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公开(公告)号：JP2010267379A
公开(公告)日：2010-11-25
申请号：JP2010172448
申请日：2010-07-30
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO , TOKUMOTO YOSHIYUKI , IFUKU TORU , NAGANUMA TAKUSHI , ARAI KIYOSHI , MAEDA HIDEHO
Abstract: PROBLEM TO BE SOLVED: To reduce formatting time when a disk is ejected, in an optical recording medium that allows data rewriting and has several recording layers.
SOLUTION: Background formatting is performed preferentially from, among a plurality of recording layers, a recording layer where user data is last recorded. For example, when compatibility with a reproduction-only device is required at the time of user data recording only on a first recording layer, in an unrecorded area closer to an inner peripheral side than the tail end position of the user data on the first recording layer, all recording layers need to be formatted (dummy data has been recorded). The background formatting is preferentially performed from the recording layer where the user data is last recorded as described above, only a part of the recording layer for last recording can be formatted during disk eject.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：为了减少磁盘弹出时的格式化时间，在允许数据重写并具有多个记录层的光学记录介质中。 解决方案：优先从多个记录层中执行最后记录用户数据的记录层的背景格式化。 例如，在用户数据记录时仅在第一记录层上需要与仅再现设备的兼容性时，比在第一记录上的用户数据的尾端位置更靠近内周侧的未记录区域 层，所有记录层都需要格式化（已记录虚拟数据）。 从如上所述最后记录用户数据的记录层优先进行背景格式化，在磁盘弹出期间仅可以对用于最后记录的记录层的一部分进行格式化。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2005063589A
公开(公告)日：2005-03-10
申请号：JP2003294261
申请日：2003-08-18
Inventor： KAWAKAMI HIROO , SHISHIDO YUKIO , WATANABE HIROSHI
IPC: G11B20/10 , G11B7/00 , G11B7/0045 , G11B7/007 , G11B7/24 , G11B20/12 , G11B27/00 , G11B27/19 , G11B27/24
CPC classification number: G11B7/24038 , G11B7/00736 , G11B27/19 , G11B27/24 , G11B2007/0013
Abstract: PROBLEM TO BE SOLVED: To realize a proper reproducing operation on a recordable multilayer disk.
SOLUTION: In the case of transfer from a recording layer having user data recorded therein to a next recording layer, in a transfer destination recording layer, recording is first executed in a guard area, and user data is subsequently executed. Alternatively, when the recording start position of the user data in the transfer destination recording layer is known beforehand, a guard area is formed in the transfer destination recording layer before the user data is recorded. That is, in the case of transfer from the recording layer having the user data recorded therein to the next recording layer, by setting the guard area in the section before the recording position of the user data in the transfer destination recording layer, during the reproducing of the user data, a reproducing signal for reproduction preparation is obtained beforehand.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了在可记录的多层盘上实现适当的再现操作。 解决方案：在从其中记录有用户数据的记录层传送到下一个记录层的情况下，在传送目的地记录层中，首先在保护区域中执行记录，随后执行用户数据。 或者，当传送目的地记录层中的用户数据的记录开始位置被预先知道时，在记录用户数据之前在传送目的地记录层中形成保护区域。 也就是说，在从记录有用户数据的记录层转移到下一个记录层的情况下，通过在传送目的地记录层中的用户数据的记录位置之前的部分中设置保护区域，在再现期间 的用户数据，预先获得用于再现准备的再现信号。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2002117613A
公开(公告)日：2002-04-19
申请号：JP2000309610
申请日：2000-10-10
Applicant: SONY CORP
Inventor： IIDA MICHIHIKO , SHISHIDO YUKIO , ONISHI TAKANORI , MIYAKE KUNIHIKO
Abstract: PROBLEM TO BE SOLVED: To properly discriminate disk sizes. SOLUTION: Disk physical information is read out of the optical disk recorded with the disk physical information on the disk surface of the optical disk, and the optical disk is discriminated in accordance with this disk physical information, while the optical disk is rotated at a standard rotating speed. The speed when the optical disk is rotated at a high speed, according to this discriminated optical disk is limited. The size, etc., of the disk are discriminated by utilizing the disk physical information recorded on the disk or measuring the inertia of the disk or the light reflectivity of the disk and the rotating speed of the disk is controlled to an adequate value or below in accordance with this discrimination output. The diameters and shapes of the mounted optical disks may be discriminated exactly, when the various optical disks, such as the optical disks, having a diameter (8 cm) smaller than those of the optical disks having a standard diameter (12 cm) in addition the optical disks, having a standard diameter or the optical disks having a rectangular shape, are mounted at the device.
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公开(公告)号：JP2001167563A
公开(公告)日：2001-06-22
申请号：JP2000299131
申请日：2000-09-29
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , KAWASHIMA TETSUJI , SHISHIDO YUKIO , TSUKATANI SHIGEKI , TOYAMA KATSUMI , INOGUCHI TATSUYA
Abstract: PROBLEM TO BE SOLVED: To provide a data recording medium which has time information of an existing recording medium as well as an address expressed in a binary number and is adaptive to high capacity. SOLUTION: The time information that is expressed in a BCD as a Q channel of a subcode is recorded in an existing CD-ROM and also recorded in a header included in data (Fig. 10A). To that end, a 24-bit address expression part is used. An address expressed in a binary number is recorded at the address expression part included in the header in place of the time information on the BCD (Fig. 10B). Thus, a larger number of addresses can be expressed in comparison with the BCD address expression so as to cope with increase of the disk capacity. In addition, the time of an existing player, etc., can be displayed since the time information is recorded as a subcode.
