JP2009193633A - Optical disk recording medium and av device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording medium provided with multilayer recording layers and to provide an AV device provided with a driving device performing a read-write process of the optical disk recording medium. <P>SOLUTION: The optical disk recording medium which is provided with the multilayer recording layers for recording information and wherein each recording layer includes each attribute and the AV device provided with a drive performing the read-write process of the optical disk recording medium are provided. Storage is performed by classifying the respective recording layers of the optical disk recording medium into recording layers for AV data and recording layers for data other than the AV data. In the optical disk recording medium, read-only type and rewritable type storage layers are provided, various programs are stored in the read-only type storage layer and the AV data of contents and data formed by the programs stored in the read-only type storage layer are stored in the rewritable type storage layer, as each attribute of each recording layer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an optical disc recording medium, and an AV device that performs writing of information on the optical disc recording medium and reading of information recorded on the optical disc recording medium.

  In recent years, various contents including moving images are recorded on an optical disc recording medium such as a DVD-RW disc which is a large-capacity recording medium, and a recording / reproducing apparatus or the like for reproducing the content recorded on the optical disc recording medium when necessary. AV equipment is in practical use. As this type of AV equipment, for example, a recording / reproducing apparatus that records and reproduces a broadcast program (content) such as a movie broadcast on BS digital broadcast or high-definition broadcast (hereinafter referred to as broadcast program) on an optical disc recording medium. .

  Such a recording / reproducing apparatus generally includes a hard disk drive (hereinafter referred to as an HDD) having a large-capacity storage area in addition to an optical disk drive for performing contents writing and reading (read / write) processing on an optical disk recording medium. I have. The reason why the conventional recording / reproducing apparatus includes the optical disk drive and the HDD is mainly due to the following reason.

(1) For example, when a broadcast program received from a tuner included in a recording / playback apparatus is recorded (recorded) on an optical disk recording medium of an optical disk drive, if the recording storage area is reduced, the magnetic recording medium of the HDD ( This continuation is recorded on a magnetic disk.
(2) When a broadcast program is recorded on the optical disk recording medium of the optical disk drive and a failure occurs in the optical disk drive, the continuation of this broadcast program is recorded on the magnetic disk of the HDD drive.
(3) An HDD drive having a large capacity storage area is used for recording a plurality of types of content. The optical disk drive is used, for example, for dubbing one designated content from the plurality of types of contents stored in the HDD drive onto the optical disk recording medium.

  On the other hand, due to recent technological developments related to optical disc recording media, high-density optical disc recording media capable of storing large amounts of information by providing two or more multilayer recording layers on one side of the optical disc recording media have been put into practical use. It is coming. As this high-density optical disc recording medium, “Blu-ray Disc” and “HD DVD” (High Definition Digital Versatile) are known. If, for example, two recording layers are provided on this high-density optical disk recording medium, the storage capacity becomes 50 GB, so that the high-density optical disk recording medium can be read and written in place of the conventional recording / reproducing apparatus equipped with an HDD drive. A recording / reproducing apparatus having only an optical disk drive has also been proposed. This high-density optical disk recording medium is a recording medium that reads and writes information using blue laser light.

  Since the above-described high-density optical disc recording medium can store a large amount of information, each recording layer can store various information including contents such as a large number of BS digital broadcasts and high-vision broadcasts. However, control for recording AV data (data composed of audio / visual signals) such as contents on this high-density optical disk recording medium and management of information recorded on the high-density optical disk recording medium must be appropriately performed. In addition, a problem occurs in the information read / write processing with respect to the high-density optical disc recording medium, and the configuration of the program processing for performing the read / write processing is complicated. The following patent documents have been proposed as techniques for improving the efficiency of read / write processing of a high-density optical disc recording medium having multiple recording layers.

JP 2007-26617 A

  In the invention described in Patent Document 1, a lead-in area is provided in the inner periphery of an optical disc, and information indicating the format of information to be recorded in a plurality of recording layers is recorded in the lead-in area. In addition, it is described that the format used for each recording layer can be identified based on the information indicating the format stored in the lead-in area when the optical disk is read / written.

  The high-density optical disc recording medium described in Patent Document 1 is an optical disc recording medium having a multi-layered recording layer. An OS for operating an AV device such as a personal computer is used for this recording layer. (Operating System) and recording application programs are not described. In this way, it is possible to read / write AV data related to contents on a high-density optical disc recording medium having multiple recording layers, and an OS and various application programs are stored in advance on the high-density optical disc recording medium. Furthermore, by making it possible to store the data created by these application programs in this high-density optical disc recording medium, it is possible to provide various AV devices that are more highly functional and more convenient for the user. Become.

  Accordingly, an object of the present invention is to provide various programs including application programs in addition to AV data, music data, and the like as information related to content for a high-density optical disc recording medium having multiple recording layers for recording information, and these An object of the present invention is to provide an AV device including an optical disk recording medium that can also store data created by an application program, and a drive that performs read / write processing of the optical disk recording medium.

  The optical disk recording medium of the present invention is characterized by comprising a plurality of recording layers for recording information, and each of the recording layers of the multilayer has an attribute of the recording layer.

  Furthermore, in the optical disk recording medium of the present invention, each of the multilayer recording layers is divided into a recording layer for storing (storing) AV data and a recording layer for storing normal data other than the AV data. It is said.

  Furthermore, in the optical disk recording medium of the present invention, the recording layer for storing the normal data includes a storage area for storing information relating to authentication information.

  Furthermore, the optical disk recording medium of the present invention is characterized in that the attribute of the recording layer is either a read-only type or a rewritable type recording layer.

  Furthermore, the present invention is characterized in that the AV apparatus includes an optical disk drive that performs a read / write process on the optical disk recording medium.

  The above-mentioned optical disc recording medium is a large-capacity storage (about 50 GB in the case of having two recording layers) having a multi-layer recording layer such as a so-called Blu-ray Disc. 2 shows an optical disc recording medium having a region. The above-mentioned AV device refers to a personal computer, a television receiver, an audio device, various game devices, an optical disc recording / reproducing device, and the like equipped with an optical disc drive that performs read / write processing of the optical disc recording medium of the present invention. . In addition, the above-described multilayer indicates that it has two or more storage layers, and further an optical disk recording medium that has at least one read-only recording layer and at least one rewritable storage layer.

  According to the optical disk recording medium of the present invention described in claim 1, since each of the multilayer recording layers for recording information has the attribute of the recording layer, each recording layer is matched with the attribute of the recording layer. Various information can be recorded in For example, various types of programs are stored in a recording layer having a read-only attribute that cannot be overwritten, and AV data, music data, and data created by an application program relating to content are stored in a recording layer having a rewritable type attribute. Etc. can be stored.

  According to the optical disk recording medium of the present invention as set forth in claim 2, by classifying AV data and normal data other than the AV data and storing (recording) them in each recording layer, various AV devices can be used in advance. Using the provided file system, file management processing of AV data and normal data recorded on the optical disk recording medium is facilitated.

  According to the optical disk recording medium of the present invention as set forth in claim 3, the recording layer for storing normal data includes, for example, a storage area for storing authentication information for authenticating an individual who owns the optical disk recording medium. Therefore, it is possible to authenticate whether or not the user who performs the read / write operation on the optical disk recording medium with respect to the AV device is a valid user. Thereby, the security of various information stored in the optical disk recording medium can be ensured.

  According to the optical disk recording medium of the present invention described in claim 4, since the attribute of each recording layer is either a read-only type or a rewritable type, the read-only type attribute that cannot be overwritten is set. In the recording layer, for example, various programs including an OS (Operating System) are stored in advance, and the recording layer having rewritable attributes is created with AV data, music data, and application programs related to various contents. Data and the like can be stored many times.

  According to the AV apparatus of the present invention described in claim 5, since the drive for performing the read / write processing of the optical disk recording medium having the above-described configuration is provided, various types of movable that operate with the optical disk recording medium are provided. It becomes possible to easily provide a new AV device. For example, by storing various programs including an OS in an optical disk recording medium in advance, it is possible to provide a lightweight personal computer that does not require a hard disk device.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 and 2 are diagrams for explaining a configuration example of an optical disc recording medium 1 having a multi-layered storage layer according to the present invention. In the following description, the optical disk recording medium of the present invention will be described by taking an optical disk recording medium having three recording layers as an example.

  As shown in FIGS. 1 and 2, when the optical disk recording medium 1 of the present invention is configured to include three recording layers (storage layers), each storage layer has an attribute of the storage layer. . The attribute of the storage layer indicates the characteristic of the recording layer, whether it is read-only (read-only type) or rewritable (rewritable type). Note that a read-only recording layer can write information only once, and a rewritable recording layer is a recording layer in which information can be written many times. Note that the rewritable recording layer employs a phase change recording method, for example, so that information can be written and erased many times.

  The optical disc recording medium 1 having a plurality of recording layers is provided with at least one read-only recording layer and a rewritable recording layer. More preferably, the optical disc recording medium 1 includes at least three recording layers, and at least two of the recording layers are rewritable recording layers. This is because when at least two rewritable recording layers are provided, the one recording layer can be used as a recording layer dedicated to AV data for recording large-capacity AV data.

  In the example shown in FIG. 2, the first recording layer (L0) has an attribute of the recording layer of “rewritable type”, and the second recording layer (L1) has the same attribute of “rewritable type”. The attribute of the recording layer (L2) of the first layer is “read only type”.

Further, as shown in FIG. 2, the optical disc recording medium 1 stores information to be recorded on the three recording layers L0, L1, and L2 in one of these recording layers according to the attribute of the information. ing. The attribute of this information indicates, for example, an attribute divided (classified) into AV data of content, data other than AV data of this content (hereinafter referred to as normal data), and the like.
In the example shown in FIG. 2, the first recording layer (L0) has the recording layer attribute “rewritable”, and the information attribute to be recorded is AV data in the first recording layer (L0). Is a recording layer for recording AV data related to content. Therefore, the first recording layer (L0) is a recording layer for recording AV data such as recording data such as high-definition broadcasting, other moving image and still image data, music data, and the like.

  The second rewritable recording layer (L1) includes an authentication information recording area for storing authentication information (personal authentication information) for authenticating a user who owns the optical disc recording medium 1, and an optical disc recording. The recording layer includes a management information recording area for storing management information related to various types of information stored in the medium 1 and a recording area for storing the above-described normal data.

  Note that the above-described authentication information indicates a password or the like for authenticating a user who owns the optical disc recording medium 1. The management information includes file information related to various types of information stored in the optical disc recording medium 1, content title name, recording date (for example, recording date), GOP position information, and the like. is there. The normal data refers to the personal authentication information described above and data created by an application program recorded in the third recording layer (L2) described later. The data created by the application program is, for example, a text document created by a word processor program, data related to a drawing created by a drawing creation program, or the like.

  The third recording layer (L2), which is a read-only type, is a recording layer in which various programs (software) are recorded in advance. As this program, for example, as shown in FIG. 2, for example, an OS (P1) serving as basic software for operating a personal computer which is an AV device, a file management program (file system) (P2), A user authentication program (P3) for performing processing for authenticating a user who uses the optical disc recording medium 1, and an optical disc for controlling read / write processing for the optical disc recording medium 1 inserted in the optical disc drive (optical disc drive apparatus) Various application programs (P5) such as a drive control program (P4), the above-described word processing program, drawing creation program, and Web browser are included.

  The file system (P2) is a file of these information when the optical disc drive control program (P4) performs control to read / write various data relating to AV data and normal data to the optical disc recording medium 1 inserted in the optical disc drive. It consists of various file management programs for management. This file system (P2), for example, when processing information such as AV data on the optical disc recording medium 1, performs processing for defining the file format, processing for setting a file name, file recording date It is composed of a program for performing the process of setting. As this file system (P2), a file system employing UDF (Universal Disc Format) can be used.

  When the above-described OS (P1) to various application programs (P5) are stored in advance in the third recording layer (L2) shown in FIG. 2, for example, in the optical disc recording medium 1 according to the present invention described above. The optical disc recording medium 1 can be sold. Then, the user who has purchased the optical disc recording medium 1 performs operations such as read / write of the optical disc recording medium 1 with an optical disc drive according to the present invention or an AV device to be described later. Alternatively, the user can make a presentation on information stored in the second recording layer (L1) of the optical disc recording medium 1 in advance. As the above-described OS (P1), conventionally used Windows (registered trademark) (Microsoft operating system) or the like can be used.

  Next, an optical disk drive that performs read / write processing of the optical disk recording medium 1 according to the present invention and an AV device including the optical disk drive will be described. This AV device is, for example, a personal computer, a television receiver, an audio device, various game devices, an optical disk recording / reproducing device, or the like, and at least various AV data and normal data recording and / or reproducing processing functions. Indicates a device equipped with

Hereinafter, a personal computer will be described as an example of the AV apparatus of the present invention. FIG. 3 is a control block diagram showing the configuration of the personal computer.
A personal computer 2 shown in FIG. 3 mainly includes a personal computer main body (hereinafter referred to as a host CPU system) 3 and an optical disk drive 4. The host CPU system 3 includes a CPU 5, a ROM 6, and a RAM 7, and various interface circuits (hereinafter referred to as I / F circuits) are connected to a BUS (bus) 8 that connects the CPU 5, ROM 6, and RAM 7. . These I / F circuits serve as interfaces for performing data transmission / reception processing with various input / output devices connected to the host CPU system 3 under the control of the CPU 5.

  As these I / F circuits, there are a keyboard I / F 10 that performs a process of capturing an input signal from a keyboard 9 serving as an input device, a mouse I / F 11 that performs a process of capturing a signal from a mouse, and a process of outputting information to a printer. Printer I / F 12 for performing communication, communication I / F 13 for performing communication with the outside such as the Internet, display I / F 15 for displaying various information on a display device 14 such as a liquid crystal, USB memory or USB A USB I / F 16 for transmitting / receiving data to / from an external device having a terminal, a communication I / F 17 for communicating with the optical disc drive 4, and the like are provided.

  The optical disk drive 4 shown in FIG. 3 may be configured so as to be integrated with the casing of the host CPU system 3 that is the main body of the personal computer 2 or connected to the host CPU system 3 via a communication cable.

  The optical disk drive 4 includes a CPU 18, a ROM 19, a RAM 20, a communication I / F 21, an optical pickup control unit 22, a nonvolatile memory 23, and the like, and these members are connected to a bus line 24. The ROM 19 stores in advance a control program for controlling the operation of the optical disc drive 4, for example, as shown in FIG.

In the program for controlling the operation of the optical disc drive 4 shown in FIG. 4, the main control program (P11) is a program for controlling the overall operation of the optical disc drive 4, and the management information processing program (P12) is the optical disc recording medium 1a. This is a program that performs processing for creating a preset storage format for various management information stored in the second storage layer (L1).
The software transmission processing program (P13) is a program for performing a process of reading a program stored in the third storage layer (L2) of the optical disk recording medium 1a and transmitting it to the upper CPU system 3, normal data transmission The program (P14) is a program that reads normal data stored in the second storage layer (L1) of the optical disc 1 and transmits it to the upper CPU system 3.

  Further, the AV data writing program (P15) is a program for performing processing for writing AV data transmitted from the upper CPU system 3 to the first storage layer (L0) of the optical disk recording medium 1a, and a management information temporary storage program (P16). Is a program for performing a process of temporarily storing the management information related to the AV data in the nonvolatile memory 23 when the AV data writing program (P15) is operating. Further, the management information writing program (P17) stores the management information temporarily stored in the nonvolatile memory 23 by the management information temporary storage program (P16) in the second recording layer (L1) of the optical disc recording medium 1a. The AV data transmission program (P18) that performs processing for recording in the management information recording area reads AV data stored in the first storage layer (L0) of the optical disk recording medium 1a and transmits it to the upper CPU system 3. It is a program that performs processing. The normal data write processing program P19 is a program for performing a process of writing normal data transmitted from the host CPU system 3 to the optical disc recording medium 1a.

