JP4881108B2 - Recording apparatus and recording apparatus control method - Google Patents

Description

The present invention relates to a recording apparatus and a control method of the recording apparatus , and more particularly to a technique suitable for use in recording a video signal and an audio signal on a recording medium that requires a format such as an optical disk.

  Video camcorders (hereinafter referred to as disc camcorders) that use optical discs (discs) as recording media are known as camcorders that record video signals and audio signals. In such a disc camcorder, a technology for detecting a disc having a different physical format as a disc, performing a disc format process for recording in a different recording method according to the type, and recording a video signal has been proposed (for example, patents). Reference 1).

  There are various types of discs used in disc camcorders, such as DVD-R and DVD-RW. For example, for a DVD-R disc, video and audio are recorded in accordance with a DVD video format (hereinafter referred to as Video format). For DVD-RW discs, video and audio are recorded according to the video format or video recording format (hereinafter referred to as VR format).

  In the disc camcorder, if the disc is not formatted at the recording start stage, the video and audio signals are stored in a temporary memory. A technique has also been proposed in which a predetermined disk formatting process is automatically performed during this period, and recording of temporary memory information to the disk is started after the process (for example, Patent Document 2).

  Furthermore, recording to a disc requires a file system in order to handle the recording data as a file, and file formatting processing is also required for formatting. The optical disc employs a UDF (Universal Disk Format) format file, and DVD-R and DVD-RW support the UDF 2.0 file format.

  As described above, a disc camcorder needs to perform file format processing and disc format processing so that data can be written to the disc before recording video and audio on the optical disc.

JP 2003-078874 A JP 2005-243071 A

  When recording high-definition video and audio such as high-definition standard (HDTV) on a disc, it is difficult to use a disc larger than a conventional 8 cm size disc with a disc camcorder in consideration of portability and downsizing. . Therefore, for example, by using a codec with high compression efficiency such as MPEG4-AVC (H.264) standard, it is possible to record high-quality video and audio on a conventional size disk while suppressing improvement in bit rate. It is.

  However, UDF2.0, which is the file format for the current DVD recording, does not support HDTV video and audio standards, so a new file format corresponding to these standards is required.

  However, in order to perform recording for a long time, it is necessary to perform compression at a low bit rate such as reducing the resolution of the video to SDTV or reducing the compression rate. In consideration of reproduction by other reproduction apparatuses, an advantage that compatibility can be easily obtained is obtained by recording as DVD recording using the compression method based on the current MPEG2 at the resolution of SDTV.

  In addition, a disc camcorder has a plurality of disc file formats, disc formats, and video (audio) standards, and cannot be recorded unless the respective combinations are appropriately selected.

  In particular, regarding the file format, once the recording medium is initialized with a specific format, recording with a different file format cannot be performed for the subsequent recording operation. Of course, if the recording medium is configured in a re-initializable disc format, it is possible to shoot by re-initializing with the different file format. In this case, all the contents recorded so far are erased. Problems occur.

  The present invention has been made in view of the above, and when an imaging apparatus is operating with a video signal system different from that of a recording medium initialized with an arbitrary file format, additional recording is performed with a different video signal system. The purpose is to avoid mistakes.

The recording apparatus of the present invention includes a generating unit that generates a first video signal and a second video signal having a resolution lower than that of the first video signal, and a first unit for recording the first video signal. A recording medium that can be initialized with one recording format and a second recording format for recording the second video signal, and is initialized according to either the first recording format or the second recording format. Recording means for recording the first video signal or the second video signal output from the generating means on the already-recorded recording medium, and the recording medium are initialized according to the first recording format The first video signal is output when the recording medium is output, and the second video signal is output when the recording medium is initialized according to the second recording format. And a controlling means for selecting a video signal output from said generating means based on the format.
According to another aspect of the recording apparatus of the present invention, a generation unit that generates an HD video signal and an SD video signal, and a first recording format for recording the HD video signal are provided. A recording medium that can be initialized with a second recording format for recording the SD video signal, and that has been initialized according to either the first recording format or the second recording format. On the other hand, a recording means for recording the HD video signal or the SD video signal output from the generating means, and the HD video signal when the recording medium is initialized according to the first recording format. When the recording medium has been initialized according to the second recording format, the recording format of the recording medium is output so that the SD video signal is output. And a controlling means for selecting a video signal output from said generating means on the basis of Tsu and.

