公开(公告)号：US08339909B2

公开(公告)日：2012-12-25

申请号：US13258538

申请日：2010-05-21

申请人： Kenya Nakai ,  Masayuki Ohmaki ,  Nobuo Takeshita

发明人： Kenya Nakai ,  Masayuki Ohmaki ,  Nobuo Takeshita

IPC分类号： G11B7/00

CPC分类号： G11B7/005 ,  G11B7/131 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10222 ,  G11B20/10296 ,  G11B20/10416 ,  G11B2220/2595

摘要： A first signal is detected from the central part of a light beam returning from a super-resolution optical disc; a second signal is detected from a peripheral part in a direction corresponding to a track on the super-resolution optical disc; a gain adjustment unit is provided to adjust the amplitude of the first signal; a subtraction unit is provided to generate a third signal by subtracting, from the second signal, the first signal with the amplitude adjusted by the gain adjustment unit; and an unit is provided to generate a reproduced signal by combining the first signal and a signal obtained by delaying the third signal.

摘要翻译： 从从超分辨率光盘返回的光束的中心部分检测第一信号; 在与超分辨率光盘上的轨道对应的方向上从外围部分检测第二信号; 提供增益调整单元来调整第一信号的幅度; 减法单元被提供以通过从第二信号中减去由增益调整单元调整的幅度的第一信号来产生第三信号; 并且提供单元以通过组合第一信号和通过延迟第三信号而获得的信号来产生再现信号。

公开(公告)号：US20120014237A1

公开(公告)日：2012-01-19

申请号：US13258538

申请日：2010-05-21

申请人： Kenya Nakai ,  Masayuki Ohmaki ,  Nobuo Takeshita

发明人： Kenya Nakai ,  Masayuki Ohmaki ,  Nobuo Takeshita

IPC分类号： G11B20/10

CPC分类号： G11B7/005 ,  G11B7/131 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10222 ,  G11B20/10296 ,  G11B20/10416 ,  G11B2220/2595

摘要： A first signal is detected from the central part of a light beam returning from a super-resolution optical disc; a second signal is detected from a peripheral part in a direction corresponding to a track on the super-resolution optical disc; a gain adjustment unit is provided to adjust the amplitude of the first signal; a subtraction unit is provided to generate a third signal by subtracting, from the second signal, the first signal with the amplitude adjusted by the gain adjustment unit; and an unit is provided to generate a reproduced signal by combining the first signal and a signal obtained by delaying the third signal.

摘要翻译： 从从超分辨率光盘返回的光束的中心部分检测第一信号; 在与超分辨率光盘上的轨道对应的方向上从外围部分检测第二信号; 提供增益调整单元来调整第一信号的幅度; 减法单元被提供以通过从第二信号中减去由增益调整单元调整的幅度的第一信号来产生第三信号; 并且提供单元以通过组合第一信号和通过延迟第三信号而获得的信号来产生再现信号。