TWI767176B - Video conference system can identify video signal source - Google Patents

Abstract

A wireless video conference system comprises a first transmitter and a receiver, and the first transmitter transmits first video data. The receiver includes a receiver control unit, and the receiver control unit assigns a first identification code to the first transmitter. By combining the first video data and the first identification image corresponding to the first identification code, the receiver control unit synthesizes the first synthesized video data. The receiver control unit outputs the first synthesized video data to the display device. Through the present invention, participants in a video conference can easily identify the presenter providing the corresponding video signal source for a certain video disokayed in the split picture, and then easily raise questions to the right person.

Description

A wireless presentation system that can identify the source of the video signal

The present invention relates to a wireless presentation system capable of identifying the source of video signals.

Traditionally, when a presentation staff wants to operate an information processing device (such as a notebook computer) to conduct a presentation through a display device, a video signal cable (such as an HDMI video transmission cable) must be used to connect the information processing device and the display device (such as a projector or a large-size TV). ), in order to transmit the presentation image data output by the information processing device to the display device, and then display the presentation image data. However, there are many limitations in the use of the method of using wired video signal lines to connect the information processing device and the display device for presentation. The information processing device removes the video signal cable and then connects the video signal cable to another information processing device, which often results in interruption of the meeting agenda.

In view of the above-mentioned inconvenience in operation, there are currently multi-person wireless presentation system products on the market; such multi-person wireless presentation system products generally include multiple transmitter devices and a single receiver device. Each member participating in the conference can connect a transmitter device to the video output port of his information processing device, and the receiver device is connected to the video output port of the display device. information input port. When only one presenter presses the projection button on the transmitter device, one of the transmitter devices will wirelessly transmit image data with the receiver device, and the display device will only display the image output by a single information processing device material. However, when multiple presenters press the projection button on the transmitter device, several of these transmitter devices will wirelessly transmit image data with the receiver device, and the display device will display multiple information in a split-screen manner. The image data output by the processing device. However, in the display state of the split screen mode, it is easy to cause confusion for the participants in the conference, and the conference participants cannot identify which information processing device of the presenter is the source of each video signal in the split screen of the current display device. Therefore, when a conference participant wants to have a question about a screen in the split screen, he or she must additionally ask for the presentation information to confirm who this screen is, and then he can ask the relevant presenter for discussion.

In view of this, the present invention proposes a method for identifying the source of a video signal and a wireless briefing system using the method, so as to effectively solve the above-mentioned problems encountered in the prior art.

According to a first aspect of the present invention, a method for identifying the source of a picture signal is provided, which includes a receiving-end control unit in a receiving-end device assigning a first identification code to a first transmitting-end device. The first image data is transmitted through the first transmitting end device. The control unit at the receiving end synthesizes the first image data and the first identification image corresponding to the first identification code into the first synthetic image data, and the control unit at the receiving end outputs the second synthetic image data to the display device.

According to a second aspect of the present invention, a method for identifying the source of a picture signal is provided, which includes transmitting a first image data and a first identification code to a receiver via a first transmitting device. The receiver control unit in the receiver device. The control unit at the receiving end synthesizes the first image data and the first identification image corresponding to the first identification code into the first synthetic image data, and the control unit at the receiving end outputs the first synthetic image data to the display device.

According to a third aspect of the present invention, a method for identifying a source of a video signal is provided, which includes the following steps: a first transmitting-end control unit in a first transmitting-end device synthesizes a first video data and a first identification image into a first synthesized video data, the first identification image corresponds to the first identification code. The first composite video data is transmitted to the receiver control unit in the receiver device through the first transmitter device. The receiver control unit outputs the first synthesized video data to the display device.

According to a fourth aspect of the present invention, a method for identifying the source of a video signal is provided, including: a receiver control unit in a receiver device assigns a first identification code to a first transmitter device, and the receiver control unit assigns a second identification code to the second transmitter device. When the receiver control unit receives the first video data transmitted by the first transmitter device and the second video data transmitted by the second transmitter device at the same time, the receiver control unit performs the following steps: The first identification image corresponding to an identification code is synthesized into the first synthesized video data. The second video data and the second identification image corresponding to the second identification code are combined into second composite video data, and the first composite video data and the second composite video data are composited into a split-screen video data, and the split-screen video The data is output to the display device.

According to a fifth aspect of the present invention, a method for identifying a source of a video signal is provided, comprising: when a receiver control unit in a receiver device receives first video data and a first identification code transmitted by a first transmitter device, and Simultaneously received the second transmitter When the device transmits the second video data and the second identification code, the receiver control unit executes the following steps: the receiver control unit combines the first video data and the first identification image corresponding to the first identification code to synthesize a first composite video material. The receiver control unit synthesizes the second video data and the second identification image corresponding to the second identification code into the second composite video data, and the receiver control unit synthesizes the first composite video data and the second composite video data into a segment screen video data, and output the split screen video data to the display device.

According to a sixth aspect of the present invention, a method for identifying the source of a video signal is provided, comprising: when a receiver control unit in a receiver device simultaneously receives first video data and a second transmitter device transmitted by a first transmitter device When the second video information is transmitted, the following steps are performed: the control unit at the receiving end notifies the control unit at the first transmitting end to synthesize the first video information and the first identification image into the first synthesized video information, and the first identification image corresponds to the first identification image. an identification code. The receiver control unit notifies the second transmitter control unit to synthesize the second video data and the second identification image into the second composite video data, and the second identification image corresponds to the second identification code. The first composite video data is sent to the control unit of the receiving end through the first transmitting end device. The second composite video data is sent to the control unit at the receiving end via the second transmitting end device. and the receiver control unit synthesizes the first composite video data and the second composite video data into a split-screen video data, and outputs the split-screen video data to the display device.

According to a seventh aspect of the present invention, a video conference system is provided. The video conference system includes a first transmitter device and a receiver device, and the first transmitter device transmits first image data. The receiving end device includes a receiving end control unit, and the receiving end control unit assigns a first identification code to the first transmitting end device. Wherein, the control unit of the receiving end converts the first image The data and the first identification image corresponding to the first identification code synthesize the first synthetic image data, and the control unit at the receiving end outputs the first synthetic image data to the display device.

According to an eighth aspect of the present invention, a video conference system is provided. The video conference system includes a first transmitter device and a receiver device. The first transmitting end device transmits the first image data and the first identification code. The receiver device includes a receiver control unit, the receiver control unit synthesizes the first image data and the first identification image corresponding to the first identification code into the first composite image data, and the receiver control unit outputs the first composite image data to the display device.

According to a ninth aspect of the present invention, a wireless presentation system is provided. The wireless presentation system includes a first transmitting end device, a second transmitting end device and a receiving end device. A first transmission end device, the first transmission end device includes a first transmission end control unit, and the first transmission end control unit synthesizes a first video data and a first identification image corresponding to a first identification code into a For the first composite video data, the first transmitting end device transmits the first composite video data. A second transmission end device, the second transmission end device includes a second transmission end control unit, and the second transmission end control unit synthesizes a second video data and a second identification image corresponding to a second identification code into a The second composite video data, the second transmitting end device transmits the second composite video data. a receiver device, the receiver control unit receives the first composite video data and the second composite video data, synthesizes the first composite video data and the second composite video data into a split-screen video data, and outputs the split-screen video data to display device.

