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41. 发明授权

US07009165B2 Optical detection device for detecting an intensity of a light beam and for detecting data transmitted by the light beam 有权
标题翻译：用于检测光束强度并用于检测由光束传输的数据的光学检测装置
公开(公告)号：US07009165B2
公开(公告)日：2006-03-07
申请号：US10994793
申请日：2004-11-19
申请人： Ingo Hehemann , Werner Brockherde , Armin Kemna , Holger Hofmann , Hartmut Richter
发明人： Ingo Hehemann , Werner Brockherde , Armin Kemna , Holger Hofmann , Hartmut Richter
IPC分类号： G01J1/42
CPC分类号： G11B7/131 , G11B7/126
摘要： An optical detection device for detecting an intensity of a light beam in a detection window and for detecting data transmitted by the light beam includes a first detection diode and an array of at least two second detection diodes in a detection window. In addition, provision is made for a first readout circuit connectable to the first detection diode, for reading out the first detection diode at a first readout speed to detect the data, and for a second readout circuit connectable to the second detection diodes, for reading out the second detection diodes at a second readout speed smaller than the first readout speed, so as to detect the intensity of the light beam. A fundamental consideration underlying the present invention is that although the provision of additional detection diodes in the detection window initially is associated with additional expense and a reduction of the surface area of the detection window which may effectively be utilized for data detection, these disadvantages are outweighed however, by the fact that this array of additional detection diodes in the detection window enables more effective and/or less expensive control of the alignment of the light beam transmitting the data with the detection window.
摘要翻译：用于检测检测窗中的光束的强度并用于检测由光束传输的数据的光学检测装置包括检测窗中的第一检测二极管和至少两个第二检测二极管的阵列。此外，提供可连接到第一检测二极管的第一读出电路，用于以第一读出速度读出第一检测二极管以检测数据，以及用于可连接到第二检测二极管的第二读出电路用于读取以小于第一读出速度的第二读出速度输出第二检测二极管，以便检测光束的强度。本发明的基本思想是，尽管在检测窗口中提供额外的检测二极管最初与额外的费用相关联，并且可以有效地用于数据检测的检测窗口的表面积减少，但是这些缺点超过了然而，通过检测窗口中的该附加检测二极管阵列使得能够使用检测窗口传输数据的光束的对准更有效和/或更便宜的控制这一事实。

42. 发明申请

US20050156099A1 Optical detection device 有权
标题翻译：光学检测装置
公开(公告)号：US20050156099A1
公开(公告)日：2005-07-21
申请号：US10994793
申请日：2004-11-19
申请人： Ingo Hehemann , Werner Brockherde , Armin Kemna , Holger Hofmann , Hartmut Richter
发明人： Ingo Hehemann , Werner Brockherde , Armin Kemna , Holger Hofmann , Hartmut Richter
IPC分类号： G11B7/125 , G11B7/13 , H01L27/00
CPC分类号： G11B7/131 , G11B7/126
摘要： An optical detection device for detecting an intensity of a light beam in a detection window and for detecting data transmitted by the light beam includes a first detection diode and an array of at least two second detection diodes in a detection window. In addition, provision is made for a first readout circuit connectable to the first detection diode, for reading out the first detection diode at a first readout speed to detect the data, and for a second readout circuit connectable to the second detection diodes, for reading out the second detection diodes at a second readout speed smaller than the first readout speed, so as to detect the intensity of the light beam. A fundamental consideration underlying the present invention is that although the provision of additional detection diodes in the detection window initially is associated with additional expense and a reduction of the surface area of the detection window which may effectively be utilized for data detection, these disadvantages are outweighed, however, by the fact that this array of additional detection diodes in the detection window enables more effective and/or less expensive control of the alignment of the light beam transmitting the data with the detection window.
摘要翻译：用于检测检测窗中的光束的强度并用于检测由光束传输的数据的光学检测装置包括检测窗中的第一检测二极管和至少两个第二检测二极管的阵列。此外，提供可连接到第一检测二极管的第一读出电路，用于以第一读出速度读出第一检测二极管以检测数据，以及用于可连接到第二检测二极管的第二读出电路用于读取以小于第一读出速度的第二读出速度输出第二检测二极管，以便检测光束的强度。本发明的基本思想是，虽然在检测窗口中提供额外的检测二极管最初与额外的费用相关联，并且可以有效地用于数据检测的检测窗口的表面积减少，但是这些缺点被超过然而，通过检测窗口中的该附加检测二极管阵列使得能够更有效和/或更便宜地控制传输数据与检测窗口的光束的对准这一事实。

