CN106303335A - A kind for the treatment of method and apparatus of extending display identification data EDID - Google Patents

Abstract

The invention discloses a processing method and device for extended display identification data EDID, which realizes dynamic refresh of EDID. The method includes: when the external device connected to the display device supports Dolby Atmos ATMOS capability, controlling the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device; The EDID of the display device is updated to obtain the updated EDID; the updated EDID is loaded into the HDMI module; the HDMI module is controlled to reconnect the display device with the external device.

Description

A processing method and device for extended display identification data EDID

technical field

The present invention relates to the field of communication technology, in particular to a method and device for processing Extended Display Identification Data (EDID).

Background technique

Dolby Atmos (Dolby Atmos, also referred to as ATMOS) is a new cinema audio platform developed by Dolby Laboratories and released on April 24, 2012. It breaks through the concept of 5.1 and 7.1 channels in the traditional sense, and can combine video content to present dynamic sound effects. Different from the previous audio signal that controls one side of the theater to produce the same sound, it can make multiple speakers on one side produce different sounds one by one, creating a more realistic sound effect from far to near; with the addition of speakers on the ceiling, it can realize Surrounded by the sound field, it shows more sound details and enhances the audience's viewing experience.

At present, a display device generally includes a High Definition Multimedia Interface (HDMI) module, and the EDID of the display device is usually stored in the HDMI module, wherein the EDID is a Video Electronics Standards Association (Video Electronics Standards Association, VESA) standard data format, which contains parameters about the display of the display device and its performance, including supplier information, maximum image size, color settings, factory presets, frequency range limitations, and strings for the display name and serial number, etc. The external device will read the EDID from the HDMI module when the HDMI is hot plugged. The purpose is to know the features supported by the display device, and then output related content according to the features supported by the display device.

With the emergence of the ATMOS function, in order to enable the external device to output relevant content according to the characteristics supported by the display device, it is required that the display device can dynamically modify its EDID in time when it is connected to an external device that supports the ATMOS function.

However, in the prior art, there is no solution for dynamically modifying the EDID of the display device.

Contents of the invention

Embodiments of the present invention provide a processing method and device for extended display identification data EDID, which realize dynamic refresh of EDID.

Embodiments of the present invention adopt the following technical solutions:

The first aspect of the present application provides a processing method for extended display identification data EDID, including:

When the external device connected to the display device supports the Dolby Atmos ATMOS capability, control the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device;

updating the EDID of the display device to obtain the updated EDID;

Loading the updated EDID into the HDMI module;

and controlling the HDMI module to reconnect the display device with the external device.

In a first possible implementation manner of the first aspect, controlling the HDMI module of the display device to disconnect the display device from the external device, specifically includes:

Sending to the HDMI module a first instruction for disconnecting the resistor controlling the over-modulation differential signal TMDS in the HDMI module, so that the TMDS transmission channel is disconnected;

Sending a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state to the HDMI module, so that the HDMI module is disconnected from the external device;

sending a third instruction for disconnecting the display data channel DDC in the HDMI module to the HDMI module, so that the DDC is disconnected;

Controlling the HDMI module to reconnect the display device with the external device, specifically includes:

Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established;

Send a fifth instruction for connecting the resistor to the HDMI module, so that the TMDS transmission channel is re-established;

Sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that the HDMI module re-establishes a connection with the external device.

In a second possible implementation manner of the first aspect, controlling the HDMI module of the display device to disconnect the display device from the external device, specifically includes:

Sending a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state to the HDMI module, so that the HDMI module is disconnected from the external device;

sending a third instruction for disconnecting the display data channel DDC in the HDMI module to the HDMI module, so that the DDC is disconnected;

Controlling the HDMI module to reconnect the display device with the external device, specifically includes:

Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established;

Sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that the HDMI module re-establishes a connection with the external device.

According to the first aspect, the first possible implementation manner of the first aspect, or the second possible implementation manner, in a third possible implementation manner, the EDID of the display device is updated to obtain the updated EDID , including:

Determine the target position and target value that the EDID of the display device needs to update;

The current value of the target position is updated to the target value to obtain the updated EDID.

According to the first aspect, the first possible implementation of the first aspect, the second possible implementation, or the third possible implementation, in a fourth possible implementation, it is determined whether the external device supports ATMOS capabilities, including:

Obtain the audio capability set of the external device;

According to the audio capability set of the external device, it is judged whether the external device supports ATMOS capability.

