Video reproduction device and program for video reproduction device

Abstract

To provide a video reproduction device that properly displays an external video signal.SOLUTION: A video reproduction device comprises an external video input terminal, a processing part and a switching part, wherein the processing part processes and outputs an input video input from the external video input signal, and the switching part comprises a first output terminal capable of outputting the video to a first display part, and performs switching processing to alternate between a first state in which the first processing output video output from the processing part is output from the first output terminal when the input video input from the external video input terminal has predetermined resolution or lower and a second state in which the input video input from the external video input terminal is output from the first output terminal not via the processing part when the input video input from the external video input terminal has resolution larger than the predetermined resolution.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a video playback device that outputs externally input video to a display unit, and a program for the video playback device.

Background Art

[0002] Conventionally, karaoke in which singing is enjoyed in accompaniment has been performed in social settings and the like. A karaoke device used in karaoke has a basic function of outputting video and audio, like other video playback devices. In such a video playback device, it is necessary to display and play back the video intended by the user.

[0003] Patent Document 1 discloses a video output device that suppresses the display of a black screen (corresponding to no video output, blackout) when switching videos, and enables rapid video switching.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The video playback device described in Patent Document 1 is intended to solve the situation where, when a black screen is displayed during video switching, the user using the device may misunderstand that the video playback device or its external device is malfunctioning.

[0006] Here, in a video playback device such as a karaoke device, there is one that has a function of connecting an external video playback device and displaying and outputting the playback video of the external video playback device on the video playback device. In such a video playback device, by using an external video playback device such as a smartphone, it is also possible to enjoy handheld video content on a large screen. However, if the input video is not an input video that can be handled by the video playback device set to a specific state, it is conceivable that the video playback device cannot appropriately display and output the input video. The present invention is in view of such a situation, and one object thereof is to appropriately display and output an input video in a video playback device.

Means for Solving the Problems

[0007] Therefore, the video playback device according to the present invention employs the following configuration. It includes an external video input terminal, a processing unit, and a switching unit. The processing unit processes and outputs an input video input from the external video input terminal. The switching unit includes a first output terminal capable of outputting to a first display unit. When the input video input from the external video input terminal is equal to or lower than a predetermined resolution, it is in a first state in which the first processed output video output from the processing unit is output from the first output terminal. When the input video input from the external video input terminal is greater than a predetermined resolution, it executes a switching process of switching between a second state in which the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit.

[0008] Furthermore, the video playback device according to the present invention includes a storage unit. When a first set value is stored in the storage unit, it executes the switching process. When a second set value is stored in the storage unit, the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit.

[0009] Furthermore, the video playback device according to the present invention includes a second display unit. When the switching unit is in the first state, the input video input from the external video input terminal is processed into a second processed output video and displayed on the second display unit. When the switching unit is in the first state, a predetermined video is displayed on the second display unit.

[0010] Furthermore, the video playback device according to the present invention includes a storage unit, when a first set value is stored in the storage unit, execute a switching process, when a second set value is stored in the storage unit, do not display a predetermined video on the second display unit.

[0011] Furthermore, the video playback device according to the present invention receives an operation for storing the first set value or the second set value in the storage unit.

[0012] Furthermore, the video playback device according to the present invention when switching the switching unit from the first state to the second state, display a message for selecting whether to perform the switching on the first display unit.

[0013] Furthermore, the video playback device according to the present invention includes an analog conversion unit that outputs the first processed output video output from the processing unit as an analog output video.

[0014] Furthermore, the video playback device according to the present invention includes a storage unit, when an analog output set value is stored in the storage unit, output the first processed output video as an analog output video when an analog output set value is not stored in the storage unit, do not output the first processed output video as an analog output video.

[0015] Also, the program for a video playback device according to the present invention is a program for a video playback device that is executed on a video playback device including an external video input terminal, a processing unit, and a switching unit, The processing unit processes and outputs the input video input from the external video input terminal. The switching unit includes a first output terminal that can output to the first display unit. When the input video input from the external video input terminal is equal to or lower than a predetermined resolution, the first processing output video output from the processing unit is output from the first output terminal in a first state. When the input video input from the external video input terminal is greater than a predetermined resolution, the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit in a second state. The switching unit executes a switching process for switching between the two states.

Advantages of the Invention

[0016] According to the video playback device and the program for the video playback device according to the present invention, it is possible to appropriately display and output the input video input to the video playback device.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0018] FIG. 1 is a diagram showing the configuration of the karaoke system according to the present embodiment. The karaoke system in the present embodiment includes a karaoke device 2 (sometimes referred to as a commander) and a remote control device 1. The karaoke device 2 and the remote control device 1 are communicatively connected to form a network using the LAN 100 and the access point 130. The karaoke device 2 in the present embodiment corresponds to the video output device according to the present invention.

[0019] The karaoke device 2 includes a control unit 20 that performs various processes such as performance of music and display of background images. The control unit 20 can perform various processes such as reproduction of music information and reproduction of background images. Display video output terminals 21a and 21b for outputting video are connected to the control unit 20. Monitors 41a and 41b are connected to the display video output terminals 21a and 21b, respectively. An external video input terminal 22 for connecting an external device and capturing video is also connected. In the present embodiment, terminals conforming to the HDMI (registered trademark) standard are adopted for these terminals.

[0020] In addition, an analog video signal output terminal 23a and an analog audio signal output terminal 23b (actually, left and right stereo outputs) are connected to the control unit 20. It is possible to output an analog video signal and an analog audio signal from the analog video signal output terminal 23a and the analog audio signal output terminal 23b. Note that these analog video signal output terminal 23a and analog audio signal output terminal 23b are composed of pin terminals.

[0021] In addition, various components are connected to the control unit 20 via the interface 33. In the present embodiment, it has a mixing amplifier 34, a hard disk 35 as a storage unit for storing various information, various communication means (an infrared communication unit 36, a wireless LAN communication unit 37, a LAN communication unit 38), and an operation unit 39 for receiving various inputs from the user.

[0022] The mixing amplifier 34 mixes the music sound played by the control unit 20 and the singing voice input from the microphones 43a and 43b, and outputs the mixed sound to the speaker 42. In this embodiment, the infrared communication unit 36 is used to communicate with the remote control device 1 and receive music selection and the like from the remote control device 1. The LAN communication unit 38 functions as a communication means for connecting to the LAN 100 and establishing a network connection. Further, the karaoke device 2 of this embodiment also includes a wireless LAN communication unit 37, and it is also possible to establish a wireless network connection using the wireless LAN communication unit 37b instead of the wired network connection using the LAN communication unit 38.

[0023] Furthermore, in this karaoke device 2, in addition to the monitors 41a and 41b connected externally, various information can be displayed on the touch panel monitor 44. The touch panel monitor 44 is configured by superimposing a second display unit 44a (liquid crystal display unit) that displays the video formed by the control unit 20 and a touch panel 44b that outputs the position where a touch input is made. This touch panel monitor 44 is arranged on the front surface of the housing of the karaoke device 2 or the like, and functions as an input unit in the same manner as the operation unit 39 of the karaoke device 2 or the touch panel monitor 11 of the remote control device 1. The user can perform various operations on the karaoke device 2, such as directly reserving a song on the karaoke device 2 by selecting a song on the touch panel monitor 44.

[0024] With such a configuration, the karaoke device 2 executes various processes. As the main functions of the karaoke device 2, it can execute a song reservation process, a song playback process, and the like. The song reservation process is a process for designating and reserving a song based on a user's designation, and is executed in cooperation with the remote control device 1. The reservation information formed by the song selection process of the remote control device 1 is transmitted to the karaoke device 2. The karaoke device 2 registers the received reservation information in the reservation table in the memory. The song playback process is a process for playing back the reserved song, and is a process in which the song performance process and the lyrics display process are executed synchronously.

[0025] On the one hand, the remote control device 1 can execute a music selection process that searches for music based on an instruction from the user and transmits reservation information for the music with a playback instruction to the karaoke device 2. Further, the remote control device 1 can receive various information from the karaoke device 2 or the server device 5 connected to the Internet and execute various processes. In the present embodiment, an operation unit 17 and a touch panel monitor 11 are provided as a user interface for receiving various instructions from the user. The touch panel monitor 11 includes a display unit 11a and a touch panel 11b, and while displaying various interfaces on the display unit 11a, it can receive touch inputs from the user.

