Seagate Technology Incorporated

JiaHong Shu

KianKeong Ooi

KianSoon Yeo

YuNang Zai

Xiong Liu

Qiang Bi

BengWee Quak

Xiang Lu

WeiSung Lee

JackMing Teng

Lucas KongYaw Lee

TzeMing Jimmy Pang

PeiKoh Lee

ChoonHoe Koh

Kong Yaw Lucas Lee

HengChang Guo

WaiKhay Chan

James Chang

Technologies are described herein for temporarily writing data to a buffer zone on a recording medium of a storage device when the device is operating in a vibration condition. A vibration condition is detected in the storage device, and upon detecting the vibration condition, data of a current write operation is written to a buffer zone on a recording medium of the storage device, the buffer zone being configured with a lower areal density of storage than primary storage zones on the recording medium. At a later time, an idle condition may be detected in the device, and upon detecting the idle condition, it may be determined whether the vibration condition exists. If it is determined that the vibration condition no longer exists, the data is transferred from the buffer zone to the primary storage zones on the recording medium.

HDD write buffer zone for vibration condition

Various embodiments of the present invention are generally directed to protecting a device from damage due to an impact event at the conclusion of a free fall condition through the use of a biasing signal that maintains a retention force until the impact event is completed.

Impact protection for a retractable control object

A motion pattern of an actuator supporting a head is monitored during/after a disc spin-up. The monitor's signal is configured to generate a digital indication of where the head was just before the spin-up. The digital indication is optionally a single-bit indicator that is used directly as a decision of whether to continue a start-up operation.

Sensing a prior transducer position by a motion pattern

A method, apparatus, and combination for reducing acoustical noise at start-up of a device is disclosed. The method includes the steps of determining an internal temperature of the device, and unlatching an actuator of the device based on the determined internal temperature of the device, by steps for unlatching the actuator of the device. The apparatus includes a thermistor providing a resistance value to a controller that selects an unlatch process based on the resistance value of the thermistor, and an unlatch procedure programmed into the controller executing the selected unlatch process. The device combination includes a base deck supporting an actuator confined by a magnetic latch for periods of inactivity, and unlatched from the magnetic latch for periods of activity by steps for unlatching the actuator.

Acoustical noise reduction for a data storage device

A device for detecting an actuator assembly parking error when a disc drive is powered on includes a magnetic latch attached to the actuator assembly and a latch pin assembly electrically connected to a base plate in the disc drive, where the latch pin assembly is positioned to contact the magnetic latch only when the actuator's read/write head is positioned over a parking zone on the disc. A detection module is electrically connected to the magnetic latch and thus is able to detect whether or not the magnetic latch is contacting the latch pin assembly when the disc drive is powered on. A method for detecting an actuator assembly parking error includes powering on the disc drive, determining whether the magnetic latch has electrical contact with the latch pin assembly, and reporting a parking error if the magnetic latch does not have electrical contact with the latch pin assembly.

Disc drive actuator parking detector

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Singapore, Singapore

JiaHong Shu