JP4302304B2 - Information recording medium recording method and information recording apparatus - Google Patents

Information recording medium recording method and information recording apparatus Download PDF

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Publication number
JP4302304B2
JP4302304B2 JP2000273917A JP2000273917A JP4302304B2 JP 4302304 B2 JP4302304 B2 JP 4302304B2 JP 2000273917 A JP2000273917 A JP 2000273917A JP 2000273917 A JP2000273917 A JP 2000273917A JP 4302304 B2 JP4302304 B2 JP 4302304B2
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Japan
Prior art keywords
recording
information
data
area
recorded
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JP2001148166A (en
Inventor
正己 大石
克己 川村
健志 幸田
英宏 石井
二郎 遠藤
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パイオニア株式会社
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Priority to JP25695999 priority
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for recording or reproducing information using an information recording medium capable of recording or reproducing information, and an information recording / reproducing apparatus using the method.
[0002]
[Prior art]
As is well known, VTR (Video Tape Recorder) has been widely used as an information recording / reproducing apparatus capable of recording and reproducing information.
[0003]
Since the VTR records or reproduces information using a magnetic tape as an information recording medium, there is a problem that random access and interactive editing cannot be easily performed.
[0004]
For example, if new information is to be recorded in the remaining unrecorded area of a magnetic tape on which some information has already been recorded, the end position of the area where information is already recorded and the start position of the unrecorded area are set. There is a problem that it takes time to perform a pre-operation before recording new information because it must be found while monitoring.
[0005]
Further, even if new information is recorded in a plurality of empty areas of a magnetic tape in which a plurality of information is recorded in a skipped manner, it is not always easy to effectively record these empty areas.
[0006]
In recent years, disk-type information recording media such as CD (Compact Disc) and DVD (Digital Video Disc or Digital Versatile Disc) have been developed as information recording media that can solve such problems of VTR.
[0007]
In these information recording media, a recording area for recording desired data (hereinafter referred to as a data recording area) and a management area for recording recording management data are provided based on a predetermined standard.
[0008]
Also, various types of disc-type information recording media have been developed one after another, coupled with rapid technological development. For example, following a read-only DVD-ROM, a DVD-R capable of additional recording has been developed, and an RVD-RW and the like capable of rewriting the recorded contents have been developed.
[0009]
Here, each time a new type of information recording medium is developed, a different original recording / reproducing format is adopted, so that the information recording medium that the user has previously stored is the same as the newly developed information recording medium. It becomes impossible to handle, and the path of effective use of information resources is closed. Therefore, recording management data for enabling common reproduction is recorded in the management area even when information recording media of different types are used.
[0010]
For example, in the above-described DVD capable of recording and reproduction, the management area includes an R-information area, a lead-in area, and a border-out / lead-out area (Border-out / Lead). -out Area, hereinafter collectively referred to as a lead-out area), and the R-information area is composed of a power calibration area and a recording management area. By making the contents of the in-area and the lead-out area equal to those of the reproduction-only DVD-ROM, reproduction compatibility is ensured.
[0011]
Each time a process involving recording such as recording new data in the data recording area or editing the data recorded in the data recording area is performed, predetermined recording management data is re-stored in these management areas. The recording state is managed by writing.
[0012]
[Problems to be solved by the invention]
By the way, the DVD that can be recorded and reproduced as described above as one conventional example is attracting attention as a next-generation information recording medium that enables random access and excellent interactive editing, but still has problems to be solved. ing.
[0013]
Although the above VTR uses magnetic tape, it has difficulty in operability for random access and interactive editing. However, the user intuitively understands the recording start point and recording end point for recording data. There is also a surface that is easy to do but is simple at first glance, but excellent in basic operability.
[0014]
For example, when a user records a television broadcast, the recording start position of the magnetic tape is set in advance, and the recording starts from the above recording start position by simply pressing the recording start button when the desired screen is displayed. It has the advantage of being able to understand intuitively. In addition, there is an advantage that it is possible to intuitively understand that the recording is completed by simply pressing the recording stop button when the desired screen is completed.
[0015]
On the other hand, in the above recordable and reproducible DVD, it is necessary to manage the data recorded in the data recording area based on the recording management data. For example, at the start of recording on an unrecorded disc, When the user instructs recording start (recording start) or recording end (recording end), the recording management data is rewritten (updated) in all areas in the management area. In addition, for a recorded disc, a predetermined area is rewritten (updated) in a part of the lead-in area, a part of the RMD, and the lead-out area.
[0016]
For this reason, a delay time for rewriting the recording management data occurs, and there is a problem that the actual recording start process or the actual recording / recording end process is delayed by a considerable time from the time point instructed by the user.
[0017]
Incidentally, in the case of the above recordable and reproducible DVD, the delay time from when the recording start is instructed to when the actual recording is started is converted to 1 × speed, and when the recording end is instructed. Therefore, a considerable delay time of about 60 seconds to 120 seconds is required in terms of the delay time from the start of recording to the end of actual recording in terms of 1 × speed.
