JP2015211438A - Reproduction device, television receiver, control method of reproduction device, control program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily utilize functions of a reproduction device at a maximum.SOLUTION: The reproduction device includes: a recommend creation section (25) for creating a recommend which recommends switching from a terminal to be utilized for a connection with a supply device (2) to terminals (13a-13c) capable of receiving high-quality video images if a terminal (13d) being utilized for the connection with the supply device (2) cannot receive a high-quality video image to be supplied from the supply device (2); a data acquisition section (21) for switching video/audio data to be supplied from the supply device (2) to video/audio data of a low-quality video image in the case as mentioned above; and a reproduction control section (22) which reproduces the acquired low-quality video image and reproduces the recommend in the case as mentioned above.

Description

  The present invention relates to a playback device, a television receiver, a playback device control method, and a control device that are connected to a supply device that supplies video / audio data and reproduce at least video or audio based on the video / audio data acquired from the supply device The present invention relates to a program and a recording medium.

  In recent years, the video standard has four times as many pixels (so-called 4K) or 16 times as many pixels (so-called 8K) as the current high-definition television broadcasting (High Definition television: HDTV (pixel number: horizontal 1920 × vertical 1080)). Televisions that can play back images of Super Hi-Vision SHV are also being developed.

  Since 4K and 8K video services are currently in a transitional period, various data formats are used depending on the purpose of use, communication environment, and the like. For this reason, a playback device such as a television may receive video / audio data in a non-compatible format. In this case, there arises a problem that the playback apparatus cannot normally play back video and audio.

  Therefore, as a means for solving this problem, for example, there is a technique described in Patent Document 1. Specifically, in Patent Document 1, when a sink device (playback device) receives video / audio data in a non-compatible format from a source device (supply device), a different EDID (Extended Display Identification Data) is provided to the source device. Is read, and the corresponding format of the sink device recognized by the source device is updated to transmit the audio / video data in a format compatible with the sink device to the source device.

JP 2012-199643 A (released on October 18, 2012)

  As described above, since various formats are used for 4K and 8K video / audio data, a reproducing apparatus having a plurality of terminals suitable for each format has been developed.

  For example, as a terminal, the first terminal compatible with the high quality video (4K60P Y, Cb, Cr 4: 4: 4) format and the (relatively) low quality video (4K60P Y, Cb, Cr 4: 2: 0) A playback device having a second terminal corresponding to a format has been developed. Here, the second terminal is compatible with high function (HDCP2.2), and the first terminal is not compatible with high function. In the future, all terminals will be compatible with both 4K60P Y, Cb, Cr 4: 4: 4 and HDCP2.2, but the current situation is the transition period of 4K, and the chip specifications are not sufficient. It is designed so that the entire playback device can handle both, with each terminal having its strengths and weaknesses.

  The operation when this playback apparatus is connected to a supply apparatus capable of supplying video data in a high quality video format is as follows. When the supply device is connected to the first terminal, the supply device detects that the first terminal of the playback device is compatible with the high quality video format, and transmits the high quality video data to the playback device. On the other hand, when the supply device is connected to the second terminal, the supply device detects a format (low quality video format) that can be accepted by the second terminal of the playback device, and transmits the low quality video data to the playback device.

  Here, when a supply device capable of supplying high-quality video data is connected to the second terminal, and the supply device erroneously transmits high-quality video data, the playback device can be It is possible to receive and play back video data in a format acceptable by the terminal (low quality video data). However, the quality of the reproduced video is not the highest quality video (high quality video) that can be reproduced by the playback device. At this time, since the playback device normally plays back video and does not notify the user of anything, the playback device must be able to determine the quality of the video data by looking at the video displayed on the screen. There is a problem that it is not known whether or not the highest quality video that can be played is being played.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a playback device, a television receiver, and a playback device control method that allow the user to make maximum use of the functions of the playback device. It is to realize a control program and a recording medium.

  In order to solve the above problem, a playback device according to one embodiment of the present invention acquires a plurality of connectors and video / audio data supplied from a supply device connected to any of the plurality of connectors. Supplyed from the supply device in a playback device comprising: an acquisition unit; and a playback unit that plays back one or both of the video and audio represented by the video / audio data based on the video / audio data acquired by the acquisition unit When the format of the video / audio data to be received is a format that cannot be accepted by the first connector used for connection with the supply device, the connector used for connection with the supply device is used as the video / audio data. A recommendation creating means for creating a recommendation that recommends switching to a second connector that can accept the format. The video / audio data supplied from the apparatus is switched to video / audio data in a format acceptable by the first connector, and the playback means is the video / audio data acquired by the acquisition means in the above case, Based on video / audio data in a format acceptable by the first connector, one or both of video and audio are reproduced, and a recommendation created by the recommendation creating means is reproduced.

  In order to solve the above problem, a playback device according to one embodiment of the present invention includes a plurality of connectors and video and audio data supplied from a supply device connected to any of the plurality of connectors. A playback device comprising: an acquisition unit that acquires; and a playback unit that plays back one or both of video and audio represented by the video and audio data based on the video and audio data acquired by the acquisition unit; The format of the video / audio data acquired by the acquisition unit is not the specific format, and one of the formats of the video / audio data that can be accepted by the third connector used for the connection is not the specific format, and A fourth connector that cannot accept the specific format, and is a fourth connector that can accept the format of the video / audio data acquired by the acquisition means. When there is a splicer, it comprises a recommendation creating means for creating a recommendation that recommends switching the connector used for connection with the supply device to the fourth connector, and in the above case, the reproducing means obtains the acquisition Based on the video / audio data acquired by the means, one or both of video and audio are reproduced, and the recommendation created by the recommendation creating means is reproduced.

  In order to solve the above problems, a method for controlling a playback device according to one embodiment of the present invention includes a plurality of connectors and a video supplied from a supply device connected to any of the plurality of connectors. A control method for a playback device, comprising: acquisition means for acquiring audio data; and playback means for playing back one or both of video and audio represented by the video / audio data based on the video / audio data acquired by the acquisition means When the format of the video / audio data supplied from the supply device is a format that cannot be accepted by the first connector used for connection to the supply device, the format is used for connection to the supply device. A recommendation creating step for creating a recommendation that recommends switching the connector to a second connector that can accept the format of the video and audio data; Switching the video / audio data supplied from the supply device to video / audio data in a format acceptable by the first connector, and acquiring the video / audio data from the supply device; and The video and audio data acquired in the acquisition step, wherein one or both of video and audio are reproduced based on the video and audio data in a format acceptable by the first connector, and the recommendation creating step And a playback step for playing back the recommendation created in the above.

  In order to solve the above problems, a method for controlling a playback device according to one embodiment of the present invention includes a plurality of connectors and a video supplied from a supply device connected to any of the plurality of connectors. A control method for a playback device, comprising: acquisition means for acquiring audio data; and playback means for playing back one or both of video and audio represented by the video / audio data based on the video / audio data acquired by the acquisition means In the acquisition step, the video and audio data is acquired from the supply device via the third connector, and one of the formats of the video and audio data that can be accepted by the third connector is set as the specific format. The format of the video / audio data acquired in step 4 is not the specific format and is a fourth connector that cannot accept the specific format. If there is a fourth connector that can accept the format of the audiovisual data acquired in the acquisition step, a recommendation recommending that the connector used for connection with the supply device be switched to the fourth connector. A recommendation creating step for creating a video, and in the above case, based on the video / audio data acquired in the acquiring step, one or both of the video and audio are played, and the recommendation created in the recommendation creating step is played back A reproduction step.

  According to one aspect of the present invention, there is an effect that a user can easily use the functions of the playback device to the maximum.

It is a block diagram which shows the principal part structure of the reproducing | regenerating apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the connection relationship between the said reproducing | regenerating apparatus and a supply apparatus, and the screen which the said reproducing | regenerating apparatus displays. It is a figure which shows an example of the connection relationship between the said reproducing | regenerating apparatus and a supply apparatus, and the screen which the said reproducing | regenerating apparatus displays. It is a sequence diagram which shows an example of the flow of the recommendation display process which the said reproducing | regenerating apparatus performs. It is a figure which shows an example of the connection relationship between the said reproducing | regenerating apparatus and a supply apparatus, and the screen which the said reproducing | regenerating apparatus displays. It is a flowchart which shows an example of the flow of the flag setting process which the said reproducing | regenerating apparatus performs. It is a sequence diagram which shows an example of the flow of the reproduction | regeneration processing which the said reproducing | regenerating apparatus performs. It is a figure which shows an example of the connection relationship between the said reproducing | regenerating apparatus and a supply apparatus, and the screen which the said reproducing | regenerating apparatus displays. It is a sequence diagram which shows an example of the flow of the recommendation display process which the said reproducing | regenerating apparatus performs. It is a figure which shows an example of the text template of the recommendation regarding the quality of video / audio data. It is a figure which shows an example of the text template of the recommendation regarding the kind of video / audio data. It is a figure which shows an example of the connection relationship between the reproducing | regenerating apparatus and supply apparatus which concern on Embodiment 2 of this invention, and the screen which the said reproducing | regenerating apparatus displays. It is a figure which shows an example of the connection relationship between the said reproducing | regenerating apparatus and a supply apparatus, and the screen which the said reproducing | regenerating apparatus displays.

Embodiment 1
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 11 as follows.

  FIG. 1 is a block diagram showing an example of a main configuration of a playback apparatus according to Embodiment 1 of the present invention. The playback device 1 is connected to a supply device 2 that supplies video / audio data, and plays back one or both of video and audio represented by the video / audio data acquired from the supply device 2. The playback device 1 is, for example, a television receiver, a PC, a tablet terminal, a smartphone, a portable information terminal, a portable game machine, or the like. As shown in FIG. 1, the playback device 1 includes a control unit 11, a storage unit 12, a connection unit 13, a display unit 14, an audio output unit 15, and an operation unit 16.

  The connection unit 13 is an interface for exchanging data by connecting to the supply device 2 or the like that supplies video / audio data by an HDMI (High-Definition Multimedia Interface) (registered trademark) cable or the like. In this embodiment, the connection part 13 is comprised from four terminals of terminal 13a-d, as shown in FIG. In this embodiment, the terminals 13a to 13d are HDMI terminals, and the terminals 13a to 13c are terminals (second connectors) corresponding to a high quality video (4K60P Y, Cb, Cr 4: 4: 4) format. , The third connector), and the terminal 13d is a terminal (first connector, which is relatively low quality) corresponding to the low quality video (4K60P Y, Cb, Cr 4: 2: 0) format. 4th connector).

  In the present embodiment, the terminals 13a to 13d are HDMI terminals, but are not limited thereto. For example, the terminals 13a to 13d may be DVI (Digital Visual Interface) terminals or DisplayPort terminals. Further, in the present embodiment, the connection unit 13 includes a terminal connected to the supply device 2 and the like by a physical cable (wired), but is not limited thereto. For example, the connection unit 13 may include a wireless communication unit that performs wireless communication with the supply device 2 and the like. Further, the number of terminals included in the connection unit 13 is not limited to four, and may be two or more.

  In summary, the connection unit 13 includes at least two connectors (such as a terminal or a wireless communication unit), and the two connectors have different formats of acceptable video / audio data. Specifically, the above two connectors include sampling frequency, color depth (Deep color), resolution, number of frames, audio quality (for example, high resolution support / non-support) MHL (Mobile High-definition Link), ARC (Audio The format of the acceptable video / audio data is different for at least one of “Return Channel” and the like.

  “Acceptable video / audio data formats differ from each other” means, for example, that the degree of quality (upper limit (value)) of video / audio data acceptable by two connectors is different. Also, for example, it means that the format (standard) types of video and audio data that can be accepted by the two connectors are different. Also, for example, it means that the types of interface standards supported by the two connectors are different. Specifically, one connector can accept a certain data format (corresponding to a certain standard), but the other connector cannot accept the certain data format (the certain It is not compatible with the standard).

  Further, for example, one connector (second connector, third connector) corresponds to a higher format, and the other connector (first connector, fourth connector) The lower format may be supported. Here, “upper / lower” means that one connector corresponding to the upper format also corresponds to the lower format, and the other connector corresponding to the lower format is higher. This means that the format is not supported. For example, the high quality video format is an upper format and the low quality video format is a lower format. In addition, for example, an MHL compatible terminal is a terminal corresponding to a higher format, and a non-MHL compatible terminal is a terminal corresponding to a lower format.

  The highest format that can be accepted by the terminal is referred to as the best format. For example, the best format for terminals compatible with the high quality video format is the high quality video format, and the best format for terminals compatible with the MHL is the MHL format.

  Note that the video / audio data is data including at least one of video data and audio data.

  The supply device 2 supplies video / audio data to the playback device 1. The supply device 2 is, for example, a recorder, a digital video camera, a digital camera, a server, a storage device, an STB (Set Top Box), a game machine, a smartphone, a portable information terminal, or the like.

  The display unit 14 displays an image in accordance with an instruction from the control unit 11. The display unit 14 only needs to display an image in accordance with an instruction from the control unit 11, and for example, an LCD (liquid crystal display), an organic EL display, a plasma display, or the like can be applied.

  The audio output unit 15 receives an electrical signal from the control unit 11, converts the received electrical signal into sound, and outputs (reproduces) the sound to the outside of the playback device 1. The audio output unit 15 is a so-called speaker.

  The operation unit 16 is for a user to input an instruction signal to the playback device 1 and operate the playback device 1. The operation unit 16 may be configured by an input device such as an operation button. The operation unit 16 may be a touch panel integrated with the display unit 14. The operation unit 16 may be a remote control device such as a remote controller that is separate from the playback device 1.

  The control unit 11 performs various calculations by executing a program read from the storage unit 12 to a temporary storage unit (not shown), and comprehensively controls each unit included in the playback device 1. .

  In the present embodiment, the control unit 11 includes, as functional blocks, a data acquisition unit (acquisition unit) 21, a reproduction control unit (reproduction unit) 22, an EDID setting unit (impersonation unit) 23, a connection control unit 24, a recommendation creation unit ( The configuration includes a recommendation creating unit 25 and a flag setting unit (setting unit) 26. Each functional block (21 to 26) of the control unit 11 includes a CPU (central processing unit) that stores a program stored in a storage device realized by a ROM (read only memory) or the like (RAM (random access memory)). This can be realized by reading out and executing the temporary storage unit realized by the above.

  The data acquisition unit 21 acquires video / audio data from the supply device 2 via the connection unit 13. The data acquisition unit 21 outputs the (normally) acquired video / audio data to the reproduction control unit 22. Further, when the video / audio data is normally acquired from the supply device 2, the data acquisition unit 21 notifies the recommendation creation unit 25 to that effect. Hereinafter, this notification is referred to as a data acquisition notification.

  When the connection unit 13 cannot recognize the video / audio data (when the video / audio data cannot be normally acquired from the supply device 2 or when the video / audio data cannot be acquired from the supply device 2), the data acquisition unit 21 notifies that fact. The EDID setting unit 23, the connection control unit 24, and the recommendation creation unit 25 are notified. Hereinafter, this notification is referred to as a recognition impossible notification.

  The playback control unit 22 acquires video / audio data from the data acquisition unit 21 and plays back one or both of video and audio represented by the video / audio data based on the acquired video / audio data. Specifically, the playback control unit 22 outputs the acquired video data and audio data to the display unit 14 and the audio output unit 15, respectively, and displays the video represented by the video data on the display unit 14 or represents the audio data. Audio is output from the audio output unit 15.

