公开(公告)号：US20030072241A1

公开(公告)日：2003-04-17

申请号：US10183862

申请日：2002-06-25

发明人： Ippei Ogawa

IPC分类号： G11B007/0045 ,  G11B007/24

CPC分类号： G11B7/006 ,  G11B7/00454 ,  G11B7/0062 ,  G11B7/0938 ,  G11B7/24079 ,  G11B7/24082 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10T428/21

摘要： A phase-change optical information recording medium including a substrate and a recording layer provided on the substrate, the recording layer including a phase-change recording material capable of recording information, reproducing recorded information, and erasing recorded information reversibly with reversible phase changes in the phase-change recording material, with successive formation of a recording mark with a low reflectivity and a length of at least one unit extending in an optical recording scanning direction, and a space with a high reflectivity and a length of at least one unit extending in the optical recording scanning direction, wherein information is recorded by a plurality of signals being recorded in the recording layer, each signal constituting a recording mark area including a recording initiation marking portion with (a) a length of at least two times a minimum length of the recording mark and (b) a width (W1) of at least 1.1 times an average width (W2) of the other portion of the recording mark area.

公开(公告)号：US06545962B2

公开(公告)日：2003-04-08

申请号：US10075611

申请日：2002-02-15

申请人： Harukazu Miyamoto ,  Yoshio Suzuki ,  Motoyuki Suzuki ,  Hisataka Sugiyama ,  Hiroyuki Minemura ,  Tetsuya Fushimi ,  Nobuhiro Tokushuku

发明人： Harukazu Miyamoto ,  Yoshio Suzuki ,  Motoyuki Suzuki ,  Hisataka Sugiyama ,  Hiroyuki Minemura ,  Tetsuya Fushimi ,  Nobuhiro Tokushuku

IPC分类号： G11B700

CPC分类号： G11B20/12 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/006 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/013 ,  G11B7/0938 ,  G11B7/24082 ,  G11B19/20 ,  G11B19/247 ,  G11B19/28 ,  G11B20/10009 ,  G11B27/19 ,  G11B27/24 ,  G11B27/28 ,  G11B27/3027

摘要： An optical reproducing method for reproducing information on an optical medium, including a disk-like substrate, a spiral or concentric-shaped groove structure along tracks formed on the disk-like substrate with each of the tracks being divided into a plurality of units including a dropout portion in a circumferential direction of the groove structure. The dropout portion is a non-groove portion. The groove structure is formed with a wobble in a fixed cycled in a radial direction with the fixed cycle of the wobble continuing in the circumferential direction along the track. Each length of the units is an integer multiple of the cycle of the wobble. The method includes irradiating an optical spot on the optical medium, detecting a reflected beam from the optical medium, and reproducing information on the optical medium by using a signal obtained by the reflected beam.

摘要翻译： 一种用于在光盘介质上再现信息的光学再现方法，该光学介质包括盘状基片，螺旋形或同心形的沟槽结构，沿着形成在盘状基片上的轨道，每个轨道被分成多个单元， 凹槽结构的圆周方向上的脱落部。 脱落部是非槽部。 凹槽结构形成为具有在径向上固定循环的摆动，其中摆动的固定周期沿着轨道在圆周方向上延续。 单位的每个长度是摆动周期的整数倍。 该方法包括在光学介质上照射光点，检测来自光学介质的反射光束，并通过使用由反射光束获得的信号在光学介质上再现信息。

公开(公告)号：US06542458B2

公开(公告)日：2003-04-01

申请号：US10075612

申请日：2002-02-15

申请人： Harukazu Miyamoto ,  Yoshio Suzuki ,  Motoyuki Suzuki ,  Hisataka Sugiyama ,  Hiroyuki Minemura ,  Tetsuya Fushimi ,  Nobuhiro Tokushuku

发明人： Harukazu Miyamoto ,  Yoshio Suzuki ,  Motoyuki Suzuki ,  Hisataka Sugiyama ,  Hiroyuki Minemura ,  Tetsuya Fushimi ,  Nobuhiro Tokushuku

IPC分类号： G11B724

CPC分类号： G11B20/12 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/0053 ,  G11B7/006 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0079 ,  G11B7/013 ,  G11B7/0938 ,  G11B7/24082 ,  G11B19/20 ,  G11B19/247 ,  G11B19/28 ,  G11B20/10009 ,  G11B27/19 ,  G11B27/24 ,  G11B27/28 ,  G11B27/3027

摘要： An information recording medium including a disk-like substrate with a plurality of tracks extending in a circumferential direction on the disk-like substrate and associated with a plurality of grooves. The grooves are wobbled in a radial direction of the disk-like substrate and each track is divided into a plurality of recording units of circular arc shape extending in the circumferential direction. A zone is provided which includes at least two recording units which are adjacent each other in the radial direction, and radially adjacent recording units of a respective zone are delimited by a pair of radial lines, and central angles formed by the recording units are constant within one zone.

