18119515. MAGNETIC DISK DEVICE simplified abstract (TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION)

MAGNETIC DISK DEVICE

Organization Name

TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

Inventor(s)

Yuugo Tanno of Kawasaki Kanagawa (JP)

MAGNETIC DISK DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18119515 titled 'MAGNETIC DISK DEVICE

Simplified Explanation

The patent application describes a magnetic disk device with a heater that adjusts the flying height of the read head to improve read accuracy and reliability.

• The magnetic disk device includes a magnetic disk, a magnetic head with a write head and read head, a heater, a detection portion, and a controller.
• The controller adjusts the power supplied to the heater based on the flying height detected by the detection portion.
• In case of a read error, the detection portion determines an assist amount to correct the flying height in the error occurrence region and initiates a re-try read with the adjusted power value to the heater.

Potential Applications

This technology could be applied in:

• Data storage devices
• Hard disk drives
• Magnetic recording systems

Problems Solved

This technology addresses:

• Read errors in magnetic disk devices
• Flying height adjustments for read heads
• Improving read accuracy and reliability

Benefits

The benefits of this technology include:

• Enhanced data retrieval accuracy
• Increased reliability of read operations
• Improved performance of magnetic disk devices

Potential Commercial Applications

A potential commercial application for this technology could be in:

• Data centers
• Computer hardware manufacturing
• Information technology industry

Possible Prior Art

One possible prior art for this technology could be:

• Previous magnetic disk devices with flying height adjustment mechanisms

How does the controller determine the assist amount for correcting the flying height in the error occurrence region?

The controller calculates the assist amount based on the difference between the detected flying height and the pre-set reference flying height.

What is the impact of the re-try read with the adjusted power value on the overall performance of the magnetic disk device?

The re-try read with the adjusted power value aims to improve read accuracy in error occurrence regions, potentially leading to enhanced overall performance of the device.

Original Abstract Submitted

According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head including a write head, a read head, a heater which adjusts a flying height of the read head and a detection portion which detects a flying height of the read head, and a controller which controls a power value supplied to the heater in accordance with the flying height, and, when a read error occurs, detects, with the detection portion, the flying height of the read head in an error occurrence region, determines an assist amount to bring the flying height in the error occurrence region to a pre-set reference flying height, and executes re-try read of the error occurrence region while inputting a power value corresponding to the assist amount to the heater.