  In addition, when receiving a later-described recommendation from the recommendation creating unit 25, the playback control unit 22 plays back one or both of video and audio and plays the received recommendation. Specifically, the reproduction control unit 22 causes the display unit 14 to display the received recommendation superimposed on the video based on the video data acquired from the data acquisition unit 21. Further, the playback control unit 22 may cause the voice output unit 15 to output the recommendation created by the recommendation creation unit 25 as a voice. Note that, when the recommendation non-display flag 31 stored in the storage unit 12 is TRUE, the reproduction control unit 22 does not reproduce the recommendation (details will be described later).

  The EDID setting unit 23 sets EDID indicating the format of video / audio data that can be received by each terminal 13a to 13d. The EDID setting unit 23 stores the set EDID in the storage unit 12. For example, the EDID is a data string listing information (for example, a format ID for uniquely identifying the format) indicating the format of video / audio data that can be accepted by the terminal.

  In the present embodiment, the EDID setting unit 23 disguises the EDID of each terminal in advance. Specifically, the EDID setting unit 23 specifies the (topmost) format of video / audio data that can be accepted by the entire playback apparatus 1 (in any of the terminals 13a to 13d). The EDID setting unit 23 generates an EDID indicating a format that can be supported by the specified playback apparatus 1 as a whole, and sets the generated EDID (impersonated EDID (impersonated format information)) as an EDID of each terminal. The EDID setting unit 23 stores the set disguise EDID in the storage unit 12. In other words, the EDID setting unit 23 temporarily changes the EDID of the first connector to a disguised EDID indicating a format of video / audio data that can be accepted by the second connector.

  More specifically, in the present embodiment, the terminals 13a to 13c are terminals compatible with a high quality video (4K60P Y, Cb, Cr 4: 4: 4) format, and the terminal 13d is a low quality video (4K60P Y , Cb, Cr 4: 2: 0) format compatible terminal, the EDID setting unit 23 sets the corresponding range of the entire playback device 1 to high quality video (4K60P Y, Cb, Cr 4: 4: 4). . Then, the EDID setting unit 23 sets the disguised EDID indicating compatibility with the high quality video (4K60P Y, Cb, Cr 4: 4: 4) format to all the terminals 13a to 13d. Here, the terminal 13d is originally a terminal corresponding to the low quality video (4K60P Y, Cb, Cr 4: 2: 0) format, but the content indicated by the EDID of the terminal 13d is the high quality video (4K60P Y, Cb, It is disguised as a terminal corresponding to the Cr 4: 4: 4) format. Hereinafter, a process in which the EDID setting unit 23 pretends the EDID of each terminal in advance is referred to as an EDID disguise process.

  In addition, when the connection unit 13 (any one of the terminals 13a to 13d) receives from the data acquisition unit 21 an unrecognizable notification that the video / audio data cannot be recognized, the EDID setting unit 23 sets the EDID of the terminal indicated by the unrecognizable notification. Return to the original EDID. That is, the EDID setting unit 23 changes the disguised EDID to the original EDID and stores the changed original EDID in the storage unit 12. When the EDID change is completed, the EDID setting unit 23 notifies the connection control unit 24 to that effect. Hereinafter, this notification is referred to as an EDID change notification.

  Note that the original EDID of each terminal is stored in the storage unit 12 as default information separately from the EDID 32.

  When the recommendation non-display flag is set, the EDID setting unit 23 executes the above-described EDID disguise process only when the recommendation non-display flag is FALSE.

  In the present embodiment, the EDID 32 is stored in the storage unit 12, but the storage location is not limited to this. For example, the connection unit 13 may include four storage units (memory, register) associated with each of the terminals 13a to 13d, and the EDID of the corresponding terminal may be stored in each storage unit. In this case, the EDID setting unit 23 rewrites the EDID stored in each storage unit.

  In this embodiment, since the playback device 1 and the supply device 2 transmit data according to the HDMI standard, EDID is used. However, the present invention is not limited to this, and the format of video / audio data that can be accepted by each terminal is used. Arbitrary information may be used as long as the format information is compatible format information.

  The connection control unit 24 controls the connection between the connection unit 13 and an external device such as the supply device 2.

  In the present embodiment, the connection control unit 24 first waits for a signal having a predetermined voltage (for example, +5 V) to be transmitted from the supply device 2 via the connection unit 13. And the connection control part 24 will transmit a high level signal to a hot plug detection line, if the signal of a predetermined voltage is received from the supply apparatus 2 via the connection part 13. FIG. Next, the connection control unit 24 waits for an EDID read request from the supply device 2. When receiving the EDID read request from the supply device 2, the connection control unit 24 reads the EDID 32 in the storage unit 12 and transmits the read EDID 32 to the supply device 2.

  When the connection control unit 24 receives the notification of unrecognition from the data acquisition unit 21, the connection control unit 24 transmits a low level signal to the hot plug detection line and temporarily disconnects the connection with the supply device 2. When the connection control unit 24 receives the EDID change notification from the EDID setting unit 23, the connection control unit 24 transmits a high level signal to the hot plug detection line and reconnects to the supply device 2.

  When the connection unit 13 includes a wireless communication unit, the connection control unit 24 connects the wireless communication unit of the supply device and the wireless communication unit of the playback device 1 by wireless communication. For example, the connection unit 13 may establish wifi communication between the playback device 1 and the supply device 2 using the Miracast method. Thereby, the playback device 1 and the supply device 2 can exchange device information (such as the above-mentioned corresponding format information) bidirectionally.

  The recommendation creating unit 25 creates a recommendation indicating that the user is recommended to switch the connection from the terminal connected to the supply device 2 to another terminal. The recommendation creation unit 25 outputs the created recommendation to the playback control unit 22.

  In the recommendation creating unit 25, the format of the video / audio data supplied from the supply device 2 is a format in which a terminal used for connection to the supply device 2 is unacceptable, and there is a terminal that can accept the format. If so, create a recommendation. In other words, the recommendation creating unit 25 is configured so that the supply device 2 that is capable of supplying video / audio data in a format that is acceptable to the playback device 1 as a whole and cannot be accepted by the connected terminal is the terminal. When video and audio data in a format that is connected and can be received by a terminal connected to the supply device 2 is transmitted from the supply device 2, a recommendation is created. Specifically, the recommendation creation unit 25 creates a recommendation when receiving a data acquisition notification from the data acquisition unit 21 for a terminal connected to the supply device 2 after receiving a recognition failure notification.

  In this case, the recommendation creating unit 25 first identifies one or a plurality of difference formats between the format indicated by the disguised EDID and the format indicated by the original EDID at the terminal connected to the supply device 2. Next, the recommendation creation unit 25 identifies a terminal that can accept the format indicated by the disguise EDID for each identified difference format. Then, the recommendation creating unit 25 reads the recommendation information 33 from the storage unit 12 and creates a recommendation that recommends the user to switch the connection to the identified terminal for each identified differential format.

  If the connection unit 13 includes a wireless communication unit, and the wireless communication unit is not compatible with the high quality video format, the recommendation creating unit 25 supports the high quality video format from the currently connected wireless communication unit. Recommendations that recommend switching of connections (switching from wireless communication to wired connection) may be created for the terminals 13a to 13d. When the wireless communication unit supports the high quality video format, the recommendation creating unit 25 switches the connection from the currently connected terminal 13d corresponding to the low quality video format to the wireless communication unit (from wired to wireless communication). Recommendations that recommend switching connections may be created.

  Here, the recommendation information 33 is information including a text template indicating the content of the recommendation and image information to be displayed on the display unit 14 with respect to each format. The recommendation creating unit 25 creates a recommendation by adding the specified terminal to the template.

