Seagate Technology Incorporated

James Lai Kein Chang

Kah Liang Gan

Pei Koh Lee

Yu Nang Zai

Myint Ngwe

Beng Wee Quak

Wei Loon Ng

Utt Heng Kan

Lucas Kong Yaw Lee

Nan Ling Goh

Boon Liong Tan

Lina Wang

Yam Pheng Tham

Hla Moe

A data bus can supply power from a first power source to a sink device. The data bus is coupled to a second power source. An electrical current from the second power source supplements an electrical current on the data bus if the voltage on the data bus decreases to less than a threshold value.

Circuit for supplementing electrical current to a peripheral device

The disclosure is related to detecting an electrostatic charge at a data storage device. The electrostatic charge can be detected and a data integrity management process can be implemented. In a particular embodiment, a method includes monitoring an electronic device having a data storage medium for an electrostatic event. The method also includes selectively performing a data integrity management process on the data storage medium when the electrostatic event is detected.

Data integrity management responsive to an electrostatic event

A system for low acoustic noise spindle motor commutation is disclosed. The system contains a control device that generates commutation control signals which cause spindle motor drivers to source or sink current through windings of a spindle motor. The windings create electromagnetic fields which induce rotational movement in a spindle motor rotor. Low acoustic noise snubber devices are coupled to each winding and are dynamically configurable by the control device to provide low spindle motor driver charging current upon initial application of power to the spindle motor, and reduced acoustic noise and back EMF-generated current and voltage surges at the spindle motor driver during spindle motor commutation.

System and method for low acoustic noise spindle motor commutation

A system, method, and device for sensing temperature during the writing of information onto magnetic media and providing a sufficient write current for that temperature is disclosed. The system comprises a head responsive to a write current for generating a magnetic flux used in writing data onto the magnetic media, a write current source coupled to the head for receiving a write signal and providing write current to the head, and a temperature responsive device coupled to the write current source that senses temperature and provides a write signal whose magnitude is dependent on temperature.

System method and device for generating a temperature compensated write current during disk drive write operations

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Singapore, Singapore

James Lai Kein Chang