JP2006228333A - Information processor, information processing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize recording or reproduction to e. g. a new kind of recording medium in a short period. <P>SOLUTION: A disk camcorder 1 stores firmware for carrying out recording or reproduction to a disk. The disk camcorder 1 photographs a two-dimensional code 2A concerning recording or reproduction of the disk attached to the case 2, and obtains information of a parameter. The disk camcorder 1 stores the information of the parameter. The disk camcorder 1 reads the information of the parameter corresponding to a disk of an object to be recorded or an object to be reproduced in the stored information of the parameter, and executes the firmware based on the information of the parameter to carry out recording or reproduction to the disk. This invention can be applied to a video camera for carrying out recording or reproduction to the disk. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information processing device, an information processing method, and a program, and an information processing device, an information processing method, and an information processing method that enable recording or reproduction on, for example, a new type of recording medium in a short time. Regarding the program.

  In recent years, CD-R (Compact Disc Recordable), CD-RW (Compact Disc ReWritable), MO (Magneto-Optical disk), MD (Mini-Disc), and DVD-R (Digital) have been manufactured and manufactured at low cost. 2. Description of the Related Art Disk devices that perform recording or reproduction on a disk such as Versatile Disk Recordable (DVD) and DVD-RW (Digital Versatile Disk ReWritable) are rapidly spreading.

  For example, since these discs are excellent in durability and portability, mobile devices such as personal computers, VTRs (Video Tape Recorders), digital still cameras, and camcorders using these discs as external recording media have become widespread. ing.

  In order to provide a stable supply of discs, discs can be recorded or played back on discs manufactured and sold by disc vendors (manufacturers and distributors), especially new discs manufactured and sold after the disc unit is released. It is an important task. In addition, it is an important issue to enable recording or reproduction on a disk whose physical characteristics change for each production lot in order to enhance the function of the disk (for example, improvement in high speed and durability).

  In view of this, there is a disk device that enables recording or reproduction on a new disk by updating firmware in which write strategy data optimal for the new disk is stored (see, for example, Patent Document 1). The write strategy is to specify the optimum value of the laser output when the time axis and intensity direction are partially changed according to the EFM (Eight to Fourteen Modulation) pulse length. The parameter group to be determined.

  Further, there is a peripheral device of a computer that does not require a host computer, connects itself to a communication line such as a telephone line, and updates the firmware via the communication line (see Patent Document 2).

  Furthermore, when an electronic camera (see Patent Document 3) for updating a firmware by reading a two-dimensional code encoded in a format in which the firmware is optically readable, or a disk for firmware update is inserted into the disk There is an optical disk device that updates firmware based on recorded data (see Patent Document 4).

  However, when the firmware is updated, even if the update work by the user is facilitated, the update requires a long time. In addition, when firmware is updated, firmware data may be lost if an error occurs during the update.

Therefore, Patent Document 1 discloses that a new disk can be created from a host computer that manages write strategy data via an interface such as ATAPI (AT Attachment Packet Interface), SCSI (Small Computer System Interface), or USB (Universal Serial Bus). There is described an optical disc apparatus that receives write strategy data and enables recording or reproduction with respect to a new disc using the write strategy data.
JP 2004-192707 A JP 11-272634 A Japanese Patent Laid-Open No. 2004-171461 Japanese Patent Laid-Open No. 2004-127386

  However, in the optical disk apparatus that enables recording or reproduction to a new disk using the write strategy data described in Patent Document 1, the host computer manages the write strategy data of the disk. When recording or reproduction is performed on the disk, it is necessary to always receive write strategy data from the host computer, and much time is required until recording or reproduction is performed on the disk.

  Also, the user needs to set up a host computer, which is troublesome. Also, setup time is required. Furthermore, the manufacturer of the optical disk apparatus needs to verify the connection environment accompanying the data transfer of the write strategy from the host computer.

  The present invention has been made in view of such circumstances, and makes it possible to record or reproduce a new type of recording medium in a short time, for example.

  An information processing apparatus according to the present invention includes a program storage unit that stores a recording / playback program for recording or playback on a recording medium, an acquisition unit that acquires parameter information, and parameter information acquired by the acquisition unit. Out of the parameter information stored in the storage control unit and the parameter storage unit stored in the storage unit, the parameter information corresponding to the recording medium to be recorded or reproduced is read out and recorded based on the parameter information. Recording / reproducing means for performing recording or reproduction on a recording medium by executing a reproduction program is provided.

  This parameter information can be added to the label surface, package, or case of the recording medium.

  The information processing method of the present invention includes an acquisition step of acquiring parameter information, a storage control step of storing parameter information acquired by the processing of the acquisition step in the parameter storage unit, and a parameter stored in the parameter storage unit Recording / reproducing step of recording or reproducing the recording medium by reading out the parameter information corresponding to the recording medium to be recorded or the reproducing target and executing the recording / reproducing program based on the parameter information It is characterized by including.

  The program of the present invention includes an acquisition step for acquiring parameter information, a storage control step for storing parameter information acquired by the processing of the acquisition step in the parameter storage unit, and parameter information stored in the parameter storage unit A recording / reproducing step of recording or reproducing the recording medium by reading parameter information corresponding to the recording medium to be recorded or reproducing and executing a recording / reproducing program based on the parameter information. It is characterized by including.

