公开(公告)号：GB2278709B

公开(公告)日：1997-01-15

申请号：GB9409779

申请日：1994-05-16

Applicant: SONY CORP

Inventor： TAGUCHI KEIICHI ,  MAEDA HIDEHO ,  YANAGA MASAHARU

IPC: G11B5/09 ,  G11B5/012 ,  G11B19/04 ,  G11B20/10 ,  G11B20/12 ,  G11B27/034 ,  G11B27/036 ,  G11B27/30 ,  G06F3/06

Abstract: A method and apparatus of reproducing and recording data stored in a plurality of tracks of a memory. A recording and reproducing head reproduces data from at least one of a plurality of tracks of a disk-shaped recording medium. The reproduced data is stored in a memory and rewritten. Data is read out of the memory and controllably supplied to a recording operation of the recording and reproducing head so that data of every track read out from the memory is recorded on the disk-shaped recording medium. In a preferred embodiment, the reproduced data is stored, rewritten read out from the memory in response to an index signal representing a starting portion of a track and then recorded on a magnetic floppy disk.

公开(公告)号：GB2278709A

公开(公告)日：1994-12-07

申请号：GB9409779

申请日：1994-05-16

Applicant: SONY CORP

Inventor： TAGUCHI KEIICHI ,  MAEDA HIDEHO ,  YANAGA MASAHARU

IPC: G11B5/09 ,  G11B5/012 ,  G11B19/04 ,  G11B20/10 ,  G11B20/12 ,  G11B27/034 ,  G11B27/036 ,  G11B27/30 ,  G06F3/06

Abstract: In a floppy disk device all data on the track is memorized in a memory during the first period. When the data is memorized in the memory or after the data was memorized in the memory, data of a desired sector is rewritten. Therefore, even when data is rewritten by a pre-erase head at the sector unit, it can be avoided that an overwrite portion, which is not pre-erased, is produced on the starting portion of the data area to deteriorate the S/N. The apparatus according to the present invention comprises a magnetic head 11 for reading data recorded on a floppy disk, a memory 7 for memorizing data thus read out, and a CPU 4, a bus 5, a floppy disk controller 6 and a drive controller 9 for rewriting designated data when data is memorized in the memory 7 or after data was memorized in the memory 7, supplying the data read out from the memory 7 to the magnetic head 11 and controlling a pre-erase operation of the magnetic head 11 and a recording operation for recording the data from the memory 7 in the floppy disk.

公开(公告)号：JP2007334979A

公开(公告)日：2007-12-27

申请号：JP2006164808

申请日：2006-06-14

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KITANI SATOSHI ,  MAEDA HIDEHO ,  SASAKI TAKASHI

IPC: G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B20/10

CPC classification number: G11B23/284 ,  G11B20/00086 ,  G11B20/00579 ,  G11B20/00927

Abstract: PROBLEM TO BE SOLVED: To prevent one-to-one copy of digital data from an optical recording medium. SOLUTION: Recording is performed for a DVD-R medium having a groove 41 for guiding a light beam and an address pit 42. Positions of recording area in which information conforming to a DVD format is recorded along the groove 41 and destruction area in which a part of a pre-format is to be destroyed are detected, reproducible information of the DVD format is recorded in the recording area using operation of servo, and the destruction area is made an unreadable state by being destroyed by heat of the light beam. Thus, one-to-one copy of digital data is prevented. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：防止来自光学记录介质的数字数据的一对一复制。 解决方案：对于具有用于引导光束的凹槽41和地址凹坑42的DVD-R介质进行记录。沿着凹槽41和破坏区域记录符合DVD格式的信息的记录区域的位置 检测到预格式化部分被破坏的部分，使用伺服操作将DVD格式的可再生信息记录在记录区域中，并且通过光的热量破坏破坏区域而成为不可读状态 光束。 因此，防止数字数据的一对一拷贝。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JPH06333204A

