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. 19, 2018
Filed:
Oct. 05, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/007 (2006.01); G11B 7/005 (2006.01); G11B 20/24 (2006.01); G11B 7/09 (2006.01); G11B 7/0037 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G11B 7/00718 (2013.01); G11B 7/0053 (2013.01); G11B 7/00736 (2013.01); G11B 7/00745 (2013.01); G11B 7/0938 (2013.01); G11B 20/1217 (2013.01); G11B 20/24 (2013.01); G11B 7/0037 (2013.01); G11B 2020/1225 (2013.01); G11B 2020/1229 (2013.01); G11B 2020/1238 (2013.01); G11B 2020/1264 (2013.01); G11B 2020/1277 (2013.01); G11B 2020/1287 (2013.01); G11B 2020/1292 (2013.01); G11B 2020/1298 (2013.01);
Abstract
There are provided an optical disk and an optical disk recording method which are capable of stable data reading in a case where a recording linear density is increased. According to an optical disk of the present disclosure, a run-in pattern recorded in a groove track and a run-in pattern recorded in a land track are made different patterns so that no great change is caused in the amplitude of an acquired signal due to interference between adjacent recording patterns, and thus, data may be stably read.