WO2018028686A1

WO2018028686A1 - Method and system for switching hdmi output resolutions

Info

Publication number: WO2018028686A1
Application number: PCT/CN2017/097139
Authority: WO
Inventors: 方志刚; 余宝增
Original assignee: 深圳创维数字技术有限公司
Priority date: 2016-08-11
Filing date: 2017-08-11
Publication date: 2018-02-15
Also published as: CN106231229A

Abstract

A method and system for switching HDMI output resolutions. The method comprises: receiving an operation instruction for switching resolutions; controlling, on the basis of the operation instruction, an HDMI output resolution to switch from a first resolution to a second resolution; and when no confirmation information is received within a preset duration, then switching the HDMI output resolution to the first resolution.

Description

HDMI output resolution switching method and system

Technical field

The present disclosure relates to the field of HDMI technologies, for example, to an HDMI output resolution switching method and system.

Background technique

With the popularity of digital technology, high-definition digital multimedia interface (HDMI) is more and more widely used, especially in various digital set-top boxes. The HDMI interface has also become a mandatory interface recommended by many manufacturers and buyers.

For HDMI receivers, the resolution supported by different HDMI sink devices is different due to device variability. For example, some small-sized TVs do not support 1080P resolution, and users can switch the resolution of the HDMI output of devices such as set-top boxes. When the user switches the resolution of the HDMI output to 1080P resolution that is not supported by the TV, the TV cannot Displaying the contents of the set-top box output does not automatically switch back to the original resolution, which not only affects the user's viewing of the content at the appropriate resolution, but also increases the liability risk of the HDMI receiving device manufacturer.

Summary of the invention

This embodiment provides a method and system for switching HDMI output resolution. The method and system can solve the problem that when the HDMI receiving end is not compatible with some resolutions, the original resolution cannot be automatically switched back.

The embodiment provides a HDMI output resolution switching method, which may include:

Receiving an operation instruction for switching the resolution;

Controlling, according to the operation instruction, that the HDMI output resolution is switched from the first resolution to the second resolution;

Determining whether confirmation information is received within the preset duration;

The HDMI output resolution is switched to the first resolution when no confirmation information is received within the preset duration.

Optionally, the confirmation information includes at least one of a physical confirmation button command of the remote control device and a confirmation button command of the HDMI output.

Optionally, after the HDMI output resolution is switched from the first resolution to the second resolution, the method further includes:

The verification dialog information containing the verification information is sent to the HDMI receiving end.

Optionally, the verification information is a random code;

Sending, to the HDMI receiving end, the verification dialog information including the verification information, including:

Generating a first random code, and transmitting, to the HDMI receiving end, verification dialog information including the first random code;

The determining whether the verification information is received within the preset duration includes:

It is judged whether the second random code is received within the preset time period.

Optionally, after determining whether the second random code is received within the preset duration, the method includes:

When the second random code is received within the preset duration, it is determined whether the second random code is the same as the first random code.

Optionally, after the HDMI output resolution is switched to the first resolution, the method further includes:

Sending, to the HDMI receiving end, the prompt information that the HDMI receiving end does not support the second resolution.

Optionally, after determining whether the second random code is the same as the first random code, the method includes:

Determining that the HDMI output resolution is successfully switched when the second random code is the same as the first random code, and outputting according to the second resolution;

When the second random code is different from the first random code, the HDMI output resolution is cut Switch to the first resolution.

The embodiment further provides an HDMI output resolution switching system, which may include:

a first receiving unit configured to receive an operation instruction for switching resolution;

a switching unit configured to control the HDMI output resolution to be switched from the first resolution to the second resolution according to the operation instruction;

a first determining unit, configured to determine whether the confirmation information is received within the preset time period;

The return unit is configured to switch the HDMI output resolution to the first resolution when no confirmation information is received within the preset duration.

Optionally, the system further comprises:

The first sending unit is configured to: after the HDMI output resolution is switched from the first resolution to the second resolution, send verification dialog information including the verification information to the HDMI receiving end;

The second sending unit is configured to, after switching the HDMI output resolution to the first resolution, send, to the HDMI receiving end, prompt information that the HDMI receiving end does not support the second resolution.

