Matches 1 - 14 out of 14


Match Document Document Title
US20110090591 SEEK CONTROL METHOD TO AVOID FLEX CABLE RESONANCE DURING SETTLE IN HARD DISK DRIVE  
A hard disk drive with a circuit that can perform a seek routine by providing a seek current to a voice coil motor. The voice coil motor is coupled to a head that is coupled to a disk. The seek...
US20130038962 DISK DRIVE DECREASING A SETTLE DELAY BASED ON SPEED THAT A SETTLE PARAMETER ADAPTS  
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, and control circuitry operable to seek the head to a target track and settle the head on the...
US20060077588 Generalized sinusoidal trajectory for seek servomechanism of hard drives  
A hard disk drive moves a transducer across a disk surface so that the transducer has an essentially generalized sinusoidal acceleration trajectory. A digital signal processor known as a...
US20140320999 DISK DRIVE MINIMIZING INITIAL SEEK DISTANCE AFTER LOAD OPERATION  
A disk drive is disclosed comprising a disk comprising tracks defined by servo sectors, a head, and control circuitry comprising a servo control system operable to actuate the head over the disk...
US20080088966 SERVO CONTROL METHOD AND APPARATUS IN SEEK RETRY CONDITION AND DISK DRIVE APPARATUS USING THE SAME  
A servo control method in a seek retry condition includes determining whether the seek retry condition is generated, and terminating a servo control process that is currently performed and...
US20060082922 Trajectories-based seek  
A hard disk drive moves a transducer across a disk surface so that the transducer has an acceleration trajectory, which is symmetric about the midpoint of the curve. A digital signal processor...
US20140063651 SUPPRESSION OF SEEK REPEATABLE RUNOUT  
The disclosure is related to an apparatus and methods of suppressing seek repeatable runout. In a particular embodiment, a servo loop is disclosed. The servo loop includes a seek signal generation...
US20060066986 Seek servomechanism with extended sinusoidal current profile  
A hard disk drive moves a transducer (or recording head) across a disk surface so that the transducer has an essentially extended sinusoidal acceleration trajectory. The transducer may be...
US20090109567 SEEK CONTROL APPARATUS AND METHOD FOR GENERATING CONTROL DATA FOR SEEK CONTROL  
There is provided a method for generating acceleration data used in feed-forward control of head seeking, wherein, a seek distance and one of a seek period and the count of samples are received; a...
US20120281311 RAMP-UNLOADING SEEK CONTROL DEVICE FOR MAGNETIC DISK DRIVE  
A ramp-unloading seek control device includes a voice coil motor, a detector, an instruction-current detector, a head-speed computing unit, and an identification structure. The identification...
US20070041122 Communication method and system  
Abstract: The invention relates to a method of communicating between an application block and a drive block in a low power storage device. This method consists of executable instructions...
US20080030891 BACK ELECTROMOTIVE FORCE (BEMF) CALIBRATION METHOD, METHOD OF CONTROLLING UNLOADING OF DISK DRIVE APPARATUS USING BEMF CALIBRATION METHOD, AND DISK DRIVE APPARATUS USING THE SAME  
A method of calibrating a parameter to measure the back electromotive force (BEMF) of a voice coil motor (VCM), and a method and apparatus to use the calibrating method to perform unloading...
US20110205664 INFORMATION STORING DEVICE AND METHOD FOR CONTROLLING SAME TO RECORD/REPRODUCE INFORMATION BY SELECTING ONE OF WORKING MODES  
An information storing device and an information processing device having a memory for registering a plurality of working modes at recording/reproduction and a switching circuit for selecting one...
US20070223122 Data recovery method  
A data recovery method for detecting information recorded on a recording surface of an information recording medium, comprising the step of: moving a reproduction head on the recording surface of...

Matches 1 - 14 out of 14