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. 13, 2008
Filed:
Apr. 03, 2003
Thomas Cougar Vaneaton, Wylie, TX (US);
Bryan E. Bloodworth, Irving, TX (US);
Glenn Mayfield, Garland, TX (US);
Tuan Van Ngo, Eden Prairie, MN (US);
Thomas Cougar VanEaton, Wylie, TX (US);
Bryan E. Bloodworth, Irving, TX (US);
Glenn Mayfield, Garland, TX (US);
Tuan Van Ngo, Eden Prairie, MN (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An apparatus for use in applying write signals for driving a write head to effect writing information to a memory device; the write signals including a first write signal and a second write signal; includes: (a) a directing circuit receiving the write signals, directing a current to establish a voltage across the write head in a first excursion toward a first polarity in response to the first write signal and directing the current to establish the voltage across the write head in a second excursion toward a second polarity substantially opposite the first polarity in response to the second write signal; (b) a first boost system coupled with the directing circuit and boosting the write voltage toward the first polarity during the first excursion; and (c) a second boost system coupled with the directing circuit and boosting the write voltage toward the second polarity during the second excursion.