CN118055297A

CN118055297A - Display device and program list updating method

Info

Publication number: CN118055297A
Application number: CN202211438036.9A
Authority: CN
Inventors: 顾永辉; 薛任翔
Original assignee: Vidaa Netherlands International Holdings BV
Current assignee: Vidaa Netherlands International Holdings BV
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-17

Abstract

Some embodiments of the present application provide a display device and a method for updating a program list, where the method may request an event information table and an extended text table in the program list in response to a power-on instruction of the display device, so as to generate a list database. And if the event information table and/or the expansion text table are changed, re-requesting the event information table and the expansion text table. And then caching event information tables and/or expansion text tables which are different from the list database, and analyzing effective data used by the program list in the cached data. And storing the effective data into a list database, so that loading and updating of the event information table and the expansion text table are completed rapidly, and the user experience is improved.

Description

Display device and program list updating method

Technical Field

The present application relates to the field of display devices, and in particular, to a display device and a program list updating method.

Background

The display device refers to an electronic device capable of outputting a specific display screen, and may be an electronic device such as a smart television, a communication terminal, a smart advertisement screen, and a projector. Taking intelligent television as an example, the intelligent television is based on the ATSC broadcast television technology, has an open operating system and a chip, has an open application platform, can realize a bidirectional man-machine interaction function, and is a television product integrating multiple functions of video, entertainment, data and the like, and the intelligent television is used for meeting the diversified and personalized requirements of users.

When a user views a television program through a display device, the program event of each channel can be viewed through an EPG (Electro nic Program Guide, i.e., electronic program guide) program listing of each channel in the display device. Clicking the corresponding program event can make the display device display and play the corresponding program. The EPG program list of each channel is mainly composed of a plurality of EITs (Event Information Table, i.e., event information tables) and ETTs (Event Text tables, i.e., extended Text tables). However, since more EIT and ETT data are included in the channel, when the user views the content of the program list or updates the EPG, the user needs to load for a long time, resulting in low loading and updating efficiency of the program list and reduced user experience.

Disclosure of Invention

The application provides display equipment and a program list updating method, which are used for solving the problem of low program list loading and updating efficiency.

In a first aspect, the present application provides a display apparatus comprising: a display and a controller. Wherein the controller is configured to perform the following program steps:

Responding to a starting instruction of the display equipment, and requesting data information of an event information table and an expansion text table in a program list to generate a list database, wherein the data information comprises version information and description information of the event information table and the expansion text table;

if the event information table and/or the data information of the expansion text table are changed, re-requesting the event information table and the data information of the expansion text table;

Caching updated data information, wherein the updated data information is data information different from the list database in the data information of the re-request;

and analyzing the effective data information in the updated data information, and storing the effective data information into the list database, wherein the effective data information is effective data used by the program list.

In some embodiments of the present application, the controller executing the re-request of the event information table and the data information of the extended text table is configured to: and counting the number of the event information tables, and analyzing characteristic elements of the event information tables, wherein the characteristic elements represent whether the current event comprises the expansion text table or not. Counting the number of the expansion information tables according to the characteristic elements; grouping and requesting the event information table and the expansion text table according to the quantity of the event information table and the expansion information table so as to obtain a data information group.

In some embodiments of the present application, the controller executing the cache update data information is configured to: detecting version information of the event information table and the expansion text table in the data information group respectively; and if the version information is different from the version information in the list database, caching the data information of the event information table or the expansion text table currently.

In some embodiments of the present application, the controller executing the cache update data information is configured to: monitoring the detection progress of the event information table and the expansion text table of the request; and stopping requesting the data information group after the information data of the event information table and the expansion text table are detected.

In some embodiments of the application, the controller is further configured to: acquiring a program list query instruction of a target channel; responding to the program list inquiring instruction, and inquiring a target channel and a time range; obtaining target data information in the list database through iteration, wherein the target data information is the data information in the time range in the target channel; and assembling the target data information into query result information, and controlling the display to display the query result information.

In some embodiments of the application, the controller is further configured to: and if the target data information does not exist in the list database, controlling the display to display prompt information of the program list which is not queried.

In some embodiments of the application, the controller performs storing the valid data information into the list database, configured to: detecting the channel and time information to which the effective data information belongs; and storing the effective data information into the list database according to the channel sequence and/or the time sequence in the channel and time information.

In some embodiments of the application, after the channel is started, the controller is further configured to; frequency-locking filtering the transmission flow of the data information; analyzing the current time point of the transport stream; and clearing out the expiration data information in the list database according to the current time point, wherein the expiration data information is the data information of which the starting time of the event is earlier than the current time point.

In some embodiments of the application, the controller is further configured to; acquiring a channel list and detecting update information of the channel list; after the channel list is updated, traversing channel information in the channel list; and deleting invalid information in the list database according to the channel information, wherein the invalid information is data information without corresponding channels.

