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:
Sep. 14, 2010
Filed:
Jun. 28, 2005
Hirohisa Tsudome, Saitama, JP;
Kanji Ishihara, Saitama, JP;
Hirohisa Tsudome, Saitama, JP;
Kanji Ishihara, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An information recording apparatus which irradiates a laser light onto a recording medium such as a DVD+R to record information records an adjustment RF signal in a PCA used for calibration of the laser light (OPC process). Thereby, on the recording medium having no recorded area of an RF signal in an entire circumference, such as the DVD+R, it becomes possible that the adjustment RF signal is recorded in the PCA to be read out and a mechanism adjustment and the like are executed. In addition, the information recording apparatus searches the inside of the PCA in order from the area having highly possibility that the adjustment RF signal is recorded. Thereby, the adjustment RF signal in the PCA can be rapidly detected.