KR100479785B1 - Remote controling system for digital broadcasting receiver using terrestrial digital broadcasting and method therefore - Google Patents

Abstract

The present invention relates to a remote control system and method for a digital broadcast receiver using terrestrial digital broadcasting. In particular, the present invention relates to a technology that enables users to easily and conveniently schedule recording using information related to the reserved recording of the digital broadcast itself without being directly connected to and controlled by the digital broadcast receiver through a network or the like at a remote location.

According to the present invention, there is provided a remote control system of a digital broadcast receiver using terrestrial digital broadcasting, comprising: a remote terminal for reserved recording of a digital broadcast desired by a user at a remote location through a network; A digital broadcasting remote control service system for acquiring information on reservation recording from the remote terminal and transmitting EPG (Electronic Program Guide) information; A digital broadcast transmission system for encoding and transmitting stream information on digital broadcast from the remote control service system; The present invention provides a remote control system of a digital broadcast receiver including a digital broadcast receiver which receives and decodes a digital broadcast stream from the digital broadcast transmission system, acquires information on reserved recording, and then performs reserved recording.

Description

Remote controling system for digital broadcasting receiver using terrestrial digital broadcasting and method therefore}

The present invention relates to a remote control system and method for a digital broadcast receiver using terrestrial digital broadcasting.

Digital broadcasting through terrestrial broadcasting is spreading nationwide mainly in metropolitan areas and large cities. Digital broadcasts have a great impact on viewers, such as when switching from black and white televisions to color televisions with superior picture quality and sound compared to analog broadcasts in the past.

Early digital broadcast receivers were simply equipped to display these high-definition and high-quality digital images. However, as digital broadcast receivers equipped with a hard disk mounted PVR (Personal Video recording) function have emerged, viewers have become interested in additional functions such as reservation recording as digital broadcasts can be stored and viewed again.

In addition, digital broadcasting receivers with network functions have been developed, and various things, such as surfing the web, such as PCs, are possible through the Internet. In addition, by connecting to a digital broadcast receiver remotely through the Internet, it is possible to schedule recording of desired broadcast programs or to control other connected home appliances.

1 illustrates a situation in which a digital broadcast receiver has a network function and can be connected to the Internet from a remote location, and FIG. 2 illustrates a situation in which the digital broadcast receiver is not connected to the Internet.

As shown in FIG. 1, if the digital broadcast receiver 10 is connected to the Internet 30, the remote PC 20 may be connected to the remote PC 20 to schedule recording of a desired broadcast.

However, if there is no network function as shown in FIG. 2 and is not connected to the Internet, it is impossible to control the digital broadcast receiver 10 from the remote PC 20.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to provide users with easy and convenient reception of information related to reservation recording in digital broadcasting itself without remotely accessing and controlling the digital broadcasting receiver through a network. It is to enable scheduled recording.

As a technical idea for achieving the above object of the present invention

A remote control system of a digital broadcast receiver using terrestrial digital broadcasting, comprising: a remote terminal for reserved recording of a digital broadcast desired by a user at a remote location through a network; A digital broadcast remote control service system for transmitting EPG (Electronic Program Guide) information to the remote terminal and storing the requested reservation recording information; A digital broadcast transmission system for encoding and transmitting reservation recording information stored in the remote control service system; And a digital broadcast receiver configured to receive and decode a digital broadcast stream from the digital broadcast transmission system to obtain information on reserved recording and to perform reserved recording, and to provide a remote control system of a digital broadcast receiver.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment of the present invention will be described in detail.

3 is a block diagram of a remote control system according to the present invention.

As shown in FIG. 3, the digital broadcast receiver 10, the remote PC 20 (or the mobile phone 22, the hand held computer 24 included), the Internet 30, the terrestrial digital broadcast station 40a. And 40b and 40c. The terrestrial digital broadcasting stations 40a, 40b, and 40c are equipped with a terrestrial digital broadcasting transmission system 42 and a remote control service system 44.

In order to reserve and record digital broadcasting desired by a user at a remote location, the program is connected to each remote control service system 44 of the terrestrial digital broadcasting stations 40a, 40b, and 40c broadcasting the corresponding program to receive EPG (Electronic Program Guide) information. Select to apply for scheduled recording.

Then, each remote control service system 44 of the digital broadcasting stations 40a, 40b, and 40c informs the digital broadcasting station of the reservation recording, and the digital broadcasting stream in the transmission system of the digital broadcasting stations 40a, 40b and 40c that received the information. By encoding and inserting the related information, the digital broadcast receiver 10 receives and decodes the digital broadcast stream to obtain information on the reserved recording and then performs the reserved recording.

Here, the connection of the remote control service system 44 is possible using all networkable devices. For example, not only the PC 20 but also a hand held computer 24 and a mobile phone 22 having a wireless Internet connection function can be used.

When a remote user connects to the remote control service system 44 using this means, the remote control service system 44 must first transmit EPG information. In the graphic environment, the user can select a program based on a GUI (Graphic User Interface) as shown in FIG. 4 and connect to a text based web browser such as a mobile phone. The same text-based UI (User Interface) allows you to select a program to apply for scheduled recording.

Unlike satellite digital broadcasting, terrestrial digital broadcasting does not send EPG information to a separate channel, but instead multiplexes program specific information (PSI) data such as digital audio and video data to channels allocated to each digital broadcasting station. Send it to the stream.

In more detail, in the case of FIG. 3, if the digital broadcasting stations A, B, and C (40a, 40b, 40c) are broadcasting on the RF channels 7, 9, and 11, respectively, the digital broadcasting of the broadcasting station A 40a is performed by the channel 7 channel. Video and PSI data are multiplexed in a frequency band and sent as one TS. Broadcast stations B and C 40b and 40c likewise transmit TS through the frequency bands assigned to channels 9 and 11, respectively.

That is, in the case of terrestrial digital broadcasting, EPG information of each broadcasting station is managed separately so that the corresponding RF channel must be tuned in order to obtain EPG information of a desired broadcasting station in the digital broadcasting receiver 10. Therefore, the remote user also accesses the remote control service system 44 of the desired broadcasting station, obtains EPG information of the broadcasting station, selects a desired program, and then applies for reservation recording.

The transmission system of the digital broadcasting station encodes the requested reservation recording information into dedicated data, multiplexes it with the video and the PSI data, and sends it to the TS. Finally, the digital broadcast receiver 10 demultiplexes the TS to extract private data, and then performs reserved recording according to the reserved recording information.

6 illustrates a process of processing a reservation recording request of a user in a remote control service system and creating a digital broadcast stream using the information in a transmission system of a digital broadcasting station.

When a remote user accesses a device such as a PC or a mobile phone through the Internet, the remote control service system undergoes a user authentication process (S50). At this time, if the user is valid (S51), the user can select whether to access the GUI-based web browser or the text-based web browser (S52), and configure and send EPG information of the GUI environment and the text environment according to the selected contents. (S53). The user selects the desired programs from this EPG and subscribes to the scheduled recording.

Then, the remote control service system stores the user information and the reserved recording information (S54). Then, the information is transmitted to the transmission system of the digital broadcasting station, or the transmission system of the digital broadcasting station takes the information, encodes it into a dedicated data packet, multiplexes it with the video and other data, and makes a digital broadcast. It is made (S55).

Here, the transmitting system of the digital broadcasting station may include the function of the remote control service system in addition to the function of making the digital broadcasting stream.

FIG. 7 illustrates a process of performing reservation recording using the digital broadcast receiver when the digital broadcast including the reservation recording information is received. Here, it is assumed that the digital broadcast receiver prestores the same user information as that used by the remote control service server.

The digital broadcast receiver determines the user information field of the dedicated data of the TS obtained by tuning the digital broadcast and extracts the reserved recording information from the dedicated data to record the designated program at the designated time if it matches the stored user information. If the user information doesn't match, nothing happens.

That is, in more detail, the reservation recording information and the user information in the digital broadcasting system of the digital broadcasting station are recorded in the ITU-T Rec. H.222.0 | Packetized and multiplexed with the contents of private data defined in ISO / IEC 13818-1 (hereinafter referred to as ISO / IEC 13818-1) to form a TS (Transport Stream) (S60).

Then, if the TS received from the digital broadcasting receiver includes private data, in order to determine whether the valid private data created for the processing is correct (S62), whether the user information is extracted from the private data and matched with the stored user information. Comparison is made (S61).

As a result of the determination, if the valid private data, the reserved recording information is extracted from the private data to perform the reserved recording (S63).

ISO / IEC 13818-1, a terrestrial digital broadcasting system standard, defines user data not defined in the standard as private data. The content of these proprietary data is not defined in ISO / IEC 13818-1 and will not be defined in the future. Dedicated data can be loaded at the following locations in ISO / IEC 13818-1 Syntax.

First, the payload portion of the transport packet stream of FIG. 8 may come to the payload portion. In this case, the private data transmitted is user private defined in the stream type of FIG. 10. ) Is called.