In a second aspect, the present application further provides a method for updating a program list, including:

responding to a starting instruction of display equipment, requesting data information of an event information table and an expansion text table in a program list to generate a list database, wherein the data information comprises version information and description information of the event information table and the expansion text table;

According to the technical scheme, the display equipment and the program list updating method can respond to the starting-up instruction of the display equipment to request the event information list and the expansion text list in the program list so as to generate a list database. And if the event information table and/or the expansion text table are changed, re-requesting the event information table and the expansion text table. And then caching event information tables and/or expansion text tables which are different from the list database, and analyzing effective data used by the program list in the cached data. And storing the effective data into a list database, so that loading and updating of the event information table and the expansion text table are completed rapidly, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to some embodiments of the present application;

Fig. 2 is a schematic diagram of a hardware configuration of a display device according to some embodiments of the present application;

Fig. 3 is a schematic hardware configuration diagram of a control device according to some embodiments of the present application;

FIG. 4 is a schematic diagram of a software configuration of a display device according to some embodiments of the present application;

fig. 5 is a schematic diagram of a connection relationship between a display device and a server according to some embodiments of the present application;

FIG. 6 is a schematic diagram illustrating the effects of a program listing provided by some embodiments of the present application;

Fig. 7 is a schematic diagram of an update flow of a program list according to some embodiments of the present application;

FIG. 8 is a flow chart of a packet request event information table and an extended text table according to some embodiments of the present application;

FIG. 9 is a flow chart of detecting data information sets according to some embodiments of the present application;

FIG. 10 is a flowchart illustrating a process for verifying whether an event information table and an extended text table are changed according to some embodiments of the present application;

FIG. 11 is a schematic diagram illustrating the effect of querying program information according to some embodiments of the present application;

FIG. 12 is a flowchart of querying program information according to some embodiments of the present application;

FIG. 13 is a flow chart illustrating the process of cleaning up outdated program data information according to some embodiments of the present application;

Fig. 14 is a flowchart illustrating clearing invalid program data information according to some embodiments of the present application;

fig. 15 is a schematic diagram of a program list loading process according to some embodiments of the present application;

fig. 16 is a schematic diagram of a program listing software architecture according to some embodiments of the present application.

Detailed Description

Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the application. Merely exemplary of systems and methods consistent with aspects of the application as set forth in the claims.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second, third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar 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," "comprising," and "having," 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 explicitly 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 or/and software code that is capable of performing the function 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 device 200 is also in data communication with a server 400, and a user can operate the display device 200 through the smart device 300 or the control apparatus 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 infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. 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 one of a mobile terminal, tablet, computer, notebook, AR/VR device, etc.

In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled 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 perform control in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 device for acquiring voice commands, or the voice command control of the user may be received through a voice control apparatus configured outside the display device 200 device.

In some embodiments, display device 200 is also in data communication with server 400 based on ATSC digital television broadcast technology over a transmission network, which may be terrestrial broadcast, or cable television and satellite reception. The server 400 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.

In some embodiments, software steps performed by one step execution body may migrate on demand to be performed on another step execution body in data communication therewith. For example, software steps executed by the server may migrate to be executed on demand on a display device in data communication therewith, and vice versa.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with an exemplary embodiment. As shown in fig. 2, the control device 100 includes a control processor 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 of a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, and function as an interaction between the user and the display device 200.

Fig. 3 shows a hardware configuration block diagram of the display device 200 in accordance with an exemplary embodiment.

In some embodiments, display apparatus 200 includes at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, 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, RAM, ROM, a first interface for input/output to an nth interface.

In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, for receiving an image signal from the controller output, for displaying video content, image content, and components of a 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, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types.

In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for capturing the intensity of ambient light; either the detector 230 comprises an image collector, such as a camera, which may be used to collect external environmental scenes, user attributes or user interaction gestures, or the detector 230 comprises a sound collector, such as a microphone or the like, for receiving 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, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be 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 one of selectable objects, such as a hyperlink, an icon, or other operable control. The operations related to the selected object are: displaying an operation of connecting to a hyperlink page, a document, an image, or the like, or executing an operation of a program corresponding to the icon.

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

As shown in fig. 4, the system of the display device 200 is divided into three layers, an application layer, a middleware layer, and a hardware layer, from top to bottom.

The application layer mainly comprises common applications on the television, and an application framework (Application Framework), wherein the common applications are mainly applications developed based on Browser, such as: HTML5 APPs; a native application (NATIVE APPS);

The application framework (Application Framework) is a complete program model with all the basic functions required by standard application software, such as: file access, data exchange, and the interface for the use of these functions (toolbar, status column, menu, dialog box).

The application framework layer in the embodiment of the application comprises a manager (Managers), a Content Provider (Content Provider) and the like, wherein the manager comprises at least one of the following modules: an activity manager (ACTIVITY MANAGER) is used to interact with all activities running in the system; a Location Manager (Location Manager) is used to provide system services or applications with access to system Location services; a package manager (PACKAGE MANAGER) for retrieving various information about the application packages currently installed on the device; a notification manager (Notification Manager) for controlling the display and clearing of notification messages; a Window Manager (Window Manager) is used to manage bracketing icons, windows, toolbars, wallpaper, and desktop components on the user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the individual applications as well as the usual navigation rollback 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 a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (such as reducing the display window to display, dithering display, distorting display, etc.), detecting whether to start a cursor mode, controlling the cursor to move to a corresponding position after the cursor mode is started, etc., for example, the window manager can call the display parameters of the cursor after detecting that the cursor mode is started, and control the cursor to be displayed in the screen according to the display parameters of the cursor, and can move the cursor to a target position on the screen according to the received cursor movement instruction.

The native application (NATIVE APPS) may support online or offline, message pushing, or local resource access.

The middleware layer includes middleware such as various television protocols, multimedia protocols, and system components. The middleware can use basic services (functions) provided by the system software to connect various parts of the application system or different applications on the network, so that the purposes of resource sharing and function sharing can be achieved.

The hardware layer mainly comprises a HAL interface, hardware and a driver, wherein the HAL interface is a unified interface for all the television chips to be docked, and specific logic is realized by each chip. The driving mainly comprises: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive, etc.

As shown in fig. 5, the display device 200 may communicate with the server 400 in use, enabling data interaction. For example, the user may trigger the display device 200 to display a program list through the interaction instruction, where the program list may include titles, start times, detailed descriptions, program levels, and media asset items of the programs in the multiple channels, where each media asset item corresponds to a network address, and the network address is used to download corresponding media asset data. The display apparatus 200 may acquire an acquisition request for media asset data from the server 400 in response to an interactive instruction input by the user. The user may request the server 400 to download corresponding media asset data for playback by the display device 200 through selection of media asset items in the program listing.

After receiving the acquisition request, the server 400 may extract media items included in the corresponding channel in the memory according to the acquisition request, and feed back the extracted media items to the display device 200. The display device 200 then generates a program list according to the media items fed back by the server 400, and displays the program list on the display 260, thereby providing a good program navigation mechanism for the display device 200.

After the user selects the corresponding media item in the program list to play, the display device 200 may acquire media data from the server 400 in real time during playing the media item, and continuously form a media picture through processing such as decoding and rendering.

In order to achieve data interaction between the display device 200 and the server 400, the display device 200 needs to establish a communication connection with the server 400. For example, the display device 200 and the server 400 may establish a communication connection through a transmission network, and interactive data may be transferred between the display device 200 and the server 400 through the transmission network.

In some embodiments, it may be necessary to provide components for establishing a communication connection on the display device 200 and the server 400, respectively. That is, as shown in fig. 5, a communicator 220 may be provided in the display device 200, and a communication module may be provided in the server 400, and the communicator 220 and the communication module may simultaneously support at least one identical communication manner to establish a communication connection relationship. For example, the communicator 220 on the display device 200 includes a fiber optic interface, such that the display device 200 may connect to a network through the fiber optic interface; meanwhile, the communication module of the server 400 also includes an optical fiber interface, and the network may also be connected through the optical fiber interface, so as to implement communication connection between the display device 200 and the server 400.

It should be noted that, the display device 200 and the server 400 may also use other connection methods to establish a communication connection relationship. Such as wired broadband, wireless local area network, cellular network, bluetooth, infrared, radio frequency communications, etc.

A "many-to-one" connection may be between the display device 200 and the server 400, i.e., multiple display devices 200 may establish a communication connection with the same server 400, such that the server 400 may provide services to multiple display devices 200. The display device 200 and the server 400 may also be in a "many-to-many" connection relationship, i.e., the plurality of display devices 200 may establish communication with the plurality of servers 400, so that the plurality of servers 400 may respectively provide different services for the display device 200. It is obvious that in an individual application scenario, there may also be a "one-to-one" connection between the display device 200 and the server 400, i.e. one server 400 is dedicated to serve one display device 200.

In order to be able to provide services to the display device 200, a storage module may be further included in the server 400, and the storage module may store various resource data, information files, and control programs. Along with the interaction process of the user, the display device 200 may acquire different data in the storage module of the server 400, for example, when the display device 200 requests a certain media item, a play data acquisition request may be sent to the server 400, after receiving the request, the server 400 may extract the media data to be played in the storage module, and transmit the media data to the display device 200, so that the display device 200 may decode and display the media data. The control program stored in the storage module may be executed by the control module of the server 400, so that the control module may perform a corresponding function according to the control program.

