In this paper. A phase grating for optical disk system has been de-signed.
本文设计出一种用于光盘系统的位相光栅。
After the radial dynamical characteristic of the optical disk system was analyzed, mathematical models for this characteristic of the optical disk system were proposed.
研究了光盘机械系统的径向动态特性，给出了描述该特性的完备数学模型。
MD system has the advantages of both the analog cassette tape and the optical disk medium.
MD系统兼有模拟盒式录音带和光盘介质的主要优点。
Diffraction calculation is the basis of designing optical system of optical disk.
衍射计算是设计光盘光学系统的基础。
The design characteristics are that center of the disk is not on optical axis, deviation of target is linear and continuous and azimuth information of target is given in orthogonal coordinate system.
该调制盘的设计具有调制盘的转动中心与光学系统的光轴不同心，连续线性反映目标的偏离量，以及以直角坐标方式给出目标的方位信息等特点。
In detail, the optical receiving system is mainly composed of optical receiving lens, modulating disk, cut off filter, focusing lens and pyroelectric detector.
其中，光学接收系统主要包括光学接收镜头、调制盘、截止滤光片、窄带干涉滤光片、聚焦透镜及光电转换系统等；
Spot size detection method is representative method to obtain a focus error digital optical disk storage system.
光斑尺寸法是数字光盘信息存储中的典型聚焦误差探测方法。
The problems are studied about the digital servo using Digital Signal Processor (DSP)for rewritable optical disk drives, and the system scheme is presented.
该文研究了可重写光盘机DSP数字伺服控制的问题，给出了数字控制系统的硬件构成。
This paper describes a new type of optical system in optical head for magneto-optic disk drive, expounds theoretical the basic principle for magneto-optio information read out.
本文叙述了一种新型磁光盘驱动器光学头的光学系统，并从理论上阐明了磁光信息读取的基本原理。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
Optical disk, optical recorder, optical producing device, encrypted communication system, and authorizing system for use of program.
光盘，光记录装置，光重放装置，保密通信方式或程序使用许可方式。
The paper puts forward a new standard for high density optical disk based on MPEG-2, and introduces the product system for the new standard disk.
提出了一种基于MPEG2编码的高密度光盘新标准，并介绍了新标准光盘的制作系统。
Focal depth plays an important role in optical storage systems, and high focal depth makes the focusing servo system easy to track the disk surface.
焦深在高密度光盘存储系统中具有十分重要的作用，大焦深可以使调焦伺服系统容易跟踪盘面。
A test system has been designed which can measure the characteristics of embossed information of magneto optical disk, and a sample disk test result is given in the end.
分析了4x密度磁光盘模压信息的特性，根据国际标准所提出的测试条件自行研制了测试系统，阐述了头信号和槽信号的测试方法，给出测试实例。
A test system has been designed which can measure the characteristics of embossed information of magneto optical disk, and a sample disk test result is given in the end.
分析了4x密度磁光盘模压信息的特性，根据国际标准所提出的测试条件自行研制了测试系统，阐述了头信号和槽信号的测试方法，给出测试实例。
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