[0026] Furthermore, the remote control device 1 includes a memory 14 as a storage unit for storing a database, various programs, and various information generated during program execution that are required for the music selection process, and a remote control side control unit for comprehensively controlling these components. The remote control side control unit includes a CPU 15, a video control unit 13 for forming a video to be displayed on the touch panel monitor 11, a video RAM 12 for temporarily storing the video information to be displayed, and an operation processing unit 18 for interpreting inputs from the touch panel monitor 11 or the operation unit 17 and transmitting them to the CPU 15.

[0027] The remote control device 1 is wirelessly connected to the access point 130 by the wireless LAN communication unit 16 and thus connected to the network constituted by the LAN 100. Each remote control device 1 is pre-associated with a specific karaoke device 2. Various commands output from the remote control device 1 will be received by the associated karaoke device 2. Further, the remote control device 1 is provided with an infrared communication unit 19 and can transmit reservation information and the like at the time of music reservation to the infrared communication unit 36 on the karaoke device 2 side.

[0028] With the configuration of such a remote control device 1, various inputs from the user are received from the touch panel monitor 11 or the operation unit 17, and by providing various information through the display of the touch panel monitor 11 for video information, various processes such as a music selection process for transmitting reservation information output to the karaoke device 2 can be performed.

[0029] FIG. 2 is a diagram showing the configuration of the control unit 20 of the present embodiment. The control unit 20 of the present embodiment includes a switching unit 24, an SoC 25, a conversion unit 28, a sub-switching unit 27, and an analog conversion unit 26. The switching unit 23 can switch the videos output from the SoC 25 and the sub-switching unit 27 and output them to the display video output terminals 21a and 21b. Here, an SoC (System on a Chip) is a chip that integrates functions necessary for controlling the karaoke device 2, such as a CPU and a memory.

[0030] The SoC 25 corresponds to the "processing unit" in the present invention. Note that the processing unit may be implemented not in the form of the SoC 25 but in a form realized by a plurality of parts such as a CPU and a memory.

[0031] The SoC 25 is provided with a second-1 video output terminal 251a, a second-2 video output terminal 251b, and a second-3 video output terminal 251c as terminals for outputting videos. The signal output from the second-1 video output terminal 251a is a signal of the HDMI (registered trademark) standard and can be output up to a resolution of 4K30p. The video signal output from the second-1 video output terminal 251a is input to the first display video input terminal 24a of the switching unit 23.

[0032] From the second 2nd video output terminal 251b, a video signal complying with the LVDS (Low Voltage Differential Signaling) standard can be output up to a resolution of 1080p. In the present embodiment, the video signal output from the second 2nd video output terminal 251b is converted by the analog conversion unit 26 to a resolution of 480p and then converted to an analog video signal (CVBS (Composite Video, Blanking, and Sync) standard), and is output from the analog video signal output terminal 23a.

[0033] In FIGS. 2 to 4, for the sake of drawing convenience, the analog video signal output terminal 23a and the analog audio signal output terminal 23b are located within the control unit 20, but actually, as shown in FIG. 1, they are provided on the housing of the karaoke device 2 so that an external cable can be connected thereto.

[0034] The second 3rd video output terminal 251c outputs a video signal to the second display unit 44a that constitutes the touch panel monitor 44 provided in the karaoke device 2. Note that the SoC 25 can independently form the video signal output from the second 1st video output terminal 251a, the video signal output from the second 2nd video output terminal 251b, and the video signal output from the second 3rd video output terminal 251c, that is, it can form and output different video signals.

[0035] The switching unit 24 includes a first display video input terminal 24a and a second display video input terminal 24b. The switching unit 24 can be switched between a first state and a second state. In the first state, the display video signal output from the SoC 25 is output to the display video output terminals 21a and 21b. In other words, in the first state, the first display video input terminal 24a is connected to the display video output terminals 21a and 21b, and the display video signal input to the first display video input terminal 24a is output to the display video output terminals 21a and 21b.

[0036] In the second state, the external video signal output from the sub-switching unit 27 is output to the display video output terminals 21a and 21b. In other words, in the second state, the second display video input terminal 24b is connected to the display video output terminals 21a and 21b, and the external video signal input to the second display video input terminal 24b is output to the display video output terminals 21a and 21b. In the present embodiment, the switching unit 24 is controlled to perform the switching under the control of the SoC 25.

[0037] Next, the external video signal will be described. The karaoke device 2 of the present embodiment can capture an external video signal from the outside and display it on the monitors 41a and 41b or the touch panel monitor 44. Therefore, by connecting various external video playback devices such as a DVD player and a mobile terminal such as a smartphone to the external video input terminal 22 of the karaoke device 2, it is possible to display the video played by the external video playback device on the karaoke device 2.

[0038] The external video input terminal 22 is a terminal conforming to the HDMI (registered trademark) standard, and the input external video signal is input to the video input terminal 272 of the sub-switching unit 27. The sub-switching unit 27 can switch and output the input external video signal to the first-1 video output terminal 271a or the first-2 video output terminal 271b. In the present embodiment, the sub-switching unit 27 can determine the presence or absence of the external video signal input to the video input terminal 272 based on the presence or absence of the 5V signal in the HDMI (registered trademark) standard.

[0039] The sub-switching unit 27 determines that when the 5V signal is Low, the external video signal is not input, and when the 5V signal is High, the video input signal is input. The sub-switching unit 27 can also determine the resolution of the input external video signal. The presence or absence and resolution of the external video signal determined by the sub-switching unit 27 are output to the SoC 25.

[0040] The external video signal output from the first-first video output terminal 271a of the sub-switching unit 27 is input to the second display video input terminal 24b of the switching unit 24. Also, the external video signal output from the first-second video output terminal 271b is output to the conversion unit 28. The conversion unit 28 converts the external video signal of the HDMI (registered trademark) standard output from the first-second video output terminal 271b into an external video signal of the CSI standard and outputs it to the video capture terminal 252 of the SoC 25.

[0041] The SoC 25 can form and output an internal video signal such as a background video and a lyric video during music playback, and an internal audio signal such as music sound and sound effects. Also, it is possible to output by combining the external video signal (which may include an external audio signal) input to the video capture terminal 252 with the formed internal video signal.

[0042] Here, the SoC 25 of this embodiment has an upper limit (720p) set for the resolution of the external video signal input to the video capture terminal 252. When an external video signal is input to the SoC 25 exceeding this resolution, no video signal based on the external video signal is output from the SoC 25, and the part of the external video signal that should be output from the SoC 25 becomes a black screen.

[0043] In such a case, the user using the karaoke device 2 may mistakenly think that there is a problem with the karaoke device 2 or the external video playback device connected to the external video input terminal 22. This embodiment is in view of such circumstances, and one of its purposes is to appropriately display and output the external video signal input to the external video input terminal 22.

[0044] The karaoke device 2 of this embodiment can be used by switching between two settings (capture setting and passthrough setting) for the output of an external video signal. This setting can be switched using various user interfaces of the karaoke system, such as the operation unit 39 of the karaoke device 2 and the touch panel monitor 11 of the remote control device 1. Note that it is preferable to make the setting be performed at the karaoke store according to the usage form of the karaoke store so that customers cannot (or it is difficult to) change the setting (so-called "service man mode").

[0045] As a setting method, it is conceivable that a password is required when changing the setting, or the setting can be changed by performing a predetermined operation. As the predetermined operation, for example, logging in to the karaoke device 2 using login information known to the owner or administrator of the karaoke device 2 can be mentioned.

[0046] In this embodiment, when the capture setting is set, it is stored in the SoC 25 as the first set value. On the other hand, when the passthrough setting is set, it is stored in the SoC 25 as the second set value. The SoC 25 can determine whether the capture setting or the passthrough setting is set based on the stored value (the first set value or the second set value).

[0047] Also, the karaoke device 2 of this embodiment can be set in the same way as the capture setting and the passthrough setting regarding the availability of analog output for the analog video signal output terminal 23a and the analog audio signal output terminal 23b. The set availability of analog output is stored in the SoC 25 as an analog output set value.

[0048] Next, the capture setting and the passthrough setting of this embodiment will be described. FIG. 3 is a diagram for explaining the operation of the control unit 20 at the time of the capture setting of this embodiment. At the time of the capture setting, the sub-switching unit 27 outputs the external video signal input to the video input terminal 272 to the first-second video output terminal 271b.

[0049] The SoC 25 outputs a display video signal in which an internal video signal is superimposed on an external video signal input from the video capture terminal 252 to the second-1 video output terminal and the second-2 video output terminal 251b. Note that the SoC 25 may output a display video signal without superimposing the internal video signal on the external video signal. Also, the SoC 25 may not output the display video signal to the second-2 video output terminal 251b.

[0050] Also, the switching unit 24 outputs the display video signal input to the first display video input terminal 24a from the display video output terminals 21a and 21b. Therefore, from the display video output terminals 21a and 21b, a display video signal in which an external video signal and an internal video signal formed by the SoC 25 are superimposed is output. Also, from the second-3 video output terminal 251c, a display video signal using the external video signal and the internal video signal is output and displayed on the second display unit 44a. Note that the display video signal output from the second-1 video output terminal 251a and the second-2 video output terminal 251b and the display video signal output from the second-3 video output terminal may or may not be the same.

[0051] FIG. 4 is a diagram for explaining the operation of the control unit 20 at the time of pass-through setting in the present embodiment. At the time of pass-through setting, the sub-switching unit 27 outputs the external video signal input to the video input terminal 272 to the first-1 video output terminal 271a. Also, the switching unit 24 outputs the display video signal input to the second display video input terminal 24b from the display video output terminals 21a and 21b. Therefore, from the display video output terminals 21a and 21b, the external video signal is output as the display video signal.

[0052] Also, from the second-3 video output terminal 251c, a display video signal using the internal video signal formed by the SoC 25 is output and displayed on the second display unit 44a. At the time of pass-through setting, the external video signal input from the external video input terminal 22 is not input to the SoC 25.

[0053] In the capture setting and the pass-through setting, the switching unit 24 and the sub-switching unit 27 will be switched. In this embodiment, the switching instruction is performed by the SoC 25. Note that the switching instruction may be performed not by the SoC 25 but by, for example, another component within the control unit 20 such as the sub-switching unit 27, or an external component of the control unit 20.

[0054] Next, the switching process for switching the capture setting and the pass-through setting will be described. FIG. 5 is a flowchart showing the switching process of this embodiment. The SoC 25 determines whether it is a capture setting or a pass-through setting based on the stored value (the first set value or the second set value) (S101). If it is set to the pass-through setting (storing the second set value) (S101: pass-through setting), it switches to the first pass-through setting described with reference to FIG. 4 (S102). In the first pass-through setting, the external video signal input from the external video input terminal 22 is output from the display video output terminals 21a and 21b without passing through the SoC 25.

[0055] FIG. 10 shows the screen configuration for various settings and various outputs. FIG. 10(B) is the screen configuration in the first pass-through setting. FIG. 10(B1) is the monitor output output from the display video output terminals 21a and 21b. At the time of the first pass-through setting, only the external video signal is displayed in the monitor output. FIG. 10(B2) is the analog output output from the analog video signal output terminal 23a. FIG. 10(B3) is the touch panel monitor output output to the second display unit 44a.

[0056] Both the analog output and the touch panel monitor output are black screens (also referred to as "no video output period" or "blackout"). Thus, at the time of the first pass-through setting, the external video signal is displayed and output on the monitors 41a and 41b, and the outputs to the analog output and the touch panel monitor 44 are black screens. Note that the output to the touch panel monitor may include the video signal portion generated by the SoC 25 and the black screen portion instead of all being black screens.

[0057] On the other hand, when the capture setting (storing the second set value) is set (S101: capture setting), it switches to the capture setting described with reference to FIG. 2 (S103). FIG. 10(A) shows the screen configuration in the capture setting. FIG. 10(A1) shows the monitor output output from the display video output terminals 21a and 21b. FIG. 10(A2) shows the analog output output from the analog video signal output terminal 23a. FIG. 10(A3) shows the touch panel monitor output output to the second display unit 44a.

[0058] For any of FIGS. 10(A1) to 10(A3), the external video signal and the internal video signal are combined and displayed. In the present embodiment, the internal video signal is superimposed on the external video signal. In FIGS. 10(A1) to 10(A3), the internal video signal forms a part of the screen, but the internal video signal can be superimposed and displayed on the entire screen or an appropriate area. Also, the internal video signal may have different displays in FIGS. 10(A1) to 10(A3). As described above, at the time of the capture setting, the outputs to the monitors 41a and 41b, the analog output, and the touch panel monitor 44 are screens combining the external video signal and the internal video signal.

[0059] Here, as described above, the SoC 25 of the present embodiment has an upper limit on the resolution of the external video signal that can be captured from the video capture terminal 252. When the upper limit is exceeded during the capture setting, the external video signal part of the display video signal becomes a black screen. Therefore, the user using the karaoke device 2 may mistakenly think that there is a problem with the karaoke device 2 or the external video playback device connected to the external video input terminal 22.

[0060] The karaoke device 2 of this embodiment is based on the above-described matters and aims to appropriately display and output an external video signal. Therefore, in the switching process, the resolution of the external video signal is acquired (S104). In this embodiment, the resolution of the external video signal is determined by the sub-switching unit 27 and output to the SoC 25. When the resolution of the external video signal is equal to or lower than a predetermined resolution (S105: No), the switching process ends.

[0061] On the other hand, when the resolution of the external video signal is greater than a predetermined resolution (S105: Yes), it is determined whether the analog output setting is valid. As described above, whether analog output is possible or not is stored in the SoC 25 as an analog output setting value. The SoC 25 can determine whether the analog output setting is valid or invalid by referring to the analog output setting value. When the analog output setting is valid (S106: Yes), the SoC 25 causes the warning screen 1-1 to be displayed on the display video output terminals 21a and 21b (S107).

[0062] FIG. 7(A) is a diagram showing the warning screen 1-1. On the warning screen 1-1, since the external video signal has a resolution outside the input range (a resolution greater than the predetermined resolution), no video based on the external video signal is output to the monitors 41a and 41b, the touch panel monitor 44, and the analog video signal output terminal 23a, and a message asking whether to switch to the "pass-through setting" is displayed. Note that the message is provided with a footnote marked with "*". On the warning screen 1-1, as a footnote, it is described that when the pass-through setting is made, the external video signal is not displayed and output from the touch panel monitor 44 and the analog video signal output terminal 23a.

[0063] On the other hand, when the analog output setting is invalid (S106: No), the SoC 25 causes the warning screen 1-2 to be displayed on the display video output terminals 21a and 21b (S108). FIG. 7(B) is a diagram showing the warning screen 1-2. On the warning screen 1-2, since the external video signal has a resolution outside the input range (a resolution larger than a predetermined resolution), no video based on the external video signal is displayed on the monitors 41a and 41b and the touch panel monitor 44, and a message asking whether to switch to the "pass-through setting" is displayed. Note that the difference between the warning screen 1-1 and the warning screen 1-2 is the presence or absence of a message regarding analog video output in the footnote.

[0064] The user who has checked the warning screens 1-1 and 1-2 selects and operates the "Yes" button 411 or the "No" button 412 displayed on the warning screens 1-1 and 1-2. The selection operation can be performed using the operation unit 39 of the karaoke device 2, the touch panel monitor 11 of the remote control device 1, the operation unit 17, etc. When the "Yes" button 411 is operated (S109: Yes), the SoC 25 changes from the capture setting to the second pass-through setting (S110).

[0065] FIG. 10(C) shows the screen configuration in the second pass-through setting. FIG. 10(C1) is the monitor output output from the display video output terminals 21a and 21b. In the second pass-through setting, only the external video signal is displayed in the monitor output. FIG. 10(C2) is the analog output output from the analog video signal output terminal 23a. FIG. 10(C3) is the touch panel monitor output output to the second display unit 44a. Both the analog output and the touch panel monitor output display the internal video signal formed by the SoC 25. Thus, in the second pass-through setting, the external video signal is displayed and output on the monitors 41a and 41b, and the screens based on the internal video signal formed by the SoC 25 are displayed on the analog output and the touch panel monitor 44.

[0066] On the other hand, when the NO button 412 is operated (S109: No), the warning screen 2 is displayed on the monitors 41a and 41b. FIG. 7(C) is a diagram showing the warning screen 2 according to the present embodiment. On the warning screen 2, a message indicating that the resolution of the external video playback device connected to the external video input terminal 22 is to be reduced to 1280×720p or 720×480p (equal to or lower than a predetermined resolution) is displayed. The user who has confirmed the message ends the switching process by operating the OK button 413.

[0067] As described above, in the switching process according to the present embodiment, when the capture is set and the resolution of the external video signal is larger than the predetermined resolution and inappropriate as the input to the SoC 25, by changing to the pass-through setting (second pass-through setting), it is possible to appropriately display the external video signal.

[0068] As described above, the change to the second pass-through setting is made when the pass-through setting is enabled and the resolution of the external video signal is larger than the predetermined resolution. Once the setting is changed to the second pass-through setting, if an external video signal with a resolution equal to or lower than the predetermined resolution is input, it is not in line with the original usage method to remain in the second pass-through setting. As described above, the selection of whether to set the karaoke device 2 to the pass-through setting or the capture setting is made by the owner or administrator of the karaoke device 2 according to the environment of the store or the like.

[0069] In the pass-through setting, the external video signal input from the external video input terminal 22 can be displayed on the monitors 41a and 41b regardless of the resolution, but the internal video signal generated by the SoC 25 cannot be superimposed on the external video signal. In the capture setting, the external video signal input from the external video input terminal 22 is limited to a resolution equal to or lower than the predetermined resolution, but the internal video signal generated by the SoC 25 can be superimposed on the external video signal. Therefore, maintaining the second pass-through setting may not conform to the intention of the owner or administrator of the karaoke device 2 and is not preferable. Note that, as a modification, the second pass-through setting may be maintained.

[0070] Therefore, in the karaoke device 2 of the present embodiment, a reset process is executed. FIG. 6 is a flowchart showing the reset process of the present embodiment. When the input of the external video signal is interrupted (S201: Yes), the processes of S202 to S204 are executed. Note that the reset process may be executed when a signal indicating the end of the input of the external video signal is received.

[0071] In the present embodiment, the presence or absence of the external video signal is determined by the sub-switching unit 27. The presence or absence of the external video signal is determined by the fact that the 5V signal in the HDMI (registered trademark) standard has changed from High to Low as described above. When the input of the external video signal is interrupted (S201: Yes), it is determined whether the current setting is a capture setting or a pass-through setting (S202). The setting is determined based on the set value (first set value: capture setting, second set value: pass-through setting) stored in the SoC 25.

[0072] When it is in the capture setting (S202: capture setting) and the second pass-through setting is in effect (S203: Yes), the setting is changed to the capture setting (S204). Thus, even when the setting is temporarily changed to the second pass-through setting (S110) in the switching process, it is possible to return to the original capture setting by performing the reset process.

[0073] [First Modification Example] Next, various modification examples will be described. FIGS. 8 and 9 are diagrams showing the switching process and warning screens 1-3 for other embodiments. The HDMI (registered trademark) signal, which is an external input signal, may have encryption by HDCP (High-Bandwidth Digital Content Protection) enabled to prevent unauthorized copying. For an external input signal for which HDCP is enabled, output from the analog video signal output terminal 23a cannot be performed.

[0074] In the first modification example, when the HDCP of the external video signal is valid, a warning screen is separately prepared to easily alert the user. FIG. 8 is a diagram showing the switching process in the first modification example. The switching process described in FIG. 5 is different only in the processes of S121 and S122 added in FIG. 8, and the other processes are the same.

[0075] When the resolution of the external video signal is larger than a predetermined resolution (S105: Yes), it is determined whether the HDCP of the external video signal is valid (S121). When the HDCP of the external video signal is valid (S121: Yes), warning screens 1-3 are displayed on the monitors 41a and 41b (S122).

[0076] FIG. 9 is a diagram showing warning screens 1-3 of another embodiment. A message indicating that display output cannot be performed due to the HDCP of the external video signal being valid is displayed on warning screens 1-3. By checking warning screens 1-3, the user can take measures such as changing the content being played on the external video playback device to content with invalid HDCP.

[0077] As described above, the video playback device of the present embodiment has been described by taking the karaoke device 2 as an example. However, the video playback device is not limited to the karaoke device 2, and may be various information processing devices such as the remote control device 1, a personal computer, or a game machine. Also, a video playback device program that is executed by such various information processing devices and realizes the same video switching as the karaoke device 2 of the present embodiment also belongs to the scope of the present invention.

Description of Reference Numerals

[0078] 1: Remote control device 28: Conversion unit 2: Karaoke device 33: Interface 5: Server device 34: Mixing amplifier 11: Touch panel monitor 35: Hard disk 11a: Display unit 36: Infrared communication unit 11b: Touch panel 37: Wireless LAN communication unit 12: Video RAM 37b: Wireless LAN communication unit 13: Video control unit 38: LAN communication unit 14: Memory 39: Operation unit 15: CPU 41a, 41b: Monitor 16: Wireless LAN communication unit 42: Speaker 17: Operation unit 43a, 43b: Microphone 18: Operation processing unit 44: Touch panel monitor 19: Infrared communication unit 44a: Second display unit 20: Control unit 44b: Touch panel 21a: Display video output terminal 130: Access point 21b: Display video output terminal 251a: Second-1 video output terminal 22: External video input terminal 251b: Second-2 video output terminal 23: Switching unit 251c: Second-3 video output terminal 23a: Analog video signal output terminal 252: Video capture terminal 23b: Analog audio signal output terminal 271a: 1 video output terminal 24: Switching unit 271b: 2 video output terminals 24a: First display video input terminal 272: Video input terminal 24b: Second display video input terminal 411: Yes button 26: Analog conversion unit 412: No button 27: Sub-switching unit 413: OK button

Claims

1. An image playback device comprising an external video input terminal, a processing unit, and a switching unit, wherein the processing unit processes and outputs an input video input from the external video input terminal, the switching unit includes a first output terminal capable of outputting to a first display unit, when the input video input from the external video input terminal is equal to or lower than a predetermined resolution, the switching unit outputs a first processed output video output from the processing unit from the first output terminal in a first state, and when the input video input from the external video input terminal is greater than a predetermined resolution, the switching unit executes a switching process to switch to a second state in which the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit. Image playback device.

2. The image playback device further comprises a storage unit, when a first set value is stored in the storage unit, the switching process is executed, and when a second set value is stored in the storage unit, the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit. The image playback device according to claim 1.

3. The image playback device further comprises a second display unit, when the switching unit is in the first state, the input video input from the external video input terminal is processed into a second processed output video and displayed on the second display unit, and when the switching unit is in the second state, a predetermined video is displayed on the second display unit. The image playback device according to claim 1.

4. The image playback device further comprises a storage unit, when a first set value is stored in the storage unit, the switching process is executed, and when a second set value is stored in the storage unit, a predetermined video is not displayed on the second display unit. The image playback device according to claim 3.

5. The image playback device is configured to receive an operation for storing a first set value or a second set value in the storage unit. The image playback device according to claim 2 or claim 4.

6. When the switching unit switches from the first state to the second state, the image playback device is configured to display a message for allowing selection of whether to perform the switching on the first display unit. The image playback device according to claim 1.

7. The image playback device further comprises an analog conversion unit configured to output the first processed output video output from the processing unit as an analog output video. The image playback device according to claim 1.

8. The image playback device further comprises a storage unit, when an analog output set value is stored in the storage unit, the first processed output video is output as an analog output video, and when the analog output set value is not stored in the storage unit, the first processed output video is not output as an analog output video. The image playback device according to claim 7.

9. A video playback device program executed in a video playback device including an external video input terminal, a processing unit, and a switching unit, The processing unit processes and outputs an input video input from the external video input terminal, The switching unit includes a first output terminal capable of outputting to a first display unit, When the input video input from the external video input terminal is equal to or lower than a predetermined resolution, a first state in which the first processed output video output from the processing unit is output from the first output terminal, When the input video input from the external video input terminal is greater than a predetermined resolution, a second state in which the input video input from the external video input terminal is output from the first output terminal without passing through the processing unit, and a switching process for switching between the two states is executed A video playback device program.

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