The recording apparatus control method according to the present invention includes a generation step of generating a first video signal and a second video signal having a resolution lower than that of the first video signal, and recording the first video signal. A recording medium that can be initialized with a first recording format for recording and a second recording format for recording the second video signal, which is either the first recording format or the second recording format A recording step of recording the first video signal or the second video signal output from the generation step on a recording medium that has been initialized according to the method, and the recording medium is initialized according to the first recording format. The first video signal is output when the recording medium is configured, and the second video signal is output when the recording medium is initialized according to the second recording format. And a controlling step of selecting a video signal wherein the generating step is output based on the recording format of the medium.
According to another aspect of the control method of the recording apparatus of the present invention, there is provided a generating step for generating an HD video signal and an SD video signal, and a first step for recording the HD video signal. A recording medium that can be initialized with a recording format and a second recording format for recording the SD video signal, and has been initialized according to either the first recording format or the second recording format A recording step of recording the HD video signal or the SD video signal output from the generation step on the recording medium; and the HD when the recording medium is initialized according to the first recording format. Of the recording medium so that the SD video signal is output when the recording medium is initialized according to the second recording format. And a controlling step of selecting a video signal wherein the generating step is output based on the recording format.

  According to the present invention, even when a recording medium initialized with a file format different from the file format in which the imaging apparatus is operating is loaded, recording is performed with a video signal of a video signal system that is compatible with the loaded recording medium. Thus, it is possible to avoid an error in additionally recording with a video signal of a method in which the mounted recording medium does not match the initialized format.

Hereinafter, a description will be given using embodiments of the present invention.
FIG. 1 is a block diagram showing the configuration of a disc camcorder using an optical disc as a recording medium. In FIG. 1, reference numeral 101 denotes a lens, and reference numeral 102 denotes a CCD (Charge Coupled Device) which is a solid-state imaging device.

  Reference numeral 103 denotes a video signal processing circuit that generates a video signal from the imaging signal, 104 a video display output circuit that outputs the video signal to a display device or an output terminal, 105 a video output terminal, and 106 an LCD (Liquid Crystal) that is a video display device. Display). Reference numeral 107 denotes a switching circuit for switching a video signal compression method, 108 denotes a first video signal compression circuit, 109 denotes a second video signal compression circuit, and 110 denotes a recording circuit for recording the compressed video signal on a recording medium.

  Reference numeral 111 denotes an optical disk that is a recording medium, 112 denotes an initialization request circuit, and 113 denotes a microcomputer that performs system control of the disk camcorder.

  Reference numeral 114 denotes an initialization selection circuit that selects the type of format for initializing the optical disk 111. Reference numerals 115, 116, 117, and 118 denote first, second, and second that respectively initialize the optical disk 111 in different formats. Third and fourth initialization circuits. Reference numeral 119 denotes a camera mode switching circuit for selecting either the HD mode or the SD mode, and reference numeral 120 denotes a recording medium detection circuit for detecting the optical disk 111.

  The light imaged by the lens 101 is photoelectrically converted by the CCD 102 to become an imaging signal. The imaging signal is converted into a video signal by the video signal processing circuit 103. Further, in accordance with an instruction from the microcomputer 113, an OSD (On Screen Display) signal is generated as a menu screen display for camcorder status display and various settings.

  The video signal is output to the video display output circuit 104 and the switching circuit 107. The video signal becomes an external output signal in the video display output circuit 104 and is externally output via the video output terminal 105. Further, the video display output circuit 104 also performs control for displaying video on the LCD 106.

