CN113852870A

CN113852870A - Channel list display method and display equipment

Info

Publication number: CN113852870A
Application number: CN202111112623.4A
Authority: CN
Inventors: 金程贵
Original assignee: Hisense Electronic Technology Shenzhen Co ltd
Current assignee: Hisense Electronic Technology Shenzhen Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-28
Anticipated expiration: 2041-09-23
Also published as: CN113852870B

Abstract

The invention discloses a channel list display method and display equipment, wherein channel information and a program preview image of each channel are acquired according to received code stream data, and the program preview image is used for displaying program information currently broadcast by the channel; when an operation instruction to display a channel list is received, channel information and a program preview image for each channel are displayed in a channel list interface. In the scheme provided by the invention, the channel list interface not only displays the channel information of each channel, but also displays the program preview image customized for each channel by a broadcast television operator in advance, and a user can quickly acquire the relevant information of the program broadcast by each channel by checking the program preview image, so that the interested channel is quickly positioned, and the operation efficiency of the user is improved.

Description

Channel list display method and display equipment

Technical Field

The present invention relates to the field of display devices, and in particular, to a method and a device for displaying a channel list.

Background

Some display devices are configured with a channel list function, after a user calls a channel list, the channel number and the channel name of each channel which is watched by the user supported by the broadcast television can be displayed in the channel list, so that the full-channel display of the TV is realized, the user can select a target channel to be watched from the channel list by browsing the channel list, and the user can tune to the target channel to watch the television program. However, in practical applications, after a user switches into a target channel, the user often encounters a situation that the user is not interested in a television program currently played by the target channel, the user has to switch channels one by one, and the user can finally determine a channel according with the preference of the user by watching a segment of each channel for a certain duration to learn the specific content played by the current program of each channel, which results in long time consumption and low efficiency for the user to locate the interested channel.

Disclosure of Invention

To solve the above problems in the background art, the present invention provides a method and a device for displaying a channel list.

A first aspect provides a display device comprising:

a display for displaying a channel list interface;

a controller configured to perform:

acquiring channel information and a program preview image of each channel according to received code stream data, wherein the program preview image is used for displaying program information currently broadcast by the channel;

and when an operation instruction for displaying the channel list is received, controlling the display to display the channel information and the program preview image of each channel in the channel list interface.

In a first exemplary implementation manner of the first aspect, the controller is configured to acquire the channel information and the program preview image of each channel as follows:

analyzing a service fragment from the code stream data, wherein channel information of all channels, program identifiers and image resource addresses corresponding to the program identifiers are recorded in the service fragment;

and downloading and storing the program preview images of all the channels according to the image resource addresses of all the channels.

In a second exemplary implementation manner of the first aspect, after storing the program preview images of all channels, the controller is configured to perform:

constructing a mapping relation table, wherein the mapping relation table records the mutual mapping relation among the channel information, the program identification and the image resource address of each channel;

and updating the mapping relation table when detecting that the channel program is changed according to the code stream data transmitted in real time and the mapping relation table.

In a third exemplary implementation manner of the first aspect, the controller is configured to update the mapping relation table as follows:

detecting whether a first target channel exists in the mapping relation table or not according to a service fragment analyzed from code stream data transmitted in real time and the mapping relation table, wherein the first target channel is a channel with a program identifier and an image resource address changed;

if the first target channel is detected to exist in the mapping relation table, downloading and storing a new program preview image of the first target channel by using the updated image resource address of the first target channel, and deleting an old program preview image of the first target channel;

and updating the image resource address, the program identification and the program preview image in the mutual mapping relation of the first target channel.

In a fourth exemplary implementation manner of the first aspect, the controller is configured to update the mapping relation table as follows:

detecting whether a second target channel exists in the mapping relation table or not according to the service fragment analyzed from the code stream data transmitted in real time and the mapping relation table, wherein the second target channel is a channel with a changed program identifier but an unchanged image resource address;

if the mapping relation table is detected to have a second target channel, downloading and storing a new program preview image of the second target channel by using the current image resource address of the second target channel, and deleting an old program preview image of the second target channel;

and updating the program identification and the program preview image in the mutual mapping relation of the second target channel.

In a fifth exemplary implementation manner of the first aspect, the controller is configured to display the channel information and the program preview image for each channel as follows:

generating and arranging N channel program preview controls in a channel list interface according to a preset arrangement; wherein N represents the number of channel program preview controls which can be accommodated by the preset layout;

firstly, program preview images of the first N channels are loaded and sorted from a memory, the first N program preview images are zoomed and then are sequentially displayed in N channel program preview controls, and simultaneously, each channel program preview control also displays corresponding channel information;

and updating the channel list interface according to the channel switching operation of the user in the channel list interface.

In a sixth exemplary implementation manner of the first aspect, the controller is configured to update the channel list interface as follows:

tracking the position of a focus according to channel switching operation of a user in the channel list interface;

when detecting that the focus is positioned on the program preview control of the kth channel, loading program preview images of the kth channel, N +1 to (k +1) N channels in advance into a memory; wherein k represents the page number of the channel list, k is more than or equal to 1, and each page of channel list comprises N channel program preview controls which are displayed in the preset layout in a sorted manner;

when receiving the operation of switching to the next channel by the user, zooming the k + N +1 to (k +1) N program preview images loaded from the memory, sequentially displaying the images in N channel program preview controls of the k +1 page channel list, and controlling the k +1 page channel list to cover the k page channel list.

In a seventh exemplary implementation manner of the first aspect, the controller is further configured to perform:

when a first preset operation input by a user is received, inquiring a target preview control to which the focus points currently;

and amplifying and displaying the target program preview image in the target preview control.

In an eighth exemplary implementation manner of the first aspect, the controller is further configured to perform:

when a second preset operation input by a user is received, inquiring a target preview control to which the focus points currently;

and controlling a display to close the channel list interface and displaying the channel programs corresponding to the target preview control.

A second aspect provides a channel list display method, including:

when an operation instruction to display a channel list is received, channel information and a program preview image for each channel are displayed in a channel list interface.