  As will be described later, the host CPU system 3 transmits a preset control command to the optical disc drive 4 in order to control the operation of the optical disc drive 4. Then, the main control program (P11) of the optical disk drive 4 analyzes the control command transmitted from the host CPU unit 3, and performs the processing corresponding to the analyzed control command such as the above programs (P12) to (P19). Control to activate any program.

  The communication I / F 21 provided in the optical disk drive 4 is an I / F for performing data communication with the communication I / F 17 of the host CPU system 3. The optical pickup control unit 22 controls the drive of the optical pickup unit that controls the movement of the optical pickup unit, the optical pickup unit that performs read / write processing of information by irradiating the optical disk recording medium 1a with laser light. It is comprised from the I / F circuit etc. which do. The nonvolatile memory 23 temporarily stores the management information related to the AV data when the AV data writing program stores the AV data transmitted from the host CPU system 3 in the optical disc recording medium 1a in real time. This is a memory provided for storage. The optical disk recording medium 1a read / written by the optical disk drive 4 is a high-density optical disk recording medium having the configuration shown in FIG.

  In order to operate the personal computer 2 including the upper CPU system 3 and the optical disk drive 4, the ROM 6 of the upper CPU system 3 stores a program for performing the following processing. That is, when the personal computer 2 is turned on (ON) or the reset button is pressed, the ROM 6 stores an IPL (Initial Program loader), which is a loader program that operates first, and this loader program. Includes accessing the optical disc recording medium 1a inserted in the optical disc drive 4 and storing the OS (P1), file system (P2), user stored in the third recording layer (L2) of the optical disc recording medium 1a. Data transfer instruction regarding the authentication program (P3) and the optical disc drive control program (P4), a program for loading (storing) these transferred programs into a predetermined storage area of the RAM 7, and an OS among the programs loaded into the RAM 7 Stores the program that performs the process of starting (P1) Keep it.

  If a program related to IPL having the above-described functions is stored in the ROM 6, when the optical disk recording medium 1a is inserted into the optical disk drive 4 and the personal computer 2 is turned on, the OS stored in the optical disk recording medium 1a is stored. (P1) is read into the RAM 7, and the OS (P1) for starting up the personal computer 2 can be started up. As a result, the file system (P2) can also be started based on the control of the OS (P1), so that various kinds of information stored in advance in the third recording layer of the optical disc recording medium 1a, as in the conventional personal computer. The data (normal data) created by the application program can be stored in the second recording layer (L1) of the optical disc recording medium 1a.

  When operating the personal computer 2 which is an AV device using the optical disc recording medium 1a described above, the optical disc recording medium 1a is a portable recording medium, and the optical disc recording medium 1a has an OS (P1). Since various application programs and data created by the user by operating this application program are stored, it is important to authenticate whether or not the user who uses the optical disc recording medium 1a is a valid user. . As a means for ensuring the security of information by performing this authentication process, for example, a user authentication program (P3) for performing a process of authenticating a user when the optical disk recording medium 1a is inserted into the optical disk drive 4 and the personal computer 2 is activated. Is activated.

For example, the following means (1) and (2) can be adopted for the process of authenticating the user who uses the optical disk recording medium 1a.
(1) When the user purchases the optical disc recording medium 1a, an operation for storing the user's authentication information in the second recording layer (L1) of the purchased optical disc recording medium 1a is performed. In this operation, for example, the purchased optical disk recording medium 1a is inserted into the optical disk drive 4 and the personal computer 2 is started up. Subsequently, the user authentication information (in an interactive manner with the display device 14 is controlled according to the control of the user authentication program (P3)). The user's authentication information is recorded in the authentication information recording area of the second recording layer (L1) of the optical disc recording medium 1a.

  (2) When the user inserts the optical disk recording medium 1a into the optical disk drive 4 and performs read / write processing on the optical disk recording medium 1a, user authentication processing is performed by the user authentication program (P3). In this authentication process, a screen for inputting authentication information for authenticating the user, such as a password, is displayed on the display device 14. Then, according to the control of the user authentication program (P3), the password entered by the user from the keyboard 10 is previously recorded in the authentication information recording area of the second recording layer (L1) of the optical disc recording medium 1a. A process for determining whether or not they match is performed.

  Next, another embodiment of the AV device of the present invention will be described with reference to FIG. The AV device shown in FIG. 5 records the received broadcast program on the optical disc recording medium 1a on the personal computer 2 which is the first embodiment of the AV device shown in FIG. It is composed of a personal computer having a function and a function for recording and playing back content such as a TV program such as an AV device to which AV data related to a broadcast program recorded on the optical disk recording medium 1a is played back and viewed. A recording / reproducing apparatus (hereinafter referred to as a recording / reproducing apparatus) 200 is shown.

  The basic configuration of the recording / reproducing apparatus 200 shown in FIG. 5 is the same as that of the personal computer 2 shown in FIG. 3, and includes a host CPU system 3a and an optical disc drive 4a. The hardware configuration of the host CPU system 3a is different from that of the host CPU system 3 shown in FIG. 3 in that it is connected to the tuner 210 and the BUS 8 in order to have the recording and playback functions for the contents such as the TV program described above. The content reception processing unit 220, the image storage memory 26, the optical disk I / F 24, and the content reproduction processing unit 25 are provided. The hardware configuration of the optical disc drive 4a can be the same as the configuration of the optical disc drive 4 shown in FIG.

  Although not shown in FIG. 5, a remote control input / output circuit may be connected to the BUS 8 of the host CPU system 3a so that operations such as recording reservation of a broadcast program can be performed by a user's remote control operation. When this recording reservation function is provided, a timer for counting the current time is connected to the BUS 8, and program processing is performed to determine whether the current time has reached the start time of the broadcast program reserved for recording. To monitor the time of this timer.

  The tuner 210 shown in FIG. 5 has a function of receiving a broadcast signal of a broadcast program selected by the tuner 210 based on the control of the CPU 5. The broadcast signal selected by the tuner 210 is sent to the content reception processing unit 220, where the broadcast signal is demodulated, and the AV data (AV signal) and additional information (management information) such as program information are separated. Extraction processing is performed. The image storage memory 26 is used as a memory for temporarily storing AV data separated by the content reception processing unit 220. The optical disk I / F 24 includes a circuit for compressing the AV data stored in the image storage memory 26 into the MPEG2 format, and a circuit for decoding the AV data compressed in the MPEG2 format into the original AV data. I have. In addition, the content reproduction processing unit 25 includes an I / F circuit for reproducing and displaying the AV data subjected to the decryption process on the display device 14.

  Next, the configuration of a program for controlling the operation of the recording / reproducing apparatus 200 will be described with reference to FIG. As described above, this control program is stored in the third recording layer (L2) of the optical disk recording medium 1a and in a read-only recording layer for storing the program in advance.

  As shown in FIG. 6, the program for controlling the operation of the recording / reproducing apparatus 200 includes, for example, the OS (P1) to various application programs (P5), which are programs shown in FIG. 2, and a remote control signal analysis program. (P6), a recording reservation program (P7), a recording program (P8), a content reproduction program (P9), and the like. Note that the OS (P1) shown in FIG. 6 is not necessarily an OS for a personal computer, and may be a dedicated OS developed for the recording / reproducing apparatus 200.

  The remote control signal analysis program (P6) shown in FIG. 6 analyzes and analyzes the operation signal when the operation signal from the remote control operated by the user is input to the host CPU system 3a via the remote control input / output circuit. This is a program for transferring the control to a program that executes processing corresponding to the processed signal. The remote control operation signal relates to “recording reservation”, “recording start”, “recording stop”, “playback start”,... Signal.

  The recording reservation program (P7) supports a reservation operation in an interactive manner with the display device 14 when the user makes a reservation for recording a broadcast program by operating the remote controller, and the recording reservation data set in the RAM 7 is recorded. It is a program that performs processing to be stored in the reservation table. The data reserved for recording includes, for example, a channel of a broadcast program reserved for recording, a program title name, a recording start time, and the like. Further, the recording reservation operation by the recording reservation program (P7) is performed by using SI (Service Information; program arrangement information) included in a broadcast signal received by the tuner 210 at a predetermined time interval. A program list may be displayed at 14 and a user may be selected from the program list in an interactive manner.

  As described above, the recording program (P8) is used to record the AV data of the broadcast program received by the tuner 210 based on the recording reservation data recorded by the user and stored in the RAM 7 as described above, or based on the user's remote control operation. This is a program for instructing the drive 4a to record. Note that the AV data of this broadcast program is stored in the rewritable storage layer of the optical disc recording medium 1a as described above and in the first recording layer (L0) for storing AV data.

  Further, the content reproduction program (P9) instructs the AV data recorded in the first storage layer (L0) of the optical disk recording medium 1a inserted in the optical disk drive 4a to read from the optical disk drive 4a. This is a program for performing control for reproducing and displaying the transmitted AV data on the display device.

  In the recording / reproducing apparatus 200, the method of operating the remote control signal analysis program (P6) to the content reproduction program (P9) recorded in the third recording layer of the optical disc recording medium 1a is the following method (1 ) Or (2) can be employed.

(Method 1)
As described above, since the ROM 6 of the host CPU system 3a stores an IPL (Initial Program loader), when the optical disk recording medium 1a is inserted into the optical disk drive 4a and the recording / reproducing apparatus 200 is turned on, the optical disk recording is performed. The OS (P1) stored in the third recording layer (L2) of the medium 1a is read into the RAM 7, and the OS (P1) for starting up the recording / reproducing apparatus 200 can be started up. At this time, the IPL further reads (loads) the file system (P2) to the content reproduction program (P9) stored in the third storage layer (L2) of the optical disc recording medium 1a into the RAM 7. To. When an interrupt signal based on the user's remote control operation is input to the host CPU system 3a, the remote control signal analysis program (P6) is activated. Thus, the remote control signal analysis program (P6) controls to execute a program that performs processing corresponding to the interrupt signal based on the user's remote control operation.

