WO2010113480A1 - Dispositif d'enregistrement de programme, procédé de commande d'un appareil d'enregistrement de programme, programme de commande et support d'enregistrement - Google Patents

Dispositif d'enregistrement de programme, procédé de commande d'un appareil d'enregistrement de programme, programme de commande et support d'enregistrement Download PDF

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Publication number
WO2010113480A1
WO2010113480A1 PCT/JP2010/002310 JP2010002310W WO2010113480A1 WO 2010113480 A1 WO2010113480 A1 WO 2010113480A1 JP 2010002310 W JP2010002310 W JP 2010002310W WO 2010113480 A1 WO2010113480 A1 WO 2010113480A1
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WIPO (PCT)
Prior art keywords
recording
content
area
storage unit
recorded
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PCT/JP2010/002310
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English (en)
Japanese (ja)
Inventor
上野博康
小田守
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シャープ株式会社
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Priority to JP2011507021A priority Critical patent/JPWO2010113480A1/ja
Publication of WO2010113480A1 publication Critical patent/WO2010113480A1/fr

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/40—Combinations of multiple record carriers

Definitions

  • the present invention relates to a program recording apparatus having a program recording function and a drive unit for a removable recording medium, a control method thereof, a control program, and a recording medium.
  • Video tape recorders are widely known as devices for recording / reproducing contents such as broadcasting.
  • a program recording apparatus for recording a broadcast program as a digital signal on a recording medium (recording medium) such as a hard disk or an optical disk (DVD, BD) has appeared.
  • a program recording apparatus has a built-in timer device and has a recording reservation function for automatically recording a program by specifying a date and time in advance.
  • the user himself / herself has to set the date and time when a desired broadcast program is broadcast to a timer device or the like.
  • broadcast program guide data Electronic Program Guide
  • the date and time data supported by the program recording apparatus is obtained.
  • a method of automatically capturing and automatically setting the date / time data as a recording date / time is known.
  • the program recording apparatus includes a predicting means for predicting the tendency of the program viewed by the user, so that it is automatically set according to the tendency of the broadcast program viewed by the user.
  • a method of executing recording reservation setting has been proposed.
  • a scheduled recording start time and a scheduled recording end time of a preset specific type of television broadcast specific to the optical disc are recorded among a plurality of types of television broadcasts that can be recorded on the optical disc.
  • reservation information including at least. Since the reservation information corresponding to the television broadcast unique to each optical disc is recorded, the corresponding information recording / reproducing apparatus reads the reservation information before recording the television broadcast, and based on the read reservation information. By selecting and recording a television broadcast to be recorded, it is possible to record only a television broadcast specific to the optical disc (for example, a continuous drama) in one optical disc.
  • the DVD recording / reproducing apparatus described in Patent Document 2 is a DVD recording / reproducing apparatus with a disk changer having a stocker for storing a plurality of disks.
  • the controller in the recording reservation execution process, the controller reads the disk ID of the recording reservation setting contents, stores the disk ID in the storage unit, and detects a disk that matches the disk ID of the recording reservation setting contents.
  • the disk ID of each disk stored in the stocker is sequentially read out and stored. When a disk with the matching disk ID is detected, the disk is extracted, and recording is performed based on the reservation setting contents.
  • the recording / reproducing apparatus described in Patent Document 3 is a recording / reproducing apparatus including an optical disk drive, a hard disk drive, and a network connection unit connected to the Internet.
  • This recording / reproducing apparatus acquires program information from a program information server on the Internet, and writes a program identification ID on an optical disc for a continuous program set to be recorded by a user.
  • This recording / reproducing apparatus records the continuous program on a specific optical disc. If the target optical disk is not set in the optical disk drive, the recording / reproducing apparatus records the continuous program on the hard disk.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 11-260043 (Publication Date: September 24, 1999)” Japanese Patent Publication “JP 2002-335485 A (publication date November 22, 2002)” Japanese Patent Publication “Japanese Unexamined Patent Application Publication No. 2004-80507 (Publication Date: March 11, 2004)”
  • the DVD recording / reproducing apparatus described in Patent Document 2 cannot record a reserved program when the target disc is not stored in the stocker. In addition, if a large number of disks are to be stored, the physical size of the DVD recording / reproducing apparatus increases. Further, since simultaneous recording on a plurality of discs is not possible, simultaneous recording of different programs on the plurality of discs at the same time cannot be performed. That is, only recording on any one disk can be performed.
  • the present invention has been made in view of the above problems, and an object of the present invention is to realize a program recording apparatus that can virtually handle recording media as if a plurality of recording media are loaded. It is.
  • a program recording apparatus includes a drive device, and a control unit that causes the drive device to record a program based on reserved recording information including recording medium designation information that designates one of a plurality of recording media as a recording destination.
  • the drive device can be loaded with the recording medium, and the control means is designated by the recording medium designation information and the recording medium designation information.
  • a write command including first area designation information for designating a storage area on the recording medium is input to the drive device together with data representing the program, and the drive device stores the storage unit, the write command, and the data. Is input to the storage unit, and on the storage unit to which the data is written by the writing unit.
  • a second area specifying information specifying the storage area, and a recording means for recording in the storage unit in association with the recording medium specifying information and the first area specifying information.
  • a recording method includes a drive device having a storage unit, and the drive device can be loaded with a recording medium, and includes recording medium designation information for designating one of the plurality of recording media as a recording destination.
  • An input step of giving a write command including first area designation information for designating an upper storage area together with data representing the program to the drive device, a writing step of writing the data into the storage unit, and the writing
  • second area designation information for designating a storage area on the storage section in which the data is written is designated as the recording medium designation information.
  • a recording step of recording in the storage unit in association with the first area specifying information.
  • the drive device specifies the recording medium designation information for designating one of the plurality of recording media, and the first area designation information for designating the area on the recording medium designated by the recording medium designation information.
  • the recording medium designation information and The information is recorded in the storage unit in association with the first area designation information.
  • the program recording apparatus should write the data recorded in the storage unit into any of the storage areas on the recording medium when the recording medium designated by the recording medium designation information is loaded into the drive device. I have information.
  • the program recording apparatus refers to the information indicating whether the data written in the storage unit should be written in any area of the specified recording medium, thereby specifying the specified recording medium. Can be read as access to the storage unit.
  • the program recording apparatus processes the data as if the designated recording medium is loaded even when the recording medium designated by the recording medium designation information is not loaded. There is an effect that can be. That is, there is an effect that data can be processed as if a plurality of recording media are always loaded.
  • a program recording apparatus includes a drive device, and a control unit that causes the drive device to record a program based on reserved recording information including recording medium designation information that designates one of a plurality of recording media as a recording destination.
  • the recording device can be loaded with the recording medium, and the control means stores the recording medium designation information and a storage area on the recording medium designated by the recording medium designation information.
  • a write command including first area designating information to be specified is input to the drive device together with data representing the program, and the drive device stores the storage unit, and the memory when the write command and the data are input.
  • a writing means for writing the data in the section, and a second area for designating a storage area on the storage section in which the data is written by the writing means The range designation information, and a recording means for recording in the storage unit in association with the recording medium specifying information and the first area specifying information.
  • a recording method includes a drive device having a storage unit, and the drive device can be loaded with a recording medium, and includes recording medium designation information for designating one of the plurality of recording media as a recording destination.
  • the program recording apparatus processes the data as if the designated recording medium is loaded even when the recording medium designated by the recording medium designation information is not loaded.
  • FIG. 1 It is a block diagram which shows the principal part structure of the recorder apparatus which concerns on embodiment. It is a figure which shows the initialization process of the memory
  • FIG. 6C is a diagram schematically illustrating the state of the disk and the My Disk
  • FIG. 5C is a diagram illustrating an example of display on the display device during the reservation registration process. It is a figure which shows the video recording process in the state in which my disk is loaded, (a) is the figure which showed typically the state of the memory
  • FIG. It is a figure which shows the state of each memory
  • (a) is a figure which shows the correspondence of the recording state of the disc 1 corresponding to the recording state of the content in the area
  • (b) It is a figure which shows the map table at the time of recording the content 1
  • (c) is a figure which shows the title management table at the time of recording the content 1.
  • FIG. It is a figure which shows the video recording process in the state in which the my disk is not loaded in the recorder apparatus which concerns on embodiment, (a) is the figure which showed typically the state of the memory
  • FIG. 3 is a diagram illustrating a state of a storage unit and a disc 1 after content synchronization processing.
  • FIG. 7 is a diagram showing a map table when the content 2 is synchronously processed
  • (c) is a diagram showing a title management table when the content 2 is synchronously processed.
  • FIG. 4 is a diagram showing the state of each storage unit when a disc 1 on which contents 1 to 3 are recorded is loaded. It is the figure which showed typically the medium from which a content is read at the time of reproduction
  • FIG. 4C shows a map correspondence table of files constituting the content 1.
  • FIG. 11 is a diagram showing the state of each storage unit when content 1 is recorded in a recorder apparatus according to another embodiment, where (a) shows the recording state of the disc 1 corresponding to the recording state of the content in region 1; It is a figure which shows a correspondence, (b) is a figure which shows the map table at the time of recording the content 1, (c) is a figure which shows the title management table at the time of recording the content 1.
  • the recorder device concerning other embodiments, it is the figure showing typically the storage part of the back end part after temporary registration processing of an optical disk. Furthermore, in the recorder apparatus which concerns on other embodiment, it is the figure which showed typically the state of the memory
  • Embodiment 1 The drive device provided in the recorder device according to the present embodiment is realized as a device for writing data on an optical disk or reading data from an optical disk. Therefore, this is hereinafter referred to as an optical disk drive device.
  • an optical disk drive device As the optical disc, a BD (Blu-ray Disc), a DVD (Digital Versatile Disc), a CD (Compact Disc), and the like are assumed.
  • the present invention is not limited to this, and can be generally applied to a drive device that writes data to a removable recording medium such as a flexible disk or a magneto-optical disk.
  • the recorder device reproduces not only a recording function for recording content on a removable optical disc (recording medium), but also content recorded on the optical disc and content acquired from the outside.
  • This is a recorder device having a reproduction function.
  • the recorder device records a program based on the reserved recording information.
  • FIG. 1 is a block diagram showing a main configuration of the recorder device 100.
  • the recorder device 100 includes a back-end unit 200 that generally performs reproduction or recording (recording) of content input to the recorder device 100, reading of data from a loaded optical disc, and A drive unit (drive device) 300 is provided to perform general data writing on the loaded optical disk.
  • a back-end unit 200 that generally performs reproduction or recording (recording) of content input to the recorder device 100, reading of data from a loaded optical disc
  • a drive unit (drive device) 300 is provided to perform general data writing on the loaded optical disk.
  • the drive unit 300 has the following new functions in addition to the functions of the conventional optical disk drive device. That is, (1) a registration function for registering a plurality of optical discs designated by the user as My Discs, and (2) when a write command to the optical discs registered as My Discs is given from the back-end unit 200, data is stored in the optical discs.
  • configuration examples of the back-end unit 200 and the drive unit 300 will be described in order below.
  • the back-end unit 200 includes a tuner unit 210, an encoder unit 220, a stream processing unit 230, a back-end control unit 240, a decoder unit 260, an image processing unit 270, a buffer unit 250, a storage unit 280, and an interface. Part 290.
  • the stream processing unit 230, the back-end control unit 240, the decoder unit 260, the image processing unit 270, the buffer unit 250, the storage unit 280, and the interface unit 290 are connected to each other via a bus line. ing.
  • the drive unit 300 includes an interface unit 310, a drive control unit 320, a disk drive unit 330, and a storage unit 340.
  • the interface unit 310, the drive control unit 320, the disk drive unit 330, and the storage unit 340 are connected to each other via a bus line.
  • an optical disc associated with each area in the storage unit 340 that is, an optical disc in which the media ID of the storage unit 340 is recorded is referred to as “my disc”.
  • My disc There is a one-to-one correspondence between MyDisk and each area.
  • the media ID is a unique identifier that each optical disc has.
  • the tuner unit 210 is a stream (Transport Stream: TS) in which video data, audio data, and the like are multiplexed from digital broadcast waves (for example, BS digital broadcast, CS digital broadcast, terrestrial digital broadcast) received by the antenna unit. To extract.
  • digital broadcast waves for example, BS digital broadcast, CS digital broadcast, terrestrial digital broadcast
  • the encoder unit 220 encodes the analog broadcast received by the antenna unit or the video / audio signal input from the outside into the MPEG2-TS format or the MPEG2-PS format.
  • the stream processing unit 230 separates and extracts individual data such as video data and audio data multiplexed in the extracted stream or the encoded stream, and a packet to which the same packet identifier (PID) is assigned.
  • the content data (PES packet) is restored by connecting the payload portions of (TS). Further, content data input via a network by a communication unit (not shown) is also processed in the stream processing unit 230.
  • the buffer unit 250 is a memory that temporarily stores content data (video data, audio data, etc.) to be output to the display device or the drive unit 300.
  • the buffer unit 250 generally uses a volatile memory, but may use a non-volatile memory.
  • the back-end control unit 240 controls overall recording and reproduction of content data in the recorder device 100.
  • the back-end control unit 240 When the content data restored in the stream processing unit 230 is recorded on the optical disc loaded in the drive unit 300, the back-end control unit 240 performs drive control via the interface unit 290 for a write command for writing to the optical disc.
  • the content data to be written is read from the buffer unit 250 and output to the drive unit 300 via the interface unit 290.
  • the back-end control unit 240 When playing back the content data recorded on the optical disk loaded in the drive unit 300, the back-end control unit 240 sends a read command for reading the content data from the optical disk to the drive unit 300, and the interface unit 290. To the drive control unit 320. At this time, the content data read from the optical disc is temporarily stored in the buffer unit 250.
  • the back-end control unit 240 controls the decoder unit 260 to decode the content data read from the buffer unit 250.
  • Decoder unit 260 In response to an instruction from the back-end control unit 240, the decoder unit 260 converts the content data stored in the buffer unit 250 into a clock (System Time Clock: STC) value generated in the back-end unit 200. Content data to which a matching time stamp (PTS) is assigned is read. Then, the read content data is decoded and output to the image processing unit 270.
  • STC System Time Clock
  • the image processing unit 270 performs high quality processing such as pixel interpolation and color adjustment to improve the display performance of moving image data such as frame rate conversion, and the moving image data subjected to the high quality processing Is output to a display device (not shown). That is, the image processing unit 270 generates a frame image to be used when actually displayed on the display device from the frame image decoded (decoded) by the decoder unit 260.
  • the image processing unit 270 applies to the moving image data subjected to the quality enhancement processing. To superimpose necessary additional information.
  • additional information for example, subtitles, title list, menu information, icons, etc.
  • the storage unit 280 stores a program for operating the back-end control unit 240 and various data referred to by the back-end control unit 240. Examples of data referred to by the back-end control unit 240 include reservation information and title management information. Details of the reservation information and the title management information will be described in detail below, and the description thereof is omitted here. Note that the storage unit 280 is preferably a non-volatile memory whose recorded contents are not erased even when the power is turned off.
  • the interface unit 290 outputs the input data to the drive unit 300 via the interface unit 310.
  • Examples of the interface unit 290 include SATA (Serial AT attachment). Note that ATA (AT attachment) is not limited to SATA whose transfer method is serial ATA, and PATA whose transfer method is parallel ATA may be used.
  • the interface unit 310 outputs the input data to the back-end unit 250 via the interface unit 290.
  • the interface unit 310 can also be a SATA (Serial AT attachment) similarly to the interface unit 290, but the interface unit 290 and the interface unit 310 are preferably interfaces of the same standard.
  • the interface units 290 and 310 are SATA will be described as an example.
  • the drive control unit 320 controls reading of data from the optical disc loaded in the disc drive unit 330 and writing of data to the optical disc, reading of data from the storage unit 340, and data to the storage unit 340. Control writing.
  • a command (a data read command from the optical disc or a data write command to the optical disc) input from the back end control unit 240 that is input via the interface unit 310, a data read command from the storage unit 340, Alternatively, it is replaced with a data write command to the storage unit 340.
  • the drive control unit 320 does not replace the command from the back end control unit 240 and loads Read data from the optical disc.
  • a write command and a read command from the back-end control unit 240 are ATA commands.
  • information disk that indicates which area in the storage unit 340 (area corresponding to a later-described my disk) data is written to.
  • the designation information is preferably included in the ATA command and output to the drive control unit 320.
  • the ATA command indicating the write target area information is output to specify the recording target area (target my disk) in the storage unit 340, and then the write command and write An ATA command representing the target data may be output to the drive control unit 340.
  • the write command includes disk designation information (recording medium designation information) and an address (first area designation information) that designates an area in which data is to be written. Note that the data to be written is output from the back end unit 200 to the drive unit 300 together with the write command.
  • the disk drive unit 330 operates based on an instruction from the drive control unit 320, and reads data from the loaded optical disk or writes data to the optical disk.
  • the disk drive unit 330 includes an optical pickup unit for reading data from a loaded optical disk and writing data to the optical disk.
  • the storage unit 340 is a data memory that stores data such as content data to be recorded on the optical disc in the recorder device 100.
  • the recording of content data in the storage unit 340 will be described in detail below, and the description thereof is omitted here.
  • the storage unit 340 is not particularly limited as long as the data access speed is higher than that of the optical disc, but is preferably a nonvolatile memory in which recorded contents are not erased even when the power is turned off. More specifically, it is preferable to use a flash memory.
  • the presetting in the recorder apparatus 100 can be roughly divided into two processes: an initialization process for the storage unit 340 and an optical disk registration process for the storage unit 340.
  • FIG. 2A and FIG. 2A and 2B are diagrams illustrating an initialization process of the storage unit 340.
  • FIG. 2A is an example of display on the display device when the storage unit 340 is initialized.
  • FIG. 2B is a diagram schematically illustrating the storage unit 340 after the initialization process.
  • the initialization process of the storage unit 340 is a process of virtually (logically) dividing the storage area in the storage unit 340 into as many partitions as the user desires. Note that the initialization processing of the storage unit 340 is executed only when the storage area is not virtually divided in the storage unit 340, and therefore the initialization processing in the storage unit 340 has already been performed. The initialization process is not executed for.
  • Initialization processing is executed by receiving an initialization processing execution instruction from the user via the operation input unit. That is, when the back-end control unit 240 receives an initialization processing execution instruction from the user, the back-end control unit 240 virtually determines the storage area of the storage unit 340 to the number designated by the user with respect to the drive control unit 320. Instruct to split. In response to the instruction from the back-end control unit 240, the drive control unit 320 virtually divides the storage unit 340 into a specified number of areas (partitions). The number of areas divided in the storage unit 340 matches the number of My Disks that can be registered. At this time, it is preferable to display an image as shown in FIG.
  • the number of regions virtually divided in the storage unit 340 may be a number explicitly designated by the user, such as “n (sheets)”, or may be a recording desired by the user. The number may be set according to the image quality.
  • FIG. 2B shows the storage unit 340 after the initialization process.
  • the storage unit 340 is virtually divided into n regions (region 1 to region n) desired by the user.
  • the storage unit 340 is provided with a management area in which management information for managing the areas 1 to n is recorded.
  • the management area can be divided into a my disk management area for managing areas 1 to n and a memory management area for managing my disk management areas.
  • Management information for managing each of the areas 1 to n is recorded in the My Disk Management Area.
  • an area in which management information for managing area 1 is recorded is referred to as “entry 1”, and an area in which management information for managing areas 2 to n is similarly recorded. These are called entries 2 to n.
  • entry 1 managing area 1 In entry 1 managing area 1, an entry number, an allocation flag, media ID information, allocation area information, media key information, and map information are recorded. Each of these pieces of information will be described below.
  • Entry number is information indicating which area is to be managed. For example, since entry 1 is management information for managing area 1, information indicating “1” is recorded as the entry number.
  • “Assignment flag” is a flag indicating whether or not the area is associated with MyDisk. In the state immediately after the initialization process, since my disk is not associated, information indicating that the assignment is not performed (here, “0”) is recorded.
  • Media ID is information indicating the media ID of the optical disc. In the initialization process stage, the media ID information is not recorded. The recording of the media ID information will be described later in the optical disk registration process.
  • Allocation area information is information representing a storage area of the storage unit 340 that can be used as each area.
  • the allocation area information for example, the start address and the end address of each area can be cited. Further, the storage capacity of each area may be recorded instead of the end address.
  • Media key information is key information for executing encryption used for copyright protection when data is recorded on an optical disc. Examples of the media key information include MKB (Media Key Block).
  • Map information includes, for each content recorded on the optical disc, a virtual address that is an address indicating an area of the optical disc in which the content is recorded, and an address that indicates an area on the storage unit 340 in which the content is recorded. This is information indicating the association with the physical address. The details of the map table recorded as the map information will be described in detail below, and the description is omitted here.
  • “entry number information” and “allocation area information” are recorded in the memory management area.
  • “Number of entries” is information indicating the number of regions virtually divided in the storage unit 340.
  • “Allocation area information” is information indicating an area used as a My Disk management area in the storage unit 340.
  • a surplus area generated when the storage unit 340 is virtually divided into areas 1 to n may be used as a spare area.
  • FIGS. 3A and 3B are diagrams illustrating an optical disk registration process
  • FIG. 3A is a diagram illustrating an example of display on the display device during the optical disk registration process
  • FIG. 3B is a diagram schematically showing the storage unit 340 after the optical disk registration process.
  • the optical disc registration process is a process of recording the media ID of the optical disc for the entry managing each area virtually divided in the storage unit 340.
  • the drive control unit 320 instructs the disc drive unit 330 to read the media ID of the optical disc from the loaded optical disc.
  • the drive control unit 320 determines whether the media ID read in the storage unit 340 is a media ID already recorded in an entry in the my disk management area. .
  • the drive control unit 320 When the read media ID is not recorded in any of the entries in the my disk management area, the drive control unit 320 indicates that the allocation flag is not allocated to the optical disk among the entries in the my disk management area.
  • the read media ID is recorded in the entry “0”.
  • the media ID information (identification information) is recorded in the entry.
  • the allocation flag in the entry in which the media ID information is recorded is changed to “1” indicating that the allocation is performed at the time when the media ID information is recorded.
  • information unique to the optical disc such as media key information is also recorded for the entry that recorded the media ID information at this time.
  • the drive control unit 320 records the media ID in response to an instruction from the user that the recorder device 100 records the media ID in the entry.
  • the drive control unit 320 records the media ID for the entry specified by the user.
  • FIG. 3 shows a state of the storage unit 340 after registration of the optical disc when the optical disc having the media ID “aaa” is recorded in the entry 1.
  • the optical disc When the media ID of the optical disc is recorded in the entry 1, the optical disc is associated with the area 1 managed by the entry 1 as shown in FIG.
  • an optical disc associated with each area in the storage unit 340 that is, an optical disc in which the media ID of the storage unit 340 is recorded is referred to as “my disc”.
  • the My Disk associated with the area 1 is referred to as “Disk 1”.
  • my disks associated with the areas 2 to n are referred to as “disks 2 to n”.
  • the content recording operation in the recorder apparatus 100 will be described below with reference to (a) to (c) of FIG. 4 to (a) to (c) of FIG.
  • the reservation recording process will be described as an example of the content recording operation.
  • the reservation recording process in the recorder apparatus 100 can be broadly divided into a reservation registration process and a recording process.
  • the recording process can be further divided into two processes: a recording process in a state where a my disk is loaded and a recording process in a state where a my disk is not loaded. Each of these processes in the scheduled recording process will be described below.
  • 4A to 4C are diagrams showing reservation registration processing in the recorder apparatus 100
  • FIG. 4A is a diagram schematically showing the state of the storage unit 280 after the reservation registration processing
  • 4B is a diagram schematically showing the state of the storage unit 340 and MyDisk 1 after the reservation registration process
  • FIG. 4C is a display on the display device during the reservation registration process. It is the figure which showed an example.
  • the reservation registration process is a process of registering reservation information in the storage unit 280 and the optical disc.
  • the reservation registration process will be described by taking as an example a case where the disk 1 associated with the area 1 of the storage unit 340 is loaded.
  • the back-end control unit 240 records the input reservation information in the reservation information management area of the storage unit 280.
  • the reservation information recorded in the reservation information management area of the storage unit 280 includes “recording channel”, “recording date” and “recording time” as well as “recording time” as shown in FIG.
  • Information on “Target My Disk” is included.
  • the recording target My Disc information will be described by taking the media ID of the loaded My Disc as an example, but other information may be used as long as the information can identify the My Disc.
  • Each piece of information included in the reservation information may be input by the user, or may be set based on program information representing a program selected by the user in the electronic program guide.
  • the back-end control unit 240 records the reservation information in the storage unit 280, and instructs the drive control unit 320 to write the reservation information to the disk 1 loaded in the drive unit 300.
  • the drive control unit 320 instructs the disk drive unit 330 to record the reservation information set by the user on the disk 1.
  • the disk drive unit 330 records the reservation information set by the user in a predetermined area (reservation information management area) of the disk 1 ((b) of FIG. 4). At this time, since the media ID is already recorded on the disc 1, it is not necessary to record the media ID.
  • the user may be able to select the recording target MyDisk when setting the reservation information. In this case, if the recording target my disk selected by the user is not loaded in the drive unit 300, the user is warned to load the target my disk in the drive unit 300 at the time of registration of the reservation information. It is preferable to do so.
  • FIG. 4 shows an example of an image displayed on the display device at the time of reservation registration when the disk 1 associated with the area 1 of the storage unit 340 is loaded.
  • FIGS. 5A and 5B are diagrams showing a recording process in a state where a My Disk is loaded.
  • FIG. 5A shows a storage unit 340 and My Disk 1 after the recording process.
  • FIG. 5B is a diagram schematically showing the state of the storage unit 280 after the recording process.
  • the back-end control unit 240 deletes the reservation information indicating the reserved recording of the content 1 from the reservation information management area in the storage unit 280.
  • the drive control unit 320 instructs the disc drive unit 330 to erase the reservation information recorded in the reservation information management area of the disc 1.
  • FIGS. 6A to 6C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 1 is recorded.
  • FIG. 6A shows the recording of the content in the area 1 of the storage unit 340.
  • FIG. 6B is a diagram illustrating a map table when the content 1 is recorded, and
  • FIG. 6C is a diagram illustrating the content 1 corresponding to the recording status of the disc 1 corresponding to the status. It is a figure which shows the title management table at the time of recording.
  • the data capacity of the area 1 of the storage unit 340 and the disk 1 are different. Therefore, in the area 1, a virtual address that matches the address (first area designation information) in the disk 1 is assigned separately from the physical address. By reading or writing data using this virtual address, the content stored in the storage unit 340 is recorded on the disc 1 loaded in the drive unit 300 in the back-end unit 200. Can be handled.
  • a storage area represented by using a virtual address set in each area of the storage unit 340 is referred to as a “virtual disk image”.
  • FIG. 6A shows a virtual disk image in the area 1 of the storage unit 340.
  • FIG. 6A As shown in FIG. 6A, in the area 1 of the storage unit 340, content 1 (data capacity: XGB) is recorded with the physical address (second area designation information) “0x000” as the head address. On the virtual disk image, the content 1 is recorded with the virtual address “0x050” as the head address. That is, when the content 1 is written to the disc 1, the drive control unit 320 instructs the disc drive unit 330 to write the content 1 from the sector representing the address “0x050” of the disc 1. As a result, content recording from the area 1 to the disc 1 can be easily executed.
  • the map table is recorded as map information in the My Disk management area of the storage unit 340. As shown in FIG. 6B, the map table records a virtual disk map representing a map in the virtual disk image and a memory map representing a map in the area 1 of the storage unit 340 in association with each content. ing. Further, a synchronization flag indicating whether or not the content is recorded on the My Disc is recorded in association with the content.
  • synchronization process a state where content recorded in a certain area of the storage unit 340 is recorded on a My Disk associated with the certain area.
  • synchronization process a process in which content recorded in a certain area of the storage unit 340 is recorded on a My Disk associated with the certain area.
  • FIG. 6B shows a map table when the area 1 of the storage unit 340 is in the state shown in FIG.
  • “0x050” is set as the head address in the virtual disk map in content 1
  • XGB is set as the data size
  • “0x000” is set as the head address in the memory map. Is set, and XGB is set as the data size.
  • the writing from the area 1 to the disc 1 is completed, and the synchronization flag in the map table becomes “1” indicating that the content is recorded on the My Disc.
  • the drive control unit 320 that has received a write command to the disk 1 from the back-end control unit 240 sends the write command to the disk 1 received from the back-end control unit 240 to the area 1. Can be changed to a write command. Similarly, a read command from the disk 1 can be changed to a read command from the area 1 by referring to the map table.
  • the entry parameter in FIG. 6B is an area for recording an entry number, media ID information, allocation area information, and the like, and the entry data area is for recording media key information and track information in area 1. It is an area to do.
  • the content 1 is recorded in the area 1 and the title management table recorded as the title management information in the title management area of the disc 1 in the storage unit 280 is updated.
  • the title management table recorded in the content management area in which information related to the content 1 is set will be described with reference to FIG. Note that as many title management areas as the number of areas virtually divided in the storage unit 340 are provided in the storage unit 280.
  • the title management table as shown in FIG. 6C, for the title name indicating each content, the required time for content reproduction, the image quality of content reproduction, and the number of remaining dubbing times (maximum 10).
  • information indicating the synchronization state is recorded in association with each other. Note that a title indicating the content 1 is described as a title 1. Similarly, titles indicating content 2 to content n are written as title 2 to title n.
  • FIG. 6C shows an example of the title management table when the map table shown in FIG. 6B is set. At this time, since the content 1 is recorded on the disc 1, the remaining dubbing count in the title 1 is subtracted once from the remaining 10 times to “9” times.
  • FIG. 7 (a) is a storage unit after the recording process.
  • FIG. 7B is a diagram schematically illustrating the state of the storage unit 280 after the recording process.
  • the recorder apparatus 100 when the recording of the content (content 2) recorded by the reservation information recorded in the reservation information management area of the storage unit 280 is started, the disc 1 is not loaded in the drive unit 300. Even so, the back-end control unit 240 instructs the drive control unit 320 to record the content 2 on the disc 1.
  • the drive control unit 320 that has received an instruction from the back-end control unit 240 receives a write command from the back-end unit 240 to the disk 1 in the area 1 of the storage unit 340 because the disk 1 is not loaded in the disk drive unit 320.
  • the content 2 is recorded in the area 1. At this time, since the disc 1 is not loaded in the drive unit 300, the process of recording the content 2 on the disc 1 is not executed.
  • the back-end control unit 240 deletes the reservation information indicating the reservation recording of the content 2 from the reservation information management area in the storage unit 280.
  • FIGS. 8A to 8C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is recorded
  • FIG. 8A is a diagram showing the contents of the area 1 in the storage unit 340
  • FIG. 8B is a diagram showing a correspondence relationship between recording states of the disc 1 corresponding to the recording state
  • FIG. 8B is a diagram showing a map table when the content 2 is recorded
  • FIG. It is a figure which shows the title management table at the time of recording.
  • content 1 data capacity: XGB
  • content 2 data capacity: XGB
  • the content 2 is recorded following the content 1 with the virtual address “0x250” as the head address even on the virtual disk image. Since the disc 1 is not loaded in the drive unit 300, the content 2 is naturally not recorded on the disc 1.
  • FIG. 8B shows a map table in which the area 1 of the storage unit 340 is in the state shown in FIG.
  • “0x250” is set as the start address in the virtual disk map in content 2
  • XGB is set as the data size.
  • “0x200” is set as the head address in the memory map
  • XGB is set as the data size.
  • the synchronization flag of the content 2 in the map table is “0” indicating that the content is not recorded on the My Disc.
  • FIG. 8C shows an example of the title management table when the map table shown in FIG. 8B is set.
  • the title management table in addition to the title management information of the title 1 indicating the content 1 shown in FIG. 6C, the title management information of the title 2 indicating the content 2 is stored. Added. Since the title 2 is not recorded on the disc 1 at this time, the remaining dubbing count in the title 2 remains “10”, and the synchronization state is information indicating unsynchronization.
  • the drive control unit 320 refers to the map table of the entry 1 and determines whether there is content whose synchronization flag is “0”. For example, when there is content 2 whose synchronization flag is “0”, the drive control unit 320 records the content 2 recorded in the area 1 of the storage unit 340 on the disc 1 so as to record (write out) the content 2 on the disc 1.
  • the unit 330 is instructed.
  • the disc drive unit 330 writes the content 2 recorded in the area 1 of the storage unit 340 to the disc 1 in response to an instruction from the drive control unit 320.
  • the contents 1 and 2 recorded in the area 1 of the storage unit 340 are both recorded on the disc 1 (FIG. 9). That is, the content 2 is in a synchronized state.
  • the drive control unit 320 When the writing of the content 2 to the disc 1 is completed, the drive control unit 320 notifies the back-end unit 300 that the content 2 synchronization processing has been completed. Upon receiving this notification, the back end control unit 240 updates the title management table recorded in the title management area of the disc 1 in the storage unit 280.
  • FIG. 9 is a diagram showing the state of the storage unit 340 and the disc 1 after the content synchronization processing.
  • 10A to 10C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is synchronously processed.
  • FIG. 10A shows the content in the area 1 of the storage unit 340.
  • FIG. 10B is a diagram showing a map table when the content 2 is synchronously processed
  • FIG. 10C is a diagram showing the correspondence relationship of the recording status of the disc 1 corresponding to the recording status of FIG.
  • FIG. 4 is a diagram illustrating a title management table when content 2 is subjected to synchronization processing.
  • the content 2 is recorded with the virtual address “0x250” as the head address.
  • the content 1 since the content 1 can be recorded on the disc 1 with “0x250” as the head address, the content 2 is recorded on the disc 1 with the address “0x250” of the disc 1 as the head address.
  • the synchronization flag of the map table recorded in the map information of the entry 1 indicates that the content is recorded on the My Disk. 1 ".
  • the remaining dubbing count in the title 2 is decremented by 1 to “9” times, and the synchronization state Is changed to information indicating synchronization.
  • FIGS. 11A to 11D are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 2 is synchronously processed.
  • FIG. 11A shows the top of the content 2 in the virtual disk image.
  • FIG. 11 is a diagram showing a state in which the content 3 having the address as the head address is recorded on the disc 1
  • FIG. 11B is a diagram showing a state in which the virtual disc image is changed so that the content 2 follows the content 3.
  • 11C is a diagram showing a map table when the content 2 is synchronously processed
  • FIG. 11D is a diagram showing a title management table when the content 2 is synchronously processed. .
  • the drive control unit 320 can record the content 2 on the disc 1 by changing the virtual disc image in the storage unit 340. That is, the drive control unit 320 sets the content 3 recorded with the address “0x250” as the head address in the disk 1 so that the virtual address “0x250” is recorded as the head address in the virtual disk image. The content 2 is set to follow the content 3 so that the virtual address “0x400” is recorded as the head address. That is, the drive control unit 320 changes the virtual disk image in the area 1. Thus, in the changed virtual disk image, the start address of the content 2 is “0x400”, so that the content 2 can be recorded on the disk 1 with “0x400” as the start address.
