Magnetoresistive asymmetry compensation

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United States of America Patent

PATENT NO 11658669
APP PUB NO 20220247418A1
SERIAL NO

17582376

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods are disclosed for magnetoresistive asymmetry (MRA) compensation using a digital compensation scheme. In certain embodiments, a method may comprise receiving an analog signal at a continuous-time front end (CTFE) circuit, and performing analog offset compensation to constrain an extremum of the analog signal to adjust a dynamic range based on an input range of an analog-to-digital converter (ADC), rather than to modify the analog signal to have a zero mean. The method may further comprise converting the analog signal to a digital sample sequence via the ADC; performing, via a digital MRA compensation circuit, digital MRA compensation on the digital sample sequence; receiving, via a digital backend (DBE) subsystem, the digital sample sequence prior to digital MRA compensation; and generating, via a DBE, a bit sequence corresponding to the analog signal based on an output of the DBE subsystem and an output of the digital MRA compensation circuit.

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Patent Owner(s)

  • SEAGATE TECHNOLOGY LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bellorado, Jason San Jose, US 120 737
Marrow, Marcus San Jose, US 124 760
Wu, Zheng Los Altos, US 138 914

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