公开(公告)号：US12033680B1

公开(公告)日：2024-07-09

申请号：US18454091

申请日：2023-08-23

Applicant: National Central University

Inventor： Yeh-Wei Yu ,  Ching-Cherng Sun ,  Yuan-Cheng Chen ,  Kun-Hao Huang ,  Huai-Ming Kuan

IPC: G11B7/0065 ,  G11B7/128 ,  G11B7/1353

CPC classification number: G11B7/0065 ,  G11B7/128 ,  G11B7/1353

Abstract: A method for reading and writing with holographic storage system includes (a) providing a reference light and a signal light; (b) transferring the reference light and the signal light to an optical storage medium to record an interference grating; (c) changing the reference light and the signal light and repeating the step of providing another changed reference light and another changed signal light to step (b), in which the reference light and the interference grating are one-to-one correspondence; (d) moving the optical storage medium and repeating steps (a) to (c); (e) providing a reading light which includes the reference lights to the optical storage medium to simultaneously read the interference gratings to form an interference result, any one of the reference lights cannot read out the interference gratings recorded by the other reference lights; and (f) moving the optical storage medium and repeating step (e).