KR101314598B1 - Method for receiving digital broadcasting programme, and digital broadcasting terminal using the same - Google Patents

Abstract

A digital broadcast reception method for receiving a digital broadcast signal from a digital broadcast center, and a digital broadcast terminal for implementing the same, comprising: receiving a request for receiving digital broadcast; And playing the preliminary content on the condition that the signal strength of the digital broadcast is less than a predetermined level.

According to the present invention, it is not only possible to provide preliminarily prepared contents while the digital broadcasting signal is weak and cannot be normally received, but also to provide the same program as the corresponding digital broadcasting program in a shaded area of the digital broadcasting signal. It can be provided by using.

Digital broadcasting

Description

TECHNICAL FOR RECEIVING DIGITAL BROADCASTING PROGRAMME, AND DIGITAL BROADCASTING TERMINAL USING THE SAME}

1 is a network diagram of a digital broadcasting terminal according to an embodiment of the present invention.

2 is a block diagram of a digital broadcasting terminal according to an embodiment of the present invention.

3 is a flowchart of a digital broadcast receiving method according to an embodiment of the present invention.

FIG. 4 is a flowchart showing step A (step S200) in FIG. 3 in detail.

FIG. 5 is a flow chart showing in detail the step B (step S300) in FIG.

FIG. 6 is a flowchart showing step C (step S400) in FIG. 3 in detail; FIG.

7 is an example of a preliminary content reproduction screen in a digital broadcast reception method according to an embodiment of the present invention.

The present invention relates to a digital broadcast reception method and a digital broadcast terminal for implementing the same, and more particularly, to a digital broadcast reception method for receiving a digital broadcast signal from a digital broadcast center and a digital broadcast terminal for implementing the same.

In general, when a digital broadcasting receiver receives a digital broadcasting signal transmitted by a digital broadcasting center, a shaded area in which the digital broadcasting signal is not well received may occur. For example, in an area such as an underground shopping mall, a tunnel, an underground parking lot, or an area where a repeater is not installed, the broadcast signal may be uneven or the broadcast reception may not be possible at all because the broadcast signal is extremely weak.

In particular, when a digital broadcasting receiver is attached to a vehicle or mounted on a mobile communication terminal, the receiver may move and enter a shaded area while receiving the broadcast normally. The broadcast screen may be interrupted in the middle of reception, and then may be received normally.

When broadcast reception becomes virtually impossible as described above, the weak broadcast signal is generally output as it is or is replaced by a black screen, which is maintained until the broadcast signal is normally received. Therefore, the viewer should listen to the distorted sound while watching the distorted screen or the black screen until normal broadcast reception is resumed. In this process, the viewer feels frustrated and irritated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and only when the digital broadcast signal is weak and cannot be normally received, a digital broadcast reception method capable of providing preliminarily prepared content and a digital for implementing the same The purpose is to provide a broadcast terminal.

It is still another object of the present invention to provide a digital broadcast receiving method capable of providing the same program as a corresponding digital broadcast program using a wireless communication network in a shaded region of a digital broadcast signal, and a digital broadcasting terminal for implementing the same.

The present invention can be applied to receiving a plurality of digital broadcasts such as satellite DMB, terrestrial DMB, DVB-H, MediaFLO, etc., but the present invention is not limited to such a broadcast method.

In order to achieve the above object, a digital broadcast receiving method according to the present invention comprises the steps of: receiving a request for receiving digital broadcasting; And playing the preliminary content on the condition that the signal strength of the digital broadcast is less than a predetermined level.

According to the present invention, the request for receiving the digital broadcast relates to a specific channel, and the reproducing of the preliminary content may be performed under the condition that the signal strength of all channels of the digital broadcast is less than a predetermined level.

According to the present invention, the type of the preliminary content may correspond to preliminary content setting information stored in advance.

According to the present invention, the preliminary content may be received through a wireless communication network.

According to the present invention, the preliminary content is searched by on-air broadcasting of the same channel as the reception request, the last broadcast page of the same program as the reception request, and a search word related to the same program as the reception request. It may be one or more of the search result pages.

According to the present invention, the reproducing of the preliminary content may be performed under the condition that the user's approval for the reproducing is received.

According to the present invention, the preliminary content may be one of an analog television broadcasting channel and an analog radio broadcasting channel.

According to the present invention, before the step of playing the preliminary content, if the signal strength of the digital broadcast is a predetermined level or more, recording or recording the digital broadcast and storing as a file, wherein the preliminary content, The file may be.

