Storing AD sampled data of read/write channel into ECC SRAM
US7697224B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Aug 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An embodiment in accordance with the present invention enables storing in a memory, multi-bit data corresponding to analog signals read from a medium before being converted to single-bit data as recorded data. In an embodiment of the present invention, an AD converter is configured to convert analog signals from a magnetic disk to multi-bit data. A buffer circuit holds successively multi-bit data transferred from the AD converter toward a Viterbi decoder, and outputs the held plural multi-bit data in parallel. A SRAM for ECC is used for storing multi-bit data transferred from the buffer circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.