According to a tenth aspect of the present invention, a video conference system is provided. The video conference system includes a first transmitting end device and a receiving end device. The first transmission end device includes a first transmission end control unit and a first transmission module. The first transmission end control unit is used for receiving The first image data is received, and the first transmission module is used for transmitting the first image data. The receiver device is coupled to the display device and includes a second transmission module and a receiver control unit. The second transmission module is used for selectively establishing a connection with the first transmission module and receiving the first image data. The receiver control unit is used for outputting the first image data to the display device. When the first image data is displayed on the display device, the first image data corresponds to the first image area, and the receiver control unit receives the input from the user input device. the location of the user's operation. Wherein, when the receiving end control unit determines that the position operated by the user is located in the first image area, the receiving end control unit sends a prompt command to the first transmitting end device, so that the first transmitting end device sends out the first acousto-optic signal.

In order to have a better understanding of the above-mentioned and other aspects of the present invention, the following specific examples are given and described in detail in conjunction with the accompanying drawings as follows:

300, 800: Wireless Briefing System

310, 810: the first transmission end device

312, 812: the first transmission end control unit

314, 814: The first transmission module

316, 816: first indicating device

320, 820: Receiver device

322, 822: The second transmission module

324, 824: receiver control unit

330, 830: The second transmission end device

332, 832: the second transmission end control unit

334, 834: The third transmission module

336, 836: Second indicating device

350, 850: The first video source

352, 852: Second video source

360, 860, 1260: Display device

462, 862: the first video area

464: First recognition area

466, 866: Second video area

468: Second identification area

870: User Input Device

Ipt1: The first user operation

Ipt2: Second user operation

P1: First user

P2: Second user

Vid1: First video data

Vid2: Second video data

Vid_C1: The first composite video data

Vid_C2: Second composite video data

WL1, WL2: wireless transmission

FIG. 1 is a flowchart of a method for identifying the source of a video signal according to the first embodiment of the present disclosure.

FIG. 2 shows an example of a detailed flow chart of the method of identifying the source of the video signal in FIG. 1 .

FIG. 3 is a block diagram of the wireless presentation system according to the first embodiment of the present disclosure.

FIG. 4A is a schematic diagram illustrating an application scenario of the wireless presentation system in FIG. 3 .

FIG. 4B is a schematic diagram of the image area and the recognition area in an embodiment of FIG. 4A .

FIG. 4C is a schematic diagram of the image area and the recognition area in an embodiment of FIG. 4A .

FIG. 5 is a flowchart of a method for identifying the source of a video signal according to the second embodiment of the present disclosure.

FIG. 6 shows an example of a detailed flow chart of the method of identifying the source of the video signal in FIG. 5 .

FIG. 7 is a flowchart of a method for identifying a source of a video signal according to a third embodiment of the present disclosure.

FIG. 8 is a block diagram of a wireless presentation system according to a third embodiment of the present disclosure.

FIG. 9 is a schematic diagram illustrating an application scenario of the wireless presentation system in FIG. 8 .

FIG. 10 is a flowchart of a method for identifying the source of a video signal according to the fourth embodiment of the present disclosure.

FIG. 11 shows an example of a detailed flow chart of the method of identifying the source of the video signal in FIG. 10 .

FIG. 12 is a block diagram of a wireless presentation system according to a fourth embodiment of the present disclosure.

Please refer to FIG. 1 , which is a flowchart of a method for identifying the source of a video signal according to the first embodiment of the present disclosure. Please refer to FIG. 3 , which is a block diagram of a wireless presentation system 300 according to the first embodiment of the present disclosure. As shown in FIG. 1 , the method of the present disclosure for identifying the source of a picture signal includes the following steps: Step 102 : The receiver control unit 324 in the receiver device 320 assigns a first identification code to the first transmitter device 310 . Step 104 : Transmit the first image data through the first transmitting device 310 . Step 106: The receiver control unit 324 sends the first The image data and the first identification image corresponding to the first identification code are combined into the first synthetic image data. Step 108 : The receiver control unit 324 outputs the first composite image data to the display device 360 .

As shown in FIG. 3 , the wireless presentation system includes a first transmitter device 310 and a receiver device 320 , and can optionally include a second transmitter device 330 . The first transmitter device 310 includes a first transmitter control unit 312 and a first transmission module 314 . The first transmitter control unit 312 is used for receiving the first video data Vid1 from the first video source 350 , and the first transmission module 314 The first video data Vid1 can be transmitted. Similarly, the second transmission end device 330 includes a second transmission end control unit 332 and a third transmission module 334. The second transmission end control unit 332 is used for receiving the second video data Vid2 from the second video source 352, and the third transmission end The module 334 is used for transmitting the second video data Vid2. The receiver device 320 includes a second transmission module 322 and a receiver control unit 324 . The second transmission module 322 can selectively establish a wireless transmission WL1 connection with the first transmission module 314 and receive the first video data Vid1, and the second transmission module 322 and the third transmission module 334 can selectively establish wireless transmission Transmit the WL2 connection and receive the second video data Vid2.

Please refer to FIG. 2 , which shows an example of a detailed flow chart of the method for identifying the source of the video signal in FIG. 1 . Corresponding to step 102, when the receiver device 320 establishes a connection with the first transmitter device 310, the receiver control unit 324 assigns the first identification code to the first transmitter device 310. The detailed steps include the steps shown in FIG. 2 204~206. In step 204, it is determined whether the receiving end device 320 establishes a connection with the transmitting end device? If the connection has been established, step 206 is executed. In step 206, the receiving end device 320 records the order in which the transmitting end device established the connection, and assigns an identification code corresponding to the color of the order to the transmitting end device. In addition, in step 204, when the receiving end device 320 is connected to the first transmitting end device 310 After the power is turned on, the user can press the pairing button on the receiver device 320 and the first transmitter device 310, and then the two parties will try to establish a connection. After the first transmission module 314 in the first transmitter device 310 and the second transmission module 322 in the receiver device 320 establish a connection, step 206 is executed, and the receiver device 320 and the first transmitter device 310 will The internal information is updated interactively with each other, and the receiving end device 320 records the order in which the first transmitting end device 310 established the connection, and assigns an identification code corresponding to the color of the order to the transmitting end device. The first transmitting end control unit 312 and the receiving end control unit 324 both internally store a list of the colors corresponding to the identification codes by default. For example, the first transmitting end device that successfully establishes a connection with the receiving end device 320 is scheduled to be assigned as the identification code. Code #1, the corresponding first identification image is red, and the second transmitting end device successfully connected is scheduled to be assigned identification code #2, and its corresponding second identification image is green... and so on. In this way, when the first transmitting end device 310 is the first transmitting end device to establish a connection, the receiving end control unit 324 will record that the first transmitting end device 310 is the first to establish a connection, and assign the identification code #1 to the first transmitting end device 310 . A transmitter device 310 . Similarly, when the second transmitter device 330 is powered on and becomes the second transmitter device that successfully establishes a connection with the receiver device 320, the receiver control unit 324 will record whether the second transmitter device 330 is the first transmitter The connection is established in two steps, and the identification code #2 is assigned to the second transmitting end device 330 . The receiver control unit 324 can learn that the first identification image corresponding to the identification code #1 is red, and the second identification image corresponding to the identification code #2, by referring to the list of the colors of the lights corresponding to the identification codes stored in the preset. is green. In this embodiment, the first identification image and the second identification image are illustrated as red and green respectively, but not limited to this, the first identification image and the second identification image may also be Arabic numerals "1" respectively. " and "2", or the English letters "A" and "B".