公开(公告)日：1994-12-02

申请号：JP11731893

申请日：1993-05-19

Applicant: SONY CORP

Inventor： TAGUCHI KEIICHI ,  MAEDA HIDEHO ,  YANAGA MASAHARU

IPC: G11B5/09 ,  G11B5/012 ,  G11B19/04 ,  G11B20/10 ,  G11B20/12 ,  G11B27/034 ,  G11B27/036 ,  G11B27/30

Abstract: PURPOSE:To attain good recording of data by supplying data read out of a storage means to a magnetic head and controlling the advance erasing operation of the magnetic head and a recording operation for recording data from the storage means on a magnetic recording medium by a controlling means. CONSTITUTION:A command is supplied from a CPU 4 to a floppy disk controller 6 when data is rewritten and thus, the drive control circuit 9 of a floppy disk drive 8 is controlled by the controller 6. A magnetic head 11 is controlled by a control circuit 9 and data is read from a floppy disk by turning off and on a motor (not shown in the figure) and traveling of the head. The data read by the magnetic head 11 is binarized at a reading/writing amplifier circuit 10 and then, via the drive control circuit 9 it is supplied to the floppy disk controller 6. Serial data from the controller 6 is supplied to the magnetic head by the drive control circuit 9 via the reading/writing amplifier circuit 10.

公开(公告)号：JPH0546924A

公开(公告)日：1993-02-26

申请号：JP20068691

申请日：1991-08-09

Applicant: SONY CORP

Inventor： MAEDA HIDEHO ,  GOTO SATORU

IPC: G11B5/265

Abstract: PURPOSE:To comply with a floppy disk provided with a plurality of track densities by a method wherein a straddle erasure head is formed on a head, for write/readout use, whose gap width corresponds to the track width of a low track density. CONSTITUTION:The title head device is composed of the following: a first head 1, for write/readout use, whose gap width corresponds to the track width of a low track density; and a second head, for write/readout use, whose gap width corresponds to the track width of a high track density. A straddle erasure head 3 is formed on the first head 1. Thereby, the title head device can comply with a floppy disk provided with a plurality of track densities (widths), the title head device can be mass-produced and the production cost of the title head device can be reduced.

公开(公告)号：JP2006338771A

公开(公告)日：2006-12-14

申请号：JP2005161430

申请日：2005-06-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KAWASHIMA TETSUJI ,  SHISHIDO YUKIO ,  TOKUMOTO YOSHIYUKI ,  IFUKU TORU ,  NAGANUMA TAKUSHI ,  ARAI KIYOSHI ,  MAEDA HIDEHO

IPC: G11B20/12 ,  G11B7/0045 ,  G11B7/007

Abstract: PROBLEM TO BE SOLVED: To enable grasping quickly a format situation of a whole disk in an optical disk recording medium in which data can be rewritten and which has a recording layer being multi-layers. SOLUTION: A formatting bit map managing parts of format/unformatted in a whole recording layer is recorded for one recording layer. Movement between layers can be made unnecessary when a format situation of the whole disk is grasped, thereby, grasping the format situation of the whole disk can be performed quickly. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了能够快速掌握能够重写数据的光盘记录介质中的整个盘的格式情况，并且具有多层的记录层。 解决方案：对于一个记录层记录管理整个记录层中的格式/未格式化的部分的格式化位图。 当抓住整个盘的格式状况时，可以不需要层之间的移动，从而可以快速地执行整个盘的格式化。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006338770A

公开(公告)日：2006-12-14

申请号：JP2005161429

申请日：2005-06-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KAWASHIMA TETSUJI ,  SHISHIDO YUKIO ,  TOKUMOTO YOSHIYUKI ,  IFUKU TORU ,  NAGANUMA TAKUSHI ,  ARAI KIYOSHI ,  MAEDA HIDEHO

IPC: G11B7/0055 ,  G11B7/007

CPC classification number: G11B7/00736 ,  G11B7/00454 ,  G11B7/24038 ,  G11B20/1217 ,  G11B2020/1228 ,  G11B2020/1231 ,  G11B2020/1288 ,  G11B2020/1297 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/235 ,  G11B2220/257

Abstract: PROBLEM TO BE SOLVED: To shorten a formatting time required at the time of discharging a disk in an optical disk recording medium in which data can be rewritten and which has a recording layer being multi-layers. SOLUTION: In this recording method, background format is performed preferentially from a recording layer in which recording of user data is to be performed last out of a plurality of recording layers. For example, when interchangeability with a reproduction exclusive apparatus is requested at the point of time at which recording of the user is performed in only a first recording layer, it is required that format (recording of dummy data) is performed in all recording layers in an unrecorded region of an inner periphery side more than a terminal position of the user data in the first recording layer, a part in which format is to be performed in a recording layer in which recording is to be performed last can be decreased at the time of discharging the disk by performing background format preferentially from the recording layer in which recording is to be performed last. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：缩短在其中可以重写数据并且具有多层记录层的光盘记录介质中的盘的放电时所需的格式化时间。 解决方案：在该记录方法中，优先从要在多个记录层中执行用户数据的记录的记录层执行背景格式。 例如，当在仅在第一记录层中执行用户记录的时间点请求与再现专用装置的可互换性时，需要在所有记录层中执行格式（伪数据的记录） 在第一记录层中的用户数据的终端位置以上的内周侧的未记录区域，在最后要执行记录的记录层中要进行格式的部分可以在此时减少 通过从最后执行记录的记录层优先执行背景格式来排出磁盘。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JPH0963069A

公开(公告)日：1997-03-07

申请号：JP21774795

申请日：1995-08-25

Applicant: SONY CORP

Inventor： IIDA MICHIHIKO ,  MAEDA HIDEHO

IPC: G11B21/08 ,  G11B7/085

Abstract: PROBLEM TO BE SOLVED: To broaden the range of a track jump and to quickly position an optical pickup to a track center. SOLUTION: The number of tracks until a target position to which an optical pickup 10 is to be positioned is calculated with a system controller 15 and when the number of tracks is larger than a prescribed number, the number of tracks is calculated in the controller and the optical pickup 10 is made to be moved at high speed by this number of tracks in a stationary fast feeding exciting mode by a stepping motor 9. Then, when the number of tracks is smaller than the prescribe number, the optical pickup 10 is made to be moved at a lower speed than that of the stationary fast movement with a microstep driving by the number of tracks in a fast trace exciting mode by the stepping motor 9.

公开(公告)号：JPH05234005A

公开(公告)日：1993-09-10

申请号：JP6100192

申请日：1992-02-18

Applicant: SONY CORP

Inventor： GOTO SATORU ,  TAGUCHI KEIICHI ,  ITO WATARU ,  MAEDA HIDEHO

IPC: G11B5/09 ,  G11B20/10

Abstract: PURPOSE:To compensate a peak shift effectively by utilizing a serial data series whose peak shift corrected for the floppy disk drive of a floppy disk device. CONSTITUTION:A pulse interval between a noticing pulse in the serial data column and pulses neighboring it are discriminated by a pulse interval measurement circuit 2, a shift register 3 and a comparison circuit 4. In accordance with the result of this discrimination, each noticing pulse delayed by 0 to 2 times of a delaying amount alpha by delay circuits 5, 6 is selected by a selection switch 8.

公开(公告)号：JP2002170327A

公开(公告)日：2002-06-14

申请号：JP2000363660

申请日：2000-11-29

Applicant: SONY CORP

Inventor： TAKASE TSUNEMITSU ,  SASAKI TAKASHI ,  MISAIZU TADAYUKI ,  MAEDA HIDEHO

IPC: G11B20/10 ,  G11B19/04 ,  G11B19/12

Abstract: PROBLEM TO BE SOLVED: To realize a recorder which brings a marked improvement in use efficiency to users and a method for the same as well as a recording medium. SOLUTION: The recorder for writing first information to a disk-like recording medium and the method for the same as well as the recording medium are provided with an information adding means for adding second information to the prescribed recording region of the disk-like recording medium according to a command from outside and a judging means for judging whether the second information is added to the recording region or not when the device is loaded with the disk-like recording medium. The judging means prohibits writing of the first information to the disk-like recording medium when the means judges that the second information is added.