Data channel for processing user data and servo data in a disk drive adopting perpendicular magnetic recording system
Provided in a disk drive of a perpendicular magnetic recording system is a data channel to execute signal processing suited to the characteristics of either servo data signals or user data signals read from a disk. This data channel decodes data by executing PRML signal processing of positive coeffi...
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| Format | Patent |
| Language | English |
| Published |
04.04.2006
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| Online Access | Get full text |
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| Summary: | Provided in a disk drive of a perpendicular magnetic recording system is a data channel to execute signal processing suited to the characteristics of either servo data signals or user data signals read from a disk. This data channel decodes data by executing PRML signal processing of positive coefficient PR equalization for data signals of vertical rectangular waveform in the read signals read by a read head from the disk. The data channel converts servo signals of vertical rectangular waveform into differentiated waveform signals, and reproduces servo data from the differentiated waveform signals. |
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