  In the present invention, parameter information relating to own recording or reproduction is acquired, the parameter information is stored in the parameter storage means, and the parameter to be recorded or reproduced is stored among the parameter information stored in the parameter storage means. The parameter information corresponding to the target recording medium is read, and the recording / reproducing program is executed based on the parameter information, thereby recording or reproducing the recording medium.

  According to the present invention, it is possible to record or reproduce a new type of recording medium in a short time, for example.

  Embodiments of the present invention will be described below. Correspondences between constituent elements described in the claims and specific examples in the embodiments of the present invention are exemplified as follows. This description is to confirm that specific examples supporting the invention described in the claims are described in the embodiments of the invention. Therefore, even if there are specific examples that are described in the embodiment of the invention but are not described here as corresponding to the configuration requirements, the specific examples are not included in the configuration. It does not mean that it does not correspond to a requirement. On the contrary, even if a specific example is described here as corresponding to a configuration requirement, this means that the specific example does not correspond to a configuration requirement other than the configuration requirement. not.

  Further, this description does not mean that all the inventions corresponding to the specific examples described in the embodiments of the invention are described in the claims. In other words, this description is an invention corresponding to the specific example described in the embodiment of the invention, and the existence of an invention not described in the claims of this application, that is, in the future, a divisional application will be made. Nor does it deny the existence of an invention added by amendment.

An information processing apparatus according to claim 1 is provided.
In an information processing apparatus (for example, the disc camcorder 1 in FIG. 1) that performs recording or reproduction with respect to a recording medium (for example, the disc 27 in FIG. 3) to which parameter information relating to its own recording or reproduction is added
Program storage means (for example, firmware area 71 of the drive memory 47 in FIG. 5) for storing a recording / reproducing program (for example, firmware) for recording or reproducing with respect to the recording medium;
Acquisition means for acquiring the parameter information (for example, the camera 16 in FIG. 3);
The storage control means (for example, step S23 in FIG. 8 is executed in FIG. 4) for storing the parameter information acquired by the acquisition means in the parameter storage means (for example, the parameter information management area 72 of the drive memory 47 in FIG. 5). Microcomputer 46),
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, And recording / reproducing means for recording or reproducing the recording medium (for example, the microcomputer 46 in FIG. 4 that executes step S43 in FIG. 12, and the reproduction processing unit 44 or the recording processing unit 53 in FIG. 4). To do.

The information processing apparatus according to claim 2
The parameter information is added to a label surface, a package, or a case (for example, case 2 in FIG. 1) of the recording medium.

An information processing apparatus according to claim 3 is provided.
Program storage means (for example, firmware) for storing a recording / reproduction program (for example, firmware) for performing recording or reproduction with respect to a recording medium (for example, the disk 27 in FIG. 3) to which the parameter information regarding its own recording or reproduction is added. In an information processing method of an information processing apparatus (for example, the disc camcorder 1 in FIG. 1) having the firmware area 71) of the drive memory 47 in FIG.
An acquisition step (for example, step S3 in FIG. 7) for acquiring the parameter information;
A storage control step (for example, step S23 in FIG. 8) for storing parameter information acquired by the processing in the acquisition step in a parameter storage means (for example, the parameter information management area 72 of the drive memory 47 in FIG. 5);
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, A recording / reproducing step (for example, step S43 in FIG. 12) for performing recording or reproduction on the recording medium.

The program according to claim 4 is:
Program storage means (for example, firmware) for storing a recording / reproduction program (for example, firmware) for performing recording or reproduction with respect to a recording medium (for example, the disk 27 in FIG. 3) to which parameter information relating to its own recording or reproduction is added. In a program to be executed by a computer that controls an information processing apparatus (for example, the disk camcorder 1 in FIG. 1) having the firmware area 71) of the drive memory 47 in FIG.
An acquisition step (for example, step S3 in FIG. 7) for acquiring the parameter information;
A storage control step (for example, step S23 in FIG. 8) for storing parameter information acquired by the processing in the acquisition step in a parameter storage means (for example, the parameter information management area 72 of the drive memory 47 in FIG. 5);
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, A recording / reproducing step (for example, step S43 in FIG. 12) for performing recording or reproduction on the recording medium.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  FIG. 1 shows an example of the external configuration of a disc camcorder to which the present invention is applied.

  For example, when the user performs recording or reproduction on a new type of disc that cannot be recorded or reproduced by the disc camcorder 1 of FIG. 1, the user uses the disc camcorder 1 of FIG. The two-dimensional code 2A added to is photographed. The two-dimensional code 2A includes, for example, a position detection pattern 3 for detecting the inclination of the two-dimensional code 2A, a timing pattern 4 for determining module coordinates in the two-dimensional code 2A, and a two-dimensional code as shown in FIG. It consists of format information 5 representing information relating to the error correction rate and mask pattern used in the code 2A, and a data portion 6 representing predetermined information.

  The data portion 6 of the two-dimensional code 2A represents information on parameters related to recording or reproduction of the disc stored in the case 2, such as an adjustment value for adjusting the write strategy and servo. The parameter information is a parameter specific to the manufacturer and type of the disc, and an ID (hereinafter referred to as a disc ID) specific to the manufacturer and type of the corresponding disc is added to the parameter information.

  Here, the parameter information is determined for a certain reference drive. For the drive derived from the reference drive, a parameter offset value for the reference drive is preset. Thereby, compatibility for using the same parameter information between different drives can be maintained.

  FIG. 3 shows a configuration example of the disc camcorder 1 of FIG.