Corresponding to step 104 , the detailed steps include step 208 shown in FIG. 2 . In step 208, it is determined whether the transmitting end device transmits the video data to the receiving end device 320? If yes, step 210 is executed. When the first transmission module 314 of the first transmitter device 310 and the second transmission module 322 of the receiver device 320 establish a connection, but the first user has not pressed the projection button on the first transmitter device 310, the first A transmitter device 310 does not transmit the first video data Vid1 to the receiver device 320 . After the first user presses the projection button on the first transmitting end device 310, the first transmitting end device 310 starts to transmit the first video data Vid1 to the receiving end device 320. If step 208 is satisfied, then step 210 is executed. By analogy, when the third transmission module 334 of the second transmitter device 330 establishes a connection with the second transmission module 322 of the receiver device 320 , when the second user presses the projection button on the second transmitter device 330 Afterwards, the second transmitting end device 330 starts to transmit the second video data Vid2 to the receiving end device 320 .

As shown in FIG. 2 , the method for identifying the source of a video signal in this embodiment may optionally include step 209 , determining whether more than one transmitting-end device transmits video data to the receiving-end device 320 ? If so, go to step 210, otherwise skip step 210. In step 209, the receiver control unit 324 can dynamically close the video synthesis circuit in the receiver control unit to dynamically reduce the power consumption of the receiver control unit 324 to achieve a power saving effect. The applicable situation of step 209 is: although both the first transmitting end device 310 and the second transmitting end device 330 have established a connection with the receiving end device 320, (1) when only the first transmitting end device 310 is transmitting the first video data Vid1 to When the entire screen of the receiving device 320 and the display device 360 is displaying the first video data Vid1, the conference participants can clearly understand that the presenter who is operating the first transmitting device 310 is currently outputting the first video data. Vid1, so the receiving end control unit 324 can omit the color corresponding to the identification code displayed in the display device 360, for example, the receiving end control unit 324 can close the video synthesis circuit in the receiving end control unit 324, skip step 210, to reduce the receiving end Power consumption of the control unit 324 . (2) When the first transmitting-end device 310 transmits the first video data Vid1 to the receiving-end device, and at the same time the second transmitting-end device 330 transmits the second video data Vid2 to the receiving-end device 320, the display device 360 splits the screen at the same time When the first video data Vid1 and the second video data Vid2 are displayed, when the conference participants cannot clearly identify the video signals, the receiving end control unit 324 only needs to display the color corresponding to the identification code in the display device 360, for example, the receiving end The control unit 324 only activates the video synthesis circuit in the receiver control unit 324 at this time, and step 210 is executed.

Corresponding to steps 106-108, the detailed steps include step 210 shown in FIG. 2: the receiving end device 320 displays the color corresponding to the identification code in the display device 360 according to the identification code assigned to the transmitting end device, and the indicator light of the transmitting end device is displayed. Displays the color corresponding to the identification code. When the first transmitter device 310 transmits the first video data Vid1 to the second transmission module 322, the receiver control unit 324 synthesizes the first video data Vid1 and the first identification image (eg, a red identification image) into a first composition video data Vid_C1 , and output the first composite video data Vid_C1 to the display device 360 . When the first composite video data Vid_C1 is displayed on the display device 360, as shown in FIG. 4A, the first composite video data Vid_C1 corresponds to the first video region 462 and the first identification region 464, and the first video region 462 is adjacent to the first video region 462. In the identification area 464, the first video area 462 displays the first video data Vid1, and the first identification area 464 displays the first identification image. The receiving end control unit 324 sends a prompt instruction to request the first indicating device 316 of the first transmitting end device 310 to display the first identification image. In this embodiment, the receiver control unit 324 combines the first video data Vid1 and the red identification image into the first composite For the video data Vid_C1, the corresponding red identification image is displayed on the display device 360, and the indicator light on the first transmitting end device 310 is displayed in red corresponding to the identification code #1. By analogy, the receiver control unit 324 combines the second video data Vid2 and the green identification image into the second composite video data Vid_C2, and outputs the second composite video data Vid_C2 to the display device 360, so that the corresponding display device 360 displays the corresponding video data Vid_C2. The green identification image is displayed, and the second indicating device 336 (such as an indicator light) on the second transmitting end device 330 displays the green color corresponding to the identification code #2.

Please refer to FIGS. 4A to 4B , which respectively illustrate a schematic diagram of an application scenario of the wireless presentation system of the present disclosure, and a schematic diagram of an image area and an identification area of an embodiment. The first video source 350 (such as a notebook computer) operated by the first user P1 outputs the first video data Vid1 to the first transmitting device 310, and the second video source 352 (such as a notebook computer) operated by the second user P2 ) outputs the second video data Vid2 to the second transmitting end device 330 . Both the first transmitting end device 310 and the second transmitting end device 330 establish a connection with the receiving end device 320 . When the first transmitting end device 310 is the first transmitting end device that establishes a connection with the receiving end device 320, it is assigned to the identification code #1. When the first composite video data Vid_C1 is displayed on the display device 360 , the first composite video data Vid_C1 corresponds to the first video region 462 and the first identification region 464 located on the left half of the display device 360 , and the first video region 462 is adjacent to the first video region 462 . An identification area 464, the first video area 462 displays the first video data Vid1, and the first identification area 464 displays the red identification image corresponding to the identification code #1. As shown in FIG. 4B, the first identification area 464 is located at the upper left corner of the first video area 462, and a red block is displayed at the upper left corner. By analogy, when the second transmitting end device 330 is the second transmitting end device that establishes a connection with the receiving end device 320, it is assigned the identification code #2. When the second composite video data Vid_C2 is displayed on the display device 360 , the second composite video data Vid_C2 corresponds to the second video area 466 located on the right half of the display device 360 With the second identification area 468, the second video area 466 is adjacent to the second identification area 468, the second video area 466 displays the second video data Vid2, and the second identification area 468 displays the green identification image corresponding to the identification code #2. The second identification area 468 is located at the upper left corner of the second video area 466, and a green block is displayed at the upper left corner. As shown in FIG. 4B , the control unit 324 at the receiving end assigns a second identification code (eg, identification code #2) to the second transmitting end device 330 , and transmits the second video data Vid2 through the second transmitting end device 330 , and the receiving end controls The unit 324 combines the second video data Vid2 with the second identification image (eg, the green identification image) corresponding to the second identification code to synthesize the second combined video data Vid_C2, and the receiver control unit 324 combines the first combined video data Vid_C1 with the first combined video data Vid_C1. The two composite video data Vid_C2 are output to the display device 360 , and the first composite video data Vid_C1 and the second composite video data Vid_C2 are displayed on the display device 360 in a split screen manner. For example, the receiver control unit 324 synthesizes the first composite video data Vid_C1 and the second composite video data Vid_C2 into a split-screen video data, and outputs the split-screen video data to the display device 360 .

