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. 22, 2004
Filed:
Feb. 21, 2002
Tsutomu Ito, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
In order to avoid destruction of recorded data on the magnetic disk due to a shock when portable equipment incorporating a magnetic disk falls from a person's hand or similar, or to minimize damage to the magnetic head and magnetic disk device, in the portable equipment incorporating a magnetic disk device, the magnetic disk device is provided with a magnetic head retraction mechanism and with a held-in-hand detection mechanism which detects whether the equipment is held in a person's hand. When the held-in-hand detection mechanism detects that the equipment is not held in a person's hand, the retraction mechanism causes the magnetic head to be retracted from the recorded data portion of the magnetic disk to the outside, so as to protect the magnetic disk device and the data recorded on the magnetic disk from shocks.