CN113573149B - Channel searching method and display device - Google Patents
Channel searching method and display device Download PDFInfo
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- CN113573149B CN113573149B CN202110912143.XA CN202110912143A CN113573149B CN 113573149 B CN113573149 B CN 113573149B CN 202110912143 A CN202110912143 A CN 202110912143A CN 113573149 B CN113573149 B CN 113573149B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
Abstract
The application discloses a channel searching method and display equipment, when channel searching is carried out, firstly, channel searching is carried out based on each frequency point in a frequency point list and a first broadcast version to obtain a first type of channel, and identifiers are added for the frequency points corresponding to the first type of channel; after the channel searching of the first broadcast version is completed, deleting the frequency points with identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels. Therefore, the method and the display device can skip the frequency points with the identifiers when the channel searching is performed based on the second broadcast version by marking the frequency points which have completed the channel searching of the first broadcast version, so that repeated searching of certain frequency points is avoided, the time of the channel searching of the second broadcast version is reduced, and the efficiency of the channel searching is improved.
Description
Technical Field
The present disclosure relates to the field of channel searching technologies, and in particular, to a channel searching method and a display device.
Background
With the rapid development of display devices, the functions of the display devices are more and more abundant and the performances of the display devices are more and more powerful, and currently, the display devices comprise smart televisions, mobile phones, refrigerators, other products with smart display screens and the like. When the display device is used as an intelligent television, a user can watch programs through various channels provided by the intelligent television.
The display device may be based on different digital terrestrial broadcast standards (ATSC), e.g., broadcast versions of ATSC1.0 and ATSC3.0, for providing different channels. The channels provided by the two broadcast versions are different, so that when the display device performs channel searching, the channel of the ATSC of one broadcast version needs to be completely searched based on the frequency point, and then the channel of the ATSC of the other broadcast version needs to be completely searched, wherein one frequency point corresponds to one channel.
Since the same frequency point does not have channels provided by two broadcasting versions ATSC at the same time, when the channels are searched, all channels of the two broadcasting versions ATSC are completely searched, so that the whole channel searching time is longer.
Disclosure of Invention
The application provides a channel searching method and display equipment, and aims to solve the problem that the searching time is long due to the existing channel searching method.
In a first aspect, the present application provides a display device, comprising:
a display configured to present a user interface;
a controller coupled to the display, the controller configured to:
responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels;
Performing channel searching based on each frequency point in the frequency point list and a first broadcast version to obtain a first type of channel, and adding identifiers for the frequency points corresponding to the first type of channel;
after the first broadcast version channel searching is completed, deleting the frequency points with the identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type channel.
In some embodiments of the present application, the controller, when performing the channel searching based on each frequency point in the frequency point list and the first broadcast version, obtains a first type of channel, is further configured to:
sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective or not;
if the target frequency point is effective, channel searching is carried out based on the target frequency point and a first broadcast version, and a first type channel is obtained;
and if the target frequency point is invalid, and after all frequency points in the frequency point list finish channel searching, determining that the first broadcast version channel searching is finished.
In some embodiments of the present application, the controller performs channel searching based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type of channel, and is further configured to:
Sequentially acquiring target frequency points in the new frequency point list, and judging whether the target frequency points complete a channel searching process or not;
if the target frequency point does not complete the channel searching process, channel searching is carried out based on the target frequency point and a second broadcast version to obtain a second type of channel, and the next target frequency point is obtained;
and if the target frequency point completes the channel searching process and all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcasting version is completed.
In some embodiments of the present application, the controller is further configured to:
generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version;
and when the original position of the frequency point with the identifier is obtained from the new frequency point list, skipping the channel searching process corresponding to the frequency point with the identifier, and displaying corresponding searching skipping information in a user interface.
In some embodiments of the present application, the controller is further configured to: after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
In a second aspect, the present application further provides a channel searching method, where the method includes:
responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels;
performing channel searching based on each frequency point in the frequency point list and a first broadcast version to obtain a first type of channel, and adding identifiers for the frequency points corresponding to the first type of channel;
after the first broadcast version channel searching is completed, deleting the frequency points with the identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type channel.
In some embodiments of the present application, the performing channel searching based on each frequency point in the frequency point list and the first broadcast version to obtain a first type of channel includes:
sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective or not;
if the target frequency point is effective, channel searching is carried out based on the target frequency point and a first broadcast version, and a first type channel is obtained;
and if the target frequency point is invalid, and after all frequency points in the frequency point list finish channel searching, determining that the first broadcast version channel searching is finished.
