KR101191190B1 - Digital Broadcasting Terminal Supporting Multiple Digital Broadcast Specification And Method Of Acquiring Channel Information Using Same - Google Patents

Abstract

The present invention relates to a digital broadcast receiver supporting multiple digital broadcast standards and a method of obtaining channel information using the same. The present invention provides a broadcast signal receiving unit capable of receiving respective digital broadcast signals according to two or more digital broadcast standards including a first broadcast standard and a second broadcast standard; And a control unit which acquires channel information on digital broadcasting according to the second broadcasting standard during the reception of the digital broadcasting according to the first broadcasting standard through the broadcasting signal receiving unit. A receiver and a method of obtaining channel information using the same are provided.

Therefore, according to the present invention, there is an advantage in that channel information for digital broadcasting according to a second broadcasting standard different from the first broadcasting standard is acquired while receiving digital broadcasting according to the first broadcasting standard.

Digital broadcasting, broadcasting standard, channel information

Description

Digital Broadcasting Terminal Supporting Multiple Digital Broadcast Specification And Method Of Acquiring Channel Information Using Same}

1 is a block diagram of a digital broadcast receiver according to a preferred embodiment of the present invention.

2 is a flowchart of a method for obtaining channel information according to a preferred embodiment of the present invention.

3 is an embodiment of a method for acquiring channel information of an S-DMB while receiving a T-DMB according to the present invention.

Figure 4 is an embodiment of a method for obtaining channel information of a T-DMB during S-DMB reception according to the present invention.

The present invention relates to digital broadcasting, and more particularly, to receive digital channel information on digital broadcasting according to a second broadcasting standard different from the first broadcasting standard while receiving digital broadcasting according to the first broadcasting standard. A digital broadcast receiver supporting a broadcast standard and a channel information acquisition method using the same.

In order for a user to watch a digital broadcast using a digital broadcast receiver, channel information must be retrieved. For example, in the case of Satellite Digital Multimedia Broadcasting (S-DMB), channel information periodically received through a pilot channel is received, and the user selects a specific channel and broadcasts it. You will watch. In addition, in case of terrestrial digital multimedia broadcasting (T-DMB) or digital video broadcating-handheld (DVB-H), channel information should be searched for each channel block to watch a broadcast. Since T-DMB and DVB-H use channel blocks, the broadcast information that can be received may change as the area moves, so channel information must be updated.

Meanwhile, a single digital broadcast receiver may be used to receive digital broadcasts according to two or more digital broadcast standards. For example, one digital broadcast receiver can receive both T-DMB and S-DMB.

In a digital broadcast receiver that simultaneously supports the multiple digital broadcast standards (for example, the first broadcast standard and the second broadcast standard), the viewing of the digital broadcast according to the first broadcast standard is terminated and the digital according to the second broadcast standard is terminated. In order to watch a broadcast, it is inconvenient to newly search for channel information on digital broadcasting according to the second broadcast standard. In particular, when it is necessary to urgently receive digital broadcasting according to the second broadcasting standard, or when there is a local movement, the above inconvenience is increased.

The present invention has been proposed to solve the above problems, and the present invention provides a channel for digital broadcasting according to the second broadcasting standard, which is a broadcasting standard different from the first broadcasting standard during the reception of the digital broadcasting according to the first broadcasting standard. An object of the present invention is to provide a digital broadcast receiver supporting multiple digital broadcast standards for acquiring information and a method for acquiring channel information using the same.

Another object of the present invention is to obtain digital information according to the first broadcasting standard and digital broadcasting according to the second broadcasting standard by acquiring channel information on digital broadcasting according to the second broadcasting standard while receiving digital broadcasting according to the first broadcasting standard. The present invention provides a digital broadcast receiver that supports multiple digital broadcast standards that can dramatically reduce or eliminate time wasted in retrieving channel information, and a channel information acquisition method using the same.

Still another object of the present invention is to provide a digital broadcast receiver that supports multiple digital broadcasting standards that can automatically update channel information without the user having to manually search for channel information about digital broadcasting according to a specific broadcasting standard. It provides a channel information acquisition method used.

