KR100786430B1 - Method of managing records of broadcasting signal according to broadcasting stations and broadcasting receiving apparatus thereof - Google Patents

Abstract

Disclosed are a broadcasting station management method for a broadcast signal recording, and a broadcast receiving apparatus thereof. When recording a predetermined digital broadcast signal, the broadcast receiving apparatus according to the present invention may automatically classify and store the broadcast station based on system information included in the corresponding broadcast signal, and store the request. By displaying the video file stored for each broadcasting station, it can be easily searched and played.

PSIP, VCT, Recording, Storage, by Station

Description

Method of managing records of broadcasting signal according to broadcasting stations and broadcasting receiving apparatus

1 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention;

2 is a view showing an example of a recording list display by the broadcast receiving apparatus of the present invention;

3 is a flowchart provided to explain a recording operation of a broadcast receiving apparatus according to an embodiment of the present invention; and

4 is a flowchart provided to explain a reproduction operation of a broadcast receiving apparatus according to an embodiment of the present invention.

According to the present invention, a broadcast receiving device having a storage medium such as a personal video recorder (PVR) set top box (STB), a built-in PVR TV system, etc., is classified according to broadcasting stations and automatically recorded. The present invention relates to a broadcasting station management method of a broadcast signal recording and to a broadcast receiving apparatus for storing the data and retrieving the recording for playback.

If the PVR STB or the Built-in PVR TV, which is one of the video devices with a storage medium used at home, records a digital broadcast, the user first searches for a recording in the recording list and plays the desired recording.

In this case, when the number of recordings is large, it is very difficult and inconvenient to find a recording recording a specific program of a desired broadcasting station among stored recordings.

An object of the present invention is to provide a broadcast receiving device having a storage medium, such as a personal video recorder (PVR) set top box (STB), a built-in PVR TV system, etc., to classify digital broadcast programs. The present invention provides a method for managing broadcast signal recordings of broadcast signal recordings and a broadcast receiving apparatus for automatically storing and retrieving the recordings for reproduction by searching for broadcast stations.

In accordance with an aspect of the present invention, there is provided a method for managing broadcast stations by broadcast station recording apparatus of a broadcast receiving apparatus, the method comprising: separating an AV stream to be recorded from a digital broadcast signal of a predetermined broadcast station; Confirming the broadcasting station information transmitting the broadcasting signal from the data broadcasting data separated from the recording data; recording the AV stream by storing the AV stream in a corresponding broadcasting station folder created in a predetermined storage medium based on the confirmed broadcasting station information. And storing recording information including a folder name in which the AV stream is stored and a title of the AV stream in a database.

The checking of the broadcasting station information may include obtaining the broadcasting station information from a virtual channel table (VCT) of a program and system information protocol (PSIP) according to the Advanced Television System Committee (ATSC) standard of the data broadcasting data. You can check it.

The management method of the present invention may further include generating a corresponding broadcast station folder when the storage medium does not have a broadcast station folder corresponding to the identified broadcast station information.

In addition, the management method of the present invention, receiving a recording list display command of the user, in response to the display command, the list of AV streams stored in the storage medium based on the recording information stored in the database for each broadcasting station folder The displaying may further include receiving a command for selecting one of the displayed list of AV streams and playing an AV stream corresponding to the selected one.

A broadcast receiving apparatus according to another embodiment of the present invention includes a tuner / demultiplexer, a memory, a storage medium, and a controller.

A tuner / demultiplexer receives a digital broadcast signal of a predetermined broadcast station and separates the data into AV streams and data broadcast data, and the data broadcast data output from the tuner / demultiplexer is stored in a memory. In addition, the storage medium stores an AV stream to be recorded among the AV streams separated from the tuner / demultiplexer, and is preferably a hard disk.

The control unit controls the AV stream to be recorded in the predetermined folder on the storage medium from the tuner / demultiplexer in response to a predetermined recording command. The folder corresponds to broadcast station information of the broadcast signal identified from the data broadcast data.

The controller may check the broadcasting station information of the broadcasting signal from the virtual channel table of the PSIP according to the ATSC standard included in the data broadcasting data, and if the storage medium does not have a broadcasting station folder corresponding to the confirmed broadcasting station information, The storage medium may be controlled to generate a corresponding broadcast station folder.