(Method 2)
In the above (Method 1), every time the optical disc recording medium 1a is inserted into the optical disc drive 4a, the OS (P1) to the content reproduction processing program (P9) shown in FIG. Some waiting time is required. In order to eliminate the waiting time associated with each reading process, in addition to the RAM 7, the host CPU system 3a is provided with a non-volatile memory such as a flash memory that can be accessed at high speed as a storage means. Only in the first time when the optical disk recording medium 1a is inserted into the optical disk drive 4a, the OS (P1) to the content reproduction processing program (P9) recorded in the third storage layer (L2) of the optical disk recording medium 1a by IPL. ) Is also loaded into this non-volatile memory. When these programs are loaded into the nonvolatile memory, for example, “1” is stored in the loaded flag set in the RAM 7 or the nonvolatile memory. Thus, in the second and subsequent times when the optical disk recording medium 1a is inserted into the optical disk drive 4a, the IPL determines the stored contents of this loaded flag and stores “1” in the optical disk recording medium 1a. The processing of loading the OS (P1) to the content reproduction processing program (P9) that has been executed into the RAM 7 becomes unnecessary. Next time, when the optical disk recording medium 1a is inserted into the optical disk drive 4a, the IPL controls to read the OS (P1) stored in the nonvolatile memory into the RAM 7 and activate it.

Next, a control processing procedure executed by the recording / reproducing apparatus 200 when a broadcast program received by the tuner 210 of the recording / reproducing apparatus 200 is recorded on the optical disc recording medium 1a of the optical disc drive 4 by a user's remote control operation will be described. .
First, the flow of control when the recording / reproducing apparatus 200 is started up when the optical disk recording medium 1a is inserted into the optical disk drive 4 and the power of the recording / reproducing apparatus 200 is turned on will be described in the order of steps shown in FIG.

(Step S1)
When the power of the recording / reproducing apparatus 200 is turned on or the reset button is pressed, the interrupt signal is input to the recording / reproducing apparatus 200 and an IPL (Initial Program loader) stored in the ROM 6 is activated.

(Step S2)
When the IPL is activated, the IPL accesses the optical disc drive 4a as described above, and the OS (P1), the file system (P2), the user stored in the third recording layer (L2) of the optical disc recording medium 1a. An authentication program P3, an optical disc drive control program P4, a remote control signal analysis program P6, a recording reservation program P7, a recording program P8, a content reproduction program P9, and the second recording layer (L1) of the optical disc recording medium 1a are stored. A process of loading user authentication information into the RAM 7 is performed.

(Step S3)
Subsequently, the IPL activates a user authentication program P3 loaded in the RAM 7 and executes an authentication process for a user who uses the optical disk recording medium 1a.

(Step S4)
As described above, the user authentication program P3 displays a screen for inputting user authentication information on the display device 14, and performs processing for acquiring the authentication information input from the keyboard 9 by the user.

(Step S5)
Processing is performed to determine whether the authentication information input by the user in step S4 matches the authentication information loaded in step S2. As a result of this determination processing, if both pieces of authentication information match, the process proceeds to step S6. On the other hand, if the authentication information does not match, an error display or the like is performed and the processing when the recording / reproducing apparatus 200 is turned on is terminated.

(Step S6)
Since it is determined that a legitimate user is operating the optical disc recording medium 1a, the user authentication program P3 performs a process of starting the OS (P1) loaded in the RAM 7. When the OS (P1) is activated, the recording / reproducing apparatus 200 is set to an operable state.

  Subsequently, when a broadcast program such as BS digital broadcast is received by the tuner 210 by a user's remote control operation, and the received content is recorded on the optical disc recording medium 1a of the optical disc drive 4a, the recording / playback apparatus 200 performs the recording. The control procedure will be described. FIG. 8 is a flowchart showing a control procedure when a broadcast program received by the tuner 210 of the recording / reproducing apparatus 200 is recorded on the optical disc recording medium 1a. Hereinafter, the steps will be described in the order shown in FIG.

  When recording a broadcast program, the user makes a reservation for recording a broadcast program to be recorded by operating a remote controller in advance. Accordingly, the recording reservation program P7 performs processing for storing the recording reservation data in the RAM 7. Also, without making a recording reservation, the user can immediately record a broadcast program currently being broadcast by operating the remote controller. In the following description, a case where a broadcast program reserved for recording is recorded on the optical disc recording medium 1a will be described as an example.

(Step S11)
The recording program P8 stored in the RAM 7 of the host CPU system 3a performs processing for checking whether or not recording reservation data is stored in the RAM 7 at predetermined time intervals. When the recording reservation data is stored, the current time of the timer is referred to determine whether the current time has reached the broadcast start date / time / minute of the program reserved for recording. Process. If it is determined that the current time has reached the recording start time as a result of this determination processing, the process proceeds to the next step S12.

(Step S12)
Since it is determined that the current time has reached the recording start time, the recording program P8 controls the tuner 210 so that the broadcast program of the channel reserved for recording can be received and the control for starting the optical disc drive 4a. A command (startup command) is transmitted to the optical disc drive 4a. When the main control program P11 stored in the ROM 19 of the optical disk drive 4a receives this activation command from the upper CPU system 3a, it determines whether or not the optical disk drive 4a is ready for recording, and the determination result is sent to the upper CPU. Reply to the system 3a.
Then, when the recording program P8 of the host CPU system 3a receives a control command indicating that “recording is possible” from the optical disk drive 4a, the process proceeds to step S13. When the control program indicating that the recording program P8 of the host CPU system 3a is not ready for recording is received, an error lamp (for example, LED) is turned on.