  The disc camcorder 1 shown in FIG. 3 includes a video camera unit 10, a drive 26, and a lid 28, and records images and sound acquired by the video camera unit 10 on a disc 27 mounted on the drive 26, 27 reproduces and outputs the sound and image recorded in 27.

  The video camera unit 10 includes a user I / F 11, a system control unit 12, a program memory 13, a video audio I / F 15, a camera 16, a microphone 17, a speaker 18, a display unit 19, a screen memory 20, an encoding / decoding unit 21, and an encoding. / Decode memory 22, data control unit 23, data memory 24, and drive control unit 25.

  A user I / F (Interface) 11 receives an operation of an operation unit (not shown) including operation keys, input buttons, and switches by a user, and supplies an operation signal representing the operation to the system control unit 12. For example, the user I / F 11 sets the operation mode (operation state) as a moving image shooting mode for shooting a subject as a moving image, a still image shooting mode for shooting a subject as a still image, a moving image playback mode for playing back a moving image, or a still image. Accepts the operation of the changeover switch to switch to the still image shooting mode for playing back images, and switches the operation mode corresponding to that operation to the movie shooting mode, still image shooting mode, movie playback mode, or still image shooting mode An operation signal is supplied to the system control unit 12. Further, the user I / F 11 controls, for example, a light emitting element and an acoustic element (not shown) under the control of the system control unit 12 to generate light and sound for informing the user of the state of the disc camcorder 1.

  The system control unit 12 is connected to the program memory 13 and controls each unit by executing a program stored in the program memory 13. The system control unit 12 is also connected to the video audio I / F 15, the encode / decode unit 21, the data control unit 23, and the drive control unit 25 via the bus 14.

  The program memory 13 stores various programs and data necessary for various processes. The program memory 13 stores a file system, for example.

  The video audio I / F 15 acquires image data (video data) supplied from the camera 16 or audio data (audio data) supplied from the microphone 17 and performs predetermined processing. For example, the video audio I / F 15 extracts the image data of the two-dimensional code 2A from the image data of the still image including the two-dimensional code 2A (FIG. 1) supplied from the camera 16. The video audio I / F 15 recognizes parameter information represented by the data section 6 of the two-dimensional code 2A from the image data of the two-dimensional code 2A, and supplies the information to the data control section 23 via the bus 14. The video audio I / F 15 supplies image data and audio data other than the image data of the still image including the image of the two-dimensional code 2A to the encode / decode unit 21.

  The video audio I / F 15 outputs audio data from the microphone 17 or the encoding / decoding unit 21 to the speaker 18, and outputs image data from the camera 16 or the encoding / decoding unit 21 to the display unit 19.

  Further, the video audio I / F 15 reads data for displaying characters and graphics such as icons and the like stored in the screen memory 20 as necessary, and performs a predetermined calculation based on the data. Then, the video audio I / F 15 outputs image data of characters and figures such as icons obtained as a result of the calculation to the display unit 19.

  The camera 16 captures a subject as a moving image or a still image, and performs A / D conversion on an image signal that is an analog signal of an image obtained as a result. The camera 16 supplies the digital data after A / D processing to the video audio I / F 15 as image data. For example, the camera 16 captures a subject including the two-dimensional code 2A of FIG. 1 as a still image, and supplies image data of the still image including the image of the two-dimensional code 2A to the video audio I / F 15.

  The microphone 17 acquires the sound around the disc camcorder 1 at the time of shooting by the camera 16 and supplies the acquired digital data of the sound to the video audio I / F 15 as sound data.

  The speaker 18 generates sound corresponding to the sound data from the video audio I / F 15. The display unit 19 is configured by an LCD (Liquid Crystal Display), an EVF (Electronic View Finder), or the like, and displays an image corresponding to the image data from the video audio I / F 15.

  The screen memory 20 stores data for displaying characters and graphics such as icons. The disc camcorder 1 may not be provided with the screen memory 20.

  The encode / decode unit 21 stores MPEG-1 (Moving Picture Experts Group phase 1) and MPEG-2 (Moving Picture Experts) while storing image data and audio data from the video audio I / F 15 in the encode / decode memory 22. The data is encoded by a method such as Group phase 2) or MPEG-4 (Moving Picture Experts Group phase 4), and the encoded image data and audio data are supplied to the data control unit 23. Also, the image data and audio data from the data control unit 23 are decoded, and the image data and audio data are supplied to the video audio I / F 15.

  The encode / decode memory 22 stores, for example, image data differences between frames or fields.

  The data control unit 23 manages data stored in the data memory 24 using a FIFO (First In First Out) method. Specifically, the data control unit 23 supplies the image data and audio data from the encoding / decoding unit 21 or the drive control unit 25 to the data memory 24 and stores them, or most of the data stored in the data memory 24 is stored. Old image data and audio data are read out and supplied to the encode / decode unit 21 or the drive control unit 25.

  In addition, the data control unit 23 supplies information about parameters supplied from the video audio I / F 15 via the bus 14 to the data memory 24 under the control of the system control unit 12, or stores the parameter information in the data memory 24. The stored parameter information is read and supplied to the drive control unit 25.

  The data memory 24 temporarily stores image data, audio data, and parameter information supplied from the data control unit 23.

  The drive control unit 25 performs discontinuous handshaking in accordance with the drive 26 and the ATA (AT Attachment) or ATAPI (AT Attachment Packet Interface) standards, and the image data and audio data from the data control unit 23 are transferred to the drive 26. Are supplied (transferred) to or received from the disk 27 mounted on the drive 26. The drive control unit 25 supplies the image data and audio data received from the drive 26 to the data control unit 23. Further, the drive control unit 25 supplies parameter information from the data control unit 23 to the drive 26 under the control of the system control unit 12. Further, the drive control unit 25 supplies various commands to the drive 26 under the control of the system control unit 12.

  In the following description, it is assumed that the drive control unit 25 and the drive 26 perform communication in accordance with ATA or ATAPI standards, but not ATA or ATAPI, for example, SCSI (Small Computer System Interface), USB (Universal Serial Bus). ), IEEE (Institute of Electrical and Electronics Engineers) 1394, or other standards.

  A disk 27 made of CD-R, CD-RW, MO, MD, DVD-R, DVD-RW, or the like is mounted on the drive 26. Specifically, the user attaches the disc 27 to the drive 26 by opening the lid 28 and inserting the disc 27 into the drive 26. Further, the user attaches / detaches the disk 27 to / from the drive 26 by opening the lid 28 and ejecting the disk 27 from the drive 26.

  FIG. 4 shows a detailed configuration example of the drive 26 of FIG.

  4 includes a spindle motor 41, an optical pickup 42, a thread 43, a reproduction processing unit 44, a servo control unit 45, a microcomputer 46, a drive memory 47, a memory controller 48, a host I / F 49, an information memory. 50, a memory controller 51, a cache memory 52, and a recording processing unit 53. The image data and audio data supplied from the drive control unit 25 are recorded on the disk 27 and reproduced from the disk 27. Data is supplied to the drive control unit 25.

  The user opens the lid 28 and inserts the disk 27 into the drive 26, thereby mounting the disk 27 on the drive 26. Specifically, the disk 27 is coupled to the shaft of the spindle motor 41 by a clamping mechanism (not shown). The spindle motor 41 drives the disk 27 to rotate.

  An optical pickup 42 is disposed at a position facing the data recording surface of the disk 27 (upper part in FIG. 4). The optical pickup 42 is mounted on a thread 43 to which a motor is connected via a driving force transmission member such as a gear, and moves in the radial direction of the disk 27. The optical pickup 42 controls the output of the laser beam based on the recording data from the recording processing unit 53 and records the recording data on the disk 27. The optical pickup 42 also condenses and irradiates (outputs) the laser light on the disk 27, and receives the reflected light obtained by reflecting the irradiated laser light on the disk 27. Data recorded on the disk 27 is read (reproduced) from the recording surface. The optical pickup 42 supplies the received reflected light to the reproduction processing unit 44.

  The reproduction processing unit 44 performs an RF signal process for obtaining a RF (Radio Frequency) signal by performing photoelectric conversion or the like on the reflected light from the optical pickup 42. The reproduction processing unit 44 supplies a servo signal obtained from the RF signal to the servo control unit 45.

  Further, the reproduction processing unit 44 binarizes the reproduction signal obtained from the RF signal. A PLL (Phase Locked Loop) circuit (not shown) incorporated in the reproduction processing unit 44 generates a clock synchronized with a reproduction signal after binarization processing (hereinafter referred to as reproduction data). The reproduction processing unit 44 performs EFM (Eight to Fourteen Modulation) demodulation (decoding) on the reproduction data in synchronization with the clock, and supplies the reproduction data after EFM demodulation to the memory controller 48.

  The servo control unit 45 controls the focus and tracking of the optical pickup 42 by driving the spindle motor 41 and the thread 43 motor based on the servo signal from the reproduction processing unit 44 under the control of the microcomputer 46.

  The microcomputer 46 controls each unit in accordance with a command supplied from the host I / F 49 by executing firmware that is a program for recording or reproducing with respect to the disk 27 and stored in the drive memory 47. For example, the microcomputer 46 supplies parameter information from the memory controller 51 to the drive memory 47 for storage. Further, the microcomputer 46 controls the servo control unit 45 and the recording processing unit 53 based on parameter information stored in the drive memory 47.

  The drive memory 47 is composed of a nonvolatile memory, and stores firmware, parameter information, and the like.

  The memory controller 48 stores the reproduction data from the reproduction processing unit 44 in the cache memory 52 or reads the reproduction data stored in the cache memory 52 under the control of the microcomputer 46. The memory controller 48 supplies the read reproduction data to the host I / F 49.

  Under the control of the microcomputer 46, the host I / F 49 transmits the reproduction data supplied from the memory controller 48 to the drive control unit 25 in FIG. 3 in accordance with a standard such as ATA or ATAPI.

  The memory controller 48 supplies the reproduction data to the microcomputer 46, and the microcomputer 46 performs a predetermined process on the reproduction data from the memory controller 48, and uses the host I / F 49 for the reproduction data after the predetermined process. Via the drive control unit 25. In this case, the microcomputer 46 may transmit the reproduction data from the memory controller 48 to the drive control unit 25 via the host I / F 49 as it is without performing any processing.

  The host I / F 49 acquires image data and audio data, parameter information, or commands supplied from the drive control unit 25 under the control of the microcomputer 46. The host I / F 49 supplies the image data and audio data or parameter information to the memory controller 51. Further, the host I / F 49 supplies the acquired command to the information memory 50 and stores it, reads the command stored in the information memory 50, and supplies it to the microcomputer 46.

