Information processing apparatus having built-in hard disk drive and head retraction processing method of built-in hard disk drive
AssigneeSony Corporation
InventorsNaoki Miyoshi, Keisuke Koide
Life of this patent
Estimating the term…
Abstract
An information processing apparatus includes a hard disk drive, an acceleration sensor, and a determination section. The hard disk drive is capable of moving a head of the hard disk drive to a data-free landing zone. The acceleration sensor detects acceleration. The determination section obtains a low frequency component from the detected acceleration and determines whether it is necessary to move the head of the hard disk drive to the data-free landing zone based on the low frequency component.
Claims29
An information processing apparatus, comprising:
- a hard disk drive capable of moving a head to a data-free landing zone;
- an acceleration sensor configured to detect acceleration;
- and
- a determination section configured to obtain a low frequency component from the detected acceleration and to determine whether it is necessary to move the head of the hard disk drive to the data-free landing zone based on the low frequency component.
A head retraction processing method of a hard disk drive in an information processing apparatus having an acceleration sensor, the method comprising:
- detecting acceleration with the acceleration sensor;
- obtaining a low frequency component from the detected acceleration;
- and
- determining whether it is necessary to move a head of the hard disk drive to a data-free landing zone based on the low frequency component.
An information processing apparatus, comprising:
- a hard disk drive capable of moving a head to a data-free landing zone;
- an acceleration sensor configured to detect acceleration;
- a determination section configured to obtain a high frequency component from the detected acceleration, to obtain a vibration level based on the high frequency component, to compare the vibration level with a preset threshold value to obtain a comparison result, and to determine whether it is necessary to move the head of the hard disk drive to the data-free landing zone based on the comparison result;
- a keyboard configured to input information from a user;
- and
- a threshold changing section configured to change the threshold value when an input of the keyboard is detected.
An information processing apparatus, comprising:
- a hard disk drive capable of moving a head to a data-free landing zone;
- an acceleration sensor configured to detect acceleration;
- a determination section configured to obtain a high frequency component from the detected acceleration, to obtain a vibration level based on the high frequency component, to compare the vibration level with a preset threshold value to obtain a comparison result, and to determine whether it is necessary to move the head of the hard disk drive to the data-free landing zone based on the comparison result;
- a lid configured to be freely opened and closed relative to a main body of the information processing apparatus;
- a lid open/close detection section configured to detect an open/close state of the lid;
- and
- a threshold value changing section configured to change the threshold value when the lid open/close detection section has detected a close operation of the lid.
A head retraction processing method of a hard disk drive in an information processing apparatus having an acceleration sensor, the method comprising:
- detecting acceleration with the acceleration sensor;
- obtaining a high frequency component from the detected acceleration;
- obtaining a vibration level based on the high frequency component;
- comparing the vibration level with a preset threshold value to obtain a comparison result;
- determining whether it is necessary to move a head of the hard disk drive to a data-free landing zone based on the comparison result;
- detecting whether an input has been made from a user;
- and
- changing the threshold value when the input from the user has been detected.
A head retraction processing method of a hard disk drive in an information processing apparatus having an acceleration sensor, the method comprising:
- detecting acceleration with the acceleration sensor;
- obtaining a high frequency component from the detected acceleration;
- obtaining a vibration level based on the high frequency component;
- comparing the vibration level with a preset threshold value to obtain a comparison result;
- determining whether it is necessary to move a head of the hard disk drive to a data-free landing zone based on the comparison result;
- detecting whether a lid closing operation has been performed;
- and
- changing the threshold value when the lid closing operation has been performed.
Dependencies are inferred from the claim text.