Method and device for recording marks representing data in...

Details Method and device for recording marks representing data in... Method and device for recording marks representing data in...

2003-05-27

2009-11-17

Wellington, Andrea L (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047510

Reexamination Certificate

active

07619957

ABSTRACT:
A device and method of recording marks representing data in an information layer of a record carrier includes irradiating the information layer by a pulsed radiation beam, each mark being written by a sequence of pulses. The recorded marks are erasable by irradiating the information layer with an erase radiation beam. The erase radiation beam has a first erase power level (e1) for a first erase period (t1), a second erase power level (e2) higher than or equal to the first erase power level (e1) for a second erase period (t2) , and a third erase power level (e3) lower than the second erase power level (e2) for a third erase period (t3).

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Machine translation of JP 2000-123367 A.

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