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:
Mar. 20, 2012
Filed:
Sep. 28, 2007
Shoji Fuse, Iruma, JP;
Junichi Furukawa, Kawasaki, JP;
Hiroshi Nishiwaki, Kawasaki, JP;
Yoshio Sasaki, Tokorozawa, JP;
Shoji Fuse, Iruma, JP;
Junichi Furukawa, Kawasaki, JP;
Hiroshi Nishiwaki, Kawasaki, JP;
Yoshio Sasaki, Tokorozawa, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An information recording apparatus () is provided with: a recording device () for recording information onto an information recording medium () by irradiating the information recording medium with a recording laser beam (L); a controlling device () for recording calibration data onto the information recording medium by using the recording laser beam in which the power is adjusted gradually, thereby obtaining the optimum amount of the recording laser beam; and a detecting device () for detecting returned light simultaneously with the recording in the recording of the calibration data, the recording of the calibration data being ended if amount of the returned light exceeds a predetermined range, an optimum power of the recording laser beam being determined from a jitter amount included in a reproduction signal.