  In addition, the recommendation creating unit 25 specifies the format of the video / audio data acquired from the supply device 2 by using one of the formats of the video / audio data that can be accepted by the terminal used for connection with the supply device 2 as the specific format. If there is another terminal that is not a format and cannot accept the specific format and can accept the format of the video / audio data acquired from the supply device 2, a recommendation may be created. In addition, the recommendation creation unit 25 does not accept the best format that the format of the video / audio data acquired from the supply device 2 is not the best format that can be accepted by the terminal used for connection with the supply device 2. If there is a terminal that can accept the format of the video / audio data acquired from the supply device 2, a recommendation may be created. Specifically, the recommendation creating unit 25 refers to the data acquisition notification indicating the terminal connected to the supply device 2 and the format of the received video / audio data from the data acquisition unit 21 in the above case. Determine if it applies.

  In this case, the recommendation creation unit 25 first refers to the data acquisition notification acquired from the data acquisition unit 21 and the format of the video / audio data acquired from the supply device 2 is the specific format of the terminal connected to the supply device 2. It is determined whether or not (for example, the best format). If the recommendation creating unit 25 determines that the format is not a specific format, one or a plurality of difference formats between the format of the video / audio data acquired from the supply device 2 and the format acceptable by the terminal connected to the supply device 2 are set. Identify. Next, the recommendation creating unit 25 has another terminal that cannot accept the specific format for each specified difference format and that corresponds to the format of the video / audio data acquired from the supply device 2. It is determined whether or not. When the recommendation creating unit 25 determines that there is another terminal, the recommendation creating unit 25 reads the recommendation information 33 from the storage unit 12 and recommends the user to switch the connection to the other terminal for each specified difference format. Create

  The recommendation creating unit 25 may create a plurality of recommendations when a plurality of difference formats are specified. In this case, the playback control unit 22 may display a plurality of recommendations superimposed on the video.

  Further, the recommendation creating unit 25 corresponds to a plurality of difference formats when a plurality of difference formats are specified, and the specified terminals (or the other terminals described above) overlap in the plurality of difference formats. A plurality of recommendations to be integrated may be created to create one recommendation in which overlapping terminals are added.

  The flag setting unit 26 sets a recommendation non-display flag (recommendation playback information) 31 indicating whether or not the playback device 1 executes the recommendation display process. The flag setting unit 26 stores the set recommendation non-display flag 31 in the storage unit 12. When the recommendation non-display flag 31 is TRUE, the playback device 1 does not execute the recommendation display process. On the other hand, when the recommendation non-display flag 31 is FALSE, the reproducing apparatus 1 executes a recommendation display process.

  In the present embodiment, the flag setting unit 26 sets the recommendation non-display flag 31 to FALSE as a default.

  The flag setting unit 26 sets the recommendation non-display flag 31 to TRUE or FALSE based on a user operation, that is, based on a signal from the operation unit 16.

  Further, the flag setting unit 26 may set the recommendation non-display flag 31 to a default (FALSE in the present embodiment) when the playback device 1 is activated.

  Further, the flag setting unit 26 may set the recommendation non-display flag to a default (FALSE in the present embodiment) when the connection with the supply device 2 is disconnected. For example, when the connection control unit 24 can no longer detect a signal having a predetermined voltage transmitted from the supply device 2, the flag setting unit 26 may set the recommendation non-display flag as a default. Thereby, when different supply apparatuses 2 are connected, a recommendation can be displayed.

  Further, the flag setting unit 26 may set a recommendation non-display flag for each supply device, and store a recommendation non-display flag corresponding to each supply device in the storage unit 12. In this case, the flag setting unit 26 does not set the recommendation non-display flag to the default when the playback device 1 is activated and when the connection with the supply device 2 is disconnected. Thereby, the state which the user set last time can be maintained for every supply apparatus, and a recommendation is not displayed unnecessarily.

  The storage unit 12 stores programs, data, and the like referred to by the control unit 11, and stores the recommendation non-display flag 31, the EDID 32, the recommendation information 33, and the like, for example.

Example 1
Next, Embodiment 1 of the recommendation display process executed by the playback apparatus 1 will be described with reference to FIGS. In this embodiment, it is assumed that video data is supplied from the supply device 2 to the playback device 1. In addition, it is assumed that the supply device 2 can supply high quality video (4K60P Y, Cb, Cr 4: 4: 4).

  First, normal reproduction processing in the reproduction apparatus 1 will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of a connection relationship between the playback device 1 and the supply device 2 and an image displayed on the playback device 1.

  The EDID setting unit 23 disguises the EDID of all the terminals 13a to 13d in advance so as to correspond to the high quality video format. As shown in FIG. 2, the supply device 2 is connected to a terminal 13a which is a terminal corresponding to a high quality video format. When the supply device 2 receives the High level signal in the hot plug detection line, the supply device 2 makes an EDID read request and acquires the EDID of the terminal 13a from the reproduction device 1. This EDID is an EDID disguised by the EDID setting unit 23 so as to correspond to the high quality video format, and is the same as the original EDID of the terminal 13a. The supply device 2 supplies video data of a high quality video format to the playback device 1 based on the acquired EDID. Since the terminal 13a is a terminal corresponding to a high quality video format, the video data supplied from the supply device 2 can be recognized normally. Therefore, the data acquisition unit 21 acquires the video data supplied from the supply device 2 via the terminal 13a, and outputs the acquired video data to the reproduction control unit 22. The reproduction control unit 22 displays the video on the display unit 14 based on the acquired video data.

  Next, a recommendation display process executed by the playback apparatus 1 will be described with reference to FIGS. FIG. 3 is a diagram illustrating an example of a connection relationship between the playback device 1 and the supply device 2 and an image displayed on the playback device 1. FIG. 4 is a flowchart illustrating an example of a recommendation display process executed by the playback device 1.

  As shown in FIG. 4, first, the EDID setting unit 23 disguises EDID using all terminals as high-quality video format compatible terminals. Specifically, the EDID setting unit 23 changes the EDID of the terminal 13d to be compatible with the high quality video (4K60P Y, Cb, Cr 4: 4: 4) format (S1).

  Then, as shown in FIG. 3, the supply device 2 and the terminal 13d are connected by an HDMI cable (S2). When the playback device 1 and the supply device 2 are connected via an HDMI cable, the supply device 2 transmits a signal having a predetermined voltage to the playback device 1. When the connection control unit 24 receives a signal of a predetermined voltage from the supply device 2 via the terminal 13d, the connection control unit 24 transmits a high level signal to the supply device 2 in the hot plug detection line (S3). When the supply device 2 receives the high level signal in the hot plug detection line, the supply device 2 transmits an EDID read request for requesting reading of the EDID of the terminal 13d to the reproduction device 1 (S4). When the connection control unit 24 receives an EDID read request from the supply device 2 via the terminal 13d, the connection control unit 24 reads the EDID 32 of the terminal 13d stored in the storage unit 12, and transmits the read EDID 32 of the terminal 13d to the supply device 2. (S5). Here, since the EDID 32 transmitted by the connection control unit 24 is disguised by the EDID setting unit 23, it is an EDID indicating a high-quality video (4K60P Y, Cb, Cr 4: 4: 4) format.

  When the connection control unit 24 transmits EDID, the data acquisition unit 21 waits for video data to be transmitted from the supply device 2 (S6). The supply device 2 receives the EDID of the terminal 13d, and recognizes that the connected terminal 13d is a high-quality video format compatible terminal based on the received EDID. Then, the supply device 2 transmits the video data of the high quality video format to the playback device 1 based on the received EDID (S7).

  Here, the video data of the high quality video format is transmitted from the supply device 2, but the terminal 13 d is actually a terminal that does not support the high quality video format, and therefore recognizes the video data transmitted from the supply device 2. I can't (NO in S8). Therefore, the data acquisition unit 21 outputs a recognition failure notification indicating that the terminal 13d cannot recognize the video data to the EDID setting unit 23, the connection control unit 24, and the recommendation creation unit 25.