The broadcast receiving apparatus of the present invention receives an AV stream output from one of an input unit, a tuner / demultiplexer, and a storage medium for receiving a recording list display command requesting display of a list of AV streams stored in the storage medium from a user. A decoder for decoding a digital video signal and an audio signal, a graphic processor for generating a video signal corresponding to predetermined data output from the controller, a video signal output from the graphic processor, a digital video signal and a audio signal decoded by the decoder. The apparatus may further include an AV signal processor configured to process and convert the signal into a signal for a predetermined display device and a speaker and output the converted signal.

In this case, when receiving the recording list display command from the input unit, the controller may generate data for an image displaying a list of AV streams stored in the storage medium for each broadcasting station folder and output the data to the graphic processor.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention, and FIG. 2 is a view showing an example of recording list display by the broadcast receiving apparatus of the present invention.

The broadcast reception device 100 according to an embodiment of the present invention may receive a digital broadcast signal of a specific broadcast station according to a user's control command, store it in an internal storage medium, and reproduce the stored broadcast signal. The broadcast receiving apparatus 100 stores and manages data files, which are broadcast signal recordings, by broadcasting stations for the convenience of a user in such a recording and reproducing process.

You will have your favorite stations, and most of them know which station you want to record, so if you automatically sort and record broadcasts by station, you can easily record them from the folder. Will be found.

The broadcast receiving apparatus 100 of the present invention is a device capable of receiving a digital broadcast signal and storing the corresponding digital broadcast signal in a built-in storage medium. A device having a personal video recorder (PVR) function may be used. This may be the case. In this case, the storage medium may correspond to a flash memory, a hard disk, and the like, and preferably, a hard disk. When the storage medium is a hard disk, the broadcast receiving apparatus may correspond to a set top box (STB), a built-in PVR TV system, or the like. 1 is illustrated on the premise of a built-in FTV system, and the following description is based on FIG. 1.

Referring to FIG. 1, the broadcast receiving apparatus 100 of the present invention includes a tuner / demultiplexer 101, a memory 103, a decoder 105, and an audio video signal processing unit 107. ), A graphics processor 109, a user input unit 111, a storage medium 113, and a controller 115.

The tuner / demultiplexer 101 receives a digital broadcast signal including an MPEG transport stream (TS), and separates and outputs an AV stream and data broadcast data from the received digital broadcast signal. The digital broadcast signal received by the tuner / demultiplexer 101 corresponds to one of a plurality of broadcast channels.

The data for data broadcasting includes Program and System Information Protocol (PSIP) and Program Service Information (PSI).

PSIP is a variety of additional information for digital broadcasting according to the North American Advanced Television System Committee (ATSC) standard, which is information for services such as classification and program guide for information transmitted through a corresponding transmission channel.

However, when the broadcast signal received by the tuner / demultiplexer 101 conforms to the European Digital Broadcasting DVB (Digital Video Broadcasting) standard, the digital video broadcasting (DVB-SI), which is the basis of the EPG (Electronic Program Guide) instead of the PSIP, is used. -Service Information) It can include information according to the standard and can be applied correspondingly.

The AV stream output from the tuner / demultiplexer 101 may be stored (or recorded) by being output to the storage medium 113 under the control of the controller 115.

The memory 103 is an inactive memory 103 that stores various data for broadcasting including PSIP separated from the tuner / demultiplexer 101.

The decoder 105 parses the original video signal and the audio signal from the AV stream output from the tuner / demultiplexer 101 or the storage medium 113 under the control of the control unit 115 to control the AV signal processor 107. Will output

The AV signal processor 107 processes the video and audio signals output from the decoder 105 and outputs them to a display device (not shown) and a speaker (not shown), respectively. In this case, the graphic video signal input from the graphic processor 109 is included in the video signal output to the display device (not shown).

The graphic processor 109 generates a graphic image signal for graphically displaying information for a user interface such as a broadcast medium, a channel, a recording, a reservation recording, and a playback under the control of the controller 115. The graphic video signal includes an OSD (On Screen Display) signal. The graphic processor 109 outputs a graphic video signal such as the generated OSD signal to the AV signal processor 107 to be inserted into the video signal output from the decoder 105.

The user input unit 111 receives a channel change command, a recording command, a reservation recording command, a playback command of a stored broadcast signal, and a display / change command of various setting items from a user and outputs the same to the controller 115. The user may input a control command for requesting recording or reserved recording of a broadcast signal corresponding to a broadcast program of a specific broadcasting station by using the user input unit 111, and also predetermined playback for reproducing the recorded broadcast signal. You can enter a command.

