KR20100050373A - Video apparatus and method for controlling video apparatus - Google Patents

Abstract

PURPOSE: An imaging device and an image device control method applying the same for confirming a supporting function are provided to transmit image apparatus function information. CONSTITUTION: An interface is connected to an external device. A controller(270) transmits imaging device information and imaging device function information of the imaging device through the interface to the external device. The controller receives the external device information and external device function information of the external device. The imaging device function information comprises the information about whether the imaging device supports the specific application.

Description

Video apparatus and method for controlling video apparatus applied thereto {Video apparatus and method for controlling video apparatus}

The present invention relates to a video device and a method for controlling a video device applied thereto, and more particularly, to a video device for controlling a function using an A / V interface capable of bidirectional communication and a video device control method applied thereto.

As the technology related to the video device is developed, the functions of the TV and the AV devices connected to the TV are diversified. In particular, TVs are diversified and larger in size, and may support different image quality modes depending on whether the content is a movie or a broadcast program.

As such, as the functions of the TV are diversified and the performance of the AV devices connected to the TV is improved, the user can watch a higher quality and higher quality image using the TV. In addition, users can use a home theater system that can make them feel as if they are watching a movie at home.

However, as the functions of TVs and AV devices connected to TVs are diversified, it is difficult for a user to know what functions each device supports. In addition, it is difficult for the user to know which function can provide the best picture quality between the TV and the AV device.

The user wants to watch a better image quality. Accordingly, a search for a method for automatically setting the function of the TV and the external AV device is requested.

The present invention has been made to solve the above problems, an object of the present invention is to receive external device information and external device function information from an external device through an interface, and the video device information and video device function information of the video device The present invention provides a video device for transmitting an external device and a video device control method applied thereto.

In addition, another object of the present invention is to transmit the video device information and video device function information of the video device to the external device through the video signal channel of the interface, and the external device information and external device function information of the external device data of the interface The present invention provides a video device received from an external device through a channel and a video device control method applied thereto.

According to an embodiment of the present invention, an image device connected to an external device includes: an interface connected to the external device; And a controller configured to transmit the video device information and the video device function information of the video device to the external device through the interface, and receive the external device information and the external device function information of the external device from the external device. And the video device function information includes information on whether the video device supports a specific function, and the external device function information includes information on whether the external device supports the specific function. If the external device supports a specific function in the received external device function information and the video device also supports the specific function, the controller executes the specific function.

The specific function may include a function related to an image quality mode of an image.

In addition, the specific function may be performed such that the video device receives data from which the image quality mode of the image is not adjusted from the external device and adjusts the image quality mode of the image device.

The image quality mode may be a mode for adjusting at least one of resolution, sharpness, brightness, noise reduction, hue, and saturation.

The interface may be an interface of HDMI (High Definition Multimedia Interface) standard.

The external device information may be received in a format of a Source Product Description (SPD) InfoFrame, and the external device function information may be received in at least one data byte included in the SPD InfoFrame. .

The controller may be further configured to transmit the video device information to the external device in an EDID (Enhanced Display Identification Data) format, and to record the video device function information in at least one byte included in the EDID. You can also send.

On the other hand, according to the present embodiment, a control method of a video device connected to an external device through an interface, the method comprising: transmitting the video device information and video device function information of the video device to the external device; Receiving external device information and external device function information of the external device from the external device; And when the external device supports a specific function in the received external device function information and the video device also supports the specific function, executing the specific function. The information includes information on whether the video device supports the specific function, and the external device function information includes information on whether the external device supports the specific function.

The specific function may include a function related to an image quality mode of an image.

In the executing of the specific function, the image device may receive data whose image quality mode is not adjusted from the external device, and execute the function of adjusting the image quality mode of the image device.

The image quality mode may be a mode for adjusting at least one of resolution, sharpness, brightness, noise reduction, hue, and saturation.

The receiving step may include receiving the external device information and the external device function information through a video signal channel of the interface, and the transmitting step may include the video device information and the video through a data channel of the interface. The device function information may be transmitted to the external device.

The interface may be an interface of HDMI (High Definition Multimedia Interface) standard.

The video signal channel may be a transition minimized differential signaling (TMDS) signal channel of the HDMI interface, and the data channel may be a DDC (Display Data Channel) of the HDMI interface.

