Optical recording apparatus capable of changing the length...

Details Optical recording apparatus capable of changing the length... Optical recording apparatus capable of changing the length...

2006-08-15

2006-08-15

Dinh, Tan (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S059250

Reexamination Certificate

active

07092348

ABSTRACT:
A method for recording information on a rewritable recording medium includes recording synchronizing signal information in a synchronizing signal portion on the medium, recording data information in a data portion of the medium after the synchronizing signal portion by forming marks in the data portion, and substantially randomly inverting the marks and spaces between the marks each time the information is recorded. The marks for particular areas of the medium are different in a physical property from other areas of the medium and data information is recorded in association with both ends of each of the marks. Upon rewriting of at least the recorded synchronizing signal information, a length of the synchronizing signal portion changes and a start position of the synchronizing signal portion changes, and wherein a change of the synchronizing signal information start position is smaller than a change of the length of the synchronizing signal portion.

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