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:
Jun. 03, 2014
Filed:
Apr. 03, 2013
Applicant:
Hitachi Consumer Electronics Co. Ltd., Tokyo, JP;
Inventors:
Takahiro Kurokawa, Fujisawa, JP;
Hiroyuki Minemura, Kokubunji, JP;
Assignee:
Hitachi Consumer Electronics Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G09B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A recording adjustment method capable of controlling an edge position of a mark with high accuracy. Based on an acquired read-out signal waveform, a starting position of a last pulse is adjusted such that a so-called L-SEAT shift value for an end edge of the mark becomes minimum.