In some embodiments of the present application, the performing channel searching based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type of channel includes:
sequentially acquiring target frequency points in the new frequency point list, and judging whether the target frequency points complete a channel searching process or not;
if the target frequency point does not complete the channel searching process, channel searching is carried out based on the target frequency point and a second broadcast version to obtain a second type of channel, and the next target frequency point is obtained;
and if the target frequency point completes the channel searching process and all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcasting version is completed.
In some embodiments of the present application, the method further comprises:
generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version;
and when the original position of the frequency point with the identifier is obtained from the new frequency point list, skipping the channel searching process corresponding to the frequency point with the identifier, and displaying corresponding searching skipping information in a user interface.
In some embodiments of the present application, the method further comprises: after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
In a third aspect, the present application further provides a storage medium, where a program may be stored, where the program may implement some or all of the steps included in the embodiments of the channel searching method provided in the present application when executed.
As can be seen from the above technical solution, in the channel searching method and the display device provided by the embodiments of the present invention, when performing channel searching, channel searching is performed based on each frequency point in the frequency point list and the first broadcast version to obtain a first type of channel, and identifiers are added to frequency points corresponding to the first type of channel; after the channel searching of the first broadcast version is completed, deleting the frequency points with identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels. Therefore, the method and the display device can skip the frequency points with the identifiers when the channel searching is performed based on the second broadcast version by marking the frequency points which have completed the channel searching of the first broadcast version, so that repeated searching of certain frequency points is avoided, the time of the channel searching of the second broadcast version is reduced, and the efficiency of the channel searching is improved.
Drawings
In order to more clearly illustrate the technical solutions 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 illustrates a schematic diagram of an operational scenario between a display device and a control apparatus according to some embodiments;
fig. 2 shows a block diagram of a configuration of a control device 100 according to some embodiments;
fig. 3 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments;
FIG. 4 illustrates a software configuration diagram in a display device 200 according to some embodiments;
fig. 5 illustrates a flow chart of a channel searching method according to some embodiments;
FIG. 6 illustrates a data flow diagram for channel searching based on a first broadcast version, in accordance with some embodiments;
fig. 7 illustrates a data flow diagram for channel searching based on a second broadcast version, in accordance with some embodiments.
Detailed Description
For purposes of clarity and implementation of the present application, the following description will make clear and complete descriptions of exemplary implementations of the present application with reference to the accompanying drawings in which exemplary implementations of the present application are illustrated, it being apparent that the exemplary implementations described are only some, but not all, of the examples of the present application.
It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, 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 limiting a particular order or sequence, 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 illustrates a schematic diagram of an operational scenario between a display device and a control apparatus according to some embodiments. As shown in fig. 1, a user may 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 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 device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc.
In some embodiments, a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.) 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 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 device configured outside the display device 200 device.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be permitted to make communication connections via 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 device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.
Fig. 2 shows a block diagram of a configuration of the control apparatus 100 according to some embodiments. 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 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 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments. Referring to fig. 3, in some embodiments, the 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, a memory, a power supply, and a user interface.
In some embodiments the controller includes a 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 image signals from the controller output, for displaying video content, image content, and a menu manipulation interface, and for manipulating a UI interface by a user.
In some embodiments, the display 260 may be a liquid crystal display, an OLED display, 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. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, 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 user interface may be configured to receive control signals from the control device 100 (e.g., an infrared remote control, etc.).
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; alternatively, the detector 230 includes an image collector such as a camera, which may be used to collect external environmental scenes, user attributes, or user interaction gestures, or alternatively, the detector 230 includes a sound collector such as a microphone, or the like, 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, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.
In some embodiments, the modem 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, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.
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 controller includes at least one of a central processing unit (Central Processing Unit, CPU), video processor, audio processor, graphics processor (Graphics Processing Unit, GPU), RAM Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces 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 and video contents. The CPU processor may include a plurality of processors. Such as one main processor and one or more sub-processors.
In some embodiments, a graphics processor is used to generate various graphical objects, such as: icons, operation menus, user input instruction display graphics, and the like. The graphic processor comprises an arithmetic unit, which is used for receiving various interactive instructions input by a user to operate and displaying various objects according to display attributes; the device 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, perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image composition, etc., according to a standard codec protocol of an input signal, and may obtain a signal that is displayed or played on the directly displayable device 200.
In some embodiments, the video processor includes a demultiplexing module, a video decoding module, an image synthesis 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 demultiplexed video signal, including decoding, scaling and the like. And an image synthesis module, such as an image synthesizer, for performing superposition mixing processing on the graphic generator and the video image after the scaling processing according to the GUI signal input by the user or generated 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 video output signal to be in accordance with a display format, such as outputting RGB data signals.
In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the audio signal according to a standard codec protocol of an input signal, and perform noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in a speaker.
In some embodiments, a user may input a user command through 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 recognizes the sound or gesture through the sensor to receive the user input command.
In some embodiments, a "user interface" is a media interface for interaction and exchange of information between an application or operating system and a user that enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the user interface is a graphical user interface (Graphic User Interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.
In some embodiments, a system of display devices may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together form the basic operating system architecture that allows users to manage files, run programs, and use the system. After power-up, the kernel is started, the kernel space is activated, hardware is abstracted, hardware parameters are initialized, virtual memory, a scheduler, signal and inter-process communication (IPC) are operated and maintained. After the kernel is started, shell and user application programs are loaded again. The application program is compiled into machine code after being started to form a process.
Fig. 4 illustrates a software configuration diagram in a display device 200 according to some embodiments. As shown in fig. 4, the system of the display device 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; native applications (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).
Native applications (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.
In some embodiments, when the display device is used as a smart television, channels may be provided by the smart television so that a user can watch a corresponding program. To realize the channel provision, the display device needs to perform channel searching using the digital terrestrial broadcasting standard (ATSC). Digital terrestrial broadcast standards (ATSC) include different broadcast versions, e.g., ATSC1.0 version and ATSC3.0 version. The channels provided by the two broadcast versions are different, and the display device is compatible with the channels provided by the two broadcast versions.
The display equipment is configured with a frequency point list comprising a plurality of frequency points, wherein one frequency point corresponds to one channel, and the frequency points correspond to channel numbers. The signal frequencies corresponding to different frequency points are different, so that the channels searched by the different frequency points are different. For example, if the signal frequency corresponding to the ATSC1.0 version of the frequency point 13 is different from the signal frequency corresponding to the ATSC3.0 version of the frequency point 13, then the frequency point 13 can only search for the channel provided by the ATSC1.0 version or the ATSC3.0 version.
When the display equipment searches channels, the channels of the version ATSC1.0 are required to be completely searched based on frequency points, and the searched channels of the version ATSC1.0 are stored; and then searching the channel of the version of ATSC3.0 completely, and storing the searched channel of the version of ATSC 3.0.
Since the same frequency point does not have channels provided by two ATSC broadcast versions at the same time, after the ATSC1.0 version channel search is completed, the frequency point of the channel which is already searched by the ATSC1.0 version is not filtered in the ATSC3.0 version channel search, so that each frequency point can be detected one by one again by the ATSC3.0 version, and the time of searching the whole channel is longer due to repeated frequency point searches.
Therefore, in order to improve the channel searching efficiency, the display device provided by the embodiment of the invention sets the frequency point of the searched channel as the frequency point of the ATSC1.0 standard when searching the channel of the ATSC1.0 standard. When the ATSC3.0 system channel is searched, the ATSC1.0 system frequency point is skipped, and the time for searching the ATSC3.0 system channel is greatly reduced.
Fig. 5 illustrates a flow chart of a channel searching method according to some embodiments. The display device provided by the embodiment of the invention comprises: a display configured to present a user interface; a controller coupled to the display, the controller being configured to perform the following steps when performing the channel searching method shown in fig. 5:
s1, responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels.
When the user operates the display device to search channels, the remote controller can be operated to select and start the channel searching function configured by the display device, and channel searching instructions are synchronously generated.
Based on the channel searching instruction, a frequency point list for presenting a plurality of channels is obtained, wherein the frequency point list comprises a plurality of frequency points, and one frequency point corresponds to one channel. And simultaneously, acquiring the first broadcast version and the second broadcast version to perform channel searching, and searching corresponding channels based on each frequency point.
