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:
Aug. 08, 2006
Filed:
Sep. 20, 2004
Hyun-ki Kim, Hwaseong-si, KR;
Joo-ho Kim, Yongin-si, KR;
Du-seep Yoon, Saononam-si, KR;
In-oh Hwang, Seongnam-si, KR;
Hyun-ki Kim, Hwaseong-si, KR;
Joo-ho Kim, Yongin-si, KR;
Du-seep Yoon, Saononam-si, KR;
In-oh Hwang, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A high density readable only optical disc includes a substrate having pits with different lengths in accordance with unit information, wherein a depth of the pit increases as the pit length increases; and a mask layer that includes a metal oxide, or a mixture of fine metal particles and a dielectric material. The high density readable only optical disc may be used to read pits not greater than a reading resolution limit and to obtain an optimal CNR since a pit depth is varied depending on a pit length. Also, a method of the high density readable only optical disc may be used to prepare a high density readable only optical disc having an optimal pit depth in accordance with a pit length.