KR20010054379A - Method for recording back-up data in a multiple data bit stream recording device - Google Patents

Method for recording back-up data in a multiple data bit stream recording device Download PDF

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Publication number
KR20010054379A
KR20010054379A KR1019990055176A KR19990055176A KR20010054379A KR 20010054379 A KR20010054379 A KR 20010054379A KR 1019990055176 A KR1019990055176 A KR 1019990055176A KR 19990055176 A KR19990055176 A KR 19990055176A KR 20010054379 A KR20010054379 A KR 20010054379A
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KR
South Korea
Prior art keywords
data
recording
bit stream
recording medium
backup
Prior art date
Application number
KR1019990055176A
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Korean (ko)
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KR100744369B1 (en
Inventor
박성욱
문성진
이희수
Original Assignee
윤종용
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019990055176A priority Critical patent/KR100744369B1/en
Publication of KR20010054379A publication Critical patent/KR20010054379A/en
Application granted granted Critical
Publication of KR100744369B1 publication Critical patent/KR100744369B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Characteristics of or Internal components of the client
    • H04N21/42661Characteristics of or Internal components of the client for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • H04N21/42669Characteristics of or Internal components of the client for reading from or writing on a magnetic storage medium, e.g. hard disk drive the medium being removable
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations

Abstract

The present invention provides a backup data recording method for preventing data corruption in a multiple data bit stream recording apparatus storing a plurality of channel data bit streams on a recording medium, wherein the input multiple channel data bit streams are stored in advance on the recording medium. Storing in the set area, generating backup data for the input stored data bit stream original data, and storing the backup data at a position spaced apart from the position on the recording medium in which the original data is stored. It is characterized by the configuration.

Description

BACKUP DATA RECORDING METHOD FOR PREVENTING DATA DAMAGE IN MULTIPLE DATA BIT STREAM RECORDING DEVICES METHODE FOR RECORDING BACK-UP DATA IN A MULTIPLE DATA BIT STREAM RECORDING DEVICE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording a plurality of channels of digital audio / video data bit streams on a recording medium. The present invention relates to a recording apparatus having a hard disk drive (HDD) as the recording medium. The present invention relates to a backup data recording method for preventing data corruption in recording a data bit stream on a recording medium.

Recently, the HDD, which is an auxiliary memory device of a computer system, can be randomly accessed, and has been used as a random access storage device of a broadcast receiving system because of its high data transfer speed and low cost and large capacity than other auxiliary memory devices. .

Accordingly, a user may use various broadcast programs received from broadcasting stations and various video / audio data bit streams received from an external network service provider using a broadcast receiving system having a hard disk as a recording medium for storing the data bit streams of the multiple channels. Can be recorded and played back. In this case, the broadcast receiving system stores the data bit streams of a plurality of input channels on a hard disk which is a recording medium. Backup data will be created and saved separately.

However, conventionally, in recording the backup data on a recording medium, the backup data is stored in a physically adjacent position on the recording medium.

FIG. 1 is a view illustrating a storage state of original data and backup data on a hard disk in which backup data is generated and stored to prepare for damage of original data when the hard disk is used as the recording medium. As shown, the backup data b_data is stored in an adjacent position of the area where the original data o_data is stored on the hard disk 100, so that physical damage due to fingerprints or scratches on the surface of the disk is prevented. If the original data (o_data) and the backup data (b_data) stored in the adjacent area are damaged at the same time, recovery of the original data (o_data) is difficult.

As described above, in the conventional multi-data bit stream recording apparatus, the physical damage on the recording medium includes the storage area of the original data by storing backup data in preparation for the damage of the original data in an adjacent position of the area where the original data is stored on the recording medium. Therefore, there was a problem that the original data can not be restored when the adjacent backup data storage area occurs.

Accordingly, an object of the present invention is to place the original data and backup data on a recording medium spaced apart from each other on the recording medium so that even if the original data is damaged due to physical damage on the recording medium in the multiple data bit stream recorder It is to provide a backup data recording method for storing.

1 is a view showing a storage state of original data and backup data on a conventional recording medium;

2 is a block diagram of a broadcast receiving system to which an embodiment of the present invention is applied;

3 is a backup data recording process flow chart for preventing data corruption according to an embodiment of the present invention;

4 is an exemplary diagram illustrating a storage state of original data and backup data on a recording medium according to an embodiment of the present invention.

The present invention for achieving the above object is a backup data recording method for preventing data corruption in a multiple data bit stream recording apparatus for storing a plurality of channel data bit streams on a recording medium, wherein the input plurality of channel data bits Storing the stream in a predetermined area on the recording medium; generating backup data for the input stored data bit stream original data; and storing the backup data from a location on the recording medium on which the original data is stored. Characterized in that it comprises a process of storing in a location.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description and in the accompanying drawings, in order to provide a more thorough understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

FIG. 2 is a schematic block diagram of a broadcast receiving system having a hard disk as the recording medium among recording devices for recording multiple data bit streams to which an embodiment of the present invention is applied. Referring to FIG. 2, the broadcast receiving system according to an embodiment of the present invention includes a broadcast signal receiver 212, a buffer and time stamp inserter 204, a buffer and timing playback unit 210, and a main control unit (MCU). ) 206, HDD 208 and external network connection 202.

The broadcast signal receiving unit 212 includes an RF tuner for receiving a digital broadcast signal input from the outside, a plurality of RF tuners for receiving an analog broadcast signal input from the outside, and an analog signal input through the plurality of RF tuners. It consists of a plurality of data compressors that convert digital signals and compress them into multimedia files (AV files). The external network connection unit 202 receives and outputs a multimedia file from an external network 200 such as an IEEE 1394 network. The buffer and time stamp inserter 204 controls the buffering of the multimedia file input from the broadcast signal receiving unit 212 and the external network connection unit 202, and at the 27 MHz clock when the source packet constituting the multimedia file arrives. It captures the incremental internal counter value and inserts it into the input source packet to output it. MCU 206 controls the overall operation of the broadcast receiving system according to an embodiment of the present invention. For example, the multimedia file (or binary file or text file) output from the buffer and time stamp inserting unit 204 is controlled to record and store in the file recording area of the HDD 208. The playback control of the file recorded in each data storage means is also performed. Meanwhile, the buffer and timing reproducing unit 210 not only temporarily stores the multimedia file played by the HDD 208, but also reads the time stamped source packet constituting the multimedia file from the buffer and writes the time stamp. In this case, the source packet except for the time stamp is output to an A / V decoder (not shown).

FIG. 3 is a diagram of FIG. 2 for recording backup data for preventing data corruption in recording a data stream of a plurality of channels on a hard disk in a broadcast receiving system having a hard disk as the recording medium according to an embodiment of the present invention. A processing flow diagram in the MCU 206 is shown. Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3.

First, when a data bit stream of a plurality of channels is input through the broadcast signal receiving unit 212 or the external network connection unit 202 of FIG. 2, the MCU 206 responds to the step 302 in step 300 of FIG. 3. Proceed to step. Subsequently, the MCU 206 stores the input data bit stream in a predetermined area on the hard disk 100 of the HDD 208 in step 302, and proceeds to step 304 to store the input stored original data. Create backup data (b_data) for (o_data).

In other words, the MCU 206 is a source data (o_data) due to physical damage on the hard disk 100, such as a scratch, on a data bit stream of a plurality of channels input through the broadcast signal receiver 212 or the external network connection unit 202. Considering that damage may occur, the backup data b_data for the input source data o_data is generated as in step 304. As described above, in the related art, the backup data b_data is stored in an adjacent position of the area where the original data o_data is stored on the hard disk 100 as shown in FIG. If the original data (o_data) occurs on the hard disk 100 and is damaged, the backup data (b_data) stored in the adjacent area may be damaged at the same time, thereby making it difficult to recover the original data (o_data). Accordingly, the MCU 206 proceeds from step 304 to step 306 to store the backup data b_data generated in step 304, as shown in FIG. 4. The backup data b_data is stored in a location spaced apart from a storage area of the original data o_data on the hard disk 100. That is, as shown in FIG. 4, for example, if the original data o_data is stored in the outer peripheral area on the hard disk 100, the backup data b_data is stored in the inner peripheral area so that the original data o_data and the backup data b_data are stored. ) Is to be spaced apart on the hard disk (100).