The first broadcast version may be an ATSC1.0 format version and the second broadcast version may be an ATSC3.0 format version. The different channels provided by the first broadcast version (ATSC 1.0 format version) have different signal frequencies, and the different channels provided by the second broadcast version (ATSC 3.0 format version) have different signal frequencies.
S2, searching channels based on each frequency point in the frequency point list and the first broadcast version to obtain a first type of channels, and adding identifiers for the frequency points corresponding to the first type of channels.
The second broadcast version is a version updated based on the first broadcast version, and thus, when a channel search is performed, a channel search is generally performed based on a low version of ATSC.
Therefore, the channel searching can be performed based on each frequency point in the frequency point list and the first broadcast version, that is, the signal frequency corresponding to each frequency point is compared with the signal frequency corresponding to each channel provided by the first broadcast version, if the signal frequency consistent in comparison exists, the corresponding first type channel can be obtained for the frequency point corresponding to the signal frequency.
The first type of channels refer to channels provided by a first broadcast version (ATSC 1.0 standard), and if a plurality of frequency points exist in the frequency point list and search for corresponding first type of channels in the first broadcast version, a plurality of first type of channels can be obtained. One frequency point corresponds to one signal frequency and corresponds to one first type of channel, and the three correspond to each other one by one.
Fig. 6 illustrates a data flow diagram for channel searching based on a first broadcast version, in accordance with some embodiments. In some embodiments, referring to fig. 6, in performing the channel search based on the first broadcast version, the controller, when performing the channel search based on the respective frequency points in the frequency point list and the first broadcast version, obtains a first type of channel, is further configured to perform the steps of:
and 21, sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective.
And step 22, if the target frequency point is effective, searching channels based on the target frequency point and the first broadcast version to obtain a first type of channels.
Step 23, if the target frequency point is invalid, and after all frequency points in the frequency point list complete the channel searching, determining that the channel searching of the first broadcast version is completed.
When the channel searching is performed based on the first broadcast version, the channel searching may be sequentially performed based on each frequency point in the frequency point list. The frequency points in the frequency point list are sequentially arranged according to the sequence from small to large of the signal frequency, the signal frequency of the first frequency point is minimum, and the signal frequency of the last frequency point is maximum.
First, a first frequency point is acquired, and whether the first frequency point is effective or not is judged. Effectively refers to whether the signal frequency of the frequency bin exceeds a frequency range, which is used to characterize the signal frequency threshold of the searchable channel.
In some embodiments, the frequency range may be set to 57MHz to 803MHz. If the frequency point list is 1-50 frequency points, which is equivalent to 50 channels, 57MHz is the minimum signal frequency, and corresponds to the first frequency point, which is equivalent to the signal frequency corresponding to the channel with the channel number of 1; 803MHz is the maximum signal frequency, corresponds to the last frequency point, and corresponds to the signal frequency corresponding to the channel with the channel number of 50.
If the first frequency bin is valid, it is indicated that the frequency bin is within a signal frequency threshold (frequency range) for the channels that can be searched, and therefore, a channel search can be performed based on the first frequency bin and the first broadcast version.
And comparing the signal frequency of the first frequency point with the signal frequency of each channel provided by the first broadcast version during searching. If the signal frequencies which are consistent in comparison exist, the searched channels are determined, and the corresponding first type channels are obtained. If any signal frequency contrast is not consistent, the fact that the channel is not searched is indicated, the next frequency point in the frequency point list is acquired, and the process is continuously executed.
After searching the channels based on the first broadcast version, the channels of the frequency point are indicated to belong to the first broadcast version, and the channels of the second broadcast version can not exist any more. Therefore, in order to avoid the frequency point from being searched again in the channel searching process of the second broadcast version, an identifier can be configured for the frequency point, so that the channel searching process of the frequency point can be skipped in the searching process of the second broadcast version, repeated searching is avoided, and the searching efficiency is improved.
When searching the channel provided by the first broadcast version for each frequency point in the frequency point list based on the method, if some frequency points can be matched with the corresponding first type channel, adding an identifier for the frequency point corresponding to the first type channel, and marking the type frequency point as ATSC1.0 standard. The identifier is used for indicating that the channel corresponding to the frequency point is from a first type of channel provided by the first broadcast version, and indicating that the frequency point has completed channel searching.