Please refer to FIG. 4C , which shows a schematic diagram of an image area and an identification area according to another embodiment. The first identification area 464 surrounds the outer periphery of the first video area 462 , and a red outer frame is displayed at the outer periphery. The second identification area 468 surrounds the outer periphery of the second video area 466, and a green frame is displayed at the outer periphery.

The first transmitter device 310 has a first indicator light 316, and the receiver control unit 324 sends a prompt command to request the first indicator light of the first transmitter device 310 to display a red identification image. In this way, the participants in the conference can clearly understand the correspondence between the first video area 462 , the red identification image in the first identification area 464 and the red identification image displayed by the first indicator light, and can easily understand that the display device 360 is located on the display device 360 . The video signal source of the first video area 462 on the left half is the first video source 350 operated by the first user. By analogy, the second transmitting end device 330 has a second indicator light 336, and the receiving end control unit 324 sends A prompt command is issued to require the second indicator light of the second transmitting end device 330 to display a green identification image. In this way, the conference participants can clearly understand the correspondence between the second video area 466 , the green identification image in the second identification area 468 and the green identification image displayed by the second indicator light, and can easily understand that the display device 360 is located on the display device 360 . The video signal source of the second video area 466 on the right half is the second video source 352 operated by the second user. In the present embodiment, the relationship between the first video area 462 and the first identification area 464 is respectively described as being located at the corner of the video area or around the outer periphery of the video area, but not limited to this.

In the first embodiment, the wireless presentation system of the present disclosure can selectively execute that when the first transmitter device 310 stops transmitting the first video data Vid1 to the second transmission module 322, the receiver control unit 324 cancels the first identification The steps of the corresponding relationship between the code and the first transmitting end device 310 . Corresponding to the step of canceling the corresponding relationship between the first identification code and the first transmitting end device 310 , the detailed steps include steps 212 and 216 shown in FIG. 2 . Step 212: Determine whether the transmitting end device stops transmitting video data to the receiving end device 320? If so, step 216 is executed: the receiving end device 320 retrieves the identification code corresponding to the sequential color assigned to the transmitting end device. For example, the receiving-end control unit 324 retrieves the identification code #1 and the corresponding red identification image originally allocated to the first transmitting-end device 310. When other transmitting-end devices and the receiving-end device 320 establish a connection later, the identification code #1 can be re-identified. Code #1 and the corresponding red identification image are assigned to other transmitter devices of the new connection.

In the first embodiment, the wireless presentation system of the present disclosure can selectively execute step 214 as shown in FIG. 2 : Determine whether the transmitting end device is powered off? In this way, when the first transmitter device 310 continues to transmit the first video data Vid1 to the second transmission module 322 and the transmitter device is not powered off, the receiver control unit 324 continues to output the first composite video data Vid_C1 to the display device 360 .

Please refer to FIG. 5 , which is a flowchart of a method for identifying a video signal source according to a second embodiment of the present disclosure. The method for identifying the source of the video signal according to the second embodiment of the present disclosure can also adopt the hardware structure of the block diagram of the wireless presentation system as shown in FIG. 3, and only need to modify the first transmitter control unit 312 and the second transmitter The firmware programs inside the control unit 332 and the receiver control unit 324 enable the first transmitter control unit 312 , the second transmitter control unit 332 and the receiver control unit 324 to jointly execute the method steps shown in FIGS. 5 to 6 . As shown in FIG. 5 , the method for identifying the source of a picture signal of the present disclosure includes the following steps: Step 502 : Send a first identification code to the receiver control unit 324 in the receiver device 320 via the first transmitter device 310 . Step 504 : Transmit the first video data Vid1 to the receiver control unit 324 in the receiver device 320 via the first transmitter device 310 . Step 506 : The receiver control unit 324 combines the first video data Vid1 with the first identification image corresponding to the first identification code to synthesize the first composite video data Vid_C1 . And step 508 : the receiver control unit 324 outputs the first composite video data Vid_C1 to the display device 360 .

Please refer to FIG. 6 , which shows an example of a detailed flow chart of the method for identifying the source of the video signal in FIG. 5 . Corresponding to step 502, when the receiver device 320 establishes a connection with the first transmitter device 310, the first identification code is transmitted to the receiver control unit 324 in the receiver device 320 via the first transmitter device 310. The detailed steps are: Steps 604 to 606 shown in FIG. 6 are included. Step 604: Determine whether the receiving end device 320 establishes a connection with the transmitting end device? If the connection has been established, step 606 is executed. Step 606 : The first transmitter device 310 transmits the identification code of the built-in color to the receiver control unit 324 in the receiver device 320 . In step 604, after the receiver device 320 and the first transmitter device 310 are powered on, the user can press the pairing button on the receiver device 320 and the first transmitter device 310, and then both parties will try to establish a connection. When the first transmission module 314 in the first transmitting-end device 310 and the second transmitting-end device 320 in the receiving-end device 320 After the input module 322 establishes the connection, step 606 is executed, the receiving-end device 320 and the first transmitting-end device 310 mutually update the internal information, and the first transmitting-end device 310 transmits the first identification code to the receiving-end device 320. The receiver control unit 324 . The first transmitting-end control unit 312 and the receiving-end control unit 324 both internally store a list of the colors corresponding to the identification codes by default. When an identification image is red, the second transmitting end device 330 is set and assigned to identification code #2 when it leaves the factory, and its corresponding second identification image is green... and so on. In this way, when the first transmitter device 310 and the receiver device 320 establish a connection, the receiver control unit 324 records that the first transmitter device 310 has the identification code #1. Similarly, when the second transmitter device 330 and the receiver device 320 establish a connection later, the receiver control unit 324 records that the second transmitter device 330 has the identification code #2. The receiver control unit 324 can learn that the first identification image corresponding to the identification code #1 is red, and the second identification image corresponding to the identification code #2, by referring to the list of the colors of the lights corresponding to the identification codes stored in the preset. is green. In this embodiment, the first identification image and the second identification image are illustrated as red and green respectively, but not limited to this, the first identification image and the second identification image may also be Arabic numerals "1" respectively. " and "2", or the English letters "A" and "B".

In this embodiment, the first identification code in the first transmitting end device and the second identification code in the second transmitting end device may be, for example, the color identification codes assigned to the transmitting end device at the factory, but not limited to this. The first identification code can also be selected from one of a group consisting of a hardware serial number, user input information and a network address. For example, the first video source 350 that provides the first video data Vid1 is an information processing device (such as a notebook computer) used by the first user, and the information processing device runs an operating system (such as a Microsoft Windows operating system), and the first identification The code is user information provided by the operating system (such as the Microsoft Windows Windows operating system console The personal information of the first user is set in the device), for example, "Peter"; then the information processing device transmits "Peter" to the first transmitting end device 310 as the first identification code. For another example, the source of the first video data Vid1 is an information processing device (such as a notebook computer), which has a camera on it to capture the portrait of the first user; then the information processing device transmits the portrait of the first user to the first transmitting end device 310 as the first identification code. For another example, the source of the first video data Vid1 is an information processing device (such as a notebook computer), which is connected to the Internet and has a network IP address; the information processing device transmits the network IP address to the first transmitting end Device 310 serves as the first identification code. For another example, the first transmitter device 310 has a factory hardware serial number, and the first identification code is the factory hardware serial number of the first transmitter device 310 . Another example is that the information processing device executes communication software (such as Line, Skype, etc.), and the information processing device obtains the personal information of the logged-in user, such as "Peter"; then the information processing device sends "Peter" to the first transmission-end device 310 as the first identification code. Any of the above-mentioned information that can identify the information processing device can be used as the first identification code. When the first identification code is "Peter", the factory hardware serial number or the network IP address, the first identification image is the image of the above-mentioned text. When the first identification code is the portrait of the first user, the first identification image is the portrait of the first user.

Corresponding to step 504 , the detailed steps include step 608 shown in FIG. 6 : determine whether the transmitting end device transmits the video data to the receiving end device 320 ? If yes, step 610 is executed. The specific details of this step 608 are the same as those of step 208 .

As shown in FIG. 6 , the method for identifying the source of the video signal in this embodiment may optionally include step 609 , determine whether more than one transmitting-end device transmits video data to the receiving-end device? If so, go to step 610, otherwise skip step 610. The specific details of this step 609 are the same as those of step 209 .

Corresponding to steps 506-508, the detailed steps include step 610 shown in FIG. 6: the receiving end device 320 displays the color corresponding to the identification code in the display device 360 according to the identification code transmitted by the transmitting end device, and the instruction of the transmitting end device The light shows the color corresponding to the identification code. The specific details of this step 610 are the same as those of the step 210 .

In the second embodiment, the wireless presentation system of the present disclosure further executes step 612 as shown in FIG. 6: Is the transmitting end device powered off? In this way, when the first transmitter device 310 continues to transmit the first video data Vid1 to the receiver device 320 and the transmitter device is not powered off, the receiver control unit 324 continues to output the first composite video data Vid_C1 to the display device 360 .

Please refer to FIG. 7 , which is a flowchart of a method for identifying a source of a video signal according to a third embodiment of the present disclosure. Please refer to FIG. 8 , which is a block diagram of a wireless presentation system 800 according to a third embodiment of the present disclosure. As shown in FIG. 7 , the method for identifying the source of a picture signal of the present disclosure includes the following steps: Step 702 : The first transmitting-end device 810 transmits the first video data Vid1 to the receiving-end device 820 , and the receiving-end device 820 outputs the first video data Vid1 . A video data Vid1 is provided to the display device 860 , and the first video data Vid1 corresponds to the first video area 862 in the display screen of the display device 860 . Step 704: The user input device 870 provides the location of the user operation. Step 706: Determine whether the position operated by the user is located in the first video area 862 by the receiver control unit 824? Step 708 : When the position operated by the user is located in the first video area 862 , the receiver control unit 824 sends a prompt command to the first transmitter device 810 , so that the first transmitter device 810 emits the first acousto-optic signal.

As shown in FIG. 8 , the wireless presentation system includes a first transmitter device 810 and a receiver device 820 , and can optionally include a second transmitter device 830 . The first transmission end device 810 includes a first transmission end control unit 812 , a first transmission module 814 and a first indication device 816 . The first transmitter control unit 812 is used for receiving the first video data Vid1 from the first video source 850 , and the first transmission module 814 can transmit the first video data Vid1 . Similarly, The second transmission end device 830 includes a second transmission end control unit 832 , a third transmission module 834 and a second indication device 836 . The second transmitter control unit 832 is used for receiving the second video data Vid2 from the second video source 852 , and the third transmission module 834 is used for transmitting the second video data Vid2 . The receiver device 820 includes a second transmission module 822 and a receiver control unit 824 . The second transmission module 822 can selectively establish a connection with the first transmission module 814 and receive the first video data Vid1, and the second transmission module 822 can selectively establish a connection with the third transmission module 834 and receive the first video data Vid1 The second video data Vid2. The receiver control unit 824 is used for outputting the first video data Vid1 and the second video data Vid2 to the display device 860. When the first video data Vid1 is displayed on the display device 860, the first video data Vid1 corresponds to the first video The area 862 and the second video data Vid2 correspond to the second video area 866, and the first video area 862 and the second video area 866 are displayed in a split screen manner. The receiver control unit 824 also receives a user-operated position provided by the user input device 870 .

Please refer to FIG. 9 , which is a schematic diagram of an application scenario of the wireless presentation system in FIG. 8 . In this embodiment, the user input device 870 is a touch panel of a large-size TV, which can provide the user with a touch-sensitive touch panel. operation, but not limited to this. The receiver control unit 824 outputs the first video data Vid1 and the second video data Vid2 to the display device 860 . When the first video data Vid1 is displayed on the display device 860 , the first video data Vid1 corresponds to the left half of the display device 860 The first video area 862 of , the second video data Vid2 corresponds to the second video area 866 with half of the display device 860 , and the first video area 862 and the second video area 866 are displayed in a split screen manner. When the user applies a first user operation Ipt1 (such as a press or touch operation) in the first video area 862 on the left half, the touch panel will provide the position coordinate information of the relevant user operation to the receiver control unit 824 . When the receiver control unit 824 receives the information provided by the user input device 870 When it is determined that the position operated by the user is located in the first video area 862, the receiver control unit 824 sends a prompt command to the first transmitter device 810 to make the first instruction of the first transmitter device 810. The device 816 sends out a first sound and light signal, for example, the indicator light on the first transmitting end device 810 emits a red light signal, or the buzzer emits a short sound. Similarly, when the user applies a second user operation Ipt2 (such as a press or touch operation) in the second video area 866 on the right half, the touch panel will provide the position coordinate information of the relevant user operation to the receiving end Control unit 824. When the receiver control unit 824 receives a user-operated position provided by the user input device 870, and determines that the user-operated position is located in the second video area 866, the receiver control unit 824 sends a prompt command to the second transmission The end device 830 makes the second indicator device 836 of the second transmission end device 830 emit a second acousto-optic signal, and the second acousto-optic signal is different from the first acousto-optic signal; for example, the indicator light on the second transmission end device 830 emits a second acousto-optic signal Green light, or two short beeps from the buzzer.

Please refer to FIG. 10 , which is a flowchart of a method for identifying a source of a video signal according to a fourth embodiment of the present disclosure. Please refer to FIG. 12 , which is a block diagram of a wireless presentation system 1200 according to a fourth embodiment of the present disclosure. As shown in FIG. 10, the method for identifying the source of the screen signal of the present disclosure includes the following steps. In step 1002, the first transmitter control unit in the first transmitter device synthesizes the first video data and the first identification image into first composite video data, wherein the first identification image corresponds to the first transmitter device The first identification code inside. In step 1004, the first composite video data is transmitted to the receiver control unit in the receiver device via the first transmitter device. In step 1006, the receiver control unit outputs the first composite video data to the display device.

As shown in FIG. 12 , the wireless presentation system includes a first transmitter device 1210 , a second transmitter device 1230 and a receiver device 1220 . The first transmitter device 1210 includes a first transmitter control unit 1212 , a first indication device 1216 and a first transmission module 1214 . The first transmitter control unit 1212 is used for receiving the first video data Vid1 from the first video source 1250 . The first transmitter control unit 1212 can selectively combine the first video data Vid1 and the first identification image corresponding to the first identification code to synthesize the first composite video data Vid_C1, wherein the first identification image corresponds to the first transmission The first identification code in the terminal device. The first transmission module 1214 can be used to transmit the first video data Vid1 or the first composite video data Vid_C1. Similarly, the second transmitter device 1230 includes a second transmitter control unit 1232 , a second indication device 1236 and a third transmission module 1234 . The second transmitter control unit 1232 is used for receiving the second video from the second video source 1252 . Data Vid2. The second transmitter control unit 1232 can selectively combine the second video data Vid2 with the second identification image corresponding to the second identification code to synthesize the second composite video data Vid_C2, wherein the second identification image corresponds to the second transmission The second identification code in the terminal device. The third transmission module 1234 is used for transmitting the second video data Vid2 or the second composite video data Vid_C2. The receiver device 1220 includes a second transmission module 1222 and a receiver control unit 1224 . The second transmission module 1222 can selectively establish a wireless transmission WL1 connection with the first transmission module 1214 and receive the first video data Vid1 or the first composite video data Vid_C1. The second transmission module 1222 can also selectively establish a wireless transmission WL2 connection with the third transmission module 1234 and receive the second video data Vid2 or the second composite video data Vid_C2. When the receiver control unit 1222 receives the first composite video data Vid_C1 and the second composite video data Vid_C2 at the same time, the receiver control unit 1224 outputs the first composite video data Vid_C1 and the second composite video data Vid_C2 to the display device 1260 , so that the first composite video data Vid_C1 and the second composite video data Vid_C2 are displayed on the display device 1260 in a split-screen manner. e.g. receive The terminal control unit 1222 combines the first composite video data Vid_C1 and the second composite video data Vid_C2 into a split-screen video data Vid_C3 , and outputs the split-screen video data Vid_C3 to the display device 1260 . In this embodiment, the first transmitter control unit 1212 , the second transmitter control unit 1232 and the receiver control unit 1222 have synthesizing circuits inside, which can synthesize the received synthetic video data.

Please refer to FIG. 11 , which shows an example of a detailed flow chart of the method for identifying the source of the video signal in FIG. 10 . The step 1002 shown in Fig. 10 includes the step 1104 shown in Fig. 11, the step 1004 shown in Fig. 10 includes the step 1108 shown in Fig. 11, and the step 1006 shown in Fig. Step 1112 shown in Figure 11.

As shown in FIG. 11, in step 1104, the receiver control unit 1224 notifies the first transmitter control unit 1212 to combine the first video data Vid1 and the first identification image into the first composite video data Vid_C1. After the first transmission module 1214 in the first transmitter device 1210 and the second transmission module 1222 in the receiver device 1220 establish a connection, the receiver device 1220 and the first transmitter device 1210 will exchange internal information with each other , the first transmitter device 1210 transmits the first identification code to the receiver control unit 1224 in the receiver device 1220 . The first transmitting-end control unit 1212 and the receiving-end control unit 1224 both internally store a list of the colors corresponding to the identification codes by default. When an identification image is red, the second transmitting end device 1230 is set and assigned to identification code #2 when it leaves the factory, and the corresponding second identification image is green, and so on. In this way, when the first transmitter device 1210 and the receiver device 1220 establish a connection, the receiver control unit 1224 records that the first transmitter device 1210 has the identification code #1. Similarly, when the second transfer end is loaded later When the device 1230 establishes a connection with the receiver device 1220, the receiver control unit 1224 records that the second transmitter device 1230 has the identification code #2. The receiver control unit 1224 can learn that the first identification image corresponding to the identification code #1 is red, and the second identification image corresponding to the identification code #2, by referring to the list of the colors of the lamps corresponding to the identification codes stored in the preset storage. is green. In this embodiment, the first identification image and the second identification image are illustrated in red and green, respectively, but not limited to this, the first identification image and the second identification image may also be Arabic numerals "" 1" and "2", or the English letters "A" and "B".

In step 1106, the receiver control unit 1224 notifies the second transmitter control unit 1232 to synthesize the second video data Vid2 and the second identification image into the second composite video data Vid_C2.

In step 1108 , the first composite video data Vid_C1 is transmitted to the receiver control unit 1224 via the first transmitter device 1210 . In step 1110 , the second composite video data Vid_C2 is transmitted to the receiver control unit 1224 via the second transmitter device 1230 . In step 1112, the receiver control unit 1224 combines the first composite video data Vid_C1 and the second composite video data Vid_C2 into a split-screen video data Vid_C3, and the receiver control unit 1224 outputs the split-screen video data Vid_C3 to the display device 1260. .

As shown in FIG. 11 , the method for identifying the source of the video signal of this embodiment may optionally include steps 1102 , 1114 and 1116 . In step 1102 , the receiver control unit 1224 in the receiver device 1220 determines whether (a) the first video data Vid1 transmitted by the first transmitter device 1210 and (b) the second transmitter device 1230 are simultaneously received. The transmitted second video data Vid2, if yes, go to step 1104, if not, go to step 1104 1114. Through step 1102 , the receiver control unit 1224 determines whether more than one transmitter device transmits video data to the receiver device 1220 . Steps 1114 to 1116 are for the following situations: although both the first transmitting end device 1210 and the second transmitting end device 1230 have established a connection with the receiving end device 1220, (1) when only the first transmitting end device 1210 is transmitting the first video When the data Vid1 is sent to the receiving device 1220, and the entire screen of the display device 1260 is displaying the first video data Vid1, the conference participants can clearly understand that the presenter who is operating the first transmitting device 1210 is currently outputting the first video data. Vid1, in this way, the first transmission-end control unit 1212 can omit the color corresponding to the identification code to be displayed in the display device 1260. For example, the first transmission-end control unit 1212 can turn off the video synthesis circuit in the first transmission-end control unit 1212 to reduce the connection rate. Power consumption of the first transmitter control unit 1212 . (2) When the first transmitting end device 1210 transmits the first video data Vid1 to the receiving end device 1220, and at the same time the second transmitting end device 1230 transmits the second video data Vid2 to the receiving end device 1220, the display device 1260 splits the screen When the first video data Vid1 and the second video data Vid2 are displayed at the same time, when the participants cannot clearly identify the video signal, the first transmission-end control unit 1212 only needs to display the color corresponding to the identification code on the display device 1260. For example, the first transmitter control unit 1212 only activates the video synthesis circuit in the first transmitter control unit 1212 at this time. Thus, for the above two situations (1) and (2), the first transmitter control unit 1212 can dynamically close the video synthesis circuit in the first transmitter control unit 1212 to dynamically reduce the power consumption of the first transmitter control unit 1212 , to achieve power saving effect.

