公开(公告)号：US20070263507A1

公开(公告)日：2007-11-15

申请号：US11706954

申请日：2007-02-16

申请人： Ji Seon Baek ,  Otsuka Tatsuhiro ,  Jin Woo Yu ,  Young Jae Park

发明人： Ji Seon Baek ,  Otsuka Tatsuhiro ,  Jin Woo Yu ,  Young Jae Park

IPC分类号： G11B5/00

CPC分类号： G11B7/1267

摘要： An optical disc apparatus and a method of determining an optimal writing power are provided to reduce the time required for Optimum Power Calibration (OPC) and reduce the difference between OPC results. The optical disc apparatus includes a light source which emits a laser beam to write/read data to/from an optical disc; a reader which receives a laser beam reflected from the optical disc and reads data written on the optical disc; and a controller which, to reduce the difference between OPC results, controls the light source to write test data more than once for determining an optimal writing power, controls the reader to read the test data, measures read quality of the test data, and detects an optimal writing power based on the measured read quality.

摘要翻译： 提供了一种确定最佳写入功率的光盘装置和方法，以减少最佳功率校准（OPC）所需的时间并减少OPC结果之间的差异。 光盘装置包括发射激光束以从光盘写入/读取数据的光源; 接收从光盘反射的激光束并读取写在光盘上的数据的读取器; 以及控制器，为了减少OPC结果的差异，控制光源多次写入测试数据以确定最佳写入功率，控制读取器读取测试数据，测量测试数据的读取质量并检测 基于测量的读取质量的最佳写入功率。

公开(公告)号：US07830763B2

公开(公告)日：2010-11-09

申请号：US11362714

申请日：2006-02-28

申请人： Ji Seon Baek ,  Jin Woo Yu ,  Otsuka Tatsuhiro

发明人： Ji Seon Baek ,  Jin Woo Yu ,  Otsuka Tatsuhiro

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736

摘要： An optical disc apparatus is provided with optimum power control (OPC) to determine an optimum laser power needed for recording data on an optical disc. Such an apparatus comprises a controller to determine optimum writing power in such a way of re-establishing a new test zone when an erasing error is detected on an initially established test zone in order to perform the OPC. When the erasing error is detected on a test zone of an OPC zone, a new test zone is re-established, so that OPC is performed rapidly while reducing an error frequency occurring when optimum writing power is not determined.

摘要翻译： 光盘装置具有最佳功率控制（OPC）以确定在光盘上记录数据所需的最佳激光功率。 这样的装置包括一个控制器，以便在最初建立的测试区域上检测到擦除错误以便执行OPC时，以这种重新建立新的测试区域的方式确定最佳写入功率。 当在OPC区域的测试区域上检测到擦除错误时，将重新建立新的测试区域，以便快速执行OPC，同时减少最佳写入功率未确定时发生的错误频率。

公开(公告)号：US20070195679A1

公开(公告)日：2007-08-23

申请号：US11657087

申请日：2007-01-24

申请人： Ji Seon Baek ,  Otsuka Tatsuhiro ,  Kyung Geun Lee

发明人： Ji Seon Baek ,  Otsuka Tatsuhiro ,  Kyung Geun Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  H01S5/0683

摘要： An optical disc apparatus and a method for performing optical power study thereof can prevent errors for a power study result, which may be generated in a condition that the output power of a laser diode (LD) is saturated at a high temperature, in which the power study detects output characteristics of the LD. The optical disc apparatus includes a laser output device which outputs a laser beam in response to a light output control signal, a sensor which detects some of the outputted laser beam to output a signal corresponding to the outputted laser beam, and a controller which applies the light output control signal of a certain range to the laser output device and which calculates characteristics of the laser output power which is outputted from the laser output device in response to the light output control signal, based on the output signals of the sensor, which correspond to the light output control signal, and whether the laser output device is in a saturated state. Therefore, the optical disc apparatus can prevent errors of the result of the power study procedure generated due to power saturation of the LD at a relatively high temperature, and can correctly obtain the result of the power study procedure at a relatively low temperature.

