Patent ID: 6927933
Filing Date: 2005-08-09
Classification: G11B

Abstract:
1. An apparatus for use in applying write signals for driving a write head coupled between a first head locus and a second head locus to effect writing information to a memory device; said write signals including a first write signal and a second write signal; the apparatus being configured for varying circuit parameters according to predetermined operational characteristics; the apparatus comprising: (a) a current directing circuit; said current directing circuit being coupled with a first supply voltage and receiving said write signals; said current directing circuit directing a write current through a first circuit path including said write head in response to said first write signal; said current directing circuit directing said write current through a second current path including said write head in response to said second write signal; (b) at least one of: (c) a control unit coupled with at least one of said impedance adjustment system and said current adjustment system; said control unit generating control signals for effecting said selective including for at least one of said impedance adjustment system and said current adjustment system to effect said varying.