Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2011-06-28
2011-06-28
Dinh, Tan X (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
Reexamination Certificate
active
07969856
ABSTRACT:
An exemplary optical encoding disc includes a plurality of concentric annular tracks. Each track includes a plurality of coding units. Each coding unit includes a light converging portion and a light diverging portion. The light converging portions and the light diverging portions are arranged alternately along a circumferential direction of the optical encoding disc.
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Cheng Andrew C.
Dinh Tan X
Hon Hai Precision Industry Co. Ltd.
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