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:
Nov. 15, 2011
Filed:
Jun. 08, 2009
Ashok B. Nayak, Glendora, CA (US);
Ming-chih Weng, Los Angeles, CA (US);
Turguy Goker, Solana Beach, CA (US);
Ashok B. Nayak, Glendora, CA (US);
Ming-Chih Weng, Los Angeles, CA (US);
Turguy Goker, Solana Beach, CA (US);
Quantum Corporation, San Jose, CA (US);
Abstract
An actuator assembly () for positioning a head () of a tape drive () relative to a storage tape that moves along a tape path () includes a first actuator (), a second actuator () and a controller (). The actuators () move the head () in a direction that is substantially perpendicular to the tape path. The first actuator () is mounted to the second actuator () at a location that is based on a position of a resonance node () of the second actuator (). The controller () controls linear positioning of the first actuator () and the second actuator () relative to the storage tape on a closed-loop basis. The actuators () can each include voice coils (). The second actuator () can include two positioner guides (A,B) that are configured in a substantially collinear configuration or in a triangular configuration with the head (). The first actuator () can include an isolation boot () that decreases vibration of the first actuator () caused by vibration of the second actuator (). The actuators () can have resonance frequencies that are different from one another. The first fundamental resonance frequency can be tuned based on the second resonance frequency to decrease a correlation between the resonances of the actuators ().