As an aspect of the present invention for achieving the above object, the method for obtaining channel information according to the present invention includes a second broadcast standard which is a broadcast standard different from the first broadcast standard during reception of digital broadcast according to the first broadcast standard. It is characterized in that for obtaining the channel information for digital broadcasting according to.

Here, the channel information acquisition method according to the present invention, (a) receiving a digital broadcast according to the first broadcast standard; (b) acquiring channel information on digital broadcasting according to the second broadcasting standard while receiving digital broadcasting according to the first broadcasting standard; And (c) storing the obtained channel information.

As another aspect of the present invention for achieving the above object, the digital broadcast receiver supporting the multiple digital broadcast standard according to the present invention, in the digital broadcast receiver supporting at least two or more digital broadcast standards, the first broadcast standard and A broadcast signal receiving unit capable of receiving respective digital broadcast signals according to the two or more digital broadcast standards including a second broadcast standard; And a control unit which acquires channel information on digital broadcasting according to the second broadcasting standard during reception of the digital broadcasting according to the first broadcasting standard through the broadcasting signal receiving unit.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like numbers refer to like elements throughout. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Examples of the digital broadcasting standard mentioned in the present invention include European Digital Audio Broadcasting (DAB) based on Eureka-147 [ETSI EN 300 401], Digital Video Broadcasting-Handheld (DVB-H), and Qualcomm, USA. Media FLO (Forward Link Only) and Korea's Digital Multimedia Broadcasting (DMB). Korea's DMB includes Terrestrial Digital Multimedia Broadcasting (T-DMB) based on Eureka-147 and Satellite Digital Multimedia Broadcasting (S-DMB) using satellite communication. Detailed description of each digital broadcasting standard will be omitted.

Meanwhile, although the mobile digital broadcasting is mainly exemplified above, the digital broadcasting standard according to the present invention is not necessarily limited thereto, and 8-VSB, which is an American digital TV standard (ATSC) developed by Zenith, USA And fixed digital broadcasting standards such as European Digital Video Broadcasting-Terrestrial (DVB-T). That is, the present invention can be applied to both fixed digital broadcasting as well as mobile digital broadcasting.

1 is a block diagram of a digital broadcast receiver according to a preferred embodiment of the present invention.

Referring to FIG. 1, a preferred embodiment of a digital broadcast receiver supporting multiple digital broadcast standards according to the present invention will be described in detail as follows.

The digital broadcast receiver according to the present invention includes a broadcast signal receiver 100, an input unit 110, a memory unit 120, and a controller 130.

The broadcast signal receiving unit 100 receives each digital broadcast signal according to two or more digital broadcast standards including a first broadcast standard and a second broadcast standard. The broadcast signal receiver 100 preferably includes an antenna 103 and a tuner 105 composed of a plurality of tuners for receiving respective digital broadcast signals according to the respective digital broadcast standards. . The first and second broadcast standards may be any one of the above-mentioned digital broadcast standards.

The input unit 110 is a device for receiving various information or commands from a user, such as a keypad or a touch screen having various keys.

The memory unit 120 stores a predetermined program for controlling the overall operation of the digital broadcast receiver, and the data is inputted and processed by the controller 130 when the overall operation of the digital broadcast receiver is performed. Store various data. In particular, the memory unit 120 stores channel information on digital broadcasting according to the respective digital broadcasting standards.

The controller 130 manages the overall operation of the digital broadcast receiver. In particular, the controller 520 controls the broadcast signal receiver 100, the input unit 110, and the memory unit 120, and performs digital broadcasting according to the first broadcast standard through the broadcast signal receiver 100. During reception, channel information about digital broadcasting according to the second broadcasting standard is obtained.

Here, the controller 130, after activating the tuner for receiving a digital broadcast signal according to the second broadcast standard of the plurality of tuners of the tuner 105, the second broadcast through the activated tuner Channel information on digital broadcasting according to the standard can be obtained.

On the other hand, the operation of the control unit 130 to obtain the channel information for the digital broadcast according to the second broadcast standard during the digital broadcast reception according to the first broadcast standard, any one of the two modes (mode) as follows: It can be performed by.

First is the automatic mode. That is, the controller 130 may automatically obtain channel information about the digital broadcast according to the second broadcast standard according to the reception of the digital broadcast according to the first broadcast standard.

