Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal processing for controlling recording light...
Reexamination Certificate
2002-10-02
2010-06-15
Young, Wayne R (Department: 2627)
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal processing for controlling recording light...
C369S053260, C369S047500
Reexamination Certificate
active
07738335
ABSTRACT:
It is an object of the present invention to provide a method of recording information to an optical recording medium that is suited to achieving high data transfer rates.The method of recording information according to the present invention is adapted for recording information to an optical recording medium by forming on the optical recording medium a plurality of recording marks selected from a group consisting of several types of recording marks each with different lengths, wherein a bottom power of a laser beam used for forming at least one recording mark contained in the group is set to be higher than a reproducing power of a laser beam used for reproducing information. According to the present invention, since the bottom power helps to erase a recording mark, it is possible to maintain a high erase efficiency even when information is recorded by setting a high data transfer rate.
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Kato Tatsuya
Utsunomiya Hajime
Alunkal Thomas D
Seed IP Law Group PLLC
TDK Corporation
Young Wayne R
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