On the other hand, according to an embodiment of the present invention, the external device connected to the video device, the interface connected to the video device; And a controller for transmitting the external device information and the external device function information of the external device to the video device through the interface and receiving the video device information and the video device function information of the video device from the video device. The external device function information includes information on whether the external device supports a specific function, and the video device function information includes information on whether the video device supports the specific function. If the video device supports a specific function in the received video device function information and the external device also supports the specific function, the controller executes the specific function.

The specific function may include a function related to an image quality mode of an image.

The specific function may be a function of transmitting, by the external device, data to which the image quality mode of the image is not adjusted to the image device so that the image device adjusts the image quality mode.

The image quality mode may be a mode for adjusting at least one of resolution, sharpness, brightness, noise reduction, hue, and saturation.

On the other hand, according to an embodiment of the present invention, a method of controlling an external device connected to an image device through an interface may include transmitting external device information and external device function information of the external device to the video device; Receiving video device information and video device function information of the video device from the video device; And when the video device supports a specific function in the received video device function information and the external device also supports the specific function, executing the specific function. The information includes information on whether the external device supports the specific function, and the video device function information includes information on whether the video device supports the specific function.

In addition, the specific function may include a function related to an image quality mode of the image.

In the executing of the specific function, the external device may execute a function of transmitting data to which the image quality mode of the image is not adjusted, to the image apparatus so that the image apparatus adjusts the image quality mode.

The image quality mode may be a mode for adjusting at least one of resolution, sharpness, brightness, noise reduction, hue, and saturation.

As described above, according to various embodiments of the present disclosure, an image device for receiving external device information and external device function information from an external device through an interface, and transmitting image device information and image device function information of the video device to the external device. And it is possible to provide a method for controlling the video device applied to this, the video device can check the functions that the external device supports.

In particular, since the video device determines whether the external device supports a specific function or not to perform a specific function, the video device can perform an optimal image quality mode function for the external device.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a diagram illustrating an imaging system according to an exemplary embodiment of the present invention. As illustrated in FIG. 1, the video system is constructed such that the TV 200 and the BD (Bluelay Disc) player 300 are connected through an interface capable of bidirectional communication.

Here, the interface connecting the TV 200 and the BD player 300 may be an interface of the HDMI (High Definition Multimedia Interface) standard. This is because HDMI includes a channel capable of bidirectional communication. However, the interface may be applied to any other A / V interface capable of bidirectional communication.

The BD player 300 reads out the video and audio signals recorded in the BD and transmits the same to the TV 200. The device providing the video and audio signals is called a source device in the HDMI standard.

In addition, the BD player 300 transmits its own device information (eg, manufacturer name, model name, etc.) and function information (eg, whether or not a specific image quality mode function is supported) to the TV 200 through an image receiving channel. Send periodically. This is to inform the TV 200 about the BD player 300 and information on whether the BD player 300 supports a specific function.

The specific function may include at least one of a function related to an image quality mode or a function related to an image source type. Examples of functions related to the image quality mode may include an aspect ratio control, a brightness control, and a scaling function. In addition, examples of functions related to the image source may include functions such as a movie mode, a news mode, and a drama mode.

The TV 200 receives a video signal and an audio signal from the BD player 300 and displays it on the screen. As such, a device that functions to receive a video signal and an audio signal and display the same on a screen is called a sink device in the HDMI standard.

In addition, the TV 200 periodically transmits its device information (eg, manufacturer name, model name, etc.) and function information (eg, whether or not a specific image quality mode function is supported) to the BD player 300 through a data channel. Send by This is to inform the BD player 300 about the information about itself and information about a specific function to the BD player 300.

As such, the TV 200 and the BD player 300 may transmit and receive their own device information and function information, respectively, and may determine whether the TV 200 and the BD player 300 support functions that can optimize image quality. In particular, the TV 200 and the BD player 300 may determine whether to support a specific function based on the received function information of the counterpart device, respectively, to execute an optimal function for both devices.

Hereinafter, the structure of the TV 200 will be described in detail with reference to FIG. 2. As shown in FIG. 2, the TV 200 includes a broadcast receiver 210, an A / V processor 220, an audio output 230, a display 240, a storage 250, and an HDMI interface receiver. 260, a controller 270, and a remote controller receiver 280.

The broadcast receiving unit 210 receives and demodulates a broadcast by wire or wireless from a broadcasting station or a satellite.

