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:
Jan. 30, 2001
Filed:
Apr. 06, 1999
John J. Price, Jr., Edina, MN (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A magnetic recording control circuit for controlling current through a magnetic recording head includes a switch network, a signal coupler, and first and second voltage clamps. The switch network is connected to first and second magnetic recording head node regions and includes first, second, third, and fourth switches each having a variable magnitude conduction path and a control region. The signal coupler includes an input region and a plurality of output regions each connected to the control region of a corresponding switch. The first and second voltage clamps limit voltage differences between the magnetic recording head node regions and the control regions of the first and second switches.