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:
Feb. 15, 2011
Filed:
Mar. 31, 2008
Bryan E. Bloodworth, Coppell, TX (US);
Nilakantan Seshan, Plano, TX (US);
Benjamin Sarpong, Dallas, TX (US);
Ashish Manjrekar, Dallas, TX (US);
Bryan E. Bloodworth, Coppell, TX (US);
Nilakantan Seshan, Plano, TX (US);
Benjamin Sarpong, Dallas, TX (US);
Ashish Manjrekar, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Hard disk drive preamplifier timers and methods to calibrate hard disk drive preamplifier timers are disclosed. A timer in a hard disk drive preamplifier comprises a first switch to selectively store charge in a storage device based on an input signal, the storage device receiving a first current and storing the charge to cause the storage device to have a first voltage that increases at a first rate; a compensation device to cause the first voltage to be substantially equal to a second voltage after a predetermined time period; and a trigger to output a signal when the first voltage is substantially equal to the second voltage, the predetermined time period controlling a transition time between a first hard disk drive operating condition and a second hard disk drive operating condition different than the first operating condition.