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:
May. 19, 2026
Filed:
Mar. 24, 2025
Western Digital Technologies, Inc., San Jose, CA (US);
Noureddine Kermiche, Dana Point, CA (US);
Robert Eaton, San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A data storage device comprises a disk, a recording head, and a thermal fly-height control (TFC) actuator. Write touchdown is detected by writing a reference pattern to the disk at a target TFC power, reading the reference pattern at operational TFC power, detecting write touchdown when a measured timing jitter exceeds a threshold, and writing additional reference patterns to the magnetic storage medium at incrementally adjusted target TFC powers until write touchdown is detected. For read touchdown detection, the reference pattern is written at a target TFC power and read at operational TFC power, and re-read at incrementally adjusted target TFC powers until read touchdown is detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile