公开(公告)号：WO1995017748A1

公开(公告)日：1995-06-29

申请号：PCT/US1994014681

申请日：1994-12-20

Applicant: TAMARACK STORAGE DEVICES

Inventor： TAMARACK STORAGE DEVICES ,  DEWALD, Duane, Scott

IPC: G11B07/00

CPC classification number: G11B7/12 ,  G03H1/265 ,  G03H2001/0216 ,  G03H2260/12 ,  G11B7/0065

Abstract: A disk-based holographic storage media includes a disk (10) fabricated from a holographic storage media (16). A plurality of holographic storage regions (54) are defined within the storage media (16) such that pages of holographic data (11) can be stored therein in the form of an interference grating. A Read/Write head (32) is provided for containing the optics necessary to read information from the holographic storage region (54) and write information thereto. The Read/Write head (32) moves along the radial direction of the disk (10) with the disk (10) stepped by a motor (12) to discrete angular positions, comprising the address of the storage region (54) along with radial positioning of the Read/Write head (32). In one embodiment each of the storage regions (54) is diamond-shaped and oriented such that the apexes thereof are oriented along a common radial column line. Adjacent columns have the storage regions (54) disposed in alternating rows or tracks. This allows for a higher packing density. In another embodiment storage regions are aligned with one side parallel to the tangent of the associated arcuate row. In yet another embodiment a two-dimensional non-disk medium is accessed by x, y positioning of the head.

Abstract translation: 基于盘的全息存储介质包括由全息存储介质（16）制造的盘（10）。 多个全息存储区域（54）被限定在存储介质（16）内，使得全息数据（11）的页面可以以干涉光栅的形式存储在其中。 读/写头（32）被提供用于容纳从全息存储区域（54）读取信息所必需的光学信息，并向其写入信息。 读/写磁头（32）沿着磁盘（10）的径向方向移动，其中磁盘（10）由电动机（12）分级到离散的角位置，包括存储区域（54）的地址以及径向 读/写头（32）的定位。 在一个实施例中，每个存储区域（54）是菱形的并且被定向成使得其顶点沿着共同的径向列线定向。 相邻的列具有以交替的行或轨道设置的存储区域（54）。 这允许更高的包装密度。 在另一个实施例中，存储区域与平行于相关弧形行的切线的一侧对齐。 在另一个实施例中，通过头部的x，y定位访问二维非磁盘介质。

公开(公告)号：WO1995002881A1

公开(公告)日：1995-01-26

申请号：PCT/US1994007932

申请日：1994-07-14

Applicant: TAMARACK STORAGE DEVICES

Inventor： TAMARACK STORAGE DEVICES ,  REDFIELD, Stephen, Roger

IPC: G11B07/00

CPC classification number: G11C13/044 ,  G03H1/0408 ,  G03H1/181 ,  G03H2001/2615 ,  G03H2260/12 ,  G03H2260/30 ,  G03H2260/54 ,  G03H2270/54 ,  G11B7/0065 ,  G11C13/045

Abstract: A holographic storage media for storing digital data in the form of an interference grating is provided which includes a plurality of slabs of photorefractive material (72) arranged in a stack, with one edge thereof comprising an incident face (74). A data beam (39) having data superimposed thereon and a reference beam (38) are input to the face (74) to record a holographic image of the data in one of the slabs (72). Each of the slabs has a plurality of adjacent storage regions formed therein. The data and reference beams are disposed in a plane perpendicular to both the face (74) and the side (75) of the slabs (72), such that the reference beam (38) is confined within the slab (72) for all angles of the reference beam (38).

Abstract translation: 提供一种用于存储干涉光栅形式的数字数据的全息存储介质，其包括布置在堆叠中的多个光折变材料板（72），其一个边缘包括入射面（74）。 具有叠加在其上的数据光束（39）和参考光束（38）被输入到面部（74），以将数据的全息图像记录在其中一个板坯（72）中。 每个板坯中形成有多个相邻的储存区域。 数据和参考光束被设置在垂直于板坯（72）的表面（74）和侧面（75）的平面中，使得参考光束（38）被限制在板坯（72）内，用于所有角度 的参考光束（38）。

公开(公告)号：WO1995002880A1

公开(公告)日：1995-01-26

申请号：PCT/US1994007906

申请日：1994-07-14

Applicant: TAMARACK STORAGE DEVICES

Inventor： TAMARACK STORAGE DEVICES ,  REDFIELD, Stephen, Roger ,  WILLENBRING, Gerald, Raymond

IPC: G11B07/00

CPC classification number: G11B7/26 ,  G03H1/0236 ,  G03H2001/262 ,  G03H2260/12 ,  G03H2260/54 ,  G03H2270/54 ,  G11B7/0065 ,  G11B7/24044 ,  G11C13/046

Abstract: A holographic storage media for storing digital data in the form of an interference grating is provided which includes a substrate (48) over which a perforated opaque structure (50) is disposed. The opaque structure (50) has wells (52) disposed therein. In the wells, a photopolymer material (54) is disposed to form data storage regions (54). This is covered by a capping layer (56). The wells (52) are chemically and/or optically isolated from each other.

Abstract translation: 提供一种用于存储干涉光栅形式的数字数据的全息存储介质，其包括衬底（48），穿孔的不透明结构（50）布置在该衬底上。 不透明结构（50）具有设置在其中的孔（52）。 在孔中，设置光聚合物材料（54）以形成数据存储区域（54）。 这被覆盖层（56）覆盖。 孔（52）彼此化学和/或光学隔离。