The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Dec. 09, 2024
Seagate Technology Llc, Fremont, CA (US);
Seagate Technology LLC, Fremont, CA (US);
Abstract
Described are systems and methods for tri-level recording of bits on granular magnetic media, for example using a magnetic writer of a hard disk drive. Tri-level recording of bits involves recording magnetic states that can be read as three distinct levels by a magnetic reader. Tri-level recording within a single recording layer of the granular magnetic storage media can be accomplished by recording bits in a neutral bit state as well as in an up bit state and a down bit state. Neutral bits are recorded by doubling the write frequency so that the write field is reversed over the span of writing a single bit. The resulting neutral bit includes grains whose magnetic states are roughly evenly mixed between up states and down states.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile