Patent · US Active

Non-linear LLR look-up tables

US10804932B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Deepak Sridhara · Boulder, US
Rishi Ahuja · Brooklyn, US
William M. Radich · Berthoud, US
Ara Patapoutian · Westborough, US

Key dates

Filing date	Dec 27, 2018
Grant date	Oct 13, 2020
Priority date	—
Expiry date	Dec 27, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/658
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

In one implementation, the disclosure provides a system including a detector configured to generate an output of a first log-likelihood ratio for each bit in an input data stream. The system also includes at least one look-up table providing a mapping of the first log-likelihood ratio to a second log-likelihood ratio. The mapping between the first log-likelihood ratio and the second log-likelihood ratio is non-linear. The system also includes a decoder configured to generate an output data stream using the second log-likelihood ratio to generate a value for each bit in the input data stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.