  When the connection control unit 24 receives the recognition failure notification from the data acquisition unit 21, the connection control unit 24 transmits a low level signal to the hot plug detection line via the terminal 13d and temporarily disconnects the connection with the supply device 2 (S9). . When the EDID setting unit 23 receives the recognition failure notification from the data acquisition unit 21, the EDID setting unit 23 changes the EDID of the terminal 13d indicated by the recognition failure notification to the original EDID (low quality video (4K60P Y, Cb, Cr 4: 2: 0) Format) and the EDID 32 of the terminal 13d of the storage unit 12 is updated (S10). Then, the EDID setting unit 23 outputs an EDID change notification to the connection control unit 24.

  On the other hand, since the supply device 2 has received a low level signal in the hot plug detection line, the supply device 2 stops transmitting video data.

  When receiving the EDID change notification from the EDID setting unit 23, the connection control unit 24 waits for a predetermined time, and then receives a signal of a predetermined voltage from the supply device 2 via the terminal 13d. Then, the connection control unit 24 transmits a high level signal to the hot plug detection line (S12).

  When receiving a high level signal in the hot plug detection line, the supply device 2 transmits an EDID read request for requesting reading of the EDID of the terminal 13d to the reproduction device 1 (S13). When the connection control unit 24 receives an EDID read request from the supply device 2 via the terminal 13d, the connection control unit 24 reads the EDID 32 of the terminal 13d stored in the storage unit 12, and transmits the read EDID 32 of the terminal 13d to the supply device 2. (S14). Here, since the EDID transmitted by the connection control unit 24 is returned to the original EDID of the terminal 13d by the EDID setting unit 23, it indicates a low quality video (4K60P Y, Cb, Cr 4: 2: 0) format. EDID.

  The supply device 2 receives the EDID of the terminal 13d, and recognizes that the connected terminal 13d is a low-quality video format compatible terminal based on the received EDID. Then, the supply device 2 transmits the video data of the low quality video format to the playback device 1 based on the received EDID (S15).

  Since the terminal 13d is a terminal corresponding to the low quality video format, the terminal 13d can recognize the video data transmitted from the supply device 2, and the data acquisition unit 21 normally receives the video data of the low quality video from the supply device 2. Is acquired (acquisition step). The data acquisition unit 21 outputs the acquired video data to the reproduction control unit 22 and outputs a data acquisition notification to the recommendation creation unit 25. Then, the reproduction control unit 22 outputs the video data acquired by the data acquisition unit 21 to the display unit 14 and displays a low quality video on the display unit 14 (S16).

  Here, since the recommendation creation unit 25 receives the data acquisition notification from the data acquisition unit 21 after receiving the recognition failure notification for the terminal 13d, the recommendation creation unit 25 identifies the difference format between the disguised EDID of the terminal 13d and the original EDID. To do. In the present embodiment, the recommendation creating unit 25 identifies a high quality video format. Then, the recommendation creating unit 25 identifies a terminal that can accept the high-quality video format indicated by the disguised EDID. In the present embodiment, the recommendation creating unit 25 identifies the terminals 13a to 13c. The recommendation creation unit 25 reads the recommendation information 33 from the storage unit 12 and switches the connection to the specified terminals 13a to 13c, thereby reproducing a high quality video (4K60P Y, Cb, Cr 4: 4: 4). The recommendation which recommends to the user that it can do is created (S17: recommendation creation step). The recommendation creation unit 25 outputs the created recommendation to the playback control unit 22. Then, the reproduction control unit 22 outputs the acquired recommendation to the display unit 14 and causes the display unit 14 to display the recommendation superimposed on the video represented by the video data acquired by the data acquisition unit 21 as shown in FIG. (S18: Reproduction step).

  In S7, when the supply device 2 recognizes that the connected terminal 13d is a high-quality video format compatible terminal, but transmits video data of a low-quality video format to the playback device 1, the supply device 2 Since 13d is a terminal corresponding to the low-quality video format, the video data transmitted from the supply device 2 can be recognized (YES in S8). Therefore, the data acquisition unit 21 normally acquires video data of a low quality video format from the supply device 2 and outputs the acquired video data to the playback control unit 22. Then, the reproduction control unit 22 outputs the video data acquired by the data acquisition unit 21 to the display unit 14 to display a low quality video on the display unit 14 (S19).

  In the present embodiment, in S4, 5 and S13, 14, the supply device 2 acquires the EDID from the playback device 1 after transmitting an EDID read request, but the present invention is not limited to this. For example, the playback device 1 may set the EDID 32 to be accessible (readable) by the supply device 2. In this case, the supply device 2 reads the EDID 32 directly from the reproduction device 1 without transmitting an EDID read request to the reproduction device 1.

(Example 2)
Next, a second embodiment of recommendation display processing executed by the playback apparatus 1 will be described with reference to FIGS. In this embodiment, it is assumed that video data is supplied from the supply device 2 to the playback device 1. In addition, it is assumed that the supply device 2 can supply high quality video (4K60P Y, Cb, Cr 4: 4: 4).

  In the present embodiment, a process in which the playback device 1 sets a recommendation non-display flag based on a user operation will be described. In S17 shown in FIG. 4, when the recommendation as shown in FIG. 5 is displayed, the flag setting unit 26 executes a flag setting process. FIG. 6 is a flowchart illustrating an example of flag setting processing executed by the flag setting unit 26.

  As shown in FIG. 6, in a state where the playback control unit 22 displays the recommendation shown in FIG. 5 on the display unit 14, the flag setting unit 26 waits for the user to operate. If the user selects “YES” (YES in S21), the flag setting unit 26 sets the recommendation non-display flag to TRUE and stores it in the storage unit 12 (S22). On the other hand, when the user selects “NO” (NO in S21), the flag setting unit 26 sets the recommendation non-display flag to FALSE and stores it in the storage unit 12 (S23).

  When the recommendation non-display flag 31 is set in the storage unit 12 and the recommendation non-display flag 31 is FALSE, the reproducing apparatus 1 executes the recommendation display process shown in FIG. On the other hand, when the recommendation non-display flag 31 is TRUE, the playback device 1 performs the playback process illustrated in FIG. 7 without executing the recommendation display process.

  FIG. 7 is a diagram illustrating an example of a reproduction process performed by the reproduction apparatus 1 when the recommendation non-display flag 31 is TRUE. In the example shown in FIG. 7, it is assumed that the supply device 2 is connected to the terminal 13 d and video data is supplied from the supply device 2 to the playback device 1.

  Unlike the recommendation display process illustrated in FIG. 4, as illustrated in FIG. 7, when the recommendation non-display flag 31 stored in the storage unit 12 is TRUE, the EDID setting unit 23 does not execute the EDID impersonation process. Therefore, the EDID 32 of the terminal 13d stored in the storage unit 12 is the original EDID (low quality video (4K60P Y, Cb, Cr 4: 2: 0)).

  First, the supply device 2 and the terminal 13d are connected with an HDMI cable (S31). When the playback device 1 and the supply device 2 are connected via an HDMI cable, the supply device 2 transmits a signal having a predetermined voltage to the playback device 1. When the connection control unit 24 receives a signal of a predetermined voltage from the supply device 2 via the terminal 13d, the connection control unit 24 transmits a high level signal to the supply device 2 in the hot plug detection line (S32). When receiving a high level signal in the hot plug detection line, the supply device 2 transmits an EDID read request for requesting reading of the EDID of the terminal 13d to the reproduction device 1 (S33). When the connection control unit 24 receives an EDID read request from the supply device 2 via the terminal 13d, the connection control unit 24 reads the EDID 32 of the terminal 13d stored in the storage unit 12, and transmits the read EDID 32 of the terminal 13d to the supply device 2. (S34). As described above, since the EDID 32 transmitted by the connection control unit 24 is the original EDID of the terminal 13d, it is an EDID indicating a low quality video format.

  The supply device 2 receives the EDID of the terminal 13d, and recognizes that the connected terminal 13d is a low-quality video format compatible terminal based on the received EDID. Then, the supply device 2 transmits the video data of the low quality video format to the playback device 1 based on the received EDID (S35).

  Since the terminal 13d is a terminal corresponding to the low quality video format, the video data transmitted from the supply device 2 can be recognized, and the data acquisition unit 21 can normally receive the video of the low quality video format from the supply device 2. Get the data. The data acquisition unit 21 outputs the acquired video data to the reproduction control unit 22. Then, the reproduction control unit 22 outputs the video data acquired by the data acquisition unit 21 to the display unit 14 to display a low quality video on the display unit 14 (S36). Here, since the recommendation non-display flag 31 is TRUE, the reproduction control unit 22 does not display the recommendation.

  Note that the flag setting process may be performed at any time such as standby and video or audio reproduction, instead of S17 in FIG.

  Thus, the playback device 1 can prevent unnecessary display of a recommendation by setting display / non-display of the recommendation based on a user operation.

  In the present embodiment, the supply device 2 acquires the EDID from the playback device 1 after transmitting the EDID read request in S33 and S34, but is not limited thereto. For example, the playback device 1 may set the EDID 32 to be accessible (readable) by the supply device 2. In this case, the supply device 2 reads the EDID 32 directly from the reproduction device 1 without transmitting an EDID read request to the reproduction device 1.

(Example 3)
Next, a third embodiment of recommendation display processing executed by the playback apparatus 1 will be described with reference to FIGS. FIG. 8 is a diagram illustrating an example of a connection relationship between the playback device 1 and the supply device 2 and an image displayed on the playback device 1. FIG. 9 is a flowchart illustrating an example of a recommendation display process executed by the playback device 1.

  In this embodiment, when the supply device 2 that cannot supply the video data of the high quality video format is connected to the terminal compatible with the high quality video format, the connection is switched to the terminal that does not support the high quality video format. Here is an example of displaying recommended recommendations.

  In this embodiment, it is assumed that video data is supplied from the supply device 2 to the playback device 1. Further, the supply device 2 cannot supply video data in the high quality video (4K60P Y, Cb, Cr 4: 4: 4) format, and the low quality video (4K60P Y, Cb, Cr 4: 2: 0). ) Assume that only format video data can be supplied. In this embodiment, the supply device 2 is connected to a terminal 13a that is a terminal compatible with a high-quality video format.

  As shown in FIG. 9, first, the EDID setting unit 23 disguises EDID using all terminals as terminals corresponding to a high quality video format (S41). Note that since the terminal 13a is a terminal corresponding to a high quality video format, the EDID is not substantially changed.

  And as shown in FIG. 8, the supply apparatus 2 and the terminal 13a are connected with an HDMI cable (S42). When the playback device 1 and the supply device 2 are connected via an HDMI cable, the supply device 2 transmits a signal having a predetermined voltage to the playback device 1. When the connection control unit 24 receives a signal of a predetermined voltage from the supply device 2 via the terminal 13a, the connection control unit 24 transmits a high level signal to the supply device 2 in the hot plug detection line (S43). When the supply device 2 receives the high level signal in the hot plug detection line, the supply device 2 transmits an EDID read request for requesting reading of the EDID of the terminal 13a to the reproducing device 1 (S44). When the connection control unit 24 receives an EDID read request from the supply device 2 via the terminal 13a, the connection control unit 24 reads the EDID 32 of the terminal 13a stored in the storage unit 12, and transmits the read EDID 32 of the terminal 13a to the supply device 2. (S45). Here, the EDID 32 transmitted by the connection control unit 24 is an EDID indicating a high quality video format.

  When the connection control unit 24 transmits EDID, the data acquisition unit 21 waits for video data to be transmitted from the supply device 2 (S46). The supply device 2 receives the EDID of the terminal 13a, and recognizes that the connected terminal 13a is a high-quality video format compatible terminal based on the received EDID. However, since the supply device 2 cannot supply video data in a high quality video format, it can supply only video data in a low quality video format. Therefore, the supply device 2 transmits video data of a low quality video format to the playback device 1 based on the received EDID (S47).

  Here, since the terminal 13a is a terminal corresponding to the high-quality video format (that is, corresponding to the low-order low-quality video format), the video data transmitted from the supply device 2 can be recognized, and the data acquisition unit 21 acquires the video data of a low quality video format normally from the supply apparatus 2 (acquisition step). The data acquisition unit 21 outputs the acquired video data to the reproduction control unit 22 and outputs a data acquisition notification indicating that video data of a low quality video format has been acquired to the recommendation creation unit 25 via the terminal 13a.

  The recommendation creation unit 25 acquires a data acquisition notification from the data acquisition unit 21 and refers to the acquired data acquisition notification to determine whether the format of the video data received from the supply device 2 is the best format. (S48). In this embodiment, since the video data of the low quality video format is received, the recommendation creating unit 25 determines that the format of the received video data is not the best format of the terminal 13a (NO in S48).

  Next, the recommendation creating unit 25 determines whether there is another terminal that does not support the best format of the terminal 13a and that corresponds to the received video data of the low quality video format. (S49). In this embodiment, since the terminal 13d does not correspond to the best format of the terminal 13a and corresponds to the format of the received data, the recommendation creating unit 25 determines that another terminal exists (YES in S49).

  In this case, the recommendation creating unit 25 reads the recommendation information 33 from the storage unit 12 and switches the connection to the specified other terminal 13d, whereby the terminal 13a can supply video data of a high quality video format. The recommendation which recommends to the user that it can utilize for the connection with the supply apparatus 2 is created (S50: recommendation creation step). The recommendation creation unit 25 outputs the created recommendation to the playback control unit 22.

  And the reproduction | regeneration control part 22 displays a low quality image | video on the display part 14 based on the video data acquired from the data acquisition part 21 (S51). Further, as shown in FIG. 8, the playback control unit 22 causes the display unit 14 to display a recommendation superimposed on the video based on the video data acquired by the data acquisition unit 21 (S52: playback step).

  In S49, if there is no other terminal, the recommendation creating unit 25 does not create a recommendation, and the playback control unit 22 simply creates a low-quality video based on the video data obtained from the data obtaining unit 21. It is displayed on the display unit 14 (S53).

  When the supply device 2 transmits video data of a high quality video format in S47 (when the connected supply device 2 can supply video data of a high quality video format), a recommendation creating unit is executed in S48. 25 determines that the format of the received video data is the best format of the terminal 13a (YES in S48). In this case, the recommendation creating unit 25 does not create a recommendation, and the playback control unit 22 simply displays a high-quality video on the display unit 14 based on the video data acquired from the data acquisition unit 21 (S54).

  In this embodiment, the supply device 2 acquires the EDID from the playback device 1 after transmitting an EDID read request in S44 and 45, but the present invention is not limited to this. For example, the playback device 1 may set the EDID 32 to be accessible (readable) by the supply device 2. In this case, the supply device 2 reads the EDID 32 directly from the reproduction device 1 without transmitting an EDID read request to the reproduction device 1.

(Modification)
In each of the above-described embodiments, the processing of the playback device 1 when the format of video data supplied by the supply device 2 is different from the format acceptable by the terminal (best format) with respect to the sampling frequency has been described. However, the present invention is not limited to this. As described above, even when the quality and type of other video / audio data such as color depth (Deep color), resolution, number of frames, audio quality, MHL, ARC, and the like are different, the playback apparatus 1. Performs the same processing as in the above embodiments.

  An example of a recommendation displayed by the playback apparatus 1 regarding the quality and type of each video / audio data will be described with reference to FIGS. FIG. 10 and FIG. 11 are diagrams showing an example of a recommended text template for each video / audio data quality and type.

