WO2022033153A1

WO2022033153A1 - Display method and display device

Info

Publication number: WO2022033153A1
Application number: PCT/CN2021/099392
Authority: WO
Inventors: 李建军; 李明; 孙立庆
Original assignee: 海信视像科技股份有限公司
Priority date: 2020-08-13
Filing date: 2021-06-10
Publication date: 2022-02-17

Abstract

Disclosed are a display method and a display device. The method comprises: in response to a channel switching operation, if a switching request queue is non-empty, determining whether a request queue to be processed is empty; if it is determined that the request queue to be processed is non-empty, removing all channel information from the request queue to be processed, and storing, in the request queue to be processed, channel information that is currently to be subjected to switching; and when the switching request queue becomes empty, starting to execute a switching task of a channel in the request queue to be processed, and moving, to the switching request queue, the channel information in the request queue to be processed.

Description

A display method and display device

This application claims the priority of the application titled "A Channel Switching Method and Display Device" filed with the China Patent Office on September 8, 2020, with the application number of 202010934814.8; the entire contents of which are incorporated into this application by reference; the application requires Submitted to the China Patent Office on August 24, 2020, with the application number of 202010857714.X, the application titled "A playback control method and display device" has priority; its entire contents are incorporated into this application by reference; this application requires The priority of the application titled "Channel Switching Method and Display Device" filed with the China Patent Office on August 13, 2020, with the application number of 202010815022.9; the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of smart TVs, and in particular, to a display method and a display device.

Background technique

OTT (Over The Top) refers to providing various application services to users through the Internet. Currently, commonly used OTT devices include streaming media boxes, TV sticks, and smart TVs. Smart TVs can be connected to set-top boxes and OTT devices at the same time, so as to watch digital television (Digital Television, DTV) channels and Internet TV channels (ie, OTT channels).

A channel list is usually maintained in a smart TV, and the channel list records the channel information of DTV channels and OTT channels, and DTV channels and OTT channels are generally stored in the channel list crosswise, so that when the user clicks the channel switch button, it switches to The next channel of 's may be a DTV channel, or it may be an OTT channel.

SUMMARY OF THE INVENTION

The present application provides a display method and a display device.

The display device provided by the first aspect includes:

User interface for receiving user input operations;

The user interface is connected to a controller configured to perform:

In response to the switching channel operation, if the switching request queue is not empty, determine whether the pending request queue is empty;

If it is determined that the pending request queue is not empty, then all channel information in the pending request queue is removed, and the current channel information to be switched is stored in the pending request queue;

When the switching request queue becomes empty, start executing the switching task of the channel in the pending request queue, and move the channel information in the pending request queue to the switching request queue.

The channel switching method provided by the second aspect includes:

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings that need to be accessed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present application. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 exemplarily shows a schematic diagram of an operation scene between the display device 200 and the control apparatus 100;

FIG. 2 exemplarily shows the hardware configuration block diagram of the display device 200 in FIG. 1;

FIG. 3 exemplarily shows the hardware configuration block diagram of the control device 100 in FIG. 1;

FIG. 4 exemplarily shows a schematic diagram of the software configuration in the display device 200 in FIG. 1;

FIG. 5 exemplarily shows a schematic diagram of the icon control interface display of the application program in the display device 200;

FIG. 6 exemplarily shows a schematic diagram of the dynamic adjustment of each queue in the process of switching channels;

Fig. 7 exemplarily shows the flow chart of the channel switching method;

FIG. 8 exemplarily shows a flowchart of a playback control method provided by an embodiment of the present application;

FIG. 9 exemplarily shows an implementation flowchart of step S41 provided by the embodiment of the present application;

FIG. 10 exemplarily shows an implementation flowchart of step S42 provided by the embodiment of the present application;

FIG. 11 exemplarily shows a flowchart of a channel switching method according to some embodiments;

FIG. 12 exemplarily shows the implementation flow chart of step 101 according to some embodiments;

FIG. 13 exemplarily shows an implementation flowchart of another step 101 according to some embodiments;

An implementation flowchart of step 301 according to some embodiments is exemplarily shown in FIG. 14 .

detailed description

In order to make the objectives, implementations and advantages of the present application clearer, the exemplary embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the exemplary embodiments of the present application. Obviously, the exemplary embodiments described It is only a part of the embodiments of the present application, but not all of the embodiments.

Based on the exemplary embodiments described in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the appended claims of this application. Furthermore, while the disclosures in this application have been presented in terms of one or more illustrative examples, it should be understood that various aspects of this disclosure may also constitute a complete embodiment in isolation.

It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the embodiments described below, rather than intended to limit the embodiments of the present application. Unless otherwise specified, these terms are to be understood according to their ordinary and ordinary meanings.

The terms "first", "second", "third", etc. in the description and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and are not necessarily meant to limit specific Order or precedence unless otherwise indicated. It should be understood that the terms so used are interchangeable under appropriate circumstances, eg, can be implemented in an order other than those given in the illustration or description of the embodiments of the present application.

Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover but not exclusively include, for example, a product or device incorporating a series of components is not necessarily limited to those explicitly listed, but may include No other components are expressly listed or inherent to these products or devices.

The term "module" as used in this application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic or combination of hardware or/and software code capable of performing the function associated with that element.

As used in this application, the term "remote control" refers to a component of an electronic device, such as the display device disclosed in this application, that can wirelessly control the electronic device, usually over a short distance. Generally, infrared and/or radio frequency (RF) signals and/or Bluetooth are used to connect with electronic devices, and functional modules such as WiFi, wireless USB, Bluetooth, and motion sensors may also be included. For example, a hand-held touch remote control replaces most of the physical built-in hard keys in a general remote control device with a user interface in a touch screen.

The term "gesture" used in this application refers to a user's behavior that is used by a user to express an expected thought, action, purpose/or result through an action such as a change of hand shape or hand movement.

FIG. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in FIG. 1 , a user can operate the display device 200 through the smart device 300 or the control device 100 .

The control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or Bluetooth protocol communication, and other short-distance communication methods, and the display device 200 is controlled wirelessly or wiredly. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, and the like.

In some embodiments, a smart device 300 (eg, a mobile terminal, a tablet computer, a computer, a notebook computer, etc.) can also be used to control the display device 200 . For example, the display device 200 is controlled using an application running on the smart device.

In some embodiments, the display device 200 can also be controlled in a manner other than the control apparatus 100 and the smart device 300. For example, the module for acquiring voice commands configured inside the display device 200 can directly receive the user's voice command for control. , the user's voice command control can also be received through a voice control device provided outside the display device 200 device.

In some embodiments, the display device 200 is also in data communication with the server 400 . The display device 200 may be allowed to communicate via local area network (LAN), wireless local area network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200.

FIG. 2 exemplarily shows a configuration block diagram of the control apparatus 100 according to an exemplary embodiment. As shown in FIG. 3 , the control device 100 includes a controller 110 , a communication interface 130 , a user input/output interface 140 , a memory 190 , and a power supply 180 . The control device 100 can receive the user's input operation instruction, and convert the operation instruction into an instruction that the display device 200 can recognize and respond to, and play an intermediary role between the user and the display device 200 .

FIG. 2 is a block diagram showing a hardware configuration of a display device 200 according to an exemplary embodiment.

The display device 200 includes at least one of a tuner 210 , a communicator 220 , a detector 230 , an external device interface 240 , a controller 250 , a display 275 , an audio output interface 285 , a memory 260 , a power supply 290 , and a user interface 265 .

The display 275 includes a display screen component for presenting pictures, and a driving component for driving image display, for receiving image signals output from the controller, components for displaying video content, image content, and menu manipulation interfaces, and user manipulation UI interfaces .

The display 275 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

The communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example, the communicator may include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220 .

The user interface can be used to receive control signals from the control device 100 (eg, an infrared remote control, etc.).

The detector 230 is used to collect external environment or external interaction signals. For example, the detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which can be used to collect external environmental scenes, user attributes or user interaction gestures, or , the detector 230 includes a sound collector, such as a microphone, for receiving external sound.

The external device interface 240 may include, but is not limited to, the following: any one of high-definition multimedia interface (HDMI), analog or data high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. or multiple interfaces. It may also be a composite input/output interface formed by a plurality of the above-mentioned interfaces.

The controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

The controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in the memory 260 . The controller 250 controls the overall operation of the display apparatus 200 . For example, in response to receiving a user command for selecting a UI object to be displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user command.

Objects can be any of the optional objects, such as hyperlinks, icons, or other actionable controls. The operations related to the selected object include: displaying operations connected to hyperlinked pages, documents, images, etc., or executing operations of programs corresponding to the icons.

In some embodiments, the user may input user commands on a graphical user interface (GUI) displayed on the display 275, and the user input interface receives the user input commands through the graphical user interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through a sensor to receive the user input command.

"User interface" can refer to the medium interface for interaction and information exchange between application programs or operating systems and users, which realizes the conversion between the internal form of information and the form acceptable to users. The commonly used form of user interface is Graphical User Interface (GUI), which refers to a user interface related to computer operations displayed in a graphical manner. It can be an icon, window, control and other interface elements displayed on the display screen of the electronic device, wherein the control can include icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, Widgets, etc. visual interface elements.

Referring to FIG. 4 , in some embodiments, the system is divided into four layers, from top to bottom, they are an application layer (referred to as “application layer”), an application framework layer (referred to as “framework layer”) ”), the Android runtime and the system library layer (referred to as the “system runtime layer”), and the kernel layer.

In some embodiments, at least one application program runs in the application program layer, and these application programs may be a Window program, a system setting program, a clock program, a camera application, etc. built into the operating system; they may also be developed by a third party The application programs developed by the author, such as the Hijian program, the K song program, the magic mirror program, etc. During specific implementation, the application package in the application layer is not limited to the above examples, and may actually include other application packages, which is not limited in this embodiment of the present application.

The framework layer provides an application programming interface (API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions. The application framework layer is equivalent to a processing center, which decides to let the applications in the application layer take action. The application program can access the resources in the system and obtain the services of the system during execution through the API interface.

As shown in FIG. 4 , the application framework layer in the embodiment of the present application includes managers (Managers), content providers (Content Provider), etc., wherein the manager includes at least one of the following modules: an activity manager (Activity Manager) uses Interacts with all activities running in the system; Location Manager is used to provide system services or applications with access to system location services; Package Manager is used to retrieve files currently installed on the device Various information related to the application package; Notification Manager (Notification Manager) is used to control the display and clearing of notification messages; Window Manager (Window Manager) is used to manage icons, windows, toolbars, wallpapers on the user interface and desktop widgets.

In some embodiments, the activity manager is used to: manage the life cycle of each application and the usual navigation and fallback functions, such as controlling the exit of the application (including switching the user interface currently displayed in the display window to the system desktop), opening the , back (including switching the currently displayed user interface in the display window to the upper-level user interface of the currently displayed user interface), and the like.

In some embodiments, the window manager is used to manage all window programs, such as obtaining the size of the display screen, judging whether there is a status bar, locking the screen, capturing the screen, and controlling the change of the display window (such as reducing the display window, shaking the display, twisting the display) deformation display, etc.), etc.

In some embodiments, the system runtime layer provides support for the upper layer, that is, the framework layer. When the framework layer is used, the Android operating system will run the C/C++ library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is the layer between hardware and software. As shown in Figure 4, the kernel layer at least includes at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, touch sensors, pressure sensors, etc.), etc.

In some embodiments, the kernel layer further includes a power driver module for power management.

In some embodiments, software programs and/or modules corresponding to the software architecture in FIG. 4 are stored in the first memory or the second memory shown in FIG. 2 or FIG. 3 .

In some embodiments, taking the magic mirror application (photography application) as an example, when the remote control receiving device receives the input operation of the remote control, the corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the input operation into the original input event (including the value of the input operation, the timestamp of the input operation and other information). Raw input events are stored at the kernel layer. The application framework layer obtains the original input event from the kernel layer, identifies the control corresponding to the input event according to the current position of the focus, and regards the input operation as a confirmation operation, and the control corresponding to the confirmation operation is the control of the magic mirror application icon. The mirror application calls the interface of the application framework layer, starts the mirror application, and then starts the camera driver by calling the kernel layer to capture still images or videos through the camera.

In some embodiments, for a display device with a touch function, taking a split-screen operation as an example, the display device receives an input operation (such as a split-screen operation) performed by the user on the display screen, and the kernel layer can generate corresponding input operations according to the input operation. Enter an event and report the event to the application framework layer. The window mode (such as multi-window mode) and window position and size corresponding to the input operation are set by the activity manager of the application framework layer. The window management of the application framework layer draws the window according to the settings of the activity manager, and then sends the drawn window data to the display driver of the kernel layer, and the display driver displays the corresponding application interface in different display areas of the display screen.

In some embodiments, as shown in FIG. 5, the application layer contains at least one application that can display corresponding icon controls in the display, such as: live TV application icon control, video on demand application icon control, media center application Program icon controls, application center icon controls, game application icon controls, etc.

In some embodiments, the live TV application may provide live TV from different sources. For example, a live TV application may provide a TV signal using input from cable, over-the-air, satellite services, or other types of live TV services. And, the live TV application may display the video of the live TV signal on the display device 200 .

In some embodiments, a video-on-demand application may provide video from various storage sources. Unlike live TV applications, video-on-demand provides a display of video from certain storage sources. For example, video-on-demand can come from the server side of cloud storage, from local hard disk storage containing existing video programs.

In some embodiments, the media center application may provide various multimedia content playback applications. For example, a media center may provide services other than live TV or video-on-demand, where users can access various images or audio through a media center application.

In some embodiments, the application center may provide storage of various applications. An application can be a game, an application, or some other application that is related to a computer system or other device but can be run on a Smart TV. The application center can obtain these applications from various sources, store them in local storage, and then run them on the display device 200 .

first:

The above embodiments describe the hardware/software architecture and function implementation of the display device. In some application scenarios, the user can switch the channel through the channel switch button on the remote control. The channel switch button generally includes "+ button" and "- button". "+ button" can switch channels backward. The direction in which the channel number in the channel list increases; the "-key" realizes the forward (ie backward) switching of channels, and forward can refer to the direction in which the channel number in the channel list decreases. The user can tune the channel to the channel he wants to watch by operating the switching direction and the number of clicks of the channel switching key. The channel type of the channel can be a DTV channel or an OTT channel. Clicking the channel switch button generally realizes fast and continuous channel switching. In other embodiments, the user can also directly input the channel serial number to directly locate and switch to the desired channel. In this case, the channel switching may be discontinuous in serial numbers. .

Since OTT services are inseparable from the Internet, the OTT channel starts the browser application in the state of network connection, and realizes the playback of channel audio and video resources through the built-in player in the browser application. Therefore, the time-consuming to switch to the OTT channel generally includes audio and video resources. Time-consuming video resource loading + time-consuming browser application startup; DTV channels can be played only by connecting the display device to the set-top box, and there is no need to connect to the network and start the browser application. Therefore, the time-consuming switching to DTV channels is to load the channel audio and video. resource consumption. The channel type is not limited in this application, and the solution of the application for fast channel switching can also be applied to other types, and the specific signal source actually connected to the display device shall prevail.