[0018]
Therefore, it may be difficult for the user to intuitively understand the point at which recording is actually started and ended, resulting in a result that the operability is not necessarily better than that of a VTR.
[0019]
For example, as schematically shown in FIG. 10A, when a user attempts to record from a desired screen while monitoring television broadcasting, a predetermined delay time (approximately 65 from the time point ts when the recording start instruction is given. Since the actual recording is not started until after the time tr when (second) elapses, there is a problem that the recording for the delay time (about 65 seconds) is not performed. In addition, as shown in FIG. 5B, when an instruction to end recording is given, it is not effective after a time tf when a predetermined delay time (about 60 seconds to 120 seconds) has passed since the time te of the instruction. Since the recording does not end, it is not possible to perform operations such as taking out the DVD from the information recording / reproducing apparatus or replacing it with a new DVD unless it is after the recording completion time tf of the recording management data. There has been a problem in that there are cases where the problem becomes worse.
[0020]
The present invention provides such a recording start. In the beginning It is an object of the present invention to provide an information recording / reproducing method and an information recording / reproducing apparatus using the same, which can significantly reduce the delay time and can realize, for example, improvement of operability for a user.
[0021]
[Means for Solving the Problems]
In order to achieve the above object, an information recording medium recording method and information recording apparatus according to the present invention provide information recording. When writing main data to be recorded in the data recording area The recording amount of the recording manager area and the lead-in area of the information recording medium is smaller than the recording management data determined in advance according to the standard format. Compliant with a simple format that includes at least the information required for recording and playback control. Record management data was recorded. In addition, the recording management data is recorded in the recording manager area and the lead-in area out of the data recording area, the recording manager area, the lead-in area, and the lead-out area determined in advance according to a standard format. . In the lead-out area, lead-out information for 32 ECC blocks is recorded.
[0022]
According to these recording / reproducing methods and information recording / reproducing apparatuses, when information recording is performed in conformity with the simple format, recording management data is recorded on the information recording medium, which is smaller than the standard format. And the recording end process is performed quickly.
[0023]
In addition, when finalizing processing is performed on an information recording medium on which information recording is performed according to the simple format, recording management data conforming to the standard format is re-recorded.
[0024]
According to these recording / reproducing methods and information recording / reproducing apparatuses, it is possible to set an information recording medium on which information has already been recorded in conformity with the simple format, in a form conforming to the standard format. In addition, when an information recording instruction is given, information within a delay time required until the actual recording of the information is temporarily held, and the held information is recorded from the actual recording start time. .
[0025]
According to this recording / reproducing method and information recording / reproducing apparatus, information within a delay time from when an information recording instruction is issued until information recording is actually started is temporarily stored. The recorded information is recorded from the start of actual recording. Thereby, information within the delay time can be recorded without being lost.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As an embodiment, an information recording / reproducing method for a DVD capable of recording and reproducing information and an information recording / reproducing apparatus using the method will be described.
[0027]
1 to 5 are explanatory diagrams schematically showing the data structure of a DVD (hereinafter referred to as a disc) applied to the present embodiment, and FIG. 6 is a block diagram showing the configuration of the information recording / reproducing apparatus according to the present embodiment. FIG.
[0028]
In FIG. 1, a groove and a land are spirally formed around the clamping area CA on the disc, and the wobble (Wobble) for defining a physical address is formed on the groove and the land. ) And Land Pre-pit.
[0029]
Based on the above wobble and land pre-pit information, the pickup of the information recording / reproducing apparatus is controlled to align with the wobble, so that information recording to the groove (data writing) and information reproduction from the groove (data reading) are performed. To be done.
[0030]
The groove in which the above-described data writing or data reading is performed includes an R-Information Area (RIA) and an Information Area (Information Area) from the radially inner side (clamping area CA side) to the radially outer side. IA) is assigned.
[0031]
The R-information area RIA includes a power calibration area (PCA) and a recording management area (RMA). The information area IA includes a lead-in area (LIA). It is composed of a data recordable area (DRA) and a lead-out area (LOA).
[0032]
Here, in the data recording area DRA, various content data such as audio data and video data (hereinafter referred to as main data) and file management information for managing the content data as files are recorded. In the recording management area RMA, the lead-in area LIA, and the lead-out area LOA, recording management data indicating the recording state of the main data recorded in the data recording area DRA is recorded.
[0033]
The power calibration area PCA is provided for adjusting the light amount of the pickup so that the data can be written in an appropriate operation state by performing test writing when the information recording / reproducing apparatus writes data.
[0034]
In the recording management area RMA, recording management data for managing the recording state of lead-in, lead-out, and DRA is recorded.
[0035]
In the lead-in area LIA, record management data indicating the physical information of the disc is recorded.
[0036]
The lead-out area LOA is provided at the end position of the main data recorded in the data recording area DRA. In the lead-out area LOA, lead-out information, for example, (00) h data is recorded. The recording start position of the lead-out area LOA changes according to the amount of main data.
