WO2005076262A1 - Support d’enregistrement d’informations - Google Patents

Support d’enregistrement d’informations Download PDF

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Publication number
WO2005076262A1
WO2005076262A1 PCT/JP2005/001340 JP2005001340W WO2005076262A1 WO 2005076262 A1 WO2005076262 A1 WO 2005076262A1 JP 2005001340 W JP2005001340 W JP 2005001340W WO 2005076262 A1 WO2005076262 A1 WO 2005076262A1
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WO
WIPO (PCT)
Prior art keywords
area
recording
information
read
recording medium
Prior art date
Application number
PCT/JP2005/001340
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English (en)
Japanese (ja)
Inventor
Keiji Katata
Takeshi Koda
Eiji Muramatsu
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2005076262A1 publication Critical patent/WO2005076262A1/fr

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24082—Meandering

Definitions

  • the present invention relates to a technical field of an information recording medium such as a DVD.
  • a part of a recordable information recording medium such as a CD-RZW or a DVD-RZW is made a read-only area from the time of manufacture, and programs and data are written in this read-only area (referred to as a "ROM area” in this application as appropriate). ),
  • ROM area read-only area
  • program data is updated or new data is created, write it to a recordable area (referred to as “RAM area” as appropriate in this application) to ensure consistent handling of program data.
  • RAM area a recordable area
  • the ROM area of the recordable information recording medium is created with the same recording pits (Readable Emboss) as the read-only information recording medium.
  • a recording film such as a dye film is formed in the entire area including the ROM area and the RAM area. Therefore, if data is written into the ROM area in the same manner as the RAM area, that is, if a laser for writing is irradiated, the characteristics of the ROM area are destroyed and reading becomes impossible.
  • the ROM area includes an LPP. (Land PrePit) and other techniques for canceling the formation of address information are disclosed!
  • an ATIP (Absolute Time In Pre- groove) signal that is, a technique for stopping recording of address information in advance. More specifically, it includes a ROM area in which the first session data is recorded by pits having irregularities, and a first RAM area provided on the outer peripheral side of the powerful ROM area and capable of recording data of the second session, Another data is overwritten in the ROM area. In order to prevent the ATIP signal from being recorded in the head area of the ROM area, a technique for stopping recording of the ATIP signal has been disclosed.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2001-307329
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2002-42347
  • Patent Document 3 JP 2003-281738 A
  • Patent Document 4 JP 2001-148140 A
  • Patent Document 5 JP-A-2003-157572
  • Patent Document 6 Japanese Patent Application Laid-Open No. 2003-196886
  • Patent Document 7 JP-A-10-308038
  • the present invention has been made in view of, for example, the above-described problem, and aims to prevent erroneous writing that cannot be read in a read-only area that is a part of a recordable information recording medium.
  • An object of the present invention is to provide an information recording medium, an information recording device and a method capable of performing the above. Means for solving the problem
  • the information recording medium has a groove track on which recording data can be recorded, and (i) clock information (wobble) and A recording area including a main recording area where address information (LPP) can be detected and (ii) a rear area following the main recording area in a direction along the groove track (RAM area: recordable area ),
  • the clock information is recorded, and an embossed row corresponding to predetermined pre-data is formed in advance in the direction along the groove track, behind the recording area, and the reproduction is performed so that the clock information can be detected.
  • a dedicated area (ROM area), and the clock information and the address information are detected in the rear area in order to prevent the recording data from being recorded in the read-only area. It is formed to be impossible.
  • FIG. 1 shows a basic structure of an optical disc according to an embodiment of the information recording medium of the present invention, wherein an upper part is a schematic plan view of an optical disc having a plurality of recording areas, and a lower part corresponding thereto.
  • the side part is a schematic conceptual diagram of the recording area structure in the radial direction.
  • FIG. 2 is a partially enlarged perspective view of a recording surface of the optical disc according to the embodiment.
  • FIG. 3 is a schematic conceptual diagram showing clock information and address information necessary for recording to obtain a wobbling force of a groove track in an optical disc according to an embodiment of the information recording medium of the present invention.
  • FIG. 4 is a schematic conceptual diagram conceptually showing a recording area including a double track to which the basic principle of an optical disc according to an embodiment of the information recording medium of the present invention is applied.
  • FIG. 5 is a schematic conceptual diagram showing a specific example of a recording area including a double track to which the basic principle of an optical disc according to an embodiment of the information recording medium of the present invention is applied.
  • FIG. 6 is a schematic conceptual diagram showing another specific example in which attention is paid to a wobble signal to which the basic principle of an optical disc according to an embodiment of the information recording medium of the present invention is applied.
  • FIG. 7 is a schematic structural diagram of a data area showing a specific example of a recording area of an optical disc according to a comparative example.
  • FIG. 8 is a schematic data showing another specific example of the recording area of the optical disc according to the comparative example. It is a structural diagram of an area.
  • FIG. 9 is a block diagram showing an overall configuration of an information recording / reproducing apparatus for recording / reproducing an information recording medium of the present invention.
  • a group track capable of recording recording data is formed in advance, and (i) a main recording capable of detecting clock information (wobble) and address information (LPP).
  • a recording area (RAM area: recordable area) including an area and (ii) a rear area following the main recording area in a direction along the groove track, and the clock information is recorded;
  • a read-only area (ROM area) in which an emboss pit row corresponding to predetermined pre-data is formed in advance in the direction along the groove track and behind the recording area, and the clock information can be detected.
  • the clock information and the address information are formed so as to be undetectable in order to prevent the recording data from being recorded in the reproduction-only area.
  • clock information is not transmitted in a rear area following the main recording area in a direction along the group track in the recording area.
  • it is configured so that a pebble is hardly or completely formed in order to be undetectable.
  • pre-format information such as LPP or ATIP is not recorded so that address information cannot be detected! RU
  • an information recording device such as a disk drive records only two pieces of information necessary for writing to a recording area, that is, only one of clock information and address information, for example, the OPC process in the OPC process is performed. There is a possibility that the test writing is performed only in the area, the OPC area is protruded, and writing to the read-only area is continued by mistake.
  • the present embodiment if an erroneous write is attempted to be performed on the read-only area via the information recording apparatus after recording on the recording area, the clock information and the address are recorded in the rear area. Since the information cannot be detected, an error occurs during the recording operation, and the recording operation is stopped.Therefore, regardless of the specifications of the information recording device or the recording control procedure, an error in the read-only area may occur. This makes it possible to prevent writing. In other words, in the existing optical information recording media such as CDs, DVDs, Blu-ray discs, etc., it is possible to maintain the compatibility of the media format and effectively prevent erroneous writing in the read-only area. It can be prevented.
  • the clock information is recorded in the main recording area by a wobble in the groove track, and in the rear area, The amplitude of the pebble is gradually decreasing.
  • the address information is recorded in each of the main recording areas by land pre-pits (LPP).
  • the main recording area and the rear area can be significantly distinguished depending on the presence or absence of a land pre-pit (LPP). Therefore, in the rear area, the address information out of the clock information and the address information cannot be detected more reliably, so that erroneous writing to the read-only area can be more reliably prevented.
  • LPP land pre-pit
  • the read-only area includes: (i) a main playback area in which the clock information can be detected; and (ii) a direction along the groove track. And a front region following the main reproduction region.
  • the front region and the main reproduction region in which clock information can be detected can be significantly distinguished by, for example, the presence or absence of a pebble. Since the clock information among the clock information and the address information cannot be detected more reliably, it is possible to more reliably prevent erroneous writing in the read-only area.
  • the clock information is formed by the wobbles of the embossed pit row, and in the front area, the amplitude of the wobbles gradually increases. It may be configured as follows.
  • the front area and the main reproduction area where only “Null” data is recorded can be remarkably distinguished by the magnitude of the amplitude of the pebble.
  • the clock information of the clock information and the address information cannot be detected more reliably, so that it is possible to more reliably prevent erroneous writing to the read-only area.
  • the read-only area is formed with land pre-pits.
  • the read-only area and the recording area can be remarkably distinguished depending on the presence or absence of the land pre-pit, so that the clock information and the address information can be detected more reliably in the rear area described above. Since it becomes impossible, erroneous writing to the read-only area can be more reliably prevented. [0029] Such an operation and other advantages of the present embodiment will be apparent from examples described below.
  • the main recording area, the rear area formed so that the clock information and the address information cannot be detected, and the reproduction area Dedicated area enables compatibility with existing optical information recording media such as CDs, DVDs, Blu-ray discs and other media formats. At the same time, erroneous writing to the read-only area can be effectively prevented.
  • FIG. 1 shows a basic structure of an optical disc according to an embodiment of the information recording medium of the present invention, wherein an upper part is a schematic plan view of an optical disc having a plurality of recording areas, and a lower part corresponding thereto.
  • the portion is a schematic conceptual diagram of the recording area structure in the radial direction.
  • FIG. 2 is a partially enlarged perspective view of the recording surface of the optical disc of the present embodiment.
  • the information recording medium according to the present embodiment is a rewritable optical disc capable of recording many times and reproducing many times by a reversible change recording method by various kinds of heating or the like.
  • the optical disc 100 is, for example, on a recording surface on a disc main body having a diameter of about 12 cm like a DVD, with the center hole 1 being the center and the inner circumferential force being directed toward the outer circumferential side.
  • An OPC area 150, a lead-in area 101, a data area 102, and a lead-out area 103 according to the example are provided.
  • the OPC area 150 is provided for detecting the optimum recording laser power, that is, for calibrating the recording laser power.
  • tracks 10 such as groove tracks and land tracks are alternately provided in a snail or concentric manner centering on the center hole 1.
  • the optical disc 100 is placed on a disc-shaped transparent substrate 106 (on the lower side in FIG. 2), and reversible change recording (destruction) by heating or the like constituting an information recording surface is performed.
  • a (write) type recording layer 107 is laminated, and a reflective layer 108 is further laminated thereon (the lower side in FIG. 2).
  • Groove tracks GT and land tracks LT are alternately formed on the information recording surface of the recording layer 107 which also has a surface force.
  • the laser beam LB is irradiated onto the groove track GT via the transparent substrate 106.
  • reversible change recording is performed by heating the recording layer 107 or the like according to the recording data.
  • the recording data recorded by the reversible change recording by heating the recording layer 107 or the like is executed.
  • the groove track GT, the land track LT, the wobbled 109, the land pre-pit LPP, and the like will be described later in detail.
  • data is recorded on the track 10 in units of 1 unit of sector 11, for example, 1 ECC block (cluster) which is a management unit in which 16 data units are collected.
  • This 1ECC block is a management unit based on preformat address information that can be corrected.
  • the present invention is not particularly limited to the optical disc 100 having four recording areas as shown in FIG.
  • the OPC area 150 does not have to be located on the innermost circumference.
  • the OPC area 150 may be located in the lead-in area 101, the data area 102, or the lead-out area 103 in FIG. Alternatively, it may be located between the lead-in area 101 and the data area 102, between the data area 102 and the lead-out area 103, or on the outer peripheral side of the lead-out area 103.
  • the presence of the lead-in area 101 and the lead-out area 103 is optional, and two recording areas, an OPC pit or an OPC area 150 for recording an OPC pattern and a data area 102 for recording data, are provided. It is sufficient if at least it is provided.
  • such OPC areas 150 may be arranged as one unit or divided into a plurality of units.
  • FIG. 3 is a schematic conceptual diagram showing clock information and address information necessary at the time of recording to obtain the wobbling force of the groove track in the optical disc according to the embodiment of the information recording medium of the present invention.
  • the groove track GT is oscillated at a constant amplitude and a constant spatial frequency. That is, the group track GT is wobbling, and the cycle of the wobble 109 is set to a predetermined value.
  • the preformat address information may be recorded in advance by modulating the groove track GT wobble 109 by a predetermined modulation method such as frequency modulation or phase modulation.
  • address pits called land pre-pits LPP indicating pre-format address information are formed on the land track LT.
  • a recordable area such as a disk drive
  • a recordable area such as a RAM area (which constitutes an example of the “recording area” according to the present invention)
  • clock information and address information used for writing are required in addition to the recording parameters such as the optimum recording power of the laser beam and the recording strategy.
  • address information may be temporarily unreadable during writing due to missing or noise.