  The information memory 50 stores a command (ATA / ATAPI packetized command data) from the host I / F 49. The memory controller 51 stores image data and audio data from the host I / F 49 as recording data in the cache memory 52 under control of the microcomputer 46, and parameter information from the host I / F 49 in the cache memory 52. Remember. In addition, the memory controller 51 reads out the recording data stored in the cache memory 52 and supplies it to the recording processing unit 53. Further, the memory controller 51 reads out parameter information stored in the cache memory 52 and supplies it to the microcomputer 46.

  The recording processing unit 53 modulates the recording data from the memory controller 51 under the control of the microcomputer 46 and supplies it to the optical pickup 42.

  FIG. 5 shows a detailed configuration example of the drive memory 47 of FIG.

  As shown in FIG. 5, the drive memory 47 is composed of BANK # 0 and BANK # 1. BANK # 0 is a firmware area 71, and BANK # 1 is a parameter information management area 72. Here, even if the data stored in one of the firmware area 71 and the parameter management area 72 is deleted, the data stored in the other data is not deleted. In the firmware area 71 and the parameter management area 72, data can be added, deleted, rearranged, and overwritten.

  Firmware is stored in the firmware area 71. In the parameter information management area 72, parameter information supplied from the drive control unit 25 (FIG. 3) via the host I / F 49 (FIG. 4), the memory controller 51, and the microcomputer 46, and the parameter information are added. Stored disk IDs are stored in association with each other. Hereinafter, a disk ID having a value “i” is represented as a disk ID #i. The parameter information management area 72 stores the number of disk IDs corresponding to the parameter information stored in the parameter information management area 72.

  For example, in FIG. 5, the parameter information management area 72 stores parameter information in association with each of the disk IDs # 0 to # 3. The parameter information management area 72 stores “4”, which is the number of disk IDs (number of disk IDs) corresponding to the stored parameter information.

  Here, when the camera 16 in FIG. 3 takes a two-dimensional code 2A representing the parameter information to which the data section 6 is added with the disk ID # 4 as a still image, the video audio I / F 15 includes the two-dimensional code. Image data of a still image including the image of code 2A is supplied. The video audio I / F 15 extracts the image data of the image of the two-dimensional code 2A from the image data from the camera 16, and recognizes the parameter information to which the disk ID # 4 is added. The video audio I / F 15 supplies the parameter information to the data control unit 23 via the bus 14.

  As shown in FIG. 6, the data control unit 23 causes the data memory 24 to store parameter information to which the disk ID # 4 from the video audio I / F 15 is added. The data control unit 23 reads parameter information from the data memory 24 under the control of the system control unit 12, and supplies the parameter information to the drive 26 (host I / F 49) via the drive control unit 25.

  The host I / F 49 of the drive 26 stores the parameter information supplied from the drive control unit 25 in the cache memory 52 via the memory controller 51. Then, under the control of the microcomputer 46, the memory controller 51 reads out parameter information stored in the cache memory 52 and supplies it to the microcomputer 46. As shown in FIG. 6, the microcomputer 46 associates the parameter information supplied from the memory controller 51 with the disk ID # 4 added to the parameter information, and associates the parameter information management area 72 in the drive memory 47 with the parameter information. Remember me.

  Further, as shown in FIG. 6, the microcomputer 46 changes the number of disk IDs stored in the parameter information management area 72 from “4” shown in FIG. 5 to “5” incremented by one.

  Next, a parameter information transmission process in which the disc camcorder unit 10 of the disc camcorder 1 of FIG. 3 transmits parameter information to the drive 26 will be described with reference to FIG. This parameter information transmission process is started, for example, when the user operates a changeover switch of an operation unit (not shown) to switch the operation mode to the moving image shooting mode.

  In step S1, the camera 16 captures the subject as a moving image, and as a result, acquires a moving image (image data) of the subject. Specifically, the user I / F 11 receives an operation of the changeover switch by the user, and supplies an operation signal indicating switching of the operation mode corresponding to the operation to the moving image shooting mode to the system control unit 12. The system control unit 12 controls the camera 16 in accordance with an operation signal from the user I / F 11, captures a subject as a moving image, and acquires a moving image of the subject. The camera 16 supplies the acquired image data of the moving image to the video audio I / F 15, and the video audio I / F 15 displays the moving image on the display unit 19 based on the image data.

  Here, for example, when the user shoots the two-dimensional code 2A in order to perform recording or reproduction on a new type of disk 27 for which information on parameters of his / her own recording or reproduction is not yet stored in the drive 26, While viewing the moving image displayed on the display unit 19 in step S1, the disc camcorder 1 (the camera 16) is moved so that the two-dimensional code 2A is placed at a desired position of the moving image displayed on the display unit 19. Let Then, the user operates the changeover switch of the operation unit to instruct switching of the operation mode to the still image shooting mode, and then operates the code switch of the operation unit for instructing the shooting of the two-dimensional code 2A. . Note that the user may operate only the code switch without operating the changeover switch.

  The user I / F 11 accepts an operation of the code switch of the operation unit by the user, and supplies an operation signal representing a photographing instruction of the two-dimensional code 2A corresponding to the operation to the system control unit 12.

  After the process of step S1, the process proceeds to step S2, and the system control unit 12 determines whether or not the user has commanded to shoot the two-dimensional code 2A, that is, the operation signal indicating the command to shoot the two-dimensional code 2A from the user I / F11. To determine whether or not

  If it is determined in step S2 that photographing of the two-dimensional code 2A is not instructed, the process returns to step S1 and the above-described processing is repeated.

