Data writing and reading method and apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsChao Zheng, Sheng Liu
Life of this patent
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Abstract
A data writing and reading method is applied to a data storage system. The storage system includes a processor, a charged particle beam excitation modulation component, and a recording medium. The method is performed by the processor. The data writing method includes obtaining to-be-written data; controlling, based on the to-be-written data, the charged particle beam excitation modulation component to generate a charged particle beam array with a target modulation feature; and controlling the charged particle beams in the charged particle beam array to act on the recording medium to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data.
Claims20
A method implemented by a processor of a storage system, wherein the method comprises:
- obtaining to-be-written data;
- controlling, based on the to-be-written data, a charged particle beam excitation modulation component of the storage system to generate a charged particle beam array comprising a target modulation feature, wherein the charged particle beam array comprises one or more charged particle beams, and wherein the target modulation feature comprises at least one of a shape of a charged particle beam in the charged particle beam array, a spatial energy distribution of the charged particle beam, a temporal energy distribution of the charged particle beam, or a spatial action angle of the charged particle beam;
- controlling the one or more charged particle beams to act on an auxiliary material layer on a recording medium of the storage system to generate, on the auxiliary material layer, an auxiliary feature corresponding to the to-be-written data;
- and
- controlling the one or more charged particle beams to act on the recording medium, to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data,
- wherein the auxiliary feature generates, in the target area, the target recording feature, and
- wherein the auxiliary material layer comprises one or more layers.
A method implemented by a processor of a storage system, wherein the method comprises:
- obtaining a read request requesting to read to-be-read data of a recording medium of the storage system;
- controlling, based on the read request, a charged particle beam excitation modulation component of the storage system to generate a charged particle beam array comprising a target modulation feature, wherein the charged particle beam array comprises one or more charged particle beams, and wherein the target modulation feature comprises at least one of a shape of a charged particle beam in the charged particle beam array, a spatial energy distribution of the charged particle beam, a temporal energy distribution of the charged particle beam, or a spatial action angle of the charged particle beam;
- controlling the one or more charged particle beams to act on a reacting area of the recording medium;
- controlling a charged particle beam imaging component of the storage system to obtain a charged particle image by acting on the one or more charged particle beams on a target area;
- and
- reading, based on a target recording feature, the to-be-read data, wherein the target recording feature is based on the charged particle image, wherein the target recording feature comprises a spatial profile feature and either of a first physical feature or a first chemical feature, wherein the reacting area comprises the target area, and wherein the to-be-read data corresponds to the target recording feature.
An apparatus of a storage system comprising:
- a memory configured to store computer instructions;
- and
- a processor coupled to the memory and configured to invoke the computer instructions to cause the apparatus to:
- obtain to-be-written data;
- control, based on the to-be-written data, a charged particle beam excitation modulation component of the storage system to generate a charged particle beam array comprising a target modulation feature, wherein the charged particle beam array comprises one or more charged particle beams, and wherein the target modulation feature comprises at least one of a shape of a charged particle beam in the charged particle beam array, a spatial energy distribution of the charged particle beam, a temporal energy distribution of the charged particle beam, or a spatial action angle of the charged particle beam;
- control the one or more charged particle beams to act on an auxiliary material layer on a recording medium of the storage system to generate, on the auxiliary material layer, an auxiliary feature corresponding to the to-be-written data;
- and
- control the one or more charged particle beams to act on the recording medium, to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data, wherein the auxiliary feature generates, in the target area, the target recording feature, and
- wherein the auxiliary material layer comprises one or more layers.
Dependencies are inferred from the claim text.