Optionally, the verification information is a random code;

The first sending unit is configured to: generate a first random code, and send, to the HDMI receiving end, verification dialog information including the first random code;

The first determining unit is configured to: determine whether a second random code is received within a preset time period.

Optionally, the first determining unit includes:

a second receiving unit, configured to receive the second random code within a preset time period;

The third determining unit is configured to determine whether the second random code is the same as the first random code.

Optionally, the first determining unit further includes:

a determining unit, configured to determine that the HDMI output resolution is successfully switched when the second random code is the same as the first random code, and output according to the second resolution;

The returning unit is further configured to switch the HDMI output resolution to the first resolution when the second random code is different from the first random code.

The embodiment further provides a computer readable storage medium storing computer executable instructions for performing any of the above methods.

The embodiment further provides an HDMI output device including one or more processors, a memory, and one or more programs, the one or more programs being stored in the memory when processed by one or more When the device is executed, perform any of the above methods.

The embodiment further provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer Having the computer perform any of the methods described above.

In this embodiment, the compatibility of the HDMI receiving end is not good. When some resolutions are not supported, the HDMI output end automatically returns to the resolution before the switching, so that the HDMI output end continues to display, and the viewing experience of the user is improved.

DRAWINGS

FIG. 1 is a flowchart of a method for switching an HDMI output resolution provided by this embodiment.

FIG. 2 is a flowchart of another HDMI output resolution switching method provided by this embodiment.

FIG. 3 is a structural block diagram of an HDMI output resolution switching system provided by this embodiment.

4 is a block diagram showing the structure of another HDMI output resolution switching system provided by this embodiment.

FIG. 5 is a structural block diagram of a first determining unit provided in this embodiment.

FIG. 6 is a schematic structural diagram of hardware of an HDMI output device according to this embodiment.

detailed description

Please refer to FIG. 1 , which is a flowchart of a method for switching an HDMI output resolution according to the embodiment. The method can be applied to an HDMI output. As shown in FIG. 1 , the method may include the following steps:

In step 110, an operational command to switch resolution is received.

The HDMI output (ie, the HDMI output device) receives an operation command of the switching resolution input by the user. Optionally, the HDMI output is a digital set top box.

In step 120, the HDMI output resolution is controlled to be switched from the first resolution to the second resolution according to the operation instruction.

The first resolution is the current resolution, and the second resolution is the new resolution.

The HDMI output switches the HDMI output resolution from the first resolution to the second resolution; if the HDMI receiver supports the second resolution, the signal data transmitted by the HDMI output at the second resolution is normally displayed; and when HDMI When the receiving end does not support the second resolution, when the HDMI output transmits the signal at the second resolution, the HDMI receiving end cannot perform normal display, and the user cannot see the signal output from the HDMI output terminal from the HDMI receiving end, and sees It may be garbled or snowflake.

Optionally, the HDMI receiving end is an audio and video playing device, for example, the HDMI receiving end is a television set.

In step 130, it is determined whether the confirmation information is received within the preset time period, and when the confirmation information is not received within the preset time period, the HDMI output resolution is switched to the first resolution, that is, the current resolution.

The HDMI output terminal determines whether the confirmation information input by the user is received within the preset time period, and if the confirmation information input by the user is not received within the preset time period, the HDMI output resolution is switched to the first resolution; If the confirmation information input by the user is received within the preset time period, it is determined that the HDMI output resolution is successfully switched, and the signal or data is outputted at the second resolution.

Optionally, determining whether the confirmation information is received within the preset duration may include: determining whether a physical confirmation button instruction of the remote control device is received within the preset duration; or determining whether the physicality of the device is received within the preset duration Confirm the button command.