[0037]
The area addresses of these areas PCA, RIA, LIA, DRA, and LOA and the data recording address are set according to the ECC block address that is physically determined based on the wobble and land pre-pit. Yes.
[0038]
FIG. 2 is an explanatory diagram showing the structure of one unit of the ECC block, which is composed of a data field, a PO field and a PI field added to the data field.
[0039]
The data field is composed of 16 data sectors, one data sector is composed of 12 columns (rows), and each column is composed of 172 bytes (bytes). In other words, the number of data in each column in the data field is set to 172 bytes, and a group of 12 columns is called a data sector. Accordingly, (172 bytes) × (12 columns) × (16 data sectors) = (172 bytes) × (192 columns) = 33024 bytes of data B0,0 to B191,171 can be recorded in the data field. Yes.
[0040]
The PO field is composed of 16 columns × 172 bytes, and outer-code parity data for performing data error correction in the vertical direction in the figure is recorded. That is, in the PO field, 16 columns of outer code parity data are recorded corresponding to 16 data sectors in the data field.
[0041]
The PI field is composed of 208 columns × 10 bytes, in which inner-code parity data for performing data error correction in the horizontal direction in the figure is recorded.
[0042]
Further, FIG. 3 is an explanatory diagram representatively showing the structure of one data sector among the 16 data sectors constituting the data field. In the figure, among 12 columns × 172 bytes, the first 4 bytes are ID data (Identification data), the next 2 bytes are IED data (ID Error Detection code data), and the next 6 bytes are CPR_MAI data. (Copyright Management Information data) is recorded, and EDC data (Error Detection code data) is recorded in the last 4 bytes.
[0043]
Original main data (Main data) is recorded in a 2048-byte portion from the next of the CPR_MAI data to the previous of the EDC data.
[0044]
Furthermore, a data unit of 13 columns × 182 bytes is formed by adding the outer code parity data for 1 column × 172 bytes shown in FIG. 2 and the inner code parity data for 13 columns × 10 bytes shown in FIG. Is called a recording sector.
[0045]
Then, the data of 182 bytes (172 + 10 bytes) positioned in each column in FIG. 2 is divided into two sets of 91 bytes, and the synchronous data SYNC is added to the head of the data of 91 bytes to perform 8/16 conversion. As a result, as shown in FIG. 4, a pair of synchronization frames (SYNC frames) is recorded on the disc as data having 13 columns.
[0046]
The 91-byte data before 8/16 conversion is 728 bits, but the 91-byte data is converted to 1456 bits by 8/16 conversion. This is called channel bits.
[0047]
In this way, one data sector is determined to be 2048 bytes, and one ECC block is determined to be 16 data sectors, and the area address of each area PCA, RIA, LIA, DRA, and LOA and the data recording address are expressed in units of this ECC block. The ECC block becomes an error correction unit block.
[0048]
As shown in FIG. 5, the power calibration area PCA is determined as an area from the ECC block address (01E80) h to (0203A) h. The recording management area RMA is determined as an area from the ECC block address (0203C) h to (022F8) h. The lead-in area LIA is determined as an area from the ECC block address (022FA) h to (02FFF) h. The data recording area DRA starts from an ECC block address (03000) h, and the lead-out area LOA is determined within a predetermined range from the rear end of the main data recorded in the data recording area DRA.
[0049]
Furthermore, the lead-in area LIA is assigned to a reference code recording area assigned to an area corresponding to 2 ECC blocks from the ECC block address (02F00) h and an area corresponding to 192 ECC blocks from the ECC block address (02F20) h. A control data recording area is provided.
[0050]
Although details will be described later, when data is written to an unrecorded disc based on the standard format, recording management is performed in all areas (ranges) of the recording manager RMA and the lead-in area LIA shown in FIG. Data is recorded and updated. The lead-out area LOA is also recorded over a predetermined range. As for the recorded disc, a predetermined area is rewritten (updated) in a part of the lead-in area, a part of the RMD, and the lead-out area.
[0051]
On the other hand, when writing to an unrecorded disc based on the simple format, a minimum RMA, a minimum LIA, and a 32 ECC block lead-out are recorded. In addition, when data is written to a recorded disc, recording management data is not recorded (updated) in the lead-in area LIA, and recording management data in the recording manager area RMA and the lead-out area LOA as necessary. Is recorded (updated). Furthermore, the lead-out area LOA is set to 32 ECC blocks, and only the 32 ECC blocks are recorded. A little more explanation will be given regarding the above-mentioned minimum RMA and minimum LIA. In the RMA, recording status information indicating the recording status of the disc is recorded. For example, a recording mode such as incremental light, a laser power when information is recorded, a recording state of a program area, and the like are recorded. In the standard format, predetermined data such as 0 data is recorded in an area where such recording state information is not recorded. However, in the simple format, zero data or the like is not recorded, and only minimum RMA writing such as recording state information necessary for recording or reproduction control is performed. Also, in the LIA, disc information such as physical characteristics of the disc and data recording status is recorded. For example, a compliant recording format, a disk size, a disk layer structure, a data recording start position, and an end position are recorded. Further, in the standard format, predetermined data such as 0 data is added to the LIA in order to increase the design margin of the information reproducing apparatus. However, in the simple format, the additional data for the information reproducing apparatus is not recorded, and only minimum LIA writing such as disk information necessary for recording or reproducing control is performed.
