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:
Feb. 03, 2009
Filed:
Aug. 24, 2006
Mamoru Shoji, Sakai, JP;
Kenji Koishi, Sanda, JP;
Atsushi Nakamura, Moriguchi, JP;
Takashi Ishida, Yawata, JP;
Shuichi Tasaka, Takarazuka, JP;
Mamoru Shoji, Sakai, JP;
Kenji Koishi, Sanda, JP;
Atsushi Nakamura, Moriguchi, JP;
Takashi Ishida, Yawata, JP;
Shuichi Tasaka, Takarazuka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc. In the optical data recording method, at least two of the plurality of recording marks comprises: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code.