  On the other hand, the video signal is also input to the switching circuit 107. The switching circuit 107 outputs the input video signal to one of the first video signal compression circuit 108 and the second video signal compression circuit 109 in accordance with an instruction from the microcomputer 113. The first video signal compression circuit 108 and the second video signal compression circuit 109 compress the video signal by different compression methods.

  The compression method of the first video signal compression circuit 108 is the MPEG4-AVC (H.264) method, which compresses the HDTV video signal. The compression method of the second video signal compression circuit 109 is the MPEG2 method and compresses the SDTV video signal. Further, since the video signal output from the video signal processing circuit 103 is a signal corresponding to HDTV, the second video signal compression circuit 109 includes a down-conversion circuit that down-converts HDTV to SDTV before compression of the signal. It is out.

  The compressed video signal is recorded on the optical disk 111 by the recording circuit 110. The recording circuit 110 converts the video signal into predetermined data. The converted data is recorded with laser light via a pickup unit (not shown). At this time, the motor driver control for controlling the driving of the spindle motor that rotates the optical disk 111 and the tracking motor that drives the pickup unit is also performed from the recording circuit 110. The spindle motor, tracking motor, and motor driver are not shown.

  The optical disk 111 records information by irradiating the recording layer with laser light during recording, such as DVD-R and DVD-RW. During reproduction, the recording layer is irradiated with laser light, and the reflected light is detected by a pickup unit to extract information (the structure of the optical disk 111 is not shown). The recording medium detection circuit 120 reads the disk information of the optical disk 111 and outputs it to the microcomputer 113.

  The microcomputer 113 determines from the result whether or not the optical disk 111 is mounted. Further, it is determined whether or not the format has been completed.

  The initialization selection circuit 114 selects a circuit for formatting from the first initialization circuit 115 to the fourth initialization circuit 118. The first initialization circuit 115 performs file formatting with UDF 2.0 for DVD recording, and disk formatting with the Video format. The second initialization circuit 116 performs file formatting with UDF 2.0 for DVD recording and disk formatting with the VR format. The third initialization circuit 117 performs file formatting with UDF2.5 for AVCHD recording, and disc formatting with the Video format. The fourth initialization circuit 118 performs file formatting with UDF2.5 for AVCHD recording and disk formatting with the VR format. In the present embodiment, as described above, four types of initialization circuits 115 to 118 for outputting initialization data for formatting with a combination of different file formats and disk formats are provided. The format type is instructed from the microcomputer 113.

  The recording circuit 110 records initialization data corresponding to the file format selected during the formatting process on the optical disk 111. The initialization request circuit 112 outputs to the microcomputer 113 the format type and format start instruction selected by the operation key (the operation key is not shown) from the menu screen displayed on the video output terminal 105 or the LCD 106. The camera mode switching circuit 119 selects from the menu screen whether to record in the SDTV or HDTV camera mode, and outputs the selection result to the microcomputer 113.

As described above, the AVCHD standard has recently been proposed as a standard for consumer recorders for recording HDTV video signals on a recording medium such as a DVD disk.
In the AVCHD standard, the MPEG4-AVC (H.264) method is used as a moving image compression method. Further, UDF2.5 is used as a file format for recording on an optical disc. In the present embodiment, two types of recording formats, the DVD standard and the AVCHD standard, can be selected as the recording format.

Next, a combination of the camera mode, the video compression method, the optical disk file format, and the signal recording method in this embodiment will be described.
There are two types of recording formats for disc camcorders: DVD and AVCHD. DVD uses the MPEG2 system as a moving image compression system, UDF2.0 as a file format of an optical disk, and supports SDTV resolution recording as a camera mode.

  On the other hand, AVCHD uses the MPEG4-AVC (H.264) system as a moving picture compression system and UDF2.5 as the file format of an optical disk, and is compatible with HDTV resolution recording. For each recording format, the video format or the VR format can be selected when recording on the optical disc.

  FIG. 2 is a diagram showing a configuration capable of recording in a combination of each camera mode, recording format, and disk format. Note that “◯” indicates a recordable combination, and “X” indicates a recordable combination.

  As shown in FIG. 2, there are eight combinations, but when DVD is selected as the recording format, only SDTV can be selected as the camera mode. On the other hand, when AVCHD is selected, only HDTV can be selected as the camera mode. Thus, when the recording format of the optical disk 111 is determined, the camera mode is determined.

(First embodiment)
When the file format of the mounted initialized disc is different from the file format of the imaging device, the processing procedure until the imaging device is switched to the disk file format and transitioned to a recordable state will be described with reference to FIGS. explain.

  First, in step S301, it is determined whether or not the optical disk 111 is loaded. As a result of the determination, when the optical disk 111 is loaded, the process proceeds to step S302, where the disk type information of the loaded optical disk 111 is acquired from the disk information input from the recording medium detection circuit 120, and then the process proceeds to step S303. . The disk type information is information including a file format and a disk format type. If the mounted optical disk 111 has been formatted, a predetermined value is obtained.

  In step S303, it is determined whether the loaded optical disk 111 has been initialized. This determination is made based on the disk type information acquired in step S302. If the result of this determination is that the disk has not been initialized (blank disk), it is not the target of this process, and the process ends. If the result of determination in step S303 is initialization, the process proceeds to step S304.

  In step S304, a difference between the file format obtained from the disc type information and the file format in which the imaging apparatus is operating is determined. If it is determined that the file formats are different, the process proceeds to step S305. If these file formats match as a result of the determination in step S304, the process ends.

  The file format discriminated here indicates a file system of UDF2.0 and UDF2.5. When the file format of the optical disc 111 is UDF2.0 (DVD standard) and the imaging device is UDF2.5 (AVCHD), or the file format of the disc is UDF2.5 (AVCHD) and the imaging device is UDF2.0 (DVD) The case is shown.

  In step S305, the imaging operation of the main body is switched to the file format of the optical disc 111, so that additional writing can be performed on the initialized disc. FIG. 6A shows an example of the display screen when the determination result of step S304 is “YES” and when the process of S305 is executed. On this screen, the user is informed that the file format of the imaging device is to be switched according to the file format of the disc.

(Second Embodiment)
When the file format of the loaded initialized disc is different from the file format of the image pickup apparatus, the processing procedure until the Eject request for the loaded disc is completed and the ejection is completed will be described with reference to FIGS.

  First, in step S401, it is determined whether or not the optical disk 111 is loaded. As a result of the determination, when the optical disk 111 is loaded, the process proceeds to step S402, where the disk type information of the loaded optical disk 111 is acquired from the disk information input from the recording medium detection circuit 120, and then the process proceeds to step S403. . Here, the disk type information is information including a file format and a disk format type. If the mounted optical disk 111 has been formatted, a predetermined value is obtained.

  In step S403, it is determined whether the loaded optical disk 111 has been initialized. This determination is made based on the disk type information acquired in step S402. If the result of this determination is that the disk has not been initialized (blank disk), it is not the target of this process, and the process ends. If the result of determination in step S403 is initialization, the process proceeds to step S404.

  In step S404, the file format obtained from the disc type information and the file format in which the imaging apparatus is operating are discriminated. If the file format is different, the process proceeds to step S405. The file format discriminated here indicates a file system of UDF2.0 and UDF2.5. The case where the disk file format is UDF2.0 (DVD standard) and the imaging device is UDF2.5 (AVCHD), or the disk file format is UDF2.5 (AVCHD) and the imaging device is UDF2.0 (DVD) is shown. .

  In step S405, since the attached optical disk cannot be additionally written in the file format in which the image pickup apparatus is operating, the optical disk eject process is executed. The display screen in steps S404 and S405 is shown in FIG. On this screen, the user is prompted to mount an optical disk that matches the file format of the imaging apparatus.

