JP2004118986A - Information recording device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording device and a method in which format conversion at the time of copy is omitted and a copy time is shortened by selecting an appropriate kind of recording data out of a plurality of kinds of recording data and recording the data when recording data is copied to the other recording medium. <P>SOLUTION: An AV encoding part 22 encodes simultaneously video signals supplied from the outside with a plurality of kinds of video recording systems, and encoded recording data of a plurality of kinds of video recording systems are recorded respectively in an HDD part 70. At the time of copy, kinds of recording media 30, 19a of copy destination are checked, recording data of an appropriate data format is recorded in the recoding media 30, 19a of copy destination out of recording data recorded in the HDD part 70. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an information recording apparatus and method for recording video information supplied from the outside onto a recording medium such as an optical disk.
[0002]
[Prior art]
In recent years, the DVD standard that uses the internationally standardized MPEG2 system and adopts the AC3 audio compression system and records / reproduces data such as video and audio on an optical disk has become widespread.
[0003]
This standard supports the MPEG2 system as a moving image compression system, supports the AC3 audio compression system and the MPEG audio compression system as an audio compression system according to the MPEG2 system layer, and further executes run-length compression of bitmap data for subtitles. It is configured by adding control data (navi pack) for special playback such as data and fast forward / rewind.
[0004]
As a standard of the medium itself, following a DVD-ROM which is a medium used in DVD-Video, a DVD-RAM standard has been completed, and a DVD-RAM drive has been widely used as a computer peripheral device. Furthermore, the RTR-DVD (Real Time Recorder-DVD) standard, which is a DVD-Video standard capable of real-time recording and reproduction using the DVD-RAM, has been completed. Devices using this standard have become widespread as recording and reproducing TV broadcasts and the like, replacing the current VTR.
[0005]
At present, as digital data recorded by TV including these standards, DVD-Video standard, DVD-RTR standard, Video-CD standard, and D-VHS used for storage of digital broadcasting and the like are stored. Various systems, such as those based on transport streams, are expected to be abundant.
[0006]
Therefore, a method has been considered in which recording data of different DVD standards are collectively recorded in a magnetic disk device, and different DVD standards are integrated and reproduced at the time of reproduction (for example, see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-2002-94942 (pages 12 to 18, FIG. 11)
[0008]
[Problems to be solved by the invention]
However, Patent Document 1 does not consider speeding up when recording data is copied from a magnetic disk device to an optical disk medium, and when copying between recording data of different DVD standards, the copy source is The recording data must be converted into a data format of a compression method corresponding to the recording medium of the copy destination, and there has been a problem that it takes a lot of time to copy the recording data.
[0009]
SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an information recording apparatus and a method for shortening the processing time when recording data is copied and facilitating the transfer of the recording data between recording media.
[0010]
[Means for Solving the Problems]
The information recording apparatus and method of the present invention simultaneously encode a video signal supplied from the outside using a plurality of types of recording methods, and record the encoded recording data of the plurality of types of recording methods on a recording medium.
[0011]
According to the present invention, when recording data is copied to another recording medium, by selecting and recording an appropriate type of recording data from a plurality of types of recording data, format conversion at the time of copying is omitted, and copy time is reduced. It becomes possible to shorten it.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a DVD recorder as an information recording device according to an embodiment of the present invention.
The DVD recorder 1 encodes, ie, MPEG-compresses, based on the MPEG1 or MPEG2 standard, a main processor unit (hereinafter, referred to as an MPU) 10 that controls the whole of the recorder apparatus 1 and content information such as input video / audio. An encoder unit 20 for generating recording data having a file structure based on the DVD standard; and an optical disk 30 such as a DVD-RAM disk, a DVD-R disk, and a CD-R, which can be repeatedly written / read and detachable from the recorder device 1. A disk drive unit 40 for writing recording data to the optical disk 30 and reading recorded data from the optical disk 30, a decoder unit 50 for decoding data recorded on the optical disk 30, and a disk drive unit 40 for recording data from the encoder unit 20. Supply to the disk drive A data processor unit 60 for supplying recording data read from the disk unit 40 to a decoder unit 50, and a magnetic disk for temporarily storing data recorded via the disk drive unit 40 or recording data read from the disk drive unit 40 , A magnetic disk drive (hereinafter referred to as HDD) unit 70 having
[0013]
The MPU unit 10 creates a ROM unit 11 in which a control program for controlling the recorder device 1 is stored, a RAM unit 12 that provides a work area necessary for executing the program, and creates management information of recording data recorded on the optical disk 30. And a type discriminator 14 for discriminating the type of optical disc 30 (DVD-RAM / DVD-R / CD-R / CD-RW) or the type of removable card (IC memory card / HDD card) 19a. And a format determination unit 15 that determines a data format of a compression method corresponding to the type of the optical disc 30 or the removable card 19a determined by the type determination unit 14.