43. 发明授权

US06430141B1 Device for reading from or writing to optical recording media 失效
标题翻译：用于从光学记录介质读取或写入光学记录介质的设备
公开(公告)号：US06430141B1
公开(公告)日：2002-08-06
申请号：US09288390
申请日：1999-04-08
申请人： Lieu Kim Dang , Christoph Dietrich , Hartmut Richter , Heinz-Jörg Schroeder
发明人： Lieu Kim Dang , Christoph Dietrich , Hartmut Richter , Heinz-Jörg Schroeder
IPC分类号： G11B700
CPC分类号： G11B7/1381 , G11B7/0909 , G11B7/094 , G11B7/1353 , G11B7/1356
摘要： A device for reading from or writing to optical recording media comprising a scanning beam generation means, a focusing means and a photodetector comprising at least two detector zones and serving to receive zeroth- and first-order diffraction beams from the recording medium. The object of the invention is to obtain a reduction in interfering influences in a signal derived from signals of the photodetector, a signal such as, for example, a focus error signal or a track error signal. This object is achieved by virtue of the fact that a beam splitting means is provided, which splits a light spot falling onto the photodetector into two separate partial spots. The device is, for example, a CD or DVD player, but in particular a recording and reproduction device for so-called DVD-RAMs or similar optical recording media.
摘要翻译：一种用于从光学记录介质读取或写入光学记录介质的设备，包括扫描光束产生装置，聚焦装置和光电检测器，其包括至少两个检测器区域，并用于接收来自记录介质的零级和一级衍射光束。本发明的目的是获得从光电检测器的信号导出的信号中的干扰影响的减小，诸如聚焦误差信号或轨道误差信号的信号。该目的通过以下事实实现：提供分束装置，其将落在光电检测器上的光斑分成两个分开的局部光斑。该设备例如是CD或DVD播放器，但是特别是用于所谓的DVD-RAM或类似光学记录介质的记录和再现设备。

44. 发明授权

US06304542B1 Compact dual wavelength optical pickup head 有权
标题翻译：紧凑型双波长光学拾音头
公开(公告)号：US06304542B1
公开(公告)日：2001-10-16
申请号：US09173961
申请日：1998-10-16
申请人： Lieu-Kim Dang , Christoph Dietrich , Hartmut Richter , Heinz-Joerg Schroeder
发明人： Lieu-Kim Dang , Christoph Dietrich , Hartmut Richter , Heinz-Joerg Schroeder
IPC分类号： G11B700
CPC分类号： G11B7/127 , G11B7/0909 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/1356 , G11B7/1372 , G11B2007/0006
摘要： A dual wavelength optical pickup head in which as many same parts as possible are used as well to direct light beams incident than light beams reflected from a reflective layer of an optical disk. The reuse of as many parts as possible allows to and a second wavelength emitted by a first and a second light source to an optical disk, a dual focus lens objective for focusing said light beams on a layer of said optical disk and a single detector which allows to detect light beams of either said first or said second wavelength.
摘要翻译：使用尽可能多的相同部分的双波长光学拾取头来引导入射的光束比从光盘的反射层反射的光束。尽可能多的部分的再利用允许由第一和第二光源发射到光盘的第二波长和用于将所述光束聚焦在所述光盘的层上的双焦点透镜物镜和单个检测器允许检测所述第一或所述第二波长的光束。

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