[0052]
Also in the finalizing process, the recording management data is recorded in all areas of the recording manager RMA and the lead-in area LIA shown in FIG. 5 as in the case of the standard format. The lead-out area LOA is also recorded over a predetermined range.
[0053]
Next, the configuration of the information recording / reproducing apparatus 1 that performs recording and reproduction using a disc having such a data structure will be described. As an example, an information recording / reproducing apparatus 1 capable of recording / reproducing video information and audio information will be described.
[0054]
In FIG. 6, the information recording / reproducing apparatus 1 includes a spindle motor 3 that clamps and rotates a disk 2 that is an information recording medium at a predetermined linear velocity, and optically records (data writing) and reproduces data on the disk 2 ( A pickup 4 for reading data) and a servo circuit 5 for servo-controlling the spindle motor 3 and the pickup 4 are provided.
[0055]
Furthermore, a recording system 6 for generating data to be recorded on the disk 2, a reproducing system 7 for reproducing data recorded on the disk 2, and a central control circuit for controlling the entire information recording / reproducing apparatus 1 8, an operation unit 9 for a user to give a desired instruction to the central control circuit 8, a display unit 10, and a physical address detection circuit 25.
[0056]
Here, at least an operation button switch 9a for the user to give an instruction to start recording, an operation button switch 9b to give an instruction to end recording, and an operation to give an instruction to start playback. A button switch 9c, an operation button switch 9d for instructing the end of reproduction, and an operation button switch 9f for instructing a finalizing process described later are provided.
[0057]
The recording system 6 includes A / D converters 11 and 12, an audio compression circuit 13, a video compression circuit 14, a multiplex circuit 15, a recording buffer memory 16, an encoder 17, and a recording circuit 18. When the user operates the operation button switches 9a and 9b to instruct recording start and recording end, the recording system 6 ends from the start according to the control signals C1, C2, C3 and C4 from the central control circuit 8. In this period, video information and audio information supplied from the outside are recorded on the disc 2 together with the recording management data.
[0058]
Here, the A / D converter 11 converts an analog audio signal SAI supplied from the outside into digital audio data DAI and outputs it.
[0059]
The audio compression circuit 13 compresses the audio data DAI based on a predetermined compression method designated by the control signal C1 from the central control circuit 8, and the compressed audio data (hereinafter referred to as compressed audio data) DPAI. Is supplied to the multiplex circuit 15. In this embodiment, a data compression method compliant with linear PCM, AC-3, and MPEG audio is applied, and the user can arbitrarily specify these compression methods by operating the operation unit 9. It has become.
[0060]
The A / D converter 12 converts an analog video signal SVI supplied from the outside into digital video data DVI and outputs it.
[0061]
The video compression circuit 14 compresses the video data DVI in accordance with the MPEG2 video format (ISO 13818-2), and supplies the compressed video data (hereinafter referred to as compressed video data) DPVI to the multiplex circuit 15.
[0062]
The multiplex circuit 15 multiplexes the compressed audio data DPAI and the compressed video data DPVI in accordance with a predetermined timing specified by the control signal C2 from the central control circuit 8 to obtain compressed data DPW subjected to time division multiplexing. This is supplied to the recording buffer memory 16.
[0063]
The recording buffer memory 16 temporarily stores the compressed data DPW supplied from the multiplex circuit 15, performs timing adjustment, and sends it to the encoder 17 side.
[0064]
The encoder 17 encodes the compressed data DPW supplied from the multiplex circuit 15 according to the control signal C3 from the central control circuit 8, and outputs the encoded data DWE generated thereby to the recording circuit 18.
[0065]
The recording circuit 18 performs processing such as power amplification on the encoded data DWE in accordance with the control signal C 4 supplied from the central control circuit 8, and supplies the recording data DWT generated thereby to the pickup 4. Accordingly, a light source such as a semiconductor laser incorporated in the pickup 4 is driven by the recording data DWT, and the recording data DWT is optically recorded on the disk 2 by the recording light emitted from the light source.
[0066]
Here, the recording buffer memory 16 not only temporarily stores the compressed data DPW and sends it to the encoder 17 side, but also adjusts the timing of the recording management data DCW for recording on the disk 2 to adjust the encoder. It is sent to the 17 side.
[0067]
That is, when the user operates the operation button switch 9a to instruct the start of recording, the central control circuit 8 accordingly records the video signal SVI and the audio signal SAI for the recording system 6 immediately after the instruction. The processing is started, but after the recording management data DCR already recorded on the disk 2 is checked, whether or not the disk is in an unrecorded state is identified, and further, predetermined recording management data DCW is recorded on the disk 2 Actually, recording of the video signal SVI and the audio signal SAI is started.
