Claims
- 1. An information recording apparatus for recording information to an optical recording medium including a disk-like substrate, a plurality of tracks extending in a circumferential direction on the disk-like substrate and associated with a plurality of grooves, a plurality of zones provided on the disk-like substrate and extending between a first position and a second position in a radial direction of the disk-like substrate, each zone including at least two tracks, each track being divided into a plurality of recording units of circular arc shape extending in the circumferential direction, radially adjacent recording units of a respective zone being delimited by a pair of radial lines joined to form a central angle at an apex proximate to a center of the disk-like substrate, each recording unit of a respective zone being delimited by the same central angle and the recording units of different zones being delimited by different central angles, each recording unit having substantially the same length, the grooves being wobbled in the radial direction of the disk-like substrate, a length of each recording unit being an integer multiple of a cycle of the wobble, and the integer multiple being the same for the different zones, the information recording apparatus comprising:an irradiation source for irradiating a light spot on the optical recording medium; and control means for controlling an irradiation position of an optical spot from the irradiation source.
Priority Claims (2)
Number |
Date |
Country |
Kind |
08-197297 |
Jul 1996 |
JP |
|
09-023480 |
Feb 1997 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation of U.S. application Ser. No. 09/761,571, filed Jan. 18, 2001, which is related to and co-pending with U.S. application Ser. No. 09/761,570, filed Jan. 18, 2001, which are continuations of U.S. application Ser. No. 09/350,107, filed Jul. 9, 1999, now U.S. Pat. No. 6,219,331, which is a continuation application of U.S. application Ser. No. 09/090,310, filed Jun. 4, 1998, now U.S. Pat. No. 5,930,228, which is a continuation application of U.S. application Ser. No. 08/900,294, filed on Jul. 25, 1997, now U.S. Pat. No. 5,936,933, which application relates to U.S. application Ser. No. 08/863,126, filed on May 27, 1997, now U.S. Pat. No. 5,953,299, entitled “INFORMATION RECORDING METHOD AND APPARATUS” by H. Miyamoto et al, and assigned to the present assignee, based on Japanese Patent Application Nos. 08-136189 filed on May 30, 1996 and 09-079587 filed on Mar. 31, 1997, the subject matter of which is incorporated herein by reference.
US Referenced Citations (27)
Foreign Referenced Citations (7)
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Dec 1997 |
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Continuations (4)
|
Number |
Date |
Country |
Parent |
09/761571 |
Jan 2001 |
US |
Child |
10/075590 |
|
US |
Parent |
09/350107 |
Jul 1999 |
US |
Child |
09/761571 |
|
US |
Parent |
09/090310 |
Jun 1998 |
US |
Child |
09/350107 |
|
US |
Parent |
08/900294 |
Jul 1997 |
US |
Child |
09/090310 |
|
US |