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1. 发明授权

US06728178B2 Semiconductor laser control method and semiconductor laser control device 有权
标题翻译：半导体激光控制方法和半导体激光控制装置
公开(公告)号：US06728178B2
公开(公告)日：2004-04-27
申请号：US09983402
申请日：2001-10-24
申请人： Kenji Koishi , Yoshiyuki Miyabata , Makoto Usui , Kohjyu Konno , Yasuhiro Ueki , Tomonori Ueno , Yutaka Osada , Toru Fujimoto
发明人： Kenji Koishi , Yoshiyuki Miyabata , Makoto Usui , Kohjyu Konno , Yasuhiro Ueki , Tomonori Ueno , Yutaka Osada , Toru Fujimoto
IPC分类号： H01S310
CPC分类号： G11B7/1263 , G11B7/1267
摘要： Playback signal amplitude drops and continuity of the signal track amplitude is lost at the beginning the data recording area when data is incrementally written to optical discs such as DVD-R or DVD-RW media. Feed-forward control quickly settles semiconductor laser recording power to the target power level immediately after an incremental recording starts. While recording continues, feedback control maintains laser power at a desired recording power level even when the required current supply varies due to the temperature characteristics of the semiconductor laser when recording lasts for an extended period of time. A semiconductor laser control method and semiconductor laser control device thereby maintain laser power at a stable target recording power level quickly and for as long as recording continues.
摘要翻译：当数据被递增地写入诸如DVD-R或DVD-RW光盘的光盘时，数据记录区开始时，回放信号幅度下降和信号轨迹幅度的连续性丢失。增量记录开始后，前馈控制可以快速将半导体激光记录功率稳定在目标功率水平。在继续记录的同时，即使当所需的电流源由于半导体激光器的温度特性在长时间持续时的温度特性而变化时，反馈控制将激光功率维持在期望的记录功率水平。半导体激光器控制方法和半导体激光器控制装置能够使激光功率保持在稳定的目标记录功率水平，并且只要持续进行记录。

2. 发明授权

US06657935B2 Method and apparatus for recording information on recording medium 有权
公开(公告)号：US06657935B2
公开(公告)日：2003-12-02
申请号：US09944120
申请日：2001-09-04
申请人： Hideharu Eguchi , Yasuhiro Ueki , Osamu Yanagisawa , Yutaka Osada , Kenji Koishi , Makoto Usui , Kohjyu Konno , Yuuichi Kamioka
发明人： Hideharu Eguchi , Yasuhiro Ueki , Osamu Yanagisawa , Yutaka Osada , Kenji Koishi , Makoto Usui , Kohjyu Konno , Yuuichi Kamioka
IPC分类号： G11B700
CPC分类号： G11B7/126
摘要： Multi-pulse trains of a forward laser beam are applied to an optical disc to record mark areas thereon. The multi-pulse trains correspond to the mark areas respectively. The multi-pulse trains represent information to be recorded. Detection is made as to an intensity of a reflected laser beam which results from reflection of the forward laser beam by the optical disc. The detected intensity is divided by a setting intensity to get a division result. A condition of recording of each of the mark areas is detected in response to the division result. An amplitude of each of the multi-pulse trains is controlled in response to the detected condition.

3. 发明授权

US06856586B2 Recording clock generating device and method thereof 有权
标题翻译：记录时钟发生装置及其方法
公开(公告)号：US06856586B2
公开(公告)日：2005-02-15
申请号：US09983977
申请日：2001-10-26
申请人： Makoto Usui , Hironori Deguchi , Takahiro Ochi , Yasuhiro Ueki , Mitsuhiko Ohta , Yutaka Osada
发明人： Makoto Usui , Hironori Deguchi , Takahiro Ochi , Yasuhiro Ueki , Mitsuhiko Ohta , Yutaka Osada
IPC分类号： G11B7/0045 , G11B7/007 , G11B20/14 , G11B27/19 , G11B27/24 , G11B27/30 , H03L7/18
CPC分类号： G11B27/24 , G11B7/0045 , G11B7/00718 , G11B20/1426 , G11B27/3027 , G11B2020/1446 , G11B2220/216 , G11B2220/218 , G11B2220/2562 , H03L7/18
摘要： Crosstalk between tracks, land prepit leakage, and effects of recording power modulation can cause the wobble signal period to change irregularly, thereby producing jitter in the recording clock which is derived by frequency multiplying the wobble signal. This problem is resolved by a recording clock generating circuit having an arrangement to average the wobble signal period, a timer for generating a rectangular wave with substantially the same period as the average period, and a frequency multiplying PLL for multiplying the timer output. The period averaging arrangement in particular determines the approximate average period at every wobble period and reflects the phase difference between the wobble signal and the timer in the timer setting so as to improve recording clock stability.
摘要翻译：轨道之间的串扰，陆地预浸渍泄漏以及记录功率调制的影响可能导致摆动信号周期不规则地变化，从而通过频率乘以摆动信号而产生的记录时钟产生抖动。该问题由具有平均摆动信号周期的布置的记录时钟发生电路，用于产生与平均周期基本上相同周期的矩形波的定时器和用于乘以定时器输出的倍频PLL来解决。周期平均布置特别地确定每个摆动周期的近似平均周期，并且反映定时器设置中摆动信号和定时器之间的相位差，从而提高记录时钟稳定性。

4. 发明授权

US07113473B2 Optical information recording apparatus for stable recording 有权
标题翻译：用于稳定记录的光信息记录装置
公开(公告)号：US07113473B2
公开(公告)日：2006-09-26
申请号：US11046777
申请日：2005-02-01
申请人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
发明人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/0901
摘要： In an apparatus for recording information to an optical recording medium, a laser beam is irradiated to and reflected from the medium. A photodetector detects the light quantity of the irradiated or reflected light beam, and the detected laser beam is subjected to signal processing. Then, a sampler samples the laser beam at the timing of a sampling pulse which is supplied from a sampling pulse generator. Then, a controller controls the laser power according to the sampled laser beam. A pulse timing setting unit sets and adjusts the timing of the sampling pulse by taking into account the response time in the propagation path of the laser beam from the start of the irradiation to the sampling. Thus, the laser power can be monitored correctly, and the laser power can be optimized so as to stably and reliably reproduce an address signal and to generate a servo signal while data is being recorded.
摘要翻译：在用于将信息记录到光学记录介质的装置中，激光束被照射并从介质反射。光检测器检测照射或反射光束的光量，并且检测的激光束进行信号处理。然后，采样器在从采样脉冲发生器提供的采样脉冲的定时采样激光束。然后，控制器根据采样的激光束控制激光功率。脉冲定时设定单元通过考虑激光束从照射开始到采样的传播路径中的响应时间来设定和调整采样脉冲的定时。因此，可以正确地监视激光功率，并且可以优化激光功率，以便稳定可靠地再现地址信号，并在数据被记录时产生伺服信号。

5. 发明申请

US20050152260A1 Optical information recording apparatus for stable recording 有权
标题翻译：用于稳定记录的光信息记录装置
公开(公告)号：US20050152260A1
公开(公告)日：2005-07-14
申请号：US11046777
申请日：2005-02-01
申请人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
发明人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
IPC分类号： G11B7/0045 , G11B7/09 , G11B7/125 , G11B7/00
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/0901
摘要： In an apparatus for recording information to an optical recording medium, a laser beam is irradiated to and reflected from the medium. A photodetector detects the light quantity of the irradiated or reflected light beam, and the detected laser beam is subjected to signal processing. Then, a sampler samples the laser beam at the timing of a sampling pulse which is supplied from a sampling pulse generator. Then, a controller controls the laser power according to the sampled laser beam. A pulse timing setting unit sets and adjusts the timing of the sampling pulse by taking into account the response time in the propagation path of the laser beam from the start of the irradiation to the sampling. Thus, the laser power can be monitored correctly, and the laser power can be optimized so as to stably and reliably reproduce an address signal and to generate a servo signal while data is being recorded.
摘要翻译：在用于将信息记录到光学记录介质的装置中，激光束被照射并从介质反射。光检测器检测照射或反射光束的光量，并且检测的激光束进行信号处理。然后，采样器在从采样脉冲发生器提供的采样脉冲的定时采样激光束。然后，控制器根据采样的激光束控制激光功率。脉冲定时设定单元通过考虑激光束从照射开始到采样的传播路径中的响应时间来设定和调整采样脉冲的定时。因此，可以正确地监视激光功率，并且可以优化激光功率，以便稳定可靠地再现地址信号，并在数据被记录时产生伺服信号。

6. 发明授权

US06868053B2 Optical information recording apparatus for stable recording 有权
公开(公告)号：US06868053B2
公开(公告)日：2005-03-15
申请号：US09832938
申请日：2001-04-12
申请人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
发明人： Toyoji Gushima , Makoto Usui , Kenji Koishi , Yuuichi Kamioka
IPC分类号： G11B7/0045 , G11B7/09 , G11B7/125 , G11B5/09
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/0901
摘要： In an apparatus for recording information to an optical recording medium, a laser beam is irradiated to and reflected from the medium. A photodetector detects the light quantity of the irradiated or reflected light beam, and the detected laser beam is subjected to signal processing. Then, a sampler samples the laser beam at the timing of a sampling pulse which is supplied from a sampling pulse generator. Then, a controller controls the laser power according to the sampled laser beam. A pulse timing setting unit sets and adjusts the timing of the sampling pulse by taking into account the response time in the propagation path of the laser beam from the start of the irradiation to the sampling. Thus, the laser power can be monitored correctly, and the laser power can be optimized so as to stably and reliably reproduce an address signal and to generate a servo signal while data is being recorded.

7. 发明授权

US08295135B2 Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device 有权
公开(公告)号：US08295135B2
公开(公告)日：2012-10-23
申请号：US13364608
申请日：2012-02-02
申请人： Masaru Yamaoka , Mamoru Shoji , Keiji Nishikiori , Makoto Usui , Mitsuro Moriya
发明人： Masaru Yamaoka , Mamoru Shoji , Keiji Nishikiori , Makoto Usui , Mitsuro Moriya
IPC分类号： G11B20/10
CPC分类号： G11B20/00115 , G11B7/00736 , G11B7/24094 , G11B20/00086 , G11B20/00173 , G11B20/00586 , G11B20/1252 , G11B2220/2541
摘要： An optical disc includes a reflective film formed on concave and convex marks after the concave and convex marks are synchronized with the integral multiple of a channel bit length and formed in accordance with modulated main information. Thereafter, continuous or intermittent laser light synchronized with the integral multiple of the channel bit length is irradiated at intervals longer than the longest one of the concave and convex marks in accordance with a spiral track formed in a circumferential direction of the concave and convex marks, whereby an optical characteristic of the reflective film is changed to form a recordable mark and sub-information necessary to reproduce the main information is recorded in a superimposition manner.

8. 发明授权

US08243567B2 Optical disc, playback apparatus for optical disc, and apparatus and method for manufacturing optical disc 有权
标题翻译：光盘，光盘播放装置以及光盘制造装置及方法
公开(公告)号：US08243567B2
公开(公告)日：2012-08-14
申请号：US12810911
申请日：2009-09-07
申请人： Masaru Yamaoka , Makoto Usui
发明人： Masaru Yamaoka , Makoto Usui
IPC分类号： G11B5/09
CPC分类号： G11B20/00086 , G11B7/0053 , G11B7/00736 , G11B7/00745 , G11B20/00115 , G11B20/0021 , G11B20/00376 , G11B20/00586 , G11B20/00594 , G11B20/00608 , G11B20/00615 , G11B20/0063 , G11B20/00688 , G11B20/00695 , G11B20/1217 , G11B2020/1222 , G11B2020/1287 , G11B2220/2562
摘要： Provided is an optical disc having main information to be decrypted using sub information recorded thereon by arranging concave or convex recording marks in a spiral track wherein a reflective film is formed on the recording marks. First sub information is recorded and superimposed on the main information by shifting/deforming the recording marks or altering a pattern of the recording marks. Second sub information is recorded and superimposed on the main information by changing a reflectivity of the reflective film. The first and second sub information are recorded in an area from which the first and second sub information are to be read simultaneously. The second sub information is recorded in a manner to be associated with the first sub information. The first and second sub information are associated with each other and are recorded in the same area.
摘要翻译：提供了一种光盘，其具有使用其上记录的子信息进行解密的主信息，其中在记录标记上形成反射膜的螺旋形轨道中设置凹凸记录标记。通过移动/变形记录标记或改变记录标记的图案，将第一子信息记录并叠加在主信息上。通过改变反射膜的反射率将第二子信息记录并叠加在主信息上。第一和第二子信息被记录在同时要从其读取第一和第二子信息的区域中。以与第一子信息相关联的方式记录第二子信息。第一和第二子信息彼此相关联并被记录在相同的区域中。

