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:
Sep. 07, 2004
Filed:
Jun. 05, 2003
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 ; G11B 5/09 ;
U.S. Cl.
CPC ...
G11B 7/24 ; G11B 5/09 ;
Abstract
A rewritable recording medium having a synchronizing signal portion recorded with a synchronizing signal information and a data portion recorded with data information after the synchronizing signal portion. Each time the synchronizing signal information is rerecorded, a length of the synchronizing signal portion changes and a start position of the synchronizing signal portion changes.