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61. 发明授权

US06680888B2 Information recording/reproducing apparatus and method and information recording medium 失效
标题翻译：信息记录/再现装置和方法和信息记录介质
公开(公告)号：US06680888B2
公开(公告)日：2004-01-20
申请号：US09971686
申请日：2001-10-09
申请人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
发明人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/00454 , G11B7/006
摘要： An information recording/reproducing apparatus includes a detector circuit for detecting a state of reflection light from the recording medium, a control circuit for calculating a radiation power used for writing the information in the recording medium, in accordance with the reflection light state, a pulse generator circuit for generating record pulse information in accordance with the radiation power, and an optical driver circuit for converting the record pulse information into optical information in accordance with the radiation power and driving the optical head to record the light information into the recording medium. Accordingly, the apparatus records information by applying light from an optical head to a record area of a recording medium and changing a state of the record area and reads the information recorded in the record area.
摘要翻译：一种信息记录/再现装置，包括用于检测来自记录介质的反射光的状态的检测器电路，用于根据反射光状态计算用于将信息写入记录介质中的辐射功率的控制电路，脉冲发生器电路，用于根据辐射功率产生记录脉冲信息;以及光驱动器电路，用于根据辐射功率将记录脉冲信息转换成光信息，并驱动光头以将光信息记录到记录介质中。因此，该装置通过将来自光头的光应用到记录介质的记录区域并改变记录区的状态并读取记录在记录区中的信息来记录信息。

62. 发明授权

US06608806B2 Information recording method and apparatus with suppressed mark edge jitters 有权
公开(公告)号：US06608806B2
公开(公告)日：2003-08-19
申请号：US10270543
申请日：2002-10-16
申请人： Makoto Miyamoto , Tsuyoshi Toda , Masatoshi Ohtake , Motoyasu Terao , Junko Ushiyama , Keikichi Andoo , Yumiko Anzai , Akemi Hirotsune , Tetsuya Nishida , Hideki Saga
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： G11B700
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.

63. 发明授权

US06304533B2 Information recording/reproducing apparatus and method and information recording medium 失效
公开(公告)号：US06304533B2
公开(公告)日：2001-10-16
申请号：US09752462
申请日：2001-01-03
申请人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
发明人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/00454 , G11B7/006
摘要： An information recording/reproducing apparatus includes a detector circuit for detecting a state of reflection light from the recording medium, a control circuit for calculating a radiation power used for writing the information in the recording medium, in accordance with the reflection light state, a pulse generator circuit for generating record pulse information in accordance with the radiation power, and an optical driver circuit for converting the record pulse information into optical information in accordance with the radiation power and driving the optical head to record the light information into the recording medium. Accordingly, the apparatus records information by applying light from an optical head to a record area of a recording medium and changing a state of the record area and reads the information recorded in the record area.

64. 发明授权

US06246661B1 Optical disk recording and retrieving device 失效
标题翻译：光盘记录和检索设备
公开(公告)号：US06246661B1
公开(公告)日：2001-06-12
申请号：US09644748
申请日：2000-08-24
申请人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
发明人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
IPC分类号： G11B700
CPC分类号： G11B7/1267 , G11B7/0045 , G11B7/0062 , G11B11/10504 , G11B11/10521 , G11B11/10595
摘要： The device seeks to improve the reliability of information and to increase recording capacity by controlling the recording mark to be recorded on the recording medium with high preciseness. To improve the conformity of a recording medium with a device that records, retrieves and erases information, a recording pulse train is generated by a test write data generating circuit 18 and a recording pulse forming circuit 15 and a recording mark is recorded on a recording medium 5 by a laser driver 14. Excessive power recording is reduced, an optimum recording power is determined and regular information recording and retrieving is carried out by detecting a test write data from a test write data detecting circuit 12 to which the retrieved signal from the recording medium 5 is input. Based upon analysis of the retrieved signal by a controller 19, and the range of next power scan is changed so as to avoid excessive power recording while making it possible to determine the optimum recording power.
摘要翻译：该设备旨在提高信息的可靠性并通过以高精度控制记录在记录介质上的记录标记来提高记录容量。为了提高记录介质与记录，检索和擦除信息的设备的一致性，记录脉冲串由测试写入数据产生电路18和记录脉冲形成电路15产生，记录标记被记录在记录介质上通过激光驱动器14来降低功率记录。通过检测来自记录的检索信号的测试写入数据检测电路12的测试写入数据，确定最佳记录功率并定期进行信息记录和检索介质5被输入。基于由控制器19对检索到的信号的分析，并且改变下一次功率扫描的范围，以避免过多的功率记录，同时使得可以确定最佳记录功率。

