18119515. MAGNETIC DISK DEVICE simplified abstract (KABUSHIKI KAISHA TOSHIBA)
Contents
- 1 MAGNETIC DISK DEVICE
MAGNETIC DISK DEVICE
Organization Name
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. When a read error occurs, the device detects the flying height in the error region, determines an assist amount to correct it, and re-tries reading the error region with the assist amount applied.
- Magnetic disk device with a heater to adjust read head flying height
- Controller controls power supplied to heater based on flying height
- Detection portion detects flying height and assists in error correction
- Re-try read of error occurrence region with assist amount applied
Potential Applications
This technology could be applied in various data storage devices such as hard disk drives, solid-state drives, and magnetic tape drives to improve read accuracy and reliability.
Problems Solved
1. Improved read accuracy in magnetic disk devices 2. Error correction in read head flying height
Benefits
1. Enhanced data integrity and reliability 2. Increased performance and efficiency in data storage devices
Potential Commercial Applications
Optimizing read accuracy and error correction in data storage devices can lead to increased demand and adoption in industries such as data centers, cloud storage providers, and consumer electronics manufacturers.
Possible Prior Art
One possible prior art could be the use of heaters in hard disk drives to adjust flying height, but the specific method of error detection, correction, and re-try as described in this patent application may be novel.
What are the potential safety implications of using a heater in a magnetic disk device?
The use of a heater in a magnetic disk device could potentially lead to overheating issues if not properly controlled. It is important to ensure that the heater does not cause damage to the disk or other components due to excessive heat generation.
How does the controller determine the power value supplied to the heater based on the flying height of the read head?
The controller likely uses feedback from the detection portion to adjust the power value supplied to the heater in real-time, ensuring that the flying height of the read head is maintained within the desired range for optimal performance.
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.
