Holographic storage medium, and method and apparatus for recording/reproducing data on/from the holographic storage medium
AssigneeSamsung Electronics Co., Ltd.
InventorsJin-han KIM, Hyun-soo Park, Sung-hoo Hwang
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Abstract
A holographic storage medium, and a method and an apparatus for recording/reproducing data on/from the holographic storage medium. The method including: dividing a datapage into a plurality of regions; modulating the data into codewords having different on-pixel rates; and arranging the codewords in the plurality of regions, based on the different on-pixel rates.
Claims30
A method of recording data on a holographic storage medium as holograms recorded in datapages, the method comprising:
- dividing a datapage into a plurality of regions;
- recording the data by modulating the data into codewords having different on-pixel rates and arranging the codewords in the plurality of regions of the datapage based on the different on-pixel rates.
An apparatus for recording data on a holographic storage medium as holograms recorded in datapages, the apparatus comprising:
- a light processing unit to record the data on the holographic storage medium using a signal beam and a reference beam;
- and
- a control unit to divide a datapage into a plurality of regions, to modulate the data into codewords having different on-pixel rates, and to control the light processing unit so as to record the data by arranging the codewords in the plurality of regions based on the on-pixel rates.
A method of reproducing data from a holographic storage medium comprising holograms recorded as datapages, the method comprising:
- reading a datapage from the holographic storage medium;
- and
- demodulating codewords that are disposed in different regions of the datapage;
- wherein the codewords have different on-pixel rates and are disposed in the different regions of the datapage based on the on-pixel rates.
An apparatus for reproducing data from a holographic storage medium comprising holograms recorded in datapages, the apparatus comprising:
- a light processing unit to read a datapage from the storage medium;
- and
- a control unit to demodulate codewords having different on-pixel rates, disposed in different regions of the datapage based on the different on-pixel rates.
A holographic storage medium to store data, comprising holograms recorded in datapages, wherein the datapages are divided into a plurality of regions, the data modulated into codewords having different on-pixel rates, and the code words are arranged in the plurality of regions based on the different on-pixel rates.
Dependencies are inferred from the claim text.