Patent ID: 11908502
Assignee: SEAGATE TECHNOLOGY LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A read/write channel in a storage device comprising:
a write precompensation circuit that receives a write signal from a host device and that shifts rising edges and falling edges of each of pulse in the write signal by a select magnitude and in opposite directions; and
a magnetoresistive asymmetry compensation (MRAC) block that receives, from a read element, a read signal corresponding to the write signal, the MRAC block being tuned to correct second-order non-linearities characterized by a particular set of distortion signatures, wherein the select magnitude of the shift applied by the write precompensation circuit introduces a non-linear signal characteristic that combines with non-linear signal characteristics introduced by the read element to generate one of the particular distortion signatures that is correctable by the MRAC block.