Table 1

频道序号channel number	频道IDchannel id	频道名称channel name	频道类型channel type
001001	DTVChannel1DTVChannel1	CCTV-1CCTV-1	DTV频道DTV channel
002002	DTVChannel2DTVChannel2	CCTV-2CCTV-2	DTV频道DTV channel
003003	OTTChannel1OTTChannel1	BBC sportsBBC sports	OTT频道OTT channel
004004	DTVChannel3DTVChannel3	CCTV-3CCTV-3	DTV频道DTV channel
005005	OTTChannel2OTTChannel2	Leeds NewsLeeds News	OTT频道OTT channel
……	……	……	……

In some embodiments, Table 1 exemplarily shows a channel list, each row in the channel list represents channel information corresponding to a channel, and the channel information includes a channel number, a channel ID, a channel name, and a channel type. Among them, the channel number is used to mark the sorting position of a certain channel in the channel list, which is convenient for the positioning of the channel; the channel ID is used to identify and distinguish each channel, each channel has a unique ID value, and the IDs of any two channels are different ; The channel name indicates the actual real name of the channel; the channel type is used to mark whether the channel is DTV or OTT, which is equivalent to marking the signal source of the channel.

As can be seen from Table 1, DTV channels and OTT channels are uniformly recorded in the same channel list, and DTV channels and OTT channels can be mixed and sorted. Focus on watching a single type of channel. For example, the channel the user is currently watching is CCTV-2 with serial number 002. If the user presses the "+ button" of the channel switching key once, he needs to switch to BBC sports with serial number 003, that is, the channel type is switched from DTV channel to OTT. For example, if the user continuously clicks the "+ button" of the channel switching key again, the latest switching target is CCTV-3 with serial number 004. At this time, the channel type is switched from OTT channel to DTV channel. This kind of channel cross-ordering will be frequent The switching of the channel type appears.

The two-way switching between DTV channels and OTT channels is essentially a switching between physical sources and browser applications. Resource management is required for each switching, that is, a process of waiting for application resources to be released. When switching between different types of channels quickly, the switching speed is slow, and it takes a long time to wait for each switching request to be responded to, and it is impossible to quickly switch to the latest channel, which affects the user's viewing experience.

In this regard, in some embodiments, a corresponding channel switching request will be generated every time the user operates to switch a channel. When the user switches channels multiple times quickly, in order to facilitate accurate management of the channel switching request and its task process, several queues may be set, such as Switch request queues, pending request queues, and destination queues, etc. Wherein, the switching request queue records the channel information of the channel currently being switched; the pending request queue records the channel information of the currently to-be-switched channel, and the current to-be-switched channel is located by the channel switching operation currently input by the user Channel; the channel information of the channel that has been switched is recorded in the destination queue. The channel information recorded in the above-mentioned types of queues may include a channel ID. It should be noted that the setting form and function configuration of the multi-queue are not limited to those described in this embodiment. For example, the destination queue may not be set. When the switching task is completed, the corresponding channel information in the switching request queue may be deleted.

When the user switches channels quickly, that is, the current channel has not been switched, multiple channel switching requests are received in a short period of time. Since channel switching is a dynamic process, each queue will also change with each channel switching process. And dynamic update.

In some embodiments, taking the channel list shown in Table 1 as an example, as shown in FIG. 6 , when the controller 250 receives the switching request of DTVChannel1, it starts the switching task of DTVChannel1 and adds DTVChannel1 to the switching request queue ; After that, the switching request of DTVChannel2 is received. Since the switching of DTVChannel1 has not been completed at this time, DTVChannel2 is added to the pending request queue and waits for a response; the switching request of OTTChannel1 is continuously received in a short period of time, and DTVChannel1 is still switching at this time. , so OTTChannel1 is waiting, that is, OTTChannel1 needs to be added to the pending request queue, because the latest channel is no longer DTVChannel2, but OTTChannel1, that is, based on the user's switching operation in time, the request of DTVChannel2 It is equivalent to expired, so DTVChannel2 can be removed from the pending request queue. The purpose of this processing is that if DTVChannel1 is switched over, DTVChannel2 can be skipped, and then quickly respond and switch to OTTChannel1; after that, the switch of OTTChannel2 is received. At this time, the switching of DTVChannel1 has not ended, then remove OTTChannel1 from the pending request queue in the same way, and add OTTChannel2 to the pending request queue; when the switching task of DTVChannel1 ends, move DTVChannel1 from the switching request queue. To the end queue, and move OTTChannel2 from the pending request queue to the switching request queue, and start the switching task of OTTChannel2 at the same time, the controller needs to continue to monitor whether it receives the switching request of the next channel, and so on.

From the above process of dynamic update and adjustment of multiple queues, it can be seen that the pending request queue can actually store the channel ID corresponding to the switching request generated when the user switches channels quickly and multiple times, but in this application, the pending request queue only saves the current latest positioning. The channel to be switched (OTTChannel2), remove the expired channels (DTVChannel2 and OTTChannel1) between OTTChannel2 and the channel currently being switched (DTVChannel2 and OTTChannel1), and then switch directly to OTTChannel2 after the switching of DTVChannel1 is completed, thereby eliminating DTVChannel2 and OTTChannel1 The time-consuming switching between DTVChannel1 and OTTChannel2 is compressed, so that the display device can display the latest positioned channel more quickly and improve the user's viewing experience.

The multi-queue may be empty or non-empty. Empty means that the queue does not include any channel ID. When the queue includes at least one channel ID, the queue is not empty. When the switching request queue is empty, it means that there is no channel being switched. At this time, if the controller monitors the switching request of the channel, it can directly add the channel to the switching request queue and start the switching task; when the switching request queue When it is non-empty, that is, there is currently a channel being switched and processed, the subsequent channel needs to be added to the pending request queue.

When the queue of pending requests is empty, it includes two situations: one is that after the channel currently being switched, the controller 250 has not received a switching request from other channels, that is, the user is waiting to watch the channel currently being switched, Without switching other channels, in this case, if a channel switching request is received, it will directly transfer to the pending request queue and wait for the switching request queue to become empty; The channel to be switched. At this time, the pending request queue and the switching request queue are both empty.

The channel switching method provided in FIG. 7 can be configured and executed by the controller 250 in the display device, that is, the controller 250 is the execution subject of the method, and the method includes the following program steps:

Step S10, in response to the channel switching operation, determine whether the switching request queue is empty. If the handover request queue is not empty, execute step S20; otherwise, if the handover request queue is empty, execute step S60.

Step S20, it is determined whether the pending request queue is empty. If the to-be-processed request queue is not empty, step S30 is performed; otherwise, if the to-be-processed request queue is empty, step S50 is performed.

In step S30, all channel information in the pending request queue is removed, and the current channel information to be switched is stored in the pending request queue.

Step S30 is to add the current channel information to be switched (that is, the ID of the newly positioned channel to be switched) into the pending request queue, and at the same time delete all the previously expired channel information, so as to skip the expired channel and directly switch to the latest positioned channel. channel to improve the speed and efficiency of channel switching.

Step S40, when the switching request queue becomes empty, start executing the switching task of the channel in the pending request queue, and move the channel information in the pending request queue to the switching request queue.

In step S40, that is, when the switching of the channel currently being switched is completed, the channel information currently existing in the pending request queue is transferred to the switching request queue, and the switching task of the currently pending channel is started, so that it is in the next channel. The channel of the waiting bit changes to the channel in switching.

Step S50: Store the channel information to be switched currently in the pending request queue, and wait for the switching request queue to become empty. When the switching request queue is not empty and the pending request queue is empty, it is not necessary to clear the pending request queue, but directly store the received channel information to be switched in the pending request queue.

Step S60, directly start and execute the switching task of the channel to be switched currently, and store the information of the channel to be switched currently in the switching request queue. When the switching request queue is empty, if a channel switching request is received, the channel information corresponding to the channel switching request is directly stored in the switching request queue, and the corresponding switching task can be started directly in response to the channel switching request.

In order to make the switching process of each channel clearer and manage the channel information that has been switched in history, in some embodiments, a destination queue may be set, and the destination queue includes the channel information of the channel that has been switched, then after step S40, when the switching request is made After the execution of the switching task of the channels in the queue is completed, the channel information in the switching request queue is moved to the destination queue, so as to ensure that the switching process of the corresponding channel has reached the end point and the switching task has been completed.