摘要翻译： 用于进行光功率研究的光盘装置和方法可以防止在激光二极管（LD）的输出功率在高温下饱和的条件下产生的功率研究结果的误差，其中 电力研究检测LD的输出特性。 光盘装置包括：响应于光输出控制信号输出激光束的激光输出装置;检测输出的激光束的一部分输出与输出的激光束对应的信号的传感器;以及控制器， 基于传感器的输出信号，对激光输出装置输出一定范围的光输出控制信号，并根据传感器的输出信号计算从激光输出装置输出的激光输出功率的特性 到光输出控制信号，以及激光输出装置是否处于饱和状态。 因此，光盘装置可以防止在相对较高的温度下由于LD的功率饱和而产生的功率研究过程的结果的误差，并且可以在相对较低的温度下正确地获得功率研究程序的结果。

公开(公告)号：US20060285460A1

公开(公告)日：2006-12-21

申请号：US11370881

申请日：2006-03-09

申请人： Jin Yu ,  Otsuka Tatsuhiro ,  Jong Ko ,  Ji Baek

发明人： Jin Yu ,  Otsuka Tatsuhiro ,  Jong Ko ,  Ji Baek

IPC分类号： G11B20/10 ,  G11B7/12

CPC分类号： G11B20/1217 ,  G11B7/00736 ,  G11B7/1267 ,  G11B2020/1275 ,  G11B2020/1297 ,  G11B2220/216

摘要： A method of managing optimum power control (OPC) data in a lead-in zone of a rewritable high-density optical disc, wherein an OPC back data zone is allocated in the lead-in zone of the rewritable high-density optical disc and OPC data is written in the OPC back data zone so that a subsequent OPC process can be immediately performed based on the written OPC data. The method includes allocating a specified zone used in performing an OPC process within the lead-in zone of the rewritable high-density optical disc, writing OPC data for the OPC process in the specified zone, reading the OPC data written in the specified zone, and performing the OPC process based on the read OPC data.

摘要翻译： 一种在可重写高密度光盘的导入区域中管理最佳功率控制（OPC）数据的方法，其中OPC可重写数据区被分配在可重写高密度光盘和OPC的导入区中 将数据写入OPC back数据区，以便可以基于写入的OPC数据立即执行后续OPC过程。 该方法包括在可重写高密度光盘的导入区中分配用于执行OPC处理的指定区域，在指定区域中写入用于OPC处理的OPC数据，读取写入指定区域中的OPC数据， 并根据读取的OPC数据执行OPC过程。

公开(公告)号：US20070189345A1

公开(公告)日：2007-08-16

申请号：US11592170

申请日：2006-11-03

申请人： Jong-Jin Ko ,  Otsuka Tatsuhiro

发明人： Jong-Jin Ko ,  Otsuka Tatsuhiro

IPC分类号： H01S3/13 ,  H01S3/00

CPC分类号： H01S5/06832 ,  G11B7/1263

摘要： An apparatus and method for controlling power of a laser diode (LD) are provided, which allow the power of the laser diode (LD) affecting a performance of an optical recording apparatus to be constantly maintained at an optimum state, regardless of a variation in temperature. The method for controlling power of a laser diode (LD) used for an optical recording apparatus to record data in an optical recording device comprises: a) sampling the LD's power generated when data is recorded; and b) compensating for a variation of the LD's power changed according to sampling locations.

摘要翻译： 提供了一种用于控制激光二极管（LD）的功率的装置和方法，其使得能够将影响光学记录装置的性能的激光二极管（LD）的功率恒定地保持在最佳状态，而不管 温度。 用于控制光记录装置中用于在光记录装置中记录数据的激光二极管（LD）的功率的方法包括：a）对记录数据时产生的LD的功率进行采样; 以及b）根据采样位置补偿LD功率的变化。

公开(公告)号：US20070002706A1

公开(公告)日：2007-01-04

申请号：US11362714

申请日：2006-02-28

申请人： Ji Baek ,  Jin Yu ,  Otsuka Tatsuhiro

发明人： Ji Baek ,  Jin Yu ,  Otsuka Tatsuhiro

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/00736

摘要： An optical disc apparatus is provided with optimum power control (OPC) to determine an optimum laser power needed for recording data on an optical disc. Such an apparatus comprises a controller to determine optimum writing power in such a way of re-establishing a new test zone when an erasing error is detected on an initially established test zone in order to perform the OPC. When the erasing error is detected on a test zone of an OPC zone, a new test zone is re-established, so that OPC is performed rapidly while reducing an error frequency occurring when optimum writing power is not determined.

摘要翻译： 光盘装置具有最佳功率控制（OPC）以确定在光盘上记录数据所需的最佳激光功率。 这样的装置包括一个控制器，以便在最初建立的测试区域上检测到擦除错误以便执行OPC时，以这种重新建立新的测试区域的方式确定最佳写入功率。 当在OPC区域的测试区域上检测到擦除错误时，将重新建立新的测试区域，以便快速执行OPC，同时减少最佳写入功率未确定时发生的错误频率。