KR101175366B1 - Apparatus and method for recording digital multimedia broadcasting - Google Patents

Abstract

The present invention relates to recording of DMB broadcasting, comprising: a DMB communication unit for requesting and receiving DMB broadcasting data by accessing a DMB broadcasting system; A recording unit for recording and storing the DMB broadcast received through the DMB communication unit at a set image quality; A search unit which searches for the DMB broadcast data recorded by the recording unit, and extracts broadcast data having a lower quality than a set image quality and broadcast data in which an error occurs; Broadcast of image quality set by a user by using a recording apparatus configured to re-record broadcast data falling below the set image quality extracted by the search unit or broadcast data in which an error occurs and edit and store the broadcast data recorded by the recording unit. It is possible to record and edit the data by re-recording the data with the deterioration of quality or error due to communication environment.

Bidirectional DMB recording, picture quality

Description

Apparatus and method for recording digital multimedia broadcasting}

1 is a flowchart of a conventional DMB broadcast recording operation.

2 is a block diagram showing the structure of a DMB broadcasting recording apparatus according to an embodiment of the present invention.

3 is a flowchart illustrating a DMB broadcast recording method according to an embodiment of the present invention.

The present invention relates to an apparatus and method for recording a digital multimedia broadcasting (DMB) broadcast, and more particularly, to an apparatus and method for recording a broadcast in a bidirectional DMB, and to compensate and edit the image quality of the recorded data.

DMB is a broadcasting service that provides various multimedia signals digitally to portable and in-vehicle receivers together with voice and video.It is a compact disc (CD) or a personal data assistant (PDA) or vehicle terminal on the go. It is a system that provides high quality, high quality broadcasting of DVD (Digital Versatile Disk) level.

DMB originally started with digital audio broadcasting, but with the development of technology for sending video and data together, the DMB has expanded into a multimedia service.

In addition, a terminal capable of watching DMB broadcasts has been developed to additionally configure a storage space so that a user can record a desired broadcast to view or collect later.

1 is a flowchart of a conventional DMB broadcast recording operation.

Referring to FIG. 1, in order to record a broadcast using a terminal capable of receiving a DMB broadcast, first access a DMB broadcast channel (S101), select a desired broadcast (S102), and then add the terminal to the terminal. Pressing the record button, which is a function, can record and store a broadcast in a storage space (S103).

Such a recording method is a method of recording a unidirectional DMB broadcast. If a signal is weak or there is no signal during recording, the screen is damaged and played back.

However, in the conventional method of recording DMB broadcasts, there was no method of recovering a damaged recording file, and a function of recording at a desired level of quality was not provided.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and when recording bidirectional DMB broadcasts, the recorded data is searched for an error or a request is made for the recorded portion to be lower than the desired image quality to compensate for and compensate for the image quality. It is an object of the present invention to provide a DMB recording apparatus and method for enabling recovery.

In the DMB recording apparatus according to the present invention to achieve the above object,

A DMB communication unit for accessing a DMB broadcasting system to receive digital multimedia broadcasting, a setting unit for setting the image quality of the DMB broadcasting data, a recording for recording the DMB broadcasting data with the image quality set in the setting unit and storing the recorded broadcast data. And a search unit for searching for the image quality or damage of the broadcast data stored in the recording unit, and a portion not recorded with a predetermined image quality or a portion in which the damage has occurred in the broadcast data retrieved by the search unit through the DMB communication unit. And a control unit for requesting the DMB broadcasting system, and an editing unit for editing the broadcast data of the corresponding part requested by the control unit to be combined with the corresponding part of the pre-recorded broadcast data.