In some embodiments, based on the channel switching operation input by the user, the channel corresponding to the channel switching operation and its channel information can be located in the channel list as shown in Table 1, and the method further includes: in response to receiving In the channel switching operation, locate the current channel to be switched corresponding to the channel switching operation in the channel list, and obtain the current channel information to be switched; wherein the channel information includes channel type and channel ID.

In some embodiments, a flag bit for identifying the channel type may be set in the channel ID. Taking the channel ID as DTVChannel1 as an example, the flag bit reserved in the header of the channel ID identifies the DTV, indicating that it belongs to a DTV channel. In this manner, the channel type can be automatically identified when the channel ID is identified. In this implementation manner, the channel information stored in the multiple queues may include the channel ID. If the channel ID does not carry the channel type information, the channel information stored in the multiple queues may include the channel ID and the channel type.

In some embodiments, when the switching request queue is not empty, it means that there is currently a channel being switched. If a new channel switching request is received, the switching task of the channel corresponding to the channel switching request cannot be started immediately. To transfer the channel switching request to pending processing, it is necessary to first determine the channel type of the channel to be transferred. If the channel type of the channel to be switched currently is a DTV channel, the first path can be created. The first path is The DTV channel path is equivalent to establishing a DTV TV flow (TV flow) to receive audio and video resources of a certain DTV channel from the TV flow of the first path when the switching task is performed subsequently; if the channel type of the channel to be switched is currently If it is an OTT channel, the second path is established. The second path is the OTT channel path, which is equivalent to establishing an OTT flow of the OTT channel, which is used to receive OTT from the OTT flow of the second path during subsequent switching tasks. The audio and video resources of the channel. Before starting the switching task, each channel needs to establish its own channel path, so as to facilitate the subsequent reception of audio and video streams through the path, which is equivalent to making preparations before switching in the pending stage. When starting the switching task, from The corresponding path receives audio and video resources, and then loads the audio and video resources into the UI to play.

In some embodiments, a TV service (TV Service) application and a browser (browser) application are generally preset in the controller 250 . When switching to a DTV channel, the controller 250 sends a channel switching request to the TV service application, and the TV service application receives the audio and video resources of the DTV channel from the first path, and then loads the audio and video resources to the user interface UI, and the loading is successful After the channel switching completion indication information is fed back, the switching task ends.

In some embodiments, when switching to an OTT channel, the controller 250 sends a channel switching request to the TV service application, and the TV service application receives the audio and video resources of the OTT channel from the second path, and the audio and video resources of the OTT channel may be URL (Uniform Resource Locator, Uniform Resource Locator), URL is the network address of audio and video resources, and then start the browser application, the browser application built-in player loads the audio and video resource URL, so as to play on the display user interface The audio and video resources of the OTT channel and the status information of the browser application being opened are fed back, and the switching task ends.

When the switching task of the channel ends, that is, when the switching request queue is transformed into an empty queue, it is determined whether the pending request queue is empty. If the pending request queue is empty, the controller 250 does not continue to perform other switching tasks, and the controller continues Monitor the channel processing request until the new incoming channel processing request is monitored, and then the channel switching task corresponding to the new request can be directly processed; if the pending request queue is not empty, indicating that there is a channel waiting to be switched, the pending request will be started. The switching task of the channel corresponding to the channel information currently existing in the queue.

It can be seen from the above technical solutions that when a user switches channels quickly and multiple times, in order to facilitate accurate management of the task flow of channel switching, a switching request queue, a pending request queue and a destination queue are set, and the switching process and status of each channel can be adjusted according to the switching process and status of each channel. , dynamically update and adjust the channel information in each queue. When the user enters a channel switching operation, it is first necessary to judge whether the switching request queue is empty. If the switching request queue is not empty, it means that there is a task in the process of channel switching, and then it is further judged whether the pending request queue is empty. If the user has quickly switched multiple channels before, there will be channel information (that is, not empty) in the pending request queue. For this purpose, this application chooses to remove all channel information in the pending request queue, that is, clear the pending request queue. request queue, and store the latest currently positioned channel information in the pending request queue. The purpose of this setting is to skip the channel between the channel currently being switched and the channel currently When the channel switching is completed, it directly switches to the latest channel to be switched, thereby avoiding a lot of time-consuming caused by switching other channels one by one.

When the switching request queue becomes empty, indicating that there is no channel being switched at present, the channel information in the pending request queue is moved to the switching request queue, and the switching task of the latest pending channel is started. It can be seen from the above discussion that the present application can make the pending request queue retain only the latest channel information to be switched, skip the previously backlogged channel switching requests, and compress the time-consuming switching between channels when the user switches channels quickly, so as to quickly Switching to the latest channel improves channel switching efficiency and significantly improves user viewing experience.

Second aspect:

Embodiments of the present application provide a playback control method and a display device, which are used to control playback of an external device connected to an HDMI channel when switching between a certain HDMI channel and other signal source channels.

Comprising: a display; a controller coupled to the display for performing:

When switching from the first high-definition multimedia interface HDMI channel to the target channel, a first key control instruction is sent to the external device connected to the first HDMI channel, and the first key control instruction carries a first value used to instruct the external device to pause playback, To make the external device pause playback; the target channel includes a second HDMI channel different from the first HDMI channel, or a non-HDMI channel;

When restoring from the target channel to the first HDMI channel, a second key control command is sent to the external device connected to the first HDMI channel, and the second key control command carries the second value used to instruct the external device to start playback, so that all The external device described above starts playback.

The embodiment of the present application also provides a playback control method, which is applied to a display device, including:

When switching from the HDMI channel of the first high-definition multimedia interface to the target channel, send a first key control instruction to the external device accessing the first HDMI channel, and the first key control instruction carries the first key control instruction used to instruct the external device to pause playback value to make the external device pause playback; the target channel includes a second HDMI channel different from the first HDMI channel, or a non-HDMI channel;

When restoring from the target channel to the first HDMI channel, send a second key control command to the external device connected to the first HDMI channel, and the second key control command carries the second value used to instruct the external device to start playing, so that the external device can start playing. The device starts playback.

In some embodiments, when the display device switches between multiple signal source channels, after switching from a certain HDMI channel to another signal source channel, the external device connected to the HDMI channel still continues to play, the The situation may cause the playback content of the display device after switching from other signal source channels back to the HDMI channel to be discontinuous with the playback content before switching from the HDMI channel to other signal source channels, and may also lead to an increase in the number of external devices connected to the HDMI channel. Loss of equipment, increased power consumption of the external equipment, etc.

To understand the above situation, here is a simple example:

Taking the current signal source channel of the display device as the first HDMI channel, and the external device accessing the first HDMI channel as a digital video disc (Digital Video Disc, DVD) player as an example, the current playback content of the display device is the DVD The player's currently playing content.

When the DVD player is currently playing Movie A and the 20th minute of Movie A is played, if the display device switches from the first HDMI channel to the TV channel, the display device switches to play the content transmitted by the TV channel, and the DVD player Movie A continues to play.

If the display device returns from the TV channel to the first HDMI channel 10 minutes after switching to the TV channel, the display device switches to playing the currently playing content of the DVD player. At this time, the DVD device has played to the 30th minute of movie A, and the content played by the display device is also the content of the 30th minute of movie A. This playback content is the same as before the display device switches from the first HDMI channel to the TV channel. The playback content is discontinuous.

In view of the above problems, an embodiment of the present application provides a playback control method, which can be applied to a display device such as a smart TV, so that when the display device switches between a certain HDMI channel and other signal source channels, it controls access to the HDMI channel playback of external devices.

In one example, the playback control method may include: when switching from the first HDMI channel to the target channel, controlling the external device connected to the first HDMI channel to pause playback.

The above-mentioned first HDMI channel may be any HDMI channel in the display device. As an embodiment, if the current signal source channel is an HDMI channel, the HDMI channel can be used as the first HDMI channel, and the playback control method provided by this application is applied.