In the technical scheme provided by the application, a broadcast television operator can customize a program preview image in advance according to the current program information of a channel, wherein the program information comprises but is not limited to a program name, a program brief introduction, a program watching point/highlight point, an image picture of highlight time in a program and the like, and the program preview image is transmitted to a display equipment end through code stream data, the display equipment end analyzes the code stream data to obtain the channel information and the program preview image of each channel, wherein the channel information comprises but is not limited to a channel number, a channel name, a channel icon/identifier and the like, so that when a channel list is displayed, a channel list interface not only displays the channel information of each channel, but also displays the program preview image of each channel, and a user can quickly obtain the relevant information of the program broadcast by each channel by viewing the program preview image, therefore, the interested channel is quickly positioned, and the operation efficiency of the user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be accessed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 illustrates a usage scenario of a display device according to some embodiments;

fig. 2 illustrates a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of the display apparatus 200 according to some embodiments;

FIG. 4 illustrates a software configuration diagram in the display device 200 according to some embodiments;

FIG. 5(a) is a UI diagram illustrating a first channel list interface;

fig. 5(b) is a UI diagram illustrating a second channel list interface;

FIG. 6 illustrates a UI diagram of a third channel list interface;

FIG. 7 is a UI diagram illustrating a fourth channel list interface;

fig. 8 exemplarily shows a UI diagram after enlarging a preview image of a target program;

fig. 9 is a UI diagram illustrating a fifth channel list interface;

FIG. 10(a) illustrates a UI diagram when the user moves the focus to the Nth channel program preview control on the 5(b) interface;

FIG. 10(b) illustrates a UI diagram when the user switches focus down on the interface of FIG. 10 (a);

fig. 11 is a flowchart illustrating a channel list display method.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all embodiments.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

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

Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.

In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a notebook, an AR/VR device, and the like.

In some embodiments, the smart device 300 may also be used to control the display device 200. The display device 200 is controlled, for example, using an application running on a smart device.

In some embodiments, the smart device 300 and the display device may also be used for communication of data.

In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

In some embodiments, software steps executed by one step execution agent may be migrated on demand to another step execution agent in data communication therewith for execution. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.

In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.

In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.

In some embodiments, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, 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 apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.

In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, the detector 230 includes a light receiver, a sensor for collecting the intensity of ambient light; alternatively, the detector 230 includes an image collector, such as a camera, which can be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: 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, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 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.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. 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 displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any of a number of selectable objects, such as a hyperlink, an icon, or other operable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions received from the outside, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.

In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of icons, operation menus, and user input instruction display graphics. The graphics processor comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor is configured to receive an external video signal, and perform at least one of video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal displayed or played on the direct display device 200.

In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received frame rate into a video output signal and changing the signal to conform to a display format signal, such as an output RGB data signal.

In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform at least one of noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in the speaker.

In some embodiments, the user may enter a user command on a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A common presentation form of a User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc. visual interface elements.

In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, or the like).

In some embodiments, the system of the display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs can be a Window (Window) program of an operating system, a system setting program or a clock program, and the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer do actions. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on the user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling the exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of the display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for an upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs 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 a layer between hardware and software. As shown in fig. 4, the core layer at least comprises at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..

The above embodiments describe the hardware/software architecture and functional implementation of the display device. The display device may be connected to a signal receiver, such as a set-top box, for watching broadcast television, and watch program resources of each channel provided by the broadcast television, in some application scenarios, a user may call a channel list, the channel list only displays channel information of all channels, the channel information generally includes a channel number, a channel name/identifier, a channel icon, and the like, and the user browses the channel list, that is, obtains the number of channels that the user can see and identifies each channel, thereby quickly locating a channel of interest to watch a program. For example, the user is interested in CCTV-5 with a channel number of 005, but after switching to CCTV-5 through the channel list, the user may need to tune the channel many times to find other interested channel programs if it is found that CCTV-5 is currently playing a snooker competition live broadcast, instead of the sports type live broadcast in which the user is interested.

In this regard, in an exemplary implementation, the broadcast operator may customize a program preview image corresponding to each channel according to program information of a currently playing program of each channel, where the program preview image is visually and vividly displayed and clearly conveys to the user program information in the form of an image, where the program information includes, but is not limited to, a program name, a program introduction, a program duration, a watching point and a highlight point of the program, and the like.

In an exemplary implementation, the program preview image may be a static image, for example, a certain frame of video frame in the program video may be intercepted as a static background of the program preview image; alternatively, the program preview image may also be a dynamic image, for example, a video segment may be formed by capturing consecutive frames of a video image of the program video, and the video segment is used as a dynamic background of the program preview image. The intercepted background image can be any frame/segment in the program video, or in order to improve the attraction of the program preview image, the video frame/video segment of the highlight moment in the program video can be intercepted, and then the text description of the channel program is superposed on the background image, so that the program preview image with luxuriant pictures and texts is manufactured, the display effect of the program preview image is improved, and the user can make a decision on the interest degree of the channel program. The customization and display effect of the program preview image are not limited to those described in the embodiments of the present application.

In one exemplary implementation, for a live type program, a video frame or video clip may not be previously available for capture, and a background image in the form of a preview or poster may be selected for customization.

In an exemplary implementation manner, a broadcast television is used as one of signal sources of a display device, and generally, a data stream is transmitted to the display device in a code stream form, so that the code stream data can carry full-channel information and a program preview image, and the full-channel information and the program preview image are synchronously transmitted to a display device end through the code stream. When the display equipment receives the code stream data, analyzing and acquiring the channel information and the program preview image of the full channel from the code stream data, and storing the channel information and the program preview image in a local storage space, when the display equipment subsequently receives an operation instruction for displaying a channel list, the channel information and the program preview image of each channel can be displayed in a channel list interface, so that a user can accurately know whether the current program on the air of each channel has a watching point and a lighting point which accord with the watching preference of the channel, and the really interested channel is positioned.

In an exemplary implementation manner, the same channel may play different programs at different dates and time periods, so an operator may customize a program preview image of a program to be played at each time of each channel in advance according to a program schedule of each channel, and when the program preview image of a channel is inserted into a code stream, it should be ensured that the program preview image is aligned with a time stamp of the code stream, that is, it is ensured that a preview image of a program being played at a time point corresponding to the time stamp is carried in the code stream, for example, when a certain channel actually plays program 1 at the current time t1, a preview image of program 1 is transmitted at the time stamp t1 in the code stream, and a preview image of program 2 to be played at the time t2 is not transmitted at the time stamp t1, which not only ensures accuracy of displaying a channel list, but also enables a display device to monitor whether the program played by each channel changes in real time according to the code stream, and refreshing the channel list if the channel is changed.

In an exemplary implementation, in consideration of a change of a program plan of a channel, for example, an art a played by a certain satellite video channel during the 20 st-night 21:30 of 08-27 th in 2021 may be temporarily stopped and replaced by a movie B, an operator needs to update a program preview image corresponding to the satellite video channel at a program change node (i.e., 21:30 of 08-27 th in 2021) in time, that is, update the program preview image 1 of the original art a to the program preview image 2 of the movie B, so as to ensure that a display device can update information in a channel list synchronously, and avoid a program information display error in the channel list.

In an exemplary implementation manner, after a broadcast television operator customizes a program preview image of one channel, the program preview image may be stored as a network Resource, and an ICON Uniform Resource Identifier (ICON Uniform Resource Identifier) corresponding to each program preview image is obtained, where the ICON URI is a Resource network address of the program preview image, so that a TV code stream only needs to carry the ICON URI of the program preview image of each channel, and after analyzing the code stream, a display device obtains and accesses the ICON URI, and can locate the program preview image specified by the ICON URI, and download and store the program preview image locally.

In an exemplary implementation manner, taking a broadcast television supporting the ATSC3.0 standard as an example, when a display device receives an ATSC3.0 code stream, a Service Guide Delivery Descriptor (SGDD) table and a Service Guide Delivery Unit (SGDU) table are obtained from the ATSC3.0 code stream. The service guide comprises a plurality of data fragments, one or more data fragments can be encapsulated into the SGDU, and the SGDD is used for describing multicast session information corresponding to a file distribution session for sending the SGDU and providing updated service guide description information and an acquisition mode thereof.

In an exemplary implementation, the SGDD and SGDU tables include Service fragments, and optionally, channel information of each channel, a program identifier and an ICON URI of a program preview image are recorded in the Service fragments, where the program identifier corresponds to an ID of a channel program and is used to identify different programs, and the program identifier may be, for example, a program name, a preset program number/code number, and the like. For a single channel, the channel information, the program identifier and the ICON URI of the program preview image are mapped in association with each other, and as an example only, { CCTV-5, soldier pang nuke-chou, ICON URI5}, which indicates that for the CCTV-5 channel, "soldier pang nuke-chou" (i.e. the program name is used as the program identifier) is currently being played, and the program preview image for downloading the program can be located by accessing the ICON URI 5. Therefore, after acquiring the SGDD and SGDU tables from the ATSC3.0 code stream, the display device analyzes and acquires the Service Fragment from the SGDD and SGDU tables, and then reads the channel information of the full channel and the downloaded program preview image, thereby displaying the matched channel list. It should be noted that the content configuration of the code stream by the operator and the way of acquiring the channel program information by the display device are not limited to those described in the embodiments of the present application.

In an exemplary implementation, the display device may maintain a mapping table, where the mapping table records a mapping relationship corresponding to each channel, where the mapping relationship includes, but is not limited to, a mapping relationship between channel information, a program identifier, and an image resource address (i.e., ICON URI). The channel information includes, but is not limited to, a channel number, a channel name, a channel icon, and the like, and the channel information is generally a constant, and the program identifier and the image resource address are variable quantities, for example, when a program broadcasted on a certain channel is switched, the program identifier is inevitably changed, and the image resource address may be changed or may not be changed.

In an exemplary implementation manner, when the operator configures, the operator may set the program identifiers to be different, and then different ICON URIs are allocated to the program preview images, that is, each produced program preview image has a globally unique ICON URI. For example, for a CCTV-1 channel, the preview image of the program 1 is stored in the ICON URI1, and the preview image of the program 2 is stored in the ICON URI2, so that the display device end needs to access different network addresses according to the code stream indication to download the preview images of different programs in the same channel.

In one exemplary implementation, since the channel list typically only displays the currently on-air programs of the channel, and not the programs that have been previously broadcast (i.e., historical programs), each channel may be assigned a fixed corresponding ICON URI that does not change when the channel program changes, but the preview images of the programs located within the ICON URI are replaced. For example, for CCTV-6, the program preview image 1 of the currently playing program 1 is stored in the ICON URI6, when the channel is switched from program 1 to program 2, the originally stored program preview image 1 in the ICON URI6 address is deleted, and the ICON URI6 is replaced with the program preview image 2 corresponding to the stored program 2, so that when the display device detects that the program of CCTV-6 is updated according to the code stream, the same ICON URI6 is always accessed to download the program preview image again.

In an exemplary implementation, a program preview image is assigned an ICON URI and is generally not reloaded into other ICON URIs.

In an exemplary implementation manner, if the program identifier of a certain channel changes, the channel necessarily switches the program, and if the image resource address changes, it is determined which ICON URI the display device accesses to download and update the program preview image corresponding to the channel. Therefore, the following four cases can be classified according to the program identifier and ICON URI.

Firstly, if the program identifier and ICON URI of channel a are not changed, it is considered that the currently playing program of channel a has not been played, and the display device recognizes that the program of channel a has not been switched, then the program preview image corresponding to channel a in the channel list remains unchanged.

Secondly, the program identifier of the channel a is not changed and the ICON URI is changed, which indicates that the channel a has not switched programs, and only the operator changes the resource address of the current program preview image of the channel a, so that the display of the channel list by the display device is not affected, that is, the program preview image corresponding to the channel a in the channel list remains unchanged.