The second aspect provides a processing method for extended display identification data EDID, including:

When it is judged that the external device connected to the display device supports the Dolby Atmos ATMOS capability, the HDMI module of the display device is deinitialized;

updating the EDID of the display device to obtain the updated EDID;

The HDMI module is reinitialized, and the updated EDID is loaded into the reinitialized HDMI module.

In the first possible implementation manner of the second aspect, the EDID of the display device is updated to obtain the updated EDID, which specifically includes:

Determine the target position and target value that the EDID of the display device needs to update;

The current value of the target position is updated to the target value to obtain the updated EDID.

According to the second aspect or the first possible implementation of the second aspect, in a second possible implementation, determining whether the external device supports ATMOS capabilities includes:

Obtain the audio capability set of the external device;

According to the audio capability set of the external device, it is judged whether the external device supports ATMOS capability.

The third aspect provides a processing device for extended display identification data EDID, including:

The first control unit is configured to control the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device when the external device connected to the display device supports Dolby Atmos ATMOS capability. ;

An updating unit, configured to update the EDID of the display device to obtain the updated EDID;

a loading unit, configured to load the EDID updated by the updating unit into the HDMI module;

The second control unit is configured to control the HDMI module to reconnect the display device with the external device.

In a first possible implementation manner of the third aspect, the first control unit is specifically configured to:

Send to the HDMI module a first instruction for disconnecting the resistance of the control over-modulation differential signal TMDS in the HDMI module, so that the TMDS transmission channel is disconnected; The second instruction that the Hot Plug state is adjusted to a disconnected state is used to disconnect the HDMI module from the external device; and send a DDC for disconnecting the display data channel in the HDMI module to the HDMI module The third command causes the DDC to turn off; then

The second control unit is specifically used for:

Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; send a fifth instruction for connecting the resistor to the HDMI module, so that the TMDS transmission channel is re-established; The HDMI module sends a sixth instruction for adjusting the Hot Plug state to a connection recovery state, so that the HDMI module re-establishes a connection with the external device.

In a second possible implementation manner of the third aspect, the first control unit is specifically configured to:

Sending to the HDMI module a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state, so that the HDMI module is disconnected from the external device; sending a third instruction for disconnecting the display data channel DDC in the HDMI module, so that the DDC is disconnected; then

The second control unit is specifically used for:

Sending a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that The HDMI module re-establishes a connection with the external device.

According to the third aspect, the first possible implementation manner or the second possible implementation manner of the third aspect, in the third possible implementation manner, the updating unit is specifically configured to:

Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID.

According to the third aspect, the first possible implementation manner of the third aspect, the second possible implementation manner, or the third possible implementation manner, in a fourth possible implementation manner, the device further includes:

an acquisition unit, configured to acquire the audio capability set of the external device;

A judging unit, configured to judge whether the external device supports the ATMOS capability according to the audio capability set of the external device acquired by the acquiring unit.

The fourth aspect provides an EDID processing device, including:

The deinitialization unit is used to deinitialize the HDMI module of the display device when it is judged that the external device connected to the display device supports Dolby Atmos ATMOS capability;

An updating unit, configured to update the EDID of the display device to obtain the updated EDID;

The initialization unit is configured to re-initialize the HDMI module, and load the EDID updated by the updating unit into the re-initialized HDMI module.

In a first possible implementation manner of the second aspect, the updating unit is specifically configured to:

Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID.

According to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the device further includes:

an acquisition unit, configured to acquire the audio capability set of the external device;

A judging unit, configured to judge whether the external device supports the ATMOS capability according to the audio capability set of the external device acquired by the acquiring unit.

The beneficial effects of the embodiments of the present invention are as follows:

In the embodiment of the present invention, on the one hand, when the external device connected to the display device supports the ATMOS capability, the HDMI module of the display device is controlled to disconnect the display device from the external device, and the EDID of the display device is updated to obtain the updated EDID, load the updated EDID into the HDMI module, and then control the HDMI module to reconnect the display device with the external device, so as to achieve the effect of dynamically refreshing the EDID of the display device.

