Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate
2007-09-25
2007-09-25
Wellington, Andrea (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Control of information signal processing channel
C369S059220, C369S275300, C369S275400
Reexamination Certificate
active
10276383
ABSTRACT:
In step S1, the address generator generates address information composed of a sync signal which is recorded on an optical disc, address data and an error correction code for the address data, pre-encodes and supplies it to a modulator. At the same time, a carrier signal generator generates a carrier signal which is to carry the address information, and supplies it to the modulator. In step S2, the modulator makes MSK modulation of the carrier signal supplied from the carrier signal generator on the basis of the pre-encoded address information supplied from the address generator, and supplies a resultant MSK modulation signal to a wobbling unit. In step S3, the wobbling unit forms, on the optical disc, a spiral groove wobbled adaptively to the MSK modulation signal supplied from the modulator. In this optical disc, a given address can be accessed quickly and accurately.
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Iimura Shinichiro
Kobayashi Nobuyoshi
Kobayashi Shoei
Yamagami Tamotsu
Battaglia Michael V
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
Wellington Andrea
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