[0014]
Further, the MPU unit 10 receives operation request data from a button provided on a control panel of the recorder device 1 or a key input unit 17 composed of a remote control device. Further, the MPU unit 10 displays status information on a display unit 18 including an indicator panel provided on a control panel of the recorder device 1.
[0015]
Further, the MPU unit 10 records data on a removable card 19a such as an IC memory card or an HDD card via the interface (I / F) unit 19, and reads data from the removable card 19a.
[0016]
The encoder unit 20 is converted by an A / D converter 21 and an A / D converter 21 for converting an analog audio / video signal input from an AV input unit 91 or a television (TV) tuner unit 92 into a digital audio / video signal. The digital video signal is converted into a digital signal compressed at a variable bit rate based on the MPEG1 or MPEG2 standard, and the digital audio signal converted by the A / D converter 21 is converted at a fixed bit rate based on the MPEG standard or the AC-3 standard. An AV encoding unit 22 that converts the digital signal into a compressed digital signal, a buffer memory 23 used as a work memory, and recording data (MPEG stream) that matches a digital signal sent from the AV encoding unit 22 with a file structure based on the DVD standard. Shide Having a formatter unit 24 to be output to the data processor unit 60. The encoder unit 20 also encodes sub-picture information such as subtitles superimposed on the video information, and outputs it to the data processor unit 60. When a digital audio / video signal is input from the AV input unit 91 or the television (TV) tuner unit 92, the input to the A / D converter 21 is passed through, and the digital audio / video signal is directly input to the AV encoding unit. 21.
[0017]
The decoder unit 50 converts the audio data portion, the video data portion, and the sub-picture information portion from the MPEG-compressed recording data conforming to the file structure of the DVD standard read from the optical disc 30 via the disc drive unit 40 and the data processor unit 60. The separator unit 51 to be separated, the memory 52 used as a work memory when the separator unit 51 performs the separation process, and the audio data portion, the video data portion, and the sub-picture information portion separated by the separator unit 51 are decoded (restored). An AV decoding unit 53 includes a video processor unit 54 that superimposes and outputs decoded video data and sub-picture information.
[0018]
The video data output from the video processor unit 54 is output to the monitor unit 82 via the video mixing unit 80 and the D / A converter 81. The audio data decoded by the AV decoding unit 53 is output to a speaker unit 84 via a D / A converter 83.
[0019]
The timing at which the MPU unit 10 controls the encoder unit 20, the decoder unit 50, the disk drive unit 40, the data processor unit 60, and the like is based on time data from a system time counter (hereinafter, referred to as STC) unit 93.
[0020]
Here, the directory structure of the recording data according to the present embodiment will be described.
FIG. 2 shows a directory structure of recording data recorded according to the DVD-RTR standard and the DVD-Video standard, and a copy management file in which copy management information created by a management information creation unit is recorded.
[0021]
DVDs have directories for each standard, and these directory names are "VIDEO_TS" for DVD-Video and "DVD_RTR" for DVD-RTR. Recorded data recorded in the data format of each standard exists in this directory.
[0022]
Recorded data in a DVD is stored in a file format. The title corresponds to, for example, one movie, and one optical disc includes a plurality of titles. A collection of these titles is called a title set, and this title set is composed of a plurality of files.
[0023]
In the DVD-Video directory “VIDEO-TS”, a VMGI file (VMG.IFO) storing video manager information (VMGI) for managing recording data recorded in the DVD-Video data format, A video title set information file (VTS.IFO) storing video title set information (VTSI) for managing a title set (VTS), a video object file (VTS.VOB) storing video data, and a VMGI Backup file (VMG.BUP) exists.
[0024]
In the DVD-RTR, VMGI and VTSI are combined to form a VMG, and a video data file is managed. The directory “DVD_RTR” contains a VMG file (RTR.IFO), a movie video file (RTR_MOV.VRO), a still picture video file (RTR_STA.VRO), a still picture audio file (RTR_STA.VRO), and a back file of the VMG file. (RTR.BUP) exists.
[0025]
RTR. Navigation data is recorded in the IFO. The navigation data is data for advancing a program set, a program, an entry point, a play list, and the like. RTR_MOV. A movie video object is recorded in VRO. RTR_STO. Still picture video objects are recorded in VRO. RTR_STA. The VRO records an additional audio stream for the still picture.
[0026]
FIG. 3 shows a file structure of “VTS.VOB” in DVD-Video, and FIG. 4 shows a file structure of “RTR_MOV.VRO” in DVD-RTR.
[0027]
Video files are managed in a hierarchical structure, and one video object set (VOBS) is composed of a plurality of video objects (VOB). One VOB is composed of a plurality of video object units (VOBU). This VOBU is constituted by a pack composed of a plurality of various types of data. One pack is composed of one or more packets and a pack header, and each video data and audio data is recorded in this packet. The NV pack and the RDI pack are packs in which management information is recorded. The V pack is obtained by compressing video data according to the MPEG2 system. The A-pack is obtained by processing audio data using a method such as AC3, linear PCM, or MPEG.
[0028]
A pack is a minimum unit for performing data transfer processing. Further, the minimum unit for performing logical processing is a cell unit, and the logical processing is performed in this unit. The order in which data is reproduced is defined by a program chain (PGC), and a plurality of programs (PG) are registered in the PGC, and cells are registered in the PG. In this cell, the number of the VOB to be reproduced and the reproduction time within the VOB are registered, and the VOB is reproduced according to the reproduction information of the cell.
[0029]
The PGCI actually records the structure of the PGC. The reproduction process is performed according to the PGCI, and the PGCI is created at the time of recording or editing.
In the DVD-RTR, a special PGC for reproducing in the recording order (reproduction processing such as a VTR) is called an original PGC, and information of the original PGC is recorded in ORG_PGCI. A PGC created by editing or the like is called a user-defined PGC, and information of the user-defined PGC is recorded in UD_PGCI. From the above, there is one ORG_PGC per disk, and there are a plurality of UD_PGCs.
[0030]
In the computer industry, Motion JPEG (electronic camera system), MPEG4, Media Player format, and the like are generally used as moving image files. As a moving image file on a CD-R, VIDEO-CD (MPEG1) is typical. As described above, various formats have become widespread depending on the industry, the intended use, and the like, even for a moving image file, and there are cases where the file cannot be processed without data conversion when used.
[0031]
FIG. 5 is a block diagram showing a detailed structure of the A / D converter 21 and the AV encoder 22 of FIG.
The A / D converter 21 is a video A / D converter 21a for A / D converting a video signal among video signals sent from the AV input unit 91 or the TV tuner 92, and A / D converting an audio signal among the video signals. And an audio A / D converter 21b. The AV encoding unit 22 includes video encoding units 501 and 503, audio encoding units 505 and 507, video RAMs 509 used in the video encoding unit 501, and a video RAM 511 used in the video encoding unit 503 for the compression formats that can be simultaneously recorded. ing.
[0032]
Here, the flow of recording data of the DVD recorder 1 of FIG. 1 will be briefly described.
A video signal input from outside via the AV input unit 91 or the TV tuner 92 is digitally converted by the A / D converter 21. This digital signal is input to the AV encoder unit 22. The AV encoder 22 compresses the video signal by MPEG, compresses the audio signal by AC3 or MPEG audio, and compresses the character data by run-length compression. The AV encoder 22 packetizes the compressed data so that one pack has 2048 bytes, and outputs the packet to the formatter 24. The formatter unit 24 packs and multiplexes each packet and outputs it to the data processor unit 60 as recording data. The data processor unit 60 forms an ECC block for every 16 packs, attaches error correction data to the ECC block, outputs the error correction data to the optical disk via the HDD unit 70 or the disk drive unit 40, and records the recording data.
[0033]
Next, a description will be given, with reference to FIGS. 5 and 6, of simultaneous encoding processing in a plurality of types of recording systems according to the present embodiment. FIG. 6 is a flowchart for explaining simultaneous encoding processing in a plurality of types of recording methods.
[0034]
At the start of recording, the MPU unit 10 of the recorder device 1 performs an initial setting of the encoding unit 20 (Step S601). In the initial setting, the video encoding unit 501 and the audio encoding unit 505 are set, for example, for DVD-RTR, and the video encoding unit 503 and the audio encoding unit 507 are set, for example, for DVD-Video. When recording is started, the MPU unit 10 sets a recording start command in the encoding unit 20 (step S603). When a recording start command is set in the encoding unit 20, the video encoding unit 501 converts the video signal input from the A / D converter 21a into a data format for DVD-RTR using the VRAM 509, and simultaneously encodes the audio encoding unit 505. Converts the audio signal input from the A / D converter 21b into a data format for DVD-RTR (step S605). At the same time, the video encoding unit 503 converts the video signal input from the A / D converter 21a to a data format for DVD-Video using the VRAM 511, and the audio encoding unit 507 is input from the A / D converter 21b. The audio signal is converted into a DVD-Video data format (step S607). Steps S605 and S607 are performed in parallel by dividing the processing for each task. The data converted by each encoding unit is sent to the formatter unit 24, and is recorded on the HDD unit 70 via the data processor unit 60 (step S609).
[0035]
The MPU unit 10 determines whether or not the user has instructed the end of the recording via the key input unit 17 (step S611). When the MPU unit 10 determines that the end of the recording has been instructed, the MPU unit 10 performs a recording end process (step S613). In the recording end process, the MPU unit 10 creates a VMGI of each recording data from the information of the AV encoding unit 22, and stores each VMGI in the HDD unit 70. Next, the management information creation unit 13 of the MPU unit 10 creates a directory called COPY_DATA, and in this directory, PGC numbers, PG numbers, cell numbers, recorded video file names, The recording time and the like are stored (step S615). The encoding methods considered here are MPEG1, MPEG2, MPEG4, motion JPEG, and the like.
[0036]
Here, the configuration of the directory “COPY_DATA” will be described. FIG. 7 is a diagram showing the structure of the directory “COPY_DATA”.
In the DVD recorder 1, recording data is always recorded in a DVD-RTR data format, and management information is defined in a table shown in FIG. 7 for each PGC program (PG) as the recording data. In the PG number area 701, a program number corresponding to the program number of the recording data recorded in the DVD-RTR data format is recorded. The number-of-standard-types area 703 records the number of pieces of recording data simultaneously encoded in addition to the DVD-RTR. When a video signal is recorded on a DVD-Video together with a DVD-RTR, information indicating "one" is recorded. When a video signal is recorded on a DVD-Video and a VIDEO-CD together with a DVD-RTR, information "2" is recorded. Is recorded. In the standard name area 705, information indicating the type of standard corresponding to the simultaneously encoded recording data is recorded. For example, “01” is recorded for DVD-Video, “02” is recorded for VIDEO-CD, “03” is recorded for Motion-JPEG, and “04” is recorded for MPEG4. When the type of standard is DVD-Video, a PGC number area 707 in which information indicating a PGC number in DVD-Video is stored next to the standard name area 705a, and information indicating a PG number in DVD-Video are stored. A PG number area 709 is defined, and position information of the recording data recorded in the DVD-Video data format corresponding to the recording data specified in the PG number area 701 is recorded. In the case of another standard, a file name area 711 in which a file name storing recording data is recorded is defined next to the standard name area 705b.
[0037]
Next, an operation at the time of copying a title which is recording data recorded in the HDD unit 70 will be described with reference to FIG. FIG. 8 is a flowchart for explaining the process at the time of copying the recording data.
[0038]
First, a user selects a title, which is recording data to be copied, from recording data recorded on the DVD-RTR recorded on the HDD unit (step S801). When a title is selected, the type determination unit 14 of the MPU unit 10 checks the type of the copy destination recording medium (step S803). When the type determination unit 14 checks the type of the copy destination recording medium, the format determination unit 15 of the MPU unit 10 determines the type of the recording data according to the check result (step S805).
[0039]
Here, the format determination unit 15 determines the type of recording data when the copy destination recording medium is a DVD-RAM or DVD-RW, and determines the type of recording data when the copy destination recording medium is a DVD-R. If the recording medium of the DVD-Video or the copy destination is a CD-R, the type of the recording data is determined to be VIDEO-CD, and if the recording medium of the copy destination is a memory card, it is determined to be Motion JPEG or Media Player.
[0040]
Next, the MPU unit 10 confirms whether or not there is a change to the user (step S807), and changes the data type when instructed that the change is necessary (step S809).
When the type of the recording data is set, the MPU unit 10 checks the file system of the recording medium of the copy destination (step S811) and checks whether there is an error in the file system (step S812). The message is displayed on the display unit 18 or the monitor unit 82 (step S813).
[0041]
Next, the MPU unit 10 reads the COPY_DATA file recorded in the HDD unit 70 (Step S815). The copy data specifying unit 16 of the MPU unit 10 extracts the information of the title of the copy source from the COPY_DATA file, checks the record data to be copied, and checks whether there is record data of the target type (attribute) (step S817). The copy data specifying unit 16 of the MPU unit 10 determines whether there is recording data (step S818), and if it determines that there is recording data of the target attribute, copies the recording data to a copy destination disk or IC card (step S818). Step S819). If there is no record data of the target attribute, the MPU unit 10 displays an error message on the display unit 18 or the monitor unit 82 (Step S821). After the copy of the recording data is completed, the MPU unit 10 checks whether the recording data is based on the DVD standard (step S823). When the recording data is based on the DVD standard, the MPU unit 10 creates a management file of the copy destination based on the management information (VMGI or VTSI) of the recording data of the copy source and saves the file on the recording medium of the copy destination ( Step S825).
[0042]
If a COPY_DATA file has not been created, the recording time is checked, and a file having the same recording start time is considered to be the same title.
Furthermore, when copying a title, a method of copying data while converting the data instead of preparing a data file for copying in advance is also conceivable. FIG. 9 is a flowchart for explaining a process when copying is performed while converting data. Note that the same steps as those in FIG. In FIG. 9, in step S901, the recording data is copied to a copy destination recording medium while reading the recording data in the DVD-RTR format and converting the data into a target type of data format.
[0043]
Further, the AV encoder 22 may have a configuration shown in FIG. 10 other than the configuration shown in FIG. FIG. 10 is a block diagram illustrating another embodiment of the AV encoding unit 22. In FIG. 10, the AV encoding unit 22 includes frame memories 101, 103, 105, and 107 for the number of compression formats that can be simultaneously recorded, and a set of a video encoding unit 109 and an audio encoding unit 111. The AV encoding unit 22 of FIG. 9 performs encoding by a fixed amount (one frame or one GOP), switches the format, and performs the encoding process. In this method, the work memories 1 and 2 are provided in the VRAM 611 for each format, and the work memory to be used is switched every time the encode processing is switched, so that the encode processing can be performed in a time-division manner. In this method, the encoding process is complicated, but the circuit scale is relatively small.
[0044]
【The invention's effect】
According to the present invention, when recording data is copied to another recording medium, an appropriate type of recording data is selected and recorded from a plurality of types of recording data, so that format conversion at the time of copying is omitted and copying is performed. The time can be shortened.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a DVD recorder as a video recording device according to an embodiment. FIG. 2 is a diagram showing a directory structure of recording data recorded in a DVD-RTR standard and a DVD-Video standard. FIG. 4 is a diagram showing a file structure of “VTS.VOB” in DVD-Video. FIG. 4 is a diagram showing a file structure of “RTR_MOV.VRO” in DVD-RTR. FIG. 5 is an A / D converter 21 and an AV encoder 22. FIG. 6 is a flowchart illustrating simultaneous encoding processing in a plurality of types of recording systems. FIG. 7 is a diagram illustrating a configuration of a directory “COPY_DATA”. FIG. 8 is a diagram illustrating processing when recording data is copied. FIG. 9 is a flowchart for explaining processing when copying is performed while converting data. DOO 10 is a block diagram illustrating another embodiment of the AV encoding unit 22 EXPLANATION OF REFERENCE NUMERALS
Reference Signs List 10 MPU section 13 Management information creating section 14 Type determining section 15 Format determining section 16 Copy data specifying section 20 Encoding section 21 A / D converter 22 AV encoding sections 501, 503 Video encoding sections 505, 507 Audio encoding sections

Claims (10)

In an information recording device that records a video signal on a recording medium,
An encoder section for simultaneously encoding a video signal supplied from the outside in a plurality of types of recording methods,
A recording unit for recording, on the recording medium, recording data of a plurality of types of recording systems encoded by the encoder unit. In an information recording device that records a video signal on a recording medium,
An encoder section for simultaneously encoding a video signal supplied from the outside in a plurality of types of recording methods,
A recording unit that records, on the recording medium, recording data of a plurality of types of recording systems encoded by the encoder unit,
An information recording apparatus, comprising: a management information creating unit that creates management information of each type of recording data recorded on the recording medium by the recording unit. In an information recording device that records a video signal on a recording medium,
An encoder section for simultaneously encoding a video signal supplied from the outside in a plurality of types of recording methods,
A recording unit that records recording data of a plurality of types of recording systems encoded by the encoder unit on a first recording medium,
A management information creation unit that creates management information for each type of recording data recorded on the first recording medium by the recording unit;
A type determining unit that determines a type of a second recording medium to which the recording data recorded on the first recording medium is copied;
A format determining unit that determines a data format of a compression method corresponding to the type of the second recording medium determined by the type determining unit;
The recording data to be copied to the second recording medium from the plurality of recording data recorded on the first recording medium according to the determination result of the format determination unit and the management information created by the management information creation unit. An information recording device, comprising: a copy data specifying unit for specifying. The management information includes recording start time information, and the copy data specifying unit specifies recording data to be copied to the second recording medium from a plurality of types of recording data having the same recording start time information. The information recording device according to claim 3. The format judging section sets the data format of the compression method corresponding to the second recording medium to a DVD-RAM disc when the type of the second recording medium is judged to be a DVD-RAM disc according to the judgment result of the type judging section. RTR format or MPEG4, DVD-Video when judged as DVD-R disc, Video-CD or motion JPEG when judged as CD-R, Motion JPEG or MPEG4 when judged as IC card or removable HDD The information recording apparatus according to claim 3, wherein the information recording apparatus is determined. In an information recording device that records a video signal on a recording medium,
A type determination unit that determines the type of the recording medium,
A format determination unit that determines a data format of a compression method corresponding to the type of the recording medium determined by the type determination unit;
An information recording apparatus, comprising: a data conversion unit that converts a video signal into a predetermined data format based on a result determined by the format determination unit. In an information recording method for recording a video signal on a recording medium,
An information recording method, wherein video signals supplied from the outside are simultaneously encoded by a plurality of recording methods, and the encoded recording data of the plurality of recording methods are respectively recorded on the recording medium. In an information recording method for recording a video signal on a recording medium,
A video signal supplied from the outside is simultaneously encoded in a plurality of types of recording methods, and the encoded recording data of the plurality of types of recording methods are respectively recorded on the recording medium, and the respective types of recording data recorded on the recording medium are recorded. An information recording method, characterized by creating management information of the information. In an information recording method for recording a video signal on a recording medium,
A video signal supplied from the outside is simultaneously encoded by a plurality of types of recording methods, and the encoded recording data of the plurality of types of recording methods are respectively recorded on a first recording medium, and are recorded on the first recording medium. The management information of each type of recording data is created, the type of the second recording medium to which the recording data recorded on the first recording medium is copied is determined, and the type of the determined second recording medium is determined. A data format of a corresponding compression method is determined, and recording data to be copied to the second recording medium is specified from a plurality of recording data recorded on the first recording medium according to the determination result and the management information. An information recording method, comprising: In an information recording method for recording a video signal on a recording medium,
Determining a type of the recording medium, determining a data format of a compression method corresponding to the determined type of the recording medium, and converting a video signal into a predetermined data format based on the determination result. Recording method.

Images