As described in the above paragraph, the situation corresponding to step 1114 is, for example, that the receiver control unit 1224 only receives (a) the first video data transmitted by the first transmitter device 1210 One of Vid1 and (b) the second video data Vid2 transmitted by the second transmitting end device 1230, and step 1114 of the present invention is an example of receiving the first video information data Vid1 transmitted by the first transmitting end device 1210 illustrate. In step 1114 , the first video data Vid1 is transmitted to the receiver control unit 1224 via the first transmitter device 1210 . In step 1116, the receiver control unit 1224 displays the first video data Vid1 on the display device 1260. As shown in FIG. 11 , steps 1114 to 1116 are illustrated by taking the receiving end control unit 1224 receiving the first video data Vid1 but not receiving the second video data Vid2 for illustration, but not limited thereto. Similarly, when in step 1114, the receiver control unit 1224 receives the second video data Vid2 but not the first video data Vid1, the corresponding steps 1114-1116 are correspondingly modified as: in step 1114 , the second video data Vid2 is sent to the receiver control unit 1224 via the second transmitter device 1230 ; and in step 1116 , the receiver control unit 1224 displays the second video data Vid2 on the display device.

Corresponding to step 1104, according to the first identification code, the first transmission-end device 1210, the first transmission-end control unit 1212 synthesizes the first video data Vid1 and the first identification image (eg, the red identification image) into the first composite video data Vid_C1 , and output the first composite video data Vid_C1 to the receiver device 1220 . When the first composite video data Vid_C1 is displayed on the display device 1260, the first composite video data Vid_C1 corresponds to the first video region and the first identification region, the first video region is adjacent to the first identification region, and the first video region displays the first Video data Vid1, the first identification area displays the first identification image; the first video area and the first identification area in this embodiment are the same as the first video area 462 and the first identification area of the first embodiment shown in Figures 4A-4C Area 464. The first indicating device 1216 of the first transmitting end device 1210 simultaneously displays a first identification image (eg, a red identification image). Yu Benshi In an embodiment, the first transmission end control unit 1212 combines the first video data Vid1 and the red identification image into the first composite video data Vid_C1, so that the corresponding red identification image is displayed on the display device 1260, and the first transmission end The indicator light on the device 1210 shows the red color corresponding to the identification code #1. By analogy, the second transmitting-end control unit 1232 synthesizes the second video data Vid2 and the green identification image into the second composite video data Vid_C2, and outputs the second composite video data Vid_C2 to the receiving end device 1220, so as to enable the display device to display the second composite video data Vid_C2. The corresponding green identification image is displayed in 1260, and the second indicating device 1236 (eg, indicator light) on the second transmitting end device 1230 is made to display the green color corresponding to the identification code #2.

In this embodiment, the first identification code in the first transmitting end device and the second identification code in the second transmitting end device may be, for example, the color identification codes assigned to the transmitting end device at the factory, but not limited to this. The first identification code can also be selected from one of a group consisting of a hardware serial number, user input information and a network address. For example, the first video source 1250 that provides the first video data Vid1 is an information processing device (such as a notebook computer) used by the first user, and the information processing device runs an operating system (such as Microsoft Windows operating system), the first The identification code is the user information provided by the operating system (such as the personal information of the first user set in the Windows operating system console of Microsoft Windows), such as "Peter"; the information processing device sends "Peter" to the first user The transmitting end device 1210 is used as the first identification code. For another example, the source of the first video data Vid1 is an information processing device (such as a notebook computer), which has a camera to capture the portrait of the first user; then the information processing device transmits the portrait of the first user to the first transmitting end device 1210 as the first identification code. For another example, the source of the first video data Vid1 is an information processing device (such as a notebook computer), which is connected to the Internet and has an IP address; The communication processing device transmits the network IP address to the first transmitting end device 1210 as the first identification code. For another example, the first transmitter device 1210 has a factory hardware serial number, and the first identification code is the factory hardware serial number of the first transmitter device 1210 . Another example is that the information processing device executes a communication software (such as Line, Skype, etc.), the information processing device obtains the personal information of the logged-in user, such as "Peter"; then the information processing device sends "Peter" to the first transmission-end device 1210 as the first identification code. Any of the above-mentioned information that can identify the information processing device can be used as the first identification code. When the first identification code is "Peter", the factory hardware serial number or the network IP address, the first identification image is the image of the above-mentioned text. When the first identification code is the portrait of the first user, the first identification image is the portrait of the first user.

The method for identifying the source of a video signal and the wireless presentation system using the method according to the embodiment of the present disclosure, through (1) the first video area 362 in the display screen of the display device 360, and (2) the adjacent area in the display screen of the display device 360 The first identification image in the first identification area 464 of the first video area 362 and (3) the first identification image correspondingly displayed by the first pointing device 316 on the first transmitting end device 310, by the combination of the three The corresponding relationship between the two makes it easy for conference participants to understand which user is the source of the video signal in the first video area 362 in the split screen of the display device 360 . On the other hand, the user input device 870 detects the position where the user performs an input operation in the split screen of the display device 860. When the receiver control unit 824 determines that the user operates the position in the first video area 862, The receiving-end control unit 824 sends a prompt command to the first transmitting-end device 810, so that the first transmitting-end device 810 sends out a first acousto-optic signal, so that the participants in the conference can easily understand the source of the video signal of the current user input operation position. a user. In this way, the traditional method of splitting the screen can be avoided. In the mode display state, the conference participant cannot identify which presenter's information processing device is the source of each video signal in the split screen of the current display device. It is helpful for conference participants to quickly identify the corresponding video signal source for a certain picture in the split screen, and then raise questions for discussion.

To sum up, although the present invention has been disclosed by the above embodiments, it is not intended to limit the present invention. Those skilled in the art to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

300: Wireless Briefing System

310: The first transmission end device

312: The first transmission end control unit

314: The first transmission module

316: First Indicating Device

320: Receiver device

322: The second transmission module

324: Receiver control unit

330: Second transmission end device

332: The second transmission end control unit

334: The third transmission module

336: Second Indicating Device

350: First video source

352: Second video source

360: Display device

Vid1: First video data

Vid2: Second video data

WL1, WL2: wireless transmission

Vid_C1: The first composite video data

Vid_C2: Second composite video data

Claims (13)

