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:
Oct. 19, 2010
Filed:
Sep. 29, 2004
Kiyotaka Tanaka, Hirakata, JP;
Hironori Deguchi, Hirakata, JP;
Kiyotaka Tanaka, Hirakata, JP;
Hironori Deguchi, Hirakata, JP;
Panasonic Corporation, Osaka, JP;
Abstract
There is provided an optical disc recording apparatus containing a small-area circuit that is adaptable to both of the formats of DVD-R/RW and +RW/+R standards. The apparatus is provided with a circuit () for converting a 32T-cycle binarized wobble signal based on the +RW/+R standard into a 186T-cycle binarized wobble signal based on the DVD-R/RW standard, and the converted 186T-cycle binarized wobble signal is selected with a selector () during +RW/+R recording while the 186T-cycle binarized wobble signal is selected during DVD-R/RW recording, whereby subsequent PLL circuits are shared to reduce the circuit scale.