For example, in a certain frequency point list, if three frequency points 13, 15, and 17 are ATSC1.0 signals, after the ATSC1.0 standard channel search is started, a corresponding first type channel a is searched for the frequency point 13, a corresponding first type channel B is searched for the frequency point 15, and a corresponding first type channel C is searched for the frequency point 17. At this time, identifiers are added to the frequency points 13, 15, 17, respectively, to mark the frequency points 13, 15, 17 as ATSC1.0 system.
In some embodiments, if a target frequency point obtained from the frequency point list is invalid, it is indicated that the target frequency point may not be within a signal frequency threshold (frequency range) of the searchable channels, that is, the signal frequency of the target frequency point exceeds the frequency range. Accordingly, it can be further judged whether the first broadcast version channel searching process is completed.
Since the signal frequency of a certain frequency point exceeds the frequency range, the signal frequency may be caused by accidental situations, such as signal abnormality. Therefore, to accurately determine whether the first broadcast version channel searching process is completed, it may be determined by determining whether the currently invalid target frequency point number is the maximum frequency point number in the frequency point list. If the invalid target frequency point sequence number is not the maximum frequency point sequence number, determining that the first broadcast version channel search is not completed, and acquiring the next frequency point to continue executing the process; if the invalid target frequency point sequence number is the maximum frequency point sequence number, the first broadcast version channel searching is determined to be completed.
For example, if the frequency point list includes 50 frequency points, when a certain frequency point is acquired, the frequency point is invalid because the frequency of the signal exceeds the frequency range. Then, the target frequency point number is further obtained to be 48, and is not the maximum frequency point number 50, it can be determined that the first broadcast version channel searching process is not completed yet, and the next frequency point can be obtained continuously to execute the above process. If the target frequency point number is 50, which is the maximum frequency point number 50, it may be determined that the first broadcast version channel search is completed, and the second broadcast version channel search process may be started.
And S3, deleting the frequency points with the identifiers in the frequency point list after the channel searching of the first broadcast version is completed, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels.
Fig. 7 illustrates a data flow diagram for channel searching based on a second broadcast version, in accordance with some embodiments. Referring to fig. 7, after the first broadcast version (ATSC 1.0 system) channel searching process is completed, a corresponding channel may be continuously searched for the remaining frequency points in the frequency point list based on the second broadcast version (ATSC 3.0 system).
Since when the channel search of the first broadcast version is performed, if some frequency points in the frequency point list are matched with the first type of broadcast provided by the first broadcast version, identifiers are added for the corresponding frequency points. Therefore, to avoid repeatedly searching for the frequency points having been matched with the first type of channel when the channel search is performed based on the second broadcast version, the frequency points having the identifier in the frequency point list may be acquired first, read out and deleted, or the frequency points having the identifier may be skipped when the channel search is performed, and the repeated search process is not performed.
For example, when searching for the channel of the second broadcast version (ATSC 3.0 standard), the frequency point identifier in the channel searching process of the first broadcast version is obtained first, that is, the frequency point marked by the ATSC1.0 standard is obtained. If the acquired frequency bins 13, 15, 17 are identified, no channels of the ATSC3.0 signal are simultaneously present since these frequency bins already have channels of the ATSC1.0 signal. Therefore, the frequency point marked as the ATSC1.0 system is removed from the ATSC3.0 frequency point list, namely, the 3 frequency points of 13, 15 and 17 are not searched any more in the current ATSC3.0 system channel searching, so that the channel searching time is shortened, and the channel searching efficiency is improved.
In some embodiments, the second broadcast version channel searching process may further use a method of skipping the frequency points with the identifiers, deleting the frequency points with the identifiers, generating a new frequency point list, and then executing the second broadcast version channel searching process to obtain the second type of channels. The frequency points in the new frequency point list are all frequency points of an ATSC3.0 system, and the second type of channels refer to channels provided by a second broadcast version (ATSC 3.0 system). One frequency point corresponds to one signal frequency and corresponds to one second type of channel, and the three correspond to each other one by one.
In some embodiments, in performing the channel search based on the second broadcast version, the controller is further configured to perform the following steps when performing the channel search based on the respective frequency points in the obtained new frequency point list and the second broadcast version to obtain the second type of channel:
Step 31, sequentially obtaining the target frequency points in the new frequency point list, and judging whether the target frequency points complete the channel searching process.
And step 32, if the target frequency point does not complete the channel searching process, carrying out channel searching based on the target frequency point and the second broadcast version to obtain a second type of channel, and obtaining the next target frequency point.