  • the map table of area 1 is also changed as shown in FIG. That is, the top address of the content 2 in the virtual disc map is “0x400”, which is “1” indicating that the content is recorded on the My Disc. Also, in the virtual disk map, the content 3 having a head address “0x250” and a content capacity of YGB is registered. Since the content 3 is content that is not recorded in the area 1, the start address is not recorded in the memory map, and the synchronization flag is not recorded.
  • the synchronization state associated with the title 2 is changed to information indicating synchronization, and the title 3 indicating the content 3 is displayed.
  • Information (reproduction time and reproduction image quality) associated with is registered. At this time, the content 3 is content recorded only on the disc 1 and cannot be dubbed, so the remaining number of times of dubbing in the title 3 is not displayed.
  • the recorder device 100 can manage the virtual disk map of the My Disk based on the map information, it can keep track of the free capacity of the My Disk after the My Disk is removed.
  • deletion of the content recorded in the area 1 may be executed according to a user instruction, or may be automatically executed when the free space in the area 1 becomes a predetermined value or less. Good. In this case, it is preferable to delete the content synchronized with the disc 1 with priority. If there is content that is not synchronized with the disc 1, it is preferable to confirm with the user whether or not to delete the content.
  • FIG. 12 is a diagram showing a state of the storage unit 340 and the disc 1 when the content 4 is newly recorded after the content 1 and the content 2 recorded in the area 1 are deleted.
  • the content 4 is also recorded on the disc 1 for recording in a state where the My Disc is loaded.
  • FIGS. 13A to 13C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 4 is recorded.
  • FIG. 13A is a diagram showing the contents in the area 1 of the storage unit 340.
  • FIG. 13B is a diagram showing a correspondence table of the recording state of the disc 1 corresponding to the recording state
  • FIG. 13B is a diagram showing a map table when the content 4 is recorded
  • FIG. It is a figure which shows the title management table at the time of recording.
  • the drive control unit 320 deletes the information regarding the content 1 and the content 2 from the memory map in the map table recorded in the entry 1 of the storage unit 340.
  • the drive control unit 320 also deletes the synchronization flag associated with the contents 1 and 2.
  • the contents 1 and 2 remain on the virtual disk image without being erased. That is, as shown in FIG. 13B, even if the contents 1 and 2 are deleted from the area 1, the information on the contents 1 and 2 is not deleted from the virtual disk map in the map table. It will be.
  • the drive control unit 320 instructs the disk drive unit 330 to record the content 4 so as to follow the content 2 already recorded in the virtual disk image, that is, the virtual address “0x650”.
  • the title management table in the storage unit 280 is also changed as the contents 1 and 2 are deleted from the area 1.
  • the back-end control unit 240 deletes information indicating the remaining number of dubbing times and the synchronization state of the content 1 and the content 2 in the title management table in the storage unit 280. To do.
  • the back-end control unit 240 registers information related to the title (title 4) indicating the content 4 in the title management table.
  • the content playback process is a process executed in response to a content playback instruction from the user via the operation input unit. For example, when the user selects playback of a title displayed on the display device, the back-end control unit 240 executes the content playback process on the assumption that the playback instruction of the content represented by the selected title has been received.
  • the title displayed on the display device is a title recognized by the back-end unit 200.
  • the title recognized in the back-end unit 200 can be rephrased as the title registered in the title management table recorded in the title management area of the storage unit 280.
  • the content playback operation in the recorder apparatus 100 can be broadly divided into playback processing when a My Disc is loaded and playback processing when a My Disc is not loaded. Each reproduction process will be described below.
  • FIG. 14 is a diagram showing the states of the storage unit 340 and the storage unit 280 when the disc 1 on which the contents 1 to 3 are recorded is loaded.
  • FIG. 15 is a diagram schematically showing a medium from which content is read during reproduction when a My Disc is loaded.
  • the disc 300 on which the contents 1 to 3 are recorded is loaded in the drive unit 300, and the contents 1 and 2 are recorded in the area 1 of the storage unit 340. Therefore, information on titles 1 to 3 is recorded in the title management table in the title management area of the storage unit 280. That is, the back-end unit 200 can recognize the contents 1 to 3 represented by the titles 1 to 3. In FIG. 14, the details of the title management table are omitted.
  • the back end control unit 240 outputs a command to read the content 1 recorded on the disc 1 to the drive unit 300 via the interface unit 290.
  • the drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 1 recorded on the disc 1 is recorded in the area 1.
  • the drive control unit 320 reads the read command from the disc 1 received from the back-end control unit 240 from the area 1 with reference to the map table. Is converted into a read instruction. That is, the drive control unit 320 converts the address of the disk 1 into the physical address of the area 1 with reference to the map table.
  • the drive control unit 320 that has read the content 1 from the area 1 outputs the read content 1 to the back-end unit 200 via the interface unit 310.
  • the content to be read is recorded on both the My Disc and the storage unit 340, the content is read from the storage unit 340 as shown in FIG.
  • the back-end control unit 240 when playing back the content 3 recorded on the disc 1 but not recorded in the area 1, the back-end control unit 240 sends an instruction for reading the content 3 recorded on the disc 1 to the interface unit 290.
  • the drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 3 recorded on the disc 1 is recorded in the area 1.
  • the drive control unit 320 sends the content 3 to the disc drive unit 330 in accordance with the read command from the disc 1 received from the back-end control unit 240. Is to be read.
  • the drive control unit 320 When the content 3 is read from the disc 1, the drive control unit 320 outputs the read content 3 to the back end unit 200 via the interface unit 310.
  • FIG. 16 is a diagram illustrating a state of the storage unit 340 and the storage unit 280 when no optical disk is loaded in the drive unit 300.
  • FIG. 17 is a diagram schematically showing a medium from which content is read out during reproduction when no My Disc is loaded.
  • content 1 and content 2 are recorded in area 1 of storage unit 340.
  • the drive unit 300 is not loaded with the disc 1 on which the contents 1 to 3 are recorded.
  • information on titles 1 to 3 is recorded in the title management table in the title management area of the storage unit 280. That is, the back-end unit 200 can recognize the contents 1 to 3 represented by the titles 1 to 3.
  • FIG. 16 as in FIG. 14, details of the title management table are omitted.
  • the content 1 read processing shown in FIG. 17 is the same as the content 1 read processing in the case where the My Disc is loaded, and thus the description thereof is omitted here.
  • the content editing process is a process executed in response to a content editing instruction from the user via the operation input unit.
  • the back-end control unit 240 edits the content selected by the user on the assumption that the back-end control unit 240 has received an instruction to edit the content represented by the selected title. Execute the process.
  • the title displayed on the display device is a title recognized by the back-end unit 200.
  • the title recognized in the back-end unit 200 can be rephrased as the title registered in the title management table recorded in the title management area of the storage unit 280. That is, the title registered in the title management table can be edited regardless of the recording medium.
  • the content editing operation in the recorder apparatus 100 can be broadly divided into an editing process when a my disk is loaded and an editing process when a my disk is not loaded, similarly to the content playback process. Each editing process will be described below.
  • the content editing process is a process of changing at least a part of the data recorded in the My Disc or the storage unit 340. Specifically, the content is deleted from the scene (partial change of the content data). ), Processing including deletion of content and addition of chapter in content. Note that, here, scene erasure in the content will be described as an example, but other processing can be similarly performed.
  • FIG. 18 is a diagram schematically showing a medium on which content is edited when a My Disc is loaded.
  • the disc 300 on which the contents 1 to 3 are recorded is loaded in the drive unit 300, and the contents 1 and 2 are recorded in the area 1 of the storage unit 340.
  • the title management table in the title management area of the storage unit 280 records information on titles 1 to 3, and the back end unit 200 recognizes the contents 1 to 3 represented by the titles 1 to 3. Can do. In FIG. 14, the details of the title management table are omitted.
  • the back end control unit 240 outputs a command to change the data of the content 1 recorded on the disc 1 to the drive unit 300 via the interface unit 290.
  • the drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 1 recorded on the disc 1 is recorded in the area 1.
  • the drive control unit 320 since the content 1 is the content recorded in the area 1, the drive control unit 320 refers to the map table for an instruction to change data in the disc 1 received from the back-end control unit 240. 1 is converted into an instruction to change data. That is, since the drive control unit 320 refers to the map table and converts the address of the disc 1 into the physical address of the area 1, the data of the content 1 recorded in the area 1 is actually changed. It will be.
  • the drive control unit 320 records in the area 1.
  • the data change made for the content 1 is also reflected on the content 1 recorded on the disc 1. Reflecting the change to the content 1 recorded on the disc 1 may be performed at any time until the disc 1 is taken out from the drive unit 300.
  • the back end control unit 240 similarly changes the data of the content 3 recorded in the disc 1. Is output to the drive unit 300 via the interface unit 290.
  • the drive control unit 320 that has received a command from the back-end control unit 240 refers to the map table and determines whether or not the content 3 recorded on the disc 1 is recorded in the area 1. At this time, since the content 3 is content not recorded in the area 1, the drive control unit 320 follows the instruction to change the data of the content 3 recorded on the disc 1 received from the back-end control unit 240. Instructs the disk drive unit 330 to change the data of the content 3.
