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:
Mar. 25, 2008
Filed:
Jul. 08, 2005
Takeshi Maeda, Kokubunji, JP;
Hirofumi Sukeda, Tokorozawa, JP;
Hiroyuki Minemura, Kokubunji, JP;
Hidehiko Kando, Matsudo, JP;
Makoto Miyamoto, Ome, JP;
Takeshi Maeda, Kokubunji, JP;
Hirofumi Sukeda, Tokorozawa, JP;
Hiroyuki Minemura, Kokubunji, JP;
Hidehiko Kando, Matsudo, JP;
Makoto Miyamoto, Ome, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An information recording apparatus using an optical recording medium includes a light source to irradiate a light beam to the optical recording medium and a pulse former for forming a plurality of recording pulses of the light beam. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n−1) of a space precedent to the mark.