Patent ID: 8310776
Filing Date: 2012-11-13
Classification: G11B

Abstract:
1. An apparatus comprising: a control circuit configured to generate a plurality of control signals in response to a data input signal, wherein said plurality of control signals have a level less than needed to write data; a driver circuit configured to generate a differential write control signal in response to (i) said plurality of control signals and (ii) a current source, wherein (A) said plurality of write control signals have a level sufficient to write data and (B) said driver circuit (i) receives said plurality of control signals through a flexible bus, (ii) receives said current source through said flexible bus and (iii) is located remotely from the control circuit; and a write head configured to write information by physically moving above one of plurality of tracks on a disk in response to said write control signal, wherein said driver circuit moves along with said write head.