On the other hand, when the external device connected to the display device supports the ATMOS capability, the HDMI module of the display device is deinitialized, the display device is disconnected from the external device, and the EDID of the display device is updated to obtain the updated EDID. Then re-initialize the HDMI module, and load the updated EDID into the re-initialized HDMI module, thereby achieving the effect of dynamically refreshing the EDID of the display device.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of an architecture of an HDMI module in the prior art;

Fig. 2 is the implementation flowchart of a kind of processing method of EDID provided by the embodiment of the present invention;

FIG. 3 is an implementation flowchart of an EDID processing method provided by an embodiment of the present invention;

FIG. 4 is a specific flowchart of an EDID processing method provided by an embodiment of the present invention;

FIG. 5 is an implementation flowchart of another EDID processing method provided by an embodiment of the present invention;

FIG. 6 is a specific flowchart of another EDID processing method provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a first EDID processing device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a second EDID processing device provided by an embodiment of the present invention.

detailed description

In order to solve the problems existing in the prior art, the applicant conducted an in-depth analysis on the HDMI module in the prior art.

As shown in FIG. 1 , it is a schematic diagram of an architecture of an HDMI module. Wherein, the HDMI sending end can be any device that supports HDMI module output, and the HDMI receiving end can be any device with HDMI module input. Whether they are audio equipment, video equipment or control equipment, HDMI modules can be applied to them.

In the HDMI module, the data signal adopts Transition Minimized Differential Signaling (TMDS) protocol. This data transmission protocol was once widely used in digital visual interface (Digital Visual Interface, DVI) modules. The data signal on the HDMI module also follows this protocol. This protocol converts standard 8-bit data into 10-bit signals and uses differential transmission during the conversion. The technology of differential transmission has also been widely used in the data transmission of Gigabit Ethernet. Among them, there are three different TMDS transmission channels and a clock channel between the HDMI transmitter and HDMI receiver, these channels support video, audio data and additional information, video, audio data and additional information pass through three TMDS transmission channels It is transmitted to the HDMI receiver, and the pixel clock of the video is transmitted through the clock channel. After receiving the frequency parameter, the HDMI receiver restores the information transmitted by the other three TMDS transmission channels.

Before the HDMI module transmits data, the HDMI sender and the HDMI receiver can use the Display Data Channel (DDC) to know each other’s transmission and reception capabilities, but in practical applications, the HDMI sender only needs to know the HDMI receiver one-way terminal capabilities.

Based on the above analysis of the HDMI module, the embodiment of the present invention provides an EDID processing solution. In this technical solution, on the one hand, when the external device connected to the display device supports the ATMOS capability, the HDMI module of the display device is controlled to disconnect the display device from the external device, and the EDID of the display device is updated to obtain the updated EDID, load the updated EDID into the HDMI module, and then control the HDMI module to reconnect the display device with the external device, so as to achieve the effect of dynamically refreshing the EDID of the display device; on the other hand, when the external device connected to the display device supports For ATMOS capability, de-initialize the HDMI module of the display device, disconnect the display device from the external device, and update the EDID of the display device to obtain the updated EDID, then re-initialize the HDMI module, and update the EDID Load it into the reinitialized HDMI module, so as to achieve the effect of dynamically refreshing the EDID of the display device.

The embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. And in the case of no conflict, the embodiments and the features of the embodiments in the present invention can be combined with each other.

The embodiment of the present invention provides a processing method of EDID, as shown in FIG. 2 , which is a flow chart for the realization of the method, and specifically includes the following steps:

Step 21, when the external device connected to the display device supports the ATMOS capability, control the HDMI module of the display device to disconnect the display device from the external device.

Wherein, the external device in the embodiment of the present invention may be, but not limited to, an audio device, such as a stereo.

In the embodiment of the present invention, after the display device is connected to the external device, it is first necessary to judge whether the external device supports ATMOS capability. Knowing that the display device also supports the ATMOS capability, and then outputting corresponding content to the display device according to the ATMOS capability.

Therefore, in order to enable the display device to refresh its own EDID, in the embodiment of the present invention, when it is determined that the external device connected to the display device supports the ATMOS capability, the HDMI module of the display device is controlled to disconnect the display device from the external device, so that the external device The device could not get the EDID which shows the device is not updated.

Optionally, in the embodiment of the present invention, the audio capability set of the external device may be obtained first, and then it may be determined whether the external device supports the ATMOS capability according to the audio capability set of the external device.

Step 22, updating the EDID of the display device to obtain the updated EDID.

Specifically, by analyzing the EDID of the display device, it is possible to determine the target position and the target value of the EDID of the display device to be updated, and then update the determined current value of the target position to the target value, thereby obtaining the updated EDID.

Step 23, load the updated EDID into the HDMI module.

