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. 13, 1987
Filed:
Oct. 19, 1984
Applicant:
Inventor:
Yasuichi Hashimoto, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 78 ;
Abstract
A microprocessor is provided for calculating, based on the target track address set in the target address register, the target velocity in the seek operation of the magnetic head up to the target track. When the target velocity of the magnetic head is comparatively large, the microprocessor increases the revision interval of the target velocity, based on a prestored program, such that it is larger than the normal revision interval. The microprocessor varies the target velocity revision interval by a pulse signal output from a circuit which divides the track pulse by 1/2, for example.