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公开(公告)号：US20180047424A1
公开(公告)日：2018-02-15
申请号：US15652787
申请日：2017-07-18
Inventor： Kohei NAKATA , Harumitsu MIYASHITA
IPC: G11B20/12
CPC classification number: G11B20/1217 , G11B2020/122 , G11B2020/1278
Abstract: An optical disk includes a disk management information area in which predetermined information is recorded in advance, and a recording system area in which information for identifying a recording system of the optical disk recorded in a predetermined position within a non-data area included in a recordable area is recorded. A method for accessing the optical disk is decided based on disk management information and the information for identifying a recording system.
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2.发明申请公开(公告)号：US20160293200A1
公开(公告)日：2016-10-06
申请号：US14666488
申请日：2014-08-20
Inventor： Kohei NAKATA , Yasumori HINO , Harumitsu MIYASHITA , Junichi MINAMINO , Yoshihisa TAKAHASHI
IPC: G11B7/005 , G11B7/2407 , G11B20/12 , G11B7/0045
CPC classification number: G11B7/0053 , G11B7/0037 , G11B7/0045 , G11B7/00718 , G11B7/00736 , G11B7/0079 , G11B7/2407 , G11B7/24082 , G11B20/1217 , G11B20/1252 , G11B2007/00754 , G11B2020/1242 , G11B2020/1268 , G11B2020/1277 , G11B2020/1294
Abstract: A track of an optical disk is formed by wobbling and divided into zones, a clock ratio of a recording clock to a wobble clock is preset for each zone, a wobble signal is detected from the optical disk, the wobble clock is generated from the wobble signal, a present position is identified by reproducing ADIP indicating a position of the track from the wobble signal and the wobble clock, the recording clock is generated with respect to the wobble clock, a data address present position is identified from the present position, a start end position of the ADIP in a recording target zone, a start end position of the data address in the recording target zone, and the clock ratio, a recording start position is identified based on the data address present position; and the data is recorded from the recording start position of the recording target zone.
Abstract translation: 通过摆动形成光盘的轨道并将其划分为区域，为每个区域预设记录时钟与摆动时钟的时钟比，从光盘检测摆动信号，从摆动产生摆动时钟 信号，通过从摆动信号和摆动时钟再现指示轨道的位置的ADIP来识别当前位置，相对于摆动时钟产生记录时钟，从当前位置识别数据地址存在位置， 记录目标区域中的ADIP的开始结束位置，记录目标区域中的数据地址的开始结束位置和时钟比，基于数据地址存在位置来识别记录开始位置; 并且从记录目标区域的记录开始位置记录数据。
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3.发明申请公开(公告)号：US20170103780A1
公开(公告)日：2017-04-13
申请号：US15286324
申请日：2016-10-05
Inventor： Kohei NAKATA , Harumitsu MIYASHITA , Naohiro KIMURA
CPC classification number: G11B7/00718 , G11B7/0037 , G11B7/0053 , G11B7/00736 , G11B7/00745 , G11B7/0938 , G11B20/1217 , G11B20/24 , G11B2020/1225 , G11B2020/1229 , G11B2020/1238 , G11B2020/1264 , G11B2020/1277 , G11B2020/1287 , G11B2020/1292 , G11B2020/1298
Abstract: There are provided an optical disk and an optical disk recording method which are capable of stable data reading in a case where a recording linear density is increased. According to an optical disk of the present disclosure, a run-in pattern recorded in a groove track and a run-in pattern recorded in a land track are made different patterns so that no great change is caused in the amplitude of an acquired signal due to interference between adjacent recording patterns, and thus, data may be stably read.
