Western Digital Technologies, Inc.

Certance LLC

Sanwu Tan

Turguy Goker

Anil Sareen

Yen Ming Huang

Systems and methods are disclosed managing power and/or temperature in a data storage system. A hybrid data storage device comprises a disk component and a non-volatile semiconductor memory component. The data storage device further comprises a temperature sensor and a controller configured to receive a temperature signal from the temperature sensor indicating a temperature of at least a portion of the data storage device and, when the temperature is determined to be greater than a first temperature, manage power to the semiconductor memory according to a first power throttling state.

Temperature compensation in data storage device

An arrangement and method for compensating for the written-in tracking error for a linear tape drive filters out spatial error components of a position error signal (PES). The position information contained within A, B pairs of servo stripes, and within C, D pairs of stripes is preserved. The timing between the A and C bursts and the C and A bursts is filtered, such as by low pass filtering, to filter out the error that can be written-in by a servo writer. The timing signal for the A, B bursts and C, D bursts are divided by the filtered timing signals for the AC and CA timing signals, respectively. This ratio provides the filtered PES signal used by a head positioner to precisely position the head with respect to the tape.

Growing community of inventors

Irvine, CA, United States of America

Sanwu Tan