| US 7,539,107 B2 | ||
| Optical recording medium, recording method and apparatus for optical recording medium, and reproducing method and apparatus | ||
| Yoichiro Sako, Tokyo (Japan) | ||
| Assigned to Sony Corporation, (Japan) | ||
| Filed on Mar. 13, 2008, as Appl. No. 12/75,689. | ||
| Application 12/075689 is a division of application No. 10/926743, filed on Aug. 26, 2004, granted, now 7,397,748. | ||
| Application 10/926743 is a division of application No. 09/601786, granted, now 6,810,004, previously published as PCT/JP99/06859, filed on Dec. 07, 1999. | ||
| Claims priority of application No. P10-346439 (JP), filed on Dec. 07, 1998; application No. P10-370682 (JP), filed on Dec. 25, 1998; and application No. P11-231389 (JP), filed on Aug. 18, 1999. | ||
| Prior Publication US 2008/0186835 A1, Aug. 07, 2008 | ||
| Int. Cl. G11B 7/00 (2006.01) | ||
| U.S. Cl. 369—53.31 [369/44.26; 369/47.19] | 16 Claims |
| 1. A recording apparatus for an optical recording medium, the apparatus comprising:
a light source for radiating a recording laser beam;
a modulator for modulating the radiated recording laser beam based on first and second data;
an objective lens for converging the modulated recording laser beam onto an optical recording medium; and
a signal processor for generating the first and second data based on furnished data, wherein the signal processor generates
the first data based on upper bits of main data recorded on the optical recording medium and generates the second data based
on lower bits of the main data.
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