Based on the above application scenario, in some embodiments, the application layer of the display device 200 includes at least one application program that can display a corresponding icon control in the display 260, such as: a live television application icon control, a video on demand application icon control, a media center application icon control, an application center icon control, a game application icon control, and the like.

In some embodiments, the live television application may provide live television via different signal sources. For example, a live television application may provide television signals using inputs from cable television, radio broadcast, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

In some embodiments, the video on demand application may provide video from different storage sources. Unlike live television applications, video-on-demand provides video displays from some storage sources. For example, video-on-demand may come from a server side of cloud storage or from a local hard disk storage containing stored video programs, etc.

In some embodiments, the media center application may provide various multimedia content playing applications. For example, a media center may be a different service than live television or video on demand, and a user may access various images or audio through a media center application.

In some embodiments, an application center may be provided to store various applications. The application may be a game, an application, or some other application associated with a computer system or other device but which may be run in a smart television. The application center may obtain these applications from different sources, store them in local storage, and then run on display device 200.

Based on the above application scenario, when playing live tv programs, in some embodiments, the display device 200 may further record media items of each channel in the display device 200, that is, program information in each channel in real time, and then generate a program list according to the program information played by each channel. For example, the display device 200 includes a channel DC a, a channel DC b, and a channel DC c. During the day, the channels DC a, DC b and DC c will live different programs, and program information of the channels DC a, DC b and DC c, which are historically played, is recorded in the program list of the display device 200.

In some embodiments, the list of programs requested by the display device 200 from the server 400 is an EPG (Electronic Program Guide ). The EPG is mainly composed of EIT (Event Information Table ) and ETT (Event Text Table, extended Text Table). The display device 200 may obtain the event information table EIT and the extended text table ETT of the EPG by parsing the MGT (Master Guide Table, main guide table). The event information table EIT can provide event information of channels, and the extended text table ETT can provide detailed descriptions of the channels and the events. The EPG may combine the media items of all channels in the display device 200 together according to different classification rules. Accordingly, the user can cause the display device 200 to control the display 260 to play the corresponding media asset by selecting the media asset item in the EPG.

In some embodiments, the display device 200 may obtain a plurality of control instructions input by a user, wherein a portion of the control instructions are used to control the display device 200 to present a program listing interface, referred to as a program listing query instruction. The user may enter program listings query instructions via different interaction means or based on different user interfaces. The display device 200 may cause the display device 200 to present a program listing interface in response to the program listing query instruction.

For example, as shown in fig. 6, fig. 6 is an EPG interface. The EPG interface can comprise various menus, media items, links and other components which can be clicked directly when a user selects a program; or may also include various types of dynamic or static multimedia content for viewing by the user. The user can call out the EPG interface through a key on the display apparatus 200 or a key on the control device 100 that the display apparatus 200 is matched with. Or the user can input a startup command through the control device 100 matched with the display device 200 to control the display device 200 to start up, and the display device 200 can automatically run a startup program of an operating system to present an EPG interface after receiving the startup command. The EPG interface of FIG. 6 shows program information for channels DC a, DC b, DC c, and DC d of display device 200 at 9:00-14:00 on the same day. In the EPG interface, the user can review the historically played programs for each channel in the display device 200 by selecting the corresponding program item.

It should be noted that, the various user interfaces presented on the display device 200 need to be displayed after communication with the server 400.

In some embodiments, the display device 200 may also detect in real-time the type of media asset being currently played by the display 260. When the media asset playing type is live broadcast, the display device 200 parses real-time playing time point information from the current program TS (transport stream) data stream. When the user performs a fast forward operation on the display apparatus 200, if the parsed time point is equal to the current time point, the display apparatus 200 controls the display 260 to display a prompt message that the fast forward is not possible. That is, when watching a live program, the user can drag the play progress of the current program forward, review the play content before the current point in time, but cannot perform a fast forward operation on the live program.

In some embodiments, the display device 200 also detects the progress of viewing of the program to generate a historical viewing record when the user reviews the historical program for the channel. When the user watches the program again, the display device 200 can automatically jump to the progress position of the last watching according to the historical watching record, and play the program so as to meet the requirement of the user for watching continuously. And, the display device 200 may also pop-up the confirmation window before jumping to the progress position of the history viewing record. A tab for continuing to view and re-view may be included in the confirmation window so that the user may choose to continue to view the program or to re-start viewing the program from an initial time in the confirmation window so that the display device 200 may provide personalized services to the user.