  On the other hand, when it is determined in step S2 that the photographing of the two-dimensional code 2A is instructed, the process proceeds to step S3, and the camera 16 photographs the subject as a still image under the control of the system control unit 12, and as a result, An image (image data) is acquired. Then, the camera 16 supplies the still image to the video audio I / F 15.

  After the processing in step S3, the process proceeds to step S4, and the video audio I / F 15 extracts the image of the two-dimensional code 2A from the still image supplied from the camera 16 in step S2, and then proceeds to step S5.

  In step S5, the video audio I / F 15 stores the data portion 6 on the basis of the position detection pattern 3 (FIG. 2), the timing pattern 4, and the format information 5 (the image thereof) in the image of the two-dimensional code 2A. The parameter information to which the indicated disk ID is added is recognized.

  After the processing of step S5, the process proceeds to step S6, where the video audio I / F 15 determines whether or not the parameter information is normally recognized. If it is determined that the parameter information is not normally recognized, Returning to S3, the above-described processing is repeated.

If it is determined in step S6 that the parameter information has been recognized normally,
The video audio I / F 15 supplies the parameter information to the data control unit 23 via the bus 14, and the process proceeds to step S7.

  In step S7, the data control unit 23 stores the parameter information supplied from the video audio I / F 15 in step S6 in the data memory 24, and proceeds to step S8.

  In step S <b> 8, the data control unit 23 reads out parameter information from the data memory 24, converts the parameter information into, for example, an ATA / ATAPI packet, and supplies the ATA / ATAPI packet to the drive control unit 25.

  After the process of step S8, the process proceeds to step S9, and the drive control unit 25 transmits the packetized parameter information to the drive 26, and ends the process.

  Next, a parameter information storage process in which the drive 26 stores the parameter information transmitted from the drive control unit 25 in step S9 of FIG. 7 will be described with reference to FIG.

  In step S 21, the host I / F 49 receives the parameter information transmitted from the drive control unit 25 in step S 9 of FIG. 7, and supplies the parameter information to the memory controller 51.

  After the process of step S21, the process proceeds to step S22, and the memory controller 51 stores the parameter information supplied from the host I / F 49 in step S21 in the cache memory 52, and proceeds to step S23.

  In step S23, the microcomputer 46 reads the parameter information stored in the cache memory 52 via the memory controller 51, and decomposes it into the parameter information and the disk ID added thereto. Then, the microcomputer 46 stores (stores) the parameter information in the parameter information management area 72 of the drive memory 47 in association with the disk ID added thereto.

  After step S23, the process proceeds to step S24, where the microcomputer 46 increments the number of disk IDs stored in the parameter information management area 72 of the drive memory 47 by 1, and ends the process.

  For example, as shown in FIG. 5, when parameter information corresponding to the disk IDs # 0 to ID3 is stored in the parameter information management area 72, the parameter information to which the disk ID # 4 is added from the drive control unit 24 is stored. When the information is transmitted, the microcomputer 46 stores the parameter information in association with the disk ID # 4 in the parameter information management area 72 as shown in FIG. Increment to "5".

  When nothing is stored in the parameter information management area 72, it is assumed that “0” is stored in the parameter information management area 72 as the number of disk IDs.

  As described above, in the disc camcorder 1 of FIG. 1, the user only takes a picture of the two-dimensional code 2A added to the case 2 of the disc 27, and the drive 26 sets parameters relating to recording or reproduction of the disc 27. This information can be easily stored in a short time. As a result, for example, recording or reproduction on a new type of disk 27 can be easily performed in a short time.

  Further, only by using the new type of disk 27 and the disk camcorder 1, it is possible to perform recording or reproduction on the new type of disk 27.

  Next, with reference to FIG. 9 to FIG. 12, the determination of the recording target or playback target disk 27 mounted on the drive 26 will be described.

  9 and 10 show examples of the format of the disk 27. FIG.

  9 and 10, the disk 27 is assumed to be a DVD.

  When the disc 27 is a DVD-R or DVD-RW, as shown in the upper part of FIG. 9, the disc 27 includes, in order from the inner circumference side, a reading area 111 that represents the head of the area constituting the disc 27, an optical A beam intensity test area 112 for testing the intensity of the laser beam emitted from the pickup 42, a management data area 113 for recording information such as a recording start address, a lead-in area 114, and file system information are recorded. A file system information area 115 for recording video data and audio data, a lead-out area 117 representing the end of the data area 116, and a termination area 118 representing the end of the area constituting the disk 27. Yes.

  When the disk 27 is a DVD-ROM (Digital Versatile Disk Read Only Memory), the disk 27 is not provided with the beam intensity test area 112 as shown in the middle of FIG.

  As shown in the lower part of FIG. 9, the lead-in area 114 is provided with a reference code area 131, a buffer area 132, a control data area 133, and a buffer area 134 from the inner periphery side. In the reference code area 131, a pattern for adjusting the processing of the reproduction processing unit 44 is recorded.

  As shown in the upper side of FIG. 10, the control data area 133 is provided with a physical format information area 151 for storing physical format information, a disk ID area 152 for storing a disk ID, and the like.

  In the physical format information area 151, as shown in the lower side of FIG. 10, for example, a book type (BOOK TYPE) indicating the standard of the disk 27, the size of the disk 27 (DISK SIZE), and the number of layers of the disk 27 , And the physical sector number at the end of the lead-out area 117 are stored.

  Next, with reference to FIG. 11, a process in which the drive 26 in FIG. 4 discriminates the disk 27 attached to itself will be described.

  In the drive 26 of FIG. 4, the microcomputer 46 controls the servo control unit 45 to reproduce the disk ID recorded in the disk ID area 152 (FIG. 10) from the disk 27. As a result, the microcomputer 46 is supplied with a disk ID as reproduction data via the optical pickup 42, the reproduction processing unit 44, and the memory controller 48.

  The microcomputer 46 compares the reproduced disk ID with the disk ID stored in the parameter information management area 72 of the drive memory 47, and obtains parameter information corresponding to the same disk ID as the reproduced disk ID. read out.

  For example, as shown in FIG. 11, when parameter information is stored in the parameter information management area 72 in association with the disk IDs # 0 to # 4, the reproduced disk ID is the disk ID # 4. At some time, the parameter information corresponding to the disk ID # 4 is read from the parameter information management area 72. In FIG. 11, the reserved area provided in the parameter information management area 72 is an empty area in which parameter information is not yet stored in association with the disk ID.

  Next, with reference to FIG. 12, a disc discrimination process in which the drive 26 discriminates a disc 27 to be recorded or reproduced is described. This disc determination process is started when the user inserts the disc 27 into the drive 26 by opening (opening) the lid 28 and inserting the disc 27 to be recorded or reproduced into the drive 26, for example. The

  In step S41, the microcomputer 46 controls the servo control unit 45 to reproduce the disk ID stored in the disk ID area 152 (FIG. 10) of the disk 27 loaded in the drive 26. As a result, the microcomputer 46 is supplied with a disk ID as reproduction data via the optical pickup 42, the reproduction processing unit 44, and the memory controller 48.

  After the process of step S41, the process proceeds to step S42, and the microcomputer 46 compares the disk ID stored in the parameter information management area 72 of the drive memory 47 with the disk ID reproduced from the disk 27 in step S41.

  Here, since the number of disk IDs that is the number of disk IDs corresponding to the parameter information stored therein is stored in the parameter information management area 72, the microcomputer 46 stores the parameter information management area 72 in the parameter information management area 72. The number of disc IDs that have been recorded can be recognized. As a result, the microcomputer 46 can read the disk ID newly stored in step S23 of FIG. 8 by reading the number of disk IDs. That is, the microcomputer 46 can also recognize the newly stored disk ID. Therefore, it is not necessary to change the firmware executed by the microcomputer 46 in order to make the microcomputer 46 recognize the newly stored disk ID.

  After the processing in step S42, the microcomputer 46 proceeds to step S43, and the microcomputer 46 reads information on the parameter corresponding to the same disk ID as the reproduced disk ID among the disk IDs stored in the parameter information management area 72. That is, the microcomputer 46 reads parameter information corresponding to the disk 27 loaded in the drive 26. Then, the microcomputer 46 sets (updates) an adjustment value for adjusting the write strategy and the servo based on the parameter information. The microcomputer 46 controls the recording processing unit 53 or the servo control unit 45 by executing the firmware stored in the firmware area 71 (FIG. 5) based on the set write strategy and adjustment value. As a result, the drive 26 can perform recording and reproduction with respect to the disk 27 mounted on itself.

  If the same disc ID as the reproduced disc ID is not stored in the parameter information management area 72, the microcomputer 46 indicates a disc 27 discriminating error to the video camera unit 10 via the host I / F 49. Send a command. In the video camera unit 10, in response to the command, a message indicating that recording or reproduction with respect to the disk 27 mounted on the drive 26 cannot be performed is displayed on the display unit 19.

  The user recognizes that the disc camcorder 1 cannot perform recording or reproduction with respect to the disc 27 attached to the drive 26 by looking at the message displayed on the display unit 19, and the case where the disc 27 is stored. The two-dimensional code 2A is photographed. As a result, parameter information related to recording or reproduction of the disk 27 represented by the two-dimensional code 2A is stored in the parameter information management area 72 of the drive 26, and the drive 26 can perform recording and reproduction on the disk 27. .

  As described above, the drive 26 sets only parameters such as adjustment values for adjusting the write strategy and servo without updating the firmware even when recording or reproduction is performed on a new type of disk 27, for example. (Updating) enables recording or playback on the disk 27, so that the time required to enable recording or playback on a new type of disk 27 is shortened compared to when firmware update is required. be able to. In addition, since there is no need to update the firmware, it is possible to prevent the data of the firmware from being lost when an error occurs during the firmware update.

  In the above description, the disk 27 is discriminated (identified) based on the disk ID stored in the disk ID area 152. However, the optical characteristics (for example, reflectance, wobble, etc.) of the physical layer of the disk 27 are described. The disk 27 may be determined in synchronization with the servo adjustment of the servo control unit 45 based on the frequency).

  The data portion 6 of the two-dimensional code 2A represents not the parameter information itself but the parameter information encrypted. In this case, the video audio I / F 15 decodes (decodes) the data represented by the data portion 6 recognized from the image of the two-dimensional code 2A, and obtains parameter information.

  In the present embodiment, the two-dimensional code 2A is added to the case 2 in which the disk 27 is stored, but it may be printed on the label surface of the disk 27 or on the package. Moreover, what represents the parameter information is not limited to the two-dimensional code 2A.

