referring to fig. 6, an embodiment of the present invention provides a receiving end, including: a data receiving unit 300 and an on-screen presentation unit 300, wherein:
the data receiving unit 300 is configured to receive image information from a transmitting end, where the image information is image information of a target layer where target display information in the transmitting end is located.
The on-screen display unit 400 is used for displaying image information on a display terminal.
It should be noted that steps S400 to S500 of the present embodiment and the above method embodiments are based on the same inventive concept, so that the contents of the above embodiments are also applicable to the present embodiment, and are not described herein again.
Referring to fig. 7 to 11, an embodiment of the present invention provides an information on-screen system, including: the method comprises the steps of a same-screen sending end, a sending end APP, a same-screen receiving end, a receiving end APP and a same-screen inter-device link. The system takes document pages as an example.
The same-screen sending end: iOS/Android phone/tablet;
a sending end APP: the system is used for carrying out screenshot on the mobile phone/tablet personal computer, carrying out H264 coding on the screenshot, and then packaging the screenshot into an appointed data format;
receiving end on the same screen: the screen projection box is used for decoding and displaying the Android intelligent system;
receiving end APP: decoding the coded stream and displaying the image on a large screen;
and the link between the devices on the same screen: and the long TCP chain is used for transmitting the data coded by the transmitting end to the receiving end.
Referring to fig. 7, the present system is capable of performing an information on-screen method comprising the steps of:
firstly, the mobile phone and the screen projection box are accessed into the same local area network, and the APPs at two ends are operated.
Secondly, the mobile phone APP finds a screen projection box in the local area network and is connected with the screen projection box.
Thirdly, the mobile phone end opens the document, and clicks the button of the same screen, and the TV end automatically opens the page of the same screen.
Fourthly, the document page of the mobile phone end is displayed on the TV end in the same screen.
Specific examples are as follows:
referring to fig. 8, the process of accessing the mobile phone and the screen projection box to the same lan is as follows:
because the screen projection box has no remote controller and can not independently operate to access the network, the network needs to be distributed by the aid of the mobile phone, and the operation steps are as follows:
1. the screen projection box is connected with a television, is started after being electrified, and generates a two-dimensional code on a home page, wherein the two-dimensional code comprises information such as box Bluetooth names and MAC addresses;
2. opening the 'code scanning' function of the mobile phone APP, and scanning the two-dimension code on the television to obtain information in the two-dimension code;
3. the mobile phone Bluetooth scans the same-name Bluetooth equipment to realize pairing, and transmits the SSID and the password of the WiFi to be connected to the box end through Bluetooth;
4. after receiving the Bluetooth message, the box terminal acquires the SSID and the password for networking;
5. at this point, the mobile phone and the screen projection box have access to the same local area network;
referring to fig. 9, the on-screen function preparation flow is as follows:
the user uses with the screen function, needs click "with the screen" button of cell-phone APP, and cell-phone end APP and box end APP can carry out the preparation work before with the screen this moment, specifically as follows:
1. a user clicks a 'same screen' button of a mobile phone APP;
2. the mobile phone sends a request needing the same screen to the box end APP through a link, and carries data of width, height and resolution of a document display page of the mobile phone end;
3. after receiving the message, the box terminal starts the same-screen page and replies the message to the mobile phone to indicate that the box terminal receives the same-screen message and finishes preparation;
4. the mobile phone end receives the reply of the box end, immediately starts the same-screen initialization and starts the same-screen function;
referring to fig. 10, the encoding process of the mobile phone end on the same screen is as follows:
in order to guarantee the privacy of the user, the same-screen function of the invention can not intercept the information notice of the user, so that the mobile phone end can not directly use the native screen-capturing function of the system to acquire the screen picture, but acquires the screenshot of the page where the displayed document is located to encode, and the principle is as follows:
1. the method comprises the steps that a mobile phone APP obtains a page of a current display document at a frequency of 20 times per second to serve as frame data, and the frame data are sequentially transmitted into an encoder;
2. the encoder carries out H264 encoding on the page data and then sequentially outputs the page data;
3. the coded data are packaged into a self-defined data format and are sequentially sent to a screen projection box APP through a link connected with a box end;
referring to fig. 11, the decoding and displaying process at the same-screen box end is as follows:
the box end continuously receives frame data sent from the mobile phone end, and the frame data can be displayed in a video form only by processing and rendering, and the principle is as follows:
1. the screen projection box APP receives the data, and the user-defined data are analyzed to obtain coded data;
2. the coded data is transmitted to a decoder for decoding, and the decoded frame data is rendered on a box end display area;
3. the process is continuously executed, and the function that the document page of the mobile phone end is displayed to the TV end in the same screen is realized;
an embodiment of the present invention provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor.
The processor and memory may be connected by a bus or other means.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It should be noted that the terminal in this embodiment may be applied to, for example, a transmitting end or a receiving end in the embodiment shown in fig. 1, the terminal in this embodiment can form a part of the system architecture in the embodiment shown in fig. 1, and these embodiments all belong to the same inventive concept, so these embodiments have the same implementation principle and technical effect, and are not described in detail here.
The non-transitory software programs and instructions required to implement the information co-screening method of the above-described embodiments are stored in a memory, and when executed by a processor, perform the information co-screening method of the above-described embodiments, e.g., perform the method steps S100 to S200 in fig. 2 and the method steps S400 to S500 in fig. 4 described above.
The above described terminal embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, an eleventh embodiment of the present invention provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by a processor or a controller, for example, by a processor in the terminal embodiment, and can make the processor execute the information on-screen method in the above-described embodiment, for example, execute the above-described method steps S100 to S200 in fig. 2 and method steps S400 to S500 in fig. 4.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and various equivalent modifications or substitutions can be made without departing from the spirit of the present invention and the scope of the present invention is defined by the appended claims.
Claims (13)
1. An information on-screen method is applied to a sending end, and the information on-screen method comprises the following steps:
acquiring image information of a target layer where target display information is located;
and sending the image information to a receiving end so that the receiving end displays the image information on a display end.
2. The information on-screen method according to claim 1, wherein before the obtaining of the image information of the target layer where the target display information is located, the information on-screen method further comprises:
acquiring target display information and displaying the target display information on a target layer;
and acquiring a co-screen instruction for displaying the target display information on the same screen, and determining the target layer where the target display information is located according to the co-screen instruction.
3. The information on-screen method according to claim 1, further comprising:
and acquiring non-target display information, and displaying the non-target display information on a non-target layer.
4. The information on-screen method according to claim 1, wherein the obtaining of the image information of the target layer where the target display information is located includes:
and acquiring image information of a target layer where the target display information is located at a set frequency.
5. The information on-screen method according to claim 1, wherein the sending the image information to a receiving end comprises:
and encoding and packaging the image information, and then sending the image information to a receiving end.
6. The information on-screen method according to claim 3, wherein the non-target presentation information comprises at least one of: a pop-up message or a reminder message.
7. The information on-screen method according to any one of claims 1 to 6, wherein the target presentation information includes at least one of: document information, picture information, or video information.
8. An information on-screen method is applied to a receiving end, and the information on-screen method comprises the following steps:
receiving image information from a sending end, wherein the image information is image information of a target layer where target display information in the sending end is located;
and displaying the image information on a display end.
9. The information on-screen method according to claim 8, wherein when the image information is encoded and encapsulated image information, the displaying the image information on a display end includes:
and decapsulating and decoding the encoded and encapsulated image information, and displaying the decapsulated and decoded image information on a display terminal.
10. The information on-screen method according to claim 8 or 9, wherein the target presentation information includes at least one of: document information, picture information, or video information.
11. A transmitting end, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the information on-screen method according to any one of claims 1 to 7 when executing the computer program.
12. A receiving end, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the information on-screen method according to any one of claims 8 to 10 when executing the computer program.
13. A computer-readable storage medium having stored thereon computer-executable instructions for performing the information on-screen method of any one of claims 1 to 7 or the information on-screen method of any one of claims 8 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110722446.5A CN115599326A (en) | 2021-06-28 | 2021-06-28 | Information co-screen method, sending end, receiving end and computer readable storage medium |
| PCT/CN2022/099222 WO2023273905A1 (en) | 2021-06-28 | 2022-06-16 | Screen synchronization method for information, transmitter, receiver, and computer-readable storage medium |
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| CN202110722446.5A CN115599326A (en) | 2021-06-28 | 2021-06-28 | Information co-screen method, sending end, receiving end and computer readable storage medium |
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| KR102227661B1 (en) * | 2014-01-08 | 2021-03-15 | 삼성전자주식회사 | Method for screen mirroring and apparatus thereof |
| CN112099705B (en) * | 2020-09-04 | 2022-06-10 | 维沃移动通信有限公司 | Screen projection method and device and electronic equipment |
| CN112433692A (en) * | 2020-12-11 | 2021-03-02 | 上海中通吉网络技术有限公司 | Screen projection method and device |
| CN112764853A (en) * | 2021-01-19 | 2021-05-07 | 深圳乐播科技有限公司 | Screen projection method, equipment and system |
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