The A / V processing unit 220 performs signal processing such as video decoding, video scaling, and audio decoding on the video signal and the audio signal input from the broadcast receiving unit 210 and the control unit 270. The A / V processing unit 220 outputs an image signal to the display unit 240 and outputs an audio signal to the audio output unit 230.

The voice output unit 230 outputs the voice output from the A / V processing unit 220 through the speaker.

The display unit 240 displays an image output from the A / V processing unit 220. In particular, the display 240 displays a boot image on the screen while the TV 100 is booting.

The storage unit 250 stores the recorded image. The storage unit 250 may be implemented as a hard disk, a nonvolatile memory, a flash memory, or the like.

The HDMI interface receiving terminal 260 receives a video signal and an audio signal from a BD player 300 connected with an HDMI cable. The configuration of the HDMI interface receiving terminal 260 will be described in detail later with reference to FIG. 5.

The remote control receiver 280 receives a user's manipulation from the remote controller 290 and transmits the user's manipulation to the controller 270.

The controller 270 grasps a user command based on the user's manipulations transmitted from the remote controller 290, and controls the overall operation of the TV 100 according to the grasped user command.

The controller 270 receives the device information of the BD player 300 and the function information of the BD player 300 from the BD player 300 through the HDMI interface receiving terminal 260. In addition, the controller 270 transmits the device information of the TV 200 and the function information of the TV 200 to the BD player 300 through the HDMI interface receiving terminal 260.

In this case, since the data channel of the HDMI interface is bidirectional communication, the controller 260 transmits the device information of the TV 200 and the function information of the TV 200 through the data channel of the HDMI interface receiving terminal 260. . In detail, the controller 260 transmits device information of the TV 200 and function information of the TV 200 through the DDC (Display Data Channel) of the HDMI interface of the HDMI interface receiving terminal 260.

The controller 270 transmits the device information of the TV 200 to the BD player 300 in the format of Enhanced Display Identification Data (EDID). The controller 270 stores the function information of the TV 200 in at least one byte included in the EDID. Accordingly, the controller 270 transmits the device information and the function information of the TV 200 together in the EDID format to the BD player 300.

Here, the device information of the TV 200 means system information or specification information of the TV 200 itself, and includes information including a manufacturer name and a model name of the TV 200. For example, the device information of the TV 200 may include "SAMSUNG" as a manufacturer name and "L3" as a model name.

The function information of the TV 200 means information indicating whether the TV 200 supports a specific function. Here, the specific function indicates a function related to an image quality mode of the TV 200 or a function related to an image source type. Examples of functions related to the image quality mode may include an aspect ratio control, a brightness control, and a scaling function. In addition, examples of functions related to the image source may include functions such as a movie mode, a news mode, and a drama mode.

In detail, the function information of the TV 200 may be stored in a byte whose address is 0Bh in the EDID. If the byte having the address 0Bh is 1, it may indicate that the TV 200 supports a specific function, and if it is 0, it may indicate that the TV 200 does not support a specific function.

The EDID format including the function information will be described in detail later with reference to FIGS. 8 and 9.

The controller 270 receives device information of the BD player 300 and function information of the BD player 300 from the BD player 300 through the video signal channel of the HDMI interface receiving terminal 260. Here, the video signal channel may be a transition minimized differential signaling (TMDS) signal channel of the HDMI interface.

The controller 270 receives the device information of the BD player 300 in the format of a Source Product Description (SPD) InfoFrame. In addition, at least one data byte included in the SPD Infoframe includes the function information of the BD player 300. In this way, the controller 270 may determine whether the BD player 300 supports a specific function.

Here, the device information of the BD player 300 means system information or specification information of the BD player 300 itself, and includes information including a manufacturer name and a model name of the BD player 300. For example, the device information of the BD player may include "SAMSUNG" as a manufacturer name and "BD-1600" as a model name.

The function information of the BD player 300 means information indicating whether the BD player 300 supports a specific function. Here, the specific function indicates a function related to the video quality mode of the BD player 300 or a function related to the video source type. Examples of functions related to the image quality mode may include an aspect ratio control, a brightness control, and a scaling function. In addition, examples of functions related to the image source may include functions such as a movie mode, a news mode, and a drama mode.

