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

WO2001080229A2 OPTICAL DATA STORAGE SYSTEM WITH MULTIPLE LAYER MEDIA 审中-公开
标题翻译：具有多层介质的光学数据存储系统
公开(公告)号：WO2001080229A2
公开(公告)日：2001-10-25
申请号：PCT/US2001011622
申请日：2001-04-09
申请人： SIROS TECHNOLOGIES, INC.
发明人： SIROS TECHNOLOGIES, INC. , HESSELINK, Lambertus , DAIBER, Andrew, J. , FERRIER, Herman, A. , GHOSE, Sanjoy , KRIDL, Thomas, A. , HONDA, Tokyuki , MCDONALD, Mark, E. , MORELLI, Michael, V. , AMBLE, James, R. , LIPSON, Matthew , NISHIMURA, Shunichi , SOCHAVA, Sergei , VOLZ, LeRoy, A.
IPC分类号： G11B7/09
CPC分类号： G11B7/0065 , G11B7/007 , G11B7/0938 , G11B7/24 , G11B7/2433 , G11B7/245 , G11B7/246 , G11B7/2472 , G11B7/252 , G11B7/2595 , G11B2007/0013
摘要： An optical information storage system using optical storage media including multiple data layers or stacks wherein each of the multiple data stacks has a storage density comparable to a conventional single layer optical disk. The optical data storage system comprises an optical medium having a single dedicated servo layer and multiple data stacks which each contain an embedded servo format, a servo laser beam positioned to maintain a first focus point on the dedicated servo reference layer, a read-write laser beam positioned to maintain a second focus point on one of the data stacks, a first, dedicated servo system which provides focus and tracking error correction according to error signals generated from the dedicated servo layer, and a second, embedded servo system which provides focus and tracking error correction according to error signals generated from the data stacks. The dedicated servo layer, in different embodiments of the invention, may be positioned either below or above the data stacks in the optical medium, or interposed between data stacks. The data stacks may comprise discrete physical data layers or "e;virtual"e; data layers defined by a format hologram. The servo and read-write lasers may differ in wavelength and/or polarization.
摘要翻译：一种使用包括多个数据层或堆叠的光学存储介质的光学信息存储系统，其中多个数据堆栈中的每一个具有与常规单层光盘相当的存储密度。光学数据存储系统包括具有单个专用伺服层的光学介质和各自包含嵌入式伺服格式的多个数据堆栈，定位成将第一焦点保持在专用伺服参考层上的伺服激光束，读写激光器光束定位成将第二焦点保持在数据堆叠之一上，第一专用伺服系统，其根据从专用伺服层产生的误差信号提供聚焦和跟踪误差校正;以及第二嵌入式伺服系统，其提供焦点和根据从数据堆产生的误差信号进行跟踪误差校正。在本发明的不同实施例中的专用伺服层可以位于光学介质中的数据堆的下方或上方，或者位于数据堆之间。数据堆栈可以包括由格式全息图定义的离散物理数据层或“虚拟”数据层。伺服和读写激光器的波长和/或极化可能不同。

2. 发明申请

WO2001057975A3 NEAR-FIELD LASER AND DETECTOR APPARATUS AND METHOD 审中-公开
公开(公告)号：WO2001057975A3
公开(公告)日：2001-08-09
申请号：PCT/US2001002933
申请日：2001-01-29
申请人： SIROS TECHNOLOGIES, INC.
发明人： SIROS TECHNOLOGIES, INC. , THORNTON, Robert, L. , HESSELINK, Lambertus
IPC分类号： G11B7/12
摘要： A near-field laser and detector apparatus and method wherein both writing and reading of optical media can be carried out using the same laser operating in a single mode for both read and write operations. The single operational mode can be utilized with both edge emitting and surface emitting laser configurations, and allows readout via rear facet output power variation or by voltage variation across the laser. A small aperture laser is operated during read and write operations at a bias current which is higher than the threshold currents associated with feedback from high and low reflectivity regions of an optical medium. The bias current and laser structure provide a relatively high, continuous output power from the front emission facet of the laser to facilitate writing, while providing substantial fluctuation or change in output power from the rear emission facet to facilitate readout.

3. 发明申请

WO2001057861A2 NEAR-FIELD OPTICAL HEAD SYSTEM WITH INTEGRATED SLIDER AND LASER 审中-公开
标题翻译：具有集成滑块和激光的近场光学头系统
公开(公告)号：WO2001057861A2
公开(公告)日：2001-08-09
申请号：PCT/US2001003123
申请日：2001-01-30
申请人： SIROS TECHNOLOGIES, INC.
发明人： SIROS TECHNOLOGIES, INC. , THORNTON, Robert, L. , STINSON, Douglas, G. , MALMHALL, Roger, K. , BASHAW, Matthew
IPC分类号： G11B7/12
CPC分类号： H01S5/18311 , G11B7/122 , G11B7/22 , H01S5/02276 , H01S5/02284 , H01S5/0261 , H01S5/18308 , H01S5/18394
摘要： A near-field optical system having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easily attached to the read arm of an optical read/write device without requiring attachment of separate laser elements, and without micropositioning or use of optical microscopy for positioning the lasers. The optical head comprising a single semiconductor substrate including a first region which defines a slider having an air bearing surface, and at least one second, laser region which defines a diode laser, with the diode laser having an emission face which is substantially co-planar with the air bearing surface. The semiconductor substrate preferably includes an active layer, a p-clad layer or reflective layer adjacent a first side of the active region, an n-clad layer or reflective layer adjacent a second side of the active layer, and an n-semiconductor layer adjacent the n-clad layer. A slider region of the semiconductor substrate includes an air bearing surface, adjacent the p-clad layer, which is aerodynamically structured and configured to define a slider. The integral lasers include a p-electrical contact adjacent to the p-clad layer and proximate to the laser emission face, and an n-electrical contact adjacent to the n-clad layer or an n-semiconductor layer. The laser mode is defined by oxidized or ion-diffusion regions associated with the p-clad layer or n-clad layer of the laser. A conductive via through the substrate allows electrical connection with the p-side contact to be achieved from the n-side of the substrate. The optical head is used in a near-field optical system with an optical medium having a phase change layer.
摘要翻译：具有一个或多个固态激光器和空气动力学形状的滑块的近场光学系统，其包括由相同的基底半导体材料制造的单个集成的单片器件。单片光学头可以快速且容易地附接到光学读/写设备的读取臂，而不需要附加单独的激光元件，并且不需要定位微距定位或使用光学显微镜来定位激光器。该光学头包括单个半导体衬底，该半导体衬底包括限定具有空气支承表面的滑块的第一区域和限定二极管激光器的至少一个第二激光区域，二极管激光器具有基本共面的发射面与空气轴承表面。半导体衬底优选地包括有源层，邻近有源区的第一侧的p覆盖层或反射层，邻近有源层的第二侧的n包层或反射层以及邻近的n半导体层 n覆层。半导体衬底的滑块区域包括邻近p覆盖层的空气支承表面，其空气动力学构造并构造成限定滑块。整体激光器包括邻近p包覆层并且靠近激光发射面的p电接触以及与n包层或n半导体层相邻的n电接触。激光模式由与激光的p包覆层或n包覆层相关联的氧化或离子扩散区域限定。通过基板的导电通孔允许从基板的n侧实现与p侧接触的电连接。光头用于具有相变层的光学介质的近场光学系统中。

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