公开(公告)号：US20230282234A1

公开(公告)日：2023-09-07

申请号：US18197465

申请日：2023-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingsong WEI ,  Jun XU ,  Yang WANG ,  Renqi LIU ,  Hongwei TANG

IPC: G11B7/26 ,  G11B7/24062 ,  G11B7/243

CPC classification number: G11B7/268 ,  G11B7/24062 ,  G11B7/243 ,  G11B2220/2541 ,  G11B2007/24314 ,  G11B2007/24316

Abstract: An optical storage medium, a method for preparing an optical storage medium, and a system are provided. In this application, the optical storage medium includes a substrate and at least one data layer, the data layer includes a recording layer and a spacer layer, the recording layer is located on the spacer layer, and the data layer is located above the substrate. The recording layer may store data, the recording layer includes an area in which a phase change material is distributed and an area in which no phase change material is distributed, and the two different areas may indicate different data.

公开(公告)号：US20230282233A1

公开(公告)日：2023-09-07

申请号：US18314456

申请日：2023-05-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongwei TANG ,  Jun XU ,  Jia XU

IPC: G11B7/14 ,  G11B7/0045

CPC classification number: G11B7/14 ,  G11B7/0045

Abstract: This application relates to the field of optical storage technologies, and discloses a data read/write system and method. The method can be used to improve a read/write speed of optical storage without increasing a rotational speed of an optical storage medium. The system includes an optical deflector and a read/write optical head. The optical deflector is configured to sequentially deflect a first optical signal by a plurality of angles, to obtain a plurality of second optical signals. The read/write optical head is configured to receive the plurality of second optical signals, and separately focus the plurality of second optical signals on the optical storage medium, to implement reading/writing of a plurality of data points.

公开(公告)号：US20230097007A1

公开(公告)日：2023-03-30

申请号：US17994618

申请日：2022-11-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongwei TANG ,  Jun XU

IPC: G11B7/0045 ,  G11B7/005 ,  G11B7/128

Abstract: Data reading and writing apparatuses and data reading and writing methods are provided. In the data reading apparatus or the data writing apparatus, an optical head array including a plurality of laser heads is disposed, so that a quantity of laser heads for reading/writing data is increased. In addition, each laser head is improved, and a plurality of focal points are disposed in each laser head, so that in one data reading/writing process, parallel reading/writing of a plurality of pieces of data may be implemented by using the plurality of laser heads and the plurality of focal points in the laser head, and a data read/write throughput of an optical storage medium may be improved.