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:
Apr. 07, 2009
Filed:
Nov. 04, 2005
Yasunori Kuwayama, Daito, JP;
Yasunori Kuwayama, Daito, JP;
Funai Electric Co., Ltd., Daito-shi, JP;
Abstract
In an optical disc device that records information on a recordable optical disc having a power calibration area (PCA), recording operation is started with an input of a recording command. If an operating environment changes largely along with the recording operation, in order to perform an optimum recording power control, an optical pickup is shifted to the PCA, and the amount of an unused area in the PCA is determined. If an unused area in an amount to perform an optimum power control five times is not left, the optimum recording power control is stopped, and the recording operation is stopped. If left, the optimum recording power control is executed. Then, if a finalizing process is instructed, the finalizing process is performed. This avoids that, when performing a finalizing process of an optical disc after being subjected to recording, the finalizing process cannot be completed because the amount of an unused area remaining in the PCA is small.