  • FIGS. 16 and 19A and 19B are diagrams schematically showing a medium on which content is edited when the My Disc is not loaded.
  • FIG. 19 (a) shows the disc 1
  • FIG. 19B shows the reflection of the changed portion on the disc 1 when the disc 1 is loaded.
  • the drive control unit 320 records the change of the content 2 in the disc 1 in the area 1. It is reflected to the content 2 that is present. At this time, the map table recorded in entry 1 is also updated.
  • FIGS. 20 (a) and 20 (b) are diagrams showing the in-memory copy process in the recorder device 100, and FIG. 20 (a) shows the state of the storage unit 340 after the in-memory copy process.
  • FIG. 20B is a diagram showing the state of the title management area in the storage unit 280 after the in-memory copy process.
  • the content in-memory copy process is a process executed in response to a content copy instruction from the user via the operation input unit. For example, when the user selects a title from the titles displayed on the display device and determines in which area the selected title is to be copied, the back-end control unit 240 displays the content represented by the selected title. When an instruction to copy to the area in the selected storage unit 340 is received, the in-memory copy process of the content is executed.
  • the title displayed on the display device is a title recognized by the back-end unit 200.
  • the title recognized in the back-end unit 200 can be rephrased as the title registered in the title management table recorded in the title management area of the storage unit 280.
  • the back-end control unit 240 Upon receiving an instruction from the user to copy the content 2 recorded in the area 1 of the storage unit 340 to the area 2 of the storage unit 340, the back-end control unit 240 is recorded in the area 1 with respect to the drive control unit 320. The content 2 is recorded in the area 2.
  • the drive control unit 320 Upon receiving the instruction from the back-end control unit 240, the drive control unit 320 records the content 2 in the area 2 as shown in FIG. At this time, the drive control unit 320 updates the map table recorded in the entry 2.
  • the recording of the content 2 in the area 2 and the update of the map table associated therewith are the same as the processing described in the recording operation, and thus the description thereof is omitted.
  • the back-end control unit 240 subtracts 1 from the remaining dubbing count of the content 2 in the title management information recorded in the title management area of the disc 1 in the storage unit 280. Further, 1 is added to the remaining dubbing count of the content 2 in the title management information recorded in the title management area of the disc 2 in the storage unit 280. Accordingly, as shown in FIG. 20B, the remaining dubbing count of the content 2 in the title management area of the disc 1 is “8”, and the remaining dubbing count of the content 2 in the title management area of the disc 2 is “1”. It becomes.
  • the synchronization state of the content 2 recorded in the area 2 is information indicating unsynchronization.
  • the drive control unit 320 that has received an instruction to cancel the registration of the disk 1 from the user erases the management information that is recorded in the storage unit 340 and manages the area associated with the disk 1 that is to be deregistered. That is, the media ID information, the media key information, and the map information in the entry are deleted, and the allocation flag is changed to “0” indicating that the allocation is not performed. If data is recorded in the area, the recorded data is also erased. As a result, the entry in the storage unit 340 is in a state where a new My Disk can be registered.
  • the back-end control unit 240 that has received an instruction to cancel the registration of the disc 1 from the user deletes the title management information recorded in the title management area of the disc 1 in the storage unit 280. As a result, the back end unit 200 cannot recognize the title indicating the content recorded on the disc 1.
  • FIGS. 21A to 21C are diagrams showing data management using a file system.
  • FIG. 21A shows an example of a file system recorded in the storage unit 280.
  • FIG. 21B shows a correspondence relationship of the recording state of the disc 1 corresponding to the recording state of the content in the area 1, and
  • FIG. 21C shows a map table for each file.
  • a file system defined by a standard for each type of optical disk is recorded in the optical disk, and each file recorded on the optical disk is associated with the recorded address of each file by the file system. ing.
  • the file system is often recorded at the beginning of the storage area of the optical disc.
  • the back end unit 200 refers to the file system acquired from the optical disc in order to specify the address of the optical disc that is the target of data reading or data writing.
  • the file system is acquired together with the media ID and the like when the optical disc is loaded, and is stored in the volatile memory of the back end unit 200. Further, in order to cope with an unexpected power interruption, the acquired file system is also stored in the storage unit 280 ((a) of FIG. 21).
  • the back-end unit 200 acquires a file system from the optical disk every time an optical disk is loaded, and compares the acquired file system with the file system recorded in its own apparatus to maintain the latest state of the file. I am doing so.
  • the back-end unit 200 compares the file system read from the optical disk registered as My Disk with the file system already recorded in the storage unit 280 (the file system most recently read from the optical disk). As a result, the back-end unit 200 acquires content information recorded on the optical disc and not recorded in the storage unit 340 (for example, the address of the optical disc on which the content is recorded, title information indicating the content, etc.).
  • FIG. 21A only the file system related to the disk 1 is shown, but the file system is recorded in the file system management area of the storage unit 280 by the number of disks registered as my disks. ing.
  • the back end unit 200 is recorded in the storage unit 280 even when the optical disc is not loaded.
  • the file on the virtual disk image can be accessed by referring to the existing file system. That is, even when the My Disk is not loaded, the data can be handled as if the My Disk is loaded.
  • the map information of the storage unit 340 when the address of the storage unit 340 corresponding to the virtual address to be accessed is recorded, the data recorded at the address using the address of the storage unit 340 Can be read out.
  • the back-end control unit 240 can access the content 1 accurately by referring to the arrangement information of the content 1 in the file system recorded in the storage unit 280.
  • the map information recorded in the storage unit 340 is shown as arrangement information for each content in the present embodiment, but more precisely, as shown in FIG. ) Shows the arrangement information for each.
  • the file system recorded in the file system management area is also deleted along with the title management information.
  • FIG. 22 is a diagram schematically showing display of information recorded in the content and title list on the display device 500.
  • the display apparatus 500 displays the title list and the content as shown in FIG.
  • the display screen in the display device 500 is divided into two screens: a content display unit 510 that continues to display content that has been viewed so far, and a title display unit 520 that displays a title list. Will be.
  • the title list display section 520 As shown in FIG. 22, tabs corresponding to registered My Disks are displayed.
  • the title list display unit 520 displays the title list of the My Disc selected by the user. That is, the information of the title management table recorded in the title management area of each My Disc in the storage unit 280 is displayed.
  • FIG. 22 shows a title list when the disc 1 tab is selected. At this time, it is preferable to display information (icon) indicating the selected disk on the display unit 530.
  • information indicating the selected disk
  • the user selects each title displayed on the title list display unit 520, it is preferable to display a thumbnail of the content indicated by the temporarily selected title on the display unit 530.
  • the recorder apparatus 100 can virtually handle a plurality of optical disks, it is possible to record the contents of another program broadcast simultaneously on each of the plurality of optical disks registered as My Disks. It is. For example, even when the reserved recording times of two pieces of reservation information overlap, it is possible to record a specific program on a specific My Disk based on the two pieces of reservation information.
  • the program recording device drives a program based on reserved recording information including recording device designation information for designating one of a plurality of recording media (optical discs) as a recording destination.
  • a program recording apparatus comprising control means (back end control unit) for recording on the apparatus, wherein the recording medium can be loaded in the drive device, and the control means includes the recording medium designation information and the recording medium.
  • a write command including first area designation information for designating a storage area on the recording medium designated by the designation information is input to the drive device together with data representing the program, the drive device includes a storage unit, An interface (interface unit) that acquires a write command together with the data, and the interface When the command and the data are acquired, writing means for writing the data to the storage unit, and second area designation information for designating a storage area on the storage unit in which the data is written by the writing means And recording means for recording in the storage unit in association with the recording medium designation information and the first area designation information.
  • the recorder apparatus 100 includes a storage unit 340 for virtually handling an optical disc in the drive unit 300. Therefore, it is possible to make the drive control unit 320 take most of the processing for virtually handling the optical disc. Therefore, when a system that virtually handles an optical disk is ported to another model, the drive unit 300 can be used without changing the drive unit 300, so that porting is easy.
  • the recorder device 100 sets the size of the content to be recorded for recording to “recording image quality” and “recording time” (recording end time and recording time). And a comparison with the free space of the area 1 to be recorded.
  • the recorder apparatus 100 determines that all of the reserved recording content cannot be recorded in the area 1, the recorder apparatus 100 notifies the user that the content can be recorded only for the time corresponding to the free capacity of the area 1.
  • the recorder device 100 similarly estimates the size of the content to be reserved and recorded based on the “recording image quality” and the content time. Compared with the free space in the area 1 to be recorded.
  • the recorder device 100 determines that all of the content to be recorded for reservation cannot be recorded in the area 1, the recorder device 100 notifies the user that the reserved recording cannot be executed if the disc 1 is removed from the recorder device 100. Even when the disc 1 is taken out from the recorder device 100, if the disc 1 is reloaded into the recorder device 100 by the time when the reserved recording process starts, the reserved recording process is executed for the disc 1.