Thirdly, the program identifiers and the ICON URIs of the channels are changed, so that in order to facilitate distinguishing and describing, the channels are named as first target channels, the display equipment traverses the mapping relation table, whether the first target channels exist in the mapping relation table or not is searched, and if the first target channels are not searched, the program preview images of all the channels are kept unchanged; if the first target channel is found, for example, the first target channel is channel B, and the image resource address of channel B is updated to ICON URI3 from ICON URI2, the display device accesses ICON URI3 after channel B is updated, downloads and stores a new program preview image of channel B, and refreshes the program preview image of channel B in the channel list interface, so that the display device can update the channel list synchronously along with the switching of the channel programs.

In an exemplary implementation manner, since the channel list generally displays real-time on-air program information of each channel, but does not display already-air historical program information, which is equivalent to that an old program preview image before channel B is expired, when a new program preview image of channel B is downloaded, the display device may synchronously delete the old program preview image of channel B stored before, implement replacement and update of the program preview image of each channel, and also release the storage space occupied by the expired image.

Fourthly, the program identifier of the channel a changes while the ICON URI does not change, so that for the convenience of distinguishing and describing, the application names such a channel as a second target channel, the display device traverses the mapping relation table, searches whether the second target channel exists in the mapping relation table, if the second target channel is found, for example, the second target channel is the channel C, the program identifier corresponding to the channel C is changed, i.e., channel C is switched to a new program, the image resource address of channel C remains ICON URI8, but the program preview image stored by ICON URI8 is replaced, the display device still accesses the ICON URI8 originally corresponding to channel C, downloads and stores the new program preview image for channel C at that address, deletes the old program preview image for channel C, and refreshes the program preview image for channel C in the channel list interface, thereby enabling the display device to update the channel list synchronously with the switching of the channel programs.

Through the updating mechanism, the program preview image is refreshed only on the target channel with the changed program identifier, and other channels without switching programs do not need to repeatedly download the program preview image, so that the problems of program preview image display delay, CPU operation load increase and the like caused by repeated downloading are avoided, the program preview image of each channel is ensured to be always instant, effective and available, and the accuracy, stability and reliability of displaying a channel list by a display equipment end are improved.

In some exemplary implementations, in a scenario where the display device plays a channel program or displays an application page, a user may call up a channel list at any time by inputting a specified operation, for example, clicking a channel list button configured on a remote control panel, or clicking a channel list control on an interface of the display device, or inputting a control instruction for displaying a channel list by voice, or the like.

The channels can be classified into a central view and a satellite view in each place according to the region, and can be classified into a sports channel, a financial channel, a movie channel, an entertainment channel, a kids channel, a drama channel and the like according to the program topic category, so that the total number of channels supported by the broadcast television can reach dozens or even hundreds. According to the method and the device, the channel information of each channel is displayed in the channel list, the program preview images of each channel are synchronously displayed, and each program preview image occupies a certain interface area when being spread and displayed, so that the number of channels which can be accommodated and displayed in a channel list interface is limited.

In some exemplary implementations, the channel list interface may display the channel list page by page in units of pages, and if the total number of channels provided by the broadcast television is M, and the display device schedules that at most N channels can be displayed on each page, the total number of pages P divided in total is equal to

I.e. rounding up M/N, e.g. total number of channels M is 147, each page showing 6 channels, then the total number of pages P is calculated to be equal to 25, where page 25 shows only 3 channels. A user can browse and switch a channel list quickly by turning pages, for example, the user is watching the kth page currently, and if k is equal to 1, the user can only turn to the next page and cannot turn up the page; if k is more than 1 and less than P, the user can turn down to the (k +1) th page or turn up to the (k-1) th page, so that the user returns to the previous page to look back; if k is P, the user can only turn to the previous page, but cannot turn down.

Each channel is set with a corresponding channel number, for example, the channel number of CCTV-1 is 001, the channel number of CCTV-2 is 002, etc. In some exemplary implementations, the channels may be sorted according to channel numbers, optionally sorted according to an increasing order of the channel numbers, the display device supports displaying N channels per page, and then the channels sorted in (k-1) × N +1 to k × N bits are loaded and displayed in the k-th page channel list, where k is greater than or equal to 1 and is less than or equal to P. Taking N equal to 6 as an example, the 1 st page displays the channels with 6 bits in sequence, namely the channel numbers are 001-006 in sequence; and the 2 nd page is sequentially displayed and sequenced from the 7 th bit to the 12 th bit, namely the channel numbers are 007 to 012 in sequence, and so on until the P-th page is planned to finish the channel display.

The sorting mode of the channels in the channel list is not limited, and in other exemplary implementations, the channels are sorted in descending order according to the channel numbers, for example; or, recording the channel viewing record of the user history, and sorting the channels according to the viewing frequency, for example, the more frequently the channels are viewed, the more forward the channels are sorted; or, the user can set the priority rule of the channel display according to the watching preference and the interest of the user, and carry out matching sorting on all the channels according to the priority rule, so that the channels preferred by the user can be preferentially displayed, the time consumed for the user to search the interested channels from the channel list is reduced, and the user experience is improved.

In one exemplary implementation, as shown in the channel list interfaces of fig. 5(a) and 5(b), for a single page of a channel list, the display device may generate N channel program preview controls, each for displaying channel information of one channel and a currently up-to-date program preview image. Optionally, the value of N may be adaptively set according to the screen resolution of the display device, and the present application is not particularly limited.

In an exemplary implementation manner, when the program preview image is loaded and displayed in the channel program preview control, the program preview image can be appropriately scaled, so that the size of the program preview image is adapted to the available area of the channel program preview control, which not only prevents the program preview image from exceeding the limited area of the preview control due to an oversize size, thereby avoiding the problems of interaction or coverage and the like between the program preview images of adjacent channels, but also prevents the problems of unclear image details and the like of a user due to an undersize size of the program preview image, thereby improving the display effect of the channel list.