9. 发明授权

US08130614B2 Optical storage medium, information recording apparatus, and information reproducing apparatus 有权
标题翻译：光存储介质，信息记录装置和信息再现装置
公开(公告)号：US08130614B2
公开(公告)日：2012-03-06
申请号：US12500285
申请日：2009-07-09
申请人： Shin-ichi Kadowaki , Masaru Yamaoka , Takashi Yumiba , Toyoji Gushima , Makoto Usui , Shin-ichi Tanaka , Mitsurou Moriya
发明人： Shin-ichi Kadowaki , Masaru Yamaoka , Takashi Yumiba , Toyoji Gushima , Makoto Usui , Shin-ichi Tanaka , Mitsurou Moriya
IPC分类号： G11B7/00
CPC分类号： G11B7/00736 , G11B7/24079 , G11B7/24082 , G11B7/24085 , G11B20/00086 , G11B20/0021 , G11B20/00253 , G11B20/00492 , G11B20/00586 , G11B20/00594 , G11B20/00601 , G11B2020/1287
摘要： An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove.
摘要翻译：可以提供光存储介质，通过该光存储介质可以有效地防止涉及侵犯版权的光存储介质的非法使用，而不会损害用于再现物理格式信息和光存储介质制造信息的功能。光存储介质包括主信息区，其中加密数据信息被记录为能够通过光读出的凹坑行和控制数据区。在控制数据区域中，通过摆动槽来记录用于解码数据信息的加密的密钥信息，物理格式信息和光学存储介质制造信息。

10. 发明授权

US08040785B2 Optical disc, optical disc manufacturing method, optical disc recording device and optical disc reproduction device 有权
标题翻译：光盘，光盘制造方法，光盘记录装置和光盘再现装置
公开(公告)号：US08040785B2
公开(公告)日：2011-10-18
申请号：US12302201
申请日：2007-05-28
申请人： Masaru Yamaoka , Mamoru Shoji , Keiji Nishikiori , Makoto Usui , Mitsuro Moriya
发明人： Masaru Yamaoka , Mamoru Shoji , Keiji Nishikiori , Makoto Usui , Mitsuro Moriya
IPC分类号： G11B7/24
CPC分类号： G11B20/00115 , G11B7/00736 , G11B7/24094 , G11B20/00086 , G11B20/00173 , G11B20/00586 , G11B20/1252 , G11B2220/2541
摘要： An optical disc includes a reflective film formed on concave and convex marks after the concave and convex marks are synchronized with the integral multiple of a channel bit length and formed in accordance with modulated main information. Thereafter, continuous or intermittent laser light synchronized with the integral multiple of the channel bit length is irradiated at intervals longer than the longest one of the concave and convex marks in accordance with a spiral track formed in a circumferential direction of the concave and convex marks, whereby an optical characteristic of the reflective film is changed to form a recordable mark and sub-information necessary to reproduce the main information is recorded in a superimposition manner.
摘要翻译：光盘包括在凹凸标记与通道位长度的整数倍同步并根据调制的主信息形成的凹凸标记上形成的反射膜。此后，根据在凹凸标记的圆周方向上形成的螺旋形轨迹，以与凹凸标记中最长的一个长的间隔照射与通道位长度的整数倍同步的连续或间歇激光，由此改变反射膜的光学特性以形成可记录标记，并且以叠加方式记录再现主信息所需的子信息。

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