In addition, the DMB recording method according to the present invention, setting the image quality for recording, selecting a broadcast for recording, recording and storing the selected DMB broadcast with a set image quality, search for the recorded broadcast data Extracting an unrecorded portion or a portion in which damage occurs at a predetermined image quality; requesting a portion not recorded at the predetermined image quality or a portion in which damage occurs from the recorded broadcast data to the DMB broadcasting system; Re-recording, and editing and inserting the re-recorded portion in the pre-recorded broadcast data.

delete

As mentioned above, the DMB recording apparatus and method according to the present invention can specify and record a desired quality in recording a bidirectional DMB broadcast, and re-request a portion of deteriorated image quality or an error occurrence even after recording. By recording, the recording file can be corrected so that a user can record a DMB broadcast having a desired image quality. Hereinafter, a DMB recording apparatus and method will be described in detail with reference to the accompanying drawings.

However, in the following description of the present invention, a detailed description will be omitted for the known parts.

2 is a block diagram showing the structure of a DMB broadcasting recording apparatus according to an embodiment of the present invention.

Referring to FIG. 2, an apparatus for recording a digital multimedia broadcasting (DMB) broadcast includes a DMB communication unit 210 capable of bidirectional communication with a DMB communication network, and a quality of a DMB broadcast received through the DMB communication unit 270. The setting unit 230, the recording unit 240 for recording the received DMB broadcast, the search unit 250 for searching the DMB broadcast and performing the recorded data search, and editing the recorded DMB broadcast A control unit 260 for performing system control including an editing unit, the editing unit 220, a setting unit 230, a recording unit 240, a search unit 250, and a DMB communication unit 270, and recorded DMB broadcast data. It is configured to include a storage unit 270 is stored.

The above configuration is a device configured for recording of the DMB broadcast, and a functional block for broadcasting viewing or the like that is not related to the gist of the present invention is omitted.

The DMB communication unit 210 is a communication module that enables two-way communication with the DMB broadcasting system, the setting unit 230 may be set to the desired image quality when watching or recording the DMB broadcast, and the recording unit 240 is a user The selected broadcast is recorded and stored in the storage unit 270.

The search unit 250 includes a function of searching for a channel of the DMB broadcast and a function of searching for recorded data, and in the case of searching for recorded broadcast data, which part corresponds to a user's desired condition or part of which an error has occurred. Search for recognition.

The controller 260 controls operations of the DMB communication unit 210, the editing unit 220, the setting unit 230, the recording unit 240, the search unit 250, and the storage unit 270.

In the DMB broadcasting recording apparatus including the above configuration, the user sets the desired image quality through the setting unit 230 and searches for the channel desired for recording among the DMB broadcasts received by the DMB communication unit 210 through the search unit 250. After setting, the recording unit 240 stores the broadcast in the storage unit 270 with the set image quality.

After all broadcasts have been recorded, the searcher 250 searches the corresponding recorded data to determine whether there is a portion that is lower than the set quality, and whether there is an error.

As a result of the determination, if the image quality is lower than the setting or an error occurs, the controller 260 searches for the DMB channel recording the broadcast through the search unit 250 and requests the corresponding broadcast data through the DMB communication unit 210. Record the part again.

Since the DMB communication unit 210 is capable of bidirectional communication, it is possible to request and receive necessary broadcast data as described above.

After re-recording the necessary portion, the editing unit 220 edits only the corresponding portion of the first recorded broadcast data into newly recorded data to create broadcast data having a user-defined quality.

The DMB recording and image quality improvement will be described in more detail as follows.

3 is a flowchart illustrating a DMB broadcast recording method according to an embodiment of the present invention.

Referring to FIG. 3, in order to record a DMB broadcast, a user first sets a degree of image quality desired by the user through the setting unit 230 (S301).

After accessing the DMB through the DMB communication unit 210, a broadcast for searching and recording a desired channel is selected (S302).

If the user selects a broadcast and then selects recording, the recording unit 240 records the DMB broadcast of the designated channel with the set image quality and stores the data in the storage unit 270 (S303).

When all of the broadcasts specified by the user are recorded, the search unit 250 searches whether the recorded broadcast data is recorded without error at the image quality set by the user (S304), and whether the image quality is deteriorated or there is data caused by an error. It is determined whether or not (S305).

If there is data having a problem as a result of the determination in step S305, the control unit 260 accesses the DMB broadcast through the DMB communication unit 210, requests to retransmit only the problematic data portion by moving to a channel providing the corresponding broadcast data ( S306, S307).

As mentioned above, the data request and reception are possible because the DMB broadcast according to the embodiment of the present invention is a bidirectional broadcast.

On the other hand, the DMB broadcast side retransmits the broadcast data portion requested in step S307, and the recording apparatus records it according to the set picture quality (S308).

The recorded data is once again confirmed to be recorded according to the set image quality. In the embodiment of the present invention, the repetitive process is omitted in FIG. 3, and the description is based on the premise that the problematic data is re-recorded according to the set image quality. would.

After the problem data has been properly recorded again, the editing unit 220 edits the first recorded data recorded in step S303 and the data recorded again in step S308, combines them into one broadcast data, and sets the broadcast set by the user. The recorded data can be completely completed (S309).

DMB recording apparatus and method according to an embodiment of the present invention when the bidirectional DMB broadcast is provided, the desired broadcast is recorded in the desired image quality, re-recording by re-requesting only the portion of the video quality degradation or error caused by various factors Thereafter, by editing the original recorded data, the user can obtain broadcast data having a desired image quality, and a person skilled in the art who understands the present invention correctly can make a decision by selecting a component within the scope of the present invention. It is easy to create another embodiment.

The DMB recording apparatus and method according to the present invention as described above can set the image quality of the DMB broadcast desired to record, and add a function of re-recording and editing the recorded portion different from the set image quality, This has the effect of obtaining broadcast data.

Claims (7)

In the device for recording digital multimedia broadcasting (DMB: Digital mulitmedia broadcasting), A DMB communication unit connected to a DMB broadcasting system to receive digital multimedia broadcasting; A setting unit for setting a quality of the DMB broadcasting data; A recording unit for recording the DMB broadcast data with the image quality set by the setting unit and storing the recorded broadcast data; A search unit for searching for the image quality or damage to the broadcast data stored in the recording unit; A control unit for requesting, through the DMB communication unit, a portion not recorded with a predetermined image quality or a portion in which damage occurs in the broadcast data searched by the search unit to the DMB broadcasting system; And an editing unit for editing the broadcast data of the corresponding part requested by the controller to be combined with the corresponding part of the pre-recorded broadcast data. Digital multimedia broadcast recording device. The method of claim 1, A storage unit for storing DMB broadcast data recorded by the recording unit Digital multimedia broadcast recording device further comprising. The method of claim 1, The DMB communication unit is a digital multimedia broadcasting recording apparatus, characterized in that bidirectional communication with the DMB broadcasting system. In the method of recording a DMB broadcast, Setting a picture quality for recording and selecting a broadcast for recording; Recording and storing the selected DMB broadcast in a set image quality; Retrieving the recorded broadcast data and extracting a portion not recorded or a portion in which damage occurs at a predetermined image quality; Re-requesting and re-recording the unrecorded portion or the damaged portion with the preset image quality extracted from the recorded broadcast data to the DMB broadcasting system; And editing and reinserting the re-recorded portion into pre-recorded broadcast data. Digital multimedia broadcast recording method. 5. The method of claim 4, Searching for a corresponding portion of the re-recorded broadcast data to determine whether a preset image quality or damage has occurred; And If the corresponding portion of the re-recorded broadcast data set as a result of the determination is not recorded in the preset image quality or damage occurs, re-recording the corresponding portion; Digital multimedia broadcast recording method. 5. The method of claim 4, And deleting the extracted part data from the pre-recorded broadcast data and inserting and editing the re-recorded data. 5. The method of claim 4, The DMB broadcast is a digital multimedia broadcast recording method characterized in that bi-directional communication is possible.

Images