Optical track format for holographic storage optical disc and encoding method thereof
AssigneeAmethystum Storage Technology Co., Ltd.
InventorsDejiao HU, Yicheng LIU, Jun TIAN, Xiaoxiao TAO
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Abstract
An optical track format of a holographic storage optical disc includes a lead-in area, a data area and a lead-out area. The data area is provided with data holographic positioning marks for marking reading/writing position of data holograms on the optical track and start positioning marks for marking position on the optical track where data holograms start to be recorded. The start positioning marks may also contain address encoding information. Such optical track can be encoded by performing binary encoding by length of the optical track between two consecutive notches, or performing binary encoding by high and low levels of a level signal.
Claims15
An optical track format for a holographic storage optical disc, comprising
- a lead-in area, which is configured for storing characteristic information, product information, and reading/writing parameters of the holographic storage optical disc, and calibration holograms for calibrating an incident light;
- a data area, which is configured for recording data holograms loaded with data;
- and
- a lead-out area, which is configured for storing sealing information of the holographic storage optical disc,
- wherein the data area is provided with two kinds of marks including data holographic positioning marks for marking reading/writing position of the data holograms on an optical track, and start positioning marks for marking position on the optical track where the data holograms start to be recorded, each start positioning mark includes address encoding information,
- the lead-in area is provided with calibration holographic positioning marks for marking position of the calibration holograms on the optical track, and
- the data holographic positioning marks, start positioning marks, and calibration holographic positioning marks on the optical track are capble of being positioned or read information therein by the incident light.
Dependencies are inferred from the claim text.