65. 发明授权

US6125093A Optical disk recording and retrieving device 失效
标题翻译：光盘记录和检索设备
公开(公告)号：US6125093A
公开(公告)日：2000-09-26
申请号：US411639
申请日：1999-10-04
申请人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
发明人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B11/105
CPC分类号： G11B7/1267 , G11B11/10595 , G11B7/0045 , G11B7/0062 , G11B11/10504 , G11B11/10521
摘要： The device seeks to improve the reliability of information and to increase recording capacity by controlling the recording mark to be recorded on the recording medium with high preciseness. To improve the conformity of a recording medium with a device that records, retrieves and erases information, a recording pulse train is generated by a test write data generating circuit 18 and a recording pulse forming circuit 15 and a recording mark is recorded on a recording medium 5 by a laser driver 14. Excessive power recording is reduced, an optimum recording power is determined and regular information recording and retrieving is carried out by detecting a test write data from a test write data detecting circuit 12 to which the retrieved signal from the recording medium 5 is input. Based upon analysis of the retrieved signal by a controller 19, and the range of next power scan is changed so as to avoid excessive power recording while making it possible to determine the optimum recording power.
摘要翻译：该设备旨在提高信息的可靠性并通过以高精度控制记录在记录介质上的记录标记来提高记录容量。为了提高记录介质与记录，检索和擦除信息的设备的一致性，记录脉冲串由测试写入数据产生电路18和记录脉冲形成电路15产生，记录标记被记录在记录介质上通过激光驱动器14来降低功率记录。通过检测来自记录的检索信号的测试写入数据检测电路12的测试写入数据，确定最佳记录功率并定期进行信息记录和检索介质5被输入。基于由控制器19对检索到的信号的分析，并且改变下一次功率扫描的范围，以避免过多的功率记录，同时使得可以确定最佳记录功率。

66. 发明授权

US5974021A Determination of optimal recording power in optical disk recording and retrieving device 失效
标题翻译：确定光盘记录和检索设备中的最佳记录功率
公开(公告)号：US5974021A
公开(公告)日：1999-10-26
申请号：US870405
申请日：1997-06-06
申请人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
发明人： Tsuyoshi Toda , Shigeki Yamazaki , Toshimitsu Kaku
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B11/105
CPC分类号： G11B7/1267 , G11B11/10595 , G11B7/0045 , G11B7/0062 , G11B11/10504 , G11B11/10521
摘要： The device seeks to improve the reliability of information and to increase recording capacity by controlling the recording mark to be recorded on the recording medium with high preciseness. To improve the conformity of a recording medium with a device that records, retrieves and erases information, a recording pulse train is generated by a test write data generating circuit 18 and a recording pulse forming circuit 15 and a recording mark is recorded on a recording medium 5 by a laser driver 14. Excessive power recording is reduced, an optimum recording power is determined and regular information recording and retrieving is carried out by detecting a test write data from a test write data detecting circuit 12 to which the retrieved signal from the recording medium 5 is input. Based upon analysis of the retrieved signal by a controller 19, and the range of next power scan is changed so as to avoid excessive power recording while making it possible to determine the optimum recording power.
摘要翻译：该设备旨在提高信息的可靠性并通过以高精度控制记录在记录介质上的记录标记来提高记录容量。为了提高记录介质与记录，检索和擦除信息的设备的一致性，记录脉冲串由测试写入数据产生电路18和记录脉冲形成电路15产生，记录标记被记录在记录介质上通过激光驱动器14来降低功率记录。通过检测来自记录的检索信号的测试写入数据检测电路12的测试写入数据，确定最佳记录功率并定期进行信息记录和检索介质5被输入。基于由控制器19对检索到的信号的分析，并且改变下一次功率扫描的范围，以避免过多的功率记录，同时使得可以确定最佳记录功率。

67. 发明授权

US5642343A Magnetooptic disc apparatus and recording medium 失效
标题翻译：磁光盘装置和记录介质
公开(公告)号：US5642343A
公开(公告)日：1997-06-24
申请号：US87777
申请日：1993-07-09
申请人： Tsuyoshi Toda , Kazuo Shigematsu , Seiichi Mita , Toshimitsu Kaku , Takeshi Maeda , Fumiyoshi Kirino , Hiroshi Ide , Atsushi Saito
发明人： Tsuyoshi Toda , Kazuo Shigematsu , Seiichi Mita , Toshimitsu Kaku , Takeshi Maeda , Fumiyoshi Kirino , Hiroshi Ide , Atsushi Saito
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/125 , G11B11/105 , G11B20/10 , G11B20/12 , G11B20/18 , G11B7/00
CPC分类号： G11B11/10506 , G11B11/1053 , G11B11/10595 , G11B20/10009 , G11B20/10212 , G11B20/1816 , G11B7/0045 , G11B7/126 , G11B7/24085 , G11B11/10517 , G11B20/1258
摘要： An optical method for recording, reproducing, and erasing a digital signal of a mark length recording system onto/from an optical recording medium such as an optical disc or the like eliminates a fluctuation of the edge position of the reproduction signal due to heat interference between pits, thereby reducing a fluctuation of the edge position due to a fluctuation of external environmental conditions. For this purpose, there are proposed the following methods: 1) the shape of the recording pulse waveform is controlled, 2) the density at which data is recorded to the disc is variably set in accordance with the disc position, 3) a test recording is executed prior to recording user data, and the like. With these methods, a superhigh density optical recording can be realized.
摘要翻译： PCT No.PCT / JP92 / 01460 Sec。 371日期：1993年7月9日 102（e）日期1993年7月9日PCT 1991年11月10日PCT PCT。公开号WO93 / 10527 日期：1993年5月27日用于记录，再现和擦除标记长度记录系统的数字信号到诸如光盘等的光学记录介质上的光学方法消除了由于再现信号的边缘位置的波动以加热凹坑之间的干扰，从而减少由于外部环境条件的波动引起的边缘位置的波动。为此，提出了以下方法：1）记录脉冲波形的形状被控制，2）根据光盘位置可变地设置数据记录到盘的密度，3）测试记录在记录用户数据之前执行等。利用这些方法，可以实现超高密度光学记录。

68. 发明授权

US5590111A Method of controlling recording of optical records 失效
标题翻译：控制光学记录记录的方法
公开(公告)号：US5590111A
公开(公告)日：1996-12-31
申请号：US91003
申请日：1993-07-13
申请人： Fumiyoshi Kirino , Takeshi Maeda , Hiroshi Ide , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu , Tsuyoshi Toda
发明人： Fumiyoshi Kirino , Takeshi Maeda , Hiroshi Ide , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu , Tsuyoshi Toda
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/125 , G11B11/105 , G11B20/10 , G11B20/12 , G11B20/18 , G11B7/00 , G11B3/90 , G11B5/09
CPC分类号： G11B7/126 , G11B11/1053 , G11B11/10595 , G11B20/10009 , G11B20/10212 , G11B20/1816 , G11B7/0045 , G11B7/1267 , G11B11/10506 , G11B11/10508 , G11B20/1258 , G11B7/24085
摘要： In a write control method on an optical recording, at least one shift amount selected from the defocus amount of a laser beam on a recording medium, the shift amount of a recording position on a recording track and the shift amount of laser power during recording is controlled such that the selected amount falls within a predetermined range. Subsequently, a trial signal is trially recorded at a plurality of trial zones on the recording medium by using a laser power value as a parameter. The recorded trial signal is read and a difference .DELTA.V between center levels of a highest density waveform and a lowest density waveform is detected. In connection with each trial zone, the laser power value when a reading trial signal which makes the difference .DELTA.V minimum is recorded is defined as an optimum recording power value. Regular data is recorded at a predetermined storage area on the recording medium by using an optimum laser power value determined in connection with a trial zone closest to the predetermined storage area.
摘要翻译：在光学记录中的写入控制方法中，从记录介质上的激光束的散焦量，记录轨道上的记录位置的偏移量和记录期间的激光功率的移动量选择的至少一个偏移量是被控制使得所选择的量落在预定范围内。随后，通过使用激光功率值作为参数，在记录介质上的多个试验区上试用信号。读取记录的试验信号，并检测最高密度波形的中心水平和最低密度波形之间的差ΔTA。结合每个试验区域，当记录使DELTA V最小值的读取试验信号被记录时的激光功率值被定义为最佳记录功率值。通过使用与最接近预定存储区域的试验区域确定的最佳激光功率值，将正常数据记录在记录介质上的预定存储区域。

69. 发明授权

US5457666A Light modulation method for forming a mark in magneto-optical recording system 失效
标题翻译：用于在磁光记录系统中形成标记的光调制方法
公开(公告)号：US5457666A
公开(公告)日：1995-10-10
申请号：US114062
申请日：1993-08-31
申请人： Tsuyoshi Toda , Hiroshi Ide , Fumiyoshi Kirino , Takeshi Maeda , Hiroyuki Tsuchinaga , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu
发明人： Tsuyoshi Toda , Hiroshi Ide , Fumiyoshi Kirino , Takeshi Maeda , Hiroyuki Tsuchinaga , Toshimitsu Kaku , Seiichi Mita , Kazuo Shigematsu
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B11/10 , G11B11/105 , G11B7/24
CPC分类号： G11B7/126 , G11B11/10506 , G11B11/1053 , G11B7/0045 , G11B7/006
摘要： A magneto-optical disk recording control method using the mark length recording method wherein the marks and gap regions between marks are recorded on the surface of the disk by maintaining a constant temperature distribution during the recording. The laser is driven to a non-recording level in gap regions between marks that exceed a base recording level used for reproduction of the marks. When a mark is recorded, the laser power is increased to a recording power level and after the mark has been recorded, the laser power level is reduced to the base power level, followed by being raised to the gap recording level. Control of the laser is performed by superposing a plurality of pulse trains that are synchronized with respect to a clock having a cycle T. The pulse trains are derived from the code train to be recorded and have pulses with a duration that is an integral multiple of (1/2)T. If the pulse width of the recording code train exceeds 2T, then the laser is controlled to reach a first power level in accordance with pulses of a first pulse train, be reduced to the gap recording level and then raised to a second power level in accordance with a second recording pulse train to maintain the temperature distribution constant during the recording of the mark. For the recording of longer marks, the laser is controlled to vary between the second power level and the gap recording level.
摘要翻译：一种使用标记长度记录方法的磁光盘记录控制方法，其中通过在记录期间保持恒定的温度分布将标记之间的标记和间隙区域记录在盘的表面上。在超过用于再现标记的基本记录水平的标记之间的间隙区域中激光被驱动到非记录水平。当记录标记时，激光功率增加到记录功率水平，并且在记录标记之后，激光功率水平降低到基本功率水平，然后升高到间隙记录水平。通过叠加相对于具有周期T的时钟同步的多个脉冲串来执行激光的控制。脉冲序列是从要被记录的代码序列导出的，具有持续时间为整数倍的脉冲（1/2）T。如果记录代码串的脉冲宽度超过2T，则根据第一脉冲序列的脉冲将激光器控制到达到第一功率电平，减小到间隙记录电平，然后依次升高到第二功率电平具有第二记录脉冲串，以在记录记录期间保持温度分布恒定。为了记录更长的标记，激光器被控制在第二功率电平和间隙记录电平之间变化。

70. 发明授权

US08144559B2 Multiple pulse recording method with 3-valued power levels 失效
标题翻译：具有3值功率电平的多脉冲记录方法
公开(公告)号：US08144559B2
公开(公告)日：2012-03-27
申请号：US11761399
申请日：2007-06-12
申请人： Hiroyuki Minemura , Tsuyoshi Toda , Toshimitsu Kaku
发明人： Hiroyuki Minemura , Tsuyoshi Toda , Toshimitsu Kaku
IPC分类号： G11B5/09
CPC分类号： G11B7/00456 , G11B7/1267
摘要： Pulses modulated between the erase power and the bottom power are used instead of cooling pulses for an optical disk medium that needs a write strategy with 4-valued power levels. Consequently, pulse instruction lines for the cooling pulses, power level instruction lines, and corresponding current source within the laser driver can be omitted. Decrease in size and lower power consumption can be accomplished.
摘要翻译：使用在擦除功率和底部功率之间调制的脉冲来代替需要具有4值功率电平的写入策略的光盘介质的冷却脉冲。因此，可以省略用于冷却脉冲，功率电平指令线和激光驱动器内的对应电流源的脉冲指令线。可以实现尺寸减小和功耗降低。

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