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:
Jul. 03, 2002
Yong-hoon Lee, Gyeonggi-do, KR;
In-sik Park, Gyeonggi-do, KR;
Chong-sam Chung, Gyeonggi-do, KR;
Du-seop Yoon, Gyeonggi-do, KR;
Kyung-geun Lee, Gyeonggi-do, KR;
Heui-jong Kang, Gyeonggi-do, KR;
Han-kook Choi, Gyeonggi-do, KR;
Yong-hoon Lee, Gyeonggi-do, KR;
In-sik Park, Gyeonggi-do, KR;
Chong-sam Chung, Gyeonggi-do, KR;
Du-seop Yoon, Gyeonggi-do, KR;
Kyung-geun Lee, Gyeonggi-do, KR;
Heui-jong Kang, Gyeonggi-do, KR;
Han-kook Choi, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A high density disc having a data area which is set such that compatibility is secured in the same drive while maintaining a superior recording/reproducing feature, is disclosed. The high density disc has a center hole, a clamping area, a data area where user data is recorded, a lead in area located at the inner side of the data area, and a lead out area located at the outer side of the data area. In the high density disc in which the diameter of the center hole is 10 mm or more, the inner diameter of the clamping area is characteristically within a range of 20–26 mm. Also, the inner diameter of the data area is characteristically within a range of 35–40 mm. Therefore, while a conventional disc drive is still used, the size of the high density disc decreases and a recording capacity can be increased.