Audio / video (a / v) receiving device and wireless display system

Abstract

An audio / video (A / V) receiving device, according to an embodiment of the present disclosure, comprises: a display; an radio frequency (RF) receiving interface comprising a plurality of receiving antennas for wirelessly receiving compressed A / V signals from an A / V transmission device; and a decoding chip for decompressing the compressed A / V signals; and a microcomputer for outputting the decoded A / V signals, wherein the RF receiving interface may be arranged to be inclined in at least one of left-right direction or up-down direction.

Description

A / V (AUDIO / VIDEO) receiving device and wireless display system

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

[0002] Recently, TV services have been provided through wireless display systems in which an A / V transmission device transmits a compressed A / V (Audio / Video) signal to an A / V receiving device via a wireless connection, and the A / V receiving device restores the compressed A / V signal and outputs it.

[0003] In wireless display systems, wireless communication between the A / V transmitter and receiver is often interrupted by interference from obstacles such as sofas and tables. This interference can cause flickering in the video displayed on the A / V receiver.

[0004] Accordingly, there is a problem in that the customer cannot place the A / V transmission device in the desired location.

[0005] The purpose of the present disclosure is to provide an optimal wireless environment regardless of the location of an A / V transmission device by improving the structure of an RF reception interface including reception antennas provided in an A / V reception device.

[0006] The purpose of this disclosure is to provide information on the placement of an RF receiving interface having optimal wireless performance.

[0007] An A / V (Audio / Video) receiving device according to one embodiment of the present disclosure includes a display, an RF (Radio Frequency) receiving interface including a plurality of receiving antennas for wirelessly receiving a compressed A / V signal from an A / V transmitting device, a restoration chip for restoring the compressed A / V signal, and a microcomputer for outputting the restored A / V signal, wherein the RF receiving interface can be arranged to be inclined in at least one of the left-right direction and the up-down direction.

[0008] In a wireless display system including an A / V (Audio / Video) transmission device and an A / V reception device according to one embodiment of the present disclosure, the A / V transmission device transmits a compressed A / V signal to the A / V reception device, the A / V reception device receives the compressed A / V signal through an RF (Radio Frequency) reception interface including a plurality of reception antennas that wirelessly receive the compressed A / V signal, restores the compressed A / V signal, and outputs the restored A / V signal, and the RF reception interface can be arranged to be inclined in at least one of a left-right direction and an up-down direction.

[0009] According to embodiments of the present disclosure, optimal wireless performance can be provided regardless of the location of the A / V transmission device. Furthermore, unlike conventional systems, users are not restricted by the location constraints of the A / V transmission device.

[0010] Additionally, according to an embodiment of the present disclosure, a user can intuitively check the arrangement of the RF receiving interface through a guide, and can easily perform the arrangement of the RF receiving interface accordingly.

[0011] FIGS. 1 and 2 are drawings explaining the configuration of a display system according to one embodiment of the present disclosure.

[0012] FIG. 3 is a block diagram illustrating the configuration of a remote control device according to one embodiment of the present disclosure.

[0013] Figure 4a is a perspective view of an A / V transmission device.

[0014] Figure 4b is a drawing explaining the internal structure of an A / V transmission device.

[0015] Figure 4c is a drawing illustrating an RF receiving interface of an A / V receiving device.

[0016] FIG. 5a and FIG. 5b are drawings explaining a situation in which interference occurs in a signal transmitted by an A / V transmission device due to an obstacle according to a conventional technology, resulting in poor video output.

[0017] FIGS. 6A and 6B are drawings illustrating the arrangement of an RF receiving interface tilted at a certain angle in the horizontal direction according to one embodiment of the present disclosure, and FIGS. 6C and 6D are drawings illustrating the arrangement of an RF receiving interface tilted at a certain angle in the vertical direction according to another embodiment of the present disclosure.

[0018] FIG. 7 is a flowchart for explaining an operation method of an A / V receiving device according to an embodiment of the present disclosure.

[0019] FIG. 8 is a wireless performance table showing a correspondence relationship between the arrangement information of an RF receiving interface and the wireless performance values ​​corresponding to the arrangement information according to one embodiment of the present disclosure.

[0020] FIGS. 9A to 9D are drawings illustrating a process for guiding the placement of an RF receiving interface according to an embodiment of the present disclosure.

[0021] An audio / video (hereinafter, A / V) transmission device according to an embodiment of the present disclosure is, for example, an intelligent device that adds a computer support function to a broadcast reception function, and while remaining faithful to the broadcast reception function, it can be provided with an Internet function, etc., and a more convenient interface such as a manual input device, a touch screen, or a space remote control.

[0022] Additionally, with wired or wireless Internet access, you can connect to the Internet and a computer, enabling functions such as email, web browsing, banking, and gaming. A standardized, general-purpose operating system can be used for these diverse functions.

[0023] Accordingly, the A / V transmission device described in the present disclosure can perform various user-friendly functions, for example, since various applications can be freely added or deleted on a general-purpose OS kernel.

[0024] FIGS. 1 and 2 are drawings illustrating the configuration of a wireless display system according to an embodiment of the present disclosure.

[0025] Referring to FIG. 1, a wireless display system (1) according to one embodiment of the present disclosure includes an A / V transmission device (100) and an A / V reception device (200).

[0026] A 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 reception device (200), and the A / V reception device (200) outputs A / V data.

[0027] The A / V transmission device (100) may be a device capable of encoding video and audio and wirelessly transmitting the encoded content video and audio.

[0028] The A / V transmission device (100) may be a set-top box.

[0029] The A / V transmission device (100) can be connected to an external device such as a set-top box or a USB memory. The A / V transmission device (100) can transmit a video signal or audio signal received from the connected external device to the A / V reception device (200).

[0030] 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.

[0031] An A / V transmission device (100) and an A / V reception device (200) can constitute a video wall display system.

[0032] In video walls, display bezels with thin bezels play a crucial role in visualizing content. To achieve this, it's efficient to have only the bare minimum components, with circuits or components for key functions housed in separate devices.

[0033] The A / V transmission device (100) can determine the type of content image input from the outside and, based on the determined type, determine the compression ratio of the content image. The compression ratio of the content image can be defined as the ratio of the size of the image data before encoding and the size of the image data after encoding.

[0034] The type of content video can include still image type, general video type, and game video type.

[0035] The A / V transmission device (100) can compress content images according to a determined compression ratio and wirelessly transmit the compressed content images to the A / V reception device (200).

[0036] The A / V receiving device (200) can restore a compressed content image received from the A / V transmitting device (100) and display the restored content image on a display.

[0037] Figure 2 is a block diagram illustrating the detailed configuration of an A / V transmission device (100) and an A / V reception device (200).

[0038] 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).

[0039] The microphone (110) can receive an audio signal and transmit it to the processor (190).

[0040] The microphone (110) can receive the voice spoken by the user.

[0041] The wireless communication interface (120) may include one or more of a Wi-Fi module and a Bluetooth module.

[0042] The Wi-Fi module can perform wireless communication with an external device or A / V receiving device (200) through the Wi-Fi standard.

[0043] The Bluetooth module can perform wireless communication through the Bluetooth Low Energy (BLE) standard.

[0044] The Bluetooth module can perform wireless communication with an external device such as a remote control or an A / V receiving device (200) through the Bluetooth Low Energy (BLE) standard.

[0045] The wireless communication interface (120) may also have a tuner for receiving broadcast signals.

[0046] The wired communication interface (130) may be an interface for wired connection with an external device. The wired communication interface (130) may include a plurality of HDMI (High Definition Multimedia Interface) terminals or USB (Universal Serial Bus) ports.

[0047] The wired communication interface (130) can receive a video signal or audio signal from an external device.

[0048] The memory (140) stores a program for signal processing and control, and can store signal-processed image, voice, or data signals.

[0049] The memory (140) may perform a function for temporary storage of video, audio, or data signals input from the outside, and may also store information about a specific image through a channel memory function.

[0050] The compression chip (150) can compress a video signal or audio signal input from the outside and transmit the compressed signal to the RF transmission interface (160).

[0051] The compression chip (150) may be equipped with an encoder for compressing a video signal or an audio signal.

[0052] The RF transmission interface (160) can transmit an A / V signal to the RF reception interface (240) of the A / V reception device (200) via RF (Radio Frequency) communication.

[0053] The RF transmission interface (160) may include one or more antennas.

[0054] The RF transmission interface (160) can transmit a compressed A / V signal in digital form to the RF reception interface (240).

[0055] The RF transmission interface (160) can transmit A / V signals to the RF reception interface (240) through one or more channels.

[0056] The processor (190) can control the overall operation of the A / V transmission device (100). The processor (190) may be referred to as a main system on chip (Main SoC).

[0057] The processor (190) may also include a compression chip (150).

[0058] 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 recovery chip (280), and a microcomputer (290).

[0059] The wireless communication interface (210) may include a Wi-Fi module, a Bluetooth module, and an IR module.

[0060] The Wi-Fi module can perform wireless communication through the Wi-Fi standard.

[0061] The Wi-Fi module can perform wireless communication with an external device or A / V transmission device (100) through the Wi-Fi standard.

[0062] The Bluetooth module can perform wireless communication through the Bluetooth Low Energy (BLE) standard.

[0063] The Bluetooth module can perform wireless communication with an external device such as a remote control or an A / V transmission device (100) through the Bluetooth Low Energy (BLE) standard.

[0064] The IR module can receive signals from a remote control (300) to be described later via IR (Infrared) communication.

[0065] The wired communication interface (220) may be an interface for wired connection with an external device. The wired communication interface (220) may include multiple HDMI (High Definition Multimedia Interface) terminals or USB (Universal Serial Bus) ports.

[0066] The wired communication interface (220) can receive a video signal or audio signal from an external device.

[0067] The RF receiving interface (240) can receive a compressed A / V signal from the RF transmitting interface (160).

[0068] The RF receiving interface (240) may include multiple antennas. The RF receiving interface (240) may be positioned at the bottom of the display (260).

[0069] The RF receiving interface (240) may include a first antenna module and a second antenna module. The first antenna module and the second antenna module may each include a plurality of antennas.

[0070] The RF receiving interface (240) can receive a compressed A / V signal in digital form from the RF transmitting interface (160) and transmit the received A / V signal to the restoration chip (280).

[0071] The memory (250) stores a program for signal processing and control, and can store signal-processed image, voice, or data signals.

[0072] The display (260) can display a video signal received from the microcomputer (290).

[0073] The display (260) can display a video signal according to the operation of a timing controller (not shown).

[0074] The restoration chip (280) can restore the compressed A / V signal received by the RF receiving interface (240). To this end, the restoration chip (280) can include a decoder.

[0075] The microcomputer (290) can control the overall operation of the A / V receiving device (200).

[0076] The microcomputer (290) can output a restored image signal through a display (260) and output a restored audio signal through a speaker (270).

[0077] FIG. 3 is a block diagram illustrating the configuration of a remote control device according to one embodiment of the present disclosure.

[0078] 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).

[0079] The wireless communication interface (310) may be an interface for performing wireless communication with an A / V transmission device (100) or an A / V reception device (200).

[0080] The wireless communication interface (310) may include a Bluetooth Low Energy (BLE) module (311) and an IR (InfraRed) module (313).

[0081] The BLE module (311) can transmit a signal to the A / V transmission device (100) to control the operation of the A / V transmission device (100).

[0082] 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).

[0083] The user input interface (330) may be composed of a keypad, buttons, a touch pad, or a touch screen.

[0084] The user input interface (330) can generate control commands to control the operation of the A / V transmission device (100) or the A / V reception device (200) according to the user's operation commands.

[0085] When the user input interface (330) has a hard key button, the user can operate the hard key by pushing the hard key button.

[0086] The user input interface (330) may be equipped with various types of input means that can be operated by the user, such as a scroll key or a jog key.

[0087] The memory (350) can store a program for the operation of the controller (390) and can also temporarily store input / output data.

[0088] The controller (390) controls the operations associated with the application and, typically, the overall operation of the remote control device (300).

[0089] Fig. 4a is a perspective view of an A / V transmission device, Fig. 4b is a drawing explaining the internal structure of the A / V transmission device, and Fig. 4c is a drawing explaining an RF reception interface of an A / V reception device.

[0090] Referring to FIG. 4a, the A / V transmission device (100) may include a box (410), a sliding button receiving portion (401) that receives a sliding button (401a), a dial (403), a power status display portion (405), and a communication quality status display portion (407).

[0091] The interior of the box (410) may contain components of the A / V transmission device (100) described in FIG. 2. The box (410) may be a housing that includes components of the A / V transmission device (100) described in FIG. 2.

[0092] The sliding button (401a) may be a means for controlling the vertical direction (tilting control) of the RF transmission interface (160) illustrated in FIG. 4b.

[0093] The dial (403) may be a means for controlling the horizontal rotation direction (panning control) of the RF transmission interface (160) illustrated in FIG. 4b.

[0094] The power status indicator (405) can indicate the power on or off status of the A / V transmission device (100). The power status indicator (405) can have one or more LEDs.

[0095] The communication quality status display unit (407) can indicate the communication quality status between the A / V transmission device (100) and the A / V reception device (200). The communication quality status display unit (407) can be equipped with one or more LEDs.

[0096] The communication quality status display unit (407) may not be provided in the box (410) as it is an optional configuration.

[0097] The processor (190) can receive pointing correction input through a sliding button (401a) or a dial (403).

[0098] The processor (190) can tilt the RF transmission interface (160) including the transmission antennas up and down according to an input that moves the sliding button (401a).

[0099] The RF transmission interface (160) may include a substrate and a plurality of transmission antennas. The RF transmission interface (160) may be provided on top of a heat sink (611) that discharges heat generated inside the box (410).

[0100] The processor (190) can rotate or pan the RF transmission interface (160) including the transmission antennas left and right in response to an input that moves the dial (403).

[0101] The user can perform antenna pointing correction by operating the sliding button (401a) or dial (403) while looking at the antenna guide used to adjust the direction of the transmitting antenna.

[0102] According to another embodiment of the present disclosure, a motor (not shown) for automatically controlling tilting of the RF transmission interface (160) according to information about the determined vertical correction angle and a motor (not shown) for automatically controlling panning of the RF transmission interface (160) according to information about the determined horizontal correction angle may be further provided in the box (410).

[0103] In this case, the RF transmission interface (160) can be set to have an optimal layout structure without a separate guide, thereby maximizing user convenience.

[0104] Referring to FIG. 4c, an RF receiving interface (240) may be provided at the bottom of the display (260) of the A / V receiving device (200).

[0105] The RF receiving interface (240) may be positioned at the center bottom of the display (260). The RF receiving interface (240) may be housed in a separate housing, and the housing may be positioned at the center bottom of the display (260).

[0106] The RF receiving interface (240) includes a plurality of receiving antennas and receives A / V data from the A / V transmitting device (100).

[0107] The RF receiving interface (240) may include a front antenna array (241), an upper antenna array (242) positioned above the front antenna array (241), a lower antenna array (243) positioned below the front antenna array (241), a right antenna array (244) positioned on the right side of the front antenna array (241), and a left antenna array (245) positioned on the left side of the front antenna array (241).

[0108] In one embodiment, each of the front antenna array (241), the upper antenna array (242), the lower antenna array (243), the right antenna array (244), and the left antenna array (245) may include multiple receiving antennas.

[0109] In one embodiment, the receiving antennas included in each of the front antenna array (241), the upper antenna array (242), the lower antenna array (243), the right antenna array (244), and the left antenna array (245) may all be arranged to face the same direction.

[0110] In another embodiment, the front antenna array (241), the upper antenna array (242), the lower antenna array (243), the right antenna array (244), and the left antenna array (245) may each be arranged to face different directions.

[0111] FIG. 5a and FIG. 5b are drawings explaining a situation in which interference occurs in a signal transmitted by an A / V transmission device due to an obstacle according to a conventional technology, resulting in poor video output.

[0112] In FIGS. 5a and 5b, the A / V transmission device (100) is placed on the left floor of the sofa (510), and the A / V reception device (200) is placed in front of the sofa (510).

[0113] The user adjusts the direction of the RF transmission interface (160) to face the RF reception interface (240) of the A / V reception device (200) via the sliding button (401a) and dial (403) of the A / V transmission device (100).

[0114] The RF receiving interface (240) can normally receive A / V signals within a range of 45 degrees upward and 90 degrees downward based on the horizontal direction (0 degrees).

[0115] However, the A / V signal radiated by the transmission antennas provided in the RF transmission interface (160) is blocked by the left side of the sofa (510), causing interference.

[0116] Due to this, the A / V signal may not be transmitted normally to the A / V receiving device (200), which may cause video / audio interruption.

[0117] Referring to FIG. 5b, the A / V transmission device (100) can be placed on a shelf (530) according to the user's preference. In this case, the A / V signal (beam) transmitted from the A / V transmission device (100) is reflected through the ceiling and transmitted to the RF receiving interface (240).

[0118] However, when the A / V signal is reflected through the ceiling, the A / V signal may not be properly transmitted to the A / V receiving device (200) due to an obstacle between the A / V transmitting device (100) and the A / V receiving device (200). That is, the A / V signal may not be received within the angular range that the RF receiving interface (240) can receive due to interference.

[0119] Accordingly, phenomena such as video flickering and audio interruption occur, which interfere with the user's A / V viewing experience. In addition, there is a problem in that the A / V transmission device (100) cannot be arranged according to the user's preference.

[0120] In the present disclosure, an embodiment is described in which the arrangement of the RF receiving interface (240) is tilted in the horizontal direction (left-right direction) or vertical direction (up-down direction) so as to escape from the arrangement constraints of the A / V transmission device (100).

[0121] FIGS. 6A and 6B are drawings illustrating the arrangement of an RF receiving interface tilted at a certain angle in the horizontal direction according to one embodiment of the present disclosure, and FIGS. 6C and 6D are drawings illustrating the arrangement of an RF receiving interface tilted at a certain angle in the vertical direction according to another embodiment of the present disclosure.

[0122] The RF receiving interface (240) may be provided within a housing (600) positioned at the bottom of the display.

[0123] The existing RF receiving interface (240) is positioned so as to be fixed without being tilted in the horizontal and vertical directions.

[0124] Referring to FIG. 6a, the RF receiving interface (240) is fixed in a horizontal or vertical direction.

[0125] The horizontal direction can be left or right.

[0126] The vertical direction can be upward or downward.

[0127] After the A / V transmission device (100) is positioned, the user can adjust the position of the RF receiving interface (240). The positioning of the RF receiving interface (240) can be performed manually or automatically. If performed automatically, a motor (not shown) for adjusting the positioning of the RF receiving interface (240) may be provided within the housing (600).

[0128] Referring to FIG. 6a, the RF receiving interface (240) that is not tilted in the horizontal or vertical direction can be arranged to be tilted a degree in the left direction. The a degree can be 15 degrees, but this is merely an example.

[0129] The RF receiving interface (240) can be connected to the display (260) via a hinge (not shown). When an external force is applied, the RF receiving interface (240) can be tilted left and right or up and down via the hinge.

[0130] The wireless performance value between the RF receiving interface (240-1) positioned to be tilted a degree in the left direction and the RF transmitting interface (160) of the A / V transmitting device (100) positioned at the first position according to the user's preference may be the maximum value.

[0131] Referring to FIG. 6b, the RF receiving interface (240) that is not tilted in the horizontal and vertical directions can be arranged to be tilted b degrees in the right direction.

[0132] The wireless performance value between the RF receiving interface (240-2) positioned to be tilted a degree in the right direction and the RF transmitting interface (160) of the A / V transmitting device (100) positioned at a second position according to the user's preference may be a maximum value.

[0133] Referring to FIG. 6c, the RF receiving interface (240) that is not tilted in the horizontal or vertical direction can be arranged to be tilted upward by c degrees. The c degrees can be 15 degrees or 45 degrees, but these are merely exemplary figures.

[0134] The wireless performance value between the RF receiving interface (240-3) positioned to be inclined upward by c degrees and the RF transmitting interface (160) of the A / V transmitting device (100) positioned at a third position according to the user's preference may be a maximum value.

[0135] Referring to FIG. 6d, the RF receiving interface (240) that is not inclined in the horizontal or vertical direction can be arranged to be inclined downward by d degrees. d degrees can be 15 degrees or 45 degrees, but these are merely exemplary figures.

[0136] The wireless performance value between the RF receiving interface (240-4) positioned to be inclined by d degrees in the lower horizontal direction and the RF transmitting interface (160) of the A / V transmitting device (100) positioned at the fourth position according to the user's preference may be the maximum value.

[0137] In this way, unlike the prior art, according to the embodiment of the present disclosure, the RF receiving interface (240) is arranged to be inclined in the horizontal or vertical direction, so that optimal wireless performance can be provided regardless of the position in which the A / V transmission device (100) is arranged.

[0138] FIG. 7 is a flowchart for explaining an operation method of an A / V receiving device according to an embodiment of the present disclosure.

[0139] In particular, FIG. 7 is an embodiment for providing optimal arrangement information of an RF receiving interface (240) provided in an A / V receiving device (200).

[0140] Referring to FIG. 7, the microcomputer (290) of the A / V receiving device (200) can display a guide for changing the antenna arrangement on the display (260) (S701).

[0141] A guide for changing the antenna layout may be a guide for changing the layout of the RF transmission interface (160) and the layout of the RF reception interface (240). The guide may include one or more of text and images.

[0142] In one embodiment, a guide for changing the arrangement of the RF transmitting interface (160) and a guide for changing the arrangement of the RF receiving interface (240) may be displayed on one screen.

[0143] In another embodiment, after displaying a guide for changing the arrangement of the RF transmitting interface (160), a guide for changing the arrangement of the RF receiving interface (240) may be sequentially displayed.

[0144] A guide for changing antenna placement may be displayed during the initial setup of the wireless display system.

[0145] The user can change the arrangement of the RF transmitting interface (160) and the RF receiving interface (240) according to the guide for changing the antenna arrangement.

[0146] After the user positions the A / V transmission device (100) at a desired location, the user can adjust the arrangement angles of the multiple transmission antennas provided in the RF transmission interface (160) through the sliding button (401a) and dial (403).

[0147] Afterwards, the user can adjust the placement angle of the RF receiving interface (240) of the A / V receiving device (200) in the horizontal or vertical direction according to the guide.

[0148] The user can move the housing (600) containing the RF receiving interface (240) in a horizontal or vertical direction.

[0149] The guide can display a first guide text and a first guide image to move horizontally by preset angles.

[0150] The guide may display a second guide text and a second guide image to move vertically by preset angles.

[0151] The microcomputer (290) of the A / V receiving device (200) can obtain multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) according to a change in the arrangement of the RF receiving interface (240) (S703).

[0152] The microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) based on a signal received from the RF transmitting interface (160) according to a change in the arrangement of the RF receiving interface (240).

[0153] For example, the microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) in each case where the right angle of the RF receiving interface (240) is 0, 15, 30, and 45 degrees.

[0154] The microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) in each case where the left angle of the RF receiving interface (240) is 0, 15, 30, and 45 degrees.

[0155] The microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) in each case where the upper angle of the RF receiving interface (240) is 0, 15, 30, and 45 degrees.

[0156] The microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) in each case where the lower angle of the RF receiving interface (240) is 0, 15, 30, and 45 degrees.

[0157] The microcomputer (290) can measure multiple wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) in the case of a combination of left-right angles or up-down angles. For example, the microcomputer (290) can measure wireless performance values ​​between the RF receiving interface (240) and the RF transmitting interface (160) while tilted 15 degrees to the left and 15 degrees to the upper direction with respect to the RF receiving interface (240).

[0158] The microcomputer (290) can obtain the received signal strength indicator (RSSI) of the signal received from the RF transmission interface (160) through the RF reception interface (240) as a wireless performance value.

[0159] The microcomputer (290) can measure the RSSI between the RF receiving interface (240) and the RF transmitting interface (160) according to changes in the left angle, right angle, upper angle, and lower angle of the RF receiving interface (240).

[0160] The microcomputer (290) can store the combination between the measured RSSI and the left angle, right angle, upper angle, and lower angle of the RF receiving interface (240) in the memory (250).

[0161] FIG. 8 is a wireless performance table showing a correspondence relationship between the arrangement information of an RF receiving interface and the wireless performance values ​​corresponding to the arrangement information according to one embodiment of the present disclosure.

[0162] The wireless performance table (800) of FIG. 8 may be a table acquired by the A / V receiving device (200) through step S703. The wireless performance table (800) may be stored in the memory (250).

[0163] The wireless performance table (800) may be a table that matches RSSI to layout information including the left angle, right angle, upper angle, and lower angle of the RF receiving interface (240).

[0164] The wireless performance table (800) can be used to extract optimal wireless performance values.

[0165] Again, Figure 7 is explained.

[0166] The microcomputer (290) of the A / V receiving device (200) can obtain arrangement information of the RF receiving interface (240) corresponding to the optimal performance value among the acquired multiple wireless performance values ​​(S705).

[0167] The microcomputer (290) can obtain arrangement information of an RF receiving interface (240) having a preset value or higher among the acquired multiple wireless performance values.

[0168] The placement information of the RF receiving interface (240) may include at least one of a horizontal angle at which the RF receiving interface (240) is inclined in a horizontal direction or a vertical angle at which the RF receiving interface (240) is inclined in a vertical direction.

[0169] In one embodiment, the microcomputer (290) can determine the maximum value among multiple wireless performance values ​​as the optimal performance value. The microcomputer (290) can obtain the arrangement information of the RF receiving interface (240) corresponding to the maximum value.

[0170] The microcomputer (290) can extract the maximum value of RSSI from the wireless performance table (800) of FIG. 8 and obtain the arrangement information of the RF receiving interface (240) corresponding to the maximum value of the extracted RSSI.

[0171] For example, the microcomputer (290) can extract the maximum value of RSSI, 10, from the wireless performance table (800) of FIG. 8, and extract the left angle of 15 degrees, the right angle of 0 degrees, the upper angle of 15 degrees, and the lower angle of 0 degrees of the RF receiving interface (240) that match 10.

[0172] In another embodiment, the microcomputer (290) can extract values ​​that are greater than or equal to a preset value from among a plurality of wireless performance values. The microcomputer (290) can determine the RSSI corresponding to the smallest sum of the movement angles of the RF receiving interface (240) among the extracted values ​​as the optimal wireless performance value.

[0173] For example, in the case of a default arrangement state in which the left angle, right angle, upper angle, and lower angle of the RF receiving interface (240) are all 0 degrees, if the RSSI is greater than a preset value, the microcomputer (290) can obtain the arrangement information as information corresponding to the optimal wireless performance value.

[0174] In the case of the default arrangement state in which the left angle, right angle, upper angle, and lower angle of the RF receiving interface (240) are all 0 degrees, this is the initial setting state, so the convenience of the user in setting the arrangement of the RF receiving interface (240) can be improved.

[0175] The microcomputer (290) of the A / V receiving device (200) can display the arrangement information of the acquired RF receiving interface (240) on the display (260) (S707).

[0176] The microcomputer (290) can display layout information including the horizontal angle and vertical angle of the RF receiving interface (240) on the display (260). The layout information of the RF receiving interface (240) may be information that matches when the RF transmitting interface (160) and the RF receiving interface (240) have optimal wireless performance values.

[0177] The placement information of the RF receiving interface (240) may include either a left angle or a right angle of the RF receiving interface (240) and either an upper angle or a lower angle of the RF receiving interface (240).

[0178] The user can check the arrangement information of the RF receiving interface (240) displayed on the display (260) and adjust one or more of the horizontal angle or vertical angle of the RF receiving interface (240).

[0179] That is, the user can tilt the RF receiving interface (240) horizontally or vertically according to the arrangement information of the RF receiving interface (240) displayed on the display (260).

[0180] Accordingly, optimal wireless performance can be provided regardless of the location of the A / V transmission device (100). Furthermore, unlike in the past, the user may not be bound by the location constraints of the A / V transmission device (100).

[0181] FIGS. 9A to 9D are drawings illustrating a process for guiding the placement of an RF receiving interface according to an embodiment of the present disclosure.

[0182] Referring to FIG. 9a, the A / V receiving device (200) can display a first guide (910) on the display (260) that guides the placement of the A / V transmitting device (100) and the RF transmitting interface (160) during initial system setup.

[0183] Thereafter, the A / V receiving device (200) may display a second guide (920) on the display (260) requesting a change in the arrangement of the RF receiving interface (240), as illustrated in FIG. 9b. The second guide (920) may be a guide requesting a stepwise change in the RF receiving interface (240) to tilt left and right or up and down.

[0184] The A / V receiving device (200) can measure wireless performance values ​​between the RF transmitting interface (160) and the RF receiving interface (160) in real time according to changes in the arrangement of the RF receiving interface (240).

[0185] The A / V receiving device (200) can obtain the maximum value among the plurality of measured wireless performance values ​​and obtain the arrangement information of the RF receiving interface (240) corresponding to the obtained maximum value.

[0186] The A / V receiving device (200) may display a third guide (930) on the display (260) that guides the placement of the RF receiving interface (240) using the acquired placement information of the RF receiving interface (240), as illustrated in FIG. 9c. The third guide (930) may include text indicating that optimal silent performance is provided when the direction of the RF receiving interface (240) is tilted 15 degrees to the left and 15 degrees upward.

[0187] In another embodiment, the A / V receiving device (200) may display a fourth guide (940) on the display (260) to guide the placement of the RF receiving interface (240) according to the placement type of the RF receiving interface (240), as illustrated in FIG. 9d.

[0188] Each of the arrangement types of the RF receiving interface (240) may be matched to the horizontal angle and vertical angle of the RF receiving interface (240).

[0189] For example, type A may have a left angle of 15 degrees and an upper angle of 15 degrees of the RF receiving interface (240), type B may have a left angle of 30 degrees and a vertical angle of 0 degrees of the RF receiving interface (240), and type C may have a right angle of 15 degrees and an upper angle of 15 degrees of the RF receiving interface (240).

[0190] The fourth guide (940) may further include guide text for setting the arrangement of the RF receiving interface (240) according to the arrangement type of the RF receiving interface (240) and a guide image representing the arrangement type of the RF receiving interface (240).

[0191] The user can intuitively check the arrangement of the RF receiving interface (240) through the fourth guide (940) and easily perform the arrangement of the RF receiving interface (240) accordingly.

[0192] Meanwhile, when the user manipulates the arrangement of the RF receiving interface (240) after the display of the third guide (930) or the fourth guide (940), if the RF receiving interface (240) is set to an arrangement that matches the arrangement information included in the third guide (930) or the fourth guide (940), the microcomputer (290) can output a notification indicating that the arrangement of the RF receiving interface (240) is appropriate or complete.

[0193] According to one embodiment of the present disclosure, the above-described method can be implemented as processor-readable code on a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

Claims

1. In A / V (Audio / Video) receiving devices, display; An RF (Radio Frequency) receiving interface including a plurality of receiving antennas for wirelessly receiving compressed A / V signals from an A / V transmitting device; A restoration chip for restoring the compressed A / V signal; and Includes a microcomputer that outputs a restored A / V signal, The above RF receiving interface is Positioned tilted in one or more directions, either left-right or up-down A / V receiving device.

2. In paragraph 1, The above RF receiving interface is Positioned so as to be inclined by a first angle in the left or right direction, or positioned so as to be inclined by a second angle in the upward or right direction. A / V receiving device.

3. In paragraph 1, The above microcomputer According to the change in the arrangement of the RF receiving interface, a plurality of wireless performance values ​​are acquired between the RF transmitting interface and the RF receiving interface provided in the A / V transmission device, and arrangement information of the RF receiving interface corresponding to the optimal wireless performance value among the acquired plurality of wireless performance values ​​is acquired. A / V receiving device.

4. In paragraph 3, The above microcomputer Displaying the arrangement information of the RF receiving interface corresponding to the above optimal wireless performance value on the display. A / V receiving device.

5. In paragraph 3, The layout information of the above RF receiving interface is including either a left angle or a right angle of the RF receiving interface and either an upper angle or a lower angle of the RF receiving interface; A / V receiving device.

6. In paragraph 3, Includes more memory, The above microcomputer Matching each of the above plurality of wireless performance values ​​with the arrangement information of the RF receiving interface and storing them in the memory. A / V receiving device.

7. In paragraph 3, Each of the above multiple wireless performance values ​​is a Received Signal Strength Indicator (RSSI). A / V receiving device.

8. In paragraph 1, Further comprising a housing accommodating the RF receiving interface, The above housing is placed at the bottom of the above display. A / V receiving device.

9. In paragraph 8, The above RF receiving interface is Connected via the above display and hinge A / V receiving device.

10. In paragraph 2, Each of the first angle and the second angle Any one of 0, 15, 30, 45 degrees A / V receiving device.

11. In paragraph 1, The above RF receiving interface is The RF transmission interface and the RF reception interface of the A / V transmission device are arranged so that the wireless performance value is at its maximum in at least one of the left-right direction or the up-down direction. A / V receiving device.

12. In paragraph 3, The above microcomputer Extracting values ​​higher than a preset value from among the plurality of wireless performance values, and obtaining one of the extracted values ​​higher than the preset value as the optimal wireless performance value. A / V receiving device.

13. In paragraph 12, The above microcomputer Obtaining the maximum value among the values ​​greater than or equal to the above preset value as the optimal wireless performance value. A / V receiving device.

14. In paragraph 1, The above microcomputer A guide for guiding the change of arrangement of the RF receiving interface is displayed on the display. A / V receiving device.

15. In a wireless display system including an A / V (Audio / Video) transmission device and an A / V reception device, The above A / V transmission device Transmitting the compressed A / V signal to the A / V receiving device, The above A / V receiving device Receives the compressed A / V signal wirelessly through an RF (Radio Frequency) receiving interface including a plurality of receiving antennas, restores the compressed A / V signal, and outputs the restored A / V signal. The above RF receiving interface is Positioned tilted in one or more directions, either left-right or up-down Wireless display system.

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