  As described above, the disc camcorder 1 acquires a still image including an image of the two-dimensional code 2A representing parameter information by the camera 1, and manages the parameter information represented by the two-dimensional code 2A in the parameter information management of the drive memory 47. Since the data is stored in the area 72, for example, recording or reproduction on a new type of recording medium can be performed in a short time.

  Next, the series of processes described above can be performed by dedicated hardware or by software. When a series of processing is performed by software, a program constituting the software is installed in a general-purpose computer or the like.

  Therefore, FIG. 13 shows a configuration example of an embodiment of a computer in which a program for executing the series of processes described above is installed.

  The program can be recorded in advance in a storage unit 208 or a ROM (Read Only Memory) 202 as a recording medium built in the computer.

  Alternatively, the program is temporarily or permanently stored on a removable medium 213 such as a flexible disk, a compact disc read only memory (CD-ROM), a magneto optical disk (MO), a DVD (digital versatile disc), a magnetic disk, or a semiconductor memory. Can be stored (recorded). Such a removable medium 213 can be provided as so-called package software.

  The program is installed on the computer from the removable medium 213 as described above, and is transferred from the download site to the computer wirelessly via a digital satellite broadcasting artificial satellite, LAN (Local Area Network), Internet It is possible to transfer the program transferred in such a manner to the computer via a network via the network, so that the communication unit 209 can receive the program and install it in the built-in storage unit 208.

  The computer includes a CPU (Central Processing Unit) 201. An input / output interface 205 is connected to the CPU 201 via the bus 204, and the CPU 201 has an input unit 206 configured by a user such as a keyboard, a mouse, and the microphone 17 via the input / output interface 205. When a command is input by an operation or the like, the program stored in the ROM 202 is executed accordingly. Alternatively, the CPU 201 transfers a program stored in the storage unit 208, a program transferred from a satellite or a network, received by the communication unit 209 and installed in the storage unit 208, or a removable medium 213 mounted on the drive 212. The program read from the program and installed in the storage unit 208 is loaded into the RAM 203 and executed. Thereby, the CPU 201 performs processing according to the flowchart described above or processing performed by the configuration of the block diagram described above. Then, the CPU 201 outputs the processing result as necessary, for example, via the input / output interface 205, from the output unit 207 configured by the speaker 18, the display unit 19, or the like, or from the communication unit 209. Furthermore, it is recorded in the storage unit 208.

  The photographing unit 210 corresponds to the camera 16 or the like and photographs a subject to acquire an image. The drive 211 corresponds to the drive 26 and performs recording or reproduction on the disk 27.

  The present invention can be applied to, for example, a video camera using an image recording optical disk such as a DVD as a recording medium.

  Here, in this specification, the processing steps for describing a program for causing a computer to perform various types of processing do not necessarily have to be processed in time series according to the order described in the flowchart, but in parallel or individually. This includes processing to be executed (for example, parallel processing or processing by an object).

  Further, the program may be processed by one computer or may be distributedly processed by a plurality of computers. Furthermore, the program may be transferred to a remote computer and executed.

It is a figure which shows the example of an external appearance structure of the disc camcorder to which this invention is applied. It is a figure which shows the example of a two-dimensional code. It is a figure which shows the structural example of a disc camcorder. It is a figure which shows the detailed structural example of a drive. It is a figure which shows the detailed structural example of a drive memory. It is a figure explaining the memory | storage of the information of a new parameter. It is a flowchart explaining the parameter information transmission process. It is a flowchart explaining the information storage process of a parameter. It is a figure which shows the example of the format of a disk. It is a figure which shows the example of the format of a disk. It is a figure explaining the process which discriminate | determines a disk. It is a flowchart explaining a disk discrimination | determination process. It is a block diagram which shows the structural example of one Embodiment of the computer to which this invention is applied.

Explanation of symbols

  1 disc camcorder, 2 case, 2A 2D code, 16 camera, 26 drive, 27 disc, 44 playback processing unit, 45 servo control unit, 46 microcomputer, 47 drive memory, 53 recording processing unit, 71 firmware area, 72 parameter information Management area

Claims (4)

In an information processing apparatus for performing recording or reproduction with respect to a recording medium to which parameter information relating to own recording or reproduction is added,
Program storage means for storing a recording / reproducing program for recording or reproducing the recording medium;
Obtaining means for obtaining information of the parameter;
Storage control means for storing parameter information acquired by the acquisition means in a parameter storage means;
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, An information processing apparatus comprising: a recording / reproducing unit that performs recording or reproduction on the recording medium. The information processing apparatus according to claim 1, wherein the parameter information is added to a label surface, a package, or a case of the recording medium. In an information processing method of an information processing apparatus comprising program storage means for storing a recording / reproducing program for recording or reproducing with respect to a recording medium to which information on parameters relating to the recording or reproduction of itself is added,
An obtaining step for obtaining information of the parameter;
A storage control step of storing parameter information acquired by the processing of the acquisition step in a parameter storage unit;
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, And a recording / reproducing step of recording or reproducing the recording medium. In a program to be executed by a computer that controls an information processing apparatus having a program storage means for storing a recording / reproducing program for recording or reproducing information on a recording medium to which information on the recording or reproduction of itself is added,
An obtaining step for obtaining information of the parameter;
A storage control step of storing parameter information acquired by the processing of the acquisition step in a parameter storage unit;
Of the parameter information stored in the parameter storage means, read out the parameter information corresponding to the recording medium to be recorded or reproduced, and based on the parameter information, by executing the recording and reproduction program, A recording / reproducing step of recording or reproducing the recording medium.

Images