Patent ID: 11953987
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 21:
22. A system comprising:
means for receiving at least one digital read signal from at least one corresponding read element;
means for combining the at least one digital read signal and at least one corresponding reference signal to equalize a digital data signal representing a series of data bits;
means for determining a set of signal values from the digital data signal;
means for filtering the set of signal values through a set of finite impulse response filters configured to filter the set of signal values to a set of state values for a target signal value, wherein each filter in the set of finite impulse response filters corresponds to a potential state of the target signal value;
means for determining, based on the state values, a set of probabilities for possible states of the target signal value; and
means for populating, using the set of probabilities, a decision matrix for a soft output detector.