(Third embodiment)
The third embodiment is a case where the file format of a mounted disc that can be re-initialized and already initialized is different from the format held by the imaging apparatus. In such a case, the mounted disk is reinitialized, and recording is started in a format held by the imaging device. A processing procedure in the third embodiment will be described with reference to FIGS.

  First, in step S501, it is determined whether or not the optical disk 111 is loaded. As a result of the determination, when the optical disk 111 is loaded, the process proceeds to step S502, where the disk type information of the loaded optical disk 111 is acquired from the disk information input from the recording medium detection circuit 120, and then the process proceeds to step S503. . Here, the disk type information is information including a file format and a disk format type. If the mounted optical disk 111 has been formatted, a predetermined value is obtained.

  In step S503, it is determined whether the mounted optical disk 111 has been initialized. This determination is made based on the disk type information acquired in step S502. If the result of this determination is that the disk has not been initialized (blank disk), it is not the target of this process, and the process ends. If the result of determination in step S503 is that initialization has been completed, the process proceeds to step S504.

  In step S504, the file format obtained from the disc type information and the file format in which the imaging apparatus is operating are discriminated. If the file format is different, the process proceeds to step S505. The file format discriminated here indicates a file system of UDF2.0 and UDF2.5. The case where the disk file format is UDF2.0 (DVD standard) and the imaging device is UDF2.5 (AVCHD), or the disk file format is UDF2.5 (AVCHD) and the imaging device is UDF2.0 (DVD) is shown. .

  In step S505, the user is allowed to select whether to initialize the loaded optical disk 111. If the user selects re-initialization as a result of the selection, the process proceeds to step S506. In step S506, since the loaded optical disk is an optical disk that can be re-initialized, it is re-initialized to the file format of the imaging apparatus, and recording is shifted to operation.

  The display screen in steps S504 to S506 is shown in FIG. On this screen, the user is prompted to reinitialize the optical disk, and the transition is made so that recording can be performed in the file format in which the imaging apparatus is operating. A selection display item for causing the user to select whether or not to perform re-initialization on this screen is also added (401). If the selection is made not to re-initialize, the imaging device is not shifted to the recording operation, and the subsequent operation is left to the user's judgment (the user performs the file format of the main body by performing the eject). Etc.).

(Other embodiments according to the present invention)
Each unit constituting the imaging apparatus and each step of the imaging apparatus control method in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  Further, the present invention can be implemented as, for example, a system, apparatus, method, program, or recording medium. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowcharts shown in FIGS. 3 to 5) that realizes the functions of the above-described embodiments is directly or remotely supplied to the system or apparatus. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, and the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored on a recording medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

It is a block diagram explaining the structural example of the disc camcorder in embodiment of this invention. It is a figure which shows the combination of the recording format and camera mode in embodiment of this invention. It is a flowchart explaining the operation | movement procedure of 1st Embodiment. It is a flowchart explaining the operation | movement procedure of 2nd Embodiment. It is a flowchart explaining the operation | movement procedure of 3rd Embodiment. In an embodiment of the present invention, it is a figure explaining an example of contents displayed on LCD.

Explanation of symbols

101 Lens 102 CCD
103 video signal processing circuit 104 video display output circuit 105 video output terminal 106 LCD
107 switching circuit 108 first video signal compression circuit 109 second video signal compression circuit 110 recording circuit 111 optical disk 112 initialization request circuit 113 microcomputer 114 initialization selection circuit 115 first initialization circuit 116 second initialization Circuit 117 third initialization circuit 118 fourth initialization circuit 119 camera mode switching circuit 120 recording medium detection circuit 401 reinitialization selection display

Claims (16)