The above-mentioned target channel may be any signal source channel other than the first HDMI channel. As an embodiment, the target channel may be a non-HDMI channel, such as a TV channel. As an embodiment, the target channel may be another HDMI channel other than the first HDMI channel. For example, if there are three HDMI channels in the display device: HDMI1, HDMI2 and HDMI3, when switching from the current HDMI1 to HDMI2, HDMI1 can be used as the first HDMI channel and HDMI2 can be used as the target channel.

In one embodiment, the playback control method may further include: when restoring from the target channel to the first HDMI channel, controlling an external device connected to the first HDMI channel to start playback.

In order to make it easier for those skilled in the art to understand the playback control method provided by the embodiments of the present application, the playback control method is described below with an example in conjunction with the flow shown in FIG. 8 :

Referring to FIG. 8, FIG. 8 exemplarily shows a flowchart of a playback control method provided by an embodiment of the present application. As shown in Figure 8, the process may include the following steps:

Step S41, when switching from the first HDMI channel to the target channel, send a first key control instruction to the external device accessing the first HDMI channel, and the first key control instruction carries the first key for instructing the external device to pause playback. value to make the external device connected to the first HDMI channel pause playback.

This step S41 is to switch from the first HDMI channel to the target channel, so it is easy to understand that, before performing this step S41, the current channel of the display device is the first HDMI channel. Before switching from the first HDMI channel to the target channel, the display device can play the playback content transmitted through the first HDMI channel, that is, play the playback content provided by the external device connected to the first HDMI channel; After the channel is switched to the target channel, the display device can play the playback content transmitted through the target channel.

In one example, the display device may switch from the first HDMI channel to the target channel when receiving the first switching instruction input from the external. The first switching instruction here is used to instruct switching from the first HDMI channel to the target channel.

As an embodiment, the first switching instruction can be input by a user operating the control device. For example, the display device may display at least one signal source channel in response to a key input command corresponding to an "INPUT" key on the control device, and switch to the target channel in response to a selection command of the target channel input through the control device. the target channel. Specifically, if the selection command input through the control device is directed to the current first HDMI channel, the switching operation may not be performed; the selection command input through the control device is directed to signal source channels other than the current first HDMI channel When the signal source channel is used as the target channel, switch to the target channel is executed.

In another example, the first switching instruction can be automatically issued by the display device when a preset condition is satisfied. As an embodiment, the preset condition here may include reaching a preset time and the like.

In one example, both the display device and the external device connected to the first HDMI channel are enabled with a configured Consumer Electronics Control (CEC) function. The CEC function allows the user to use one control device to control multiple devices supporting the CEC function on the same CEC bus, where the multiple devices supporting the CEC function may include: a display device and at least one external device connected to the display device through an HDMI interface .

As an embodiment, the first key control instruction sent to the external device in this step S41 may be the User Control Pressed instruction and the User Control Released instruction in the CEC function, and these two instructions both carry the first value Pause (pause playback ) to instruct the external device to pause playback. Specifically, the two commands both carry the key parameter key, and the key parameter key is the first value of Pause. It should be noted that the first value here is named for the convenience of distinguishing it from the second value in the following, and has nothing to do with the actual value.

In the existing Remote Control Pass Through function of the CEC function, the User Control Pressed command and the User Control Released command are mainly used to transmit the user's key operation on the control device, and the key parameters ( key) to pass different key operations. Among them, the User Control Pressed command is mainly used to transmit the user's pressing operation on the keys on the control device, and the User Control Released command is mainly used to transmit the user's release operation of the keys on the control device. These two commands are usually used in pairs; common control The buttons on the device include: fast forward, fast backward, start playback (Play), pause playback (Pause), previous channel, next channel, stop, exit, up, down, left, right, confirm and so on. In this embodiment, by sending the User Control Pressed command and User Control Released command with the value of the key parameter key carried as Pause to the external device, the user's pressing and releasing operations on the Pause key on the control device are simulated, so that the external device pauses playback .

Step S42, when restoring from the target channel to the first HDMI channel, send a second key control command to the external device accessing the first HDMI channel, the second key control command carrying the second key for instructing the external device to start playing. value, so that the external device connected to the first HDMI channel starts playback.

In this step S42, the target channel is restored to the first HDMI channel, so it is easy to understand that when this step S42 is executed, the current channel of the display device is the target channel.

In one example, the display device may switch from the target channel to the first HDMI channel when receiving the second switching instruction input from the external. The second switching instruction here is used to instruct switching from the target channel to the first HDMI channel.

As an embodiment, similar to the first switching instruction described above, the second switching instruction can also be input by the user operating the control device. As another embodiment, the display device may automatically issue a second switching instruction to restore from the target channel to the first HDMI channel when the preset condition is satisfied.

As an embodiment, the second key input command sent to the external device in this step S42 may be the User Control Pressed command and the User Control Released command, and both of these two commands carry the second value Play (start playing), which is used for Instructs the external device to start playback. Specifically, the User Control Pressed instruction and the User Control Released instruction can both carry the key parameter key, and the key parameter key is the second value of Play. In this embodiment, the User Control Pressed command and the User Control Released command with the value of the key parameter key carried by the external device are sent to the external device to simulate the user's pressing and releasing operations on the Play key on the control device, so that the external device starts playing .

As an example, when the target channel is the second HDMI channel, when restoring from the second HDMI channel to the first HDMI channel, similar to switching from the first HDMI channel to the target channel, sending a message to the second HDMI channel The first button controls the instruction to make the external device connected to the second HDMI channel pause the playback.

So far, the process shown in FIG. 8 is completed.

Through the process shown in FIG. 8, the display device can control the external device connected to the first HDMI channel to pause playback when switching from the first HDMI channel to the target channel, and can control the external device connected to the first HDMI channel to pause playback when switching from the target channel to the first HDMI channel. An external device connected to the first HDMI channel starts playback.

In one embodiment, in the above step S42, when restoring from the target channel to the first HDMI channel, the second key control instruction may not be sent to the external device connected to the first HDMI channel, so that the external device responds to the external input The instruction to start playback starts playback.

In one embodiment, in the case of not switching from the first HDMI channel to the target channel before, when switching from the target channel to the first HDMI channel, the second HDMI channel may be sent to the external device connected to the first HDMI channel. Button control command to control the external device to start playing.

In some embodiments, the process of switching from the first HDMI channel to the target channel in the above step S41 may include multiple steps. Taking the target channel as the TV channel as an example, the process of switching from the first HDMI channel to the TV channel and when to send the first key control command to the external device accessing the first HDMI channel in this process are carried out with reference to FIG. 9 . describe.

Referring to FIG. 9 , FIG. 9 exemplarily shows an implementation flowchart of step S41 provided by this embodiment of the present application. As shown in Figure 9, the process may include the following steps:

Step S51, releasing the resources occupied by the first HDMI channel.

As an embodiment, releasing the resources occupied by the first HDMI channel may include: releasing the connection between the terminal occupied by the first HDMI channel and the player corresponding to the terminal, and releasing the connection of the first HDMI channel to the terminal occupied.

Specifically, when releasing the connection between the terminal occupied by the first HDMI channel and the player, if the terminal occupied by the first HDMI channel is a window terminal, the video decoder corresponding to the window terminal can be stopped, If the terminal occupied by the first HDMI channel is an audio terminal (audio terminal), the audio decoder corresponding to the audio terminal can be stopped. The above-mentioned audio terminal may be an earphone, a speaker, etc., and the window terminal may be a display or the like.

Specifically, when the terminal occupied by the first HDMI channel is released, the path established between the HDMI channel and the terminal can be destroyed. If the terminal occupied by the first HDMI channel is a window terminal, the video corresponding to the window terminal can be closed. Decoder, if the terminal occupied by the first HDMI channel is an audio terminal, the audio decoder corresponding to the audio terminal can be turned off.

