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:
Jan. 25, 2011
Filed:
Mar. 27, 2006
Hiroyuki Matsumoto, Saitama, JP;
Takeshi Matsumoto, Saitama, JP;
Katsunori Tamamura, Saitama, JP;
Takao Yoshida, Saitama, JP;
Fumito Inaba, Saitama, JP;
Makoto Ikehata, Saitama, JP;
Hiroyuki Matsumoto, Saitama, JP;
Takeshi Matsumoto, Saitama, JP;
Katsunori Tamamura, Saitama, JP;
Takao Yoshida, Saitama, JP;
Fumito Inaba, Saitama, JP;
Makoto Ikehata, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
During a process of closing of a shutter of a disk device, a position of the shutter is detected. A first shutter position indicator indicative of a first position of the shutter and a second shutter position indicator indicative of a second position, which is immediately before the first position, are calculated. Whether a disk is pinched by the shutter is determined based on comparison of a predetermined threshold and the difference between the first shutter position indicator and the second shutter position indicator.