KR20060117482A - Method for play broadcasting signal of digital broadcasting system - Google Patents

Abstract

A method of reproducing a broadcasting signal of a digital broadcasting system is provided to receive and reproduce a digital broadcasting signal using a wired or wireless communication network in a shadow area. It is checked whether the receiving intensity of a digital broadcasting signal including no IP(Information Provider) information is smaller than a predetermined value while the digital broadcasting signal is received and reproduced(202,204). When the receiving intensity of the digital broadcasting signal is smaller than the predetermined value, a menu is displayed and receipt of the digital broadcasting signal using a wired or wireless communication network is inquired(206,208). When the receipt of the digital broadcasting signal using the wired or wireless communication network is selected, broadcasting information is transmitted through the wired or wireless communication network(210). The digital broadcasting signal is received and reproduced using the wired or wireless communication network according to the broadcasting information(214).

Description

Broadcast signal reproduction method of digital broadcasting system {METHOD FOR PLAY BROADCASTING SIGNAL OF DIGITAL BROADCASTING SYSTEM}

1 is a block diagram of a digital broadcast system suitable for receiving and reproducing digital broadcast signals by switching to wired and wireless communication networks according to the present invention;

2 is a flowchart illustrating a process of receiving and reproducing a digital broadcast signal by switching to a wired or wireless communication network in a digital broadcast system for receiving broadcast information not including IP information according to an embodiment of the present invention;

3 is a flowchart illustrating a process of receiving and reproducing a digital broadcast signal by switching to a wireless communication network in a digital broadcast system for receiving broadcast information including IP information according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: digital broadcasting system 100a: wired communication network

100b: wireless communication network 100c: internet

102: key input block 104: control block

106: Tuning and Demodulation Block 108: Demultiplexer Block

110: memory 112: menu creation block

114: decoding block

The present invention relates to a method for reproducing a broadcast signal in a digital broadcast system, and more particularly, to a digital broadcast system suitable for reproducing a broadcast signal using a wired or wireless communication network in a shaded area while playing a digital broadcast in a digital broadcast system. The present invention relates to a broadcast signal reproduction method.

As is well known, digital broadcasting includes digital terrestrial broadcasting, digital satellite broadcasting, and digital cable broadcasting, which digitally encodes a broadcast signal and transmits it to a satellite or terrestrial channel, which is viewed through a receiving device. Here, the receiving apparatus includes a digital broadcasting system such as a set top box and digital multimedia broadcasting (DMB).

In particular, in digital broadcasting systems such as DMB, digital terrestrial broadcasting or digital satellite broadcasting has a weak reception strength of digital broadcasting in shaded areas such as indoors and underground spaces, making it difficult to receive and reproduce digital broadcasting signals without receiving and playing errors. There was this.

In order to receive and play digital broadcast signals in such shaded areas, the digital broadcasting system uses a gap-filler, which serves as a relay for digital broadcasting signals, to compensate for weak reception strength, Receive and play broadcast signals. As an example, FIG. 4 is a diagram illustrating receiving a digital broadcast signal using a gap filler in a shaded area according to a conventional method.

However, in the conventional digital broadcasting system, the method of receiving and playing digital broadcasts using a gap filler for receiving and playing digital broadcast signals in shaded areas is performed in all shaded areas (eg, indoor, underground, subway, etc.). Etc.), it is inconvenient to use the digital broadcasting service by installing only a limited area and performing only the reception and reproduction of the digital broadcasting signal in the installed area because of the high cost of installing the gap filler.

Accordingly, the present invention is to solve the above problems of the prior art, the broadcast signal reproduction of the digital broadcast system that can perform the reception and playback of digital broadcast in the shadow area using a wired or wireless communication network in the digital broadcast system The purpose is to provide a method.

In addition, the present invention is to solve the problems of the prior art, a digital broadcast system that can reduce the cost of installing the gap filler by receiving and playing digital broadcast using a wired or wireless communication network in the digital broadcast system Its purpose is to provide a broadcast signal reproduction method.

In order to achieve the above object, the present invention provides a method of reproducing a digital broadcast signal received in a digital broadcasting system, wherein the reception strength of the digital broadcast is less than a predetermined value during the reception and reproduction of a digital broadcast including no IP information. The step of checking whether the digital broadcast is received, if the reception strength of the digital broadcast is less than a predetermined value, displaying a request for receiving the digital broadcast using a wired or wireless communication network, and receiving the digital broadcast using the wired or wireless communication network. When selected, switching to the wired or wireless communication network to transmit the broadcast information, and receiving and playing the digital broadcast using the wired or wireless communication network according to the broadcast information. A broadcast signal reproduction method is provided.

In order to achieve the above object, the present invention provides a method of reproducing a digital broadcast signal received in a digital broadcasting system, wherein the reception strength of the digital broadcast is higher than a predetermined value during the reception and reproduction of a digital broadcast including IP information. Checking whether it is small, if the reception strength of the digital broadcast is smaller than a predetermined value, displaying a request for reception of a digital broadcast using a wired or wireless communication network, and receiving a digital broadcast using the wired or wireless communication network. When selected, switching to the wired or wireless communication network to transmit user information and the broadcast information, and if the user information is appropriate, receiving and playing the digital broadcast according to the broadcast information. A method of reproducing a broadcast signal of a system is provided.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A key technical aspect of the present invention is that, unlike a conventional method of receiving and playing digital broadcasts using a gap filler for receiving and playing digital broadcasts in a shaded area in a digital broadcast system, IP information is included in the digital broadcast system. If the reception strength of the digital broadcast is less than a predetermined value while receiving and playing the digital broadcast, the digital broadcast signal is displayed, the reception of the digital broadcast using the wired or wireless communication network is requested, and the digital broadcast reception using the wired or wireless communication network is selected. In this case, after the user information and the broadcast information is switched to a wired or wireless communication network, if the user information is suitable, the digital broadcast is received and reproduced according to the broadcast information. Easy to achieve.

1 is a block diagram of a digital broadcasting system suitable for receiving and reproducing digital broadcast signals by switching to wired and wireless communication networks according to the present invention, wherein a key input block 102, a control block 104, a tuning and demodulation block are shown. Digital broadcast system 100, wired communication network 100a, wireless communication network 100b, and the Internet, including 106, demultiplexer block 108, memory 110, menu generation block 112, and decoding block 114. It consists of 100c.

Referring to FIG. 1, the key input block 102 generates an operation signal for controlling an operation of a digital broadcasting system, including a keypad, for example. Input means not shown by the user, for example, a keypad, etc. In response to inputting a key for selecting reception of a broadcast signal using a wired communication network or a wireless communication network, a selection operation signal is generated and transmitted to the control block 104 in response thereto.

The control block 104 performs overall operation control of the digital broadcasting system. The control block 104 tunes and demodulates a control signal for tuning and demodulating a broadcast signal of one of broadcast channels received through an antenna. And a control signal for separating the demodulated broadcast signal into a video signal, an audio signal, and data (for example, PSIP information, etc.) to the demultiplexer block 108, and decode the video and audio signal to illustrate it. A control signal for reproducing through the omitted monitor and speaker is provided to the decoding block 114, and the like.

In addition, the control block 104 stores data (for example, PSIP information) transmitted from the demultiplexer block 108 in the memory 110, and the reception strength is smaller than a predetermined value t during the reception and reproduction of the digital broadcast. In this case, a control signal for generating a menu screen indicating that the reception strength of the digital broadcast is weak is provided to the menu generation block 112, and at the same time, the menu screen for inquiring switching of the digital broadcast is sent to the menu generation block 112. It provides a control signal to the decoding block 114 for mixing with the video signal and displaying it on a monitor not shown. Here, t denotes a reception strength required for reproducing a digital broadcast signal to be received.

In the control block 104, when the user selects the reception switching of the digital broadcast using an input unit (not shown), for example, a keypad, in response to the selection operation signal provided from the key input block 102 in response thereto. Accordingly, the wired communication network 100a or the wireless communication network 100b is connected. Here, the wired communication network 100a is configured by connecting to a hub using a wired network such as a communication cable or a modem, and accessing the wireless communication network 100b using a wireless network such as Bluetooth, IrDA, or m wireless LAN. Configure by connecting to a pointer (Access Pointer).

In addition, in the control block 104, when broadcast information including IP information is received, user information (for example, a user account, a password, etc.) from the wired communication network 100a or the wireless communication network 100b connected to the Internet 100c. When a request is made to confirm, a control signal for generating a menu screen for inputting the same is provided to the menu generation block 112, and a control signal for displaying the generated menu screen is provided to the decoding block 114.

