专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US07428198B2 Optical disc device 有权
标题翻译：光盘设备
公开(公告)号：US07428198B2
公开(公告)日：2008-09-23
申请号：US11075763
申请日：2005-03-10
申请人： Kenji Nakao , Noboru Mamiya , Ken Hirose , Satoshi Sumi
发明人： Kenji Nakao , Noboru Mamiya , Ken Hirose , Satoshi Sumi
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/1263
摘要： Provided is an optical disc device in which adjustment precision of recording laser power is improved without complication of a processing sequence during recording operation. In response to a recording start instruction, OPC is executed using an inner disc drive zone to set an initial value of recording laser power Pws. Then, when a first recording instruction REC(1) is detected, recording is successively performed from the head of a data area using the laser power Pws. After that, when an intermittent standby period is set, sample data is recorded to a next recording position and R-OPC is executed. Therefore, the recording laser power Pws is set again. Next, when a second recording instruction REC(2) is detected, recording is successively performed from a next recording position, that is, a position next to an end portion of the first recording instruction REC(1) using the reset laser power Pws. At this time, data corresponding to a head portion of the second recording instruction REC(2) is overwritten on sample data in the head of the recording position.
摘要翻译：提供了一种在记录操作期间不改变处理顺序的情况下改善记录激光功率的调整精度的光盘装置。响应于记录开始指令，使用内盘驱动器区域执行OPC以设置记录激光功率Pws的初始值。然后，当检测到第一记录指令REC（1）时，使用激光功率Pws从数据区域的头连续进行记录。之后，当设定间歇待机时间时，将采样数据记录到下一个记录位置，并执行R-OPC。因此，再次设定记录激光功率Pws。接下来，当检测到第二记录指令REC（2）时，使用复位激光功率Pws从下一记录位置，即与第一记录指令REC（1）的结束部分相邻的位置连续进行记录。此时，对应于第二记录指令REC（2）的头部的数据被重写在记录位置的头部的样本数据上。

92. 发明授权

US07426166B2 Information recording method and information recording apparatus that can achieve uniform signal characteristics and overwriting characteristics over an entire surface of an optical disk medium 有权
标题翻译：信息记录方法和信息记录装置，其能够在光盘介质的整个表面上实现均匀的信号特性和重写特性
公开(公告)号：US07426166B2
公开(公告)日：2008-09-16
申请号：US10875167
申请日：2004-06-25
申请人： Kenya Yokoi
发明人： Kenya Yokoi
IPC分类号： G11B5/09
CPC分类号： G11B7/1263 , G11B7/0062
摘要： In an information recording method and apparatus, when performing recording by using multiple pulses defined by erase powers Pe1 and Pe2 for forming a space part between mark parts, the set values of the erase powers Pe1 and Pe2 are updated at predetermined intervals in accordance with a recording linear velocity.
摘要翻译：在信息记录方法和装置中，当通过使用由擦除功率Pe 1和Pe 2定义的多个脉冲进行记录以形成标记部分之间的空间部分时，以预定间隔更新擦除功率Pe 1和Pe 2的设定值根据记录线速度。

93. 发明申请

US20080219306A1 Laser Power Algorithm for Low Power Applications 审中-公开
标题翻译：用于低功率应用的激光功率算法
公开(公告)号：US20080219306A1
公开(公告)日：2008-09-11
申请号：US11994193
申请日：2006-06-27
申请人： Ivon Franciscus Helwegen , Henricus Renatus Martinus Verberne
发明人： Ivon Franciscus Helwegen , Henricus Renatus Martinus Verberne
IPC分类号： H01S3/10
CPC分类号： G11B7/1263
摘要： A system and method to minimize the power consumed by a light source. The power of a light source in controlled in response to a determination of the quality of the received data in order to optimize a reduction in power consumption. If the quality of the received data is sufficient, then the laser power can be reduced in order to save power.
摘要翻译：一种使光源消耗的功率最小化的系统和方法。响应于确定接收到的数据的质量而控制光源的功率，以便优化功耗的降低。如果接收到的数据的质量足够，则可以减少激光功率以节省电力。

94. 发明申请

US20080205240A1 FOCUSING CONTROLLER AND METHOD THEROF FOR AN OPTICAL DISK DRIVE 有权
标题翻译：聚焦光盘驱动器的控制器及其方法
公开(公告)号：US20080205240A1
公开(公告)日：2008-08-28
申请号：US12111933
申请日：2008-04-29
申请人： Yi-Lin Lai , Chin-Yin Tsai
发明人： Yi-Lin Lai , Chin-Yin Tsai
IPC分类号： G11B7/00
CPC分类号： G11B7/0941 , G11B7/00375 , G11B7/0045 , G11B7/0948 , G11B7/1263 , G11B7/1267 , G11B20/18
摘要： A focusing controller and the method thereof for an optical disk drive. The focusing controller includes a filter, a coupler and a focus compensator. The filter filters out a high-frequency component of the track error signal and derives an adjusted signal, while the coupler eliminates the adjustment signal from the focusing error signal so as to generate a coupled signal. The focus compensator generates a focus control signal used for controlling a position of the pick up head of the optical disk drive according to the coupled signal during a focusing operation.
摘要翻译：一种用于光盘驱动器的聚焦控制器及其方法。聚焦控制器包括滤光器，耦合器和聚焦补偿器。滤波器滤除轨道误差信号的高频分量并导出调整后的信号，而耦合器消除了来自聚焦误差信号的调整信号，从而产生耦合信号。聚焦补偿器根据聚焦操作期间的耦合信号产生用于控制光盘驱动器的拾取头的位置的聚焦控制信号。

95. 发明授权

US07414952B2 Laser driving apparatus and associated methodology of controlling a drive current 失效
标题翻译：激光驱动装置及控制驱动电流的相关方法
公开(公告)号：US07414952B2
公开(公告)日：2008-08-19
申请号：US10780511
申请日：2004-02-17
申请人： Jumpei Kura , Motoi Kimura
发明人： Jumpei Kura , Motoi Kimura
IPC分类号： G11B7/125
CPC分类号： G11B7/1263 , H01S5/0683
摘要： A laser driving apparatus for a light source of an optical head apparatus includes a laser, a laser driving circuit, and a radio frequency current generation circuit for generating a radio frequency current to be superimposed on the drive current. The laser driving apparatus further includes a current monitor circuit, an optical detector for detecting an optical output of the laser; a selection circuit for selecting either of non-superimposing or superimposing the radio frequency current on the drive current, an APC circuit for controlling the optical output of the laser at a constant level, and a control circuit. The control circuit controls the amplitude of the radio frequency current on the basis of current values of the drive current on non-superimposing and superimposing or detection values of the optical output of the laser on non-superimposing and superimposing.
摘要翻译：用于光头装置的光源的激光驱动装置包括激光器，激光驱动电路和射频电流产生电路，用于产生叠加在驱动电流上的射频电流。激光驱动装置还包括电流监视电路，用于检测激光的光输出的光检测器; 用于选择不叠加或叠加驱动电流的射频电流的选择电路，用于控制激光器的光输出恒定电平的APC电路和控制电路。控制电路基于不叠加和叠加的激光的光输出的非叠加和叠加或检测值的驱动电流的电流值来控制射频电流的幅度。

