| US 7,539,093 B2 | ||
| Recording medium, recording apparatus, and reading apparatus | ||
| Michihiko Iida, Kanagawa (Japan); and Kunihiko Miyake, Kanagawa (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Filed on Aug. 21, 2006, as Appl. No. 11/506,921. | ||
| Application 11/506921 is a continuation of application No. 09/790594, filed on Feb. 23, 2001, granted, now 7,164,633. | ||
| Claims priority of application No. 2000-054411 (JP), filed on Feb. 25, 2000. | ||
| Prior Publication US 2006/0280081 A1, Dec. 14, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G11B 7/00 (2006.01) | ||
| U.S. Cl. 369—47.1 [369/47.27; 369/275.3; 369/94] | 9 Claims |
| 1. A recording apparatus compatible with a recording medium which stores at least one of configuration information indicating
a configuration of said recording medium and moment-of-inertia information indicating a moment of inertia of said recording
medium, said recording apparatus comprising:
determining means for determining physical characteristics of said recording medium by reading said at least one of the configuration
information and the moment-of-inertia information, the configuration information including diameter information of said recording
medium; and
recording control means for performing settings for a recording operation according to the physical characteristics determined
by said determining means, and for allowing the recording operation to be performed, wherein
said determining means reads said at least one of the configuration information and the moment-of-inertia information from
a wobbling groove formed on said recording medium,
said determining means reads said at least one of the configuration information and the moment-of-inertia information for
each of a plurality of areas of a hybrid recording medium, each of the plurality of areas of the hybrid recording medium including
different physical characteristics, and
wobbling of said wobbling groove is obtained by performing phase modulation on said groove.
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