In more detail, the function information of the BD player 300 may be stored in the 24 th byte of the SPD Infoframe. If the 24 th byte is 1, the BD player 300 may support a specific function. If the 24 th byte is 0, the BD player 300 may not support a specific function.

The format of the SPD Infoframe including the function information will be described in detail later with reference to FIGS. 6 and 7.

On the other hand, the controller 270 is recorded in the function information of the received BD player 300 as the BD player 300 supports a specific function, and when the TV 200 also supports a specific function, the specific function is executed. Done. For example, if a particular function is a wide mode function and both the TV 200 and the BD player 300 support the wide mode function, the TV 200 receives the BD player 300 received when the BD player 300 is connected. Check the function information of and execute wide mode.

In this way, the TV 200 receives the function information from the BD player 300, thereby enabling the TV 200 to execute the optimal function with the BD player 300. In addition, since the TV 200 receives the function information together with the device information of the BD player 300, the TV 200 may execute a function corresponding to the device of the BD player 300. In addition, since the TV 200 transmits its own device information and function information to the BD player 300, the BD player 300 may also perform a specific function suitable for the TV 200.

Hereinafter, the structure of the BD player 300 will be described in detail with reference to FIG. 3. 3 is a block diagram showing the structure of a BD player 300 according to an embodiment of the present invention. As shown in FIG. 3, the BD player 300 includes an HDMI interface transmitting terminal 310, a controller 320, and a BD player function unit 330.

The BD player function unit 330 performs an original function of the BD player. For example, the BD player function unit 330 reads out a video signal and an audio signal from the inserted BD and transmits the same to the connected TV 200.

The HDMI interface transmitting terminal 310 is connected to the TV 200 with an HDMI cable. The HDMI interface transmitting terminal 310 transmits the video signal and the audio signal read from the BD to the TV 200. The HDMI interface transmission terminal 310 will be described in detail later with reference to FIG. 5.

The controller 320 transmits the device information and the function information of the BD player 300 to the TV 200 through the video signal channel of the HDMI interface transmitting terminal 310. The controller 320 receives the device information and the function information of the TV 200 from the TV 200 through the data channel of the HDMI interface transmitting terminal 310.

Here, the video signal channel may be a TMDS signal channel of the HDMI interface, and the data channel may be a DDC of the HDMI interface. In addition, the function information of the BD player 300 includes information on whether the BD player 300 supports a specific function. The function information of the TV 200 includes information on whether the TV 200 supports a specific function.

The controller 320 transmits the device information of the TV 200 from the TV 200 in the format of Enhanced Display Identification Data (EDID). Here, the function information of the TV 200 is stored in at least one byte included in the EDID. Accordingly, the controller 270 receives the device information and the function information of the TV 200 from the TV 200 together in the EDID format.

Here, the device information of the TV 200 means system information or specification information of the TV 200 itself, and includes information including a manufacturer name and a model name of the TV 200. For example, the device information of the TV 200 may include "SAMSUNG" as a manufacturer name and "BD-1600" as a model name.

The function information of the TV 200 means information indicating whether the TV 200 supports a specific function. Here, the specific function indicates a function related to an image quality mode of the TV 200 or a function related to an image source type. Examples of functions related to the image quality mode may include an aspect ratio control, a brightness control, and a scaling function. In addition, examples of functions related to the image source may include functions such as a movie mode, a news mode, and a drama mode.

In detail, the function information of the TV 200 may be stored in a byte whose address is 0Bh in the EDID. If the byte having the address 0Bh is 1, it may indicate that the TV 200 supports a specific function, and if it is 0, it may indicate that the TV 200 does not support a specific function.

The EDID format including the function information will be described in detail later with reference to FIGS. 8 and 9.

Meanwhile, the controller 320 transmits device information of the BD player 300 and function information of the BD player 300 to the TV 200 through the video signal channel of the HDMI interface transmitting terminal 310. Here, the video signal channel may be a transition minimized differential signaling (TMDS) signal channel of the HDMI interface.

The controller 320 transmits the device information of the BD player 300 in the format of a Source Product Description (SPD) InfoFrame. In addition, the controller 320 records the function information of the BD player 300 in at least one data byte included in the SPD Infoframe. Therefore, the controller 320 may transmit the function information to the TV 200 together with the device information of the BD player 300.

