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. 14, 1997
Filed:
Oct. 20, 1994
Fujitsu Limited, , JP;
Abstract
A seek control system in a disk system, in which the object measured is a mechanism including a voice coil motor which positions a head, and in which the temperature of the voice coil motor is detected and seek operations are controlled based on the thus detected temperature, includes a unit for determining the amount of heat causing the temperature rise of the object under measurement as the square of a voice coil motor current command value multiplied by predetermined coefficients; a unit for integrating the result obtained by subtracting the amount of naturally radiated heat from the amount of heat including the amount of heat causing the thus determined temperature rise, to determine the amount of heat in the object; and a unit for detecting the temperature of the object in accordance with the thus determined amount of heat in the object. Preferably, a calculation concerning the ratio of the amount of heat in the object to the thermal capacity of the object is performed to detect the temperature of the object under measurement.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile