Seagate Technology Incorporated

Bijan Tehrani

Stuart Kevin Francis

Arthur J Clark

Mitchell Ray Rose

Paul M Hardy

A dual serial port data acquisition interface assembly including a printed circuit board for supporting additional components of the dual serial port assembly, a personal computer peripheral component interconnect connector secured to the printed circuit board for passing data between the printed circuit board and a personal computer. A first serial port connector mounted on the printed circuit transferring communication data and synchronization data between the personal computer and the data storage device through a programmed universal asynchronous receiver/transmitter microchip, and a second serial port connector mounted on the printed circuit board passing a performance data of the servo control circuit from the data storage device through a serial-to-parallel converter to the personal computer.

Dual serial port data acquisition interface assembly for a data storage device

The temperature of an actuator voice coil in a disc drive is regulated so as to prevent outgassing. In a preferred embodiment, coil temperature is calculated at the beginning of each long seek. If the temperature is determined to be at or below a predetermined &ldquo;safe&rdquo; level, temperature rise is not limited and power may be applied to the coil without additional limitations. If, however, coil temperature is determined to be above the &ldquo;safe&rdquo; level, proportional control is used to scale back power generation so as to prevent the coil temperature from exceeding the coil's specified temperature limit.

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Shrewsbury, MA, United States of America

Bijan Tehrani