  • the recording drive has a function to supplement missing address information with clock information. In the comparative example described later, only the address information is lost.
  • the clock information is a force extracted from the wobble
  • the wobble is also used for controlling the rotation of the optical disk. Therefore, if the wobble is eliminated in a wide range, the rotation of the optical disk becomes abnormal and the read-only area cannot be read. . Therefore, as will be described later, both the clock information and the address information used for writing in the “rear area” according to the present invention, which is located forward of the track direction from the boundary from the recording area to the reproduction-only area, are used. Is formed so that it cannot be detected.
  • FIG. 4 is a schematic conceptual diagram conceptually showing a recording area including a groove track to which the basic principle of an optical disc according to an embodiment of the information recording medium of the present invention is applied.
  • FIG. 5 is a schematic conceptual diagram showing a specific example of a recording area including a groove track to which the basic principle of the optical disc according to the embodiment of the information recording medium of the present invention is applied.
  • FIG. 6 is a schematic conceptual diagram showing another specific example in which attention is paid to a double signal to which the basic principle of the optical disc according to the embodiment of the information recording medium of the present invention is applied.
  • the optical disc according to the present embodiment uses the optical disc in order to prevent clock information from being extracted in the area near the boundary where the area shifts from the recordable area to the read-only area. Is not formed. At the same time, preformatting the address information No information is formed. More specifically, in the read-only area, LPP (Land PrePit), which is address information, is not formed in the DVD-RW Verl. 1 format according to the standard. This LPP has not been formed. Therefore, writing cannot be started in the read-only area.
  • LPP Land PrePit
  • one specific example of the optical disk according to the present embodiment is a DVD-RZW or other optical information recording medium that reproduces, for example, the area of the first border (first bordered zone). It is a dedicated area.
  • the 10 ECC blocks located behind the recording track direction and the 6 ECC blocks located ahead of the boundary in the recording track direction The amplitude is made very small and AM (Amplitude Modulation) is applied (see Fig. 6 (a)).
  • AM Amplitude Modulation
  • the comparator in the information recording / reproducing apparatus described later cannot detect the wobble signal from the band-pass filter.
  • the aforementioned “10 ECC blocks” constitute one specific example of the “rear area” in the “recording area” according to the present invention.
  • the “6 ECC block” constitutes a specific example of the “front area” in the “read only area” according to the present invention. It is preferable that an LPP (Land PrePit) is not provided in the 10 ECC block which is a rear area in the recording area.
  • the read-only area of an optical information recording medium such as a DVD-RZW is provided with LPP (Land PrePit), which is address information, according to the standard.
  • a configuration may be adopted in which a pebble is almost or completely eliminated (see FIG. 6 (b)).
  • more advanced control is required in the manufacturing process. More specifically, the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the band-pass filter as in the above-described specific example.
  • the frequency is modulated from, for example, ⁇ ⁇ ⁇ to ⁇ ,
  • the comparator in the information recording / reproducing apparatus can detect the wobble signal from the band-pass filter. Will not be able to.
  • the groove track itself may not be formed in advance in at least the 10 ECC block of the 10 ECC block and the 6 ECC block described above. Also in this specific example, more specifically, as in the above-described specific example, the comparator in the information recording / reproducing apparatus cannot detect a small signal having a bandpass filter power.
  • FIG. 7 is a schematic structural diagram of a data area showing a specific example of a recording area of an optical disc according to a comparative example.
  • FIG. 8 is a schematic data area structure diagram showing another specific example of the recording area of the optical disc according to the comparative example.
  • the reproduction in the lead-in area is performed.
  • the ATIP signal storing the recording parameter information such as the optimum recording power of the laser beam and the recording strategy is deleted. Therefore, it becomes impossible to read the recording parameters on the conventional optical disc such as CD-RZW, so that it becomes incompatible with the conventional recordable optical disc and the conventional recording drive can prevent erroneous writing to the read-only area. It might be power.
  • a power calibration that detects an optimal recording power value in the OPC area is performed.
  • the embodiment of the information recording medium of the present invention when an information recording device described later attempts to erroneously write to the read-only area via recording in the recording area.
  • the clock Since the information and address information cannot be detected, an error occurs in the recording operation and the recording operation is stopped.Therefore, regardless of the specifications of the information recording device and the recording control procedure, incorrect writing to the read-only area Can be prevented.
  • the current recordable optical disc has an unrecordable area, that is, a read-only area
  • the optical disc that is read first In the disc format such as the identification information of the disc, address information of an area that cannot be recorded first is defined.For example, a recording drive such as a disc drive does not recognize and record an unrecordable area. Maybe the power that can be controlled as.
  • the conventional recording drive cannot identify the new standard-based address range of the read-only area. In some cases, erroneous writing is performed in the read-only area.
  • the embodiment of the information recording medium of the present invention as described above, in the existing optical information recording medium such as CD, DVD, Blu-ray disc, etc. This makes it possible to maintain compatibility of the media format and effectively prevent erroneous writing in the read-only area.
  • FIG. 9 is a block diagram showing the overall configuration of an information recording / reproducing apparatus for recording / reproducing an information recording medium according to the present invention.
  • pit data DP synchronized with the first clock signal CK1 is recorded according to the length of the recording mark.
  • the recording mark in this example is a pit, and the track is formed by a pit row.
  • the track has a meandering shape according to the wobble signal WB obtained by spread spectrum modulation of the wobble data DW.
  • the wobble signal WB is synchronized with the second clock signal CK2.
  • the first clock signal CK1 has a frequency N (N is a natural number) times that of the second clock signal CK2.
  • N 25
  • the second clock signal CK2 is 420 KHz
  • the first clock signal CK1 is 10.5 MHz.
  • the information recording / reproducing apparatus 200 includes an optical pickup 202 that irradiates the optical disc 100 with a reproducing beam and outputs a signal corresponding to the reflected light, a spindle motor 203 that controls the rotation of the optical disc 100, and a servo unit 222. Is provided.
  • the first clock signal CK1 and the pit synchronization signal SYNCp are supplied to the servo unit 222.
  • the servo unit 222 executes a focus servo and a tracking servo which are relative position control of the optical pickup 202 and the spindle servo for controlling the rotation of the spindle motor 203 in synchronization with these signals.
  • the optical pickup 202 includes a laser diode for irradiating a reproduction beam and a four-division detection circuit (not shown).
  • the four-split detection circuit divides the reflected light of the reproduction beam into four areas 1A, 1B, 1C, and ID shown in FIG. 9, and outputs a signal corresponding to the light amount of each area.
  • the head amplifier 204 amplifies each output signal of the optical pickup 202, and outputs the divided read signal la corresponding to the area 1A, the divided read signal lb corresponding to the area IB, the divided read signal lc corresponding to the area 1C, and the area Outputs divided read signal Id corresponding to ID.
  • the optical pickup 202 and the head amplifier 204 correspond to the optical pickup means according to the present invention.
  • the sum generation circuit 210 adds the divided read signals la, lb, lc, and Id to generate an addition circuit that outputs a sum read signal SRF.
  • the total reading signal SRF is a signal indicating the length of the recording mark.
  • the pit data demodulation circuit 211 reproduces the pit data DP based on the total read signal SRF and generates the first clock signal CK1. More specifically, the pit data DP is demodulated using a predetermined table to generate reproduced data. For example, when EFM modulation is used as a modulation method, a process of converting 14-bit pit data DP into 8-bit reproduced data is performed. Further, a descrambling process for rearranging the order of the reproduced data according to a predetermined rule is executed, and the processed reproduced data is output.
  • the reproduced data thus obtained is supplied to the pit data correction circuit 212 shown in FIG. 9, where it is subjected to error correction processing, interpolation processing, and the like, and then stored in the buffer 213.
  • the interface 214 sequentially reads out the data stored in the notifier 213, converts the data into a predetermined output format, and outputs it to an external device.
  • the push-pull signal generation circuit 220 calculates (la + ld)-(lb + lc) and generates a push-pull signal.
  • the component (la + ld) corresponds to the areas 1A and 1D on the left side in the reading direction, while the component (lb + lc) corresponds to the areas 1B and 1C on the right side in the reading direction.
  • the push-pull signal is a signal corresponding to the meandering of the track.
  • the push-pull signal is output to the servo unit 222 via the low-pass filter 221.
  • the servo unit 222 performs tracking control based on the push-pull signal.
  • the push-pull signal is supplied to the band pass filter 223.
  • the pass band of the band-pass filter 223 is set so that a wobble signal WB obtained by performing spread spectrum modulation on the wobble data DW during recording can be extracted from a push-pull signal. Accordingly, the bandpass filter 223 constitutes the above-described detection means together with the push-pull signal generation circuit 220, and its output signal is obtained by reproducing the wobble signal WB from the optical disc 100.
  • the comparator 224 if erroneous writing is attempted in the read-only area after recording in the recording area, clock information and address information cannot be detected in the rear area according to the present invention. In addition, since an error occurs during the recording operation and the recording operation is stopped, it is possible to prevent erroneous writing to the read-only area regardless of the specifications of the information recording device and the recording control procedure. It becomes. That is, it is possible to make the PLL (Phase Locked Loop) uncontrollable.
  • PLL Phase Locked Loop
  • Spread spectrum data reproducing circuit 230 reproduces spread spectrum data SS based on data B.
  • the details of the spread spectrum data reproduction circuit 230 differ depending on the type of modulation used when creating the master disk DS.
  • the RAND table 227 stores randomized patterns used for spread spectrum modulation during recording.
  • a randomized pattern is equivalent to a spreading code and uses a random function.
  • V a bit string generated.
  • the second clock signal CK2 is supplied to the RAND table 227, and random data RND is generated by reading a randomization pattern in synchronization with the second clock signal CK2, and the generated random data RND is spread spectrum.
  • the signal is supplied to the dispersion demodulation circuit 228. Further, the spread spectrum data SS output from the spread spectrum data reproducing circuit 230 is supplied to the spread spectrum demodulation circuit 228.
  • the spread spectrum demodulation circuit 228 is configured by a multiplication circuit (for example, an exclusive OR circuit XOR), and reproduces the double data DW by multiplying the spread spectrum data SS by the random data RND. At this time, signals that are not in the original signal band are converted to signals outside the band by multiplication. The reproduced data DW thus reproduced is subjected to error correction in an error correction circuit 229 and then output.
  • a multiplication circuit for example, an exclusive OR circuit XOR
  • a rewritable optical disc such as a CD-RZW or a DVD-RZW has been described as a specific example of the information recording medium.
  • the present invention is applicable to all CDs using It can also be used for optical information recording media such as large-capacity recording media such as DVDs and Blu-ray discs.
  • the information recording medium according to the present invention can be used for, for example, a DVD or the like for consumer use or business use that can record various types of information at high density.

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  • Software Systems (AREA)
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Abstract

Un support d’enregistrement d’informations comprend une piste en sillon formée à l’avance et capable d’enregistrer les données d’enregistrement et comporte : (i) un secteur d’enregistrement principal capable de détecter des informations d’horloge (oscillation) et des informations d’adresse (LPP); (ii) un secteur d’enregistrement (secteur RAM) comportant un secteur de deuxième partie suivant le secteur d’enregistrement principal le long de la piste en sillon ; et un secteur dédié à la reproduction (secteur ROM) contenant des informations d’horloge, comprenant une série de creux repoussés formés à l’avance correspondant à des données préalables prédéterminées suivant le secteur d’enregistrement le long de la piste en sillon, et capable de détecteur des informations d’horloge. Pour empêcher l’enregistrement des données d’enregistrement dans le secteur dédié à la reproduction, les informations d’horloge et les informations d’adresse ne peuvent pas être détectées dans le secteur de deuxième partie.
PCT/JP2005/001340 2004-02-06 2005-01-31 Support d’enregistrement d’informations WO2005076262A1 (fr)

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JP2014191339A (ja) * 2013-03-28 2014-10-06 Canon Inc 画像表示装置およびその制御プログラム

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JP2002074664A (ja) * 2000-08-31 2002-03-15 Sony Corp 記録装置および方法、再生装置および方法、並びに記録媒体
JP2003281738A (ja) * 2002-03-22 2003-10-03 Ricoh Co Ltd 光ディスク

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