In an exemplary implementation manner, referring to the example of fig. 5(a), the channel program preview control may be set to have a rectangular frame structure, and after the program preview image is scaled, if the image size fits into the overall rectangular frame, the program preview image at this time is equivalent to the background image serving as the channel program preview control, and the corresponding channel information is displayed in a floating layer or the like on the upper layer of the program preview image. For the implementation manner, for example, the channel information may be displayed at an upper position of a margin area in the program preview image, so as to avoid overlapping of the channel information and the program information in the image, and improve the display effect of the channel program preview control.

In an exemplary implementation manner, referring to the example of fig. 5(b), the channel program preview control includes a first area and a second area, where the first area is used to display channel information, and the second area is used to display a program preview image, that is, an internal area of the preview control is divided, so that cross-area separation and independent display between the channel information and the program preview image are realized. In this embodiment, when the program preview image is loaded and displayed, the program preview image needs to be scaled to a size that fits the second area. The specific display form of each channel program preview control is not limited.

In an exemplary implementation manner, each page of channel list may perform channel display according to a preset layout, where the preset layout not only indicates the number (i.e., N value) of channel program preview controls that can be displayed at most in each page of channel list, but also indicates the position distribution of the N channel program preview controls in the channel list interface, so that when the channel list interface is displayed, according to the instruction of the preset layout, the N channel program preview controls are first generated and displayed in a juxtaposed manner, and program preview images sorted in the first N bits are sequentially loaded and displayed in the channel list on the page 1, and then the channel list interface may be updated according to a channel switching operation of a user in the channel list interface.

In an exemplary implementation manner, the display device may generate only N channel program preview controls, and the P-page channel list may share the N channel program preview controls, that is, each time a user turns a page, a new channel program preview control does not need to be generated, and only a channel associated with an existing channel program preview control needs to be switched. After a channel list interface is displayed, recording the number of pages of a current channel list, taking the following as an example, when it is detected that a user switches from the k page to the k +1 page, canceling to display channel program information of (k-1) × N +1 to k × N channels by N channel program preview controls, wherein the channel program information comprises channel information and program preview images corresponding to the same channel, and replacing the N channel program preview controls with channel program information displaying the k × N +1 to (k +1) × N channels, so that the k +1 page channel list is replaced with the k page channel list. The implementation mode creates and maintains N channel program preview control pieces at most, can reduce the processing load of a CPU, but because each time page turning is carried out, particularly when the page is turned upwards, N program preview images need to be loaded from a memory again and zoom, and the image preview and display delay still exists.

In an exemplary implementation, the number of channels included in the last page channel list may be less than N, for example, the total number M of channels is 86, each page shows 6 channels, the total number P of pages is calculated to be equal to 15, each page of the first 14 pages contains 6 channels, and the 15 th page as the last page only contains 2 channels, so that when the user turns down to the 15 th page, the 15 th page channel list only displays two channel program preview controls, and the two controls are displayed in order according to the first two bits in the preset layout.

In an exemplary implementation, the display device may decide whether a new channel program preview control needs to be additionally generated according to a user operation. After a channel list interface is displayed, recording the page number of a current channel list, and if a user stops turning down the page when looking at the k page, no new channel program preview control needs to be generated, and channels associated with the existing k × N channel program preview controls are kept unchanged.

In an exemplary implementation manner, if the user returns to the k-1 th page from the k-th page, it is not necessary to generate a new channel program preview control, and only the k-1 th page channel list is controlled to cover the k-th page channel list, and at this time, channels associated with the existing k × N channel program preview controls remain unchanged.

In an exemplary implementation manner, if the user switches from the k-th page to the (k +1) -th page, that is, turns down the page, N channel program preview widgets may be generated, the total number of the channel program preview widgets accumulated to (k +1) × N, channels associated with the first k × N channel program preview widgets remain unchanged, and the newly generated N channel program preview widgets display channel program information of the k × N +1 to (k +1) × N channels.

As an example, assuming that N is equal to 6, when a user inputs an operation of displaying a channel list interface, according to a preset layout, first generating and arranging 6 channel program preview controls, sequentially associating with channels ranked at the top 6, and displaying program information of channels from 1 st to 6 th, thereby displaying a channel list of page 1; if the user selects to turn down to the 2 nd page, 6 channel program preview controls are created, are sequentially associated with channels which are sequenced from the 7 th to the 12 th, and display the program information of the 7 th to the 12 th channels, so that a 2 nd page channel list is generated, and the 2 nd page is controlled to cover the 1 st page; if the user returns to the page 1 from the page 2, since the channels associated with the 6 channel program preview controls included in the page 1 are not changed and are not replaced by other channels, the page 1 is only required to be controlled to directly cover the page 2, the previous 6 program preview images do not need to be repeatedly loaded from the memory, and repeated zooming adjustment on the previous 6 program preview images is also not needed, so that the problem of picture preview delay during page up turning is solved, the image preview speed is improved, and the user experience is optimized.

In an exemplary implementation manner, if a scheme is adopted that allows a new channel program preview control to be created additionally according to a user page turning operation, since the number of channels included in the last page channel list may be less than N, the display device determines whether the next page is the last page (i.e., the P-th page) when receiving a user page turning operation. If the next page is not the last page, directly creating N channel program preview controls; and if the next page is the last page, generating Q channel program preview controls, wherein Q is the number of channels actually contained in the last page channel list, Q is more than or equal to 1 and less than or equal to N, and Q is M-N (P-1). After Q channel program preview controls of the last page are generated, the Q channel program preview controls are displayed in sequence according to the front Q exhibition positions in the preset layout, and channel program information of the (M-Q +1) -M channel is displayed in the Q channel program preview controls.

In an exemplary implementation, referring to the examples in fig. 5(a) and 5(b), for a single page of channel list, the preset layout is to sequentially and sequentially join the N channel program preview controls up and down in the longitudinal direction, that is, to present the preset layout as a list display mode, and a user, for example, may click up and down keys of a remote controller to switch the channel program preview control to which the focus is directed.

In an exemplary implementation, referring to the example of fig. 6, for a single page of channel list, the preset layout may also be configured to link the N channel program preview controls in order along the horizontal direction, sequentially from left to right, that is, to present in a line-by-line display mode, and a user may click left and right keys of a remote controller, for example, to switch the channel program preview control pointed by the focus.

In an exemplary implementation manner, referring to the example of fig. 7, for a single page of channel list, in order to make the distribution of the channel program preview controls more compact, improve the display effect of the channel list interface, and reduce the interface blank, the preset layout may use an a × B matrix display mode, that is, each channel program preview control is arranged in a matrix form of a row and B column, that is, N ═ a × B, where a value and B value may be equal or different, for example, in a form of 2 rows and 3 columns in fig. 7, and each page includes 6 channel program preview controls in total. The user can switch the focus of the control by operating the direction key of the remote controller, for example, clicking the down key or the right key of the remote controller once, and moving the focus to the control of the next ordinal position; the user clicks the up key or the left key of the remote controller once, and the focus moves to the control of the previous ordinal position. It should be noted that the preset layout is not limited to the example provided in the embodiment of the present application.

In an exemplary implementation, a user may switch the focus of a control in a channel list by operating a remote controller, and optionally, the display device may highlight the focus control, for example, in fig. 6, a rectangular focus frame is disposed on the periphery of the focus control, a highlight effect may be set for the focus frame, for example, a line type, a line thickness, a color, and the like of the focus frame are set, and in fig. 7, a highlight special effect is added to an edge of the focus control. The manner in which the focus is highlighted is not limited to the examples of embodiments of the present application, and for example, appropriate scaling of the focus control, making the focus control different in size from other non-focus controls, and so forth may also be employed. By highlighting the focus control in the channel list, a user can intuitively distinguish the position of the control where the focus of the remote controller is located, thereby accurately positioning the currently selected channel program preview control.

In an exemplary implementation mode, due to the limited size of the channel program preview control, the program preview image displayed in the control is relatively small, so that the user is enabled to perform an enlarging operation on the program preview image. Optionally, when a first preset operation input by a user is received, a target preview control to which the focus is currently directed is queried, and then a target program preview image in the target preview control is displayed in an enlarged manner. Taking fig. 7 as an example, if the user moves the focus to the 6 th channel program preview control and inputs the first preset operation, the display device queries that the control at the last order in the channel list of the page is designated as the target preview control, as shown in fig. 8, the display device may automatically enlarge the program preview image of the 6 th channel according to a certain proportion, so that the graphics and texts in the program preview image are synchronously enlarged, and the user preview effect is improved.

In an exemplary implementation manner, the first preset operation is not limited, for example, the first preset operation is that the user clicks a program preview image in the current focus control, and the clicking manner is not limited to clicking, double clicking, long pressing, and the like; for another example, the first preset operation is an image amplification instruction input by a user through a voice control; for another example, the first preset operation is that the user presses an associated key designated on the remote controller, for example, after the user selects the focus control, the user presses a confirm key/OK key on the remote controller, and the program preview image can be enlarged. For another example, as shown in the example of fig. 9, a zoom-in sub-control may be set in each channel program preview control, and the first preset operation is a user operation on the zoom-in sub-control selected by the user.

In a traditional mode, the user can memorize the channel number of the interested channel, and then input the channel number by using the number keys of the remote controller, so that the display equipment can automatically jump to the corresponding channel to play the television program. Or the display equipment supports the user to quickly enter the channel on the channel list interface, so that the channel programs are quickly positioned and watched.

In an exemplary implementation manner, when a second preset operation input by a user is received, a target preview control to which a focus is currently directed is queried, then a channel list interface is closed, and a jump is automatically made to display a channel program corresponding to the target preview control. Taking fig. 6 as an example, if the user moves the focus to the 3 rd channel program preview control and inputs the second preset operation, the display device queries that the control in the third order in the channel list of the page is designated as the target preview control, and performs automatic tuning from the background according to the channel information corresponding to the target preview control to 003 corresponding CCTV-3 channel, so that the display displays the comprehensive art program on which the CCTV-3 is currently broadcast.

In an exemplary implementation manner, the second preset operation is not limited, for example, the second preset operation is that a user clicks channel information in a current focus control, for example, clicks any one of a channel number, a channel icon, and a channel name, that is, automatic tuning may be triggered; for another example, the second preset operation is a program instruction of a broadcast channel input by the user through the voice control; for another example, the second preset operation is that the user presses a designated associated key on the remote controller, and after the user selects the focus control, for example, presses a TV key or a channel key on the remote controller, the display device may be triggered to automatically tune to the selected channel and play the corresponding channel program; for another example, as shown in the example of fig. 9, a play sub-control is set in each channel program preview control, and the second preset operation is a user operation selected on the play sub-control.

As the amplification sub-control and the play sub-control are generally triggered in the target preview control having a focus, optionally, referring to the example of fig. 9, for the channel program preview control that is not selected and has no focus, the amplification sub-control and the play sub-control may be in a hidden state; when the focus moves to a certain channel program preview control, the hidden states of the two sub-controls are released, and the amplification sub-control and the playing sub-control are simultaneously displayed in the channel program preview control, so that a user can select whether to amplify and view the program preview image and whether to tune and play the selected channel program.

In an exemplary implementation manner, when browsing channels in a page-turning manner, referring to the example of fig. 7, in a single page of channel list, a user switches channels in the list by moving a focus, when the focus is located on a channel program preview control at the end of a current page, the user only needs to click a down key or a right key of a remote controller once again to switch to a next page, and the focus is moved to a channel program preview control at the head of the next page. That is, when the focus is located on the last control of each page of the channel list, the user may be about to turn the page to the next page, so that the program preview images corresponding to N or Q (if the last page is Q) channels included in the next page can be loaded into the memory in advance, so that when the subsequent user actually turns down a page, the images loaded in advance in the memory are quickly displayed in the corresponding channel program preview control, the delay occurring when the program preview images of the new channel are displayed by turning the page is reduced, the refreshing efficiency and the image preview speed of the channel list interface during the page turning are improved, and the user experience is optimized.

In an exemplary implementation manner, according to a channel switching operation of a user in a channel list interface, a focus position is tracked in real time, and when it is detected that a focus is located on a kth × N channel program preview control, that is, the focus is located on an nth (single page last) channel program preview control on a kth page, whether a page k +1 is a last page is detected, that is, whether k is equal to P-1 or whether k +1 is equal to P is detected.

In an exemplary implementation manner, if the k +1 th page is the last page, that is, k is equal to P-1, the program preview images ordered in the k × N +1 to k × N + Q th channels are loaded in the memory in advance for display, where Q is not less than 1 and not more than N, and Q is M-N (P-1), and then when an operation of switching to the next channel by the user (which is equivalent to an operation of switching to the k +1 th page by the user) is received, the k × N +1 to k × N + Q program preview images instantly loaded from the memory are scaled and displayed in the Q channel preview controls of the k +1 th page channel list in sequence, so that the k +1 th page channel list covers the k th page channel list, that is, the fast refresh of the channel list interface can be implemented. The embodiment can eliminate the time consumption of loading the program preview image into the memory from the local storage, and after the real page turning of the user is determined, the Q channel program preview controls of the (k +1) th page channel list take effect and display the channel program information.

In an exemplary implementation manner, if the k +1 th page is not the last page, that is, k is smaller than P-1, the program preview images ordered in the k × N +1 th to (k +1) × N th channels are loaded in the memory in advance and are waiting to be displayed, and then when an operation of switching to the next channel by the user (equivalent to an operation of switching to the k +1 th page by the user) is received, the k × N +1 th to (k +1) × N program preview images immediately loaded from the memory are scaled and then are sequentially displayed in the N channel preview program controls of the k +1 th page channel list, and the k +1 th page channel list is made to cover the k +1 th page channel list. The embodiment can eliminate the time consumption of loading the program preview image into the memory from the local storage, and after the real page turning of the user is determined, the N channel program preview controls of the (k +1) th page channel list take effect and display the channel program information.

In other exemplary implementations, if the k +1 th page is the last page, the program preview images ordered in the k + N +1 th to k + N + Q th channels are loaded in the memory in advance, the k + N +1 th to k + N + Q th program preview images loaded from the memory in real time are scaled and then sequentially dropped into the Q channel program preview widgets of the k +1 th page channel list, which is equivalent to building the k +1 th page channel list before the user turns pages, except that the k +1 th page channel list is covered by the k +1 th page channel list, and then when an operation of switching from the user to the next channel (equivalent to an operation of switching from the user to the k +1 th page) is received, the k +1 th page channel list is directly controlled to be uncovered by the k +1 th page channel list, the channel list of the (k +1) th page can be displayed on the display, so that the time consumption of loading the image from the memory and zooming the image is eliminated, the speed of refreshing the channel list during page turning is further increased, the image preview delay is eliminated, and the user experience is enhanced.

In other exemplary implementations, if the (k +1) th page is not the last page, the program preview images ordered in the (k + N +1) th to (k +1) th N-th channels are loaded in the memory in advance, the (k + N +1) th to (k +1) th program preview images loaded from the memory in real time are scaled and then sequentially dropped into the N channel program preview controls of the (k +1) th page channel list, which is equivalent to making the N channel program preview controls of the (k +1) th page channel list effective in advance, which is equivalent to building the (k +1) th page channel list in advance before the user turns pages, except that the (k +1) th page channel list is covered by the (k +1) th page channel list, and then when an operation of switching the user to the next channel is received (equivalent to an operation of switching the user to the (k +1) th page, the (k +1) th page channel list) is directly controlled to inversely cover the k +1 th page channel list, the channel list of the (k +1) th page can be displayed on the display, so that the time consumption of loading the image from the memory and zooming the image is eliminated, the speed of refreshing the channel list during page turning is further increased, the image preview delay is eliminated, and the user experience is enhanced.

For the scheme that N or Q channel program preview controls of the k +1 th page channel list are effective in advance before the user turns the page, since the user moves the focus to the nth (last) channel program preview control of the k page, the previous page (i.e., the k-1 th page) may be returned, or the focus may be switched to the non-last control of the k page, or the user may select to start playing a program of a certain channel in the k page, that is, the user does not turn the page to the k +1 th page, if the UI interface layer of the k +1 th page channel list which is constructed in advance is maintained for a long time but is not displayed, the display resources are occupied inefficiently. In an exemplary implementation manner, when the UI layer of the k +1 th page channel list is constructed, timing may be started, and when the timing duration reaches a preset timeout time, if the display device does not receive an operation of switching to the k +1 th page all the time, the UI layer of the constructed k +1 th page channel list may be cancelled, and after an operation of switching to the k +1 th page by the user is really received, N or Q program preview images associated with the k +1 th page channel list are immediately loaded from the memory, and are displayed in the corresponding channel program preview controls in sequence after zooming.

For the scheme that the display device only creates and maintains N channel program preview controls, it is equivalent to constructing a general channel list page, and synchronously refreshing the channel information and program preview images displayed by the N channel program preview controls in the page, that is, achieving the effect similar to turning pages by replacing the entire page of displayed content. For the implementation scheme, when the focus moves to the nth channel program preview control in the page each time, the next group of N program preview images can be automatically loaded into the memory from the local storage in advance, so that the image preview delay during the channel list page refreshing is reduced, and the speed of previewing the images by the user is improved.

