专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2006067700A1 OPTICAL PICK-UP UNIT FOR USE IN A MULTI-DISC OPTICAL PLAYER 审中-公开
标题翻译：用于多盘光学播放器的光学拾取单元
公开(公告)号：WO2006067700A1
公开(公告)日：2006-06-29
申请号：PCT/IB2005/054262
申请日：2005-12-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BOUWMAN, Lambertus, J., M. , VAN ECK, Dirk, C. , JUTTE, Petrus, T. , VREHEN, Joris, J.
发明人： BOUWMAN, Lambertus, J., M. , VAN ECK, Dirk, C. , JUTTE, Petrus, T. , VREHEN, Joris, J.
IPC分类号： G11B7/135
CPC分类号： G11B7/1369 , G11B7/0901
摘要： Optical pick-up unit for scanning a first type of record carrier (12) and/or at least a second type of record carrier (12) and using an error tracking signal, the first type of record carrier (12) having a first track pitch (18), the second type of record carrier (12) having a second track pitch (19), the first and the second track pitch (18) being different from each other, the unit comprising: at least one radiation source (22), emitting at least one radiation beam (24) having a wavelength and the radiation beam (24) propagating along an optical path (30), a grating element (26) having a grating structure for receiving the radiation beam (24) to create an n th order diffracted radiation beam and at least a (m) th /(1) order diffracted radiation beam (28) when the radiation beam (24) passes through the grating element (26), the distance between the spots (72, 74) of the at least (m) th /(1) th order diffracted radiation beam (28) and the track on which the spot (70) of the n th order diffracted radiation beam is positioned being variable by the grating element (26), the grating element (26) comprising a layer (84) of material (85) with a first optical state and at least a second optical state and a first transparent electrode (86) and at least a second transparent electrode (88). Both transparent electrodes comprise aligned electrode-stripes, wherein the electrode-stripes of the first electrode (86) and of the second electrode (88) have different orientations with respect to one another.
摘要翻译：用于扫描第一类型的记录载体（12）和/或至少第二类型的记录载体（12）并使用误差跟踪信号的光学拾取单元，所述第一类型的记录载体（12）具有第一轨道间距（18），具有第二轨道间距（19）的第二类型的记录载体（12），第一和第二轨道间距（18）彼此不同，该单元包括：至少一个辐射源发射具有波长的至少一个辐射束（24）和沿着光路（30）传播的辐射束（24）;具有用于接收辐射束（24）的光栅结构的光栅元件（26），以产生第二级衍射辐射束和至少一个第（m）第 /（1）级衍射辐射束（28），当辐射束（24）穿过光栅元件（26），至少（m）第 /（1）级衍射辐射束（28）的光斑（72,74）之间的距离，和轨道上其中第n级次级衍射辐射束的光点（70）被光栅元件（26）可变，所述光栅元件（26）包括材料层（84）具有第一光学状态和至少第二光学状态以及第一透明电极（86）和至少第二透明电极（88）。两个透明电极包括对准的电极条，其中第一电极（86）和第二电极（88）的电极条具有彼此不同的取向。

2. 发明申请

WO2006075270A3 METHOD OF SCANNING OPTICAL RECORD CARRIERS OF DIFFERENT TYPES, AND OPTICAL PICK-UP UNIT FOR USE IN A MULTI-DISC OPTICAL PLAYER 审中-公开
公开(公告)号：WO2006075270A3
公开(公告)日：2006-07-20
申请号：PCT/IB2006/050056
申请日：2006-01-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BOUWMAN, Lambertus, J., M. , JUTTE, Petrus, T. , VAN ECK, Dirk, C.
发明人： BOUWMAN, Lambertus, J., M. , JUTTE, Petrus, T. , VAN ECK, Dirk, C.
IPC分类号： G11B7/09 , G11B7/13
摘要： A method of scanning a first type of record carrier (12) and/or at least a second type of record carrier (12), using a radial tracking error signal and a focus error signal, the first type of record carrier (12) having a first track pitch (62), the second type of record carrier (12) having a second track pitch (63), in which the first and the second track pitches are different from each other, the method comprising the steps of directing a main radiation beam and at least two satellite radiation beams onto an information layer (34) of the first type of record carrier (12) or the second type of record carrier (12) to form a main radiation beam spot (36) and at least two satellite beam spots on said information layer (34), detecting the main radiation beam spot and the satellite radiation beam spots by means of detection element components (48,50,52) of a detection element (40), after being reflected from the information layer (34) of the first or second type of record carrier (12), and positioning the satellite radiation beam spots during scanning of the first type of record carrier (12) at a distance (70) to the track (56) on which the main radiation beam spot (36) is positioned. The distance (70) is chosen in dependence on the track pitch (63) of the second type of record carrier (12), and the focus error signal is calculated by using signals generated from the detection element components (48,50,52) that detect the satellite radiation beam spots so as to reduce crosstalk of the first type of record carrier (12).