The user input unit 111 corresponds to a wired or wireless interface with an external wireless remote controller, a mouse, a keyboard, and the like, and according to an embodiment, a mouse and a keyboard are included in the user input unit 111. Can be mounted.

The storage medium 113 corresponds to a hard disk, a flash memory, and the like. The storage medium 113 may store an AV stream input from the tuner / demultiplexer 101 under the control of the controller 115.

The storage medium 113 forms a folder for each broadcasting station under the control of the controller 115 to store the AV stream. Accordingly, the AV stream requested to be stored by the user is stored in the corresponding broadcasting station folder of the storage medium 113.

However, the folder created in the storage medium 113 is not necessarily created by the broadcasting station. For example, if a plurality of virtual channels can be separately formed in one physical channel according to the digital broadcasting standard, folders may be formed for each virtual channel. In other words, folders may be formed for each digital broadcasting channel in the storage medium 113. Preferably, the broadcast receiving device 100 of the present invention forms a folder for each broadcasting station despite the virtual channel.

In addition, the storage medium 113 may output and reproduce the AV stream stored in the predetermined folder to the decoder 105 under the control of the controller 115.

The controller 115 controls the overall operation of the broadcast receiving device 100. In addition, the control unit 115 includes a recording processing unit 117 and a playback processing unit 119 to perform a broadcasting station-specific management method for broadcast signal recordings according to the present invention. In the following description, 'recording' may be expressed as 'stored AV stream' and is interpreted in the same sense.

The recording processing unit 117 receives a user's recording or reservation recording command for a predetermined program of a specific broadcast channel from the user input unit 111. For convenience of explanation, the following description will focus on the case where a recording command is received. If the tuner / demultiplexer 101 is not currently receiving a broadcast signal of a corresponding broadcast channel in order to process a recording command, the recording processor 117 receives the broadcast signal of the corresponding broadcast channel. It is possible to control to output the AV stream and the data for data broadcasting.

The recording processing unit 117 controls the storage medium 113 to store the AV stream corresponding to the recording command among the broadcast signals output from the tuner / demultiplexer 101. In storing the AV stream in the storage medium 113, the recording processing unit 117 may generate a folder for each broadcasting channel and control the storage to be stored in the generated folder.

According to the Advanced Television System Committee (ATSC), a North American digital TV standard, at least one virtual channel can be formed in one physical channel specified in a predetermined frequency band. In this case, the tuner / demultiplexer 101 may receive broadcast signals of a plurality of broadcast channels including virtual channels by tuning to one frequency band. In this case, as described above, the folder of the storage medium 113 may be created for each virtual channel.

The recording processing unit 117 decodes a virtual channel table (VCT) among PSIP information stored in the memory 103 in performing a recording operation, and extracts broadcasting station information by reading a short name included in the virtual channel table. .

PSIP includes a total of six tables, such as a virtual channel table, and is the basis of an EPG (Electronic Program Guide). Each table is a table designed to process all TS (Transport Stream) required for digital TV terrestrial broadcasting. Among these tables, the virtual channel table has information about the virtual channel and is also called terrestrial virtual channel table (TVCT).

The recording processing unit 117 forms a folder of the broadcasting station in the storage medium 113 based on the broadcasting station information extracted from the virtual channel table, and records the broadcast program requested by the user by storing the AV stream in the created folder. do.

The recording processor 117 may not recreate a folder having the same name if a folder of a broadcasting station is already created in the storage medium 113.

The recording processing unit 117 may set the title of the program as the name of the newly stored AV stream based on the EPG information. In addition, the recording processing unit 117 records and manages the recording information including the title of the stored stream and its folder information in a separate database.

The playback processor 119 controls the playback of the recordings requested from the user among the recordings previously stored in the storage medium 113 to be played through the decoder 105.

The playback processing unit 119 receives a user's playback request for a specific recording through the user input unit 111. The playback request of the user may be made through various procedures. Preferably, the recording list is displayed, and the user can input a play request by inputting a command for selecting one recording among the displayed recording lists.

The display of the recording list is performed by the playback processing unit 119 which receives the recording list display command of the user through the user input unit 111 based on the folder information stored in the database and the title of each recording.

The reproduction processing unit 119 outputs an image for displaying a predetermined recording list to the graphic processing unit 109 so as to generate a corresponding image signal. Hereinafter, an example of displaying a recording list will be described with reference to FIG. 2.

FIG. 2 is an example (a) of a recording list image displayed through the broadcast receiving device 100, and three broadcasting station folders are displayed on the storage medium 113 in multiple stages.

As the user selects an MBC broadcast station using a navigation key such as a remote controller or a keyboard, the broadcast station name is displayed in a highlighted manner as another method, for example, an identification number b. Next, a list of recordings stored in the selected broadcast station folder is displayed.

In the embodiment of FIG. 2, a list of recordings is displayed as a thumbnail image. In other words, the embodiment of FIG. 2 uses a method of displaying a part of an image of the recording in the form of a thumbnail image such as an identification number c or d in order to allow a user to quickly and easily check the contents of the recording. will be.

In addition to the example of FIG. 2, any display of a multi-level structure representing a broadcast station folder is possible.

In order to display the contents of the recordings as thumbnail images, the recording processing unit 117 stores the recordings, and then extracts at least one frame of images from the recordings and stores them separately as image data. The recording processing unit 117 records predetermined information including the title of the image in the database.

The reproduction processing unit 119 may include the thumbnail image in the image for displaying the recording list so that the graphic processing unit 109 displays it.

When the playback processor 119 receives a playback request for a particular recording, the storage medium 113 outputs the recording and the decoder 105 decodes the recording and outputs the recording to the AV signal processing unit 107. do. Accordingly, the decoder 105 processes the AV stream output from the storage medium 113 in place of the tuner / demultiplexer 101, thereby reproducing the recording.

3 is a flowchart provided to explain a recording operation of a broadcast receiving apparatus according to an embodiment of the present invention. 1 to 3, the recording operation of the broadcast receiving device 100 of the present invention will be described.

First, the recording processing unit 117 receives a recording command from the user through the user input unit 111. These recording commands include general recording and scheduled recording, and the basic operation thereof can be as usual, so the description is simplified. For example, in the case of a scheduled recording, the user may input a reserved recording command of a predetermined program based on the displayed EPG information, and in other cases, the user may convert a channel into a channel of a broadcast program that the user wants to record. After that, the recording command is input (S301).

When the AV stream corresponding to the recording command is output from the tuner / demultiplexer 101, the recording processing unit 117 is included in the broadcast signal and is separated from the tuner / demultiplexer 101 and output from the virtual channel table included in the PSIP. Broadcasting station information of the corresponding broadcast signal is extracted (S303).

The recording processing unit 117 determines whether a folder corresponding to the broadcasting station is already created in the storage medium 113 (S305), and if not, generates the corresponding broadcasting station folder (S307).

The recording processing unit 117 stores the AV stream separated from the broadcast signal by the tuner / demultiplexer 101 in the corresponding broadcast station folder of the storage medium 113 (S309).

The recording processing unit 117 extracts and sets the title of the stored AV stream from the EPG, and completes recording by recording information on the stored recording in a database (S311).

By the above method, the recording operation of the broadcast receiving device 100 is performed.

4 is a flowchart provided to explain a reproduction operation of a broadcast receiving apparatus according to an embodiment of the present invention. 1 to 4, the playback operation of the broadcast receiving apparatus 100 of the present invention will be described.

The user may first input a recording list display command through the user input unit 111 to play a predetermined recording. This recording list display command is input to the playback processing unit 119. However, the recording list display command by the user is not necessarily required for the reproduction operation according to the present invention, and the following step S403 may be performed without the display command of the user. For example, the broadcast receiving device 100 may continuously display a list for reproduction without a user's command (S401).

When the playback processing unit 119 receives the recording list display command, the graphics processing unit 109 displays data for displaying the recording list including a predetermined broadcast station folder structure on the storage medium 113 based on the recording information stored in the database. The image is output to be displayed as a predetermined image (S403).

The reproduction processing unit 119 receives a reproduction command of a specific recording input by the user based on the displayed recording list. The playback command of the user may correspond to a method of selecting one of the thumbnails of the recording list displayed as shown in FIG. 2 (S405).

The playback processor 119 controls the storage medium 113 to output recordings corresponding to the playback command of the user, and simultaneously controls the decoder 105 to decode and play the recordings output from the storage medium 113. (S407).

According to this method, the playback operation of the broadcast receiving device 100 according to an embodiment of the present invention is performed.