摘要翻译： 一种信息记录介质，包括具有多个轨道的圆盘状基板，所述多个轨道在圆盘状基板上沿圆周方向延伸并且与多个凹槽相关联。 凹槽在圆盘状基片的径向方向上摆动，并且每个轨道被分成沿圆周方向延伸的多个圆弧形记录单元。 提供了一个区域，其包括在径向上彼此相邻的至少两个记录单元，并且各个区域的径向相邻记录单元由一对径向线限定，并且由记录单元形成的中心角度在 一个区域。

公开(公告)号：US06529466B2

公开(公告)日：2003-03-04

申请号：US10020211

申请日：2001-12-18

申请人： Hideki Saga ,  Hirofumi Sukeda ,  Takehiko Yorozu

发明人： Hideki Saga ,  Hirofumi Sukeda ,  Takehiko Yorozu

IPC分类号： G11B700

CPC分类号： G11B7/00456 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/126 ,  G11B11/1053 ,  G11B11/10595

摘要： An information recording apparatus for recording data by applying energy to a recording medium to form thereon local physical changes of the medium includes a total energy irradiating amount discriminating unit for discriminating a total energy irradiating amount of each mark and each space when data is recorded, and a recording energy irradiating unit for switching between at least two levels of the total energy irradiating amount during a mark non-forming period, in accordance with results discriminated by the total energy irradiating amount discriminating unit. The at least two levels may be at least two mutually different levels.

公开(公告)号：US20030039192A1

公开(公告)日：2003-02-27

申请号：US10270543

申请日：2002-10-16

发明人： Makoto Miyamoto ,  Tsuyoshi Toda ,  Masatoshi Ohtake ,  Motoyasu Terao ,  Junko Ushiyama ,  Keikichi Andoo ,  Yumiko Anzai ,  Akemi Hirotsune ,  Tetsuya Nishida ,  Hideki Saga

IPC分类号： G11B007/0045

CPC分类号： G11B7/0062 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/126 ,  G11B20/10009 ,  G11B20/1426

摘要： A method for recording information is disclosed in which an information recording medium is irradiated with a recording energy beam power-modulated into at least a record power level and a record-ready power level lower than the record power level. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. Also, only in the case where the energy beam is modulated by the power lower in power level than the record-ready power level after the last pulse of the energy beam pulse train including at least one pulse for forming a mark portion and the mark portion is followed by a space portion of a predetermined length, the particular radiation energy of low power level is reduced as compared with when the mark portion is followed by a space potion of a different length. The radiation energy is increased and/or decreased.

公开(公告)号：US20030031102A1

公开(公告)日：2003-02-13

申请号：US10261982

申请日：2002-09-30

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Kenji Narumi ,  Kenichi Nishiuchi

IPC分类号： G11B007/0045

CPC分类号： H03M13/2789 ,  G11B7/0045 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B20/10212 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/1251 ,  G11B20/1403 ,  G11B20/18 ,  G11B20/1866 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/329 ,  G11B2020/10888 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1277 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537 ,  H03M13/00 ,  H03M13/27

摘要： An apparatus for writing on and reading an overwritable optical disk comprises an identifier detector that identifies a recording condition in the sector to be overwritten, and a delay time controller circuit that sets a variation range of the start point for writing according to the recording condition. The record timing of the modulated data signal is changed at random within the set variation range when overwriting the sector of the optical disk.

公开(公告)号：US20030002406A1

公开(公告)日：2003-01-02

申请号：US10136068

申请日：2002-05-01

发明人： Hironori Deguchi ,  Makoto Usui ,  Kohei Nakata

IPC分类号： G11B007/0045

CPC分类号： G11B7/0045 ,  G11B7/0053 ,  G11B7/006 ,  G11B20/10009 ,  G11B20/1217 ,  G11B2020/1274 ,  G11B2020/1277 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/215 ,  G11B2220/216 ,  G11B2220/2562

摘要： An optical disc apparatus includes a recording section for recording new data on an optical disc so as to be continuous to data which is previously recorded on the optical disc; a detection section for detecting an amount of deviation between a position at which the previously recorded data is recorded and a position at which the previously recorded data should have been recorded; and an adjustment for adjusting a position at which the new data is to be recorded so that an amount of deviation between a position at which an end of the new data is to be recorded and a position at which the end of the new data should be recorded is smaller than the amount of deviation detected by the detection section.

摘要翻译： 一种光盘装置，包括：记录部分，用于将新数据记录在光盘上，以便与先前记录在光盘上的数据连续; 检测部分，用于检测记录先前记录的数据的位置与先前记录的数据应被记录的位置之间的偏差量; 以及用于调整要记录新数据的位置的调整，使得要记录新数据的结尾的位置与新数据的结束位置之间的偏差量 记录的数据小于由检测部件检测到的偏差量。

公开(公告)号：US06480452B2

公开(公告)日：2002-11-12

申请号：US10105252

申请日：2002-03-26

申请人： Yasushi Miyauchi ,  Motoyasu Terao ,  Akemi Hirotsune ,  Hiroyuki Minemura ,  Harukazu Miyamoto

发明人： Yasushi Miyauchi ,  Motoyasu Terao ,  Akemi Hirotsune ,  Hiroyuki Minemura ,  Harukazu Miyamoto

IPC分类号： G11B576

CPC分类号： G11B7/126 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/00745 ,  G11B7/013 ,  G11B7/24 ,  G11B20/1217 ,  G11B2020/10898 ,  G11B2020/1232 ,  G11B2020/1277 ,  G11B2020/1287 ,  G11B2020/1288 ,  G11B2020/1298 ,  G11B2220/216 ,  G11B2220/2537

摘要： A recording medium having a dummy signal area on at least one side of a recording area is used and information is recorded with a dummy signal added to at least one of the leading and trailing sides in the recorded information signal. The user data area remains unaffected by repeated overwriting so that recorded user data is reproduced correctly. In particular, the wave form distortion caused by fluidization of a recording film remains at the dummy signal area and does not affect the user data area, so that the reproduction of the target information (user data) is assured.

公开(公告)号：US20020160304A1

公开(公告)日：2002-10-31

申请号：US09791322

申请日：2001-02-22

申请人： Eastman Kodak Company

发明人： Yuan-Sheng Tyan ,  Thomas R. Cushman ,  Giuseppe Farruggia ,  George R. Olin ,  Bruno Primerano ,  Fridrich Vazan ,  James A. Barnard

IPC分类号： G11B007/24 ,  B32B003/02

CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/24 ,  G11B7/2534 ,  G11B7/2585 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

摘要： A WORM optical recording element includes a substrate; an amorphous phase-change recording layer disposed over the substrate; a dielectric layer disposed adjacent to the amorphous phase-change layer; a reflector layer disposed adjacent to the dielectric layer; and wherein the material and the thickness of the layers are selected such that recording can be performed on the optical recording element by using a focused laser beam to form crystalline marks in the phase-change layer using laser pulses with less than 40 nS in duration, the reflectivity of the amorphous phase as measured by a collimated beam is higher than 28% and the contrast of the read-back signal is higher than 0.6, and the second and subsequent writing over previous recording results in at least a 50% increase in read out jitter.

公开(公告)号：US20020141324A1

公开(公告)日：2002-10-03

申请号：US10108912

申请日：2002-03-28

发明人： Takashi Nagano ,  Koji Suzuki ,  Katsuichi Osakabe

IPC分类号： G11B007/125

CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/006

摘要： A strategy process used for recording data on an optical disk is also used during DC erase is performed. Effects similar to those obtained in the case, in which a high frequency signal is superposed on a laser diode output current during the DC erase, can be obtained by performing the strategy process on the laser diode output current during the DC erase. This eliminates the necessity for generating high-level and high-frequency signals. Consequently, an apparatus can be constructed at low cost.

摘要翻译： 在执行DC擦除期间，还使用用于在光盘上记录数据的策略处理。 可以通过在直流擦除期间对激光二极管的输出电流进行策略处理，而获得与在直流擦除期间将激光二极管输出电流叠加在高频信号中的情况相同的效果。 这消除了产生高电平和高频信号的必要性。 因此，可以以低成本构造设备。