However, 180 event information tables EIT and extended text tables ETT can be supported maximally in one EPG program list, i.e. program information which can be displayed for 16 days maximally in the program list. Then, after the user invokes the program list interface, when the display device 200 obtains the data information of all the event information table EIT and the extended text table ETT, a large amount of CPU (Central Processing Unit ) resources in the display device 200 are occupied; or a longer loading time is required to display the program list in the display device 200, resulting in a slower loading speed of the program list in the display device 200, which affects the user experience.

Based on the application scene, in order to improve the experience of the user and improve the problem of slow loading speed of the program list, some embodiments of the present application provide a program list updating method. As shown in fig. 7, the method specifically includes the following:

S100: and responding to a starting instruction of the display equipment, and requesting data information of an event information table and an expansion text table in the program list to generate a list database.

After the display device 200 is turned on, the data information of the event information table and the expansion text table in the program list can be obtained, and an initial list database is generated. The data information may include version information and description information of an event information table and an extended text table. When a user invokes a show program list, the display device 200 may directly read program information from the list database, thereby increasing the loading speed of the program list.

For example: the user inputs a power-on instruction to the display device 200 through the remote controller. After the display device 200 is started, the background starts the EPG, starts to read the EPG database, and caches the data information of the event information table EIT and the extended text table ETT. After the display device 200 is started, the media items corresponding to the current time point and the current channel in the display device 200 are locked and played, and then the data request of the MGT in the display device 200 is started.

S200: and if the event information table and/or the data information of the expansion text table are changed, re-requesting the data information of the event information table and the data information of the expansion text table.

After the display device 200 is started, the data information of the event information table and the expansion text table is monitored in real time. If any one of the data in the event information table or the extended text table is changed, the program list needs to be updated. The display device 200 re-requests the data information of the event information table and the extended text table so as to check whether the version information of the event information table and the extended text table in the list database is changed.

For example: after the display device 200 is started, the media items corresponding to the current time point and the current channel in the display device 200 are locked and played, and the data request of the MGT is started. After the data request of the MGT is started, the display device 200 further monitors the MGT, and simultaneously parses the data information of the event information table EIT and the extended text table ETT in the MGT, so as to monitor whether the data information of the event information table EIT and the extended text table ETT is changed. After detecting that the version of one of the event information tables EIT is changed, the display apparatus 200 requests the event information table EIT and the extended text table ETT from the server 400 again.

Since a large number of event information tables and extended text tables are included in one channel, in order to increase the response speed of the display apparatus 200. In some embodiments, the display device 200 further groups the event information table and the extended text table when re-requesting the data information of the event information table and the extended text table. That is, as shown in fig. 8, the number of the event information tables is counted, and the feature elements of the event information tables are parsed, wherein the feature elements represent whether the current event includes the extended text table. And then counting the number of the expansion information tables according to the characteristic elements, and grouping and requesting the event information tables and the expansion text tables according to the number display equipment 200 of the event information tables and the expansion information tables so as to acquire a data information group. Grouping the event information table and the expansion text table, and requesting the event information table and the expansion text table according to the form of the data information group can reduce the times that the display device 200 requests the event information table and the expansion text table from the server 400, and improve the loading efficiency of the program list after power-off restarting or channel changing.

For example: when the display device 200 monitors that the data information of the event information table EIT and/or the extended text table ETT is changed, the number of the event information table EIT and the extended text table ETT is counted, the event information table EIT and the extended text table ETT are grouped, and each data information group comprises 4 event information tables EIT and 4 extended text tables ETT, so that a plurality of data information groups are generated. Then, the display device 200 groups the request event information table EIT and the extended text table ETT, that is, the display device 200 may request the data information group formed by the 4 event information tables EIT and the 4 extended text tables ETT to the server 400 at a time.

S300: the update data information is cached.

After the display device 200 re-requests the event information table and the extended text table, the data information changed in the event information table and the extended text table needs to be re-cached to form updated data information. Wherein the updated data information is data information different from the list database among the data information newly requested. That is, after the event information table and the extended text table are re-requested, the display device 200 compares the data information of the re-requested event information table and the extended text table with the data information stored in the list database, and then caches the comparison result into different event information tables and extended text tables.

Since the event information table is different from the data information in the extended text table, the display device 200 needs to compare the data information in the event information table and the extended text table, respectively, when comparing. That is, in some embodiments, as shown in fig. 9, the display device 200 detects version information of the event information table and the extended text table in the data information set, respectively. And if the version information is different from the version information in the list database, caching the data information of the event information table or the expansion text table currently.

For example: the display device 200 groups the request event information table EIT and the extended text table ETT, each data information group includes 4 event information tables EIT and 4 extended text tables ETT, and the display device 200 requests the demux (demultiplexer) for filtering the data information of the event information table EIT and the extended text table ETT. When the data information group arrives, the demux filters out the data information of the event information table EIT and the extended text table ETT respectively, and compares the data information with the information data of the event information table and the extended text table in the list database.