Second, it is loaded in private_data_bytes of the adaptation field of FIG. 8. In this case, it indicates that private data is transmitted by setting transport_private_data_flag. The maximum number of private_data_bytes that can be transmitted is 183 bytes.

Third, it is included in the PES Packet of FIG. 9 and can be transmitted. In this case, it is divided into two. First of all, it is included in PES_Private_Data of 16 bytes of PES_Packet_Header. It sets PES_private_data_flag to indicate its existence. The other is contained in PES_private_data_byte and is called private data within PES packets corresponding to stream_type value 0x06 of FIG.

Fourth, a private descriptor is used to send simple information about private data that a user wants to send. Such a descriptor may be located in TS_program_map_section, private section, or the like.

Lastly, it is included in the private date byte of the private section of FIG. 11 and is called a private data in PSI section having a stream_type value of 0x05 of FIG. The transmission system of each digital broadcasting station may broadcast the reservation application information as a content of the private data in a location where it is promised among the locations that may include the private data described above, and packetize it in the TS.

Then, the digital broadcast receiver receives the digital broadcast stream containing such private data and first extracts the user information from the private data and compares it with the user information stored in the private data in order to determine whether it corresponds to itself. Schedule recording is performed by extracting the reservation recording information included in Data).

As described above, according to the remote control system of the digital broadcasting receiver according to the present invention, when the terrestrial digital broadcasting is reserved and recorded, the user is required to access the remote control service server of the terrestrial digital broadcasting station and to make a reservation recording request. Since the reservation information requested by the broadcaster is broadcast in the stream, the digital broadcast receiver can make a reservation by tuning the channel of the digital broadcasting station and extracting only relevant information.

Therefore, since the information related to the reservation recording is brought to the digital broadcast itself as described above without directly accessing and controlling the digital broadcast receiver through a network or the like at a remote location, users can easily and conveniently perform the reservation recording.

1 is a view showing a state in which a digital broadcast receiver has a network function and is accessible from a remote place through the Internet.

2 is a diagram illustrating a state in which a digital broadcast receiver is not connected to the Internet.

3 is a configuration diagram of a remote control system of a digital broadcast receiver according to the present invention.

4 is a diagram illustrating an example of a reservation recording application when a program is selected based on a GUI according to an embodiment of the present invention.

5 is a diagram illustrating an example of a reservation recording application when a text-based UI program is selected according to an embodiment of the present invention.

6 is a flowchart illustrating a remote reservation recording service process of the remote control system.

7 is a flowchart showing a reservation recording process of a digital broadcast receiver.

8 is a diagram for a transport stream syntax.

9 is a diagram for PES packet syntax.

10 is a diagram for Stream type assignment.

11 is a diagram for a private section.

Claims (5)

In the remote control system of a digital broadcast receiver using terrestrial digital broadcasting, When accessing using a web browser in a graphic environment through a network, select a GUI-based program, or when accessing using a text-based web browser, select a program based on a text and the user at a remote location A remote terminal for reserved recording of digital broadcasting;  A digital broadcast remote control service system for transmitting EPG (Electronic Program Guide) information to the remote terminal and storing the requested reservation recording information; A digital broadcast transmission system for encoding and transmitting reservation recording information stored in the remote control service system; And a digital broadcast receiver for receiving and decoding the digital broadcast stream from the digital broadcast transmission system to obtain information on the reserved recording and then performing the reserved recording. delete delete In the remote control method of the digital broadcast receiver having a remote control service system and a digital broadcast transmission system for performing remote scheduled recording, Determining whether the remote user is a valid user through a user authentication process when the remote user accesses the remote control service system; As a result of the determination, if the user is a valid user, selecting whether the user can receive the service based on the GUI or the text based UI; Sending EPG information based on GUI and text based on a user's selection; Storing the relevant information when a user selects a desired program from the EPG and applies for reservation recording; And transmitting the stored reserved recording information and the user information to a digital broadcasting transmission system of a digital broadcasting station or, if the digital broadcasting transmission system requires it. The method according to claim 4, wherein the reserved recording information and user information in the digital transmission system of the digital broadcasting station. H.222.0 | Packetizing and multiplexing the contents of the private data defined in ISO / IEC 13818-1 into a transport stream (TS); If the TS received from the digital broadcasting receiver contains private data, the user information is extracted from the private data and compared with the stored user information to determine whether the valid private data created for the processing is correct. Making a step; And if the valid private data is found, extracting the reserved recording information from the private data and performing the reserved recording.