Here, the device information of the BD player 300 means system information or specification information of the BD player 300 itself, and includes information including a manufacturer name and a model name of the BD player 300. For example, the device information of the BD player may include "SAMSUNG" as a manufacturer name and "L3" as a model name.

The function information of the BD player 300 means information indicating whether the BD player 300 supports a specific function. Here, the specific function indicates a function related to the video quality mode of the BD player 300 or a function related to the video source type. Examples of functions related to the image quality mode may include an aspect ratio control, a brightness control, and a scaling function. In addition, examples of functions related to the image source may include functions such as a movie mode, a news mode, and a drama mode.

In more detail, the function information of the BD player 300 may be stored in the 24 th byte of the SPD Infoframe. If the 24 th byte is 1, the BD player 300 may support a specific function. If the 24 th byte is 0, the BD player 300 may not support the specific function.

The format of the SPD Infoframe including the function information will be described in detail later with reference to FIGS. 6 and 7.

On the other hand, the control unit 320 is recorded in the function information of the TV 200 as the TV 200 supports a specific function, and if the BD player 300 also supports a specific function, to execute a specific function do. For example, if a particular function is a wide mode function and both the TV 200 and the BD player 300 support the wide mode function, the BD player 300 may be connected to the TV 200. Check the function information to execute wide mode.

In this way, the BD player 300 can execute the optimal function with the TV 200 by receiving the function information from the TV 200. Also, since the BD player 300 receives the function information together with the device information of the TV 200, the BD player 300 may execute a function corresponding to the device type of the TV 200. In addition, since the BD player 300 transmits its own device information and function information to the TV 200, the TV 200 may also perform a specific function that is suitable for the BD player 300.

Hereinafter, a control method of the TV 200 and the BD player 300 connected to each other through the HDMI interface will be described with reference to FIG. 4. 4 is a flowchart provided to explain a method for controlling a video device according to an embodiment of the present invention.

In FIG. 4, the left side shows a flowchart of the operation of the TV 200, and the right side shows a flowchart of the operation of the BD player 300.

First, the operation of the TV 200 will be described first. The TV 200 receives device information and function information of the BD player 300 through the video signal channel of the HDMI interface from the BD player 300 (S420). Here, the video signal channel is a TMDS signal channel of the HDMI standard, and device information and function information of the BD player 300 are received in the format of the SPD InfoFrame.

Thereafter, the TV 200 transmits device information and function information of the TV 200 to the BD player 300 through the data channel of the HDMI interface (S430). Here, the data channel is a DDC of the HDMI standard, and the device information and the function information of the TV 200 are transmitted in the EDID format.

Next, the TV 200 determines whether to support a specific function (S450). If the TV 200 supports a specific function (S450-Y), the TV 200 reads a specific byte corresponding to the function information of the BD player 300 from the received SPD InfoFrame (S453). If the BD player 300 includes the BD player 300 as supporting the specific function (S456-Y), the TV 200 performs the specific function (S459).

The operation of the BD player 300 will be described below. First, the BD player 300 transmits device information and function information of the BD player 300 to the TV 200 through the video signal channel of the HDMI interface (S410). Here, the video signal channel is a TMDS signal channel of the HDMI standard, and device information and function information of the BD player 300 are transmitted in the format of the SPD InfoFrame.

The BD player 300 receives device information and function information of the TV 200 from the TV 200 through a data channel of the HDMI interface (S440). Here, the data channel is a DDC of the HDMI standard, and device information and function information of the TV 200 are received in an EDID format.

Next, the BD player 300 determines whether to support a specific function (S460). If the BD player 300 supports a specific function (S460-Y), the BD player 300 reads a specific byte corresponding to the function information of the TV 200 from the received EDID (S463). In addition, if the TV 200 includes the TV 200 supporting a specific function in the function information of the TV 200 (S466-Y), the BD player 300 performs a specific function (S469).

Through this process, since the TV 200 and the BD player 300 can confirm whether or not they support a specific function that matches each other, the TV 200 and the BD player 300 can achieve an optimal effect. Function together.

Hereinafter, a channel of the HDMI interface will be described with reference to FIG. 5. 5 is a diagram illustrating in detail channels of an HDMI interface according to an embodiment of the present invention.

