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:
Oct. 07, 1986
Filed:
Jun. 15, 1984
Eugenio Berti, San Jose, CA (US);
Memorex Corporation, Santa Clara, CA (US);
Abstract
Seek drive forces coupled between head actuators in a magnetic disk storage system employing separately controllable head actuators are prevented from affecting reliable head actuator operation. For this purpose a compensating signal is derived proportional to the driving current employed in performing an actuator seek operation. This compensating signal is fed forward into the drive circuit of the other actuator so as to cause this other actuator to begin moving its heads in a direction opposite to that which would be caused by the later arriving coupled drive forces, thereby making it possible to prevent driving forces coupled between actuators from deleteriously interferring with reliable actuator operation.