(Step S13)
The recording program P8 reads the time of the timer and determines whether or not the current time has reached the broadcast end time of the broadcast program reserved for recording. As a result of the determination process, if the broadcast end time has not been reached, the process proceeds to the next step S14, and if the broadcast end time has been reached, the process proceeds to step S18.

(Step S14)
The recording program P8 executes control for performing reception processing and recording processing of a program (content) reserved for recording. As this reception process, for example, the following processes (1) and (2) are performed.

  (1) The broadcast signal received by the tuner 210 is decrypted by the content reception processing unit 220 and separated into information related to AV data and management information such as program information. The AV data separated from the broadcast signal is sequentially stored in the video storage memory 23 sequentially.

  (2) On the other hand, the separated management information is stored in the RAM 7. As the management information added to the broadcast signal of the broadcast program to be recorded, the above-described SI (program arrangement information) is transmitted in the broadcast signal at a predetermined time interval. Thus, when the recording program P8 receives the broadcast signal reserved for recording, the SI information can be extracted in a short time, and the title name of the program to be recorded, etc. can be stored in the RAM 7. In addition to the title name of this program, the recording program P8 includes the recording date, the file name set in the AV data of the broadcast program to be recorded on the optical disc recording medium 1a, and the broadcast program to be recorded. The file name set for the management information is also stored in the RAM 7. Note that the file name can be set automatically by, for example, the recording program P8 operating the file system (P2) and, for example, the file name including the year, month, day and time of the current day. This program (management) information is information recorded as management information in the management information storage area of AV data set in the second recording layer (L1) of the optical disc recording medium 1a.

(Step S15)
It is determined whether or not the storage content of the management information transmission completion flag set in advance in the RAM 7 is “0”, for example. As a result of the determination, if “0” is stored, the process proceeds to the next step S16, and if “1” is stored, the process proceeds to step S17. The management information transmitted flag is information stored in the RAM 7 in the process of step S14, and is information indicating whether the management information including the program information has been transmitted to the optical disc drive 4a. is there. For example, “0” is stored in the management information transmission flag when the management information has not been transmitted, and “1” is stored when the management information has been transmitted. In step S15, the reason for determining the stored contents of the management information transmission flag as described above is that the program information may be transmitted once to the optical disc drive 4a.

(Step S16)
The recording program P8 transmits a control command indicating that the management information is transmitted to the optical disk drive 4a, and then performs a process of transmitting the management information stored in the RAM 7 to the optical disk drive 4a by the process of step S14. When this transmission process is completed, “1” is stored in the management information transmission completion flag.

  When the main control program P11 of the optical disc drive 4a receives the management information described above from the host CPU system 3a, the main control program P11 operates the management information temporary storage program P16 to store the received management information in the nonvolatile memory 23.

(Step S17)
The recording program P8 transmits a control command indicating transmission of AV data to the optical disc drive 4a. When the recording program P8 receives the control command response command, the AV data temporarily stored in the image storage memory 26 is sequentially extracted in a first-in first-out manner, and transmitted to the optical disc drive 4a via the optical disc I / F unit 24. Process. In this processing, the optical disk I / F unit 24 also performs data compression processing of the AV data by MPEG2. When a predetermined amount of AV data temporarily stored in the image storage memory 26 is transmitted to the optical disc drive 4a, the process returns to step S13. In this way, the recording program P8 repeats the processes of steps S13 to S17, thereby performing the process of sequentially transmitting the AV data of the broadcast program received by the tuner 210 to the optical disc drive 4a in real time.

  On the other hand, when the main control program P11 of the optical disc drive 4a receives AV data from the upper CPU system 3a based on the above step S17, the AV data write program P15 is activated and the received AV data is stored in the optical disc recording medium 1a. A recording (writing) process is performed on the recording layer (L0) of the first layer. When performing this process, the AV data writing program P15 is the first recording layer (L0) of the optical disc recording medium 1a that stores AV data with reference to the management information stored in the nonvolatile memory 23. Then, the head track number of the file name for storing the received AV data is determined, and the process of sequentially writing the AV data received sequentially from this track number is executed. In this way, the AV data writing program P15 records the received AV data on the first recording layer (L0) of the optical disc recording medium 1a in real time while receiving the AV data transmitted from the host CPU system 3a. Perform the process.

As described above, the host CPU system 3a performs a process of sequentially compressing AV data included in the received content and transmitting it to the optical disc drive 4a while receiving a broadcast program (content) such as a digital broadcast. The optical disc drive 4a can perform processing for recording the received AV data on the optical disc recording medium 1a in real time.
At this time, the optical disc drive 4a needs a little seek time when processing the received AV data stream having a predetermined data length on the optical disc recording medium 1a. Information regarding the GOP in which data is recorded on the optical disk recording medium 1a is sequentially stored in the nonvolatile memory 23 by the management information temporary storage program P16.

(Step S18)
Since it is determined in step S13 that the recorded broadcast program has ended, the management information stored in the nonvolatile memory 23 by the optical disk drive 4a is stored in the second recording layer (L1) of the optical disk recording medium 1a. A control command (recording end command) for performing processing to be stored in the set management information storage area is transmitted to the optical disc drive 4a. When the process of step S18 ends, the process of the recording program P8 ends.