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公开(公告)号：US20160163347A1
公开(公告)日：2016-06-09
申请号：US14958857
申请日：2015-12-03
Inventor： Harumitsu MIYASHITA , Akihito YOSHIMI , Yoshihisa TAKAHASHI
IPC: G11B7/007
CPC classification number: G11B7/00375 , G11B7/0037 , G11B7/0079 , G11B7/08505 , G11B7/09 , G11B7/094 , G11B7/0945 , G11B7/095 , G11B7/268 , G11B19/041 , G11B19/048 , G11B2020/1242
Abstract: An information recording and playback device includes a recording and playback unit, and a controller. The controller divides a recording area of an optical disk into a first recording area which is at an inner circumference side, and a second recording area which is at an outer circumference side. The controller controls the recording and playback unit such that the unit records or plays back data in the first recording area at a first speed, and records or plays back data in the second recording area at a second speed slower than the first speed. The predetermined radius is set to a boundary between an area in which a control residual exceeds a predetermined reference value when servo control related to focusing and tracking is performed on the recording area of the optical disk, and an area in which the control residual does not exceed the predetermined reference value.
Abstract translation: 信息记录和重放装置包括记录和重放单元和控制器。 控制器将光盘的记录区域划分成内圆周侧的第一记录区域和位于外周侧的第二记录区域。 控制器控制记录和重放单元，使得单元以第一速度记录或重放第一记录区域中的数据，并以比第一速度慢的第二速度在第二记录区域中记录或重放数据。 当对光盘的记录区域执行与聚焦和跟踪相关的伺服控制时，将预定半径设置为控制剩余超过预定基准值的区域之间的边界，以及控制剩余不在 超过预定的参考值。
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公开(公告)号：US20160111121A1
公开(公告)日：2016-04-21
申请号：US14984143
申请日：2015-12-30
Inventor： Junichi MINAMINO , Harumitsu MIYASHITA , Kohei NAKATA
IPC: G11B7/007
CPC classification number: G11B7/00718 , G11B7/0053 , G11B7/007 , G11B7/00745 , G11B7/24079 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/1217 , G11B27/3027 , G11B2007/00754
Abstract: An optical disc medium includes a land and a groove at which information can be recorded. A predetermined number of address information units which record address information of the land or groove are provided in a circumferential direction of the optical disc medium. The address information unit of the land includes three or more address recording areas capable of recording address information. The address information is recorded on one area selected from among the three or more address recording areas. The address information unit of the land has address information which is recorded, in the same modulation, on the side of the inner adjacent groove and on the side of the outer adjacent groove. The one area to be selected from among the three or more address recording areas for recording the address information of the land is different among three address information units adjacently arranged in a radial direction.
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Patent Agency Ranking
公开(公告)号：US20180102139A1
公开(公告)日：2018-04-12
申请号：US15427643
申请日：2017-02-08
Inventor： Harumitsu MIYASHITA , Yasumori HINO , Junichi MINAMINO , Tsutomu KAI
CPC classification number: G11B20/1816 , G11B7/0037 , G11B7/00375 , G11B7/0948 , G11B19/041 , G11B20/10314 , G11B20/18
Abstract: An inspection method for a recordable optical disc includes focusing laser light on a recording layer and obtaining a data signal dependent on the laser light reflected by the recording layer. The inspection method also includes determining whether the optical disc includes a defect or not by identifying a first period every second period in the obtained data signal obtained, the first period being a period in which a signal level of the data signal is lower than a predetermined value, and each of the second periods corresponding to an ECC block, and outputting a result of the determination.
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公开(公告)号：US20150179207A1
公开(公告)日：2015-06-25
申请号：US14641936
申请日：2015-03-09
Inventor： Junichi MINAMINO , Harumitsu MIYASHITA , Kohei NAKATA
CPC classification number: G11B7/00718 , G11B7/0053 , G11B7/007 , G11B7/00745 , G11B7/24079 , G11B7/24082 , G11B7/24085 , G11B20/10 , G11B20/1217 , G11B27/3027 , G11B2007/00754
Abstract: An optical disc medium includes a land and a groove at which information can be recorded. A predetermined number of address information units which record address information of the land or groove are provided in a circumferential direction of the optical disc medium. The address information unit of the land includes three or more address recording areas capable of recording address information. The address information is recorded on one area selected from among the three or more address recording areas. The address information unit of the land has address information which is recorded, in the same modulation, on the side of the inner adjacent groove and on the side of the outer adjacent groove. The one area to be selected from among the three or more address recording areas for recording the address information of the land is different among three address information units adjacently arranged in a radial direction.
Abstract translation: 光盘介质包括可以记录信息的平台和凹槽。 在光盘介质的圆周方向上设置预定数量的地址信息单元，其记录地面或凹槽的地址信息。 地面的地址信息单元包括能够记录地址信息的三个以上的地址记录区域。 地址信息被记录在从三个或更多个地址记录区域中选择的一个区域上。 陆地的地址信息单元具有在相同的调制中在内相邻槽的侧面和外相邻槽的一侧记录的地址信息。 从用于记录土地的地址信息的三个或更多个地址记录区域中选择的一个区域在径向相邻地布置的三个地址信息单元中是不同的。
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公开(公告)号：US20190279676A1
公开(公告)日：2019-09-12
申请号：US16292515
申请日：2019-03-05
Inventor： Harumitsu MIYASHITA , Naohiro KIMURA
IPC: G11B7/0037 , G11B7/0055
Abstract: In an information recording device, when receiving an erase command by a receiver, a controller erases data of an erased area by overwriting data in an information area, to corrupt the data in the information area, using an erasing pattern. The erased area is specified by an erase start position and a size of the data to be erased on the optical disc. The data in the information area is arranged as partial data in a series of data arranged in a direction of internal parity of error correction so that correction is disabled in both of a correction processing by the internal parity of the error correction and a correction processing by external parity of the error correction when the data in the information area is overwritten using the erasing pattern.
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公开(公告)号：US20160217819A1
公开(公告)日：2016-07-28
申请号：US14991239
申请日：2016-01-08
Inventor： Kohei NAKATA , Harumitsu MIYASHITA
IPC: G11B7/007 , G11B7/0045
CPC classification number: G11B7/0079 , G11B7/00736 , G11B7/00745 , G11B7/24079 , G11B7/24085 , G11B20/1217 , G11B27/3027 , G11B2007/0013 , G11B2007/00754
Abstract: According to an optical disc, a track, where data is recorded in predetermined block units, is formed by wobbling at a spatial period in accordance with a radial position, and the track is divided into zones in a radial direction. Data is recorded in each of the zones at a predetermined line density based on a ratio n/m of the number of bits of a bit pattern of recording data to one wavelength of wobbling. The optical disc includes a first area having one of the zones, a second area having one of the zones different from the one of the zones in the first area, and a line density of data different from a line density of data in the first area, and a BCA where a zone format identifier specifying a zone table defining a boundary position of each of the zones and the ratio n/m is recorded.
Abstract translation: 根据光盘，以预定的块单位记录数据的轨迹是通过在空间周期上根据径向位置进行摆动而形成的，并且轨道被分成径向方向的区域。 基于记录数据的比特模式的比特数与摆动波长的比率n / m，将数据以预定的线密度记录在每个区域中。 光盘包括具有其中一个区域的第一区域，具有与第一区域中的一个区域不同的区域中的一个区域的第二区域和与第一区域中的数据的线密度不同的数据线密度 以及BCA，其中记录了指定限定每个区域的边界位置的区域表格和比率n / m的区域格式标识符。
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公开(公告)号：US20190237102A1
公开(公告)日：2019-08-01
申请号：US16260837
申请日：2019-01-29
Inventor： Naohiro KIMURA , Harumitsu MIYASHITA
IPC: G11B7/007 , G11B7/24094 , G11B7/28
Abstract: An optical disc recording device includes a data acquisition unit configured to acquire bitmap data corresponding to image information, an address information acquisition unit configured to acquire address information set in wobbles of an optical disc by wobble synchronization from the optical disc, a recording position determining unit configured to determine a recording position on the optical disc for recording the bitmap data using the address information, and a mark recording unit configured to form a recording mark corresponding to the bitmap data on the information recording track of the optical disc by applying a light beam having recording power to the recording position on the optical disc.
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