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:
Jul. 08, 2008
Filed:
Dec. 22, 2004
Toshihiko Kaneshige, Yokohama, JP;
Koichi Otake, Yokohama, JP;
Hideyuki Yamakawa, Kawasaki, JP;
Yukiyasu Tatsuzawa, Yokohama, JP;
Hiroyuki Moro, Ome, JP;
Toshihiko Kaneshige, Yokohama, JP;
Koichi Otake, Yokohama, JP;
Hideyuki Yamakawa, Kawasaki, JP;
Yukiyasu Tatsuzawa, Yokohama, JP;
Hiroyuki Moro, Ome, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A recorded stream generator generates a data block stream in synchronism with the phase of a recording clock, from the input data. The recorded stream generator further generates, for each predetermined data unit constituting the data block stream, a data phase reference pulse indicative of the phase of the data unit. An inserting section inserts a VFO signal into a predetermined amount (32 sectors) of the data block stream, the VFO signal having a length of time corresponding to a difference in phase between an wobble address phase signal and a data phase reference pulse. The inserting section thus provides a data stream DST consisting of the VFO signals and the data block streams. An LD uses light beams to record the data stream on an optical disk.