  When the optical disc drive 4a receives the control command to end recording from the host CPU system 3a in step S18, the management information stored in the nonvolatile memory 23 is used as the management information for the second recording layer (L1) of the optical disc recording medium 1a. Processing to be stored in the storage area is performed. In this process, the management information processing program P12, for example, from the management information stored in the nonvolatile memory 23, for example, the title name of this broadcast program associated with the file name set in the recorded AV data, the recording date, Processing for creating management information relating to the AV data is performed by selecting information relating to the first storage area recorded on the optical disc recording medium 1a. Subsequently, the management information writing program P17 performs a process of storing the management information regarding the AV data in the management information storage area of the second recording layer (L1) of the optical disc recording medium 1a.

  As described above, the AV device according to the present invention performs processing for recording the AV data transmitted from the host CPU system 3a on the optical disc recording medium 1a by real-time processing, and the management information related to this AV data is temporarily stored in the optical disc. It memorize | stores in the non-volatile memory 23 of the drive 4a. When the recording process of the AV data on the optical disk recording medium 1a is completed, the management information stored in the nonvolatile memory 23 is recorded on the optical disk recording medium 1a. The optical disk recording medium has poor seek characteristics. However, by performing the above-described processing, the AV data and management information related to the AV data can be reliably recorded on the optical disk recording medium 1a.

  Even if the current time does not reach the end time of recording, when a recording end operation signal is input from the remote control, the recording program P8 of the host CPU system 3a causes the recording forcible end control command (SYNC command). Is transmitted to the optical disc drive 4a. When the main control program P11 of the optical disk drive 4a receives this forced recording termination, the management information stored in the nonvolatile memory 23 is set in the second recording layer (L1) of the optical disk recording medium 1a. A process of writing to the information storage area is performed.

  The main control program P11 of the optical disc drive 4a analyzes the control command when an AV data write control command or normal data write control command is transmitted from the host system 3a, and analyzes the optical command recording medium. Processing for determining and determining which recording layer of 1a is to be recorded is performed. In order to perform this processing, for example, the optical disc drive control program (P4) of the host system 3a includes the information related to the recording layer of the optical disc recording medium 1a in the control command and transmits it to the optical disc drive 4a.

  As for the AV apparatus according to the present invention described above, an optical disk drive is connected to the host CPU system of the AV apparatus, and a program including an OS stored in advance on the optical disk recording medium 1a is read and operated by the optical disk drive. A computer and a content recording / reproducing apparatus have been described as examples. Furthermore, the AV apparatus according to the present invention includes a drive for the optical disc recording medium 1a, can receive digital television broadcasts, and has a function of recording and reproducing the received television broadcasts, or this television receiver. It is also possible to put it into practical use as an AV device having a personal computer function.

It is a figure for demonstrating the structural example of the recording layer about the optical disk recording medium which concerns on this invention. FIG. 2 is a diagram for explaining an example of an attribute of the recording layer and an example of a program stored in advance for each recording layer constituting the optical disc recording medium shown in FIG. 1. 1 is a diagram for explaining the configuration of an embodiment of an AV apparatus including an optical disk drive that performs read / write of an optical disk recording medium according to the present invention. FIG. It is a figure for demonstrating the structural example about the control program with which the optical disk drive shown in FIG. 3 is provided. It is a figure for demonstrating the structure of other embodiment about AV apparatus provided with the optical disk drive which reads / writes the optical disk recording medium based on this invention. FIG. 6 is a diagram for explaining an example of an attribute of a recording layer and an example of a program stored in advance for an optical disc recording medium to be read / written by an optical disc drive provided in the AV apparatus shown in FIG. FIG. 6 is a flowchart for explaining an example of a procedure of activation processing when the AV device shown in FIG. 5 is activated. FIG. FIG. 6 is a flowchart for explaining a control procedure executed by a control program included in the AV device when the AV device shown in FIG. 5 performs processing for recording information related to the content on the optical disk recording medium of the optical disk drive.

Explanation of symbols

1, 1a: Optical disk recording medium 2: AV equipment (personal computer)
3, 3a: host CPU system 4, 4a: optical disk drive 5; CPU
6: ROM
7: RAM
18: CPU
19: ROM
20: RAM
21: Communication I / F
22: Optical pickup control unit 23: Non-volatile memory 200: Recording / reproducing apparatus 210: Tuner 220: Content reception processing unit P1: OS
P2: File system P3: User authentication program P4: Optical disc drive control program P5: Application program P6: Remote control signal analysis program P7: Recording reservation program P8: Recording program P9: Content playback program P11: Main control program P12: Management information processing program P13: Software transmission program P14: Normal data transmission program P15: AV data writing program P16: Management information temporary storage program P17: Management information writing program P18: AV data transmission program P19: Normal data writing

Claims (5)

  An optical disc recording medium comprising a plurality of recording layers for recording information, wherein each of the recording layers of the multilayer has a recording layer attribute.   2. The optical disc recording medium according to claim 1, wherein each of the recording layers of the multilayer is divided into a recording layer for storing AV data and a recording layer for storing normal data other than the AV data.   3. The optical disk recording medium according to claim 2, wherein the recording layer for storing the normal data includes a storage area for storing information relating to authentication information.   2. The optical disk recording medium according to claim 1, wherein the attribute of the recording layer is a read-only type or a rewritable type recording layer. 5. An AV apparatus comprising an optical disk drive that performs a read / write process on an optical disk recording medium according to claim 1.

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