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发明授权
US08331206B1 Calibration based DC coupled analog front end for optical storage system 有权
基于校准的直流耦合模拟前端用于光存储系统

Calibration based DC coupled analog front end for optical storage system
摘要：
In an apparatus for conditioning a signal from an optical pickup unit (OPU), a single-ended channel includes a first signal processing block to calibrate a dark level of a single-ended signal corresponding to a single-ended output of the OPU, if any, and to center the single-ended signal. A dual-ended channel includes a second signal processing block to calibrate a dark level of a dual-ended signal corresponding to a dual-ended output of the OPU, if any, and to center the dual-ended signal. A multiplexer selects one of the single-ended channel and the dual-ended channel, and outputs a selected signal. A digital signal processing stage converts the selected signal to a digital signal.
摘要（中）：

在用于调节来自光学拾取单元（OPU）的信号的装置中，单端通道包括第一信号处理块，用于校准对应于OPU的单端输出的单端信号的暗电平，如果 任何，并将中心的单端信号。 双端通道包括第二信号处理块，用于校准对应于OPU的双端输出的双端信号的暗电平（如果有的话），并使双端信号居中。 复用器选择单端信道和双端信道之一，并输出所选信号。 数字信号处理级将选择的信号转换为数字信号。

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