公开(公告)号：US12062387B2

公开(公告)日：2024-08-13

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: G11B7/24038 ,  G11B7/24062 ,  G11B7/243 ,  G11B7/26

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

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：US12100435B2

公开(公告)日：2024-09-24

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

CPC classification number: G11B7/00456 ,  G11B7/005 ,  G11B7/128

Abstract: Data reading and writing apparatuses and data reading and writing methods are provided. In a data reading apparatus or a 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 the laser head, so that in a 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.