Magnetic disk device and reference pattern writing method of the same
US-2024079028-A1 · Mar 7, 2024 · US
Head position demodulating method and magnetic disk device
US9019652B1 · US · B1
| Field | Value |
|---|---|
| Publication number | US-9019652-B1 |
| Application number | US-201414177826-A |
| Country | US |
| Kind code | B1 |
| Filing date | Feb 11, 2014 |
| Priority date | Oct 15, 2013 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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According to one embodiment, a head position demodulating method and a magnetic disk device switch a demodulation window such that an amplitude of a fundamental wave component of a null-type burst pattern transitions from a decreasing direction to an increasing direction along with an increase in seek speed during demodulation of the null-type burst pattern recorded on a magnetic disk.
First claim
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What is claimed is: 1. A head position demodulating method, comprising switching a demodulation window with respect to a null-type burst pattern recorded on a magnetic disk such that an amplitude of a fundamental wave component of the null-type burst pattern transitions from a decreasing direction to an increasing direction corresponding to seek speed during demodulation of the null-type burst pattern. 2. The method according to claim 1 , wherein the demodu…
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- G11B5/59688Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9019652B1 cover?
- According to one embodiment, a head position demodulating method and a magnetic disk device switch a demodulation window such that an amplitude of a fundamental wave component of a null-type burst pattern transitions from a decreasing direction to an increasing direction along with an increase in seek speed during demodulation of the null-type burst pattern recorded on a magnetic disk.
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G11B5/59688. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).