首页>
外国专利>
Adaptive control device for tracking servo system of optical head in optical storage device
Adaptive control device for tracking servo system of optical head in optical storage device
展开▼
机译:光存储装置中用于跟踪光头伺服系统的自适应控制装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system and method for controlling positioning of an optical pickup unit relative to at least one track of an optical data storage medium include an adaptive track position feedback controller that compensates for defocus of an optical beam relative to the optical data storage medium associated with movement across the medium and/or disturbances in distance between a lens of the optical pickup unit relative to the optical data storage medium. A track position feedback controller may include an adaptive term or parameter based on a focus (or defocus) error signal generated by a focus position feedback controller and associated sensors or detectors of a quadrature photodiode integrated circuit (PDIC).
展开▼