公开(公告)号：EP0589611A3

公开(公告)日：1994-08-17

申请号：EP93307262.1

申请日：1993-09-15

申请人： SONY CORPORATION

发明人： Ando, Nobuhiko, c/o Intellectual Property Div. ,  Ando, Ryo, c/o Intellectual Property Div. ,  Fujiie, Kazuhiko, c/o Intellectual Property Div.

IPC分类号： G11B7/00 ,  G11B11/10 ,  G11B7/13 ,  G11B7/09 ,  G11B7/12

CPC分类号： G11B7/131 ,  G11B7/005 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0941 ,  G11B7/0943 ,  G11B11/10597 ,  G11B13/04 ,  G11B19/00 ,  G11B19/12

摘要： A recording and/or reproducing apparatus for a disc-shaped optical recording medium includes a rotation drive mechanism, a head device, a discriminating device, a first processing device, a second processing device, a third processing device and a controller. A disc-shaped optical recording medium is loaded on the rotation drive mechanism and is run in rotation at a constant linear velocity. The head device includes a laser light source and a photodetector unit and is movable in the radial direction of the disc-shaped optical recording medium for recording/reproducing information signal on or from the disc-shaped optical recording medium. The discriminating device discriminates the type of the disc-shaped optical recording medium loaded on the rotation driving device. The photodetector unit includes first, second and third photodetectors (I, J, 81). The first processing circuit (83a) takes a difference between output signals from the first photodetector and those from the second photodetector. The second processing circuit (82a) takes a sum of output signals from the first photodetector and those from the second photodetector. The third processing circuit (82b-82e, 83c, 83d) generates an error signal based on an output signal from the third photodetector. The controller selectively changes over an output from the first processing circuit to an output from the second processing circuit and vice versa based on a detection output from the discriminating device to produce reproducing signals.

摘要翻译： 用于盘形光记录介质的记录和/或再现装置包括旋转驱动机构，头装置，识别装置，第一处理装置，第二处理装置，第三处理装置和控制器。 圆盘形光记录介质装载在旋转驱动机构上，并以恒定的线速旋转。 头装置包括激光光源和光电检测器单元，并且可在盘形光学记录介质的径向方向上移动，用于在盘形光学记录介质上记录/再现信息信号。 识别装置鉴别装载在旋转驱动装置上的盘形光学记录介质的类型。 光检测器单元包括第一，第二和第三光电检测器（I，J，81）。 第一处理电路（83a）从第一光电检测器和来自第二光电检测器的输出信号之间取差。 第二处理电路（82a）取第一光电检测器和来自第二光电检测器的输出信号的和。 第三处理电路（82b-82e，83c，83d）根据来自第三光检测器的输出信号产生误差信号。 控制器基于来自识别装置的检测输出，选择性地将来自第一处理电路的输出切换到来自第二处理电路的输出，反之亦然，以产生再现信号。

公开(公告)号：EP0589611B1

公开(公告)日：1999-05-19

申请号：EP93307262.1

申请日：1993-09-15

申请人： SONY CORPORATION

发明人： Ando, Nobuhiko, c/o Intellectual Property Div. ,  Ando, Ryo, c/o Intellectual Property Div. ,  Fujiie, Kazuhiko, c/o Intellectual Property Div.

IPC分类号： G11B7/00 ,  G11B11/10 ,  G11B7/13 ,  G11B7/09 ,  G11B7/12

CPC分类号： G11B7/131 ,  G11B7/005 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0941 ,  G11B7/0943 ,  G11B11/10597 ,  G11B13/04 ,  G11B19/00 ,  G11B19/12

公开(公告)号：EP0589611A2

公开(公告)日：1994-03-30

申请号：EP93307262.1

申请日：1993-09-15

申请人： SONY CORPORATION

发明人： Ando, Nobuhiko, c/o Intellectual Property Div. ,  Ando, Ryo, c/o Intellectual Property Div. ,  Fujiie, Kazuhiko, c/o Intellectual Property Div.

IPC分类号： G11B7/00 ,  G11B11/10 ,  G11B7/13 ,  G11B7/09 ,  G11B7/12

CPC分类号： G11B7/131 ,  G11B7/005 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/0941 ,  G11B7/0943 ,  G11B11/10597 ,  G11B13/04 ,  G11B19/00 ,  G11B19/12

摘要： A recording and/or reproducing apparatus for a disc-shaped optical recording medium includes a rotation drive mechanism, a head device, a discriminating device, a first processing device, a second processing device, a third processing device and a controller. A disc-shaped optical recording medium is loaded on the rotation drive mechanism and is run in rotation at a constant linear velocity. The head device includes a laser light source and a photodetector unit and is movable in the radial direction of the disc-shaped optical recording medium for recording/reproducing information signal on or from the disc-shaped optical recording medium. The discriminating device discriminates the type of the disc-shaped optical recording medium loaded on the rotation driving device. The photodetector unit includes first, second and third photodetectors (I, J, 81). The first processing circuit (83a) takes a difference between output signals from the first photodetector and those from the second photodetector. The second processing circuit (82a) takes a sum of output signals from the first photodetector and those from the second photodetector. The third processing circuit (82b-82e, 83c, 83d) generates an error signal based on an output signal from the third photodetector. The controller selectively changes over an output from the first processing circuit to an output from the second processing circuit and vice versa based on a detection output from the discriminating device to produce reproducing signals.

摘要翻译： 一种用于盘形光学记录介质的记录和/或再现设备包括：旋转驱动机构，一个头装置，鉴别装置，第一处理装置，第二处理装置，第三处理装置和控制器。 一种盘形光学记录介质被装载在旋转驱动机构和旋转以恒定的线速度运行。 的打印头装置包括一个激光光源和光电检测器单元，并且在用于记录/盘形光记录介质上或从盘形光记录介质再现信息信号的径向方向上移动。 所述判别装置判别装载在旋转驱动装置上的盘形光记录介质的类型。 光电检测器单元包括：第一，第二和第三光电检测器（I，J，81）。 第一处理电路（83A）取从所述第一光电检测器的输出信号和来自第二光检测器之间的差异。 第二处理电路（82A）取从所述第一光检测器和那些来自第二光检测器的输出信号的总和。 第三处理电路（82B-82E，83C，83D）的基础上从所述第三光检测器信号的输出产生误差信号的速率。 控制器选择性地从所述第二处理电路改变到输出从第一处理电路，输出到反之亦然基于从鉴别装置的检测输出以产生再现信号。