发明申请
US20130050005A1 Read Channel With Oversampled Analog To Digital Conversion And Parallel Data Detectors
审中-公开
读取通道与过采样模数转换和并行数据检测器
- 专利标题: Read Channel With Oversampled Analog To Digital Conversion And Parallel Data Detectors
- 专利标题(中): 读取通道与过采样模数转换和并行数据检测器
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申请号: US13215815申请日: 2011-08-23
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公开(公告)号: US20130050005A1公开(公告)日: 2013-02-28
- 发明人: Jingfeng Liu , Nayak Ratnakar Aravind , Hongwei Song , Haotian Zhang
- 申请人: Jingfeng Liu , Nayak Ratnakar Aravind , Hongwei Song , Haotian Zhang
- 主分类号: H03M1/12
- IPC分类号: H03M1/12
摘要:
Methods and apparatus are provided for processing a signal in a read channel using a selective oversampled analog to digital conversion. The disclosed selective oversampled analog to digital conversion simplifies the analog design by transferring at least a portion of the equalization and/or filtering processes to the digital domain. An oversampled analog to digital conversion is applied to an analog input signal to generate a plurality of digital samples for a given bit interval. The plurality of digital samples for a given bit interval are applied to a corresponding plurality of data detectors to obtain a detected output. The plurality of digital samples for a given bit interval may have a phase offset relative to one another. The detected output may be obtained, for example, by summing the outputs of the plurality of data detectors or by aggregating weighted outputs of the plurality of data detectors.
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