| 摘要 |
Aspects of the disclosure provide a signal processing circuit to reduce signal distortions due to optical aberrations. The signal processing circuit includes a circuit configured to receive an electrical signal corresponding to a light beam reflected by a storage medium and filter the electrical signal to reduce distortions due to, for example, birefringence aberration in the light beam, and an equalizer configured to equalize the filtered electrical signal. In an example, the circuit is a median filter.
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