会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Optical disc system and method for controlling movement of an optical pickup to an innermost perimeter of an optical disc using track information
    • 光盘系统和使用轨道信息控制光学拾取器移动到光盘的最内周边的方法
    • US07177240B2
    • 2007-02-13
    • US10817291
    • 2004-04-02
    • Je-Kook KimYoung-Wook Jang
    • Je-Kook KimYoung-Wook Jang
    • G11B7/00
    • G11B7/08505
    • Optical disc systems and methods for controlling movement of an optical pickup to an innermost perimeter of an optical disc using track information are provided. For example, an optical disc system includes an optical pickup that includes a tracking actuator, a focus actuator, and an objective lens and radiates a laser beam onto the optical disc to detect light reflected from the optical disc. The optical disc system also includes a radio frequency amplifier, a sled motor, a servo driver, and a servo signal processor that includes an optical pickup movement determiner and outputs a servo control signal, the optical pickup movement determiner determining from a track-related signal whether tracks are detected on the optical disc at a current position of the optical pickup and outputting a track determination signal indicating whether the optical pickup has moved to the innermost perimeter of the optical disc, based on the determination result.
    • 提供了使用轨道信息来控制光学拾取器到光盘的最内周边的移动的光盘系统和方法。 例如,光盘系统包括包括跟踪致动器,聚焦致动器和物镜的光学拾取器,并将激光束辐射到光盘上以检测从光盘反射的光。 光盘系统还包括射频放大器,滑动电机,伺服驱动器和伺服信号处理器,其包括光学拾取器移动确定器并输出伺服控制信号,光学拾取器移动确定器从轨道相关信号 是否在光学拾取器的当前位置处在光盘上检测轨迹,并且基于确定结果输出指示光学拾取器是否移动到光盘的最内周边的轨迹确定信号。
    • 4. 发明授权
    • Optical disk signal conversion with peaking compensation
    • 光盘信号转换采用峰值补偿
    • US06188060B1
    • 2001-02-13
    • US09286238
    • 1999-04-05
    • Je-Kook KimYoung-Wook Jang
    • Je-Kook KimYoung-Wook Jang
    • H01J4014
    • G11B20/10314G11B7/0037G11B20/10009
    • An optical signal conversion apparatus in a compact disk player detects peaking in an RF signal read from a disk and compensates to reproduce a stable conversion signal, for example an EFM signal. In the optical signal conversion apparatus, a peaking prevention portion detects peaking of the RF input signal and outputs a predetermined reference voltage, if the peaking is detected, or alternately the input signal, if the peaking is not detected. A waveform processing portion extracts a high frequency component from the signal output from the peaking prevention portion, slices the extracted signal as a predetermined level, and outputs the sliced signal.
    • 光盘播放机中的光信号转换装置检测从盘读取的RF信号中的峰值,并补偿再现稳定的转换信号,例如EFM信号。 在光信号转换装置中,如果检测到峰值,则峰值防止部分检测RF输入信号的峰值,并输出预定的参考电压,或者如果没有检测到峰值,则输出预定参考电压。 波形处理部从从峰化防止部输出的信号中提取高频分量,将所提取的信号切片为预定电平,并输出分片信号。