Step 24, controlling the HDMI module of the display device to reconnect the display device with the external device.

After the display device is reconnected to the external device, the external device can read its updated EDID from the display device.

The embodiment of the present invention also provides a processing method of EDID, as shown in FIG. 3 , which is a flowchart of the implementation of the method, specifically including the following steps:

Step 31, when it is determined that the external device connected to the display device supports the ATMOS capability, deinitialize the HDMI module of the display device.

Wherein, the external device in the embodiment of the present invention may be, but not limited to, an audio device, such as a stereo.

In the embodiment of the present invention, after the display device is connected to the external device, it is first necessary to judge whether the external device supports ATMOS capability. Knowing that the display device also supports the ATMOS capability, and then outputting corresponding content to the display device according to the ATMOS capability.

Therefore, in order to enable the display device to refresh its own EDID, in the embodiment of the present invention, when it is determined that the external device connected to the display device supports the ATMOS capability, the HDMI module of the display device is deinitialized, that is, the HDMI module of the display device is powered off, so that The display device is disconnected from the external device, so that the external device cannot obtain the EDID that has not been updated by the display device.

Optionally, in the embodiment of the present invention, the audio capability set of the external device may be obtained first, and then it may be determined whether the external device supports the ATMOS capability according to the audio capability set of the external device.

Step 32, updating the EDID of the display device to obtain the updated EDID.

Specifically, by analyzing the EDID of the display device, it is possible to determine the target position and the target value of the EDID of the display device to be updated, and then update the determined current value of the target position to the target value, thereby obtaining the updated EDID.

Step 33, reinitialize the HDMI module of the display device, and load the updated EDID into the reinitialized HDMI module.

Among them, re-initialization means that the HDMI module is powered on again to restore a normal working state. In the process of reinitializing the HDMI module of the display device, the updated EDID will be loaded, so that the external device can read its updated EDID from the display device.

Specifically, in the embodiment of the present invention, it may be implemented by resetting and restarting the HDMI module.

In order to better understand the embodiments of the present invention, the specific implementation process of the embodiments of the present invention will be described below in combination with specific implementations.

Embodiment one

As shown in FIG. 4, it is a specific flow chart of an EDID processing method provided by an embodiment of the present invention, which specifically includes the following steps:

Step 41, acquire the audio capability set of the external device.

Specifically, the audio capability set of the external device may be acquired, but not limited to, through a consumer electronics control (Consumer Electronics Control, CEC) module in the display device.

Step 42, according to the audio capability set of the external device, it is judged whether the external device supports the ATMOS capability. When the judgment result is yes, continue to execute step 43, and when the judgment result is no, the flow ends.

Specifically, whether the external device supports the ATMOS capability can be determined by determining whether the audio capability set of the external device includes an identifier indicating that it supports the ATMOS capability.

Step 43, sending a first instruction for disconnecting the resistor controlling TMDS in the HDMI module to the HDMI module of the display device, so as to disconnect the TMDS transmission channel.

Specifically, when the HDMI module receives the first instruction, the resistor controlling TMDS is disconnected by changing the relevant value in the HDMI register, thereby disconnecting the TMDS channel.

Step 44, sending a second instruction for adjusting the HotPlug state of the HDMI module to a disconnected state to the HDMI module of the display device, so that the HDMI module is disconnected from the external device.

Specifically, when the HDMI module receives the second instruction, the HDMI module is disconnected from the external device by changing the Hot Plug identifier in the HDMI register.

Step 45, sending a third instruction for disconnecting the DDC in the HDMI module to the HDMI module of the display device, so as to disconnect the DDC.

Specifically, when the HDMI module receives the third instruction, the DDC is disconnected by changing the relevant value in the HDMI register.

So far, the display device is disconnected from the external device, and the external device cannot read the EDID of the display device.

Step 46, determine the target position and target value of the EDID of the display device to be updated, update the current value of the target position to the target value, obtain the updated EDID, and load the updated EDID into the HDMI module.

Step 47, sending a fourth instruction for re-establishing the DDC to the HDMI module of the display device, so that the DDC is re-established.

Specifically, when the HDMI module receives the fourth instruction, the DDC is re-established by changing the relevant value in the HDMI register.

Step 48, sending a fifth instruction for connecting a resistor controlling TMDS to the HDMI module of the display device, so as to re-establish the TMDS transmission channel.

