CN102368812A - Digital television and channel searching method thereof - Google Patents

Abstract

The invention discloses a digital television and a channel searching method thereof. The method comprises: searching for program information corresponding to the address according to the address of the place where the digital television is located; The package includes one or more of the following data: NIT, SDT, EIT, TOT. The digital TV and the channel searching method thereof provided by the present invention, after finding the required address, directly obtain the data packet of the program information corresponding to the address from the network server; By obtaining the data packet of the program information corresponding to the address, the TV program corresponding to the address can be played, thus greatly shortening the channel search time of the digital TV and improving the channel search efficiency.

Description

Digital TV and its Channel Searching Method

technical field

The invention relates to the technical field of television, in particular to a digital television and a channel searching method thereof.

Background technique

At present, there are mainly two ways to search channels for digital TV: one is full-frequency point search, which generally searches from low frequency to high frequency sequentially. The disadvantage of this search method is that it takes a long time to search channels, which generally takes about 20 minutes. The second is to use the network information table to quickly search for channels. The second method first performs frequency point locking, and then obtains PAT (Program Association Table, program association table) information through intermediate frequency amplification, filtering, etc., and obtains the required PMT (Program Map Table program mapping table) and PID (Packet IDdentifier, identification code transmission packet) information, and finally initialize the non-volatile random access memory to complete the channel search operation. This channel search method takes about 10 minutes.

At the same time, the above two methods of channel search are relatively passive. When the NIT (Network Information Table, Network Information Table) is modified or the frequency point is updated, it cannot be updated in time.

Contents of the invention

The main purpose of the present invention is to provide a digital TV and its channel searching method, so as to realize fast channel searching.

The present invention proposes a method for searching channels of a digital television, comprising steps:

Find the program information corresponding to the address according to the address of the place where the digital TV is located;

A data packet of the program information is obtained from a network server, and the data packet of the program information includes one or more of the following data: NIT, SDT, EIT, TOT.

Preferably, the channel search method further includes the steps of: reading the data in the data packet, presetting the relevant prefab bits, and storing the prefab data.

Preferably said channel search method also includes:

Obtain a web map from a web server;

Get the address information selected by the user from the web map.

Preferably, before obtaining the network map from the network server, include:

Establish a mapping relationship between each address and program information in the network map, and save the mapping relationship in a preset address-program information mapping relationship table;

The searching for the program information corresponding to the address information is specifically:

According to the address-program information mapping relationship table, the program information corresponding to the selected address is searched.

Preferably, the channel search method also includes:

The new program information corresponding to a certain address is received, and the program information corresponding to the address is updated to the new program information in the address-program information mapping relationship table.

The present invention also proposes a digital television, including:

A search module, configured to search for program information corresponding to the address according to the address where the digital TV is located;

The obtaining module is used to obtain the data packet of the program information from the network server, and the data packet of the program information includes one or more of the following data: NIT, SDT, EIT, TOT.

Preferably, the search module is also used for:

Obtain a web map from a web server, and obtain address information selected by the user from the web map.

Preferably, the digital TV also includes:

The mapping relationship maintenance module is used to establish the mapping relationship between each address and program information in the network map, and save the mapping relationship into a preset address-program information mapping relationship table;

The search module is further configured to search for the program information corresponding to the selected address according to the address-program information mapping relationship table.

Preferably, said digital TV also includes:

The update module is configured to receive new program information corresponding to a certain address, and update the program information corresponding to the address to the new program information in the address-program information mapping relationship table.

Preferably, the search module is specifically configured to send a network map acquisition request to the network server; and receive network map information fed back by the network server according to the network map acquisition request;

The acquisition module is specifically configured to send a program information acquisition request to the network server; and receive program information fed back by the network server according to the program information acquisition request.

Preferably, the digital TV also includes:

The prefabrication module is used to read the data in the data packet, prefabricate the relevant prefabrication bits, and store the prefabrication data.

The digital TV and the channel searching method thereof provided by the present invention, after finding the required address, directly obtain the data packet of the program information corresponding to the address from the network server; By obtaining the data packet of the program information corresponding to the address, the TV program corresponding to the address can be played, thus greatly shortening the channel search time of the digital TV and improving the channel search efficiency.

Description of drawings

Fig. 1 is the flow chart of the channel searching method of digital television in the first embodiment of the present invention;

FIG. 2 is a schematic diagram of the first structure of a digital television according to a second embodiment of the present invention;

Fig. 3 is a second structural schematic diagram of a digital television according to a second embodiment of the present invention;

4 is a schematic diagram of a third structure of a digital television according to a second embodiment of the present invention;

Fig. 5 is a schematic diagram of the fourth structure of the digital television according to the second embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a flow chart of a channel searching method for a digital TV according to the first embodiment of the present invention. The method for searching channels of the digital TV specifically includes:

Step S101, searching for program information corresponding to the address according to the address where the digital TV is located;

Step S102. Obtain the data packet of the program information from the network server, and the data packet of the program information includes one or more of the following data: NIT, SDT, EIT, TOT.

Further, in the method for searching channels of digital TV in the above-mentioned first embodiment, after obtaining the data packet of the program information from the network server, the following processing is also included: reading the data in the data packet, and The prefab location performs prefabrication and stores prefab data.

In the first embodiment above, the digital TV is connected to the network server through wireless access. After the digital TV obtains the data packet of the program information corresponding to the address information, the broadcast of the TV program at the address can be realized by prefabricating the prefabricated bit of the data in the data packet and receiving the signal line.

Furthermore, the channel searching method for digital TV in the first embodiment above further includes the following processing: obtaining a network map from a network server; receiving address information selected by the user from the network map.

Further, in the method for searching channels for digital TV in the first embodiment above, the acquiring the network map from the network server specifically includes the following processing: sending a network map acquisition request to the network server; receiving the network map acquisition request feedback from the network server according to the network map map information. The acquisition of the program information from the network server specifically includes the following processing: sending a program information acquisition request to the network server; receiving program information fed back by the network server according to the program information acquisition request.

Further, in the method for searching channels of digital TV in the above-mentioned first embodiment, before obtaining the network map from the network server, the following processing is included: establishing the mapping relationship between each address in the network map and program information, and saving the mapping relationship in the preset in the address-program information mapping table. Wherein, the searching for the program information corresponding to the address information specifically includes: searching for the program information corresponding to the selected address according to the address-program information mapping relationship table.

In the above-mentioned first embodiment, each address in the map is correspondingly provided with program information, by establishing a mapping relationship between each address in the map and program information, and maintaining the established mapping relationship in the address-program information maintained in the digital TV in the mapping table. When performing a station search operation, only a certain address is needed to obtain the program information corresponding to the address, which is more convenient to operate.

Further, in the above-mentioned method for searching channels of a digital TV in the first embodiment, when the program information of a certain address needs to be adjusted, the following processing is also included before obtaining the map from the network server: receiving the new program information corresponding to a certain address, And in the address-program information mapping relationship table, update the program information corresponding to the address with the new program information.

In the above-mentioned first embodiment, if the program information of a certain address changes, the user just wants to watch the TV program corresponding to the address, but the address-program information mapping relationship table maintained in the digital TV does not contain the program information corresponding to the address. Change, at this time, if you perform a channel search operation, you can only get the corresponding TV program in the program information before the address. Therefore, in order to be able to watch the TV program corresponding to the current program information of the address, it is necessary to modify the program information corresponding to the address in the address-program information mapping relationship table maintained in the digital TV. The new program information of the address can be manually input by the user through keys.

As can be seen from the above, the digital TV search method provided by the first embodiment, after finding the required address, directly obtains the data packet of the program information corresponding to the address from the network server; By analyzing the frequency point to obtain the data packet of the program information corresponding to the address, the TV program corresponding to the address can be played, thus greatly shortening the channel search time of digital TV and improving the channel search efficiency.

Referring to FIG. 2, FIG. 2 is a schematic diagram of a first structure of a digital television according to a second embodiment of the present invention. The digital TV 100 includes: a search module 110 and an acquisition module 120 . The search module 110 is configured to search for program information corresponding to the address according to the address of the place where the digital TV is located. Obtaining module 120, is used for obtaining the data package of described program information from network server place, and described program information data package comprises one or more in the following data: NIT (network information), SDT (Service Description Table, business description table), EIT (Event Information Table, event information table), TOT (time offset table).

Referring to FIG. 3 , FIG. 3 is a second structural diagram of a digital television according to a second embodiment of the present invention. The digital TV 100 also includes a prefabricated module 130 . The prefabrication module 130 is configured to read the data in the data packet, prefabricate the relevant prefabrication bits, and store the prefabrication data.

In the second embodiment above, the digital television 100 is connected to the network server through wireless access. After the digital TV 100 obtains the data packet of the program information corresponding to the address, it can realize the broadcasting of the TV program at the address by prefabricating the prefabricated bit of the data in the data packet and receiving the signal.

Further, in the above-mentioned digital television 100 of the second embodiment, the search module 110 is further configured to obtain a network map from a network server; and obtain address information selected by a user from the network map.

Further, in the digital TV 100 of the second embodiment above, the search module 110 is specifically configured to send a network map acquisition request to the network server; and receive network map information fed back by the network server according to the network map acquisition request. The acquisition module 120 is specifically configured to send a program information acquisition request to the network server; and receive program information fed back by the network server according to the program information acquisition request.

Referring to FIG. 4 , FIG. 4 is a schematic diagram of the third structure of the digital television according to the second embodiment of the present invention. The digital TV 100 also includes: a mapping relationship maintenance module 140 . The mapping relationship maintenance module 140 is used to establish a mapping relationship between addresses and program information in the network map, and save the mapping relationship into a preset address-program information mapping relationship table. Wherein, the searching module 110 is specifically further configured to search for the program information corresponding to the selected address according to the address-program information mapping relationship table.

In the above-mentioned second embodiment, each address in the map is correspondingly provided with program information, by establishing a mapping relationship between each address in the map and program information, and maintaining the established mapping relationship in the address-program information maintained in the digital TV in the mapping table. When performing a station search operation, one only needs to know a certain address of the digital TV 100 to obtain the program information corresponding to the address, which is more convenient to operate.

Referring to FIG. 5 , FIG. 5 is a schematic diagram of the fourth structure of the digital television according to the second embodiment of the present invention. The digital TV 100 also includes an updating module 150, configured to receive new program information corresponding to a certain address, and update the program information corresponding to the address to the new program information in the address-program information mapping table.

In the above-mentioned second embodiment, if the program information of a certain address changes, the user just wants to watch the TV program corresponding to the address, but the address-program information mapping relationship table maintained in the digital TV 100 does not correspond to the program information. If there is no change, if you perform a channel search operation at this time, you can only get the corresponding TV programs before the address. Therefore, in order to watch the TV program at the current address, it is necessary to modify the program information corresponding to the address in the address-program information mapping relationship table maintained in the digital TV 100 . The new program information of the address can be manually input by the user through keys.

It can be seen from the above that the digital TV 100 provided by the second embodiment, after finding the required address, directly obtains the data packet of the program information corresponding to the address from the network server; The frequency point obtains the data packet of the program information corresponding to the address, and then the TV program corresponding to the address can be played, thus greatly shortening the channel search time of the digital TV and improving the channel search efficiency.

The digital TV and its channel search method of the present invention are described below with a specific example: after the digital TV is connected to the network server through wireless access and access, the digital TV first sends a network map acquisition request to the network server, and the network server then The above request pushes the corresponding map information to the digital TV through the network; then the digital TV obtains the address information (such as Shekou, Shenzhen) selected by the user from the network map, and searches for the corresponding program information according to the selected address information. After finding the corresponding program information, send a data packet acquisition request of the program information to the network server, and the network server pushes the program information data packet corresponding to the address to the digital TV through the network according to the request, and the data packet includes some data in One or more of: NIT, SDT, EIT, TOT. After the digital TV obtains the data packet of the program information of the address, the prefabricated bit of the data in the data packet is prefabricated and connected to the signal line, so that the TV program corresponding to the address can be played, and the user can Select a TV program from the TV programs at the address to play.

In the above embodiment, the address information may be the address information selected by the user from the acquired network map by means of key input, or the address information directly input by the user by means of key keys. It can also be other than this specific embodiment, such as: the address information obtained by real-time positioning of the digital TV by a positioning device such as GPS.

It should be understood that the above are only preferred embodiments of the present invention, and cannot therefore limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in Other relevant technical fields are all equally included in the patent protection scope of the present invention.

Claims (11)

1. the channel search method of a DTV is characterized in that, comprises step:

According to the on-site address search of DTV and this address program information corresponding;

Obtain the packet of said programme information from the webserver, said program information data bag comprises one or more in the following data: NIT, SDT, EIT, TOT.

2. the channel search method of DTV according to claim 1 is characterized in that, said channel search method also comprises step: read the data in the said packet, relevant prefabricated position is carried out prefabricated, store prefabricated data.

3. the channel search method of DTV according to claim 2 is characterized in that, said channel search method also comprises:

Obtain network map from the webserver;

Obtain selected address information in the users from networks map.

4. the channel search method of DTV according to claim 3 is characterized in that, obtain network map from the webserver before, comprises:

Set up the mapping relations of each address and programme information in the network map, and these mapping relations are saved in preset address-programme information mapping relations table;

Said searching with the address information program information corresponding is specially:

According to address-programme information mapping relations table, search and selected address program information corresponding.

5. according to the channel search method of each described DTV of claim 1 to 4, it is characterized in that said channel search method also comprises:

Receive the corresponding new programme information in a certain address, and in address-programme information mapping relations table, this address program information corresponding is updated to said new programme information.

6. a DTV is characterized in that, comprising:

Search module, be used for according to the on-site address search of said DTV and this address program information corresponding;

Acquisition module is used for obtaining from the webserver packet of said programme information, and said program information data bag comprises one or more in the following data: NIT, SDT, EIT, TOT.

7. DTV according to claim 6 is characterized in that, the said module of searching also is used for:

Obtain network map from the webserver, and obtain selected address information in the users from networks map.

8. DTV according to claim 7 is characterized in that, also comprises:

The mapping relations maintenance module is used for setting up the mapping relations of each address of network map and programme information, and these mapping relations are saved in preset address-programme information mapping relations table;

The said module of searching specifically also is used for searching and selected address program information corresponding according to address-programme information mapping relations table.

9. according to each described DTV of claim 6 to 8, it is characterized in that, also comprise:

Update module is used to receive the corresponding new programme information in a certain address, and in address-programme information mapping relations table, this address program information corresponding is updated to said new programme information.

10. DTV according to claim 9 is characterized in that,

The said module of searching specifically is used for sending network map to the webserver and obtains request; And the reception webserver obtains the network map information of request feedback according to network map;

Said acquisition module specifically is used for sending programme information to the webserver and obtains request; And the reception webserver obtains the programme information of request feedback according to programme information.

11. DTV according to claim 6 is characterized in that, also comprises:

Prefabricated block is used for reading the data of said packet, relevant prefabricated position is carried out prefabricated, stores prefabricated data.

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