Invention Grant
- Patent Title: Detector for low frequency offset distortion
- Patent Title (中): 低频偏移失真检测器
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Application No.: US12025581Application Date: 2008-02-04
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Publication No.: US08111739B1Publication Date: 2012-02-07
- Inventor: Jingfeng Liu , Hongwei Song , Jin Xie
- Applicant: Jingfeng Liu , Hongwei Song , Jin Xie
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03H7/30
- IPC: H03H7/30

Abstract:
A system for removing low frequency offset distortion from a digital signal, the system comprising an analog-to-digital converter to convert an analog frequency signal associated with an optical storage medium to a digital frequency signal; an equalizer to equalize the digital frequency signal; an estimator to estimate a low frequency offset distortion of the digital frequency signal; a compensator to substantially cancel the low frequency offset distortion of the digital frequency signal from the equalized digital frequency signal using the estimate; and a decoder to decode the equalized digital frequency signal having the low frequency offset distortion substantially cancelled therefrom.
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