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1. 发明授权

US06671239B2 Information recording/reproducing apparatus and method and information recording medium 失效
公开(公告)号：US06671239B2
公开(公告)日：2003-12-30
申请号：US10214365
申请日：2002-08-08
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 for overwriting information by applying light from an optical head to a record area and a space of a rewritable recording medium and changing a state of the record area and for reading the information recorded in the record area. The apparatus includes a detector circuit for detecting a state of the record area and the space where information is already recorded by detecting a reflection light while recording information thereon by overwriting, a control circuit for calculating a radiation power used for recording the information and for forming the space on the record area so as to overwrite where information is already recorded in the recording medium, in accordance with the detected reflection light, a pulse generator circuit, and an optical driver circuit.

2. 发明授权

US06445659B1 Information recording/reproducing apparatus and method and information recording medium 有权
公开(公告)号：US06445659B1
公开(公告)日：2002-09-03
申请号：US09784115
申请日：2001-02-16
申请人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
发明人： Tsuyoshi Toda , Shigeru Nakamura , Takeshi Maeda
IPC分类号： G11B700
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.

3. 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。

4. 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.

5. 发明授权

US06272100B1 Information recording/reproducing apparatus and method and information recording medium 失效
公开(公告)号：US06272100B1
公开(公告)日：2001-08-07
申请号：US09059977
申请日：1998-04-14
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.

6. 发明授权

US07057996B2 Information recording method, information recording medium, and information recording apparatus 失效
标题翻译：信息记录方法，信息记录介质和信息记录装置
公开(公告)号：US07057996B2
公开(公告)日：2006-06-06
申请号：US11002895
申请日：2004-12-03
申请人： Hidehiko Kando , Takeshi Maeda , Hiroyuki Minemura , Tsuyoshi Toda , Yasushi Miyauchi , Mitsuhide Miyamoto
发明人： Hidehiko Kando , Takeshi Maeda , Hiroyuki Minemura , Tsuyoshi Toda , Yasushi Miyauchi , Mitsuhide Miyamoto
IPC分类号： G11B5/76
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062 , G11B7/00736
摘要： An information recording apparatus having an energy beam generator for generating an energy beam, a power adjusting mechanism for setting a power level of the energy beam to a first power level state and a second power level state which is higher than the first power level state and a circuit for generating a basic recording pattern to record a recording medium. When a period of a recording timing generating clock in a recording mode is T, and a relative velocity of the energy beam and the recording medium is v, the circuit forming a sequence of the first and second power level states so as to effect recording.
摘要翻译：一种具有用于产生能量束的能量束发生器的信息记录装置，用于将能量束的功率电平设置为第一功率电平状态的功率调节机构和高于第一功率电平状态的第二功率电平状态，以及用于产生用于记录记录介质的基本记录图案的电路。当记录模式的记录定时产生时钟的周期为T时，能量束和记录介质的相对速度为v，该电路形成第一和第二功率电平状态的序列以便进行记录。

7. 发明授权

US06909682B2 Information recording method, information recording medium, and information recording apparatus 有权
标题翻译：信息记录方法，信息记录介质和信息记录装置
公开(公告)号：US06909682B2
公开(公告)日：2005-06-21
申请号：US10655005
申请日：2003-09-05
申请人： Hidehiko Kando , Takeshi Maeda , Hiroyuki Minemura , Tsuyoshi Toda , Yasushi Miyauchi , Mitsuhide Miyamoto
发明人： Hidehiko Kando , Takeshi Maeda , Hiroyuki Minemura , Tsuyoshi Toda , Yasushi Miyauchi , Mitsuhide Miyamoto
IPC分类号： G11B7/0045 , G11B7/006 , G11B7/007 , G11B7/125 , G11B5/76
CPC分类号： G11B7/1267 , G11B7/00456 , G11B7/0062 , G11B7/00736
摘要： An information recording method using a recording medium having a first state by a first power level of an energy beam and a second state by a second power level of the energy beam higher than the first power level. When a period of a recording time generating clock in a recording mode is T, and a relative velocity of the energy beam and the recording medium is V, the method includes forming a sequence of the second state with length avT (first mark), the first state with length ivT (first space) following the first mark, the second state with length mvT (second mark) following the first space, the first state with length jvT (second space) following the second mark and the second state with length bvT (third mark) following the second space as a first small recording pattern.
摘要翻译：一种使用具有第一状态的能量束的第一功率电平和第二状态的记录介质的信息记录方法，所述记录介质的能量束的第二功率电平高于所述第一功率电平。当以记录模式生成时钟的记录时间的周期为T，能量束和记录介质的相对速度为V时，该方法包括形成具有长度avT（第一标记）的第二状态的序列，在第一标记之后具有长度为ivT（第一空格）的第一状态，跟随第一空格的长度为mvT（第二标记）的第二状态，具有第二标记的长度为jvT（第二空格）的第一状态和具有长度bvT的第二状态（第三标记）作为第一小记录模式。

8. 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。

9. 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。

10. 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。

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