Multi-mode iterative detector
US7340003B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jan 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A storage system for storing data on a storage medium includes an encoder, a linear block encoder, a write circuit, a read circuit, a channel decoder, and a soft linear block code decoder. In a first iteration, the channel decoder decodes data read by the read circuit. In succeeding iterations, the channel decoder decodes the data read by the read circuit and utilizes information decoded by the soft linear block decoder from an immediately preceding iteration. The storage system includes a threshold check circuit to select (i) an output of the soft linear block code decoder if the number of parity-check violations has a first relationship with respect to a threshold, or (ii) an output of the channel decoder if the number of violations has a second relationship with respect to the threshold. The storage system includes a decoder to decode an output of the threshold check circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.