Trained states equalizer in a read channel
US11953987B1 · kind B1 · utility
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22Claims
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Key dates
| Filing date | Sep 16, 2022 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Sep 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N7/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Example systems, read channels, and methods provide states equalization for a digital data signal in preparation for a soft output detector. The states equalizer determines a set of signal values from the digital data signal and filters the set of signal values through a set of finite impulse response filters configured to generate a set of state values for a target signal value, where each filter corresponds to a potential state of the target signal value. Based on the state values, a set of probabilities for possible states is determined and used to populate a decision matrix for a soft output detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.