Step S52: Send a first key control instruction to the external device connected to the first HDMI channel, where the first key control instruction carries a first value used to instruct the external device to pause playback.

For the specific implementation of this step S52, reference may be made to the embodiments described above, and the example description will not be repeated here.

Step S53: Allocate required resources for the TV channel.

As an embodiment, in this step S53, a path may be established between the TV channel and a terminal required by the TV channel, so that the TV channel occupies the terminal. As an embodiment, after the path between the TV channel and the required terminal is established, a connection between the terminal required for the TV channel and the player corresponding to the terminal can be established, and the player corresponding to the terminal can be started. For example, when the terminal occupied by the TV channel is a window terminal, the video decoder corresponding to the window terminal is activated, and when the terminal occupied by the TV channel is an audio terminal, the audio decoder corresponding to the audio terminal is activated.

So far, the process shown in FIG. 9 is completed. The process shown in FIG. 9 can be executed when switching from the first HDMI channel to the target channel is required, for example, when an instruction inputted by a user to instruct to switch to the target channel is received.

In some embodiments, the process of switching from the target channel to the first HDMI channel in the above step S42 includes multiple steps. The following takes the target channel as the TV channel as an example, combined with the process shown in FIG. 10, the process of switching from the TV channel to the first HDMI channel, and when to send the second HDMI channel to the external device connected to the first HDMI channel in the process. Button control commands are described.

Referring to FIG. 10 , FIG. 10 exemplarily shows a flowchart of the implementation of step S42 provided in this embodiment of the present application. As shown in Figure 10, the process may include the following steps:

Step S61, release the resources occupied by the TV channel.

The specific implementation of this step S61 is similar to the above-mentioned step S51. For details, reference may be made to the above-mentioned step S51, and the description will not be repeated here.

Step S62: Allocate required resources for the first HDMI channel.

The specific implementation of this step S62 is similar to the above-mentioned step S53. For details, reference may be made to the above-mentioned step S52, and the description will not be repeated here.

Step S63: Send a second key control instruction to the external device connected to the first HDMI channel, where the second key control instruction carries a second value used to instruct the external device to start playing.

So far, the description of the flow shown in FIG. 10 is completed. The process shown in FIG. 10 can be executed when switching from the target channel to the first HDMI channel is required.

In one embodiment, the processes shown in FIG. 9 and FIG. 10 may be completed by one or more modules in the display device.

It should be noted that the processes shown in FIG. 9 and FIG. 10 are only examples, and are not used to specifically limit the present application. In practical application, there may be other processes of switching from the first HDMI channel to the target channel and from the target channel to the first HDMI channel, which will not be described in detail here.

As described in the above embodiment, the display device can control the external device connected to the first HDMI channel to pause playback when switching from the first HDMI channel to the target channel, and can also control the external device connected to the first HDMI channel to pause playback when switching from the target channel to the first HDMI channel. An external device connected to the first HDMI channel starts playback. In this way, it can be avoided that when switching from the first HDMI channel to the target channel, the external device connected to the first HDMI channel continues to play, resulting in the playback content after restoring from the target channel to the first HDMI channel and the playback content from the first HDMI channel. The playback content is discontinuous before the channel is switched to the target channel.

The third aspect:

An embodiment of the present application provides a display device, including: a display; at least one HDMI port for connecting to an external device that provides multimedia content, wherein the external device is in a standby state;

The power management module is used to control the display device to be turned off or turned on;

Controller, which executes:

Receive the power-on wake-up command sent by the connected external device when the display device is in the off state, and determine the source of the power-on wake-up command in the process of switching the display device from the power-off state to the power-on state according to the power-on wake-up command. The target external device, according to the port parameters of the target external device connected to the target HDMI port of the display device, configure the power-on wake-up reason for the display device to enter the power-on state from the off state, so that after the display device enters the power-on state, according to the configured The said power-on wake-up cause switches the playback channel of the display device to the target HDMI channel corresponding to the target HDMI port.

An embodiment of the present application provides a display device, including: a display; at least one HDMI port for connecting an external device, wherein the external device is a device for providing multimedia services; and a controller. In the embodiment of the present application, the controller is configured to execute: when the display device is in a power-off state, receive a power-on wake-up command sent by a connected external device, and switch the display device from the power-off state to the power-on state according to the power-on wake-up command Determine the target external device that sends the power-on wake-up command during the state of the display device, and configure the power-on wake-up reason for the display device to enter the power-on state from the off state according to the port parameters of the target external device connected to the target HDMI port of the display device, so that the display device can be turned on. After entering the power-on state, switch the playback channel of the display device to the target HDMI channel corresponding to the target HDMI port according to the configured wake-up reason.

The embodiment of the present application also provides a channel switching method, which is applied to a display device, and the method includes:

Receive the power-on wake-up command sent by the connected external device when the display device is in the off state, and determine the source of the power-on wake-up command in the process of switching the display device from the power-off state to the power-on state according to the power-on wake-up command. The target external device, according to the port parameters of the target external device connecting to the target HDMI port of the display device, configure the wake-up reason for the display device to enter the power-on state from the off state, so that the display device enters the power-on state. The reason for power-on wake-up is to switch the playback channel of the display device to the target HDMI channel corresponding to the target HDMI port.

The embodiments of the present application also provide an operation method. Please refer to FIG. 11 , which is a schematic flowchart of a channel switching method provided by an embodiment of the present application.

As shown in Figure 11, the process may include the following steps:

Step 101: Receive the power-on wake-up command sent by the connected external device when the display device is in the off state, and determine the target of sending the power-on wake-up command in the process of switching the display device from the power-off state to the power-on state according to the power-on wake-up command external device.

In one example, the external device may be in a standby state, and in response to a power-on command for instructing the external device to enter a power-on state from a standby state, the external device sends the power-on wake-up command described in step 101 to the display device. In another example, the external device may be in a power-off state, in response to a power-on command for instructing the external device to enter a power-on state from a power-off state, and then send the power-on wake-up command described in step 101 to the display device.

Normally, when an external device sends a power-on wake-up command, the power-on wake-up command does not carry relevant information that can be used to identify the external device and the target HDMI port to which the external device is connected. Therefore, after receiving the power-on wake-up command sent by the external device, the display device can neither determine the target external device to send the power-on wake-up command according to the power-on wake-up command, nor determine whether the target external device is in the local display device according to the power-on wake-up command. Displays the target HDMI port plugged into the device. As for how to determine the port parameters of the target external device and the target HDMI port in this step 101, it will be described below in conjunction with Figure 12 and Figure 13, and will not be repeated here.

In this embodiment of the present application, the HDMI port parameter can be used to identify the HDMI channel, such as the port identification of the HDMI port.

Step 102: Configure the reason for the display device to wake up from the power-off state to the power-on state according to the port parameters of the target HDMI port of the target external device connected to the display device, so that the display device enters the power-on state and wakes up according to the configured power-on state. Cause Switch the playback channel of this display device to the target HDMI channel corresponding to the target HDMI port.

In this embodiment of the present application, the reason for wake-up at power-on may include port parameters. Based on this, in this step 102, the wake-up reason may be configured based on the port parameters, for example, the port parameters determined in the above step 101 may be written into the wake-up reason. Wherein, when the port parameter of the reason for power-on wake-up is the port parameter of the first HDMI port, it means that the display device is turned off from the power-off state by the power-on wake-up command sent by the external device received via the first HDMI port. Enter the power-on state, indicating that the display device needs to switch the playback channel to the first HDMI channel corresponding to the aforementioned first HDMI port after the display device is turned on, so as to play the multimedia content provided by the external device through the first HDMI channel; When the parameter is the port parameter of the second HDMI port, it means that the display device is turned on by the power-on wake-up command sent by the external device received through the second HDMI port to make the display device enter the power-on state from the off state, indicating that the display device is in the power-on state. After booting, the playback channel needs to be switched to the second HDMI channel corresponding to the aforementioned second HDMI port, so as to play the multimedia content provided by the external device through the second HDMI channel.