3. 发明申请

WO2006075270A2 METHOD OF SCANNING RECORD CARRIERS OF DIFFERENT TYPES, AND OPTICAL PICK-UP UNIT FOR USE IN A MULTI-DISC OPTICAL PLAYER 审中-公开
标题翻译：扫描不同类型的记录载体的方法和用于多光盘播放器的光学拾取单元
公开(公告)号：WO2006075270A2
公开(公告)日：2006-07-20
申请号：PCT/IB2006050056
申请日：2006-01-06
申请人： KONINKL PHILIPS ELECTRONICS NV , BOUWMAN LAMBERTUS J M , JUTTE PETRUS T , VAN ECK DIRK C
发明人： BOUWMAN LAMBERTUS J M , JUTTE PETRUS T , VAN ECK DIRK C
IPC分类号： G11B7/13
CPC分类号： G11B7/0903 , G11B7/0908 , G11B7/131 , G11B2007/0006
摘要： A method of scanning a first type of record carrier (12) and/or at least a second type of record carrier (12), using a radial tracking error signal and a focus error signal, the first type of record carrier (12) having a first track pitch (62), the second type of record carrier (12) having a second track pitch (63), in which the first and the second track pitches are different from each other, the method comprising the steps of directing a main radiation beam and at least two satellite radiation beams onto an information layer (34) of the first type of record carrier (12) or the second type of record carrier (12) to form a main radiation beam spot (36) and at least two satellite beam spots on said information layer (34), detecting the main radiation beam spot and the satellite radiation beam spots by means of detection element components (48,50,52) of a detection element (40), after being reflected from the information layer (34) of the first or second type of record carrier (12), and positioning the satellite radiation beam spots during scanning of the first type of record carrier (12) at a distance (70) to the track (56) on which the main radiation beam spot (36) is positioned. The distance (70) is chosen in dependence on the track pitch (63) of the second type of record carrier (12), and the focus error signal is calculated by using signals generated from the detection element components (48,50,52) that detect the satellite radiation beam spots so as to reduce crosstalk of the first type of record carrier (12).
摘要翻译：一种使用径向跟踪误差信号和聚焦误差信号扫描第一类型的记录载体（12）和/或至少第二类型的记录载体（12）的方法，所述第一类型的记录载体（12）具有第一轨道间距（62），具有第二轨道间距（63）的第二类型的记录载体（12），其中第一和第二轨道间距彼此不同，该方法包括以下步骤：辐射束和至少两个卫星辐射束到第一类型的记录载体（12）或第二类型的记录载体（12）的信息层（34）上以形成主辐射束点（36）和至少两个在所述信息层（34）上的卫星光束点，通过检测元件（40）的检测元件分量（48,50,52）检测主辐射束点和卫星辐射束点，从信息反射后第一或第二类型的记录载体（12）的层（34），和在与第一类型的记录载体（12）扫描距离（70）到主辐射束点（36）所在的轨道（56）的距离处，定位卫星辐射束斑点。根据第二类型的记录载体（12）的轨道间距（63）来选择距离（70），并且通过使用从检测元件组件（48,50,52）产生的信号来计算聚焦误差信号，其检测卫星辐射束点，以便减少第一类型的记录载体（12）的串扰。

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