According to the present invention, the playing of the file may include playing the file from a time point requested by the user during the entire playing time.

According to the present invention, the preliminary content may be one or more of a function of a digital broadcasting terminal including a game function, a camera function, and a music playback function.

According to the present invention, after the step of playing the preliminary content, detecting the signal strength of the digital broadcast; And when the signal strength of the digital broadcast is higher than or equal to a predetermined level, stopping the reproduction of the preliminary content and receiving and displaying the digital broadcast.

According to the present invention, when the preliminary content is played back, the fact that it is a spare content can be displayed.

According to another aspect of the invention, the digital broadcast receiving unit for receiving a digital broadcast signal from the digital broadcast center; And a controller configured to play the preliminary content on the condition that the signal strength of the digital broadcast is less than a predetermined level.

According to the present invention, the apparatus may further include a memory unit in which the spare content setting information is stored, and the type of the spare content may correspond to the spare content setting information.

According to the present invention, the wireless communication unit may further include a wireless communication unit for data communication through a wireless communication network, and the preliminary content may be received by the wireless communication unit.

According to the invention, it further comprises an analog broadcast receiver for receiving an analog television broadcast signal and an analog radio broadcast signal, wherein the preliminary content may be one or more of the channels received by the analog broadcast receiver.

According to the present invention, the apparatus further includes a memory unit, and when the signal strength of the digital broadcast is greater than or equal to a predetermined level, the digital broadcast is recorded or recorded and stored in the memory unit as a file, and the preliminary content is the file. Can be.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a diagram illustrating a network configuration of a digital broadcasting terminal according to an embodiment of the present invention. Referring to the drawings, the digital broadcasting terminal 100 of the present invention is associated with a digital broadcasting center 200.1 through a digital broadcasting network, is connected with a broadcasting server 200.2 through a mobile communication network, and is analog broadcasting through an analog broadcasting network. It is associated with the center 200.3.

The digital broadcasting terminal 100 is a terminal for receiving a broadcast signal from the digital broadcasting center 200.1 through a digital broadcasting network, and a detailed description thereof will be described later with reference to FIG. 2.

The digital broadcasting center 200.1 is a center for transmitting broadcast signals in a digital manner. The digital broadcasting center 200.1 may be multiple. One digital broadcasting center 200.1 includes a video channel for providing moving image content, an audio channel for providing voice content, and a data channel for providing data.

The broadcast server 200.2 is a server that provides on-air broadcasting through a mobile communication network through a streaming method, and provides a past broadcast page through a mobile communication network. Here, on-air broadcasting refers to providing a program identical to a channel currently transmitted by the digital broadcasting center 200.1 or the analog broadcasting center 200.3 through a mobile communication network in real time. The last broadcast page is a page that provides a list of programs and programs previously transmitted through the digital broadcasting center 200.1 or the analog broadcasting center 200.3 through a mobile communication network. Meanwhile, the broadcast server 200.2 may be a search engine for searching for information about a broadcast program.

The analog broadcasting center 200.3 is a center for transmitting a television channel or a radio channel through an analog broadcasting network.

2 is a block diagram of a digital broadcasting terminal according to an embodiment of the present invention. Referring to FIG. 2, the controller 110 includes a digital broadcast receiver 120, a wireless communication unit 130, an analog broadcast receiver 140, a memory unit 150, an input unit 160, and an output unit 170. . Each component will be described in the order listed above, but the control unit 110 will be described after the input unit 160 is described.

The digital broadcast receiver 120 receives a digital broadcast signal from a digital broadcast center through a digital broadcast network. As described above, the digital broadcast may be a video channel, an audio channel, or a data channel. The digital broadcast receiver 120 may receive a digital broadcast signal corresponding to the request when the digital broadcast reception request is received through the input unit 160, that is, when the user presses a digital broadcast start button. have. If the strength of the digital broadcast signal is less than a predetermined level, the digital broadcast receiver 120 transmits a signal to the controller 110.

The wireless communication unit 130 receives a search result page searched for on-air broadcasts, past broadcast pages, and search terms related to digital broadcasts from the broadcast server 200.2 through a wireless communication network.

The analog broadcast receiver 140 receives an analog television broadcast channel or an analog radio broadcast channel from an analog broadcast center through an analog broadcast network.

The memory unit 150 is a storage device that stores spare content setting information. Here, the preliminary content refers to a content prepared to replace a program of a corresponding channel when the reception of a specific channel requested by a user or all channels is practically impossible among a plurality of channels received through digital broadcasting. The type of the preliminary content may include an on-air broadcast received through the wireless communication unit 130, a previous broadcast page, and a search result page searched for a search word related to digital broadcast. It may be an analog television broadcast channel or an analog radio broadcast channel received through a file, or may be a file stored in the memory unit 150 or a specific function of a digital broadcasting terminal.

Meanwhile, the spare content setting information refers to information regarding which type of spare content is to be preferentially provided among various types of spare content. The preliminary content setting information may be information set by a user or information set by the digital broadcasting terminal 100 itself. The preliminary content setting information includes types of preliminary contents by rank (eg, first-order preliminary contents-on-air broadcasting of the same channel, second-order preliminary contents-search result pages of the same program).

Meanwhile, when the type of the spare content is included in the spare content setting information, the mapping table for access information (eg, URL) of the on-air broadcast for each digital broadcasting channel (eg CH: 14) is stored in the memory. It is preferably stored in the unit 150. On the other hand, when the type of the preliminary content includes the 'last broadcast page', a mapping table for access information (for example, URL) of the last broadcast page for each digital broadcasting program (eg YTN news) is stored in the memory unit 150. In addition, when the search result page is included in the type of the preliminary content, the search engine access information and the search word for each digital broadcasting program are preferably stored in the memory unit 150. Do. Here, the search word for each broadcast program may be received through the digital broadcast receiver 120. On the other hand, when the type of the preliminary content includes the 'analog broadcast channel', a mapping table about the frequency information of the analog television (or radio) broadcast channel for each digital broadcast channel (CH: 14) is stored in the memory unit 150. It is preferably stored. Finally, when the type of the preliminary content includes the 'file stored in the memory unit 150,' the content received by the digital broadcasting receiver 120, a file recorded and stored by recording (including a data file in the case of a data channel, It is preferable that the electronic program guide (EPG) is stored in the memory unit 150, and when the type of the preliminary content includes the 'specific function of the digital broadcasting terminal', the game program, the music file, etc. together with the function-specific menu. It is preferably stored in the memory unit 150.

The input unit 160 is an input device for inputting a request for receiving digital broadcasting. The receive request may be for a particular channel.

The controller 110 reproduces the preliminary content on the condition that the signal strength of the digital broadcast received by the digital broadcast receiver 120 is less than a predetermined level. Here, the digital broadcast may be a channel or a program requested to be received by the input unit 160. Meanwhile, when the controller 110 plays the spare content, the controller 110 may refer to the spare content setting information stored in the memory unit 150. The preliminary content setting information is a type of preliminary content by rank as described above. Is stored, the control unit 110 refers to the mapping table stored in the memory unit 150, and first attempts to receive the digital broadcast channel (eg, CH: l4) received by the digital broadcasting receiver 120. Inquiry on the access information (URL) of the on-air broadcasting of the same channel as), and accesses to the broadcast server 200.2 through the wireless communication unit 130 using the same. If there is no information on the on-air broadcasting corresponding to the first rank or access to the broadcast server 200.2 is not possible, the search engine access information and the keyword of the program are searched to provide the preliminary contents corresponding to the second rank. After that, the mobile station requests the search result for the keyword through the wireless communication unit 130 using the search engine.

The output unit 170 is an output device in which a broadcast signal is reproduced by the digital broadcast receiver 120, and may include a display unit 172 and a speaker unit 174. If the signal strength of the digital broadcast is less than a predetermined level, the preliminary content may be reproduced through the output unit 170 by the controller 110.

3 is a flowchart of a digital broadcast reception method according to an embodiment of the present invention. Referring to FIG. 3, first, when a user inputs a command related to a digital broadcast reception request such as turning on a digital broadcasting terminal, executing a digital broadcasting function, or changing a channel of a digital broadcasting, The broadcast terminal receives the request for receiving the digital broadcast (step S110).

Then, the digital broadcasting terminal checks whether the signal strength of the channel (eg, CH: 14) received in step S110 is less than a predetermined level (step S120). If the signal strength of the corresponding channel is greater than or equal to the predetermined level (NO in step S120), that is, if sufficient strength is received to receive and display the corresponding channel, the signal strength is sufficient. The digital broadcast of the channel is received and output (step S130).

If, as a result of the check in step S120, if the signal strength of the corresponding channel is less than a predetermined level (YES in step S120), the signal strength of all channels other than the channel requested in step S110 is also checked (step S140). If the signal strength of at least one channel among other channels is greater than or equal to a predetermined level as a result of checking in step S140, while one of the channels is sufficient while the signal strength is sufficient (step S150).

If, as a result of checking in step S140, the signal strength of all channels is less than the predetermined level (YES in step S140), the digital broadcasting terminal inquires the stored preliminary content setting information (step S160).

As a result of inquiring in step S160, when the preliminary content is related to the wireless communication network (YES in step S170), that is, when the preliminary content is one or more of the on-air broadcast, the last broadcast page, and the search result page, the step S200 is performed. The preliminary contents are executed to provide the corresponding preliminary contents, which will be described later with reference to FIG. 4. As a result of inquiring in step S160, when the preliminary content is related to the analog broadcast (YES in step S180), the step S300 is executed to provide the corresponding preliminary content. It will be described later. As a result of inquiring in step S160, when the preliminary content is not related to the wireless communication network or the analog broadcast (NO in step S180), the step S400 is executed to provide the corresponding preliminary content. 6 will be described later.

As one or more of steps S200, S300, and S400 are performed to provide preliminary content, the digital broadcasting terminal is requested to be received at step S110 as the signal strength increases due to the shadow area or other factors. If the signal strength of the channel is greater than or equal to a predetermined level (No in step S510), the digital broadcast of the channel requested in step S110 is received and output (step S520).

As a result of determining in step S510, when the state of the signal strength of the corresponding digital broadcasting channel is continuously maintained (YES in step S510), the preliminary content played in steps S200, S300 and S400 is continuously played. In step S530.

As described above, in the digital broadcasting reception method according to the present invention, spare content is played instead of the digital broadcast channel through the above process. I will explain each.

FIG. 4 is a flowchart showing step A (step S200) in FIG. 3 in detail. Step S200 is a detailed step of providing preliminary content when the preliminary content is related to the wireless communication network as a result of the inquiry in step S160. Referring to FIG. 4, first, a user may request approval for accessing a broadcast server through a wireless communication network (S210). This is particularly useful when the cost of data services over a wireless communication network is high. If the user approves access to the wireless communication network (step S220), and as a result of checking in step S160, when the type of the preliminary content is on-air broadcasting (YES in step S230), the channel requested in step S110 Access information (eg, URL) of the on-air broadcast corresponding to the same channel as (eg, CH: 14) is inquired (step S232). Then, using the access information inquired in step S232 is connected to the corresponding on-air broadcasting of the broadcast server through the wireless communication network (step S234). In step S234, the connected on-air broadcast is received and output by a streaming method or the like (step S236). Thus, an example of the output of the preliminary contents (on air broadcasting) instead of the digital broadcasting is shown in FIG. 7. As shown in Fig. 7, when the spare content is played back, it is preferable to display the fact that the screen being played is the spare content.

Referring back to FIG. 4, the following steps will be described. On the other hand, as a result of inquiring in step S160, if the type of the preliminary content is the last broadcast page (YES in step S240), and access information of the last broadcast page of the same program as the program of the channel requested in step S110 (Step S242). The last broadcast page of the program is accessed through the wireless communication network using the access information inquired in step S242 (step S244). The last broadcast page may be a list of past broadcasts for each broadcast episode, and the list of past broadcasts may be linked to access information of each past broadcast content. If one of several past broadcasts is selected by the user, the selected last broadcast is received and output (step S246).

On the other hand, if the search result in step S160, the type of the preliminary content is not on-air broadcasting or the last broadcast page (No in step S240), that is, if the search results page, the search term and the search engine of the program Search the access information of (S252). Then, a request is made to the search engine using the information inquired in step S252 (step S254). When the requested search result is received, the search result page is displayed (step S256).

FIG. 5 is a flow chart showing in detail the step B (step S300) in FIG. Step S300 is a detailed flowchart when the preliminary content is related to the analog broadcast as a result of the inquiry in step S160. First, in step S110, a frequency (eg, 91.9 KHz) of an analog television (or radio) channel of the same channel as the digital broadcast channel received is inquired (step S310). Then, tuning is performed using the frequency inquired in step S310 (step S320). An analog television (or radio) channel is received and output using the tuned frequency (step S330).

FIG. 6 is a detailed flowchart illustrating step C (step S400) of FIG. 3. Step S400 is a detailed step of providing spare content when the spare content is not related to a wireless communication network or an analog broadcast. Referring to FIG. 6, first, it is inquired whether there is a file stored in a digital broadcasting terminal (S410). Here, the file may be a recorded or recorded file (including a data file in the case of a data channel, including an electronic program guide (EPG)) while the signal strength of the digital broadcast received in step S110 is greater than or equal to a predetermined level. As a result of the inquiry in step S410, if the file is stored (YES in step S410), the file can be played from the point in time requested by the user during the entire playback time (step S420). In this case, the so-called time machine function can be implemented. On the other hand, if the stored file does not exist (No in step S410) or the preliminary content is not a stored file, it executes a specific function of all the functions of the digital broadcasting terminal. Here, the function of the digital broadcasting terminal may be a concept including a game function, a camera function, a music playing function, and the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

According to one aspect of the present invention, even if the signal strength of the digital broadcast is provided because the content is preliminarily prepared, the user can enjoy a variety of content in the shadow area, and bored until the digital broadcast reception resumes normally I can wait not to.

According to another aspect of the present invention, since the original digital broadcast can be normally viewed again without a separate operation while leaving the shaded area of the digital broadcast, the digital broadcast is conveniently used even when crossing the range and the normal reception area. You can watch it.

According to another aspect of the present invention, even if a program cannot be viewed through a digital broadcast channel, it is possible to conveniently watch the same program (on air broadcast) automatically through another route such as wireless Internet or an analog broadcast channel. In addition, you can watch past broadcasts (watch again, listen again).

According to another aspect of the present invention, when a program cannot be viewed through a digital broadcasting channel, since the recorded or recorded file can be played from a desired time point, the user can use the time in the shaded area. The program can be provided with the time machine function.

According to another aspect of the present invention, since the preliminary content is provided according to the ranking set by the user in advance, the user can use a function that he / she usually enjoys using the time in the shadow area of the digital broadcast.

Claims (18)

Receiving a request for receiving a digital broadcast on a specific channel; Playing preliminary content if the signal strength of all channels of the digital broadcast is less than the strength for receiving and displaying the digital broadcast; And Recording or recording and storing the digital broadcast in the form of a file when the signal strength of the digital broadcast is equal to or greater than the strength for receiving and displaying the digital broadcast before playing the preliminary content. The preliminary content includes the stored file. The method of claim 1, The reproducing of the preliminary content may include reproducing the preliminary content when a user's request for reproduction of the preliminary content is received when the signal strength of all channels except for the specific channel is greater than or equal to the strength for receiving and displaying the digital broadcast. Digital broadcast reception method to play. The method of claim 1, The type of the spare content corresponds to the pre-stored preliminary content setting information. The method of claim 1, The preliminary content includes a content received through a wireless communication network. delete 5. The method of claim 4, The reproducing of the preliminary content may include playing the preliminary content when the user's approval for the reproducing is received. The method of claim 1, The preliminary content includes at least one of an analog television broadcast channel and an analog radio broadcast channel. delete delete delete The method of claim 1, After playing the preliminary content, Sensing signal strength of the digital broadcast; And If the signal strength of the digital broadcast is equal to or greater than the strength for receiving and displaying the digital broadcast, stopping the reproduction of the preliminary content and receiving and displaying the digital broadcast; Digital broadcast receiving method further comprising. delete A memory unit; An input unit which receives a request for receiving digital broadcast on a specific channel; A digital broadcast receiver for receiving a digital broadcast signal from a digital broadcast center according to the reception request; And And a control unit for reproducing preliminary content if the signal strength of all channels of the digital broadcast is less than the strength for receiving and displaying the digital broadcast. If the signal strength of the digital broadcast is greater than the strength for receiving and displaying the digital broadcast before playing the preliminary content, the controller records or records the digital broadcast and stores it as a file in the memory unit. And the preliminary content includes the stored file. 14. The method of claim 13, And a memory unit in which preliminary content setting information is stored. The type of the spare content corresponds to the preliminary content setting information. 14. The method of claim 13, Further comprising: a wireless communication unit for performing data communication through a wireless communication network, The preliminary content includes a content received by the wireless communication unit. 14. The method of claim 13, And an analog broadcast receiver for receiving an analog television broadcast signal and an analog radio broadcast signal. The preliminary content includes a broadcast channel received by the analog broadcast receiver. delete 14. The method of claim 13, And the controller is configured to play the preliminary content when a user's request for reproduction of the preliminary content is received when the signal strength of all channels except the specific channel is greater than or equal to the strength for receiving and displaying the digital broadcast.

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