96. 发明授权

US07411885B2 Method of determining the time of adjusting writing strategy of an optical drive 失效
标题翻译：确定光盘驱动器写入策略调整时间的方法
公开(公告)号：US07411885B2
公开(公告)日：2008-08-12
申请号：US11075715
申请日：2005-03-10
申请人： Chi-Yuan Liu
发明人： Chi-Yuan Liu
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/0062
摘要： A method of determining the time of adjusting writing strategy of an optical drive. Firstly, relation between an output signal value and an ambient temperature is recorded in a look up table stored in a memory. Then, the output signal value of a compensator can be obtained by looking up the look up table according to the ambient temperature of the optical drive. When the ambient temperature is higher than a predetermined temperature, the optical drive adjusts the writing strategy.
摘要翻译：一种确定光驱的写入策略调整时间的方法。首先，输出信号值和环境温度之间的关系被记录在存储在存储器中的查找表中。然后，可以通过根据光驱的环境温度查找查找表来获得补偿器的输出信号值。当环境温度高于预定温度时，光驱调节写入策略。

97. 发明授权

US07385896B2 Focusing controller apparatus and method for an optical disk drive 有权
标题翻译：用于光盘驱动器的聚焦控制器装置和方法
公开(公告)号：US07385896B2
公开(公告)日：2008-06-10
申请号：US10990665
申请日：2004-11-17
申请人： Yi-Lin Lai , Chin-Yin Tsai
发明人： Yi-Lin Lai , Chin-Yin Tsai
IPC分类号： G11B7/00
CPC分类号： G11B7/0941 , G11B7/00375 , G11B7/0045 , G11B7/0948 , G11B7/1263 , G11B7/1267 , G11B20/18
摘要： A focusing controller and the method thereof for an optical disk drive. The focusing controller includes a filter, a coupler and a focus compensator. The filter filters out a high-frequency component of the track error signal and derives an adjusted signal, while the coupler eliminates the adjustment signal from the focusing error signal so as to generate a coupled signal. The focus compensator generates a focus control signal used for controlling a position of the pick up head of the optical disk drive according to the coupled signal during a focusing operation.
摘要翻译：一种用于光盘驱动器的聚焦控制器及其方法。聚焦控制器包括滤光器，耦合器和聚焦补偿器。滤波器滤除轨道误差信号的高频分量并导出调整后的信号，而耦合器消除了来自聚焦误差信号的调整信号，从而产生耦合信号。聚焦补偿器根据聚焦操作期间的耦合信号产生用于控制光盘驱动器的拾取头的位置的聚焦控制信号。

98. 发明授权

US07372799B2 Laser diode drive circuit and amplifying circuit for optical disc recording and/or reproducing apparatus 失效
标题翻译：用于光盘记录和/或再现装置的激光二极管驱动电路和放大电路
公开(公告)号：US07372799B2
公开(公告)日：2008-05-13
申请号：US11378272
申请日：2006-03-20
申请人： Toru Nagara
发明人： Toru Nagara
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/1275 , G11B2007/0006 , H01S5/042 , H01S5/0683 , H01S5/40 , H01S5/4087
摘要： A laser diode drive circuit for an optical disc recording and/or reproducing apparatus includes a plurality of laser diodes to output laser beams having different wavelengths, a switch circuit for selectively connecting a required laser diode from a plurality of laser diodes, a laser diode drive power supply circuit for driving the laser diode selectively connected by the switch circuit, a photodiode for detecting at least part of laser beams emitted from the laser diode to convert a detected part of laser beams into an electrical signal, a plurality of current-to-voltage conversion amplifiers connected to an output of the photodiode and whose conversion resistance values can be adjusted and having differently designed center conversion resistance values and an automatic power control circuit connected to outputs of the current-to-voltage conversion amplifiers to output a feedback signal to the laser diode drive power supply circuit. An amplifying circuit for such a laser diode drive power supply circuit, an optical disc recording and/or reproducing apparatus including such a laser diode drive circuit and a laser diode drive method for an optical disc recording and/or reproducing apparatus are also provided.
摘要翻译：用于光盘记录和/或再现装置的激光二极管驱动电路包括多个激光二极管以输出具有不同波长的激光束，用于选择性地连接来自多个激光二极管的所需激光二极管的开关电路，激光二极管驱动用于驱动由开关电路选择性地连接的激光二极管的电源电路;光电二极管，用于检测从激光二极管发射的激光束的至少一部分，以将检测到的激光束部分转换为电信号;多个电流 - 连接到光电二极管的输出的电压转换放大器，其转换电阻值可被调整并具有不同设计的中心转换电阻值，以及自动功率控制电路，连接到电流 - 电压转换放大器的输出端，以将反馈信号输出到激光二极管驱动电源电路。还提供了这种激光二极管驱动电源电路的放大电路，包括这种激光二极管驱动电路的光盘记录和/或再现装置和用于光盘记录和/或再现装置的激光二极管驱动方法。

99. 发明申请

US20080101205A1 OPTICAL DISC APPARATUS AND LASER-POWER CONTROL METHOD THEREFOR 审中-公开
标题翻译：光盘设备及其激光功率控制方法
公开(公告)号：US20080101205A1
公开(公告)日：2008-05-01
申请号：US11928123
申请日：2007-10-30
申请人： Takashi Usui , Kazuto Kuroda
发明人： Takashi Usui , Kazuto Kuroda
IPC分类号： G11B7/00
CPC分类号： G11B7/1263
摘要： An optical disc apparatus includes a laser-light emitting element configured to emit laser light onto a writable and readable optical disc, a power detecting unit configured to detect a light power of the laser light emitted from the laser-light emitting element, and a power control unit configured to control a driving amount for the laser-light emitting element by feedback control so that the detected light power coincides with a target light power. The power control unit holds a driving amount obtained during a previous recording period until a current recording period, and uses the held driving amount as an initial driving amount for the feedback control in the current recording period when the current recording period starts.
摘要翻译：一种光盘装置，包括：激光发光元件，被配置为向可写和可读光盘发射激光;功率检测单元，被配置为检测从激光发射元件发射的激光的光功率;以及功率控制单元，被配置为通过反馈控制来控制激光发光元件的驱动量，使得检测到的光功率与目标光功率一致。功率控制单元保持在前一个记录周期中获得的驱动量，直到当前记录周期，并且在当前记录周期开始的当前记录周期中，将保持的驱动量用作反馈控制的初始驱动量。

100. 发明授权

US07366085B2 High-density optical recording medium and method of recording data on the same 失效
标题翻译：高密度光记录介质及其记录方法
公开(公告)号：US07366085B2
公开(公告)日：2008-04-29
申请号：US11285117
申请日：2005-11-23
申请人： Kyung-geun Lee , In-sik Park , In-oh Hwang , Chang-min Park
发明人： Kyung-geun Lee , In-sik Park , In-oh Hwang , Chang-min Park
IPC分类号： G11B3/70
CPC分类号： G11B7/0079 , G11B7/00718 , G11B7/1263 , G11B7/24038 , G11B7/24079 , G11B2007/0013
摘要： A high-density optical recording medium and method of recording data on the optical recording medium. The optical recording medium includes a plurality of data recording/reproducing surfaces having reflectances for light passing through a pit area, a land/groove area, and a land/groove area on which data are recorded, of a data recording/reproducing surface included between a light source for emitting light and a recording/reproducing surface selected from the plurality of data recording/reproducing surfaces, the reflectances satisfy the expressions r1≧r2≧r3 and {(r1−r3)/r1}≦0.2, where r1, r2 and r3 are the reflectances of the pit area, the land/groove area and the land groove area on which data are recorded, respectively.
摘要翻译：一种高密度光记录介质和在光记录介质上记录数据的方法。光记录介质包括多个数据记录/再现表面，其具有穿过凹坑区域的光的反射率，纹间/凹槽区域和记录有数据的纹间/凹槽区域，数据记录/再现表面包括在用于发射光的光源和从多个数据记录/再现表面中选择的记录/再现表面，反射满足表达式r 1> = r 2> = r 3和{（r 1 -r 3）/ r 1 } <= 0.2，其中r 1，r 2和r 3分别是记录数据的凹坑区域，焊盘/凹槽区域和焊盘凹槽区域的反射率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式