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119 条记录 (耗时 0.033 秒)

    Focusing time period and power control of a multilaser diode array
    45.
    发明授权
    Focusing time period and power control of a multilaser diode array 失效
    聚焦时间段和多极二极管阵列的功率控制

    公开(公告)号：US5671209A

    公开(公告)日：1997-09-23

    申请号：US559432

    申请日：1995-11-15

    申请人： Yuichi Kamioka ,  Kenji Koishi ,  Daisuke Ogata ,  Shigeru Furumiya

    发明人： Yuichi Kamioka ,  Kenji Koishi ,  Daisuke Ogata ,  Shigeru Furumiya

    IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/09 ,  G11B7/125 ,  G11B7/14 ,  H01S5/0683 ,  H01S5/40

    CPC分类号： G11B7/126 ,  H01S5/0683 ,  G11B7/0908 ,  G11B7/14 ,  H01S5/4025

    摘要： A method for controlling intensities of a plurality of laser beams respectively emitted on a track of an optical disk by a plurality of laser diodes according to the present invention includes a step of performing focusing servo control for focusing one of the plurality of laser beams emitted by one of the plurality of laser diodes onto the track, and concurrently controlling an intensity of the laser beam emitted by each of plurality of laser diodes to be within a predetermined range by comparing a signal which is in accordance with an intensity of the laser beam emitted by that laser beam with a reference signal. A period during which the one of the plurality of laser diodes used for the focusing does not emit the one laser beam is shorter than a response time of the focus servo control.

    摘要翻译： 根据本发明的用于控制由多个激光二极管分别发射在光盘的轨道上的多个激光束的强度的方法包括以下步骤：执行聚焦伺服控制以聚焦由 将多个激光二极管中的一个放射到轨道上，并且通过比较与发射的激光束的强度相对应的信号，同时将由多个激光二极管中的每一个发射的激光束的强度控制在预定范围内 该激光束具有参考信号。 用于聚焦的多个激光二极管中的一个不发射一个激光束的周期比聚焦伺服控制的响应时间短。

    Optical data recording method
    47.
    发明授权
    Optical data recording method 有权
    光学数据记录方法

    公开(公告)号：US08023380B2

    公开(公告)日：2011-09-20

    申请号：US12339708

    申请日：2008-12-19

    申请人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    发明人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    IPC分类号： G11B7/00

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc. In the optical data recording method, at least two of the plurality of recording marks comprises: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code.

    摘要翻译： 该光学数据记录方法包括以下步骤：调制要记录的数据，以产生多个记录调制码; 并向光盘发射脉冲状光束，使得在光盘上形成具有与多个记录调制码对应的长度的多个记录标记和空间。 在光学数据记录方法中，多个记录标记中的至少两个记录标记包括：设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成尾部的最后脉冲 记录标记的边缘，以及设置在第一脉冲和最后脉冲之间并形成记录标记的中心的多脉冲串。 多脉冲串具有长于T的脉冲周期，其表示记录调制码的参考周期。

    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method
    49.
    发明授权
    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method 有权
    记录方法和具有由预定调制方法定义的长度的标记和间隔的介质

    公开(公告)号：US07489613B2

    公开(公告)日：2009-02-10

    申请号：US11842189

    申请日：2007-08-21

    申请人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    发明人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    IPC分类号： G11B7/0045

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： A data storage medium is provided on which data is to be recorded by modulating the data to generate a plurality of recording modulation codes and irradiating a pulse-like light beam to the data storage medium, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the data storage medium. At least two of the plurality of recording marks are formed by the light beam emitted according to a recording pulse train. The recording pulse train comprising a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code. The plurality of recording marks have different lengths represented by T with each other. A number of pulses in each of the recording pulse trains is increased by one as the recording mark is increased in length by 2T. A shortest recording mark and a second shortest recording mark are constituted of a single pulse, respectively.

    摘要翻译： 提供数据存储介质，通过对数据进行调制以产生多个记录调制码并将脉冲状光束照射到数据存储介质上，从而使多个记录标记和空间具有 对应于多个记录调制码的长度形成在数据存储介质上。 多个记录标记中的至少两个由根据记录脉冲序列发射的光束形成。 记录脉冲串包括设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成记录标记的后沿的最后脉冲和多脉冲串， 设置在第一脉冲和最后脉冲之间并形成记录标记的中心。 多脉冲串具有长于T的脉冲周期，其表示记录调制码的参考周期。 多个记录标记具有由T表示的彼此不同的长度。 随着记录标记的长度增加2T，每个记录脉冲串中的脉冲数增加1个。 最短记录标记和第二最短记录标记分别由单个脉冲构成。

    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method
    50.
    发明授权
    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method 有权
    记录方法和具有由预定调制方法定义的长度的标记和间隔的介质

    公开(公告)号：US07489612B2

    公开(公告)日：2009-02-10

    申请号：US11842185

    申请日：2007-08-21

    申请人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    发明人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    IPC分类号： G11B7/0045

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： A data storage medium is provided on which data is to be recorded by modulating the data to generate a plurality of recording modulation codes and irradiating a pulse-like light beam to the data storage medium, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the data storage medium. The data storage medium comprises a disc information area that includes a region on which at least one of an irradiation information of the light beam to form the recording marks and a constitution information of the recording mark is to be recorded. At least two of the plurality of recording marks are formed by the light beam emitted according to a recording pulse train. The recording pulse train comprises a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code. The plurality of recording marks have different lengths represented by T with each other. A number of pulses in each of the recording pulse trains is increased by one as the recording mark is increased in length by 2T. A shortest recording mark and a second shortest recording mark are constituted of a single pulse, respectively. Each of the multi-pulse trains has an equal pulse width and pulse interval in the plurality of recording marks.

    摘要翻译： 提供数据存储介质，通过对数据进行调制以产生多个记录调制码并将脉冲状光束照射到数据存储介质上，从而使多个记录标记和空间具有 对应于多个记录调制码的长度形成在数据存储介质上。 数据存储介质包括盘信息区，其包括要在其上记录形成记录标记的光束的照射信息和记录标记的结构信息中的至少一个的区域。 多个记录标记中的至少两个由根据记录脉冲序列发射的光束形成。 记录脉冲串包括设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成记录标记的后沿的最后脉冲和多脉冲串，其中 设置在第一脉冲和最后脉冲之间并形成记录标记的中心。 多脉冲串具有长于T的脉冲周期，其表示记录调制码的参考周期。 多个记录标记具有由T表示的彼此不同的长度。 随着记录标记的长度增加2T，每个记录脉冲串中的脉冲数增加1个。 最短记录标记和第二最短记录标记分别由单个脉冲构成。 每个多脉冲串在多个记录标记中具有相等的脉冲宽度和脉冲间隔。