Among them, the device refers to the HDMI output terminal, that is, the HDMI output device, and the level of the physical button press and release process of the HDMI output device can be used as a physical confirmation button command, and the physical confirmation button command code of the HDMI output device And the response takes place inside the HDMI output device. If the HDMI output device is a set-top box, the set-top box can be provided with a physical confirmation button. When the user presses the physical confirmation button on the set-top box, the set-top box can receive the corresponding physical confirmation button command. The response speed is fast; the corresponding remote control device can also be configured for the set top box, and the remote control device needs to encode the key command according to the infrared remote control protocol. When the user presses the confirm button on the remote control device, the set top box can receive the physical confirmation button command of the remote control device. .

Optionally, the preset duration is 3 seconds, 5 seconds, or 10 seconds, and the like. When the HDMI receiving end does not support the second resolution, the data signal sent by the HDMI output terminal cannot be displayed, and thus the user cannot know whether to perform the switching confirmation operation or when to perform the switching confirmation operation; when the confirmation operation exceeds the duration When the preset time is long, the HDMI output automatically switches to the first resolution, so that the HDMI receiver continues to display normally. The above-mentioned switching confirmation operation inputs the confirmation information.

The embodiment receives the operation instruction of switching the resolution; switches the HDMI output resolution from the first resolution to the second resolution; if the verification information is not received within the preset time period, the HDMI output resolution is switched For the first resolution. It solves the problem that the compatibility of the HDMI receiving end is not good. When some resolutions are not supported, the HDMI output can not automatically return to the resolution before switching, so that the HDMI output continues to display, and the viewing experience of the user is improved.

Please refer to FIG. 2 , which is a flowchart of another HDMI output resolution switching method provided by this embodiment. As shown, the method can include the following steps:

In step 210, an operational command to switch resolution is received.

In step 220, it is determined whether the second resolution is the same as the first resolution, if otherwise, step 230 is performed, and if so, step 280 is performed.

The HDMI output determines whether the second resolution is the same as the first resolution; when it is determined that the second resolution is different from the first resolution, proceeding to step 230; when determining the second resolution and the first resolution If they are the same, then step 280 is performed.

In step 230, the HDMI output resolution is switched from the first resolution to the second resolution.

When the HDMI output determines that the second resolution is different from the first resolution, switching the HDMI output resolution from the first resolution to the second resolution, and saving the first resolution (ie, the current resolution) .

In step 240, verification dialog information containing the verification information is sent to the HDMI receiver.

The HDMI output sends a verification dialog message containing the verification information to the HDMI receiving end. When the HDMI receiving end supports the new resolution, the HDMI receiving end normally displays the verification dialog box containing the verification information; and when the HDMI receiving end does not support the first At the second resolution, the HDMI receiving end cannot display the verification dialog box containing the verification information normally, and garbled characters may appear. At this time, the user cannot see the verification dialog box containing the verification information through the display of the HDMI receiving end.

Optionally, the verification information is a random code. The sending the verification dialog information including the verification information to the HDMI receiving end, comprising: generating, by the HDMI output, a first random code, and transmitting, to the HDMI receiving end, verification dialog information including the first random code.

In step 250, it is determined whether confirmation information has been received within the preset time period. If not, step 260 is performed, and if so, step 270 is performed.

The confirmation information may also be referred to as verification information, and the HDMI output terminal determines whether the verification information input by the user is received within the preset time period, and determines whether the received verification information input by the user is related to the HDMI. The verification information generated by the output is the same.

Optionally, when the verification information is a random code, the verification information input by the user may be a second random code, and it is determined whether the second random code is received within the preset duration.

Optionally, when the second random code is received within the preset duration, determining whether the second random code matches the first random code, that is, determining whether the second random code is the same as the first random code . When the verification information input by the user is the same as the verification information generated by the HDMI output, proceed to step 270; when the HDMI output terminal does not receive the verification information input by the user within the preset time period, or the HDMI output terminal receives within the preset time period When the verification information input by the user is not the same as the verification information generated by the HDMI output, step 260 is continued.

In step 260, the HDMI output resolution is switched to the first resolution, and the prompt information that the HDMI receiving end does not support the second resolution is transmitted to the HDMI receiving end.

When the HDMI output terminal does not receive the verification information input by the user within the preset time period, or the HDMI output terminal receives the verification information input by the user within the preset time period, but the verification information is different from the verification information generated by the HDMI output terminal. The HDMI output switches the HDMI output resolution to the first resolution, and sends a prompt message to the HDMI receiver that the HDMI receiver does not support the second resolution.

For example, the verification information generated by the HDMI output is a four-digit verification code “Txf5”. If the user does not input the verification code, or the input verification code is different from the verification code, the HDMI output switches the HDMI output resolution to the above. First resolution.

In the case that the HDMI receiving end does not support the second resolution, the HDMI receiving end cannot display or cannot normally display the signal sent by the HDMI output terminal at the second resolution, so that the user cannot know the verification information to be input, and thus cannot Enter the correct verification information within the preset duration; in this case, when the HDMI output does not receive the correct authentication information input by the user within the preset duration, it is determined that the HDMI receiver does not support the second resolution at this time, and switches to First resolution, and to the HDMI receiver at the first resolution Sending the HDMI receiving end does not support the prompt information of the second resolution, and notifying the user that the HDMI receiving end does not support the second resolution, the user can continue to watch, and knows that the resolution cannot be switched, thereby effectively improving the user's Watch the experience.

In step 270, it is determined that the HDMI output resolution is successfully switched, and the output is performed according to the second resolution.

When the HDMI output receives the verification information input by the user within the preset time period, and the verification information is the same as the verification information generated by the HDMI output, the HDMI output determines that the HDMI output resolution is successfully switched, and remains through the second resolution. The rate is output, and the HDMI output sends a signal to the HDMI receiver according to the second resolution.

In step 280, the switch resolution operation is exited.

When it is determined that the second resolution is the same as the first resolution, the switching resolution operation is not required, and the HDMI output exits the switching resolution operation.

For example, the TV does not support 1080P resolution, and the resolution currently displayed by the TV is 720P. The user sends an operation command to switch the resolution to the set-top box, and requires switching to 1080P resolution. The set-top box determines that the 1080P resolution is different from the 720P resolution. Save 720P resolution, switch to 1080P resolution, send verification dialog information containing verification information to the TV at 1080P resolution. Since the TV does not support 1080P resolution, the TV cannot display the verification dialog containing the verification information. Box information, so the user can not know what authentication information needs to be input, can not input the correct verification information, the set-top box does not receive the verification information within 5 seconds (that is, the preset duration), then it is determined that the TV cannot support 1080P resolution, automatically Switch to 720P resolution, continue to send signals to the TV at 720P resolution, the TV returns to normal display, the user can continue to watch the program. The set-top box can also send a prompt message to the TV that the TV does not support 1080P resolution, so that the user knows the reason why the resolution cannot be switched.

In this embodiment, after receiving the switching resolution operation instruction, the HDMI output terminal first determines the switching priority. Whether the second resolution is the same as the first resolution, and the HDMI output resolution is switched under different conditions; when the correct verification information input by the user is received within the preset duration, it is determined that the resolution switching is successful, otherwise the switch is First resolution. It solves the problem that the compatibility of the HDMI receiving end is not good. When some resolutions are not supported, the HDMI output cannot automatically return to the resolution before the switching, so that the HDMI receiving end cannot continue the normal display problem and improve the user's viewing experience; When the HDMI receiving end does not support the second resolution, the HDMI receiving end may send the prompt message that the HDMI receiving end does not support the second resolution, so that the user knows that the resolution cannot be switched, and the HDMI output device manufacturer can be effectively avoided. Risk of liability.

The following is an embodiment of the HDMI output resolution switching system provided by the embodiment, which can perform the HDMI output resolution switching method provided in the foregoing embodiment, which is not described in the embodiment of the HDMI output resolution switching system. Please refer to the above embodiment of the HDMI output resolution switching method.

Please refer to FIG. 3 , which is a structural block diagram of an HDMI output resolution switching system provided by this embodiment. As shown, the system can include:

The first receiving unit 310 is configured to receive an operation instruction for switching the resolution.

The switching unit 320 is configured to control the HDMI output resolution to be switched from the first resolution to the second resolution according to the operation instruction.

The first determining unit 330 is configured to determine whether the confirmation information is received within the preset time period.

The return unit 340 is configured to switch the HDMI output resolution to the first resolution when no confirmation information is received within the preset duration.

In this embodiment, when the user switches the HDMI output resolution of the HDMI output end, if the confirmation information is not received within the preset time period, the output resolution before the switching is returned; the compatibility at the HDMI receiving end is not good. The problem that the resolution before the switching cannot be automatically returned to the resolution before the switching is not supported is improved, and the viewing experience of the user is improved.

Please refer to FIG. 4 , which is a structural diagram of another HDMI output resolution switching system provided by this embodiment. block diagram. As shown, the system can include:

The second determining unit 360 is configured to determine whether the second resolution is the same as the first resolution.

The exit unit 380 is configured to exit the switch resolution operation if the second resolution is the same as the first resolution.

The switching unit 320 is configured to switch the HDMI output resolution from the first resolution to the second resolution if the second resolution is different from the first resolution.

The first sending unit 350 is configured to send the verification dialog information including the verification information to the HDMI receiving end.

The verification frame corresponding to the verification dialog information may be displayed by the HDMI receiving end.

Optionally, the verification information is a random code.

The first sending unit 350 is configured to generate a first random code, and send verification dialog information including the first random code to the HDMI receiving end.

The first determining unit 330 is configured to determine whether the second random code is received within the preset time period.

As shown in FIG. 5, the first determining unit 330 may include: a second receiving unit 3302 and a third determining unit 3304.

The second receiving unit 3302 is configured to receive the second random code within a preset time period.

The third determining unit 3304 is configured to determine whether the second random code is the same as the first random code.

The returning unit 340 is configured to: if the confirmation information is not received within the preset time period, the HDMI is The output resolution is switched to the first resolution.

The second sending unit 370 is configured to send, to the HDMI receiving end, prompt information that the HDMI receiving end does not support the second resolution.

The first determining unit 330 may further include a determining unit 3306, configured to determine that the HDMI output resolution is successfully switched when the second random code is the same as the first random code, and output according to the second resolution. .

The returning unit 340 is further configured to switch the HDMI output resolution to the first resolution when the second random code is different from the first random code.

In this embodiment, after receiving the switching resolution operation instruction, the HDMI output determines whether the second resolution to be switched is the same as the first resolution, and performs resolution switching in a different case; When the correct verification information input by the user is received within the set time period, it is determined that the resolution switching is successful, otherwise, the first resolution is switched. It solves the problem that the compatibility of the HDMI receiving end is not good, and when some resolutions are not supported, the HDMI output cannot automatically return to the resolution before switching to continue the viewing, improving the user's viewing experience; and at the HDMI receiving end. When the second resolution is not supported, the HDMI receiving end is sent to the HDMI receiving end to indicate that the HDMI receiving end does not support the second resolution information, so that the user knows that the resolution cannot be switched, and the HDMI output device manufacturer's liability risk can be effectively avoided.

As shown in FIG. 6 , it is a hardware structure diagram of an HDMI output device provided by this embodiment. As shown in FIG. 6 , the HDMI output device includes: a processor 510 and a memory 520. Communication Interface 530 and bus 540.

The processor 510, the memory 520, and the communication interface 530 can be completed by each other through the bus 540. Communication. Communication interface 530 can be used for information transfer. Processor 510 can invoke logic instructions in memory 520 to perform any of the methods of the above-described embodiments.

The memory 520 may include a storage program area and a storage data area, and the storage program area may store an operating system and an application required for at least one function. The storage data area can store data and the like created according to the use of the HDMI output device. Further, the memory may include, for example, a volatile memory of a random access memory, and may also include a non-volatile memory. For example, at least one disk storage device, flash memory device, or other non-transitory solid state storage device.

Moreover, when the logic instructions in the memory 520 described above can be implemented in the form of software functional units and sold or used as separate products, the logic instructions can be stored in a computer readable storage medium. The technical solution of the present disclosure may be embodied in the form of a computer software product, which may be stored in a storage medium, and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) All or part of the steps of the method described in this embodiment are performed.

The storage medium may be a non-transitory storage medium or a transitory storage medium. The non-transitory storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. medium.

All or part of the processes in the foregoing embodiment may be completed by a computer program indicating related hardware, and the program may be stored in a non-transitory computer readable storage medium, and when the program is executed, may include the above The flow of an embodiment of the method.

Industrial applicability

The present disclosure provides an HDMI output resolution switching method and system, which can be used at the HDMI receiving end. Poor capacity, does not support some resolutions, so that the HDMI output automatically returns to the resolution before switching, so that users continue to watch the problem, improving the user's viewing experience.

Claims

A high-definition digital multimedia interface HDMI output resolution switching method is applied to an HDMI output, including:

Receiving an operation instruction for switching the resolution;

Controlling, according to the operation instruction, that the HDMI output resolution is switched from the first resolution to the second resolution;

Determining whether confirmation information is received within the preset duration;

The HDMI output resolution is switched to the first resolution when no confirmation information is received within the preset duration.
The method of claim 1, wherein after the HDMI output resolution is switched from the first resolution to the second resolution, the method further comprises:

Sends verification dialog information containing authentication information to the HDMI receiver.
The method of claim 2, wherein the verification information is a random code;

Sending, to the HDMI receiving end, the verification dialog information including the verification information, including:

Generating a first random code, and transmitting, to the HDMI receiving end, verification dialog information including the first random code;

The determining whether the confirmation information is received within the preset duration includes:

It is judged whether the second random code is received within the preset time period.
The method according to claim 3, wherein the determining, after receiving the second random code within the preset duration, comprises:

When the second random code is received within the preset duration, it is determined whether the second random code is the same as the first random code.
The method of claim 1, wherein after the switching the HDMI output resolution to the first resolution, the method further comprises:

Sending, to the HDMI receiving end, the prompt information that the HDMI receiving end does not support the second resolution.
The method according to claim 4, wherein after determining whether the second random code is identical to the first random code, the method comprises:

When the second random code is the same as the first random code, determining that the HDMI output resolution is successfully switched, and outputting according to the second resolution;

And when the second random code is different from the first random code, switching the HDMI output resolution to the first resolution.
The method of claim 1, wherein the confirmation information comprises at least one of a physical confirmation button command of the remote control device and a confirmation button command of the HDMI output.
An HDMI output resolution switching system, comprising:

a first receiving unit configured to receive an operation instruction for switching resolution;

a switching unit configured to control the HDMI output resolution to be switched from the first resolution to the second resolution according to the operation instruction;

a first determining unit, configured to determine whether the confirmation information is received within the preset time period;

The return unit is configured to switch the HDMI output resolution to the first resolution when no confirmation information is received within the preset duration.
The system of claim 8 further comprising:

a first sending unit configured to: after the HDMI output resolution is switched from the first resolution to the second resolution, send verification dialog information including the verification information to the HDMI receiving end;

The second sending unit is configured to, after switching the HDMI output resolution to the first resolution, send, to the HDMI receiving end, prompt information that the HDMI receiving end does not support the second resolution.
The HDMI output resolution switching system according to claim 9, wherein the verification information is a random code;

The first sending unit is configured to: generate a first random code, and send a packet to the HDMI receiving end The verification dialog information including the first random code;

The first determining unit is configured to: determine whether a second random code is received within a preset time period.
The system of claim 10, wherein the first determining unit comprises:

a second receiving unit, configured to receive the second random code within a preset time period;

The third determining unit is configured to determine whether the second random code is the same as the first random code.
The system of claim 10, wherein the first determining unit further comprises:

a determining unit, configured to determine that the HDMI output resolution is successfully switched when the second random code is the same as the first random code, and output according to the second resolution;

The returning unit is further configured to switch the HDMI output resolution to the first resolution when the second random code is different from the first random code.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-7.