Second is manual mode. That is, when the command signal is received from the user through the input unit 110, the controller 130 may obtain channel information about digital broadcasting according to the second broadcast standard.

The controller 130 compares the channel information for the digital broadcast according to the second broadcast standard with the channel information for the digital broadcast according to the second broadcast standard stored in the memory unit 120. The latest channel information is stored in the memory unit 120. That is, if the channel information acquired by the controller 130 is not present in the memory unit 120, the channel information is stored as it is. If the channel information is newer than the channel information stored in the memory unit 120, the existing channel information is newly acquired. Replace with one channel information and save.

2 is a flowchart of a method for acquiring channel information according to an exemplary embodiment of the present invention. Referring to Figure 2, a preferred embodiment of the channel information acquisition method according to the present invention will be described in detail. The method for acquiring channel information according to the present invention may be achieved by using a digital broadcast receiver supporting the multiple digital broadcasting standard according to the present invention.

First, a digital broadcast according to the first broadcast standard is received [S200]. For example, a user of a digital broadcasting receiver supporting multiple digital broadcasting standards (for example, T-DMB and S-DMB) according to the present invention is watching digital broadcasting by T-DMB.

Further, during digital broadcast reception according to the first broadcast standard, channel information regarding digital broadcast according to a second broadcast standard, which is a different broadcast standard from the first broadcast standard, is acquired [S210]. For example, a user of the digital broadcast receiver acquires channel information on digital broadcasting by S-DMB while watching digital broadcasting by T-DMB. That is, by viewing the digital broadcast according to the first broadcast standard, the channel information about the digital broadcast according to the second broadcast standard is collected during viewing of the digital broadcast according to the first broadcast standard. 2 You can watch digital broadcasting according to the broadcasting standard quickly and easily.

Meanwhile, the channel information acquisition step [S210] may be automatically performed according to the step S200, or may be performed when a command signal is received from the user during the step S200.

In operation S220, the digital broadcast receiver determines whether existing channel information for digital broadcasting according to the second broadcasting standard exists.

As a result of the determination in the existing channel information presence determination step [S220], if the existing channel information exists, it is determined whether the channel information acquired in the channel information acquisition step [S210] is newer than the existing channel information. If it is determined that the acquired channel information is newer than the existing channel information, the acquired channel information is stored [S240].

On the other hand, if the existing channel information does not exist as a result of the determination of the existing channel information presence determination step [S220], the channel information obtained in the channel information acquisition step [S210] is stored as it is [S240].

3 is an embodiment of a method for acquiring channel information of S-DMB while receiving T-DMB according to the present invention. Hereinafter, an embodiment of a method for acquiring S-DMB channel information during T-DMB reception using a digital broadcast receiver supporting multiple digital broadcasting standards according to the present invention will be described in detail.

First, the digital signal according to the T-DMB is received through the broadcast signal receiving unit 100 [S300]. Specifically, the antenna 103 and the tuner 105 may receive a digital broadcast according to the T-DMB through a tuner capable of receiving a broadcast signal according to the T-DMB.

The controller 130 activates a tuner for digital broadcast reception according to S-DMB in the tuner 105 [S310].

Subsequently, channel information for digital broadcasting according to S-DMB is obtained through the antenna 103 and the activated tuner [S320]. The channel information on the S-DMB may be obtained through a pilot channel among a plurality of channels constituting the S-DMB.

The channel information on the acquired S-DMB is compared with the S-DMB channel information previously stored in the memory 120 [S330], and the latest S-DMB channel information is stored in the memory 120 ) [S340].

4 is an embodiment of a method for acquiring channel information of a T-DMB while receiving an S-DMB according to the present invention. Hereinafter, an embodiment of a method for acquiring T-DMB channel information during S-DMB reception using a digital broadcast receiver supporting multiple digital broadcasting standards according to the present invention will be described in detail.

The T-DMB performs channel information retrieval on each channel block using a frequency channel block.

First, the digital signal according to S-DMB is received through the broadcast signal receiving unit 100 [S400]. Specifically, the antenna 103 and the tuner 105 may receive digital broadcasts according to S-DMB through a tuner capable of receiving broadcast signals according to S-DMB.

The controller 130 determines a frequency channel block index (actually a frequency band) for the T-DMB to perform channel information search [S410]. The tuner 105 activates a tuner for digital broadcast reception according to T-DMB according to the index [S420]. This is because the T-DMB must search for and acquire channel information for each frequency band.

After obtaining T-DMB channel information on the determined index [S430], comparing the T-DMB channel information previously stored in the memory unit 120 with the same index as the obtained T-DMB channel information. [S440], the latest T-DMB channel information for the determined index is stored in the memory unit 120 [S450].

Thereafter, it is determined whether the digital broadcast reception according to the S-DMB is terminated [S460]. If the reception of the S-DMB is not terminated, the tuner activation step is changed by changing the frequency channel block index for the T-DMB. ] To obtain the channel information corresponding to the changed index [S430] and store [S440, S450].

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The effects of the digital broadcast receiver supporting the multiple digital broadcast standard and the channel information acquisition method using the same according to the present invention described above are as follows.

First, according to the present invention, while receiving digital broadcasts according to the first broadcast standard, by acquiring channel information for digital broadcasts according to the second broadcast standard, which is a different broadcast standard from the first broadcast standard, When the digital broadcast reception according to the second broadcast standard is started after the digital broadcast reception is terminated, there is an effect that it is not necessary to reacquire channel information for the digital broadcast according to the second broadcast standard.

Second, according to the present invention, while receiving digital broadcasts according to the first broadcast standard, by acquiring channel information on digital broadcasts according to the second broadcast standard, the digital broadcasts according to the first broadcast standard and the digital broadcasts according to the second broadcast standard are obtained. When switching and receiving the broadcast, it is possible to drastically reduce or eliminate the time wasted in searching for channel information.

Third, according to the present invention, there is an effect that a user can automatically update channel information without having to manually search for channel information for digital broadcasting according to a specific broadcast standard.

Claims (10)

A method of acquiring channel information using a digital broadcasting receiver supporting at least two digital broadcasting standards, Receiving a digital broadcast according to the first broadcast standard; Acquiring channel information on digital broadcasting according to a second broadcasting standard while receiving digital broadcasting according to the first broadcasting standard; Determining whether there is existing channel information for digital broadcasting according to the second broadcasting standard; Storing the obtained channel information if it does not exist, as a result of the determination; And And if there is a result of the determination, comparing the acquired channel information with the existing channel information and updating the latest channel information. delete The method of claim 1, wherein the obtaining step, Channel information acquisition method, characterized in that performed automatically according to the performing of the receiving step. The method of claim 1, wherein the obtaining step, And performing a command signal from a user during the reception step. delete A digital broadcasting receiver supporting at least two or more digital broadcasting standards, A broadcast signal receiver configured to receive respective digital broadcast signals according to the two or more digital broadcast standards including a first broadcast standard and a second broadcast standard; A memory unit for storing channel information on digital broadcasting according to each digital broadcasting standard; And The channel signal for the digital broadcast according to the second broadcast standard is acquired during the reception of the digital broadcast according to the first broadcast standard through the broadcast signal receiver, and the digital broadcast according to the second broadcast standard is stored in the memory unit. If the existing channel information exists, the acquired channel information is compared with the existing channel information and updated to the latest channel information, and the existing channel information for digital broadcasting according to the second broadcasting standard does not exist in the memory unit. Otherwise, a controller for storing the obtained channel information in the memory unit. The method of claim 6, wherein the broadcast signal receiving unit, antenna; And A plurality of tuners for receiving respective digital broadcast signals according to the respective digital broadcast standards, The control unit, After activating a tuner for receiving a digital broadcast signal according to the second broadcast standard of the plurality of tuners, the channel information for the digital broadcast according to the second broadcast standard is obtained through the activated tuner. Digital broadcast receiver that supports multiple digital broadcast standards. The method of claim 6, Further comprising an input unit, The control unit, When receiving a command signal from the user through the input unit, the digital broadcast receiver supporting the multiple digital broadcast standard, characterized in that for obtaining the channel information for the digital broadcast according to the second broadcast standard. The method of claim 6, wherein the control unit, And digitally receiving channel information about digital broadcasting according to the second broadcasting standard according to the reception of the digital broadcasting according to the first broadcasting standard. delete

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