Obviously, if the data information in the event information table or the expansion text table is changed, the version of the event information table or the expansion text table is updated. However, the display apparatus 200 may also generate a recognition error when comparing version information of the event information table with version information of the extended text table. For example, the event information table or the extended text table has been changed, but the publication information is not detected to be changed.

Accordingly, to improve the accuracy of the display device 200 in comparing the event information table or the extended text table, in some embodiments, as shown in fig. 10, the display device 200 detects version information and CRC (CyclicalRedundancyCheck, cyclic redundancy check) of the event information table and the extended text table, respectively, in the data information set. If the version information or CRC of the event information table and the version information or CRC of the extended text table are different from those of the list database, caching the data information of the current event information table and the extended text table.

For example: the display device 200 groups the request event information table EIT and the extended text table ETT, and requests the demux for data information of the filtering event information table EIT and the extended text table ETT. When the data information group arrives, the demux filters out the data information of the event information table EIT and the expansion text table ETT in TS (transport stream) digital streams respectively, and compares the data information with the information data of the event information table and the expansion text table in the list database. When the expanded text table ETT of the media resource item A is compared with the expanded text table ETT of the media resource item A in the list database, the CRC check fails, and the data information of the expanded text table ETT of the requested media resource item A is cached.

In addition, in some embodiments, the display device 200 also monitors the integrity of the collected event information table or the expanded text table when re-requesting the event information table and the expanded text table. That is, the display device 200 also monitors the detection progress of the event information table and the extended text table when caching the updated data information. And stopping requesting the data information group after the information data of the event information table and the expansion text table are detected. The display device 200 can reduce the problem of incomplete update of the program list in the display device 200 by monitoring the detection progress of the event information table and the extended text table.

S400: and analyzing the effective data information in the updated data information, and storing the effective data information into the list database.

After caching the update data in the above embodiments, the display apparatus 200 needs to store the update data in the list database for replacement to update the program list. Because one channel in the program list can support 180 event information tables EIT and extended text tables ETT, the formed data information is huge. Therefore, in order to reduce the occupation of the memory in the display device 200. The display device 200 also parses the update data to parse valid data information. The effective data information is effective data used by a program list. That is, the display apparatus 200 stores only information useful for the program list in the update data, reduces the occupation of the memory of the display apparatus 200, and increases the update speed of the program list.

After the program list database is updated, when the user invokes the program list, the display device 200 may directly read the data information stored in the list database to generate the program list. That is, in some embodiments, the data information stored in the listing database is read directly when the GUI (GRAPHICAL USER INTERFACE, graphical interface) of the display device 200 presents the program listings.

In addition, in order to increase the reading speed of the data information, in some embodiments, the display device 200 also detects the channel and time information to which the valid data information belongs. And then storing the effective data information into the list database according to the channel sequence and/or the time sequence in the channel and time information.

After the display apparatus 200 completes the update of the program list in the above embodiment, the user may query the program by inputting a program list query instruction to the display apparatus 200, displaying a program list interface in the display 260 of the display apparatus 200. The program list query instruction may include a target channel that the user wants to query and a time range of programs played by the target channel. For example, the user may call an EPG APP or InfoBar APP (information bar application) in the display device 200, and query program information in the respective channels in the EPG APP or InfoBar APP. Wherein, EPG APP can support 16 days show of program information, infoBar APP can support 8 hours show of program information. The EPG APP or InfoBar APP queries the program information after starting or receiving notification of the update of the underlying listing database.

Thus, in some embodiments, the display device 200 also obtains program listing query instructions for the target channel and queries the target channel and time range in response to the program listing query instructions. And then obtaining target data information in the list database through iteration, wherein the target data information is the data information in the time range in the target channel. The target data information is assembled into query result information, and the display 260 is controlled to display the query result information.

For example, after starting InfoBar APP application layers of display device 200, display device 200 then creates an iterator of the target channel and time range that need to be queried. As shown in fig. 11, the target channel is DC b for a time range of 9:00-14:00 on the same day. When the user queries the program information of DC b on the current day 9:00-14:00, the display device 200 notifies the thread for querying the list database to start asynchronous program information query, and the operation of the InfoBar APP application layer is not affected. And then reading data information of an event information table EIT and an expansion text table ETT from a list database, and inquiring corresponding program information according to the inquired target channel DC b and the time range of 9:00-14:00. When the corresponding program information is queried, the display device 200 assembles the data information, that is, after the event information table EIT and the extended text table ETT are assembled, the assembled data information is displayed at the application layer of the display 260, that is, the program list interface shown in fig. 11 is displayed in the display 260.

However, since program information can be provided in the program list, it is limited. Then the user may not be able to query the corresponding program when querying the program. Thus, in some embodiments, as shown in fig. 12, when the display apparatus 200 acquires the target data information from the list database through iteration, if the target data information does not exist in the list database, the display 260 is controlled to display the prompt information that the program list is not queried.

For example, the user queries the EPG APP application layer for program information of DC c9 for channel DC c in current day 9:00-14:00, the display device 200 creates an iterator for DC c9 for queried DC c in current day 9:00-14:00, and queries the listing database for corresponding program information. After the query, if the program information of DC c9 in the current day 9:00-14:00 is not found, the EPG APP application layer is informed that the query result is null. The display 260 displays a prompt message of "no program information" on the interface of the EPG.

In some embodiments, when a user queries program information in a program list, the display apparatus 200 zooms the current play screen to be displayed in a floating window on the display screen of the display apparatus 200. For example, the program picture being played by the display apparatus 200 is displayed on a floating window in a region of the lower right corner of the display screen, the lower left corner of the display screen, the upper left corner of the display screen, or the like. The played program picture is continuously displayed in the form of a floating window, so that a user can continuously watch the current program while inquiring the program.

For example, if the length of the display 260 is W1 (pixel), the playing frame may be scaled according to the scaling ratio a to form a floating window. The size of the floating window w2=w1×a. Then, the boundary point coordinates of the lower right corner of the display screen of the display 260 are used as the lower right corner coordinates of the floating window, the playing screen of the display device 200 is adjusted to the floating window with the corresponding screen size according to the scaling ratio A, and the floating window is put on the display screen of the display 260, and the display effect of the floating window is shown in fig. 6.

In addition, since the event information table and the data information of the expansion information table in the program list are updated frequently, for example, the EPG data is updated generally every three hours. Then, after a period of time, the list database has a lot of outdated program data information, which causes waste of system resources.

Thus, to reduce the occupancy of storage resources by outdated program data information in display device 200, in some embodiments display device 200 frequency-lock filters the transport stream of the data information. And then analyzing the current time point of the transport stream, and clearing the outdated data information in the list database according to the current time point. The expiration data information is data information of which the starting time of the event is earlier than the current time point.

For example: as shown in fig. 13. After the display device 200 is turned on, the EPG operating program is started. After the channel is played, the frequency is locked, STT data is filtered in the TS stream, and the STT data is data describing the current time in the TS stream. By acquiring the STT, the current time is parsed from the current TS stream. And then notifying a management module of the EPG list database to clear the data information of which the starting time of the event is earlier than the current time according to the analyzed current time so as to clear the expired data in the EPG.

And, the user may also update the channel during viewing of the program through the display device 200. In some embodiments, the display device 200 may increase or decrease channels in the program list by means of manual channel searching, automatic channel searching, or silent updating. When the program channel increases, the display apparatus 200 requests the server 400 for the event information table and the data information of the extended text table of the newly added channel to increase the program information of the channel corresponding to the channel in the program list.

For example: the user issues an instruction to automatically search channels to the display device 200 by operating the remote controller. The display device 200 automatically searches for television channel information in response to the automatic channel searching instruction. In the process of automatic channel searching, the display device 200 adds two channels, namely DC f and DC g, and deletes the original DC a channel, so that the user stops the automatic channel searching of the display device 200 through the remote controller. Then the channel list of the display device 200 is updated, i.e. the channel list will also add the newly added DC f channel and DC g channel.

After the channels of the display device 200 are updated, there are many data information of invalid channels in the list database. If the list database of the display device 200 is not cleaned, the storage space occupied by the list database will be larger and larger, and the waste of system resources will be caused.

In order to reduce the occupation of storage resources by data information of invalid channels in the display device 200, in some embodiments, the display device 200 also obtains a channel list of the display device 200 and detects updated information of the channel list. After the channel list is updated, traversing the channel information in the channel list. And deleting invalid information in the list database according to the channel information, wherein the invalid information is data information without corresponding channels. As shown in fig. 14, after the display device 200 performs automatic channel searching, manual channel searching, and silent updating, some channels are added or deleted in the display device 200. After detecting the channel list update, the display apparatus 200 traverses the channel information included in the channel list, and deletes EPG data information corresponding to channels that do not already exist.

For example: after the user manually searches the display device 200, the display device 200 adds two channels, DC f and DC g, and deletes the original DC a channel. The channel list of the display device 200 is updated accordingly, i.e. the channel list is added with the data information of two channels DC f and DC g. The display apparatus 200 traverses channel information in the channel list after detecting that the channel list is updated. In this process, since the channel DC a already does not exist in the display device 200, the data information of the channel DC a in the list database is deleted.

It should be noted that, when the display device 200 queries the program in the program list application layer, the query process is an asynchronous query operation, and the operation information of the user in the application layer is not affected.