The HDMI interface transmitting terminal 310 and the HDMI interface receiving terminal 260 are connected to each other through an HDMI cable to communicate. As shown in FIG. 5, the HDMI interface includes a TMDS signal channel, a DDC, a Consumer Electronics Control (CEC) channel, a Hot Plug Detect (HPD) channel, and a power channel.

The Transition Minimized Differential Signaling (TMDS) signal channel transmits a video signal, an audio signal, and an InfoFrame from the HDMI interface transmitting terminal 310 to the HDMI interface receiving terminal 260. The InfoFrame includes device information and function information of a device (ie, BD player 300) including the HDMI interface transmitting terminal 310.

The Display Data Channel (DDC) is a channel through which data related to encryption and Enhanced Display Identification Data (EDID) are transmitted.

The CEC channel is a channel through which control signals for controlling connected devices are transmitted. The HPD channel corresponds to a channel that detects a hot plug. The power channel corresponds to a channel to which power is supplied. Among the channels of HDMI, the TMDS signal channel is a one-way communication channel, and the DDC, CEC, and HPD channels correspond to bidirectional communication channels.

As such, among the channels of the HDMI interface, the device information and the function information of the BD player 300 are transmitted to the TV 200 using the TMDS signal channel, and the device information and the function information of the TV 200 using the DDC. Is transmitted to the BD player 300.

Hereinafter, with reference to FIGS. 6 and 7, the location of the byte in which the standard and function information of the SPD InfoFrame is recorded will be described. 6 is a table showing information corresponding to data bytes of an SPD InfoFrame in detail according to an embodiment of the present invention.

As shown in FIG. 6, the SPD InfoFrame is composed of a total of 25 bytes, and the vendor name, model name, and product family can be confirmed. In addition, it can be seen that the 24 th data byte contains the function information.

FIG. 7 is a diagram illustrating an example of an SPD InfoFrame including functional information of a BD player according to an embodiment of the present invention.

As shown in FIG. 7, the SPD InfoFrame includes "SAMSUNG" as a manufacturer name (ie, a vendor name) and "BD-P1600" as a model name. In addition, since the product family is "0Ah", referring to the table of FIG. 6, it can be seen that "Blu-Ray Disc (BD)". In addition, it can be seen that the 24 th byte 700 indicates the function information. The 24 th byte 700 may be 0 or 1, 0 indicates no support for a specific function, and 1 indicates support for a specific function.

However, in addition to using 0 and 1, other values may be used to indicate whether a particular function is supported. In addition, of course, any one of the values corresponding to various functions may be stored in the byte indicating the function information in addition to the specific function support. In addition, of course, the function information may be stored in a byte other than the 24 th byte 700.

In this way, the device information and the function information of the BD player 300 can be recorded using the SPD InfoFrame.

Hereinafter, the position of the byte in which the standard and function information of the EDID is recorded will be described with reference to FIGS. 8 and 9. 8 is a table showing in detail information corresponding to bytes of an EDID according to an embodiment of the present invention.

As shown in FIG. 8, it can be seen that the EDID contains a manufacturer name in two bytes of an address 08h and a model name in two bytes of an address 0Ah. In other words, the address of the byte containing the model name is 0Ah and 0Bh. Here, the function information of the TV 200 may be stored in a byte having an address of 0Bh. This will be described with reference to FIG. 9.

9 is a diagram illustrating an example of an EDID in which TV function information is recorded according to an embodiment of the present invention.

As shown in FIG. 9, it can be seen that the model name "L3" is contained in the data byte A (that is, address 0Ah) of the ID Product Code indicating the model name. Then, it can be confirmed that 0 or 1 is recorded as the function information of the TV 200 in the data byte B 900 (that is, the address 0Bh). Here, when the data byte B 900 is 0, it indicates that the TV 200 does not support a specific function, and when it is 1, it indicates that the TV 200 supports a specific function.

However, in addition to using 0 and 1, other values may be used to indicate whether a particular function is supported. In addition, of course, any one of the values corresponding to various functions may be stored in the byte indicating the function information in addition to the specific function support. In addition, of course, the function information may be stored in a byte other than the data byte B 900.

In this way, the device information and the function information of the TV 200 can be recorded using the EDID.

Hereinafter, an example of a specific function supported by the TV 200 and the BD player 300 will be described. The TV 200 and the BD player 300 may support a function called BD Wise image quality mode as a specific function. Here, the BD Wise image quality mode refers to a mode in which the BD player 300 transmits original image data to the TV 200 as it is and the TV 200 performs image processing on the image quality of the received image.