A wireless briefing system, the wireless briefing system comprises: a first transmitting end device, the first transmitting end device transmits a first video data; a receiving end device, the receiving end device includes a receiving end control unit, the receiving end device The control unit assigns a first identification code to the first transmitting end device; wherein, the receiving end control unit synthesizes the first video data and a first identification image corresponding to the first identification code into a first synthesized video data, the receiver control unit outputs the first composite video data to a display device; wherein, the source of the first video data is an information processing device, and the first transmission end device is connected to the information processing device; Wherein, when the first transmitter device transmits the first video data to a second transmission module of the receiver device, the first transmitter device generates the first identification image corresponding to the first identification code ; wherein, the first transmission end device comprises a first transmission end control unit and a first transmission module, the first transmission end control unit is used for receiving the first video data, and the first transmission module is used for transmitting the first video data; wherein the second transmission module of the receiver device is used to selectively establish a connection with the first transmission module and receive the first video data, when the second transmission module communicates with the first transmission module When the first transmission module establishes a connection, the receiver control unit assigns the first identification code to the first transmitter device. The wireless presentation system as described in claim 1, wherein when the first transmission module transmits the first video data to the second transmission module, the receiver control unit sends a prompt command to request the first transmission module One of the transmitting end devices A pointing device displays the first identification image, wherein the first identification code is a personal information of a login user or a portrait of a user obtained by the information processing device executing a communication software. The wireless presentation system as described in item 1 of the scope of application, the wireless presentation system further comprises a second transmission end device, the second transmission end device comprises a second transmission end control unit and a third transmission module, the The second transmission-end control unit is used for receiving a second video data, and the third transmission module is used for transmitting the second video data; wherein, when the second transmission module and the third transmission module of the receiving device are When the group establishes a connection, the receiver control unit in the receiver device assigns a second identification code to the second transmitter device; wherein, when the third transmission module transmits the second video data to the second When the module is transmitted, the control unit at the receiving end synthesizes the second video data and a second identification image corresponding to the second identification code into a second composite video data, and the control unit at the receiving end synthesizes the first video data. The video data and the second composite video data are combined into a split-screen video data, and the split-screen video data is output to the display device. The wireless presentation system as described in claim 1, wherein when the first transmission module stops transmitting the first video data to the second transmission module, the receiver control unit cancels the first identification code and the The corresponding relationship of the first transmitting end device. The wireless presentation system as described in claim 4, wherein the first identification image is a first color, and when the receiver control unit requests the first transmitter device to display the first identification image, causing a first indicating device on the first transmitting end device to display the first color. A wireless briefing system, the wireless briefing system comprises: a first transmitting end device, the first transmitting end device transmits a first video data and a first identification code; a receiver device, the receiver device includes a receiver control unit, the receiver control unit synthesizes the first video data and a first identification image corresponding to the first identification code into a first composite video data, The receiving end control unit outputs the first composite video data to a display device; wherein, the source of the first video data is an information processing device, and the first transmitting end device is connected to the information processing device; wherein, The first transmission end device includes a first transmission end control unit and a first transmission module. The first transmission end control unit is used for receiving the first video data, and the first transmission module is used for transmitting the first transmission end. a video data; wherein the receiver device further includes a second transmission module for selectively establishing a connection with the first transmission module and receiving the first video data, when the second transmission module and the When the first transmission module establishes a connection, the first transmitting end device transmits the first identification code to the receiving end control unit. The wireless presentation system as described in claim 6, wherein the wireless presentation system further comprises a second transmission end device, and the second transmission end device comprises a second transmission end control unit and a third transmission module, The second transmitter control unit is used for receiving a second video data, and the third transmission module is used for transmitting the second video data; wherein, when the second transmission module of the receiver device and the third transmission When the module establishes a connection, the receiver control unit reads a second identification code of the second transmitter device; wherein, when the third transmission module transmits the second video data to the second transmission module When assembling, the receiver control unit synthesizes the second video data and a second identification image corresponding to the second identification code into a second composite video data, and the receiver control unit combines the first composite video data synthesized with this second The video data synthesizes a split-screen video data, and outputs the split-screen video data to the display device. When the second composite video data is displayed on the display device, the second composite video data corresponds to a second video area and a second identification area, the second video area is adjacent to the second identification area, the second video area displays the second video data, the second identification area displays the second identification image, wherein the first identification code A personal information of a login user or a portrait of a user obtained by executing a communication software for the information processing device. The wireless presentation system as described in claim 6, wherein the first identification code is selected from one of the group consisting of a hardware serial number, a user input information and a network address. The wireless presentation system as described in claim 6, wherein the information processing device executes an operating system. A wireless presentation system, the wireless presentation system includes: a first transmitter device, the first transmitter device includes a first transmitter control unit, the first transmitter control unit combines a first video data with a first A first identification image corresponding to the identification code is synthesized into a first synthesized video data, and the first transmission end device transmits the first synthesized video data; a second transmission end device, the second transmission end device includes a second transmission end device A transmission-end control unit, the second transmission-end control unit synthesizes a second video data and a second identification image corresponding to a second identification code into a second composite video data, and the second transmission-end device transmits the first two composite video data; and a receiver device, comprising a receiver control unit, the receiver control unit receives the first composite video data and the second composite video data, and combines the first composite video data The video data and the second composite video data synthesize a split-screen video data, and output the split-screen video data to a display device; wherein, the source of the first video data is a first information processing device, the second The source of the video data is a second information processing device, the first transmission end device is connected to the first information processing device, the second transmission end device is connected to the second information processing device, and the first transmission end device is connected to the second information processing device. A first transmission module is used to transmit the first video data, a second transmission module of the receiver device is used to selectively establish a connection with the first transmission module and receive the first video data, the A third transmission module of the second transmitter device is used to transmit the second video data, and the second transmission module of the receiver device is used to selectively establish a connection with the third transmission module and receive the For the second video data, the first transmitting end device generates the first identification image corresponding to the first identification code, and the second transmitting end device generates the second identification image corresponding to the second identification code. The wireless presentation system as described in claim 1, 6 or 10, wherein when the first composite video data is displayed on the display device, the first composite video data corresponds to a first video area and a a first identification area, the first video area is adjacent to the first identification area, the first video area displays the first video data, the first identification area displays the first identification image, wherein the first identification code is the The information processing device executes a communication software and obtains personal information of a logged-in user or a portrait of the user. A wireless presentation system, the wireless presentation system comprising: a first transmitting end device, comprising: a first transmission end control unit for receiving a first video data; a first transmission module for transmitting the first video data; a second transmission end device, the second transmission end device includes a first transmission end device Two transmitter control units and a third transmission module, the second transmitter control unit is used for receiving a second video data, the third transmission module is used for transmitting the second video data; and a receiver device, It is coupled to a display device, including: a second transmission module for selectively establishing a connection with the first transmission module and receiving the first video data, wherein the second transmission module is used for selectively establish a connection with the third transmission module and receive the second video data; and a receiver control unit for outputting the first video data to the display device, when the first video data is displayed in the In the display device, the first video data corresponds to a first video area, and the receiver control unit receives a user-operated position provided by a user input device; wherein, when the receiver control unit determines the When the position operated by the user is located in the first video area, the receiver control unit sends a prompt command to the first transmitter device, so that the first transmitter device sends a first instruction signal. The wireless presentation system as described in claim 12, wherein the receiver control unit is further configured to output the second video data to the display device, and when the second video data is displayed on the display device, the The second video information corresponds to a second video area, and the first video area and the second video area are displayed in a split-screen manner; wherein, when the receiver control unit determines that the position operated by the user is located in the second video area When in the area, the receiving end control unit sends the prompt command to the second transmitting end device, so that the second transmitting end device sends a second indication signal, and the second indication signal is different from the first indication signal.

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