After completing the configuration of the power-on wake-up reason, the power-on wake-up reason can be sent to the TV Service. The TV Service will parse out the port parameters configured in the wake-up cause, and generate a playback channel switching instruction based on the port parameters. The playback channel switching instruction is used to instruct the playback channel control module to switch the playback channel to the HDMI corresponding to the target HDMI port. aisle. Afterwards, when the TV Service detects that the display device has entered the power-on state, it will immediately send the playback channel switching instruction to the playback channel control module, and the playback channel control module will switch the playback channel to the target in response to the playback channel switching instruction. The target HDMI channel corresponding to the HDMI port.

When the display device enters the power-on state from the power-off state, it will directly switch the playback channel to the target HDMI channel corresponding to the target HDMI port according to the port parameters in the above-configured power-on wake-up reason.

So far, the process shown in FIG. 11 is completed.

It can be seen from the above technical solutions that in the present application, when the display device receives a power-on wake-up command sent by an external device, it no longer only controls the display device to enter the power-on state from a power-off state, but additionally acquires and sends the power-on wake-up command. The port parameter of the target HDMI port that the external device is connected to, and the wake-up reason is generated according to the port parameter, and then when the display device enters the power-on state, the playback channel can be switched to the external device directly according to the wake-up reason. The HDMI channel corresponding to the HDMI port does not need to wait for the channel switching command sent by the external device before switching, nor will the playback channel be switched to the default channel or the channel used before shutdown, which fundamentally avoids TV playback. Problems such as splash screen and black screen appear due to channel switching.

The following describes how to determine the target external device that sends the power-on wake-up command in the above step 101 .

Referring to FIG. 12 , FIG. 12 is a flowchart for realizing step 101 provided in this embodiment of the present application. As shown in Figure 12, the process may include the following steps:

Step 201: Send a probe message to each preset logical address.

Before performing this step 201, several logical addresses may be set locally in the display device in advance, and the logical addresses are used to allocate the external device when the external device accesses the display device, so as to distinguish and communicate with different external devices.

In this embodiment of the present application, when allocating a logical address to an external device, it may be allocated according to the device type of the external device. For example, when the external device is a DVD device, the logical addresses corresponding to the DVD device may be 4, 8, and 11. Then, when assigning a logical address to the DVD device, one of the above 4, 8, and 11 may be selected for assignment. It should be noted here that if the display device is connected to multiple external devices of the same type, the logical addresses of these external devices of the same type are different. For example, if two DVD devices are connected to the display device, if the logical address of the DVD terminal can only be set to 4, 8, and 11 in advance, then the logical address of one DVD terminal is 4, and the logical address of the other DVD terminal can only be 8 or 11. Of course, the logical addresses of other types of terminals will not be duplicated with the logical addresses of DVDs, thus ensuring that the logical addresses of each external device are unique.

As an example, a probe message may be sent to each preset logical address through a device polling thread.

In this embodiment of the present application, after the display device receives the wake-up power-on instruction, the display device first starts a device polling thread. The device polling thread is used for polling and sending a probe message to each preset logical address, so as to detect whether the logical address corresponds to an external device. Since the number of pre-configured logical addresses of the display device is fixed, the logical address of each external device connected to the display device must be one of the above-mentioned pre-configured logical addresses. The logical address sends the probe message, which can send the probe message to each external device connected to the display device.

Step 202, when a response message in response to any probe message is received, obtain the target logical address from the specified response message, where the target logical address is used to identify the target external device that sends the power-on wake-up command.

In this embodiment of the present application, the detection message is used to detect whether the external device that has received the message has sent a wake-up power-on instruction within a specified period of time.

In this embodiment of the present application, if the external device that receives the probe message does not send a wake-up power-on command within a specified period of time, the external device will send an unspecified response message in response to the probe message. In one example, the unspecified response message may carry a HUI_CEC_RF string, which is used to identify the message as an unspecified response message.

In this embodiment of the present application, if the external device that receives the probe message sends a wake-up power-on command within a specified period of time, the external device will send a specified response message in response to the probe message. In an example, the specified response message may carry a HUI_CEC_TX_SUCCESS string, which is used to identify that the message is an unspecified response message.

After receiving the response message, if the response message carries a character string used to identify the response message as a designated response message, such as HUI_CEC_TX_SUCCESS, it can be determined that the response message is a designated response message. After that, the logical address of the sender carried in the received designated response message may be determined as the target logical address, that is, the logical address of the target external device that sends the wake-up power-on command. Since the logical address can be used to uniquely identify an external device, after determining the target logical address of the target device, it is equivalent to determining the target device.

The above describes how to determine the target external device that sends the power-on wake-up command in the above step 101 .

The following describes how to obtain the port parameters of the target HDMI port to which the target external device is connected to the display device in the above step 101 .

Referring to FIG. 13 , FIG. 13 is a flowchart for realizing step 101 provided in this embodiment of the present application. As shown in Figure 13, the process may include the following steps:

Step 301: Determine the target physical address of the HDMI channel corresponding to the target HDMI port according to the target logical address.

As an example, in this step 301, there are multiple implementations for determining the target physical address of the HDMI channel corresponding to the target HDMI port according to the target logical address. One of the implementations will be described below with reference to the process shown in FIG. 14 , and details will not be described here.

In this embodiment of the present application, the physical address can uniquely identify an HDMI channel, and an HDMI channel is fixedly corresponding to a physical address. For example, the display device has 3 HDMI channels. The physical address of the first HDMI channel is 0x1000, the physical address of the second HDMI channel is 0x2000, and the physical address of the third HDMI channel is 0x3000. The physical addresses of the three are fixed and unique. .

Step 302: Obtain port parameters of the target HDMI port according to the target physical address.

In the embodiment of the present application, the corresponding relationship between the physical address of the HDMI channel and the port parameter of the HDMI port corresponding to the HDMI channel is pre-stored in the display device. Based on this, the port parameter corresponding to the target physical address can be found from the above correspondence, and the found port parameter is determined as the port parameter of the target HDMI port.

The above describes how to obtain the port parameters of the target HDMI port to which the target external device is connected to the display device in the above step 101 .

The following describes how to determine the target physical address of the HDMI channel corresponding to the target HDMI port according to the target logical address in the above step 301 .

Referring to FIG. 14 , FIG. 14 is a flowchart for realizing step 301 provided in this embodiment of the present application. As shown in Figure 14, the process may include the following steps:

Step 401 , check whether the target logical address is the logical address pre-allocated by the display device; if so, go to step 402 ; if not, go to step 403 .

As mentioned above, when an external device is connected to the display device, the display device will assign a logical address to the external device. When the display device allocates a logical address to an external device, it will set the allocation status of the logical address to allocated, otherwise, it will set the allocation status of the logical address to unallocated by default.

However, if the display device is in a standby state or a shutdown state when an external device is connected to the display device, since the display device cannot detect the access of the external device, it cannot assign a logical address to the external device. The logical address of the external device is still the logical address assigned to it by the connected display device. Based on this, although the target external device can receive the probe message and send the specified response message, the target logical address is in an unassigned state.

Step 402: Determine the physical address corresponding to the target logical address according to the locally stored logical address-physical address correspondence, and determine the physical address corresponding to the determined target logical address as the target physical address.

This step 402 is executed on the premise that the target logical address is a logical address pre-allocated by the display device.

In this embodiment of the present application, a logical address-physical address correspondence relationship is pre-stored in the display device. Among them, the physical address refers to the physical address of the HDMI channel in the display device, and the logical address corresponding to the physical address depends on whether the HDMI channel corresponding to the physical address is connected to an external device, and whether the display device is allocated to the external device. the logical address. For example, if the HDMI channel corresponding to the physical address is connected to an external device, and a logical address is allocated to the external device, the logical address corresponding to the physical address is the logical address allocated to the external device. For another example, if the HDMI channel corresponding to the physical address is not connected to an external device, or is connected to an external device but for some reason the external device is not assigned a logical address, the logical address corresponding to the physical address is the default. logical address. Here, the default logical address refers to other logical addresses other than the pre-set logical addresses allocated to external devices.

When it is determined that the target logical address is a pre-allocated logical address, it means that the physical address corresponding to the target logical address is recorded in the logical address-physical address correspondence, so it can be obtained from the logical address-physical address correspondence The target physical address corresponding to the target logical address is found. As an example, the target logical address may be used as a key, and a target correspondence including the key may be found in the logical address-physical address correspondence. After that, the physical address recorded in the target correspondence is determined as the target physical address corresponding to the target logical address.

Step 403: Send a physical address acquisition message to the target logical address.

This step 403 is executed on the premise that the target logical address is not the logical address pre-allocated by the display device.

As mentioned above, if the target logical address of the external device is not the allocated logical address, it means that the corresponding relationship between the logical address and the physical address stored in the display device does not exist the target logical address, and naturally it cannot be based on the target logical address. The target physical address is found from the logical address-physical address correspondence. Based on this, it is necessary to actively send a physical address acquisition message to the target external device, so as to acquire the physical address of the HDMI channel to which the target external device is connected.

Step 404: Receive a physical address response message sent by the target external device in response to the physical address acquisition message, where the physical address response message carries a physical address.

When the target external device receives the physical address acquisition message sent by the display device, it will respond to the message, carry the physical address of the HDMI channel it stores itself into the physical address response message, and send it to the display device. , so that the display device receives the physical address response message sent by the target external device.

It should be noted that, under normal circumstances, when an external device is connected to the HDMI channel of the display device, the level of the HPD signal of the connected HDMI interface will be pulled up, so that the external device detects a hot-plug event. . The external device will actively read the EDID data (including the physical address of the HDMI channel) of the HDMI channel to which it is connected based on the hot-plug event, and store it locally.

However, if the display device is in standby or off state, when some external devices are connected to the HDMI channel, the HPD signal will not change. Therefore, since the external device cannot detect the hot-plug event, it will not read The EDID data of the currently connected HDMI channel causes the physical address of the last connected HDMI channel to be stored in the external device. In other words, the physical address carried in the physical address response message received in step 404 is not necessarily the physical address of the HDMI channel to which the target external device is connected to the display device.

Step 405: If there is no address conflict between the physical address carried in the physical address reply message and the physical address corresponding to the locally allocated logical address, determine the physical address carried in the physical address reply message as the target physical address.

As mentioned above, the physical address carried in the physical address response message is not necessarily the physical address of the HDMI channel to which the target external device is connected to the display device. Based on this, it is necessary to detect whether there is an address conflict between the physical address carried in the physical address reply message and the physical address corresponding to the locally allocated logical address. There are multiple implementations for detecting whether there is an address conflict, as one of the implementations:

First, it can be detected whether the HDMI channel corresponding to the physical address carried in the physical address response message is connected to an external device. Determining whether an external device is connected to the HDMI channel may be implemented by using the prior art, which will not be repeated here.

If the HDMI channel is connected to an external device, the logical address corresponding to the physical address carried in the physical address response message (referred to as a reference logical address) can be found in the above-mentioned logical address-physical address correspondence.

Check whether the reference logical address is the default logical address. If the reference logical address is not the default logical address, it means that the HDMI channel corresponding to the physical address carried in the physical address response message has been connected to an external device, and the external device is not There is an address conflict between the target external device, that is, the physical address carried in the physical address reply message and the physical address corresponding to the locally allocated logical address.

If it is checked that the reference logical address is the default logical address, it means that the HDMI channel was not connected to an external device before, and combined with the current HDMI channel connected to an external device, it can be determined that the HDMI channel is currently connected to the external device. The external device is the target external device, then the physical address carried in the physical address response message is the correct physical address, and the HDMI channel corresponding to the physical address is the HDMI channel connected to the target external device, that is, the physical address response message. There is no address conflict between the physical address carried in the message and the physical address corresponding to the locally allocated logical address, and the physical address carried in the physical address reply message can be determined as the target physical address.

The above describes how to determine the target physical address of the HDMI channel corresponding to the target HDMI port according to the target logical address in the above step 301 .

Those skilled in the art can clearly understand that the technology in the embodiments of the present application can be implemented by means of software plus a necessary general hardware platform. In a specific implementation, the present application also provides a computer storage medium, wherein the computer storage medium may store a program, and when the computer storage medium is located in the display device, the program may include the channel switching configured by the aforementioned controller 250 when executed. All procedural steps involved in the method. The computer storage medium may be a magnetic disk, an optical disc, a read-only memory (English: read-only memory, ROM for short) or a random access memory (English: random access memory, RAM for short).

In this specification, the same and similar parts between the display device embodiment and the method embodiment may be referred to each other, and the related content will not be repeated.

Other embodiments of the present application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of this application that follow the general principles of this application and include common knowledge or conventional techniques in the technical field not disclosed in this application . The description and the examples are only regarded as exemplary, and do not constitute a limitation on the protection scope of the present application. The true scope and spirit of the application is indicated by the appended claims.

Claims

A display device, comprising:

A user interface for receiving user input operations;

The user interface is connected to a controller configured to perform:

In response to the switching channel operation, if the switching request queue is not empty, determine whether the pending request queue is empty;

If it is determined that the pending request queue is not empty, then all channel information in the pending request queue is removed, and the current channel information to be switched is stored in the pending request queue;

When the switching request queue becomes empty, start executing the switching task of the channel in the pending request queue, and move the channel information in the pending request queue to the switching request queue.
The display device of claim 1, wherein the controller is further configured to perform:

When the switching task of the channel in the switching request queue is completed, the channel information in the switching request queue is moved to the destination queue.
The display device of claim 1, wherein the controller is further configured to perform:

In response to the switching channel operation, if the switching request queue is empty, the switching task of executing the channel to be switched currently is directly started, and the information of the channel currently to be switched is stored in the switching request queue.
The display device of claim 1, wherein the controller is further configured to perform:

If it is determined that the pending request queue is empty, the channel information to be switched currently is stored in the pending request queue, and waits for the switching request queue to become empty.
The display device of claim 1, wherein the controller is further configured to perform:

In response to receiving the channel switching operation, locate the current channel to be switched corresponding to the channel switching operation in the channel list, and obtain the current channel information to be switched; wherein the channel information includes a channel type and a channel ID .
The display device of claim 5, wherein the controller is further configured to perform:

If the channel type of the channel to be switched currently is a digital TV channel, a first path is created for receiving audio and video resources of the digital TV channel to be switched currently.
The display device of claim 5, wherein the controller is further configured to perform:

If the channel type of the currently to-be-switched channel is an Internet TV channel, a second path is created for receiving audio and video resources of the currently to-be-switched Internet TV channel.
The display device according to claim 6, wherein the switching task is configured as:

If the channel type of the channel currently to be switched is a digital TV channel, the audio and video resources of the current digital TV channel to be switched are received from the first path, and the audio and video resources are loaded into the user interface for playback.
The display device according to claim 7, wherein the switching task is configured as:

If the channel type of the channel currently to be switched is an Internet TV channel, receive the audio and video resource URL of the currently to-be-switched Internet TV channel from the second path, start the browser application, and use the built-in player of the browser application to load URL of the audio and video resources, so as to play the audio and video resources on the user interface.
A display method, comprising:

In response to the switching channel operation, if the switching request queue is not empty, determine whether the pending request queue is empty;

If it is determined that the pending request queue is not empty, then all channel information in the pending request queue is removed, and the current channel information to be switched is stored in the pending request queue;

When the switching request queue becomes empty, start executing the switching task of the channel in the pending request queue, and move the channel information in the pending request queue to the switching request queue.