  • the recorder device 100 determines that it is not possible to record all of the scheduled recording content in the area 1, the scheduled recording content
  • the recording image quality may be set low so that all of the above can be recorded.
  • the recorder device 100 sets the reserved recording content set for the disc 1. It is determined whether or not all of the content can be recorded in the area 1, and when it is determined that the content cannot be recorded, the user is notified that the content can be recorded only for the time corresponding to the free capacity of the area 1, The user may select a recording image quality of a low level or record only the free space in area 1). Alternatively, the recorder device 100 may automatically select one of the countermeasures without causing the user to select one.
  • the recorder device 100 sets the reserved recording content set for the disc 1. It is determined whether or not all of the recording can be recorded in the area 1, and if it is determined that the recording cannot be performed, if the reserved recording is designated as “reserved recording with high importance” by the user, the disc 1 It is good also as a structure which does not let a user take out.
  • Embodiment 2 Next, the recorder apparatus of Embodiment 2 is demonstrated. For convenience of explanation, only differences from the first embodiment will be described below.
  • the area of the storage unit 340 to which the my disk is allocated can be temporarily invalidated.
  • FIG. 23 is a diagram schematically illustrating the storage unit 340 after the invalidation processing of the region 1.
  • Disk 1 is registered as My Disk corresponding to area 1.
  • the entry 1 of the storage unit 340 is provided with an “active flag”, and information indicating that the area 1 is valid (“1” here) is normally recorded in the active flag.
  • the command for writing to the disk 1 or reading the disk 1 from the back-end unit 200 is executed for the area 1. . That is, processing similar to that in the first embodiment is performed on region 1.
  • the recorder device 100 Based on the user's instruction or the like, the recorder device 100 changes the active flag of entry 1 to “0” indicating that area 1 is invalid.
  • the command for writing to the disk 1 or reading the disk 1 from the back-end unit 200 is: Regardless of whether or not the disk 1 is loaded, the process is not executed for the area 1.
  • a command to write to the disk 1 or read from the disk 1 from the back-end unit 200 is executed only on the disk 1. Further, when the disk 1 is not loaded, it is determined that the drive control unit 320 cannot execute an instruction to write to the disk 1 or read from the disk 1 from the back end unit 200, and the drive control unit 320 An error is output to the unit 200.
  • the recorder device 100 can change the active flag of entry 1 to “1” to enable the region 1.
  • the validity / invalidity of the active flag may be switched depending on whether or not the disc 1 is loaded in the recorder device 100. That is, when the disc 1 is loaded in the recorder device 100 and the synchronization process is completed, the drive control unit 320 changes the active flag of the entry 1 to “0” indicating that the area 1 is invalid. When the disc 1 is taken out from the recorder device 100, the drive control unit 320 changes the active flag of the entry 1 to “1” indicating that the area 1 is valid. Even when the area 1 is invalid, each data including the map information of the My Disk management area is continuously updated to the latest state.
  • the user when setting a recording reservation, the user can set up to two recording image quality for one recording reservation. For example, assume that the first recording image quality is set to “SP” with high image quality, and the second recording image quality is set to “LP” with low image quality.
  • This information is recorded in the reservation information management area of the storage unit 280 as reservation information.
  • the disk 1 is the My Disk of the media ID included in the reservation information.
  • the recorder device 100 selects one of the set image quality based on the reservation information, and uses that image quality. Content 1 is recorded in area 1.
  • FIGS. 24A to 24C are diagrams showing the states of the storage unit 340 and the storage unit 280 when the content 1 is recorded
  • FIG. 24A is a diagram illustrating the content in the region 1 of the storage unit 340
  • FIG. 24B is a diagram showing the correspondence relationship of the recording state of the disc 1 corresponding to the recording state
  • FIG. 24B is a diagram showing a map table when the content 1 is recorded
  • FIG. It is a figure which shows the title management table at the time of recording.
  • the content 1 recorded on the disc 1 with high image quality is larger in data size than the content 1 recorded on the region 1 with low image quality. That is, the compression rate of the data representing the content 1 differs between high image quality and low image quality.
  • FIG. 24B shows a map table when the area 1 of the storage unit 340 is in the state shown in FIG.
  • “0x050” is set as the head address in the virtual disk map in the content 1
  • XGB is set as the data size
  • “0x000” is set as the head address in the memory map.
  • WGB is set as the data size.
  • the synchronization flag in the map table becomes “1” indicating that the content is recorded on the My Disc.
  • the image quality synchronization flag in the map table is set to “0”.
  • the “image quality synchronization flag” indicates that the image quality of the same content 1 recorded in the area 1 and the disc 1 is the same.
  • the image quality synchronization flag is set to “0”, otherwise it is set to “1”.
  • the high-quality content 1 on the disc 1 can be changed to the low-quality content 1 in the region 1 based on a user instruction or the like.
  • the recorder device 100 deletes the content 1 of the disc 1 and copies the content 1 of the area 1 to the disc 1.
  • the drive control unit 320 updates the virtual disk map of the map information of entry 1 and sets the image quality synchronization flag to “1”.
  • the back-end control unit 240 changes the image quality of the title management area of the storage unit 280 to “LP” only.
  • the image quality synchronization flag is “0”, if the user selects “SP” recorded on the disc 1 as the image quality to be left on the disc 1, the content 1 in the area 1 is deleted and the image quality of the content 1 is deleted.
  • the synchronization flag is set to “1”. Further, the back-end control unit 240 changes the image quality of the title management area of the storage unit 280 to “SP” only.
  • the image quality synchronization flag of the content 1 is set to “1”.
  • the image quality remaining on the disc is recorded as the “image quality” in the title management area of the storage unit 280, and the image quality synchronization flag is set to “1”.
  • content can be recorded in two types of image quality on one disc including the region 1 which is the virtual disc 1, and the user can finally record the content on the disc 1 in either image quality. Whether to record can be selected after recording. This increases convenience when the user manages the free capacity of the disk 1. In addition, it is possible to simultaneously generate contents having different image quality, that is, different uses. For example, content can be copied to the disc 2 (area 2) by selecting from two types of image quality.
  • Embodiment 4 Next, the recorder apparatus of Embodiment 4 is demonstrated. For convenience of explanation, only differences from the first embodiment will be described below. In the fourth embodiment, provisional registration processing of an optical disc can be performed without an optical disc.
  • the recorder device 100 associates the entry 2 whose allocation flag is “0” with the optical disc that is not loaded in the recorder device 100.
  • the associated optical disk may be an optical disk that has never been loaded in the recorder device 100. Therefore, an identifier (temporary media ID “ ⁇ aa”) indicating that the media ID is undetermined is recorded in entry 2 of the storage unit 340. Then, the allocation flag of entry 2 is set to “1”.
  • the temporary media ID is also used for reservation information recorded in the reservation information management area of the storage unit 280 of the back-end unit 200. As the temporary media ID, an ID that cannot actually exist in the market can be used.
  • FIG. 25 is a diagram schematically showing the storage unit 340 after provisional registration processing of the optical disc.
  • the drive control unit 320 displays the area 2 associated with the unloaded optical disc (My Disc 2). The content 11 is recorded.
  • the recorder device 100 When an optical disc in which no media ID is recorded in any entry, that is, not registered as a My Disc, is loaded in the drive unit 300, the recorder device 100 records the media ID in the entry 2 and stores the optical disc. Register as My Disk “Disk 2”. Further, the temporary media ID recorded in the reservation information management area of the storage unit 280 is also rewritten to the media ID of the optical disc.
  • the recorder device 100 inquires of the user whether or not to register the optical disc as a My Disc, that is, to record the media ID in the entry 2. Also, if another content is already recorded on the optical disc, the free space of the optical disc is small, and it is impossible to copy a part of the content recorded in the area 2 to the optical disc, the My Disc You may not make it register, and you may warn a user that it is impossible to copy all the contents. Alternatively, only when an unused optical disk is loaded in the recorder apparatus 100, it may be registered as a My Disk corresponding to the area 2 whose media ID is undetermined.
  • the recorder device 100 causes the area of the storage unit 340 not yet associated with the optical disc to function as a virtual new disc. be able to.
  • the user can perform various operations such as recording and reproduction as if the disc 2 is loaded in the recorder device 100.
  • the user can load an arbitrary optical disc that is not yet registered as a My Disc in the recorder device 100 at a desired timing, register the optical disc as a My Disc, and copy the content recorded in the storage unit 340 to the optical disc. it can.
  • the area 2 of the storage unit 340 has the same storage capacity as the optical disk, it is possible to record the content of one optical disk in the area 2 without registering the actual optical disk as a My Disk.
  • the user can copy the content recorded in the area 2 to an actual optical disc at a desired timing.
  • the user can edit the content recorded in the area 2 (processing such as lowering the bit rate) and then copy it to the optical disc. This increases the convenience of the user especially when a write-once (non-rewritable) optical disc is used.
  • FIG. 26 is a diagram schematically showing the state of the storage unit 280 of the back end unit after the reservation registration process. As shown in FIG. 26, a process when information “record the same program every week” is added to the reservation information in the storage unit 280 will be described.
