KR101221893B1 - Method for recording digital broadcasting programme, and digital broadcasting terminal using the same - Google Patents

Abstract

The present invention relates to a digital broadcast program recording method and a digital broadcast terminal for implementing the same, and more particularly, to a digital broadcast program recording method capable of conditionally recording a program received through digital broadcast, and to implement the same. It relates to a digital broadcasting terminal. The present invention comprises the steps of: (a) extracting the operator identification code from the fast information group received through the fast information channel from the digital broadcasting center; And (b) storing the program under the condition that the operator identification code extracted in the step (a) and the operator identification code previously stored in the digital broadcasting terminal match.

According to the present invention, only a receiving terminal allowed by a specific operator can record the program.

Digital broadcasting, recording, recording

Description

TECHNICAL FOR RECORDING DIGITAL BROADCASTING PROGRAMME, AND DIGITAL BROADCASTING TERMINAL USING THE SAME

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

2 is a block diagram of a digital broadcasting terminal according to the present invention;

3 is a structural diagram of extension 16 of type 0 of a fast information group in the present invention;

4 is a table showing the meaning of each content flag in the present invention.

5 is a table showing the meaning of each operator identification code in the present invention.

6 is a flowchart of a digital broadcast program recording method according to the present invention;

The present invention relates to a digital broadcast program recording method and a digital broadcast terminal for implementing the same, and more particularly, to a digital broadcast program recording method capable of conditionally recording a program received through digital broadcast, and to implement the same. It relates to a digital broadcasting terminal.

In general, a viewer may not only watch a program received through a digital broadcast channel in real time through the display of the receiver, but also may record or record a broadcast program and store it separately in the receiver.

In this way, since the broadcast program is transmitted to all the receiving terminals indiscriminately or unconditionally, the viewer can record all the received broadcast programs without restriction on the receiver. For this reason, not only can the program's recording function be paid, but also a specific viewer (specific terminal) cannot have the recording authority of a specific program. Therefore, there is a problem in that the recording service of a broadcast program cannot be provided as a service provider specialized.

The present invention has been made to solve the above problems, and provides a digital broadcast program recording method that allows only a receiving terminal allowed by a specific operator to record a corresponding program, and a digital broadcasting terminal for implementing the same. Its purpose is to.

The present invention can be applied not only to terrestrial digital multimedia broadcasting (DMB) but also to various digital broadcasting technologies such as satellite digital multimedia broadcasting (DMB), digital video broadcasting-handheld (DVB-H), and mediaflo.

In order to achieve the above object, a digital broadcast program recording method according to the present invention is a method of recording a program received through digital broadcasting by a digital broadcasting terminal, comprising: (a) information received through an information channel from a digital broadcasting center; Extracting the operator identification code from the group; And (b) storing the program under the condition that the operator identification code extracted in the step (a) and the operator identification code previously stored in the digital broadcasting terminal match.

According to the present invention, the step (a) is preferably the step of extracting the operator identification code from the extension 16 of the type 0 of the information group received through the information channel from the digital broadcasting center.

According to the present invention, in the information group of step (a), the content flag value is included in the 2-bit field reserved for future addition, and the service provider identification code value is included in the 4-bit field reserved for future addition. There may be.

According to the present invention, the step (a) may include: (a1) determining whether the content flag extracted in extension 16 of type 0 of the information group received through the information channel from the digital broadcasting center is '01'; And (a2) extracting an operator identification code from extension 16 of type 0 of the information group provided that the content flag is '01' in step (a1).

According to the present invention, the step (a2) may include: (a21) extracting an operator identification code from extension 16 of the type 0 of the information group provided that the content flag is '01' in the step (a1); And (a22) storing the program under the condition that the content flag is not '01' in the step (a1).

According to the present invention, the program of step (b) may correspond to a program number extracted from the information group in step (a).

According to another aspect of the invention, the memory unit that stores the carrier identification code; A tuner unit for extracting a broadcast signal from a digital broadcasting center; A channel decoding unit for extracting an operator identification code from the information group received through the information channel from the digital broadcasting center; A video / audio decoding unit for decoding and outputting a video stream or an audio stream; There is provided a digital broadcasting terminal including a control unit for storing a program on the condition that the operator identification code extracted by the channel decoding unit and the operator identification code previously stored in the memory unit match.

According to the present invention, the channel decoding unit may extract the operator identification code from extension 16 of type 0 of the information group received through the information channel from the digital broadcasting center.

According to the present invention, a content flag value may be included in a 2-bit field reserved for future addition among the above information groups, and a carrier identification code value may be included in a 4-bit field reserved for future addition.

According to the present invention, the channel decoding unit, at extension 16 of type 0 of the information group, provided that the content flag extracted at extension 16 of type 0 of the information group received through the information channel from the digital broadcasting center is '01'. Operator identification code can be extracted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. 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.

In particular, the present embodiment relates to the terrestrial digital multimedia broadcasting (DMB) standard, but the present invention is not limited to a specific digital broadcasting standard.

1 is a diagram showing a network configuration of a digital broadcasting terminal according to the present invention. Referring to the drawings, the digital broadcasting terminal 100 according to the present invention receives a digital broadcasting signal from the digital broadcasting center 200 through a digital broadcasting network. The digital broadcasting center 200 is connected to a plurality of service provider servers 300.1, 300.2, ..., 300.N through an information communication network.

The digital broadcast terminal 100 is a terminal that receives a broadcast program through a digital broadcast channel from the digital broadcast center 200 and records the broadcast program only when allowed by the operator. Detailed description of each component of the digital broadcasting terminal 100 will be described later with reference to FIG.

The digital broadcasting center 200 provides a broadcast program to the digital broadcasting terminal 100 through a digital broadcasting channel. In particular, the broadcast program is transmitted by including the operator identification code in the fast information group through the fast information channel. Meanwhile, the digital broadcasting center 200 receives a broadcast program from a plurality of operator servers 300.1, 300.2, ..., 300.N through an information communication network. Of course, the digital broadcasting center 200 may be provided with a broadcast program off-line without going online, or may be manufactured without receiving a broadcast program from an operator.

The service provider servers 300.1, 300.2, ..., 300.N are servers that provide broadcast programs to the digital broadcasting center 200 through an information and communication network. Here, the operator may not only be a mobile operator, but also may be a content producer, a digital broadcast terminal producer, a digital broadcast provider, etc. The present invention is not limited thereto.

2 is a block diagram of a digital broadcasting terminal according to the present invention. Referring to FIG. 2, the digital broadcasting terminal 100 according to the present invention includes a tuner unit 10, a channel decoding unit 20, a video / audio decoding unit 30, an input unit 40, a control unit 50, and a memory. The unit 60 includes an output unit 70.

The tuner unit 10 extracts a broadcast signal from the digital broadcast center.

The channel decoding unit 20 extracts the operator identification code from the fast information group received through the fast information channel from the digital broadcasting center. The fast information channel may be a fast information channel in the terrestrial DMB standard, and the fast information group may be a fast information group in the terrestrial DMB standard. Preferably, the channel decoding unit 20 extracts the operator identification code from extension 16 of the type 0 of the fast information group received from the digital broadcasting center through the fast information channel.

3 is a diagram illustrating a structure of extension 16 of type 0 of a fast information group according to the present invention. Specifically, FIG. 3 (a) shows a structure of a conventional fast information group, and FIG. 3 (b) shows a structure of a fast information group used in the present invention. Referring to FIG. 3 (a), the conventional fast information group includes SID (16 bits), PNum (16 bits), Rfa (2 bits), Rfu (4 bits), Continuation flag (1 bit), and update flag (1). Bit), New SID (16 bits), and New PNum (16 bits). Here, SID (Service ID) identifies a service as a service identifier, and PNum (Programme Number) defines a date and time when a program is started as a program number. Rfa is a 2-bit field reserved for future additions and set to zero until defined. Rfu is a 4-bit field, associated with the New SID and New PNum fields, reserved for future use and set to zero, which is currently defined by the standard. The Continuation flag is a continuation flag that indicates that the program was scheduled for an interrupt, but the program will follow soon. The update flag is an update flag that indicates redirection to other services and times. The New SID contains the service identifier for the target service of the redirection, and the New PNum specifies the time when the new broadcast and the program continue.

Meanwhile, referring to FIG. 3 (b), the fast information group according to the present invention includes SID (16 bits), PNum (16 bits), Telco_flag (2 bits), Telco_ID (4 bits), Continuation flag (1 bit), and update. It consists of flag (1 bit), New SID (16 bit), and New PNum (16 bit). Of course, other fields except Telco_flag (2 bits) and Telco_ID (4 bits) are the same as the conventional fast information group, and Telco_flag (2 bits) corresponds to the conventional Rfa (2 bits) field, and Telco_ID (4 bits). ) Corresponds to the conventional Rfu (4-bit) field. Specifically, 'Telco_flag' is defined in a conventional Rfa (2-bit) field as a content flag, and the meaning of each content flag in the present invention is shown in FIG. 4. Referring to FIG. 4, since Telco_flag means '00', the program can be recorded regardless of the value of the Telco_ID field. On the other hand, since Telco_flag means '01' for the operator to selectively record, availability of recording is determined according to the Telco_ID field value.

Meanwhile, 'Telco_ID' is defined in a conventional Rfu (4-bit) field as a carrier identification code. The meaning of each carrier identification code in the present invention is shown in FIG. 5. Referring to FIG. 5, in the case of 'operator A', the operator identification code (Telco_ID) may be defined as '0000', in the case of 'operator B', the operator identification code (Telco_ID) may be defined as '0001', etc. In addition, a total of 16 operators' identification codes can be specified.

As described above, the channel decoding unit 20 extracts the operator identification code (eg, 0010) from the Telco_ID field on the condition that the content flag extracted from extension 16 of type 0 of the fast information group, that is, the Telco_flag field is '01'.

Referring back to FIG. 3, the video / audio decoding unit 30 decodes and outputs a video stream or an audio stream.

The input unit 40 is an input device that allows a user to input a command related to digital broadcast reception and recording, and is not included in an essential component of the present invention.

The controller 50 stores the program under the condition that the operator identification code extracted by the channel decoding unit 20 and the operator identification code previously stored in the memory unit 60 match. For example, if the operator identification code extracted by the channel decoding unit 20 is '0010', and the operator identification code stored in the memory unit 60 is '0001', the operator identification code does not match. Without storing, if the operator identification code extracted by the channel decoding unit 20 is '0010', and the operator identification code stored in the memory unit 60 is '0010', the operator identification code matches, so that the corresponding program Save it.

The memory unit 60 is a storage device in which one operator identification code (for example, 0001) is stored. It is preferable that the operator identification code cannot be arbitrarily changed by the user.

The output unit 70 is an output device for reproducing a digital broadcast program and a screen necessary for digital broadcast recording. The output unit 70 may include a display, a speaker, and the like. The output unit 70 is not included in an essential component of the present invention. Does not.

6 is a flowchart of a digital broadcast program recording method according to the present invention. Referring to FIG. 6, first, recording of a specific program is selected by a user's recording selection or a schedule recording setting (step S110). Then, the digital broadcasting terminal receives extension 16 of type 0 of the fast information group through the fast information channel (step S120). Then, the content flag is extracted from the Telco_flag field (a 2-bit field reserved for future addition) in extension 16 of the type 0 of the fast information group, and it is determined whether the content flag is '01' (step S130). . If the content flag is '01' (YES in step S130), the program proceeds to step S140 conditionally, that is, a program capable of selectively recording a service provider. That is, after extracting the carrier identification code from the Telco_ID field (a 4-bit field reserved for future addition) in extension 16 of the type 0 of the fast information group, the carrier identification code is stored in advance with the carrier identification code previously stored in the digital broadcasting terminal. It is determined whether or not to match (step S140). If the determination result of step S140 matches (YES in step S140), the program is stored (step S150), and if the determination result of step S140 does not match (No in step S140), the program is recorded. The procedure ends. The program may be a program corresponding to a program number extracted from the PNum field of the fast information group.