Based on the above technical solution, in some embodiments, as shown in fig. 16, the architecture of the program list in the display device 200 includes: EPG APP, infoBar APP, EPG data storage module, EPG data monitoring module, EPG data collection module and Demux control module. The EPG APP can support 16 days, namely information display of 128 event information tables EIT and 128 expansion text tables ETT; infoBar APP may indicate 8 hours of program information presentation; the EPG data storage module is used for storing EPG data according to the time sequence of the channel and the program event in the form of a database; the EPG data monitoring module is used for monitoring the change of the MGT, and when the expansion text table ETT and the event information table EIT change, the EPG is informed to start the collection of the event information table EIT and the expansion text table ETT data; the EPG data collection module is used for requesting, analyzing and managing the ETT data of the event information table EIT and the expansion text table ETT; the Demux control module is used for filtering event information table EIT and expansion text table ETT data from TS digital stream.

Based on the above method for updating the program list, some embodiments of the present application further provide a display device 200, as shown in fig. 15, including: a display 260 and a controller 250. As shown in fig. 7, the controller 250 is configured to perform the following program steps:

s100: responding to a starting instruction of the display equipment, and requesting data information of an event information table and an expansion text table in a program list to generate a list database, wherein the data information comprises version information and description information of the event information table and the expansion text table;

s200: if the event information table and/or the data information of the expansion text table are changed, re-requesting the event information table and the data information of the expansion text table;

S300: caching updated data information, wherein the updated data information is data information different from the list database in the data information of the re-request;

S400: and analyzing the effective data information in the updated data information, and storing the effective data information into the list database, wherein the effective data information is effective data used by the program list.

As can be seen from the above technical solutions, the display device and the method for updating a program list provided by the present application can respond to a startup instruction of the display device 200 to request an event information table and an expansion text table in the program list so as to generate a list database. And if the event information table and/or the expansion text table are changed, re-requesting the event information table and the expansion text table. And then caching event information tables and/or expansion text tables which are different from the list database, and analyzing effective data used by the program list in the cached data. And storing the effective data into a list database, so that loading and updating of the event information table and the expansion text table are completed rapidly, and the user experience is improved.

The above-provided detailed description is merely a few examples under the general inventive concept and does not limit the scope of the present application. Any other embodiments which are extended according to the solution of the application without inventive effort fall within the scope of protection of the application for a person skilled in the art.

Claims

1. A display device, characterized by comprising:

a display;

a controller configured to:

2. The display device of claim 1, wherein the controller executing the re-request of the event information table and the data information of the expanded text table is configured to:

Counting the number of the event information tables, and analyzing characteristic elements of the event information tables, wherein the characteristic elements represent whether the current event comprises the expansion text table or not;

Counting the number of the expansion information tables according to the characteristic elements;

And grouping and requesting the event information table and the expansion text table according to the quantity of the event information table and the expansion information table so as to acquire a data information group.

3. The display device of claim 2, wherein the controller executing the cache update data information is configured to:

Detecting version information of the event information table and the expansion text table in the data information group respectively;

And if the version information is different from the version information in the list database, caching the data information of the event information table or the expansion text table currently.

4. The display device of claim 2, wherein the controller executing the cache update data information is configured to:

Monitoring the detection progress of the event information table and the expansion text table of the request;

And stopping requesting the data information group after the information data of the event information table and the expansion text table are detected.

5. The display device of claim 1, wherein the controller is further configured to:

acquiring a program list query instruction of a target channel;

responding to the program list inquiring instruction, and inquiring a target channel and a time range;

Obtaining target data information in the list database through iteration, wherein the target data information is the data information in the time range in the target channel;

And assembling the target data information into query result information, and controlling the display to display the query result information.

6. The display device of claim 5, wherein the controller is further configured to:

and if the target data information does not exist in the list database, controlling the display to display prompt information of the program list which is not queried.

7. The display device of claim 1, wherein the controller performs storing the valid data information into the list database configured to:

Detecting the channel and time information to which the effective data information belongs;

and storing the effective data information into the list database according to the channel sequence and/or the time sequence in the channel and time information.

8. The display device of claim 1, wherein after a channel is started, the controller is further configured to;

Frequency-locking filtering the transmission flow of the data information;

Analyzing the current time point of the transport stream;

And clearing out the expiration data information in the list database according to the current time point, wherein the expiration data information is the data information of which the starting time of the event is earlier than the current time point.

9. The display device of claim 1, wherein the controller is further configured to;

Acquiring a channel list and detecting update information of the channel list;

After the channel list is updated, traversing channel information in the channel list;

And deleting invalid information in the list database according to the channel information, wherein the invalid information is data information without corresponding channels.

10. A method for updating a program listing, comprising: