Seagate Technology Incorporated

Robert Billings Church

Gary Edwin Bement

Rory Stephan Goodman

Sumit Chandra

Ishak Sugeng Iskandar

Serene Kiang Low

MuChong Lim

A control method is provided for loading a data transfer head to a data storage medium comprising: determining a desired maximum displacement between a parked position of the head and an encroaching position of the head in relation to a selected data storage track of the medium; determining a spin interval associated with a predetermined quantity of medium movement before the head reaches the encroaching position; rotating the data storage medium at a beginning of the spin interval; and moving the actuator during the spin interval from the parked position and at a velocity resulting in the head being displaced at the end of the spin interval a distance that is less than the maximum displacement. A data storage device is contemplated comprising programmed instructions for performing this method for a predetermined number of loading occurrences, or in relation to observing a threshold data transfer error rate.

Adaptive control of head velocity during data storage device startup

A method of adjusting a distribution of clamping pressure applied to a disc by a disc clamp includes identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp. A quantity of heat is determined and applied to the disc clamp to remedy the uneven distribution of clamping pressure. A system for adjusting a clamping pressure applied to a data storage disc by a disc clamp includes a disc pack assembly having a disc clamp securing a disc to a spindle motor hub. The system also includes means for identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp and for remedying the uneven distribution of clamping pressure by heating the disc clamp for a period of time.

Disc clamp adjustment using heat

Growing community of inventors

Bolder, CO, United States of America

Robert Billings Church