Therefore, when the BD player 300 is set to the BD Wise image quality mode, the BD player 300 displays the image data of which the image quality mode of the image is not adjusted so that the image quality mode of the image is adjusted on the TV 200. Will be sent to. In addition, when the TV 200 is set to the BD Wise image quality mode, the TV 200 receives data from the BD player 300 whose data quality mode is not adjusted and allows the TV 200 to adjust the image quality mode. do. Here, adjusting the image quality mode means an image processing process. For example, the image quality mode adjustment includes processing of image deinterlacing, upscaling, back light adjustment, contrast, hue, saturation, noise reducction, cadence detection, white balance, resolution, and brightness.

The video processing apparatus mounted on the BD player 300 may have lower performance than the A / V processing unit 220 of the TV 200. In such a case, when the BD player 300 and the TV 200 execute the BD wise image quality function, the A / V processing unit 220 of the TV 200 having high performance processes the image data, so that the user can You can watch images of good quality.

The TV 200 and the BD player 300 may determine whether the BD wise image quality mode functions with each other through the above-described process of FIG. 4. In addition, when both the TV 200 and the BD player 300 support the BD wise image quality mode, the TV 200 and the BD player 300 execute the BD wise image quality mode. Through this, the TV 200 and the BD player 300 automatically provide better image quality.

Also, even if the TV 200 and the BD player 300 support the BD wise image quality mode, whether the TV 200 and the BD player 300 execute the BD wise image quality mode depends on whether the function is ON or OFF. You can also decide.

This will be described with reference to FIG. 10. 10 is a table showing whether the BD wise image quality mode is executed according to whether the BD wise image quality mode of the TV 200 and the BD player 300 is on or off according to an embodiment of the present invention.

As shown in FIG. 10, when the BD wise image quality mode of the BD player 300 is ON, both the BD player 300 and the TV 200 execute the BD wise image quality mode. On the other hand, when the BD wise image quality mode of the BD player 300 is OFF, the BD player 300 does not execute the BD wise image quality mode and the TV 200 displays the BD only when the BD wise image quality mode is ON. wise image quality mode is executed.

As such, the TV 200 and the BD player 300 may execute the BD wise image quality mode in various ways, and thus, the user may watch the image processed at the optimum image quality. In addition, since the TV 200 and the BD player 300 automatically check whether each other supports the BD wise image quality mode, the TV 200 and the BD player 300 may play the BD wise without a user's separate operation. The image quality mode can be properly executed.

In the present embodiment, the video device is described as a TV 200, but any video device corresponding to the receiving end of the HDMI interface can be applied. For example, it can be applied to monitors and laptops as well. The video device information indicates device information of a corresponding video device. And the video device function information means the function information of the corresponding video device.

In addition, in the present embodiment, it has been described that the external device connected to the video device is the BD player 300, but other AV devices may be connected. For example, a device connected to a video device may be connected to a set top box, a DVD player, a video player, etc. in addition to the BD player 300. The external device information indicates device information of a device connected to the video device. The external device function information means function information of a device connected to the video device.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a diagram illustrating an imaging system according to an embodiment of the present invention;

2 is a block diagram showing a detailed structure of a TV according to an embodiment of the present invention;

3 is a block diagram showing the structure of a BD player according to an embodiment of the present invention;

4 is a flowchart provided to explain a method for controlling a video device according to an embodiment of the present invention;

5 illustrates in detail channels of an HDMI interface, according to an embodiment of the present invention;

6 is a table showing in detail information corresponding to data bytes of an SPD InfoFrame according to an embodiment of the present invention;

7 is a diagram illustrating an example of an SPD InfoFrame containing functional information of a BD player according to one embodiment of the present invention;

8 is a table showing in detail information corresponding to bytes of an EDID, according to an embodiment of the present invention;

9 is a diagram illustrating an example of an EDID in which function information of a TV is recorded according to an embodiment of the present invention;

10 is a table showing whether the BD wise image quality mode is executed according to whether the BD wise image quality mode of the TV and the BD player is on or off according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

200: TV 300: BD player

210: broadcasting receiver 220: A / V processing unit

230: audio output unit 240: display unit

250: storage unit 260: HDMI interface receiving terminal

270 control unit 280 remote control receiver

290: remote control 310: HDMI interface transmission terminal

320: control unit 330: BD player function unit

Claims (22)

In the video device connected to the external device, An interface connected to the external device; And And a controller configured to transmit the video device information and the video device function information of the video device to the external device through the interface, and receive the external device information and the external device function information of the external device from the external device. The video device function information includes information on whether the video device supports a specific function. The external device function information includes information on whether the external device supports the specific function, The control unit, And if the external device supports a specific function in the received external device function information, and the video device also supports the specific function, executing the specific function. The method of claim 1, The specific function And a function related to an image quality mode. The method according to claim 1 or 2, The specific function, And the image device receives data from which the image quality mode of the image is not adjusted from the external device, and adjusts the image quality mode of the image in the image device. The method of claim 2, The image quality mode is Imaging device characterized in that the mode for adjusting at least one of the resolution, sharpness, Brightness, Noise Reduction, Hue, Saturation The method of claim 1, The interface is, An imaging device characterized by being an interface of the HDMI (High Definition Multimedia Interface) standard. The method of claim 1, The external device information, Received in the format of an SPD (Source Product Description) InfoFrame, The external device function information, And receiving at least one data byte included in the SPD InfoFrame. The method of claim 1, The control unit, And transmitting the video device information to the external device in an EDID (Enhanced Display Identification Data) format, and recording the video device function information in at least one byte included in the EDID. Video equipment. In the control method of the video device connected to the external device through the interface, Transmitting video device information and video device function information of the video device to the external device; Receiving external device information and external device function information of the external device from the external device; And If the external device supports the specific function in the received external device function information and the video device also supports the specific function, executing the specific function; The video device function information, Information on whether the video device supports the specific function; The external device function information, And controlling whether the external device supports the specific function. The method of claim 8, The specific function And a function related to an image quality mode. The method according to claim 8 or 9, wherein The step of executing the specific function, And controlling the image quality mode of the image from the external device by receiving data from which the image quality mode of the image has not been adjusted, from the external device. 10. The method of claim 9, The image quality mode is Imaging device characterized in that the mode for adjusting at least one of the resolution, sharpness, Brightness, Noise Reduction, Hue, Saturation The method of claim 8, The receiving step, Receiving the external device information and the external device function information through the video signal channel of the interface, The transmitting step, And transmitting the video device information and the video device function information to the external device through the data channel of the interface. The method of claim 12, The interface is, A video device control method characterized in that the interface of the HDMI (High Definition Multimedia Interface) standard. The method of claim 12, The video signal channel, Transition Minimized Differential Signaling (TMDS) signal channel of the HDMI interface, The data channel, And a display data channel (DDC) of the HDMI interface. In the external device connected to the video device, An interface connected to the video device; And And a controller for transmitting the external device information and the external device function information of the external device to the video device through the interface and receiving the video device information and the video device function information of the video device from the video device. The external device function information includes information on whether the external device supports a specific function. The video device function information includes information on whether the video device supports the specific function. The control unit, And when the video device supports a specific function in the received video device function information, and the external device also supports the specific function, executing the specific function. The method of claim 15, The specific function An external device comprising a function related to an image quality mode. The method according to claim 15 or 16, wherein The specific function, And the external device transmits data to which the image quality mode of the image is not adjusted so that the image device adjusts the image quality mode. The method of claim 16, The image quality mode is External device characterized in that the mode for adjusting at least one of the resolution, sharpness, Brightness, Noise Reduction, Hue, Saturation. In the control method of the external device connected to the video device through the interface, Transmitting external device information and external device function information of the external device to the video device; Receiving video device information and video device function information of the video device from the video device; And And executing the specific function when the video device supports a specific function in the received video device function information and the external device also supports the specific function. The external device function information, Includes information on whether the external device supports the specific function; The video device function information, And an information on whether the video device supports the specific function. The method of claim 19, The specific function An external device control method comprising a function related to an image quality mode. The method of claim 19 or 20, The step of executing the specific function, And the external device executes a function of transmitting data to which the image quality mode of the image is not adjusted to the image apparatus so that the image apparatus adjusts the image quality mode. The method of claim 20, The image quality mode is External device control method characterized in that the mode for adjusting at least one of the resolution, sharpness, Brightness, Noise Reduction, Hue, Saturation.

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