Implementing BER-list modulation code for hard disk drives
US9886979B1 · kind B1 · utility
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Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Dec 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1403
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and system are provided for implementing an enhanced modulation code for hard disk drives (HDDs). A modulation code directly uses Bit Error Rate (BER) information for different user patterns to construct a coded word minimizing possible error rate. The modulation code has a flexible code rate that simplifies code optimization relative to Coded Bit Density (CBD), signal to noise ratio (SNR) and noise color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.