Step 33, if the target frequency point completes the channel searching process, and after all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcast version is completed.
When the channel searching is performed based on the second broadcast version, the channel searching may be sequentially performed based on each frequency point in the new frequency point list. Each frequency point in the new frequency point list is orderly arranged according to the sequence from small to large of the signal frequency, the signal frequency of the first frequency point is minimum, and the signal frequency of the last frequency point is maximum. Since the frequency points with the identifiers are deleted or skipped in the new frequency point list, the serial numbers of the frequency points in the new frequency point list are not continuous.
First, a first frequency point in a new frequency point list is acquired, and whether the first frequency point completes a channel searching process is judged. The process of completing the channel searching refers to the second type of channels with matched corresponding frequency points. If a certain frequency point is matched with the second type of channel, the frequency point is indicated to finish the second broadcast version channel searching process, and the channel searching process is not executed for the frequency point any more in order to avoid repeated searching.
If the frequency point does not complete the channel searching process, the frequency point is not executed with the channel searching process of the second broadcasting version, so that the channel searching can be performed based on the target frequency point and the second broadcasting version to obtain the second type of channels.
And comparing the signal frequency of the frequency point with the signal frequency of each channel provided by the second broadcast version during searching. If the signal frequencies which are consistent in comparison exist, the channel which is searched is determined, and a corresponding second type of channel is obtained. After the current frequency point completes the channel searching, the next frequency point in the new frequency point list is acquired, and the process is continuously executed until all the frequency points in the new frequency point list search the corresponding second type channel.
If the frequency point has completed the channel searching process, it is further determined whether the second broadcast version channel searching process is completed or not to determine whether to end the channel searching process. Therefore, to accurately determine whether the first broadcast version channel searching process is completed, it may be determined by determining whether the target frequency point number of the currently completed frequency point is the maximum frequency point number in the new frequency point list. If the completed target frequency point sequence number is not the maximum frequency point sequence number, determining that the second broadcast version channel search is not completed, and acquiring the next frequency point to continue the process; if the completed target frequency point number is the maximum frequency point number, it may be determined that the second broadcast version channel search is completed.
For example, if the new frequency point list includes 50 frequency points, when a certain frequency point is acquired, it is determined that the frequency point has completed the channel searching process. Then, the target frequency point number is further obtained to be 48, and is not the maximum frequency point number 50, it can be determined that the second broadcast version channel searching process is not completed yet, and the next frequency point can be obtained continuously to execute the above process. If the target frequency point number is 50, which is the maximum frequency point number 50, it can be determined that the second broadcast version channel search is completed.
In some embodiments, after completion of the second broadcast version channel search process, the completion status flag is restored, at which point the controller is further configured to: after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
Upon completion of the second broadcast version channel searching procedure, it is explained that the current complete channel searching procedure of the display apparatus is completed. Therefore, to avoid affecting the next channel searching process, after the second broadcast version channel searching process is completed, the identifiers added to some frequency points in the process of executing the first broadcast version channel searching process may be cleared, so that each frequency point in the frequency point list is restored to an initial state, where each frequency point does not have an identifier.
In some embodiments, when the display device performs channel searching, frequency point searching information can be correspondingly displayed on the display from the user interface. For example, when a channel search is performed based on the first broadcast version, a search result of the ATSC1.0 system frequency point may be displayed. When the channel searching is performed based on the second broadcast version, the frequency point of the channel with the ATSC1.0 standard is skipped, so that the searching result of the frequency point with the ATSC1.0 standard can be not displayed any more, and only the searching result of the frequency point with the ATSC3.0 standard can be displayed.
In some embodiments, when the channel searching is performed based on the second broadcast version, a better experience is brought to the user, and a corresponding prompt can be given to the user when the skip is performed. At this time, the controller is further configured to perform the steps of:
step 41, generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version.
Step 42, skipping the channel searching process corresponding to the frequency point with the identifier when the original position of the frequency point with the identifier is obtained from the new frequency point list, and displaying the corresponding searching skipping information in the user interface.
When the channel search is performed based on the second broadcast version, it is the home location point of the identified point is acquired, and search skip information, such as "ATSC1.0 point-index-skip", is generated based on the identified point.
The home position of the frequency point with the identifier is the position of the frequency point with the identifier when the frequency point is acquired based on the original frequency point list. For example, in the original frequency bin list, if the three frequency bins 13, 15, and 17 are ATSC1.0 signals, the identifiers are provided. Then there are no three bins 13, 15, 17 in the new bin list. However, when the second broadcast version channel searching process is executed, if the frequency point 12 is acquired, the next frequency point 13 should be acquired, but because the frequency point 13 does not exist, the search skip information is displayed at the position where the frequency point 13 should be acquired, so that the channel searching process for representing the frequency point 13 is skipped and is not executed.
After the frequency point 14 is continuously acquired, the search result corresponding to the frequency point 14 can be displayed again; when the frequency point 15 is obtained, the search skip information corresponding to the frequency point 15 is displayed, and so on.
When the display device executes the channel searching, the channel searching is firstly performed based on the ATSC1.0 standard, and if a certain frequency point can search the channel, an identifier is set for the frequency point to represent that the frequency point has completed the channel searching. After all channels of the ATSC1.0 system are searched, channel searching is performed based on the ATSC3.0 system. At this time, the frequency point list is checked for one time, the frequency point with the identifier is removed, a new frequency point list is generated, and then the channel searching is carried out according to the new frequency point list, so that the channel searching efficiency is improved.
As can be seen from the above technical solution, in the display device provided by the embodiment of the present invention, when performing channel searching, channel searching is performed based on each frequency point in the frequency point list and the first broadcast version, so as to obtain a first type of channel, and identifiers are added for frequency points corresponding to the first type of channel; after the channel searching of the first broadcast version is completed, deleting the frequency points with identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels. Therefore, the display device can skip the frequency points with the identifiers when the channel searching is performed based on the second broadcast version by marking the frequency points which have completed the channel searching of the first broadcast version, so that repeated searching of certain frequency points is avoided, the time of the channel searching of the second broadcast version is reduced, and the efficiency of the channel searching is improved.
Fig. 5 illustrates a flow chart of a channel searching method according to some embodiments. Referring to fig. 5, the present application further provides a channel searching method, which is performed by the controller in the display device provided in the foregoing embodiment, the method including:
s1, responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels;
S2, carrying out channel searching based on each frequency point in the frequency point list and a first broadcast version to obtain a first type of channel, and adding identifiers for the frequency points corresponding to the first type of channel;
and S3, deleting the frequency points with the identifiers in the frequency point list after the channel searching of the first broadcast version is completed, and searching the channels based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels.
In some embodiments of the present application, the performing channel searching based on each frequency point in the frequency point list and the first broadcast version to obtain a first type of channel includes:
sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective or not;
if the target frequency point is effective, channel searching is carried out based on the target frequency point and a first broadcast version, and a first type channel is obtained;
and if the target frequency point is invalid, and after all frequency points in the frequency point list finish channel searching, determining that the first broadcast version channel searching is finished.
In some embodiments of the present application, the performing channel searching based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type of channel includes:
Sequentially acquiring target frequency points in the new frequency point list, and judging whether the target frequency points complete a channel searching process or not;
if the target frequency point does not complete the channel searching process, channel searching is carried out based on the target frequency point and a second broadcast version to obtain a second type of channel, and the next target frequency point is obtained;
and if the target frequency point completes the channel searching process and all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcasting version is completed.
In some embodiments of the present application, the method further comprises:
generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version;
and when the original position of the frequency point with the identifier is obtained from the new frequency point list, skipping the channel searching process corresponding to the frequency point with the identifier, and displaying corresponding searching skipping information in a user interface.
In some embodiments of the present application, the method further comprises: after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
As can be seen from the above technical solution, in the channel searching method and the display device provided by the embodiments of the present invention, when performing channel searching, channel searching is performed based on each frequency point in the frequency point list and the first broadcast version to obtain a first type of channel, and identifiers are added to frequency points corresponding to the first type of channel; after the channel searching of the first broadcast version is completed, deleting the frequency points with identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channels. Therefore, the method and the display device can skip the frequency points with the identifiers when the channel searching is performed based on the second broadcast version by marking the frequency points which have completed the channel searching of the first broadcast version, so that repeated searching of certain frequency points is avoided, the time of the channel searching of the second broadcast version is reduced, and the efficiency of the channel searching is improved.
In a specific implementation, the present invention further provides a storage medium, where the storage medium may store a program, where the program may include some or all of the steps in each embodiment of the channel searching method provided by the present invention when the program is executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a random-access memory (random access memory, RAM), or the like.