Accordingly, in the control block 104, when a user inputs user information using an input unit (not shown), for example, a keypad, information about the user is inputted through the wired communication network 100a or the wireless communication network 100b. 100c) and transmit. At the same time, PSIP information (for example, ETT, STT, EIT, etc.) of digital broadcasting stored in the memory 110 is extracted and connected to the Internet 100c through a wired communication network 100a or a wireless communication network 100b for transmission. do.

When the user information transmitted is appropriate, the control block 104 receives and reproduces the digital broadcast according to the PSIP information transmitted through the wired communication network 100a or the wireless communication network 100b and reproduces it through the decoding block 114. On the other hand, if the user information to be transmitted is not suitable to generate an menu screen for receiving and displaying and re-entering an error message transmitted through the wired communication network (100a) or the wireless communication network (100b), the control signal for displaying the menu To the generation block 112 and the decoding block 114.

Meanwhile, in the control block 104, when receiving broadcast information not including IP information, the PSIP information (for example, ETT, STT, EIT, etc.) of the digital broadcast stored in the memory 110 is extracted and the wired communication network 100a is extracted. Or the digital broadcast transmitted through the wired communication network 100a or the wireless communication network 100b according to the PSIP information, connected to the Internet 100c through the wireless communication network 100b, and transmitted through the decoding block 114. Play it.

Next, the tuning and demodulation block 106 tunes the broadcast signal of any one of the broadcast signals received through the antenna according to the control signal provided from the control block 104, demodulates it, and decodes it to the demultiplexer block 108. To pass.

The demultiplexer block 108 separates the demodulated broadcast signal into a video and audio signal and data (for example, PSIP information, etc.), and transmits the data to the control block 104 to store the data in the memory 110. And the audio signal is passed to the decoding block 114.

On the other hand, the memory 110 stores the PSIP information of the digital broadcast transmitted from the control block 104, and extracts the corresponding PSIP information of the digital broadcast in accordance with the control signal provided from the control block 104, the control block 104 ).

In addition, the menu generation block 112 generates a corresponding menu screen according to the control signal provided from the control block 104 and transmits the corresponding menu screen to the decoding block 114. The decoding block 114 transmits the menu screen to the video signal. Mix and display on a monitor not shown. In addition, the decoding block 114 decodes the video and audio signals transmitted from the demultiplexer block 108 and reproduces them through a monitor and a speaker (not shown).

Meanwhile, the wired communication network 100a is a wired connection to the Internet 100c including a communication cable, a modem, a hub, and the like. The wired communication network 100a transmits broadcast information from the digital broadcasting system 100, and transmits digital information from the Internet 100. The broadcast is transmitted to the digital broadcasting system 100.

In addition, the wireless communication network 100b wirelessly connects to the Internet 100c including Bluetooth, IrDA, a wireless LAN, an access pointer, and the like, transmits broadcast information from the digital broadcasting system 100, and transmits the Internet 100. Digital broadcast from the digital broadcast system 100.

Meanwhile, the digital broadcasting system 100 described above includes various communication modules, for example, a Bluetooth module, an IrDA module, a wireless LAN module, and the like, for data communication through the wired communication network 100a and the wireless communication network 100b. It is of course configured.

Next, in the digital broadcasting system having the above-described configuration, when the reception strength of the digital broadcasting received by receiving the broadcast information not including the IP information is weak, the wired and wireless communication networks are connected accordingly. A process of receiving and playing digital broadcasts according to the information will be described.

2 is a flowchart illustrating a process of receiving and reproducing a digital broadcast signal by switching to a wired or wireless communication network in a digital broadcasting system for receiving broadcast information not including IP information according to an embodiment of the present invention. .

Referring to FIG. 2, while receiving and playing digital broadcasting in the digital broadcasting system 100 that provides a streaming service using the Internet 100c and receives broadcast information that does not include IP information (step 202), The control block 104 checks whether the reception strength of the digital broadcast to be reproduced is smaller than the predetermined value t (step 204). Here, t denotes a reception strength required for reproducing a digital broadcast signal to be received.

As a result of the check in step 204, if the reception strength of the digital broadcast is less than the predetermined value t, the control block 104 provides a control signal for generating a menu screen displaying the same to the menu generation block 112, The menu screen is generated and transferred to the decoding block 114, and the generated menu screen is mixed with the video signal and displayed on a monitor not shown.