[0068]
Therefore, even during the delay time τd required to check the record management data DCR already recorded on the disk 2 and finish recording the predetermined record management data DCW on the disk 2, the multiplex circuit 15 outputs the record buffer. The compressed data DPW is supplied to the memory 16. For this reason, if the compressed data DPW supplied from the multiplex circuit 15 during the delay time τd is simply supplied to the encoder 17 side via the recording buffer memory 16, between the compressed data DPW and the recording management data DCW. In order to cause interference, the recording buffer memory 16 holds the compressed data DPW supplied during the delay time τd until the recording management data DCW is recorded on the disk 2, and immediately after the delay time τd elapses. By sending the stored compressed data DPW to the encoder 17 side, the above interference is prevented.
[0069]
Further, the recording buffer memory 16 does not send all of the compressed data DPW held within the delay time τd all at once to the encoder 17 side, but continuously supplies the video signal SVI and audio supplied from the outside. In synchronization with the supply timing of the signal SAI, the compressed data DPW is sent to the encoder 17 in order from the oldest in time series, and the video signal SVI that is supplied within the period until the next recording end instruction is given. The compressed data DPW for the audio signal SAI is also sent to the encoder 17 side in the same manner.
[0070]
Therefore, as shown in FIG. 7, the recording buffer memory 16 has the video signal SVI and audio supplied from the outside within a period T from the time point ts when the user gives an instruction to start recording to the time point te when the user gives an instruction to end recording. The compressed data DPW is continuously sent to the encoder 17 side with a delay time τd as a whole with respect to the signal SAI. As a result, the video signal SVI and the audio signal SAI supplied within the period T can be recorded on the disc 2 without being lost.
[0071]
Furthermore, although a delay of the delay time τd occurs, the video signal SVI and the audio signal SAI from the time point ts when the recording start instruction is substantially issued are recorded. Therefore, the delay time τd as in the prior art is recorded. The problem that minutes are not recorded is solved. For example, the user makes a wiring connection so that the video signal SVI and the audio signal SAI of the television broadcast received by the television set are supplied to the information recording / reproducing apparatus 1, and at a desired time point while watching the reproduced video of the television set. When an instruction to start recording is given at ts, the television broadcast from that time ts can be recorded on the disc 2 without being lost.
[0072]
When the operation button switch 9b gives an instruction to end recording, the central control circuit 8 records all the compressed data DPW in the recording buffer memory 16 on the disk 2 and then records management for indicating the completion of recording. After the data DCW is recorded on the disk 2, the recording process is finally terminated. The recording management data DCW for indicating the completion of recording is also supplied from the central control circuit 8 to the recording buffer memory 16 and sent to the encoder 17 side through the recording buffer memory 16 so as to be recorded on the disk 2. ing.
[0073]
Depending on the capacity of the recording buffer memory 16, the delay time τd may not be completely absorbed. Even in this case, recording can be started with the minimum missing time.
[0074]
When the operation button switch 9f gives an instruction for finalizing processing, which will be described later, the central control circuit 8 supplies the recording management data DCW for finalizing processing to the recording buffer memory 16, and the encoder via the recording buffer memory 16 The recording management data DCW is recorded on the disk 2 by sending it to the 17 side.
[0075]
The recording management data DCW at the start of recording, the recording management data DCW at the end of recording, and the recording management data DCW at the time of finalizing processing pass through the encoder 17 and the recording circuit 18 shown in FIG. 6 as recording data DWT. By being supplied to the pickup 4, it is recorded on the disc 2.
[0076]
In FIG. 6 again, the reproduction system 7 includes D / A converters 19 and 20, a video expansion circuit 21, an audio expansion circuit 22, a demultiplex circuit 23, a reproduction buffer memory 24, a decoder 25, and a reproduction circuit 26. ing.
[0077]
Here, when the user operates the operation button switch 9c, the central control circuit 8 detects this, causes the reproduction system 7 to perform a reproduction operation according to the control signals C5, C6, and C7, and when the user operates the operation button switch 9d, The control circuit 8 detects this and causes the reproduction system 7 to stop the reproduction operation.
[0078]
The reproduction circuit 26 shapes the waveform of the detection signal (RF signal) DRD read from the disk 2 by the pickup 4 in accordance with the control signal C5 supplied from the central control circuit 8, and reproduces the binary generated by the waveform shaping. Data DPP is output to the decoder 25.
[0079]
The decoder 25 decodes (restores) the reproduction data DPP based on a predetermined decoding method corresponding to the encoding method of the encoder 17 in accordance with the control signal C6 supplied from the central control circuit 8, and decode data generated thereby The DPR is supplied to the reproduction buffer memory 24.
[0080]
The reproduction buffer memory 24 receives and temporarily stores the decoded data DPR, rearranges it into the decoded data DPAV synchronized with a predetermined timing, and outputs it to the demultiplex circuit 23.
[0081]
Even when the user instructs the recording system 6 to start recording by operating the operation button switch 9a, the central control circuit 8 checks the recording management data DCR already recorded on the disk 2. Further, the reproduction circuit 26, the decoder 25, and the reproduction buffer memory 24 are operated, and the reproduced recording management data DCR is input via the reproduction buffer memory 24.
