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:
Jul. 04, 2006
Filed:
Jul. 12, 2005
Harukazu Miyamoto, Kodaira, JP;
Hirofumi Sukeda, Tokorozawa, JP;
Motoyasu Terao, Tokyo, JP;
Hiroyuki Minemura, Yokohama, JP;
Tetsuo Andou, Kokubunji, JP;
Harukazu Miyamoto, Kodaira, JP;
Hirofumi Sukeda, Tokorozawa, JP;
Motoyasu Terao, Tokyo, JP;
Hiroyuki Minemura, Yokohama, JP;
Tetsuo Andou, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Maxell, Ltd., Ibaraki, JP;
Abstract
A recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction, and a prepit of respective first and second prepit portions being arranged on a boundary of the respective tracks. The first prepit portion having an address information prepit and a synchronous information prepit, and the second prepit portion having a synchronous information prepit. The prepit of the first and second prepit portions being arranged at every two-track pitch in the radial direction. The apparatus including an irradiation source for irradiating a light spot on the optical recording medium, and a controller for controlling an irradiation position of an optical spot from the irradiation source.