Patent ID: 11900970
Assignee: SEAGATE TECHNOLOGY LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A method comprising:
receiving an analog signal at a continuous-time front end (CTFE) circuit;
performing, via the CTFE circuit, first magnetoresistive asymmetry (MRA) compensation on the analog signal to adjust a dynamic range of the analog signal based on an input range of an analog-to-digital converter (ADC), including:
applying a fixed value for the first MRA compensation, the fixed value selected to cancel a majority of MRA influence prior to providing the analog signal to the ADC;

converting the analog signal to a digital sample sequence via the ADC; and
performing, via a digital MRA compensation circuit, second MRA compensation to correct residual MRA in the digital sample sequence, including:
correcting, via the digital MRA compensation circuit, a residual MRA influence remaining after the first MRA compensation.