Therefore, the storage area of the original data (o_data) and the backup data (b_data) to be spaced apart from each other on the hard disk 100, the scratch (S) as shown in Figure 4 stores the original data (o_data) on the hard disk 100 Even if an area including an area occurs up to an adjacent backup data (b_data) storage area, damage to the backup data (b_data) can be prevented.

As described above, according to the present invention, the storage area of the original data and the backup data is spaced apart from each other on the hard disk so that even if physical damage such as scratch occurs in the adjacent area including the original data storage area on the hard disk, There is an advantage that can prevent the damage of.

Claims (4)

  1. A backup data recording method for preventing data corruption in a multiple data bit stream recording apparatus storing a plurality of channel data bit streams on a recording medium,
    Storing data generated internally for the input plurality of channel data bit streams in a predetermined area on the recording medium;
    Generating backup data of the original data of the internally generated data;
    And storing the backup data at a position spaced apart from the position on the recording medium on which the original data is stored.
  2. The method of claim 1, wherein the internally generated data,
    Backup data recording method for preventing data corruption in the multiple data bit stream recording apparatus, characterized in that the navigation data for the input stored data bit stream.
  3. The method of claim 1, wherein the recording medium,
    Backup data recording method for data corruption prevention in a multiple data bit stream recording apparatus characterized in that the hard disk.
  4. The method of claim 3, wherein the original data and the backup data,
    Backup data recording method for preventing data corruption in the multiple data bit stream recording apparatus, characterized in that to be stored spaced apart from different sectors and tracks on the hard disk.
KR1019990055176A 1999-12-06 1999-12-06 Method for recording back-up data in a multiple data bit stream recording device KR100744369B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990055176A KR100744369B1 (en) 1999-12-06 1999-12-06 Method for recording back-up data in a multiple data bit stream recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990055176A KR100744369B1 (en) 1999-12-06 1999-12-06 Method for recording back-up data in a multiple data bit stream recording device

Publications (2)

Publication Number Publication Date
KR20010054379A true KR20010054379A (en) 2001-07-02
KR100744369B1 KR100744369B1 (en) 2007-07-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005086599A3 (en) * 2004-03-12 2005-12-22 Byung Jin Kim Recording medium, method and apparatus for recording on recordable recording medium, and method for managing backup files of the same
US7167961B2 (en) 2003-02-05 2007-01-23 Samsung Electronics Co., Ltd. Single head disk drive having backup system information and method of recording and/or reading system information thereof
US8271752B2 (en) 2004-03-12 2012-09-18 Lg Electronics, Inc. Recording medium, method and apparatus for recording on recordable recording medium, and method for managing backup files of the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980052698A (en) * 1996-12-24 1998-09-25 김광호 Data storage device with RAID controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7167961B2 (en) 2003-02-05 2007-01-23 Samsung Electronics Co., Ltd. Single head disk drive having backup system information and method of recording and/or reading system information thereof
WO2005086599A3 (en) * 2004-03-12 2005-12-22 Byung Jin Kim Recording medium, method and apparatus for recording on recordable recording medium, and method for managing backup files of the same
US7644243B2 (en) 2004-03-12 2010-01-05 Lg Electronics, Inc. Recording medium, method and apparatus for recording on recordable recording medium, and method for managing backup files of the same
US8271752B2 (en) 2004-03-12 2012-09-18 Lg Electronics, Inc. Recording medium, method and apparatus for recording on recordable recording medium, and method for managing backup files of the same

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