The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Sep. 26, 2018
Seagate Technology Llc, Cupertino, CA (US);
Zheng Wang, Louisville, CO (US);
Ara Patapoutian, Hopkinton, MA (US);
Deepak Sridhara, Longmont, CO (US);
Seagate Technology LLC, Fremont, CA (US);
Abstract
Systems and methods are disclosed for error correction with multiple log likelihood ratio (LLR) lookup tables (LUTs) for a single read, which allows for adaptation to asymmetry in the number of 0 or 1 bit errors without re-read operations. In certain embodiments, an apparatus may comprise a circuit configured to receive a sequence of bit value estimates for data read from a solid state memory during a single read operation, generate a first sequence of LLR values by applying the sequence of bit value estimates to a first LUT, and perform a decoding operation on the first sequence of LLR values. When the first sequence of LLR values fails to decode, the circuit may be configured to generate a second sequence of LLR values by applying the bit value estimates to a second LUT, and perform the decoding operation on the second sequence of LLR values to generate decoded data.