The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2008
Filed:
Jan. 12, 2007
Osamu Kumasaka, Koufu, JP;
Masaki Kobayashi, Koufu, JP;
Hiroki Kaneda, Koufu, JP;
Masami Sone, Koufu, JP;
Kenji Kamimura, Koufu, JP;
Kazumi Kuriyama, Koufu, JP;
Osamu Kumasaka, Koufu, JP;
Masaki Kobayashi, Koufu, JP;
Hiroki Kaneda, Koufu, JP;
Masami Sone, Koufu, JP;
Kenji Kamimura, Koufu, JP;
Kazumi Kuriyama, Koufu, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An information recording apparatus for recording tracks includes: a rotation drive section (RDS) that supports and rotates a master disk with a resist layer; an exposure beam emitting section (EBES) deflectably applying an exposure beam to the disk to form a spot thereon; a relative movement drive section (RMDS) translating the RDS relatively to the spot in a radial direction of the disk; an emission controller supplying the EBES with an instruction for modulating an intensity of the exposure beam according to data to be recorded; and a movement controller supplying the RMDS with an instruction for moving the RDS with the rotating disk by a predetermined moving amount for each disk rotation. The apparatus also includes a deflection controller supplying the EBES with instructions for deflection operations for deflecting the exposure beam in a manner that the spot is successively moved from a first exposure start position in either the opposite or the same direction to a moving direction of the RDS and then, at a point in time when the spot has moved up to an exposure stop position of the disk in predetermined rotation thereof, the spot is intermittently moved to a second exposure start position in the moving direction of the RDS, and wherein the spot is periodically returned to the first exposure start position.