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65.发明专利
公开(公告)号：JP2001167562A
公开(公告)日：2001-06-22
申请号：JP2000299130
申请日：2000-09-29
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , TOYAMA KATSUMI , SAKO YOICHIRO , INOGUCHI TATSUYA , TSUKATANI SHIGEKI , SHISHIDO YUKIO
IPC: G11B20/12 , G11B7/004 , G11B7/007 , G11B7/09 , G11B7/30 , G11B27/10 , G11B27/19 , G11B27/24 , G11B27/30
Abstract: PROBLEM TO BE SOLVED: To cope with high capacity by performing the binary expression of an address. SOLUTION: A wobbling groove is previously formed on an optical disk and an address is recorded as the wobble information on the wobbling groove. In regard to an existing optical disk, the address of a minute/second frame is expressed in a BCD (Fig. 4A). To that end, a 24-bit address expression part is used, and an address of binary expression is recorded at the address expression part (Fig 4B). Thus, a larger number of addresses can be expressed in comparison with the BCD address expression so as to cope with increase of the disk capacity. Then a disk of high density can be discriminated from an existing disk by means of a single specific bit such as an MSB of the address expression part or plural bits or in accordance with the changing way of an address.
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Patent Agency Ranking
公开(公告)号：JPH11296309A
公开(公告)日：1999-10-29
申请号：JP9574498
申请日：1998-04-08
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO , KAWASHIMA TETSUJI , YASUDA KAZUHIRO , NAKAMURA TADASHI , TSUKADA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To relieve a processing load on a control part and to quickly execute transfer processing by discriminating a cache hit at the time of a data transfer request from an external host equipment and transferring and outputting transfer possible data to the equipment without waiting a transfer indication from a system control part. SOLUTION: When the transfer request from a host computer 100 occurs, a system controller 10 executes reception processing of the transfer request. A buffer manager 21 recognizes respective retrieval condition setting parameters in accordance with the indication of a cache search and executes the search. When it is discriminated that a part or whole of data being a transfer request object cannot be transferred from a cache memory 20 by cache hit discrimination, a buffering operation concerning data which cannot be transferred is controlled in execution and also the transfer output of the data to the host equipment is controlled in accordance with that the data becomes transferable by the buffering operation.
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公开(公告)号：JPH11154374A
公开(公告)日：1999-06-08
申请号：JP32096897
申请日：1997-11-21
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO
Abstract: PROBLEM TO BE SOLVED: To increase output speed of transfer. SOLUTION: A reproducing device performs seek operation when seek from a host computer is instructed, while performs buffering for a cache memory of continuous data from a finish position of seek operation (F103). After that, when transfer of data read out from a seek finish position is required, buffered data may be transferred (F109).
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公开(公告)号：JPH09259513A
公开(公告)日：1997-10-03
申请号：JP9055396
申请日：1996-03-19
Applicant: SONY CORP
Inventor： TAKAZAWA TAKEHARU , SHISHIDO YUKIO
Abstract: PROBLEM TO BE SOLVED: To provide an optical disk-detecting method in an optical disk apparatus whereby a plurality of kinds of optical disks of different track-scanning densities are easily detected. SOLUTION: The method comprises steps of generating reproduction signals by an optical pickup under tracking servo control to an optical disk rotated with a predetermined revolution number, counting edges of track pits based on a change of the reproduction signals (ST6), detecting a track-scanning density of the optical disk based on a measured count of edges during (n) rotations of the optical disk (ST7), and detecting the kind of the optical disk among a plurality of kinds of optical disks of different track-scanning densities (ST8).
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公开(公告)号：JPH06338091A
公开(公告)日：1994-12-06
申请号：JP12616493
申请日：1993-05-27
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO
IPC: G11B11/10 , G11B11/105
Abstract: PURPOSE:To provide the optical disk device and optical rotary recording medium by which the accuracy of a clock signal to be used at the time of reading and writing data on a disk is improved. CONSTITUTION:A trial write pit is recorded in a prescribed timing in a trial write area provide in each sector by a recording control circuit 5. In a position information adding circuit 53 and an averaging circuit 54, the trial pit is read out, and position information is detected from a time difference between peaks of the clock signal and a signal of the sum of trial write pits, and moreover, these bits of position information are added by a prescribed number to calculate an average value. Based on this average value, a comparison is made by a comparator circuit 56 with a reference data recorded in a recording position setting circuit 57, and a coarse adjusting signal is generated so as to make this average value a prescribed value. A variation of the average values is calculated by an average deviation circuit 55, and a fine adjusting signal is generated so as to minimize this numerical value of the variation. Timing of the clock signal is adjusted by controlling a PLL circuit 4 with a recording timing adjusting circuit 58 based on the coarse adjusting signal and the fine adjusting signal.
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公开(公告)号：JPH06338057A
公开(公告)日：1994-12-06
申请号：JP12616593
申请日：1993-05-27
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO
IPC: G11B7/00 , G11B7/0045 , G11B7/24 , G11B19/02 , G11B25/04
Abstract: PURPOSE:To enhance the reliability of data to be recorded on a disk by correcting a pit position in response to the temp. of the disk. CONSTITUTION:A thermistor layer is electrified by a potential difference detecting circuit of a temp. control part 3 via contacts 9, and the temp. of the disk 6 is obtained by measuring voltages at the contacts 9. Laser light intensity control information corresponding to the temp. of the disk 6 is generated by a laser power control circuit, while laser light emitting timing control information corresponding to the temp. of the disk 6 is generated by a laser light emitting timing control circuit, and they are set in a laser/magnetic head control circuit 20. These bits of information are obtained in proper calculation based on temp. information of the disk 6 by reading out a table recorded with control information measured actually in advance, etc., corresponding to the temp. of the disk 6.
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