It will be apparent to those skilled in the art that the techniques of embodiments of the present invention may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied essentially or in parts contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc.
The same or similar parts between the various embodiments in this specification are referred to each other. In particular, for the channel searching method embodiment, since it is substantially similar to the display device embodiment, the description is relatively simple, and the relevant points are referred to the description in the display device embodiment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions 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 illustrative 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 (10)
1. A display device, characterized by comprising:
a display configured to present a user interface;
a controller coupled to the display, the controller configured to:
responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels;
performing channel searching based on each frequency point in the frequency point list and a first broadcast version to obtain a first type of channel, and adding identifiers for the frequency points corresponding to the first type of channel;
after the first broadcast version channel searching is completed, deleting the frequency points with the identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type channel.
2. The display device of claim 1, wherein the controller, upon performing the channel search based on the respective frequency points in the frequency point list and the first broadcast version, obtains a first type of channel, is further configured to:
sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective or not;
if the target frequency point is effective, channel searching is carried out based on the target frequency point and a first broadcast version, and a first type channel is obtained;
and if the target frequency point is invalid, and after all frequency points in the frequency point list finish channel searching, determining that the first broadcast version channel searching is finished.
3. The display device of claim 1, wherein the controller, upon performing the channel search based on the respective frequency points in the obtained new frequency point list and the second broadcast version, obtains a second type of channel, is further configured to:
sequentially acquiring target frequency points in the new frequency point list, and judging whether the target frequency points complete a channel searching process or not;
if the target frequency point does not complete the channel searching process, channel searching is carried out based on the target frequency point and a second broadcast version to obtain a second type of channel, and the next target frequency point is obtained;
And if the target frequency point completes the channel searching process and all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcasting version is completed.
4. A display device according to claim 3, wherein the controller is further configured to:
generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version;
and when the original position of the frequency point with the identifier is obtained from the new frequency point list, skipping the channel searching process corresponding to the frequency point with the identifier, and displaying corresponding searching skipping information in a user interface.
5. A display device according to claim 3, wherein the controller is further configured to:
after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
6. A method for channel searching, the method comprising:
responding to a channel searching instruction, acquiring a first broadcast version and a second broadcast version for providing channels, and presenting a frequency point list of a plurality of channels;
Performing channel searching based on each frequency point in the frequency point list and a first broadcast version to obtain a first type of channel, and adding identifiers for the frequency points corresponding to the first type of channel;
after the first broadcast version channel searching is completed, deleting the frequency points with the identifiers in the frequency point list, and searching the channel based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain a second type channel.
7. The method of claim 6, wherein the performing a channel search based on each frequency point in the frequency point list and the first broadcast version to obtain the first type of channel comprises:
sequentially acquiring target frequency points in the frequency point list, and judging whether the target frequency points are effective or not;
if the target frequency point is effective, channel searching is carried out based on the target frequency point and a first broadcast version, and a first type channel is obtained;
and if the target frequency point is invalid, and after all frequency points in the frequency point list finish channel searching, determining that the first broadcast version channel searching is finished.
8. The method of claim 6, wherein the performing the channel search based on each frequency point in the obtained new frequency point list and the second broadcast version to obtain the second type of channel comprises:
Sequentially acquiring target frequency points in the new frequency point list, and judging whether the target frequency points complete a channel searching process or not;
if the target frequency point does not complete the channel searching process, channel searching is carried out based on the target frequency point and a second broadcast version to obtain a second type of channel, and the next target frequency point is obtained;
and if the target frequency point completes the channel searching process and all frequency points in the new frequency point list complete the channel searching, determining that the channel searching of the second broadcasting version is completed.
9. The method of claim 8, wherein the method further comprises:
generating search skip information based on the frequency point with the identifier when the channel search is performed based on the second broadcast version;
and when the original position of the frequency point with the identifier is obtained from the new frequency point list, skipping the channel searching process corresponding to the frequency point with the identifier, and displaying corresponding searching skipping information in a user interface.
10. The method of claim 8, wherein the method further comprises:
after the second broadcast version channel searching is completed, the identifier of each frequency point in the frequency point list is cleared, and the frequency point list is restored to an initial state.
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| PCT/CN2022/111526 WO2023016499A1 (en) | 2021-08-10 | 2022-08-10 | Method for searching for channels and display device |
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