  The “type” column shown in FIGS. 10 and 11 indicates the type of quality of video / audio data and the type of video / audio data. In addition, the column “example of target value” illustrated in FIG. 10 is an example of a value indicating the degree of quality of each video / audio data. In addition, the column “example of target value” shown in FIG. 11 shows a numerical example indicating whether it corresponds to MHL or ARC or not, and in the example shown in FIG. 11, the target value “1”. Indicates correspondence, and the target value “0” indicates non-correspondence. The target value is described in, for example, EDID. “Recommendation (1)” shown in FIGS. 10 and 11 indicates a text template used by the recommendation creating unit 25 to create a recommendation in the case of the first embodiment. “Recommendation (2)” shown in FIGS. 10 and 11 indicates a text template used by the recommendation creating unit 25 to create a recommendation in the case of the third embodiment.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIG. 12 and FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  In the first embodiment, the processing of the playback device 1 when the format of data supplied by the supply device 2 and the format acceptable by the terminal are different mainly for video data has been described. However, the present invention is not limited to this, and as described above, the playback apparatus 1 performs the same processing as in the first embodiment even when the audio data format is different.

  In the present embodiment, unlike the first embodiment, it is assumed that the connecting portion 13 includes a terminal 13e and a terminal 13f. In the present embodiment, it is assumed that the terminal 13e is a high resolution format non-compatible terminal, and the terminal 13f is a high resolution format compatible terminal.

  Here, as shown in FIG. 13, when the supply device 2 that is a high-resolution format compatible device is connected to the terminal 13f that is a high-resolution format compatible terminal, as in the example shown in FIG. High-resolution audio data can be normally acquired from the supply device 2 via the terminal 13f. Therefore, in the example illustrated in FIG. 13, the reproduction control unit can output high-resolution audio from the audio output unit 15.

  As shown in FIG. 12, when the supply device 2 that is a high-resolution format compatible device is connected to a terminal 13e that is a non-high-resolution format compatible terminal, as in the first embodiment, the data acquisition unit 21 Audio data of a non-high resolution format (low quality format) is normally acquired from the supply device 2 that is a format compatible device via the terminal 13e that does not support the high resolution format. Therefore, the recommendation creating unit 25 creates a recommendation that it is recommended to switch the connection to the terminal 13f, and the playback control unit 22 outputs the non-high resolution sound from the sound output unit 15 and displays the recommendation on the display unit 14. Let

  When the recommendation non-display flag is set, the playback device 1 according to the present embodiment also performs the same processing as in the second embodiment. When the non-high resolution format compatible device is connected to the terminal 13f that is a high resolution format compatible terminal, the playback device 1 according to the present embodiment performs the same processing as in the third example.

[Example of software implementation]
The control block (particularly the control unit 11) of the playback apparatus 1 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or by software using a CPU (Central Processing Unit). It may be realized.

  In the latter case, the playback apparatus 1 includes a CPU that executes instructions of a program that is software that implements each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) that expands the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
The playback device according to aspect 1 of the present invention includes a plurality of connectors, an acquisition unit that acquires video and audio data supplied from a supply device connected to any of the plurality of connectors, and the acquisition unit acquires And a playback unit that plays back one or both of the video and audio represented by the video / audio data based on the video / audio data, the format of the video / audio data supplied from the supply device is When the first connector used for connection with the supply device has an unacceptable format, the second connector that can accept the format of the video / audio data is used as the connector used for connection with the supply device. It is provided with recommendation creation means for creating a recommendation to switch to a connector, and in the above case, the acquisition means is a video and audio supplied from the supply device The data is switched to video / audio data in a format acceptable by the first connector, and in the above case, the playback means is the video / audio data acquired by the acquisition means, and the first connector Based on the video / audio data in a format that can be accepted, one or both of the video and audio are reproduced, and the recommendation created by the recommendation creating means is reproduced.

  When the format of the video / audio data supplied from the supply device is a format that the first connector cannot accept, and there is a second connector that can accept the format, the connection with the supply device is established. By switching to the second connector, the playback device can acquire and play back the video / audio data in the format. However, when the playback device is connected to the supply device via the first connector, the playback device can only play video and audio data in a format acceptable by the first connector, The audio / video data in a format that cannot be accepted by the first connector and that can be accepted by the second connector cannot be reproduced. That is, in this case, although the audio / video data in a format acceptable by the first connector is reproduced, the function (resource) of the reproducing apparatus is not utilized to the maximum extent. At this time, since one or both of video and audio are being played back, it is difficult for the user to recognize that the function (resource) of the playback device is not utilized to the maximum extent.

  Therefore, as described above, the reproduction is performed by playing a recommendation indicating that the connection is switched from the first connector connected to the supply device to the second connector that can accept the format. The apparatus can prompt the user to switch the connection to the second connector so that the functions of the playback apparatus can be used to the maximum. Therefore, the user can recognize the content of the recommendation, thereby producing the effect that the functions of the playback apparatus can be easily used to the maximum.

  The playback device according to aspect 2 of the present invention is the playback apparatus according to aspect 2, in which the corresponding format information indicating the format of video / audio data acceptable by the first connector is received as video / audio acceptable by the second connector. Disguise means for temporarily changing to disguise format information indicating the format of data may be further provided.

  According to the above configuration, the playback device causes the supply device to supply the video / audio data based on the disguise format information temporarily changed by the disguise means, thereby supplying the video / audio supplied from the supply device. If the format of the data is an unacceptable format for the first connector, it can be seen that the format is acceptable for the second connector. Therefore, the recommendation creating means can easily specify the switching destination connector.

  The playback device according to aspect 3 of the present invention further comprises setting means for setting recommended playback information indicating whether or not the playback means is to play a recommendation in the above-described aspect 1 or 2, wherein the recommended playback information indicates a recommendation. When not indicating that the playback is not performed, the playback unit may not play the recommendation, while when the recommended playback information indicates that the recommendation is played back, the playback unit may play the recommendation.

  According to the above configuration, even when the function of the playback device is not used to the maximum, the playback device does not play the recommendation when the recommended playback information indicates that the recommendation is not played back. Therefore, it is possible to prevent unnecessary recommendations from being reproduced by appropriately setting the recommendation reproduction information.

  In the playback device according to aspect 4 of the present invention, in any one of the above aspects 1 to 3, the first connector and the second connector include sampling frequency, color depth, resolution, number of frames, and audio quality. , MHL (Mobile High-definition Link) and ARC (Audio Return Channel) at least one of the acceptable video and audio data formats may be different.

  According to the above configuration, when the playback device does not use the function of the playback device to the maximum with respect to at least one of sampling frequency, color depth, resolution, number of frames, audio quality, MHL, and ARC. In addition, the recommendation can be reproduced.

  The playback device according to aspect 5 of the present invention includes a plurality of connectors, an acquisition unit that acquires video and audio data supplied from a supply device connected to any of the plurality of connectors, and the acquisition unit acquires And a playback unit that plays back one or both of the video and audio represented by the video / audio data based on the video / audio data, and a third connection used for connection to the supply device A fourth connection in which one of the formats of video and audio data that can be accepted by the child is a specific format, and the format of the video and audio data acquired by the acquisition unit is not the specific format and cannot accept the specific format If there is a fourth connector that can accept the format of the video / audio data acquired by the acquisition means, It is provided with recommendation creating means for creating a recommendation that recommends switching the connector to be used to the fourth connector, and in the above case, the playback means is based on the video and audio data obtained by the obtaining means, One or both of video and audio are reproduced, and the recommendation created by the recommendation creating means is reproduced.

  The format of the video / audio data acquired by the acquisition means is not the specific format and is a fourth connector that cannot accept the specific format, and accepts the format of the video / audio data acquired by the acquisition means If there is a possible fourth connector, the function of the third connector connected to the supply device cannot be used effectively, and the format of the video / audio data supplied by the supply device is accepted. Another possible connector exists. That is, in this case, the function (resource) of the playback device is not utilized to the maximum extent.

  Therefore, as in the configuration described above, by reproducing the recommendation indicating that the connection is switched from the third connector connected to the supply device to the fourth connector, the reproducing device is The user can be prompted to switch the connection to the other connector so that the above function can be used to the maximum. Therefore, the user can recognize the content of the recommendation, thereby producing the effect that the functions of the playback apparatus can be easily used to the maximum.

  A television receiver comprising the playback device according to any one of aspects 1 to 5 of the present invention is also included in the scope of the present invention.

  The playback apparatus control method according to aspect 7 of the present invention includes a plurality of connectors, an acquisition unit that acquires video and audio data supplied from a supply device connected to any of the plurality of connectors, and the acquisition In a control method of a playback device, comprising: playback means for playing back one or both of video and audio represented by the video and audio data based on the video and audio data acquired by the means, the video and audio supplied from the supply device When the format of the data is an unacceptable format for the first connector used for connection with the supply device, the connector used for connection with the supply device is set to the format of the video / audio data. A recommendation creating step for creating a recommendation for switching to an acceptable second connector, and in the above case, a video supplied from the supply device The audio data is switched to video / audio data in a format acceptable by the first connector, and the acquisition step of acquiring the video / audio data from the supply device; in the above case, the video acquired in the acquisition step Reproduction that reproduces one or both of video and audio based on video / audio data in a format acceptable by the first connector, and that reproduces the recommendation created in the recommendation creation step. Steps.

  According to said structure, there exists an effect similar to the reproducing | regenerating apparatus concerning the said aspect 1.

  The playback apparatus control method according to aspect 8 of the present invention includes a plurality of connectors, an acquisition unit that acquires video and audio data supplied from a supply device connected to any of the plurality of connectors, and the acquisition In a control method of a playback device, comprising: a playback device for playing back one or both of video and audio represented by the video and audio data based on the video and audio data acquired by the device; The acquisition step of acquiring the audio / video data via the video signal and the format of the audio / video data acquired in the acquisition step using one of the audio / video data formats acceptable by the third connector as a specific format, A fourth connector that is not in the specific format and cannot accept the specific format, and is acquired in the acquisition step. If there is a fourth connector that can accept the format of the video and audio data, a recommendation creating step for creating a recommendation that recommends switching the connector used for connection with the supply device to the fourth connector; In the above case, the method includes a reproduction step of reproducing one or both of the video and the audio based on the video / audio data acquired in the acquisition step and reproducing the recommendation created in the recommendation creation step.

  According to said structure, there exists an effect similar to the reproducing | regenerating apparatus concerning the said aspect 5.

  The reproduction apparatus according to each aspect of the present invention may be realized by a computer. In this case, the reproduction apparatus is realized by the computer by causing the computer to operate as each unit included in the reproduction apparatus. A control program and a computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be used in a playback apparatus including a plurality of connectors having different corresponding ranges of acceptable video / audio data.

DESCRIPTION OF SYMBOLS 1 Playback apparatus 2 Supply apparatus 13a-f Terminal (connector)
21 Data acquisition unit (acquisition means)
22 Reproduction control unit (reproduction means)
23 EDID setting part (impersonation means)
24 connection control unit 25 recommendation creation unit (recommendation creation means)
26 Flag setting section (setting means)

Claims (10)

A plurality of connectors; acquisition means for acquiring video / audio data supplied from a supply device connected to any of the plurality of connectors; and the video / audio based on the video / audio data acquired by the acquisition means In a playback device comprising: playback means for playing back one or both of video and audio represented by data;
When the format of the video / audio data supplied from the supply device is not acceptable by the first connector used for connection with the supply device, the connector used for connection with the supply device A recommendation creating means for creating a recommendation that recommends switching to a second connector that can accept the format of the video and audio data,
In the above case, the acquisition means switches the video / audio data supplied from the supply device to video / audio data in a format acceptable by the first connector,
In the above case, the reproduction means reproduces one or both of video and audio based on the video and audio data acquired by the acquisition means and in a format acceptable by the first connector. And playing the recommendation created by the recommendation creating means,
A reproducing apparatus characterized by that.   Impersonation means for temporarily changing corresponding format information indicating a format of video / audio data acceptable by the first connector to impersonation format information indicating a format of video / audio data acceptable by the second connector The playback apparatus according to claim 1, further comprising: Setting means for setting recommended reproduction information indicating whether or not the reproduction means reproduces the recommendation;
When the recommended playback information indicates that the recommendation is not played back, the playback means does not play the recommendation, while when the recommended playback information indicates that the recommendation is played back, the playback means indicates that the recommendation is played back. The reproducing apparatus according to claim 1 or 2, characterized in that:   The first connector and the second connector are at least one of sampling frequency, color depth, resolution, number of frames, audio quality, MHL (Mobile High-definition Link), and ARC (Audio Return Channel). 4. The playback apparatus according to claim 1, wherein an acceptable format of the video / audio data is different. A plurality of connectors; acquisition means for acquiring video / audio data supplied from a supply device connected to any of the plurality of connectors; and the video / audio based on the video / audio data acquired by the acquisition means In a playback device comprising: playback means for playing back one or both of video and audio represented by data;
One of the formats of video / audio data that can be accepted by the third connector used for connection with the supply device is set as a specific format, and the format of the video / audio data acquired by the acquisition unit is the specific format. If there is no fourth connector that cannot accept the specific format and can accept the format of the video / audio data acquired by the acquisition means, the connection to the supply device A recommendation creating means for creating a recommendation that recommends switching the connector used in step 4 to the fourth connector;
In the above case, the reproducing means reproduces one or both of video and audio based on the video / audio data obtained by the obtaining means, and reproduces the recommendation created by the recommendation creating means,
A reproducing apparatus characterized by that.   A television receiver comprising the playback device according to claim 1. A plurality of connectors; acquisition means for acquiring video / audio data supplied from a supply device connected to any of the plurality of connectors; and the video / audio based on the video / audio data acquired by the acquisition means In a control method of a playback device comprising: playback means for playing back one or both of video and audio represented by data;
When the format of the video / audio data supplied from the supply device is not acceptable by the first connector used for connection with the supply device, the connector used for connection with the supply device A recommendation creating step for creating a recommendation that recommends switching to a second connector that can accept the format of the video and audio data;
In the above case, the acquisition step of switching the video / audio data supplied from the supply device to the video / audio data in a format acceptable by the first connector, and acquiring the video / audio data from the supply device;
In the above case, the video and audio data acquired in the acquisition step, and one or both of the video and audio are reproduced based on the video and audio data in a format acceptable by the first connector, and And a playback step for playing back the recommendation created in the recommendation creation step. A plurality of connectors; acquisition means for acquiring video / audio data supplied from a supply device connected to any of the plurality of connectors; and the video / audio based on the video / audio data acquired by the acquisition means In a control method of a playback device comprising: playback means for playing back one or both of video and audio represented by data;
An acquisition step of acquiring video and audio data from the supply device via a third connector;
One of the formats of the video / audio data that can be accepted by the third connector is set as a specific format, and the format of the video / audio data acquired in the acquisition step is not the specific format and accepts the specific format. In the case where there is a fourth connector that cannot accept the format of the video / audio data acquired in the acquisition step, the connector used for connection with the supply device is A recommendation creation step for creating a recommendation to switch to a connector of 4;
In the above case, the method includes a reproduction step of reproducing one or both of video and audio based on the video / audio data acquired in the acquisition step and reproducing the recommendation created in the recommendation creation step. A control method for a playback apparatus.   A control program for causing a computer to function as the playback apparatus according to claim 1, wherein the control program causes the computer to function as each of the means.   A computer-readable recording medium on which the control program according to claim 9 is recorded.

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