At the same time, the control block 104 provides a control signal for generating a menu screen for querying the reception switching of the digital broadcast to the menu generation block 112, generates a reception switching menu screen, and delivers it to the decoding block 114. The generated menu screen is mixed with the video signal and displayed on a monitor (not shown) (step 206). Here, the reception switching menu screen includes a wired communication network item and a wireless communication network item.

In addition, in the control block 104, when a user inputs a key for selecting reception switching of digital broadcasting by using an input unit (not shown), for example, a keypad, the reception generated from the key input block 102 in response thereto. Check if there is a switching operation signal (step 208).

As a result of the check in the step 208, when there is a reception switching operation signal, the control block 104 accordingly selects the wired communication network 100a to the wired communication network 100a by using the communication module when the wired communication network 100a is selected. ) Is connected to the wireless communication network 100b using the communication module (step 210). Here, the wired communication network 100a is configured by connecting to a hub or the like using a wired network such as a communication cable or a modem, and the access point using a wireless network such as Bluetooth, IrDA, or wireless LAN in the case of the wireless communication network 100b. Configure by connecting to (Access Pointer).

In addition, the control block 104 extracts broadcast information (for example, PSIP information including ETT, STT, EIT, etc.) for the digital broadcast being reproduced in the memory 110, and then extracts the broadcast information (wired communication network 100a) or a wireless communication network. In step 212, the mobile terminal 100 is connected to the Internet 100c via the network 100b and transmitted to the IP network providing the preset digital broadcasting streaming service (step 212).

Subsequently, by comparing broadcast information of a digital broadcast streaming service in the corresponding IP network and transmitting the broadcast signal for the corresponding digital broadcast through the wired communication network 100a or the wireless communication network 100b, the digital broadcasting system 100 receives the broadcast signal. The received digital broadcast signal is reproduced (step 214).

Therefore, when a digital broadcasting system that provides a streaming service using the Internet and receives broadcast information that does not include IP information has a weak reception strength of the digital broadcast being played, the digital broadcast is performed according to the broadcast information through a wired or wireless communication network. Can be received and played back.

Next, when the reception strength of the digital broadcast reproduced in the digital broadcast system receiving the broadcast information including the IP information is weak, after connecting the wired and wireless communication networks, the user information and the broadcast information are transmitted. The process of receiving and playing will be described.

3 is a flowchart illustrating a process of receiving and reproducing a digital broadcast signal by switching to a wireless communication network in a digital broadcast system receiving broadcast information including IP information according to another embodiment of the present invention.

Referring to FIG. 3, while receiving and playing digital broadcasts in the digital broadcasting system 100 that provides a streaming service using the Internet 100c and receives broadcast information including IP information (step 302), the control is performed. In block 104, it is checked whether the reception strength of the digital broadcast to be reproduced is smaller than a predetermined value t (step 304). Here, t denotes a reception strength required for reproducing a digital broadcast signal to be received.

As a result of the check in the step 304, if the reception strength of the digital broadcast is less than t, the control block 104 provides a control signal for generating a menu screen displaying this to the menu generation block 112, and such a menu. A screen is generated and transmitted to the decoding block 114, and the generated menu screen is mixed with the video signal and displayed on a monitor not shown.

At the same time, the control block 104 provides a control signal for generating a menu screen for querying the reception switching of the digital broadcast to the menu generation block 112, generates a reception switching menu screen, and delivers it to the decoding block 114. The generated menu screen is mixed with the video signal and displayed on a monitor (not shown) (step 306). Here, the reception switching menu screen includes a wired communication network item and a wireless communication network item.

In addition, in the control block 104, when a user inputs a key for selecting reception switching of digital broadcasting by using an input unit (not shown), for example, a keypad, the reception generated from the key input block 102 in response thereto. It is checked whether there is a switching operation signal (step 308).

As a result of the check in the step 308, when there is a reception switching operation signal, the control block 104 accordingly selects the wired communication network 100a to the wired communication network 100a using the communication module when the wired communication network 100a is selected. ) Is connected to the wireless communication network 100b using the communication module (step 310). Here, the wired communication network 100a is configured by connecting to a hub using a communication cable or the like, and the wireless communication network 100b is connected to an access pointer using an wireless network such as Bluetooth, IrDA, or wireless LAN. Connect and configure.

Next, the control block 104 extracts the IP information for the digital broadcast being reproduced in the memory 110 and connects the extracted IP information to the Internet 100c through the wired communication network 100a or the wireless communication network 100b. If the user accesses the corresponding IP network and inputs user information (for example, a password, etc.) according to a request for inputting user information from the corresponding IP network, it is confirmed that the user information is appropriate in the corresponding IP network (step). 312). Here, of course, if the input user information is not suitable, it is also possible to request re-entry or display an error message.

In addition, the control block 104 extracts broadcast information (for example, PSIP information including ETT, STT, EIT, etc.) for the digital broadcast being reproduced in the memory 110, and then extracts the broadcast information (wired communication network 100a) or a wireless communication network. The terminal 100 is connected to the Internet 100c via 100b and transmitted to the IP network providing the digital broadcasting streaming service (step 314).

Subsequently, by comparing broadcast information of a digital broadcast streaming service in the corresponding IP network and transmitting the broadcast signal for the corresponding digital broadcast through the wired communication network 100a or the wireless communication network 100b, the digital broadcasting system 100 receives the broadcast signal. The received digital broadcast signal is reproduced (step 316).

Therefore, when a digital broadcasting system that provides a streaming service using the Internet and receives broadcast information including IP information has a weak reception strength of a digital broadcast being played, digital broadcasting is performed according to the broadcast information through a wired or wireless communication network. Can be received and played back.

On the other hand, the present invention has been described as receiving and reproducing digital broadcast by switching to a wired or wireless communication network when the reception strength of the digital broadcast being reproduced is weak, but in the case of a wireless communication network, the digital broadcast whose reception strength of the access pointer is being reproduced. It is also possible to inquire of switching to a wired communication network or a wireless communication network when the reception strength is higher than that, thereby selectively receiving and playing digital broadcasts using the wireless communication network.

As described above, the present invention is different from the conventional method of receiving and playing digital broadcasts using a gap filler for receiving and playing digital broadcasts in a shaded area in the digital broadcast system. If the reception strength of the digital broadcast is less than a predetermined value while receiving and playing the digital broadcast, the digital broadcast signal is displayed, the reception of the digital broadcast using the wired or wireless communication network is requested, and the digital broadcast reception using the wired or wireless communication network is selected. When the user information and broadcast information are switched to a wired or wireless communication network, when the user information is appropriate, the digital broadcasting system may receive and reproduce the digital broadcast according to the broadcast information, so that the reception strength of the digital broadcast being reproduced in the digital broadcasting system may be weak. When using wired network or wireless network Receiving a digital broadcast, and can be reproduced.

Accordingly, by receiving and playing digital broadcasting using a wired or wireless communication network in a shaded area in a digital broadcasting system, the cost of installing a gap filler can be reduced, and user convenience in using a digital broadcasting system is enhanced. You can.

Claims (4)

A method of reproducing a digital broadcast signal received by a digital broadcast system, Checking whether the reception strength of the digital broadcast is less than a predetermined value while receiving and playing the digital broadcast including no IP information; If the reception strength of the digital broadcast is smaller than a predetermined value, displaying the request for receiving the digital broadcast using a wired or wireless communication network; When the digital broadcast reception using the wired or wireless communication network is selected, switching to the wired or wireless communication network to transmit the broadcast information; Receiving and playing the digital broadcast using the wired or wireless communication network according to the broadcast information Broadcast signal reproduction method of a digital broadcasting system comprising a. The method of claim 1, The broadcast information is a broadcast signal reproduction method of a digital broadcast system, characterized in that the PSIP information including ETT, STT, EIT. A method of reproducing a digital broadcast signal received by a digital broadcast system, Checking whether the reception strength of the digital broadcast is smaller than a predetermined value while receiving and playing the digital broadcast including the IP information; If the reception strength of the digital broadcast is smaller than a predetermined value, displaying the request for receiving the digital broadcast using a wired or wireless communication network; When the digital broadcast reception using the wired or wireless communication network is selected, switching to the wired or wireless communication network to transmit user information and the broadcast information; If the user information is appropriate, receiving and playing the digital broadcast according to the broadcast information. Broadcast signal reproduction method of a digital broadcasting system comprising a. The method of claim 3, wherein The broadcast information is a broadcast signal reproduction method of a digital broadcast system, characterized in that the PSIP information and IP information including the ETT, STT, EIT.

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