The mode of displaying the channel list by page and page may implement fast browsing of the full channel, but the display mode of the channel list is not limited thereto. In another exemplary implementation, for example, the channel list may also be displayed in a sliding mode, referring to fig. 5(b), taking N as 4 as an example, when the user moves the focus onto the nth channel program preview control, the UI changes to the example in fig. 10(a), and then the user moves the focus downward by one bit, as shown in fig. 10(b), the N +1 th channel program preview control acquires the focus and occupies the nth order in the longitudinal direction, and at the same time, the first N channel program preview controls all move upward by one bit, where the 1 st channel program preview control moves out of the interface, and the 2 nd to nth channel program preview controls all occupy the first N-1 order in the longitudinal direction in sequence, that is, each channel program preview control slides upward by one bit each time the user presses the down key of the remote controller once; when the display device displays the interface of fig. 10(b), if the user presses the up key of the remote controller once, the program preview control of each channel slides down by one bit, so as to return to the interface shown in fig. 10 (a).

Similarly, if the line-based display shown in fig. 6 is adopted, each channel program preview control slides one bit to the left when the user presses the right key of the remote controller once; each time the user presses the left key of the remote control once, the channel program preview controls slide one bit to the right, i.e., there is only a difference in the direction of the slide compared to the column-wise display of fig. 5 (b).

In an exemplary implementation, when the channel list is displayed in the sliding mode, subsequent program preview images may also be preloaded by tracking the focus. Referring to the example of fig. 10(a), when the focus is currently moved to the nth channel program preview control, the program preview images ordered in the N +1 nd to 2 nd channels are preloaded into the memory from the local storage, and when the user presses the down key of the remote controller once, the N +1 th program preview image is zoomed and then loaded and displayed in the N +1 th channel program preview control, the channel information of the N +1 th channel is synchronously displayed in the N +1 th channel program preview control, and then the N +1 th channel program preview control occupies the longitudinal nth order, so as to present the interface effect of fig. 10 (b).

In an exemplary implementation manner, when the channel list is displayed in the sliding mode, when it is detected that the focus moves to the jth × N channel program preview widget, it is required to preload the next group of N program preview images, that is, the jth × N +1 to (j +1) × N program preview images, to the memory, where j is an integer greater than or equal to 1, that is, when the focus moves to the channel program preview widget whose sequence number is an integer multiple of N, a preloading procedure of the program preview images is executed.

In an exemplary implementation manner, when a channel list is displayed in a sliding mode, only N channel program preview controls may be created and maintained without adding a new channel program preview control along with a sliding operation, taking sliding up and down as an example, each time a user presses a down key of a remote controller, channel serial numbers associated with the N channel program preview controls are sequentially incremented by 1, and channel information and a program preview image are replaced and updated according to the incremented channel serial numbers; and each time the user presses the up key of the remote controller once, the channel serial numbers associated with the N channel program preview controls are sequentially decreased by 1, and the channel information and the program preview images are replaced and updated according to the decreased channel serial numbers. Namely, the channel program information displayed by the N channel program preview controls needs to be refreshed synchronously with each sliding operation, so as to realize the dynamic update of the channel list interface.

In an exemplary implementation, as illustrated in the example of fig. 11, the present application provides a channel list display method configurable to be executed by a controller 250 in a display device, the method comprising the program steps of:

step S01, acquiring channel information and a program preview image of each channel according to the received code stream data, where the program preview image is used to show program information currently broadcast by the channel.

In step S02, upon receiving an operation instruction to display a channel list, channel information and a program preview image for each channel are displayed in the channel list interface.

The specific implementation and details of each step in the method may be referred to and verified with respect to the related embodiments, and thus are not described herein again.

The invention customizes the program preview image of each channel through the operator, and transmits the program preview image and the channel information to the display equipment end along with the code stream, and the display equipment synchronously displays the channel information of each channel and the current program preview image in the channel list, thereby enabling the user to quickly screen the interested channel.

It should be noted that, on the basis of the essential solution illustrated in fig. 11, adaptive modification, improvement and expansion can be flexibly performed on the channel list display method to obtain more diversified and feasible UI and program solutions, which can be combined with various factors such as a preset layout, a channel list display and switching mode (not limited to page-flipping, sliding, etc.), a channel list refresh mode (not limited to replacement update of N channel program preview controls, multi-control multi-page overlay update, etc.), an image preloading mode, different interactive operation scenes of a user, and other requirements of the market for channel list functions, and the like, and is not limited to the embodiments provided in this specification. In addition, the UI provided in the present application is only schematic for convenience of description, and does not represent an actual product design, and the operation flow and the display effect of the UI shall be subject to actual application and design.

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented in software, with the necessary implementation of a general purpose hardware platform. In a specific implementation, the invention also provides a computer storage medium, which can store a program. When the computer storage medium is located in the display apparatus 200, the program may include the program steps involved in the channel list display method in the foregoing embodiments when executed. The computer storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM) or a Random Access Memory (RAM).

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; while the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the exemplary discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising:

a display for displaying a channel list interface;

a controller configured to perform:

2. The display device according to claim 1, wherein the controller is configured to acquire the channel information and the program preview image for each channel as follows:

3. The display device according to claim 2, wherein after storing the program preview images of all channels, the controller is configured to perform:

4. The display device according to claim 3, wherein the controller is configured to update the mapping relation table as follows:

detecting whether a first target channel exists in the mapping relation table or not according to the service fragment analyzed from the code stream data transmitted in real time and the mapping relation table, wherein the first target channel is a channel with changed program identification and image resource address;

if the first target channel exists in the mapping relation table, downloading and storing a new program preview image of the first target channel by using the updated image resource address of the first target channel, and deleting an old program preview image of the first target channel;

5. The display device according to claim 3, wherein the controller is configured to update the mapping relation table as follows:

if a second target channel exists in the mapping relation table, downloading and storing a new program preview image of the second target channel by using the current image resource address of the second target channel, and deleting an old program preview image of the second target channel;

6. The display device according to claim 1, wherein the controller is configured to display the channel information and the program preview image for each channel as follows:

7. The display device of claim 6, wherein the controller is configured to update the channel list interface as follows:

8. The display device according to claim 7, wherein the controller is further configured to perform:

9. The display device according to claim 7, wherein the controller is further configured to perform:

10. A method for displaying a channel list, comprising: