A / v transmission device and wireless display system

Abstract

To propose an A / V (Audio / Video) transmission device.SOLUTION: An A / V transmission device includes: a compression chip for compressing A / V data; an RF transmitting interface including a plurality of transmitting antennas and for transmitting the compressed A / V data to an A / V receiving device; and a processor for acquiring an installation direction of an A / V transmitting device, acquiring a wireless quality state between the A / V transmission device and the A / V receiving device, generating a guide for adjusting directions of the plurality of transmitting antennas based on the installation direction of the A / V transmitting device and the wireless quality state, and transmitting the generated guide to the A / V receiving device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a wireless display system that wirelessly transmits and receives A / V data.

[0002] Related Art This application claims priority under Article 4 of the Paris Convention based on Korean Patent Application No. 10-2023-0076136 (filing date: June 14, 2023; DAS code: A112), and the present invention is based on the contents disclosed in that Korean patent application. For reference, the contents of the specification, claims and drawings of that Korean patent application are incorporated herein by reference. [Background technology]

[0003] Digital TV services using wired or wireless communication networks are becoming popular and can provide a variety of services that could not be provided by the existing analog broadcasting services.

[0004] For example, IPTV (Internet Protocol Television) and smart TV services, which are types of digital TV services, provide bidirectionality that allows users to actively select the type of program they want to watch, the viewing time, etc. Based on this bidirectionality, IPTV and smart TV services can also provide various additional services, such as internet search, home shopping, online games, etc.

[0005] Recently, TV services have been provided using a wireless system in which an A / V transmission device transmits compressed A / V (Audio / Video) signals to an A / V receiving device via a wireless connection, and the A / V receiving device restores and outputs the compressed A / V signals.

[0006] In the case of a wireless system, since RF (Radio Frequency) communication is performed between an A / V transmitting device and an A / V receiving device through an antenna, the positional relationship between the transmitting antenna and the receiving antenna is important for wireless quality.

[0007] Generally, an A / V transmission device is located in front of an A / V receiving device, but depending on the direction in which the transmitting antenna of the A / V transmission device is placed, there are cases in which the signal is transmitted via a side antenna.

[0008] In this case, since the signal strength is weak, the signal strength can be improved by increasing the number of operating transmitting antennas of the A / V transmission device, but this increases the power consumption.

[0009] In addition, in the conventional technology, in the process of responding to the customer's user installation environment, the user log is extracted and analyzed, and the response is guided by the SVC (Service Center).

[0010] However, by visiting the consumer's home to check the installation environment and changing the wireless settings to the optimal conditions or by providing an installation guide through a consumer connection, inconveniences may arise due to changes in the initial installation environment or box position. Summary of the Invention [Problem to be solved by the invention]

[0011] An object of the present disclosure is to provide a guide for setting up an optimal wireless environment with only the input of the installation direction of an A / V transmission device.

[0012] An object of the present disclosure is to provide a guide for easily and simply providing a wireless installation environment by utilizing user log information according to the installation environment. [Means for solving the problem]

[0013] [One aspect of the present invention] In one embodiment of the present invention, the following invention is proposed. [1] An A / V (Audio / Video) transmission device, a compression chip to compress A / V data; Multiple transmit antennas; an RF transmission interface for transmitting the compressed A / V data to an A / V receiving device; a processor that acquires an installation direction of the A / V transmitting device, acquires a wireless quality state between the A / V transmitting device and the A / V receiving device, generates a guide for adjusting directions of the plurality of transmitting antennas based on the installation direction of the A / V transmitting device and the wireless quality state, and transmits the generated guide to the A / V receiving device. [2] The A / V transmission device according to [1], wherein the processor receives information regarding an installation direction of the A / V transmitting device from the A / V receiving device. [3] The A / V transmission device described in [2], wherein when the processor determines that the wireless quality state is not a preset quality state, the processor transmits the guide to the A / V receiving device to adjust one or more of the vertical or horizontal directions of the multiple transmitting antennas. [4] The A / V transmission device described in [1], wherein the processor generates the guide based on the installation direction of the A / V transmission device, the wireless quality status, and antenna usage information for multiple receiving antennas included in the A / V receiving device. [5] The A / V transmission device described in [4], wherein the processor generates the guide to rotate the multiple transmitting antennas to the left when the installation direction of the A / V transmission device is forward, the wireless quality state is not in a preset state, and a right side antenna group of the multiple receiving antennas is used. [6] The A / V transmission device of [4], wherein the processor receives the antenna usage information from the A / V receiving device via the RF transmission interface. [7] a sliding button for moving the plurality of transmitting antennas in an up and down direction; The A / V transmission device described in [1], further comprising a dial for rotating the multiple transmitting antennas left and right. [8] The processor, Transmit user log information to the server, receiving feedback information generated based on user log information from the server; generating a direction adjustment guide for adjusting directions of the plurality of transmitting antennas based on the received feedback information; The A / V transmission device described in [1] transmits the generated direction adjustment guide to the A / V receiving device. [9] The user log information includes at least one of transmission log information and reception log information, The transmission log information includes at least one of an installation direction of the A / V transmission device, a beam direction of a transmission antenna, a number of transmission antennas in use (number of ON antennas), identification information of a used transmission antenna, or a wireless quality value; The A / V transmission device described in [8], wherein the reception log information includes one or more of the beam direction of the receiving antenna of the A / V receiving device, the number of receiving antennas in use (number ON), identification information of the receiving antenna used, or the wireless quality value.

[10] The A / V transmission device according to [9], wherein the feedback information includes information for resetting an installation direction of the A / V transmission device.

[11] The A / V transmission device described in

[10] , wherein the processor generates a reconfiguration guide for reconfiguring the installation direction of the A / V transmission device based on the feedback information, and transmits the generated reconfiguration guide to the A / V receiving device.

[12] The processor, Transmit user log information to the server, receiving feedback information generated based on user log information from the server; The A / V transmission device according to [9], wherein the feedback information includes information indicating the presence of an obstacle between the A / V transmission device and the A / V receiving device.

[13] The A / V transmission device according to [1], wherein the installation direction of the A / V transmitting device is one of the bottom surface direction, the front direction, and the side direction of the display provided on the A / V receiving device.

[14] An A / V (Audio / Video) receiving device, display; an RF receive interface including a plurality of receive antennas and configured to receive compressed A / V data from an A / V transmission device; a decompression chip for decompressing the compressed A / V data; a microcomputer that displays on the display a setting screen for setting an installation direction of the A / V transmitting device, acquires information on the installation direction selected by a direction selection input received via the setting screen, acquires a wireless quality state between the A / V transmitting device and the A / V receiving device, and displays on the display a guide for adjusting directions of the plurality of transmitting antennas generated based on the installation direction of the A / V transmitting device and the wireless quality state.

[15] 1. A wireless display system, comprising: The system comprises an A / V (Audio / Video) transmission device and an A / V receiving device having a display, The A / V transmission device Obtaining the installation direction of the A / V transmitting device; Acquiring a wireless quality state between the A / V transmitting device and the A / V receiving device; generating a guide for adjusting directions of a plurality of transmitting antennas included in the A / V transmission device based on an installation direction of the A / V transmission device and the wireless quality state; Transmitting the generated guide to the A / V receiving device; The A / V receiving device displays the received guide in a wireless display system.

[0014] An A / V (Audio / Video) transmission device according to an embodiment of the present disclosure may include (have; configure; construct; configure; encompass; contain; contain) a compression chip that compresses A / V data, an RF transmission interface including multiple transmitting antennas that transmits the compressed A / V data to an A / V receiving device, and a processor that obtains an installation direction of the A / V transmitting device, obtains a wireless quality state between the A / V transmitting device and the A / V receiving device, generates a guide for adjusting directions of the multiple transmitting antennas based on the installation direction of the A / V transmitting device and the wireless quality state, and transmits the generated guide to the A / V receiving device.

[0015] An A / V (Audio / Video) receiving device according to an embodiment of the present disclosure may include a display, an RF receiving interface including a plurality of receiving antennas, receiving compressed A / V data from an A / V transmitting device, a restoration chip for restoring the compressed A / V data, and a microcomputer for displaying a setting screen for setting an installation direction of the A / V transmitting device on the display, acquiring information on the installation direction selected by a direction selection input received via the setting screen, acquiring a wireless quality status between the A / V transmitting device and the A / V receiving device, and displaying a guide for adjusting the directions of the plurality of transmitting antennas on the display, which is generated based on the installation direction of the A / V transmitting device and the wireless quality status.

[0016] In a wireless display system including an A / V (Audio / Video) transmission device and an A / V receiving device having a display according to an embodiment of the present disclosure, the A / V transmission device acquires an installation direction of the A / V transmission device, acquires a wireless quality state between the A / V transmission device and the A / V receiving device, generates a guide for adjusting the directions of a plurality of transmitting antennas included in the A / V transmission device based on the installation direction of the A / V transmission device and the wireless quality state, transmits the generated guide to the A / V receiving device, and the A / V receiving device displays the received guide. Effect of the Invention

[0017] According to an embodiment of the present disclosure, even if a user is using a wireless display system for the first time, a guide for an optimal wireless environment can be provided through an input for selecting only the direction in which an A / V transmission device is installed. According to an embodiment of the present disclosure, a proactive installation environment can be guided by using user log information according to the installation environment, and a real-time guide can be provided to the user in an interactive manner, thereby making it possible to easily and simply provide a wireless installation environment for the user.

[0018] In addition, even if the user moves the location of the A / V transmission device or the wireless installation environment is changed, the user can easily adjust the antenna by providing an optimization guide via the network. [Brief description of the drawings]

[0019] [Figure 1] 1 is a diagram illustrating a configuration of a display system according to an embodiment of the present disclosure. [Diagram 2] 1 is a diagram illustrating a configuration of a display system according to an embodiment of the present disclosure. [Diagram 3] 1 is a block diagram illustrating a configuration of a remote control device according to an embodiment of the present disclosure. [Figure 4a] FIG. 2 is a perspective view of an A / V transmission device. [Figure 4b] 1 is a diagram illustrating the internal structure of an A / V transmission device. [Figure 4c] 1 is a diagram illustrating an RF receiving interface of an A / V receiving device. [Diagram 5] 1 is a ladder diagram for explaining a method of operation of a wireless display system according to an embodiment of the present disclosure. [Figure 6] 1 is a diagram illustrating a setting screen according to an embodiment of the present disclosure. [Figure 7] 11 is a diagram illustrating an example of displaying a direction setting guide based on usage information of a receiving antenna according to an embodiment of the present disclosure. [Figure 8] 11 is a diagram illustrating an example of displaying a direction setting guide based on usage information of a transmitting antenna according to an embodiment of the present disclosure. [Figure 9] 1 is a flowchart illustrating an operation method of an A / V receiving device according to an embodiment of the present disclosure. [Figure 10] 11 is a ladder diagram for explaining a method of operation of a wireless display system according to yet another embodiment of the present disclosure. [Figure 11a] 13 is an example of transmission log information when the installation direction of the A / V transmission device is selected to be the front direction. [Figure 11b] 13 is an example of reception log information when the installation direction of the A / V transmission device is selected to be the front direction. [Figure 12a] 13 is yet another example of transmission log information when the installation direction of the A / V transmission device is selected to be the front direction. [Figure 12b] 13 is yet another example of reception log information when the installation direction of the A / V transmission device is selected to be the front direction. [Figure 13a] 11 is a diagram illustrating an example in which a direction adjustment guide is provided according to feedback information generated based on user log information. [Figure 13b] 11 is a diagram illustrating an example of providing a reset guide for resetting an installation direction of an A / V transmission device according to feedback information generated based on user log information. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] A video / audio (hereinafter, A / V) transmission device according to an embodiment of the present disclosure is, for example, an intelligent device that adds computer-assisted functions to a broadcast receiving function, and while enhancing the broadcast receiving function, it can also add Internet functions, etc., and have an interface that is more convenient to use than a handwritten input device, a touch screen, or a spatial remote control, etc.

[0021] In addition, by connecting to the Internet and a computer through wired or wireless Internet functions, it is possible to perform functions such as e-mail, web browsing, banking, games, etc. A standardized general-purpose OS can be used for such various functions.

[0022] Therefore, the A / V transmission device described in this disclosure allows a variety of applications to be freely added or deleted on, for example, a general-purpose OS kernel, so that a variety of user-friendly functions can be executed.

[0023] 1 and 2 are diagrams illustrating a configuration of a wireless display system according to an embodiment of the present disclosure.

[0024] Referring to FIG. 1, a wireless display system 1 according to an embodiment of the present disclosure includes an A / V transmitting device 100 and an A / V receiving device 200.

[0025] The wireless display system 1 may be a system in which an A / V transmission device 100 wirelessly transmits A / V data to an A / V receiving device 200, and the A / V receiving device 200 outputs the A / V data.

[0026] The A / V transmission device 100 may be a device capable of encoding video and audio and wirelessly transmitting the encoded video and audio content.

[0027] The A / V transmission device 100 may be a set-top box.

[0028] The A / V transmission device 100 is connected to an external device such as a set-top box or a USB memory, and can transmit a video signal or an audio signal received from the connected external device to the A / V receiving device 200.

[0029] The A / V receiving device 200 may be a display device capable of wirelessly receiving encoded video and audio and decoding the received video and audio.

[0030] The A / V transmitting device 100 and the A / V receiving device 200 can form a video wall display system.

[0031] In a video wall, the thin bezel of the display plays an important role in visualizing the content image. Due to the thin bezel of the display, it is efficient to have only components that can perform the minimum role, and the circuits and components for the main functions are executed in a separate device.

[0032] The A / V transmission device 100 can determine the type of content video input from the outside and determine the compression rate of the content video based on the determined type. The compression rate of the content video can be defined as the ratio of the size of the video data before encoding to the size of the video data after encoding.

[0033] The content image type may include a still image type, a general video type, and a game video type.

[0034] The A / V transmission device 100 can compress the content video according to the determined compression ratio and transmit the compressed content video to the A / V receiving device 200 wirelessly.

[0035] The A / V receiving device 200 is capable of decompressing the compressed content video received from the A / V transmitting device 100 and displaying the decompressed content video on a display.

[0036] FIG. 2 is a block diagram illustrating the detailed configuration of A / V transmission device 100 and A / V receiving device 200. As shown in FIG.

[0037] Referring to FIG. 2, the A / V transmission device 100 may include a microphone 110, a wireless communication interface 120, a wired communication interface 130, a memory 140, a compression chip 150, an RF transmission interface 160, and a processor 190.

[0038] The microphone 110 can receive and transmit an audio signal to the processor 190 .

[0039] The microphone 110 can receive the voice spoken by the user.

[0040] The wireless communication interface 120 may include one or more of a Wi-Fi module, a Bluetooth module.

[0041] The Wi-Fi module can perform wireless communication with an external device or the A / V receiving device 200 according to the Wi-Fi standard.

[0042] The Bluetooth module can perform wireless communication according to the low-power Bluetooth (Bluetooth Low Energy, BLE) standard.

[0043] The Bluetooth module can perform wireless communication with an external device such as a remote control or the A / V receiving device 200 according to the low-power Bluetooth (Bluetooth Low Energy, BLE) standard.

[0044] The wireless communication interface 120 may also include a tuner for receiving broadcast signals.

[0045] The wired communication interface 130 may be an interface for wired connection to an external device, and may include a plurality of HDMI (High Definition Multimedia Interface: registered trademark) terminals or USB (Universal Serial Bus) ports.

[0046] The wired communication interface 130 can receive a video signal or an audio signal from an external device.

[0047] The memory 140 can store programs for signal processing and control, and can store processed video, audio, or data signals.

[0048] The memory 140 can function as a temporary storage of video, audio, or data signals input from the outside, and can store information about a predetermined image through a channel storage function.

[0049] The compression chip 150 can compress an externally input video signal or audio signal and transmit the compressed signal to the RF transmission interface 160 .

[0050] The compression chip 150 may include an encoder for compressing the video or audio signals.

[0051] The RF transmission interface 160 can transmit the A / V signal to the RF reception interface 240 of the A / V receiving device 200 through RF (Radio Frequency) communication.

[0052] The RF transmit interface 160 may include one or more antennas.

[0053] The RF transmitting interface 160 can transmit the compressed A / V signal in digital form to the RF receiving interface 240 .

[0054] The RF transmit interface 160 can transmit A / V signals to the RF receive interface 240 over one or more channels.

[0055] The processor 190 can generally control the operation of the A / V transmission device 100. The processor 190 can be called a Main System on Chip (Main SoC).

[0056] The processor 190 may also include a compression chip 150 .

[0057] The A / V receiving device 200 may include a wireless communication interface 210 , a wired communication interface 220 , an RF receiving interface 240 , a memory 250 , a display 260 , a speaker 270 , a restoration chip 280 and a microcomputer 290 .

[0058] The wireless communication interface 210 may include a Wi-Fi module, a Bluetooth module, and an IR module.

[0059] The Wi-Fi module is capable of wireless communication according to the Wi-Fi standard.

[0060] The Wi-Fi module can perform wireless communication with an external device or the A / V transmission device 100 according to the Wi-Fi standard.

[0061] The Bluetooth module can perform wireless communication according to the low-power Bluetooth (Bluetooth Low Energy, BLE) standard.

[0062] The Bluetooth module can perform wireless communication with an external device such as a remote control or the A / V transmission device 100 according to the low-power Bluetooth (Bluetooth Low Energy, BLE) standard.

[0063] The IR module can receive signals from a remote control 300, which will be described later, through IR (InfraRed) communication.

[0064] The wired communication interface 220 may be an interface for wired connection to an external device. The wired communication interface 220 may include a plurality of HDMI (High Definition Multimedia Interface: registered trademark) terminals or USB (Universal Serial Bus) ports.

[0065] The wired communication interface 220 can receive video or audio signals from an external device.

[0066] The RF receive interface 240 can receive the compressed A / V signal from the RF transmit interface 160 .

[0067] The RF receiving interface 240 may include multiple antennas. The RF receiving interface 240 is disposed at the bottom edge of the display 260.

[0068] The RF receiving interface 240 may include a first antenna module and a second antenna module, each of which may include multiple antennas.

[0069] The RF receiving interface 240 can receive the compressed A / V signal in digital form from the RF transmitting interface 160 and transfer the received A / V signal to the decompression chip 280 .

[0070] The memory 250 stores programs for signal processing and control, and can store processed video, audio, or data signals.

[0071] The display 260 can display the video signal received from the microcomputer 290 .

[0072] The display 260 can display a video signal when driven by a timing controller (not shown).

[0073] The decompression chip 280 can decompress the compressed A / V signal received by the RF receiving interface 240. To this end, the decompression chip 280 can include a decoder.

[0074] The microcomputer 290 can control the overall operation of the A / V receiving device 200 .

[0075] The microcomputer 290 can output the restored video signal via the display 260 and the restored audio signal via the speaker 270 .

[0076] FIG. 3 is a block diagram illustrating a configuration of a remote control device according to an embodiment of the present disclosure.

[0077] Referring to FIG. 3, the remote control device 300 may include a wireless communication interface 310 , a user input interface 330 , a memory 350 and a controller 390 .

[0078] The wireless communication interface 310 may be an interface for performing wireless communication with the A / V transmission device 100 or the A / V receiving device 200 .

[0079] The wireless communication interface 310 may include a Bluetooth Low Energy (BLE) module 311 and an IR (InfraRed) module 313.

[0080] The BLE module 311 can transmit a signal to the A / V transmission device 100 for controlling the operation of the A / V transmission device 100.

[0081] The BLE module 311 can transmit a signal to the A / V transmission device 100 that triggers a pairing operation of the A / V transmission device 100.

[0082] The user input interface 330 may consist of a keypad, buttons, a touchpad, a touch screen, or the like.

[0083] The user input interface 330 can generate control commands for controlling the operation of the A / V transmission device 100 or the A / V receiving device 200 in response to an operational command from a user.

[0084] When the user input interface 330 includes hardkey buttons, the user can operate the hardkeys by pushing the hardkey buttons.

[0085] The user input interface 330 can include various types of input means that can be operated by the user, such as a scroll key, a jog key, and the like.

[0086] The memory 350 can store programs for the operation of the controller 390, and can also temporarily store input and output data.

[0087] The controller 390 controls application related operations and generally the overall operation of the remote control device 300 .

[0088] FIG. 4a is a perspective view of an A / V transmission device, FIG. 4b is a diagram illustrating the internal structure of the A / V transmission device, and FIG. 4c is a diagram illustrating the RF receiving interface of an A / V receiving device.

[0089] Referring to FIG. 4 a , the A / V transmission device 100 may include a box 410 , a sliding button receiving portion 401 that receives a sliding button 401 a , a dial 403 , a power status display portion 405 , and a communication quality status display portion 407 .

[0090] The box 410 may include the components of the A / V transmission device 100 described in FIG. 2. The box 410 may be a housing that includes the components of the A / V transmission device 100 described in FIG.

[0091] The sliding button 401a may be a means for vertical control (tilting control) of the RF transmission interface 160 shown in FIG. 4b.

[0092] Dial 403 may be a means for controlling the horizontal rotational orientation (panning control) of RF transmission interface 160 shown in FIG. 4b.

[0093] The power status indicator 405 can indicate the on or off state of the power of the A / V transmission device 100. The power status indicator 405 can include one or more LEDs.

[0094] The communication quality status display unit 407 can display the communication quality status between the A / V transmission device 100 and the A / V receiving device 200. The communication quality status display unit 407 can include one or more LEDs.

[0095] The communication quality status display unit 407 may not be provided in the box 410 as an optional configuration.

[0096] The processor 190 can receive pointing correction input via the sliding button 401 a or the dial 403 .

[0097] The processor 190 can tilt the RF transmission interface 160 including the transmission antenna in the up and down directions in response to an input of moving the sliding button 401a.

[0098] The RF transmission interface 160 may include a substrate and multiple transmission antennas. The RF transmission interface 160 may be provided on the top of a heat sink 611 for dissipating heat generated inside the box 410.

[0099] The processor 190 can rotate or pan the RF transmission interface 160 including the transmitting antenna left and right in response to an input moving the dial 403 .

[0100] A user can perform an antenna pointing correction operation by operating the sliding button 401a or the dial 403 while looking at the antenna guide used to adjust the direction of the transmitting antenna.

[0101] According to yet another embodiment of the present disclosure, box 410 may further include a motor (not shown) for automatically controlling tilting of RF transmission interface 160 in response to information regarding the determined vertical correction angle, and a motor (not shown) for automatically controlling panning of RF transmission interface 160 in response to information regarding the determined horizontal correction angle.

[0102] In this case, the RF transmission interface 160 can be set to have an optimal arrangement structure without a separate guide, maximizing user convenience.

[0103] Referring to FIG. 4c, an RF receiving interface 240 may be provided at the bottom of a display 260 of an A / V receiving device 200.

[0104] The RF receiving interface 240 includes multiple receiving antennas and receives A / V data from the A / V transmission device 100 .

[0105] The RF receiving interface 240 may include a front antenna group 241 facing the front, a bottom antenna group 243 facing the bottom, a left side antenna group 245 facing the left side, and a right side antenna group 247 facing the right side.

[0106] The number of antennas may decrease in the order of the front antenna group 241, the bottom antenna group 243, the left side antenna group 245, and the right side antenna group 247.

[0107] FIG. 5 is a ladder diagram for explaining a method of operation of a wireless system according to an embodiment of the present disclosure.

[0108] The microcomputer 290 of the A / V receiving device 200 displays on the display 260 a setting screen for selecting the installation direction of the A / V transmitting device 100 (S501).

[0109] In one embodiment, the installation direction of the A / V transmission device 100 may be the direction in which it is placed in a relative positional relationship with the A / V receiving device 200 .

[0110] The A / V transmission device 100 may be installed at any one of the bottom end, side, and front of the display 260 of the A / V receiving device 200 .

[0111] FIG. 6 is a diagram illustrating a setting screen according to an embodiment of the present disclosure.

[0112] Referring to FIG. 6, the display 260 of the A / V receiving device 200 displays a setting screen 600 for selecting the installation direction of the A / V transmitting device 100.

[0113] The setting screen 600 may be a screen for setting the direction in which the A / V transmission device 100 (box) is installed in relation to the A / V receiving device 200.

[0114] The settings screen 600 may include a direction item list 610 including a first setting item 611 representing the bottom edge of the display 260, a second setting item 612 representing the side of the display 260, and a third setting item 613 representing the front of the display 260.

[0115] FIG. 5 will be described again.

[0116] The microcomputer 290 of the A / V receiving device 200 receives a direction selection input indicating the installation direction of the A / V transmission device 100 (S503), and can transmit information regarding the installation direction of the A / V transmission device 100 selected by the direction selection input to the RF transmitting interface 160 of the A / V transmission device 100 via the RF receiving interface 240 (S504).

[0117] The microcomputer 290 can receive a direction selection input from a remote control 300 .

[0118] The microcomputer 290 can receive a direction selection input for selecting one of the first to third setting items 511, 512, and 513 as shown in FIG.

[0119] The microcomputer 290 can transmit information regarding the installation direction of the A / V transmission device 100 to the RF receiving interface 240 of the A / V receiving device 200 via the RF transmitting interface 160 in response to the direction selection input.

[0120] The processor 190 of the A / V transmission device 100 can generate a guide for adjusting the direction of the transmitting antenna based on the received information on the installation direction and the wireless quality state.

[0121] The processor 190 of the A / V transmission device 100 can acquire the wireless quality state between the A / V transmission device 100 and the A / V receiving device 200 (S505).

[0122] In one embodiment, the wireless quality status may represent the strength of the signal that RF receive interface 240 of A / V receive device 200 receives from RF transmit interface 160 .

[0123] The wireless quality status includes a number of quality statuses, which may include good, fair, poor, and lost.

[0124] The radio quality condition is determined by one or more of a Received Signal Strength Indicator (RSSI) or a compression ratio.

[0125] The microcomputer 290 or the restoration chip 280 of the A / V receiving device 200 can measure the RSSI of the wireless signal received by the RF receiving interface 240 from the RF transmitting interface 160 .

[0126] The microcomputer 290 or the restoration chip 280 of the A / V receiving device 200 can transmit the measured RSSI to the RF receiving interface 240 via the RF transmitting interface 160 .

[0127] The processor 190 or the compression chip 150 of the A / V transmission device 100 can obtain the radio quality status based on the received RSSI.

[0128] The processor 190 or compression chip 150 of the A / V transmission device 100 can determine the wireless quality state as good when the RSSI is in a first strength range, determine the wireless quality state as normal when the RSSI is in a second strength range smaller than the first strength range, and determine the wireless quality state as weak when the RSSI is in a third strength range smaller than the second strength range.

[0129] If the processor 190 or compression chip 150 of the A / V transmission device 100 fails to receive RSSI for a preset time, it can determine that the wireless quality state is a disconnected state (or a disconnected state).

[0130] The processor 190 or the compression chip 150 of the A / V transmission device 100 can acquire the wireless quality status based on the compression ratio of the wireless data. The compression ratio can have a real value between 0 and 1 as a ratio between the size of the compressed data and the size of the original data.

[0131] The processor 190 or the compression chip 150 of the A / V transmission device 100 can determine the wireless quality state to be good when the compression rate of data transmitted through the RF transmission interface 160 is in a first ratio range, determine the wireless quality state to be normal when the compression rate is in a second ratio range smaller than the first ratio range, and determine the wireless quality state to be weak when the compression rate is in a third ratio range smaller than the second ratio range.

[0132] The processor 190 of the A / V transmission device 100 may determine whether the acquired wireless quality state is a preset quality state (S507), and if it is determined that the acquired wireless quality state is a preset quality state, may transmit wireless quality state information to the RF receiving interface 240 of the A / V receiving device 200 via the RF transmitting interface 160 (S509).

[0133] In one embodiment, the pre-defined quality state may be a good state.

[0134] In yet another embodiment, the pre-defined quality status may be one of a good status or a fair status.

[0135] The wireless quality status information may include information on a pre-defined quality status.

[0136] The microcomputer 290 of the A / V receiving device 200 can output the received wireless quality status information on the display 260 (S511).

[0137] The microcomputer 290 can display the wireless quality status information received from the RF transmission interface 160 on the display 260 .

[0138] The user can recognize that the wireless connection environment between the A / V transmitting device 100 and the A / V receiving device 200 is good due to the good condition included in the displayed wireless quality status information.

[0139] If the processor 190 of the A / V transmission device 100 determines that the acquired wireless quality state is not a preset quality state, the processor 190 may generate a direction setting guide for adjusting the direction of one or more transmitting antennas of the A / V transmission device 100 (S513).

[0140] The direction setting guide may be a guide for adjusting one or more of the tilting degree and the panning degree of the transmitting antenna provided in the RF transmitting interface 160 .

[0141] That is, the direction setting guide may be a guide for adjusting at least one of the up-down direction and the left-right direction of the transmitting antenna provided in the RF transmitting interface 160.

[0142] Orientation guides may be generated in audio, image or video form.

[0143] The orientation guide may be a guide for adjusting the orientation of the transmitting antenna via one or more of the sliding button 401 a or the dial 403 .

[0144] In one embodiment, the processor 190 or compression chip 150 may generate a steering guide if the acquired radio quality conditions are determined to be poor.

[0145] In yet another embodiment, the processor 190 or compression chip 150 can generate a direction setting guide for adjusting the direction of the transmitting antenna based on the installation direction of the A / V transmission device 100, the radio quality conditions, and antenna usage information for the receiving antenna.

[0146] The antenna usage information may include information indicating which of a plurality of receiving antennas provided in the RF receiving interface 240 is being used.

[0147] The antenna usage information may include identification of one or more receiving antennas in use among multiple receiving antennas included in the RF receiving interface 240.

[0148] The A / V transmission device 100 can receive antenna usage information from the A / V receiving device 200. For example, the processor 190 or the compression chip 150 can generate a direction setting guide to rotate the transmitting antenna to the left when the installation direction of the A / V transmission device 100 is forward, the wireless quality state is normal, and the right side antenna group 247 of the RF receiving interface 240 is used.

[0149] Meanwhile, the compression chip 150 may generate information for adjusting the direction of the transmitting antenna based on the wireless quality state, and transmit the generated information to the processor 190. The information for adjusting the direction may include one or more of a tilting angle or a panning angle of the transmitting antenna.

[0150] In this case, the processor 190 may generate an orientation guide based on the communicated information.

[0151] In yet another embodiment, the compression chip 150 can generate the orientation guides directly to overcome storage limitations of the processor 190 .

[0152] The processor 190 of the A / V transmission device 100 may transmit the generated guide to the RF receiving interface 240 of the A / V receiving device 200 via the RF transmitting interface 160 (S515).

[0153] The microcomputer 290 of the A / V receiving device 200 can output the received direction setting guide on the display 260 (S517).

[0154] FIG. 7 is a diagram illustrating an example of displaying a direction setting guide based on usage information of a receiving antenna according to an embodiment of the present disclosure.

[0155] Referring to FIG. 7, the A / V transmission device 100 can generate a direction setting guide that moves the transmitting antenna to the left when the installation direction of the A / V transmission device 100 is forward, the wireless quality condition is normal, and the right side antenna group 247 of the RF receiving interface 240 is used.

[0156] The A / V transmission device 100 can transmit the generated orientation guide to the A / V receiving device 200 .

[0157] The A / V receiving device 200 can display the received orientation guide 700 on the display 260 as shown in FIG.

[0158] Orientation guide 700 may include text that instructs adjusting dial 403 to move the transmit antenna in a leftward direction.

[0159] The direction setting guide 700 may further include information regarding the wireless quality state between the A / V transmitting device 100 and the A / V receiving device 200 .

[0160] In this manner, according to an embodiment of the present disclosure, even a user who is using a wireless display system for the first time can be guided to the optimal wireless environment through an input that selects only the direction in which the A / V transmission device 100 is installed.

[0161] On the other hand, according to yet another embodiment of the present disclosure, even if the wireless quality state is good, a direction setting guide can be provided based on the usage information of the transmitting antenna and the usage information of the receiving antenna. FIG. 8 is a diagram illustrating an example of displaying a direction setting guide based on usage information of a transmitting antenna according to an embodiment of the present disclosure.

[0162] FIG. 8 shows an embodiment that embodies step S513 in FIG.

[0163] In FIG. 8, it is assumed that the wireless quality between A / V transmission device 100 and A / V receiving device 200 is good.

[0164] The processor 190 of the A / V transmission device 100 may obtain identification information of one or more transmission antennas used to transmit A / V data among a plurality of transmission antennas included in the RF transmission interface 160.

[0165] A transmitting antenna used for transmitting A / V data may be in an ON state, and a transmitting antenna not used for transmitting A / V data may be in an OFF state.

[0166] The processor 190 of the A / V transmission device 100 can obtain the number of turned-on transmitting antennas based on the obtained identification information.

[0167] When the number of transmitting antennas turned on is equal to or greater than a preset number, the processor 190 of the A / V transmission device 100 can determine the direction of the transmitting antennas such that only transmitting antennas less than the preset number are turned on while maintaining good wireless quality.

[0168] The processor 190 of the A / V transmission device 100 may generate an orientation guide including the determined orientation of the transmitting antenna, and may transmit the generated orientation guide to the A / V receiving device 200.

[0169] Referring to FIG. 8, the A / V receiving device 200 can display the received orientation guide 800 on the display 260 .

[0170] The orientation guide 800 may include text that instructs adjusting the sliding button 401a to move the transmit antenna orientation upwards.

[0171] The direction setting guide 800 may further include information on wireless quality conditions.

[0172] In this manner, according to the embodiment of the present disclosure, the number of transmitting antennas used is minimized while maintaining good wireless quality, thereby providing an optimal wireless environment while simultaneously reducing power consumption.

[0173] FIG. 9 is a flowchart illustrating an operation method of an A / V receiving device according to an embodiment of the present disclosure.

[0174] 9, the microcomputer 290 of the A / V receiving device 200 displays a setting screen for selecting the installation direction of the A / V transmitting device 100 on the display 260 (S901).

[0175] The setting screen is as shown in FIG.

[0176] The microcomputer 290 of the A / V receiving device 200 receives a direction selection input indicating the installation direction of the A / V transmission device 100 (S903), and acquires information regarding the installation direction of the A / V transmission device 100 selected by the direction selection input (S905).

[0177] The microcomputer 290 can receive a direction selection input from a remote control 300 .

[0178] The microcomputer 290 of the A / V receiving device 200 can acquire the wireless quality status between the A / V transmitting device 100 and the A / V receiving device 200 (S907).

[0179] In one embodiment, the wireless quality status may represent the strength of the signal that RF receive interface 240 of A / V receive device 200 receives from RF transmit interface 160 .

[0180] The wireless quality status includes a number of quality statuses, which may include good, fair, poor, and lost.

[0181] The radio quality condition is determined by the Received Signal Strength Indicator (RSSI).

[0182] The microcomputer 290 or the restoration chip 280 of the A / V receiving device 200 can measure the RSSI of the wireless signal received by the RF receiving interface 240 from the RF transmitting interface 160 .

[0183] The microcomputer 290 or the restoration chip 280 of the A / V receiving device 200 can obtain the wireless quality status based on the measured RSSI.

[0184] The microcontroller 290 or the restoration chip 280 of the A / V receiving device 200 can determine that the wireless quality state is good when the RSSI is in a first intensity range, can determine that the wireless quality state is normal when the RSSI is in a second intensity range smaller than the first intensity range, and can determine that the wireless quality state is weak when the RSSI is in a third intensity range smaller than the second intensity range.

[0185] If the microcomputer 290 or the restoration chip 280 of the A / V receiving device 200 does not receive the RSSI for a preset time, it can determine that the wireless quality state is a disconnected state (or a disconnected state).

[0186] The microcomputer 290 of the A / V receiving device 200 can determine whether the acquired wireless quality state is a preset quality state (S909), and if it is determined that the acquired wireless quality state is a preset quality state, outputs wireless quality state information on the display 260 (S911).

[0187] If the microcontroller 290 of the A / V receiving device 200 determines that the acquired wireless quality state is not a preset quality state, it may generate a direction setting guide for adjusting the direction of one or more transmitting antennas of the A / V transmitting device 100 (S913).

[0188] The direction setting guide may be a guide for adjusting one or more of the tilting degree and the panning degree of the transmitting antenna provided in the RF transmitting interface 160 .

[0189] The orientation guide may be a guide for adjusting the orientation of the transmitting antenna via one or more of the sliding button 401 a or the dial 403 .

[0190] The microcomputer 290 of the A / V receiving device 200 can output the received direction setting guide on the display 260 (S517).

[0191] In this manner, according to an embodiment of the present disclosure, even a user who is using a wireless display system for the first time can be guided to the optimal wireless environment through an input that selects only the direction in which the A / V transmission device 100 is installed.

[0192] FIG. 10 is a ladder diagram illustrating a method of operation of a wireless display system according to yet another embodiment of the present disclosure.

[0193] FIG. 10 is a scenario that occurs after FIG. 5 or FIG.

[0194] The processor 190 of the A / V transmission device 100 can acquire user log information (S1001).

[0195] The user log information may include one or more of transmission log information or reception log information.

[0196] The transmission log information may include one or more of the installation direction of the A / V transmission device 100, the beam direction of the transmitting antenna, the number of transmitting antennas in use (number ON), identification information of the transmitting antennas used, or a wireless quality value (e.g., RSSI) measured between the A / V transmission device 100 and the A / V receiving device 200.

[0197] The beam direction of an antenna may include the transmission angle of a signal transmitted by a transmitting antenna.

[0198] The transmission log information may include one or more of identification information of the A / V transmission device 100 and user identification information. The device identification information may include a model name of the device. The user identification information may include an ID that can identify a user.

[0199] The reception log information may include one or more of the beam direction of the receiving antenna of the A / V receiving device 100, the number of receiving antennas in use (number ON), identification information of the receiving antennas used, or a wireless quality value (e.g., RSSI) measured between the A / V transmission device 100 and the A / V receiving device 200.

[0200] The beam direction of an antenna may include the reception angle of a signal received by a receiving antenna.

[0201] The reception log information may include one or more of identification information of the A / V receiving device 200 and user identification information. The device identification information may include a model name of the device. The user identification information may include an ID that can identify a user.

[0202] The processor 190 may generate user log information through the processes shown in FIGS. 5 and 9 and thereafter, and may store the generated user log information in the memory 140.

[0203] The processor 190 may store user log information in the memory 140 when the initial setup and use of the wireless display system is completed.

[0204] The A / V transmission device 100 and the A / V receiving device 200 can periodically share transmission log information and reception log information with each other.

[0205] The processor 190 of the A / V transmission device 100 can transmit the acquired user log information to the server 1000 via the wireless interface 120 (S1003).

[0206] The processor 190 can transmit the user log information to the server 1000 via Internet communication.

[0207] The server 1000 can generate feedback information based on the user log information (S1005), and can transmit the generated feedback information to the A / V transmission device 100 (S1007).

[0208] The server 1000 can analyze user log information and generate feedback information to improve wireless performance.

[0209] The server 1000 can determine whether the wireless performance is maintained at or above a preset performance level based on the user log information.

[0210] In one embodiment, the preset performance may be a preset compression rate of data.

[0211] In yet another embodiment, the pre-set performance may represent good wireless quality conditions.

[0212] If the wireless performance is equal to or greater than a preset performance, the server 1000 can generate feedback information indicating that the wireless performance is good.

[0213] The feedback information may include information for adjusting the direction of a transmitting antenna included in the RF transmission interface 160 .

[0214] The information for adjusting the direction of the transmitting antenna may include one or more of a tilting angle or a panning angle of the transmitting antenna.

[0215] The processor 190 of the A / V transmission device 100 may generate a direction adjustment guide for adjusting the direction of the transmission antenna of the RF transmission interface 160 based on the received feedback information (S1009).

[0216] The processor 190 may generate a direction adjustment guide based on information for adjusting the direction of the transmitting antenna included in the feedback information.

[0217] The direction adjustment guide may be an image that guides the adjustment direction of the transmitting antenna.

[0218] The processor 190 of the A / V transmission device 100 may transmit the generated direction adjustment guide to the A / V receiving device 200 via the RF transmission interface 160 (S1011).

[0219] The microcomputer 290 of the A / V receiving device 200 can output the received direction adjustment guide on the display 260 (S1013).

[0220] FIG. 11a is an example of transmission log information when the installation direction of the A / V transmission device is selected to be in the front direction, and FIG. 11b is an example of reception log information when the installation direction of the A / V transmission device is selected to be in the front direction.

[0221] 11a, there is shown transmission log information 1110. The transmission log information 1110 may include an item 1111 of the number of transmission antennas used (two antennas used), an item 1113 of the direction of the beam transmitted by the used transmission antenna (or the transmission angle), and an item 1115 of the compression ratio.

[0222] 11b, reception log information 1130 is illustrated. The reception log information 1130 may include an item 1131 of the number of receiving antennas used (two used) and an item 1133 of the direction of the beam received by the used receiving antenna (or receiving angle).

[0223] The server 1000 can determine that the transmitting antenna and the receiving antenna being used are opposite to each other based on the beam direction included in the transmission log information 1110 and the beam direction included in the reception log information 1130.

[0224] Also, if the compression ratio measured through the compression ratio item 1115 is equal to or greater than a preset ratio (eg, 25), the server 1000 can determine that the wireless performance is equal to or greater than the preset performance.

[0225] When the transmitting antenna and the receiving antenna face each other (the directions of the transmitting beam and the receiving beam are the same) and the compression rate is equal to or greater than a preset rate, the server 1000 can generate feedback information indicating that there are no peculiarities in the wireless performance, and transmit the generated feedback information to either the A / V transmission device 100 or the A / V receiving device 200.

[0226] FIG. 12a is yet another example of transmission log information when the installation direction of the A / V transmission device is selected to be in the front direction, and FIG. 12b is yet another example of reception log information when the installation direction of the A / V transmission device is selected to be in the front direction.

[0227] 12a, there is illustrated transmission log information 1210. The transmission log information 1210 may include an item 1211 of the number of transmission antennas used (16 antennas used), an item 1213 of the direction of the beam transmitted by the used transmission antenna (or transmission angle), and an item 1215 of the compression rate.

[0228] 12b, reception log information 1230 is illustrated. The reception log information 1230 may include an item of the number of receiving antennas in use (three in use) 1231) and an item of the direction (or receiving angle) of the beam received by the used receiving antenna 1233.

[0229] The server 1000 can determine that the transmission beam is facing forward based on the beam direction included in the transmission log information 1210, and that the reception beam is facing sideways based on the beam direction included in the reception log information 1230.

[0230] Also, the server 1000 can determine that the wireless performance is below the preset performance because the compression ratio measured through the compression ratio item 1215 is below a preset ratio (eg, 25).

[0231] That is, the user selected the installation direction of the A / V transmission device 100 to be the front direction, but the direction of the transmission antenna was shifted, causing the wireless performance to fall below the preset performance.

[0232] The server 1000 may generate feedback information for adjusting the left / right or up / down direction of the transmitting antenna when the direction of the transmitting beam does not match the direction of the receiving beam and the compression rate is less than a preset rate. The server 1000 may transmit the generated feedback information to the A / V transmitting device 100 or the A / V receiving device 200.

[0233] The A / V receiving device 200 can display orientation guides on the display 260 based on the feedback information.

[0234] In this way, according to the embodiment of the present disclosure, it is possible to proactively induce an installation environment by using user log information according to the installation environment, and to provide a guide to the user in an interactive manner in real time, thereby making it possible to easily and simply provide a wireless installation environment for the user.

[0235] In addition, even if the user moves the location of the A / V transmission device 100 or the wireless installation environment is changed, the user can easily adjust the antenna by providing an optimization guide via the network.

[0236] FIG. 13a is a diagram illustrating an example in which a direction adjustment guide is provided based on feedback information generated based on user log information, and FIG. 13b is a diagram illustrating an example in which a reset guide is provided for resetting the installation direction of an A / V transmission device based on feedback information generated based on user log information.

[0237] Referring to FIG. 13 a , the server 1000 may generate feedback information based on user log information and may transmit the generated feedback information to the A / V transmission device 100 .

[0238] The A / V transmission device 100 can generate a guide image that adjusts the direction of the transmitting antenna based on the received feedback information, and can transmit the generated guide image to the A / V receiving device 200.

[0239] The A / V receiving device 200 can display the received guide image 1310 on the display 260. The guide image 1310 can include an operation image 1311 and an operation text 1313 that guide the operation of a sliding button or dial.

[0240] The user can set the optimal wireless environment via the guide image 1310.

[0241] Referring to FIG. 13 b , the server 1000 may generate feedback information based on user log information and may transmit the generated feedback information to the A / V transmission device 100 .

[0242] If the server 1000 determines based on user log information that the initial installation direction of the A / V transmission device 100 is forward and that the measured wireless performance is less than the preset performance, the server 1000 can generate feedback information to reset the installation direction of the A / V transmission device 100.

[0243] Even if the wireless quality state is good, if the number of transmitting antennas used is equal to or greater than a certain number, the server 1000 can determine that the wireless performance is below a preset performance.

[0244] The A / V transmission device 100 may generate a reconfiguration guide image for reconfiguring the installation direction of the A / V transmission device 100 based on feedback information received from the server 1000, and may transmit the generated reconfiguration guide image to the A / V receiving device 200.

[0245] The A / V receiving device 200 may display the received reconfiguration guide image 1330 on the display 260. The reconfiguration guide image 1331 may include a reconfiguration image 1311 and a reconfiguration text 1333 for setting the installation direction of the A / V transmitting device 100.

[0246] The user can readjust the installation direction of the A / V transmission device 100 via the reconfiguration guide image 1330 to set up an optimal wireless environment.

[0247] Meanwhile, according to yet another embodiment of the present disclosure, the server 1000 can generate feedback information indicating the presence of an obstacle when the directions of the transmitting beam and the receiving beam match based on user log information and the number of changes in the number of transmitting antennas used during a certain time period is greater than or equal to a preset number of times, and transmit the generated feedback information to the A / V transmission device 100 or the A / V receiving device 200.

[0248] The A / V receiving device 200 may not display a guide to adjust the direction of the transmitting antenna in response to feedback information indicating the presence of an obstacle.

[0249] In this way, according to the embodiment of the present disclosure, it is possible to detect an obstacle that exists between the A / V transmission device 100 and the A / V receiving device 200 and prevent a guide from being displayed unnecessarily.

[0250] According to an embodiment of the present disclosure, the above-described method may be embodied as processor-readable code on a program-recorded medium, such as a ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

[0251] The A / V transmission device 100 or A / V receiving device 200 described above is not limited to the configurations and methods of the embodiments described above, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications are possible.

Claims

1. An A / V (Audio / Video) transmission device, A compression chip to compress A / V data; Multiple transmit antennas; an RF transmission interface for transmitting the compressed A / V data to an A / V receiving device; a processor that acquires an installation direction of the A / V transmitting device, acquires a wireless quality state between the A / V transmitting device and the A / V receiving device, generates a guide for adjusting directions of the multiple transmitting antennas based on the installation direction of the A / V transmitting device and the wireless quality state, and transmits the generated guide to the A / V receiving device.

2. The A / V transmission device of claim 1 , wherein the processor receives information on an installation direction of the A / V transmission device from the A / V receiving device.

3. 3. The A / V transmission device of claim 2, wherein the processor transmits the guide to the A / V receiving device to adjust at least one of the vertical and horizontal directions of the plurality of transmitting antennas when it is determined that the wireless quality state is not a preset quality state.

4. The A / V transmission device of claim 1 , wherein the processor generates the guide based on an installation direction of the A / V transmission device, the wireless quality state, and antenna usage information for a plurality of receiving antennas included in the A / V receiving device.

5. The A / V transmission device of claim 4, wherein the processor generates the guide to rotate the plurality of transmitting antennas to the left when the installation direction of the A / V transmission device is a forward direction, the wireless quality state is not a preset state, and a right side antenna group of the plurality of receiving antennas is used.

6. The A / V transmission device of claim 4 , wherein the processor receives the antenna usage information from the A / V receiving device via the RF transmission interface.

7. a sliding button for moving the plurality of transmitting antennas in an up and down direction; 2. The A / V transmission device according to claim 1, further comprising: a dial for rotating the plurality of transmitting antennas in a left-right direction.

8. The processor, Transmit user log information to the server, receiving feedback information generated based on user log information from the server; generating a direction adjustment guide for adjusting directions of the plurality of transmitting antennas based on the received feedback information; The A / V transmission device of claim 1 , further comprising: a generated direction adjustment guide that is transmitted to the A / V receiving device.

9. The user log information includes at least one of transmission log information and reception log information, The transmission log information includes at least one of an installation direction of the A / V transmission device, a beam direction of a transmission antenna, a number of transmission antennas in use (number of ON antennas), identification information of a used transmission antenna, or a wireless quality value; The A / V transmission device of claim 8, wherein the reception log information includes one or more of the beam direction of the receiving antenna of the A / V receiving device, the number of receiving antennas in use (the number of receiving antennas that are ON), identification information of the receiving antennas used, or the wireless quality value.

10. 10. The A / V transmission device of claim 9, wherein the feedback information includes information for resetting an installation direction of the A / V transmission device.

11. The A / V transmission device of claim 10, wherein the processor generates a reconfiguration guide for reconfiguring an installation direction of the A / V transmission device based on the feedback information, and transmits the generated reconfiguration guide to the A / V receiving device.

12. The processor, Transmit user log information to the server, receiving feedback information generated based on user log information from the server; 10. The A / V transmission device of claim 9, wherein the feedback information includes information indicating the presence of an obstacle between the A / V transmission device and the A / V receiving device.

13. 2. The A / V transmission device according to claim 1, wherein the A / V transmission device is installed in any one of a lower end face direction, a front direction, and a side direction of a display provided in the A / V receiving device.

14. An A / V (Audio / Video) receiving device, display; an RF receiving interface including a plurality of receiving antennas for receiving the compressed A / V data from the A / V transmission device; a decompression chip for decompressing the compressed A / V data; a microcomputer that displays on the display a setting screen for setting an installation direction of the A / V transmitting device, acquires information on the installation direction selected by a direction selection input received via the setting screen, acquires a wireless quality state between the A / V transmitting device and the A / V receiving device, and displays on the display a guide for adjusting the directions of the plurality of transmitting antennas generated based on the installation direction of the A / V transmitting device and the wireless quality state.

15. 1. A wireless display system, comprising: The present invention comprises an A / V (Audio / Video) transmission device and an A / V receiving device having a display, The A / V transmission device includes: obtaining an installation direction of the A / V transmitting device; Acquiring a wireless quality state between the A / V transmitting device and the A / V receiving device; generating a guide for adjusting directions of a plurality of transmitting antennas included in the A / V transmission device based on an installation direction of the A / V transmission device and the wireless quality state; Transmitting the generated guide to the A / V receiving device; The A / V receiving device displays the received guide. A wireless display system.

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