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:
Dec. 08, 2009
Filed:
May. 10, 2004
Haesung Kwon, San Jose, CA (US);
Hyung Jai Lee, Cupertino, CA (US);
Seong-woo Kang, San Jose, CA (US);
Yun-sik Han, Santa Clara, CA (US);
Haesung Kwon, San Jose, CA (US);
Hyung Jai Lee, Cupertino, CA (US);
Seong-Woo Kang, San Jose, CA (US);
Yun-Sik Han, Santa Clara, CA (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A hard disk drive that includes an optical pick-up coupled to a head of a hard disk assembly ('HDA'). The head is located adjacent to a disk. The optical pick-up can sense the surface of the disk by detecting light reflected from the surface. The optical pick-up is coupled to a particle circuit that can distinguish between an embedded particle and a floating particle from the reflected light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile