Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate
2007-01-23
2007-01-23
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Control of information signal processing channel
Reexamination Certificate
active
10478217
ABSTRACT:
In a disc drive device (10) described as a specific embodiment of the present invention, AC0to AC12of ADIP cluster address are associated with AU6to AU18of an address unit. A high-order digit of a sector address that has a value of 0 in the case of a former-half cluster (sectors FC to0D) and 1 in the case of a latter-half cluster (sectors0E to1F) is associated with AU5. An address bit ABLG for identifying recording areas of a disc having plural recording areas for land/groove recording or the like is set at 0. These bits of Au to AU18and ABLG are associated with 15 bits s0to s14from the lower side of a 16-bit shift register for generating a pseudo-random number. Moreover, 1 is associated with the most significant bit s15. Thus, the error correction capability for high-density recording data can be improved.
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Battaglia Michael V.
Korzuch William
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
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