Specifically, when the HDMI module receives the fifth instruction, it changes the relevant value in the HDMI register to connect the resistance controlling the TMDS, thereby re-establishing the TMDS transmission channel.

Step 49, sending a sixth instruction for adjusting the Hot Plug state to the connection recovery state to the HDMI module of the display device, so that the HDMI module and the external device re-establish a connection.

Specifically, when the HDMI module receives the sixth instruction, the HDMI module re-establishes a connection with the external device by changing the Hot Plug identifier in the HDMI register.

So far, the display device is reconnected to the external device, and the external device reads the updated EDID in the display device.

Embodiment two

As shown in FIG. 5, it is a specific flow chart of another EDID processing method provided by the embodiment of the present invention, which specifically includes the following steps:

Step 51, acquire the audio capability set of the external device.

Specifically, the audio capability set of the external device may be acquired, but not limited to, through the CEC module in the display device.

Step 52: According to the audio capability set of the external device, it is judged whether the external device supports the ATMOS capability. When the judgment result is yes, continue to execute step 53, and when the judgment result is no, the flow ends.

Specifically, whether the external device supports the ATMOS capability can be determined by determining whether the audio capability set of the external device includes an identifier indicating that it supports the ATMOS capability.

Step 53, sending a second instruction for adjusting the HotPlug state of the HDMI module to a disconnected state to the HDMI module of the display device, so that the HDMI module is disconnected from the external device.

Specifically, when the HDMI module receives the second instruction, the HDMI module is disconnected from the external device by changing the Hot Plug identifier in the HDMI register.

Step 54, sending a third instruction for disconnecting the DDC in the HDMI module to the HDMI module of the display device, so as to disconnect the DDC.

Specifically, when the HDMI module receives the third instruction, the DDC is disconnected by changing the relevant value in the HDMI register.

So far, the display device is disconnected from the external device, and the external device cannot read the EDID of the display device.

Step 55, determine the target position and target value of the EDID of the display device to be updated, update the current value of the target position to the target value, obtain the updated EDID, and load the updated EDID into the HDMI module.

Step 56, sending a fourth instruction for re-establishing the DDC to the HDMI module of the display device, so that the DDC is re-established.

Specifically, when the HDMI module receives the fourth instruction, the DDC is re-established by changing the relevant value in the HDMI register.

Step 57, sending a sixth instruction for adjusting the Hot Plug state to the connection recovery state to the HDMI module of the display device, so that the HDMI module and the external device re-establish a connection.

Specifically, when the HDMI module receives the sixth instruction, the HDMI module re-establishes a connection with the external device by changing the Hot Plug identifier in the HDMI register.

So far, the display device is reconnected to the external device, and the external device reads the updated EDID in the display device.

Compared with the above-mentioned first embodiment, the second embodiment has the advantage that the refreshing speed is faster, and the disadvantage is that the compatibility is not ideal.

Embodiment three

As shown in FIG. 6, it is a specific flowchart of another EDID processing method provided by the embodiment of the present invention, which specifically includes the following steps:

Step 61, acquire the audio capability set of the external device.

Specifically, the audio capability set of the external device may be acquired, but not limited to, through the CEC module in the display device.

Step 62: According to the audio capability set of the external device, it is judged whether the external device supports the ATMOS capability. When the judgment result is yes, continue to execute step 63, and when the judgment result is no, the flow ends.

Specifically, whether the external device supports the ATMOS capability can be determined by determining whether the audio capability set of the external device includes an identifier indicating that it supports the ATMOS capability.

Step 63, deinitialize the HDMI module of the display device.

So far, the display device is disconnected from the external device, and the external device cannot read the EDID of the display device.

Step 64: Determine the target position and target value of the EDID of the display device that needs to be updated, update the current value of the target position to the target value, and obtain the updated EDID.

Step 65, reinitialize the HDMI module of the display device, and load the updated EDID into the reinitialized HDMI module.

So far, the display device is reconnected to the external device, and the external device reads the updated EDID in the display device.

Based on the same inventive concept, an EDID processing device is also provided in the embodiment of the present invention. Since the problem-solving principle of the above-mentioned device is similar to the EDID processing method, the implementation of the above-mentioned device can refer to the implementation of the method, and there are no repetitions. Let me repeat.

As shown in FIG. 7, it is a schematic structural diagram of the first EDID processing device provided by the embodiment of the present invention, including:

The first control unit 71 is configured to control the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device when the external device connected to the display device supports the Dolby Atmos ATMOS capability connect;

An updating unit 72, configured to update the EDID of the display device to obtain the updated EDID;

A loading unit 73, configured to load the EDID updated by the updating unit 72 into the HDMI module;

The second control unit 74 is configured to control the HDMI module to reconnect the display device with the external device.

Wherein, the first control unit 71 is specifically used for:

Send to the HDMI module a first instruction for disconnecting the resistance of the control over-modulation differential signal TMDS in the HDMI module, so that the TMDS transmission channel is disconnected; The second instruction that the Hot Plug state is adjusted to a disconnected state is used to disconnect the HDMI module from the external device; and send a DDC for disconnecting the display data channel in the HDMI module to the HDMI module The third command causes the DDC to turn off; then

The second control unit 74 is specifically used for:

Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; send a fifth instruction for connecting the resistor to the HDMI module, so that the TMDS transmission channel is re-established; The HDMI module sends a sixth instruction for adjusting the Hot Plug state to a connection recovery state, so that the HDMI module re-establishes a connection with the external device.

Or, the first control unit 71 is specifically used for:

Sending to the HDMI module a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state, so that the HDMI module is disconnected from the external device; sending a third instruction for disconnecting the display data channel DDC in the HDMI module, so that the DDC is disconnected; then

The second control unit 74 is specifically used for:

Sending a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that The HDMI module re-establishes a connection with the external device.

Wherein, the updating unit 72 is specifically used for:

Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID.

Wherein, the device also includes:

An acquisition unit 75, configured to acquire the audio capability set of the external device;

The determining unit 76 is configured to determine whether the external device supports the ATMOS capability according to the audio capability set of the external device obtained by the obtaining unit 75 .

For the convenience of description, the above parts are divided into modules (or units) according to their functions and described separately. Certainly, when implementing the present invention, the functions of each module (or unit) can be implemented in one or more pieces of software or hardware.

During specific implementation, the above-mentioned EDID processing apparatus may be set in a display device.

As shown in FIG. 8, it is a schematic structural diagram of the second EDID processing device provided by the embodiment of the present invention, including:

The deinitialization unit 81 is used to deinitialize the HDMI module of the display device when it is judged that the external device connected to the display device supports the Dolby Atmos ATMOS capability;

An updating unit 82, configured to update the EDID of the display device to obtain the updated EDID;

The initialization unit 83 is configured to re-initialize the HDMI module, and load the EDID updated by the updating unit 82 into the re-initialized HDMI module.

Wherein, the updating unit 82 is specifically used for:

Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID.

Wherein, the device also includes:

An acquiring unit 84, configured to acquire the audio capability set of the external device;

The determining unit 85 is configured to determine whether the external device supports the ATMOS capability according to the audio capability set of the external device obtained by the obtaining unit 84 .

For the convenience of description, the above parts are divided into modules (or units) according to their functions and described separately. Certainly, when implementing the present invention, the functions of each module (or unit) can be implemented in one or more pieces of software or hardware.

During specific implementation, the above-mentioned EDID processing apparatus may be set in a display device.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (16)

1. A processing method for expanding display identification data EDID, characterized in that, comprising: When the external device connected to the display device supports the Dolby Atmos ATMOS capability, control the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device; updating the EDID of the display device to obtain the updated EDID; Loading the updated EDID into the HDMI module; and controlling the HDMI module to reconnect the display device with the external device. 2. The method according to claim 1, wherein controlling the HDMI module of the display device to disconnect the display device from the external device communicates, specifically comprising: Sending to the HDMI module a first instruction for disconnecting the resistor controlling the over-modulation differential signal TMDS in the HDMI module, so that the TMDS transmission channel is disconnected; Sending a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state to the HDMI module, so that the HDMI module is disconnected from the external device; sending a third instruction for disconnecting the display data channel DDC in the HDMI module to the HDMI module, so that the DDC is disconnected; Controlling the HDMI module to reconnect the display device with the external device, specifically includes: Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; Send a fifth instruction for connecting the resistor to the HDMI module, so that the TMDS transmission channel is re-established; Sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that the HDMI module re-establishes a connection with the external device. 3. The method according to claim 1, wherein controlling the HDMI module of the display device to disconnect the display device from the external device communicates, specifically comprising: Sending a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state to the HDMI module, so that the HDMI module is disconnected from the external device; sending a third instruction for disconnecting the display data channel DDC in the HDMI module to the HDMI module, so that the DDC is disconnected; Controlling the HDMI module to reconnect the display device with the external device, specifically includes: Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; Sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that the HDMI module re-establishes a connection with the external device. 4. The method according to any one of claims 1-3, wherein the EDID of the display device is updated to obtain the updated EDID, which specifically includes: Determine the target position and target value that the EDID of the display device needs to update; The current value of the target position is updated to the target value to obtain the updated EDID. 5. The method according to any one of claims 1-4, wherein determining whether the external device supports ATMOS capabilities comprises: Obtain the audio capability set of the external device; According to the audio capability set of the external device, it is judged whether the external device supports ATMOS capability. 6. A processing method for expanding display identification data EDID, characterized in that, comprising: When the external device connected to the display device supports the Dolby Atmos ATMOS capability, deinitialize the HDMI module of the display device; updating the EDID of the display device to obtain the updated EDID; The HDMI module is reinitialized, and the updated EDID is loaded into the reinitialized HDMI module. 7. The method according to claim 6, wherein the EDID of the display device is updated to obtain the updated EDID, which specifically includes: Determine the target position and target value that the EDID of the display device needs to update; The current value of the target position is updated to the target value to obtain the updated EDID. 8. The method according to claim 6 or 7, wherein determining whether the external device supports ATMOS capability comprises: Obtain the audio capability set of the external device; According to the audio capability set of the external device, it is judged whether the external device supports ATMOS capability. 9. A processing device for expanding display identification data EDID, characterized in that, comprising: The first control unit is configured to control the high-definition multimedia interface HDMI module of the display device to disconnect the display device from the external device when the external device connected to the display device supports Dolby Atmos ATMOS capability. ; An updating unit, configured to update the EDID of the display device to obtain the updated EDID; a loading unit, configured to load the EDID updated by the updating unit into the HDMI module; The second control unit is configured to control the HDMI module to reconnect the display device with the external device. 10. The device according to claim 9, wherein the first control unit is specifically used for: Send to the HDMI module a first instruction for disconnecting the resistance of the control over-modulation differential signal TMDS in the HDMI module, so that the TMDS transmission channel is disconnected; The second instruction that the Hot Plug state is adjusted to a disconnected state is used to disconnect the HDMI module from the external device; and send a DDC for disconnecting the display data channel in the HDMI module to the HDMI module The third instruction causes the DDC to be disconnected; then The second control unit is specifically used for: Send a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; send a fifth instruction for connecting the resistor to the HDMI module, so that the TMDS transmission channel is re-established; The HDMI module sends a sixth instruction for adjusting the Hot Plug state to a connection recovery state, so that the HDMI module re-establishes a connection with the external device. 11. The device according to claim 9, wherein the first control unit is specifically used for: Sending to the HDMI module a second instruction for adjusting the Hot Plug state of the HDMI module to a disconnected state, so that the HDMI module is disconnected from the external device; sending a third instruction for disconnecting the display data channel DDC in the HDMI module, so that the DDC is disconnected; then The second control unit is specifically used for: Sending a fourth instruction for re-establishing the DDC to the HDMI module, so that the DDC is re-established; sending a sixth instruction for adjusting the Hot Plug state to a connection recovery state to the HDMI module, so that The HDMI module re-establishes a connection with the external device. 12. The device according to any one of claims 9-11, wherein the updating unit is specifically used for: Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID. 13. The device according to any one of claims 9-12, further comprising: an acquisition unit, configured to acquire the audio capability set of the external device; A judging unit, configured to judge whether the external device supports the ATMOS capability according to the audio capability set of the external device acquired by the acquiring unit. 14. An EDID processing device, comprising: A deinitialization unit, configured to deinitialize the HDMI module of the display device when the external device connected to the display device supports the Dolby Atmos ATMOS capability; An updating unit, configured to update the EDID of the display device to obtain the updated EDID; The initialization unit is configured to re-initialize the HDMI module, and load the EDID updated by the updating unit into the re-initialized HDMI module. 15. The device according to claim 14, wherein the updating unit is specifically configured to: Determining a target position and a target value that need to be updated for the EDID of the display device; updating the current value of the target position to the target value to obtain an updated EDID. 16. The device according to claim 14 or 15, further comprising: an acquisition unit, configured to acquire the audio capability set of the external device; A judging unit, configured to judge whether the external device supports the ATMOS capability according to the audio capability set of the external device acquired by the acquiring unit.