  • the reservation information 401 indicates that a predetermined channel at a predetermined time on a predetermined day of the week is recorded every week on the disk 2 having the recording medium ID “bbb”.
  • the reservation information 401 in the storage unit 280 is not discarded, and the media ID of the reservation information 401 is temporary. Rewritten to media ID.
  • the temporary media ID indicates that the media ID is undetermined.
  • the media ID of entry 2 in the storage unit 340 is also rewritten to the same temporary media ID. Also, the synchronized content in area 2 is deleted.
  • the recorder device 100 records the program in the area 2 in accordance with the reservation information 401.
  • the user can load an optical disc having another media ID “ccc” that is not registered in My Disc into the drive unit 300 and newly register the optical disc as “Disc 2”.
  • the program indicated in the reservation information 401 can be continuously reserved for recording.
  • the program recording apparatus includes a drive apparatus, and a control unit that causes the drive apparatus to record a program based on reserved recording information including recording medium designation information that designates one of a plurality of recording media as a recording destination.
  • the recording device can be loaded with the recording medium, and the control means stores the recording medium designation information and a storage area on the recording medium designated by the recording medium designation information.
  • a write command including first area designating information to be specified is input to the drive device together with data representing the program, and the drive device stores the storage unit, and the memory when the write command and the data are input.
  • a recording method includes a drive device having a storage unit, and the drive device can be loaded with a recording medium, and includes recording medium designation information for designating one of the plurality of recording media as a recording destination.
  • the drive device specifies the recording medium designation information for designating one of the plurality of recording media, and the first area designation information for designating the area on the recording medium designated by the recording medium designation information.
  • the recording medium designation information and The information is recorded in the storage unit in association with the first area designation information.
  • the program recording apparatus should write the data recorded in the storage unit into any of the storage areas on the recording medium when the recording medium designated by the recording medium designation information is loaded into the drive device. I have information.
  • the program recording apparatus refers to the information indicating whether the data written in the storage unit should be written in any area of the specified recording medium, thereby specifying the specified recording medium. Can be read as access to the storage unit.
  • the program recording apparatus processes the data as if the designated recording medium is loaded even when the recording medium designated by the recording medium designation information is not loaded. There is an effect that can be. That is, there is an effect that data can be processed as if a plurality of recording media are always loaded.
  • the drive device may further include registration means for registering identification information for identifying the plurality of recording media in the storage unit for each of the plurality of recording media.
  • the program recording apparatus has identification information for identifying a plurality of recording media.
  • the program recording apparatus can manage the data recorded in the storage unit based on the identification information, and can process the data as if a plurality of recording media are always loaded.
  • the drive device stores the storage designated by the second area designation information associated with the recording medium designation information that designates the loaded recording medium.
  • data is recorded in the storage unit when the designated recording medium is not loaded, and the data recorded in the storage unit is recorded on the recording medium when the recording medium is loaded. be able to.
  • a program recording apparatus can process data as if the recording medium is loaded. Also, a program recording apparatus that handles the storage unit as a virtual recording medium can be realized by a storage unit having a storage capacity equal to or less than the storage capacity of the recording medium.
  • the drive device is loaded in a second format different from the first format in which the writing means writes the data in the storage unit when the write command and the data are input. You may further provide the 1st recording medium writing means which writes the said data on a recording medium.
  • the program data can be recorded in the storage unit and the recording medium in two different formats.
  • the user can select which of the program data recorded in the storage unit and the program data recorded in the recording medium is to be recorded on the recording medium. it can.
  • the first format and the second format may be different from each other in the compression rate of the data.
  • the program data can be recorded in the storage unit and the recording medium at different compression rates. That is, the program can be recorded with two different image quality.
  • the drive device has a write invalid mode for temporarily invalidating the writing means for each recording medium designated in the recording medium designation information, and when the write command and the data are input.
  • the second data is written to the loaded recording medium.
  • the recording apparatus further comprises recording medium writing means, and the drive apparatus writes to the recording medium designated by the recording medium designation information included in the write instruction when the write instruction and the data are input to the drive apparatus.
  • the recording means records the recording medium designation information and the first area designation information in the storage unit. It may be.
  • the program recording device writes the data to the recording medium instead of the storage unit when the drive device is operating in the write invalid mode with respect to the recording medium with the drive device, 1 area designation information is recorded in the storage unit.
  • the storage area of the storage unit can be used effectively.
  • the program recording apparatus may be partially realized by a computer.
  • a computer-readable recording medium in which the program is recorded also falls within the scope of the present invention.
  • each block of the recorder device 100 may be configured by hardware logic, or realized by software using a CPU (central processing unit) as follows. May be.
  • the recorder device 100 includes a CPU that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, a RAM (random access memory) that develops the program, the program, and various data
  • a storage device such as a memory for storing the image.
  • An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program of the recorder device 100 which is software that realizes the above-described functions is recorded in a computer-readable manner This can also be achieved by supplying to the recorder device 100 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU (microprocessor unit)).
  • Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, a CD-ROM (compact disk-read-only memory) / MO (magneto-optical) / Disc system including optical disc such as MD (Mini Disc) / DVD (digital versatile disc) / CD-R (CD Recordable), card system such as IC card (including memory card) / optical card, or mask ROM / EPROM ( A semiconductor memory system such as erasable, programmable, read-only memory, EEPROM (electrically erasable, programmable, read-only memory) / flash ROM, or the like can be used.
  • a tape system such as a magnetic tape and a cassette tape
  • a magnetic disk such as a floppy (registered trademark) disk / hard disk
  • the recorder device 100 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network.
  • the communication network is not particularly limited.
  • the Internet an intranet, an extranet, a LAN (local area network), an ISDN (integrated services network, digital network), a VAN (value-added network), and a CATV (community antenna) television communication.
  • a network, a virtual private network, a telephone line network, a mobile communication network, a satellite communication network, etc. can be used.
  • the transmission medium constituting the communication network is not particularly limited.
  • IEEE institute of electrical and electronic engineering
  • USB power line carrier
  • cable TV line cable TV line
  • telephone line ADSL (asynchronous digital subscriber loop) loop Wireless
  • IrDA infrared data association
  • remote control Bluetooth (registered trademark)
  • 802.11 wireless high data rate
  • mobile phone network satellite line, terrestrial digital network, etc.
  • the present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
  • the present invention can be used for a program recording apparatus including a drive unit for a removable recording medium.
  • Disk drive unit 100 recorder device (program recording device) 200 Back-end unit 210 Tuner unit 220 Encoder unit 230 Stream processing unit 240 Back-end control unit (control means) 250 Buffer Unit 260 Decoder Unit 270 Image Processing Unit 280 Storage Unit 290 Interface Unit 300 Drive Unit (Drive Device) 310 interface unit 320 drive control unit (writing means, recording means, synchronization means, recording medium writing means, registration means) 330 Disk drive unit 340 Storage unit

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

La présente invention se rapporte à un dispositif d'enregistrement de programme qui est apte à gérer un disque optique virtuellement comme si une pluralité de disques optiques avait été chargée. Pour atteindre cet objectif, un dispositif d'enregistrement (100) comprend un module de lecture (300) qui comporte un module de stockage (340). Le module de lecture (300) comprend un module de commande de lecture (320). Quand le module d'interface (310) a acquis une commande d'écriture qui contient des informations de désignation de disque et des informations de désignation d'une première zone, et qu'il a également acquis les données devant être écrites, le module de commande de lecture (320) écrit les données dans le module de stockage (340) et il enregistre en outre, dans une table de mappage, des informations de désignation de deuxième zone qui sont associées aux informations de désignation de disque et aux informations de désignation de première zone. Selon l'invention, lesdites informations de désignation de deuxième zone indiquent la zone du module de stockage (340) dans laquelle les données ont été écrites.
PCT/JP2010/002310 2009-03-31 2010-03-30 Dispositif d'enregistrement de programme, procédé de commande d'un appareil d'enregistrement de programme, programme de commande et support d'enregistrement WO2010113480A1 (fr)

Priority Applications (1)

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JP2011507021A JPWO2010113480A1 (ja) 2009-03-31 2010-03-30 番組録画装置、番組録画装置の制御方法、制御プログラム、および記録媒体

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002335485A (ja) * 2001-05-10 2002-11-22 Kenwood Corp 画像記録再生装置
JP2005276389A (ja) * 2004-03-26 2005-10-06 Sharp Corp 情報記録再生方法及び装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070172212A1 (en) * 2003-12-18 2007-07-26 Koji Miyagawa Recording apparatus, integrated circuit for recording apparatus, recording method, computer program, and recording medium which facilitates content recording
JP2006195588A (ja) * 2005-01-11 2006-07-27 Sony Corp ディスク・システム及びディスク管理方法、並びにコンピュータ・プログラム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002335485A (ja) * 2001-05-10 2002-11-22 Kenwood Corp 画像記録再生装置
JP2005276389A (ja) * 2004-03-26 2005-10-06 Sharp Corp 情報記録再生方法及び装置

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