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:
Jul. 14, 2026
Filed:
Jun. 20, 2025
Western Digital Technologies, Inc., San Jose, CA (US);
Erxiang Xu, Fujisawa, JP;
Takehiko Hamaguchi, Fujisawa, JP;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
The present disclosure is generally related to a tape drive comprising a tape and a tape head. The tape drive comprises a processor configured to perform a disturbance profile identification detecting one or more disturbances along a length of a tape. The disturbance profile identification is used to create a peak filter array, which is used to instruct the piezoelectric and/or voice coil motor actuators to move the tape head to adjust a frequency of the disturbances. The peak filter array is further used to partition the tape into a plurality of zones based on a size of the peak filter array. Servo parameters of a servo head are then updated based on the peak filter array within each zone to adjust the control strategy specific to each zone. Utilizing the disturbance profile identification prevents track following capability loss against the dynamic lateral tape motion of the tape drive.