The invention can be implemented in methods, devices and systems. In addition, when the present invention is implemented in computer software, the components of the present invention may be replaced with code segments necessary for performing necessary operations. The program or code segment may be stored in a medium that can be processed by a microprocessor and transmitted as computer data coupled with carrier waves via a transmission medium or communication network.

The media that can be processed by the microprocessor include electronic circuits, semiconductor memory devices, ROMs, flash memory, electrically erasable programmable read-only memory (EEPROM), floppy disks, optical disks, and hard disks. (Hard) Includes the ability to transmit and store information such as disks, fiber optics, wireless networks, and the like. Computer data also includes data that can be transmitted over electrical network channels, optical fibers, electromagnetic fields, wireless networks, and the like.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the above-described specific embodiment, the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

As described in detail above, the broadcast receiving apparatus according to the present invention may record and reproduce a predetermined digital broadcast signal in response to a recording command of the user. Furthermore, the broadcast receiving apparatus creates a folder for each broadcasting station in recording a predetermined broadcast signal on a storage medium, and stores and manages the recording in the corresponding broadcasting station folder.

Accordingly, when the user wants to play the pre-stored recordings, the broadcast reception device may provide a list of the recordings stored for each broadcasting station. This feature is very advantageous for the user's storage search when there are many pre-recorded recordings.

When the broadcast receiving apparatus stores a predetermined recording for each broadcasting station, the broadcast receiving device may automatically perform broadcasting station information by extracting broadcasting station information from a virtual channel table (VCT) of the PSIP included in the broadcasting signal.

Claims (9)

Separating data broadcasting data and an AV stream to be recorded from a digital broadcasting signal of a predetermined broadcasting station; Identifying the broadcasting station information transmitting the broadcasting signal from data broadcasting data separated from the broadcasting signal; Recording by storing the AV stream in a broadcaster folder (Folder) created in a predetermined storage medium to correspond to the identified broadcaster information based on the confirmed broadcaster information; And And storing the recording information including a folder name in which the AV stream is stored and a title of the AV stream in a database. The method of claim 1, Confirming the broadcast station information, And a broadcast receiving apparatus confirming the broadcasting station information from a virtual channel table (VCT) of a program and system information protocol (PSIP) conforming to the ATSC (Advanced Television System Committee) standard included in the data broadcasting data. Method for managing broadcast signals of broadcast stations by recording station. The method of claim 1, And generating the broadcast station folder only when there is no broadcast station folder corresponding to the identified broadcast station information on the storage medium. The method of claim 1, Displaying a list of AV streams stored in the storage medium for each broadcasting station folder based on the recording information stored in the database; And receiving a command for selecting one of the displayed list of AV streams, and reproducing an AV stream corresponding to the selected one of the list of AV streams. A tuner / demultiplexer for receiving a digital broadcast signal of a predetermined broadcast station and separating the data into an AV stream and data broadcast data; A memory for storing the data broadcasting data output from the tuner / demultiplexer; A storage medium storing an AV stream to be recorded among AV streams separated from the tuner / demultiplexer; The broadcasting station information of the digital broadcasting signal is confirmed from the data broadcasting data in response to a predetermined recording command, and is separated from the tuner / demultiplexer in a broadcasting station folder created on the storage medium so as to correspond to the confirmed broadcasting station information. And a control unit which controls to store the AV stream to be recorded. The method of claim 5, And the control unit checks the broadcasting station information of the broadcast signal from the virtual channel table of the PSIP according to the ATSC standard included in the data broadcasting data. The method of claim 5, And the control unit controls the storage medium to generate a corresponding broadcast station folder only when there is no broadcast station folder corresponding to the identified broadcast station information on the storage medium. The method of claim 5, The storage medium is a broadcast receiving device, characterized in that the hard disk (Hard Disk). The method of claim 5, An input unit for receiving a recording list display command requesting display of a list of AV streams stored in the storage medium from a user; A decoder which receives an AV stream output from one of the tuner / demultiplexer and a storage medium and decodes a digital video signal and an audio signal; A graphic processor which generates a video signal corresponding to predetermined data output from the controller; And And an AV signal processor for processing the video signal output from the graphic processor, the digital video signal and the audio signal decoded by the decoder, and converting the video signal into a signal for a predetermined display device and a speaker. When receiving the recording list display command from the input unit, the controller generates data for an image displaying a list of AV streams stored in the storage medium for each broadcasting station folder and outputs the data to the graphic processing unit. Receiver.

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