Generating means for generating a first video signal and a second video signal having a resolution lower than that of the first video signal;
A recording medium that can be initialized with a first recording format for recording the first video signal and a second recording format for recording the second video signal, the first recording format And a recording means for recording the first video signal or the second video signal output from the generating means on a recording medium initialized according to any of the second recording format,
The first video signal is output when the recording medium is initialized according to the first recording format, and the second video signal is output when the recording medium is initialized according to the second recording format. A recording apparatus comprising: control means for selecting a video signal output from the generating means based on a recording format of the recording medium so as to output a video signal.   The first video signal recorded on the recording medium in the first recording format is managed according to a first file system, and the second video signal recorded on the recording medium in the second recording format The recording apparatus according to claim 1, wherein the recording apparatus is managed according to a second file system.   The generating means generates the first video signal by compressing the input video signal according to the first system, and compresses the input video signal according to the second system to compress the second video. The recording apparatus according to claim 1, wherein the recording apparatus generates a signal. Selecting means for selecting either the first video signal or the second video signal;
If the recording medium has been initialized according to the second recording format, the control means may be configured so that, even if the first video signal is selected by the selection means, the generation means 2. The recording apparatus according to claim 1, wherein the video signal output by the generation unit is selected so as to output the second video signal.   The recording apparatus according to claim 1, wherein the generation unit generates the second video signal by down-converting the first video signal. Generating means for generating an HD video signal and an SD video signal;
A recording medium that can be initialized with a first recording format for recording the HD video signal and a second recording format for recording the SD video signal, the first recording format and Recording means for recording the HD video signal or the SD video signal output from the generating means on a recording medium initialized according to any of the second recording formats;
The HD video signal is output when the recording medium is initialized according to the first recording format, and the SD video signal is output when the recording medium is initialized according to the second recording format. And a control unit that selects a video signal output from the generation unit based on a recording format of the recording medium.   The HD video signal recorded on the recording medium in the first recording format is managed according to the first file system, and the SD video signal recorded on the recording medium in the second recording format is the first video system. The recording apparatus according to claim 6, wherein the recording apparatus is managed according to the file system of 2.   The generating means generates the HD video signal by compressing the input video signal in accordance with the first method, and compressing the input video signal in accordance with the second compression method to generate the SD video signal. 8. The recording apparatus according to claim 6, wherein a signal is generated. Selecting means for selecting either the HD video signal or the SD video signal;
In the case where the recording medium is initialized according to the second recording format, the control means is configured so that, even if the HD video signal is selected by the selection means, the generation means 7. The recording apparatus according to claim 6, wherein the video signal output by the generating unit is selected so that an SD video signal is output.   7. The recording apparatus according to claim 6, wherein the generation unit generates the SD video signal by down-converting the HD video signal.   8. The recording apparatus according to claim 2, wherein the first file system is UDF2.5, and the second file system is UDF2.0.   9. The recording apparatus according to claim 3, wherein the first system is an MPEG4 AVC system, and the second system is an MPEG2 system. Generating a first video signal and a second video signal having a resolution lower than that of the first video signal;
A recording medium that can be initialized with a first recording format for recording the first video signal and a second recording format for recording the second video signal, the first recording format And a recording step of recording the first video signal or the second video signal output from the generation step on a recording medium initialized according to any of the second recording format,
The first video signal is output when the recording medium is initialized according to the first recording format, and the second video signal is output when the recording medium is initialized according to the second recording format. And a control step of selecting a video signal output by the generation step based on a recording format of the recording medium so as to output a video signal. A generation step of generating an HD video signal and an SD video signal;
A recording medium that can be initialized with a first recording format for recording the HD video signal and a second recording format for recording the SD video signal, the first recording format and A recording step of recording the HD video signal or the SD video signal output from the generation step on a recording medium initialized according to any of the second recording formats;
The HD video signal is output when the recording medium is initialized according to the first recording format, and the SD video signal is output when the recording medium is initialized according to the second recording format. And a control step of selecting a video signal output from the generation step based on a recording format of the recording medium.   A computer-readable storage medium storing a program for causing a computer to function as each means constituting the recording apparatus according to claim 1.   A computer-readable storage medium storing a program for causing a computer to function as each means constituting the recording apparatus according to claim 6.

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