发明名称 |
Multi-rate oversampling of analog signals in storage devices |
摘要 |
Multi-rate oversampling of analog signals in storage devices is described. A method of processing an analog signal derived from a storage medium in a storage device includes: filtering the analog signal with an anti-alias filter having a fixed cut-off frequency related to a target sampling rate; sampling the analog signal using an over-sampling rate of a plurality of over-sampling rates provided by a variable-rate analog-to-digital converter (ADC) to produce an over-sampled digital signal; and filtering the over-sampled digital signal using a decimation filter of a plurality of decimation filters provided by a digital signal processor (DSP) to produce a digital signal having the target sampling rate. |
申请公布号 |
US8654468(B2) |
申请公布日期 |
2014.02.18 |
申请号 |
US201213459762 |
申请日期 |
2012.04.30 |
申请人 |
MORLING ROBERT;JIBRY RAFEL;HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
MORLING ROBERT;JIBRY RAFEL |
分类号 |
G11B20/10 |
主分类号 |
G11B20/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|