On the other hand, as a result of the determination in step S130, if the content flag is not '01' (No in step S130), since the program can be recorded unconditionally, go to step S150 to store the program (step S150). .

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, since only a receiving terminal allowed by a specific operator can record the corresponding program, in particular, when the specific operator is a mobile operator, a program as an additional service to the subscriber of the company's mobile communication service. It can provide a recording service.

According to another aspect of the present invention, when a mobile operator provides a program recording service to a mobile subscriber free of charge, the mobile communication subscription rate can be increased, and when the mobile carrier provides a program recording service for a fee, additional revenue Can create.

According to another aspect of the present invention, on the other hand, in the case of a digital broadcasting terminal producer, the operator can provide a program recording service to a person who purchased the broadcasting terminal, thereby increasing the sales rate of the terminal.

Claims (10)

In the digital broadcasting program recording method of the digital broadcasting terminal for recording a broadcast program received from the digital broadcasting center, Receiving a broadcast signal including a broadcast program from a digital broadcast center; Receiving a fast information group (hereinafter, referred to as 'FIG') for the broadcast program through a fast information channel (hereinafter, referred to as 'FIC') in the broadcast signal; Extracting a content flag included in a first field in the received FIG; Extracting an identification code of the specific operator included in the second field in the FIG, if the extracted content flag is a value indicating that only a terminal to which the broadcast program is subscribed to the specific operator can be recorded; And And recording and storing the received broadcast program if the previously stored operator identification code and the extracted specific operator identification code coincide with each other. The method according to claim 1, The content flag extracting step may include extracting from a first field in extension 16 of type 0 of FIG, And extracting the specific operator identification code from a second field in extension 16 of type 0 of FIG. The method of claim 2, The first field is a reserved for advance (Rfa) field allocated two bits in extension 16 of type O of FIG. And the second field is a reserved for future use (Rfu) field allocated 4 bits in extension 16 of type O of FIG. According to claim 3, wherein the specific operator identification code extraction step, Determining whether a content flag extracted from the Rfa field is a value of '01'; And And if the content flag is '01', extracting the identification code of the specific operator from the Rfu field. The method according to claim 1, And recording and storing the broadcast program if the extracted content flag is a value indicating that the broadcast program can be recorded by all terminals irrespective of a specific service provider. delete A digital broadcasting terminal for recording a broadcast program received from a digital broadcasting center, A memory unit in which a business identification code is stored; A tuner unit for extracting a broadcast signal including a broadcast program from a digital broadcast center; A first in a Fast Information Group (hereinafter referred to as 'FIG') for the broadcast program received through a Fast Information Channel (hereinafter referred to as 'FIC') from a digital broadcasting center; A channel decoder extracting a content flag from a field and extracting an identification code of a specific operator from a second field in the FIG; A video / audio decoding unit for decoding and outputting a video stream or an audio stream; And If the content flag extracted through the channel decoding unit is a value indicating that only a terminal to which the broadcast program is subscribed to the specific operator can record, the identification code of the specific operator is extracted through the channel decoding unit, and the extracted specific And a controller configured to record and store the broadcast program in the memory unit when the operator identification code and the stored operator identification code match. 8. The method of claim 7, The channel decoding unit extracts the content flag from the first field in the extension 16 of the type 0 of FIG, and extracts the specific operator identification code from the second field within the extension 16 of the type 0 of FIG. Digital broadcasting terminal. 8. The method of claim 7, The first field is a reserved for advance (Rfa) field allocated two bits in extension 16 of type O of FIG. And the second field is a reserved for future use (Rfu) field allocated 4 bits in extension 16 of type O of FIG. The method of claim 9, The channel decoding unit, And if the content flag extracted from the Rfa field is a value of '01', extracting the identification code of the specific operator from the Rfu field.

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