Dynamic information storage or retrieval – Binary pulse train information signal – Format arrangement processing for auxiliary information
Reexamination Certificate
2007-02-06
2007-02-06
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Binary pulse train information signal
Format arrangement processing for auxiliary information
C369S275300
Reexamination Certificate
active
11033242
ABSTRACT:
A ROM-RAM recording medium includes a ROM portion in which main information is recorded by a physical change on an optically transparent substrate and a RAM portion formed on the ROM portion as a recording layer that allows writing of main information at least once. The ROM portion is provided with a sub-code area for recording sub-information. A sub-code area for recording sub-information is provided in the RAM portion arranged at physically substantially the same position as the sub-code area of the ROM portion in a track direction.
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Fujitsu Limited
Giesy Adam R.
Greer Burns & Crain Ltd.
Korzuch William
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