[0082]
Even when the user operates the operation button switch 9f to instruct finalization processing, the central control circuit 8 uses the reproduction circuit 26 and the decoder in order to check the recording management data DCR already recorded on the disc 2. 25 and the reproduction buffer memory 24 are operated, and the reproduced recording management data DCR is input via the reproduction buffer memory 24.
[0083]
The demultiplexing circuit 23 demultiplexes the data DPVO related to video information and the data DPAO related to audio information that are time-division multiplexed in the decoded data DPAV in accordance with the control signal C7 supplied from the central control circuit 8. The data DPVO is supplied to the video expansion circuit 21 and the data DPAO is supplied to the audio expansion circuit 22.
[0084]
In accordance with the control signal C7 supplied from the central control circuit 8, the video decompression circuit 21 performs a predetermined decompression process corresponding to the compression method of the video compression circuit 14 on the data DPVO that is video information, thereby decompressing the data DPVO. The video data DVO thus output is output.
[0085]
The audio expansion circuit 22 expands the data DPAO, which is audio information, by performing predetermined expansion processing corresponding to the compression method of the audio compression circuit 13 in accordance with the control signal C7 supplied from the central control circuit 8. Generated audio data DAO is output.
[0086]
The D / A converter 19 converts the expanded video data DVO into an analog video signal SVO and outputs it. The D / A converter 20 converts the expanded audio data DAO into an analog audio signal SAO and outputs it. Also, the audio information data DPAO is output to the outside as digital data.
[0087]
The physical address detection circuit 25 inputs a detection signal of reflected light from the groove and land prepit of the disk 2 detected by the pickup 4 during recording and reproduction, and binarizes the detection signal by shaping the waveform. Thus, an address detection signal DADR representing a physical address is generated and supplied to the central control circuit 8.
[0088]
The central control circuit 8 includes a memory 8a that stores a preset system program in advance, and a microprocessor (CPU) that controls the operation of the entire recording / reproducing apparatus 1 by executing the system program. Yes.
[0089]
That is, the central control circuit 8 controls the operation of the servo circuit 5, the recording system 6 and the reproducing system 7 by the microprocessor, receives a user instruction via the operation unit 9, and further, the present recording / reproducing apparatus. 1, the display unit 10 displays the current operation content of 1, various information related to recording information and reproduction information, and a menu display for presenting an operation method of the recording / reproducing apparatus 1 to the user. Further, the servo circuit 5, the recording system 6 and the reproduction system 7 are synchronously controlled based on the address detection signal DADR from the physical address detection circuit 25, and recording on the disk 2 is performed based on the ECC block address shown in FIG. And are supposed to play.
[0090]
Next, an operation example of the information recording / reproducing apparatus 1 having such a configuration will be described with reference to FIGS. FIG. 8 is a flowchart showing an operation during recording, and FIG. 9 is a flowchart showing an operation during finalizing processing.
[0091]
In FIG. 8, when the user loads the disc 2 in the information recording / reproducing apparatus 1 and instructs the start of recording by the operation button 9a, the recording operation is started according to the simple format.
[0092]
First, in step 100, the recording management data DCR already recorded on the disk 2 is read. Next, in step 102, the central control circuit 8 determines whether or not the recording management data DCR has been read. Here, if the recording management data DCR cannot be read, it is determined that the loaded disk 2 is a new disk that has not been formatted at all, and the process proceeds to step 104. On the other hand, if the recording management data DCR can be read, it is determined that the loaded disk 2 is already formatted, and the process proceeds to step 116.
[0093]
In step 104 described above, data indicating a simple format is recorded in a predetermined area in the RMA and lead-in area LIA shown in FIGS.
[0094]
In the process of an unrecorded disc, the process of step 104 may be performed simultaneously with step 112 described later.
[0095]
In the standard format, the recording management data DCW is recorded in the entire range of the lead-in area LIA. Therefore, even with the time required for this processing, a delay time τd of about 65 seconds is generated in terms of 1 × speed. On the other hand, in the simple format, a processing time of about 5 seconds is sufficient.
[0096]
In step 106, after the recording of the control data is completed, the head address of the data recording area DRA, that is, the ECC block address (3000) h (in the case of a sector address, (30000) h in the case of a new disk). ) Starts recording the main data.
[0097]
Next, in step 108, it is determined whether or not a recording end instruction has been given by the operation button switch 9b. If a recording end operation has been performed, the process proceeds to step 110.
[0098]
In step 110, the 32 ECC block lead-out area LOA is subsequently recorded from the end address of the main data recorded in the data recording area DRA.
[0099]
Note that the lead-out area LOA is not limited to 32 ECC blocks, but when the start end address of the lead-out area LOA is detected in step 116 described later, the pickup does not overshoot the unrecorded area of the disc. The record length must be secured. On the other hand, it is better to shorten the recording time. Usually, an integer multiple of 1 ECC block is convenient.
[0100]
In the standard format, the recording time of the lead-out area LOA varies depending on the value of the end address of the main data, but generally this required time is about 45 seconds to 130 seconds. On the other hand, this simple format only takes about 0.5 seconds.
[0101]
Next, at step 112, after recording management data DCW relating to the main data recorded in the data recording area DRA is recorded in the recording manager area RMA, data when a new disc 2 is loaded in the information recording / reproducing apparatus 1 is recorded. Recording ends. Note that this step 112 may not be performed depending on the recording size of the main data.
[0102]
Next, if it is determined in step 102 that a disc 2 that has already been formatted is loaded, the process proceeds to step 116.
[0103]
In step 116, the end of the main data already recorded in the data recording area DRA, that is, the address of the start end of the lead-out area LOA is detected. Next, in step 118, recording of the main data is started from the address of the start end of the lead-out area LOA. That is, new main data is recorded from the next address of the already recorded main data.
[0104]
Next, in step 108, it is determined whether or not the user has operated the operation button switch 9b to give an instruction to end the recording. When the recording end operation is performed, the process proceeds to step 110.
[0105]
Next, the operation of the finalizing process will be described with reference to FIG.
[0106]
In FIG. 9, when the user operates the operation button switch 9f, the finalizing process starts. First, in step 200, the end of the main data already recorded in the data recording area DRA, that is, the address of the start end of the lead-out area LOA is detected. Further, a lead-out area LOA in a predetermined range in the standard format is recorded.
[0107]
Next, in step 202, the recording management data DCW is recorded in the recording manager area RMA.
[0108]
Next, in step 204, recording management data DCW as predetermined data indicating finalization is recorded in a predetermined area of the lead-in area LIA in accordance with the standard format.
[0109]
As described above, when the finalizing process is performed, if the loaded disc 2 is in the simple format, the recording management data DCW is automatically recorded in accordance with the standard format. Compatibility is ensured.
[0110]
Further, after finalizing the disc once, the disc can be returned to the simple format again by recording data indicating the simple format in a predetermined area in the lead-in area LIA.
[0111]
As described above, according to the present embodiment, recording is started by using a simple format. First It is possible to greatly reduce the delay time. For this reason, operability can be improved.
[0112]
In addition, when the finalizing process is instructed after data recording is performed in the simple format, the disk on which the recording management data DCW is recorded in the simple format is converted to a standard format disk, which is compatible with a read-only DVD. Can be secured. It is also possible to finalize the disc once and then return the disc to the simple format again in a short time.
[0113]
【The invention's effect】
As described above, according to the present invention, a simple format data recording format for recording less recording management data than the standard format is provided, so that the recording start and end processing of information to be originally recorded can be quickly performed. Can be done. As a result, it is possible to provide an information recording / reproducing method and information recording / reproducing apparatus with good operability for the user.
[0114]
In addition, when finalization processing is performed, record management data conforming to the standard format is re-recorded on the information recording medium on which information recording is performed conforming to the simple format. An information recording medium that can be applied to a reproducing apparatus can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram schematically showing a data structure in a DVD capable of recording and reproducing information according to the present embodiment.
FIG. 2 is an explanatory diagram schematically showing a configuration of one ECC block in a DVD capable of recording and reproducing information according to the present embodiment.
FIG. 3 is an explanatory diagram schematically showing the configuration of one data sector in a DVD capable of recording and reproducing information according to the present embodiment.
FIG. 4 is an explanatory diagram schematically showing a configuration of recorded data in a DVD capable of recording and reproducing information according to the present embodiment.
FIG. 5 is an explanatory diagram schematically showing a configuration of recording management data in a DVD capable of recording and reproducing information according to the present embodiment.
FIG. 6 is a block diagram showing a configuration of an information recording / reproducing apparatus according to the present embodiment.
FIG. 7 is a timing chart showing data recording timing of the information recording / reproducing apparatus in the embodiment.
FIG. 8 shows a case where data recording is performed on an unrecorded DVD, data recording is performed according to a standard format, and data recording is performed according to a simple format in the information recording / reproducing apparatus according to the present embodiment. It is a flowchart for demonstrating each operation | movement of.
FIG. 9 is a flowchart for explaining an operation when performing a finalizing process in the information recording / reproducing apparatus according to the embodiment;
FIG. 10 is an explanatory diagram for explaining a problem of a conventional information recording / reproducing apparatus.
[Explanation of symbols]
1 Information recording / reproducing apparatus
2 Disc
6 ... Recording system
7 ... Reproduction system
8 ... Central control circuit
9 ... Operation part
9a to 9f ... operation button switches
16: Recording buffer memory
25. Physical address detection circuit
RIA ... R-information area
RMA ... Recording Manager Area
LIA ... Lead-in area
DRA ... Data recording area
LOA ... Lead out area

Claims (11)

  1. A recording method of an information recording medium capable of recording information,
    When writing main data to be recorded in the data recording area, recording is performed in the recording manager area and the lead-in area of the information recording medium as compared with recording management data determined in advance according to a standard format. amount Ri minor der recording method of the information recording medium characterized by recording the recording management data conforming to the simple format containing the information necessary for the control of at least the recording and reproducing.
  2.   2. The information recording medium recording method according to claim 1, wherein when it is determined that an information recording medium on which information is to be recorded is unrecorded, recording in the simple format is performed.
  3.   The information recording medium has a data recording area, a recording manager area, a lead-in area, and a lead-out area that are determined in advance according to a standard format, and the lead-out area has an integral multiple of error correction unit blocks. 3. The information recording medium recording method according to claim 1, wherein lead-out information is recorded.
  4.   4. The information recording medium recording method according to claim 1, wherein lead-out information for 32 ECC blocks is recorded in the lead-out area.
  5.   5. The record management data compliant with a standard format is re-recorded when finalizing the information recording medium on which information recording is performed according to the simple format. 2. A recording method for an information recording medium according to item 1.
  6.   When an information recording instruction is given, information within a delay time required until actual recording of the information is temporarily retained, and the retained information is recorded from the actual recording start time. The information recording medium recording method according to claim 1.
  7. An information recording apparatus for recording information on an information recording medium capable of recording information,
    When writing main data to be recorded in the data recording area, recording is performed in the recording manager area and the lead-in area of the information recording medium as compared with recording management data determined in advance according to a standard format. An information recording apparatus comprising recording management data recording means for recording recording management data in a small amount and recording at least a simple format including information necessary for control of recording and reproduction .
  8.   8. The information recording apparatus according to claim 7, wherein when the information recording medium on which information is to be recorded is determined to be unrecorded, recording is performed in the simple format.
  9.   9. The information recording apparatus according to claim 8, wherein the recording management data recording unit records lead-out information for 32 ECC blocks in the lead-out area.
  10.   10. A finalizing processing means for re-recording recording management data compliant with a standard format with respect to an information recording medium on which information recording is compliant with the simple format is provided. 2. An information recording apparatus according to item 1.
  11.   When an information recording instruction is given, information recording means is provided for temporarily storing information within a delay time required until actual recording of the information is started, and recording the stored information from the actual recording start time. The information recording apparatus according to claim 7, wherein the information recording apparatus is an information recording apparatus.
JP2000273917A 1999-09-10 2000-09-08 Information recording medium recording method and information recording apparatus Active JP4302304B2 (en)

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Publication number Priority date Publication date Assignee Title
JP3539414B2 (en) 2001-09-25 2004-07-07 株式会社日立製作所 The information recording apparatus
KR20030065160A (en) 2002-01-31 2003-08-06 삼성전자주식회사 Storage medium on which further data can be written after “finalize”, recording/ reproducing apparatus and method thereof
KR20040028469A (en) 2002-09-30 2004-04-03 엘지전자 주식회사 Method for managing a defect area on optical disc write once
US7233550B2 (en) 2002-09-30 2007-06-19 Lg Electronics Inc. Write-once optical disc, and method and apparatus for recording management information on write-once optical disc
EP2085971B1 (en) 2002-12-11 2014-06-04 LG Electronics Inc. Method of managing overwrite and method of recording management information on an optical disc write once
US7355934B2 (en) 2003-01-27 2008-04-08 Lg Electronics Inc. Optical disc of write once type, method, and apparatus for managing defect information on the optical disc
TWI334595B (en) 2003-01-27 2010-12-11 Lg Electronics Inc Optical disc, method and apparatus for managing a defective area on an optical disc
MXPA05012044A (en) 2003-05-09 2006-02-03 Lg Electronics Inc Write once optical disc, and method and apparatus for recovering disc management information from the write once optical disc.
BRPI0410198A (en) 2003-05-09 2006-05-23 Lg Electronics Inc recording media, method of managing disk management information, method for retrieving management information from the recording medium, apparatus for managing disk management information on the recording medium, and apparatus for retrieving management information from recording medium
CN102063917A (en) * 2003-07-08 2011-05-18 松下电器产业株式会社 Write-once recording medium production method, recording method and reproduction apparatus
KR20050009031A (en) 2003-07-15 2005-01-24 엘지전자 주식회사 Method for recording management information on optical disc write once
US7313065B2 (en) 2003-08-05 2007-12-25 Lg Electronics Inc. Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc
KR101108953B1 (en) 2003-09-08 2012-01-31 엘지전자 주식회사 Write-once optical disc, and method and apparatus for recording management information on the write-once optical disc
KR101041819B1 (en) 2003-09-08 2011-06-17 엘지전자 주식회사 Write-once optical disc and method for recording management information thereon
AU2004271478B2 (en) 2003-09-08 2010-07-08 Lg Electronics Inc. Write-once optical disc, and method and apparatus for management information thereon
US7702592B2 (en) * 2003-11-14 2010-04-20 Sonic Solutions Secure transfer of content to writable media
CN100530407C (en) 2004-01-06 2009-08-19 日本先锋公司 Information recording device and method
CN100530408C (en) 2004-02-27 2009-08-19 日本先锋公司 Information recording device and method, and computer program

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