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
    • 15. 发明授权
    • Optical disc player having a carriage control system relying upon a multiplied periodic signal and a tracking error signal
    • 具有依赖于相乘的周期信号和跟踪误差信号的滑架控制系统的光盘播放机
    • US07145845B2
    • 2006-12-05
    • US09972574
    • 2001-10-04
    • Masato SakamotoYasutaka Suzuki
    • Masato SakamotoYasutaka Suzuki
    • G11B7/95
    • G11B7/0953
    • For reproducing and/or recording information from/onto an optical disc, a pickup is used to detect a target track on the disc through an optical beam. In carriage servo control, movement of the pickup is servo-controlled in the radial direction of the optical disc. In this control, a tracking error signal is produced by a preamplifier. A pulse signal is produced, in which the period of the pulse signal is set to a constant amount corresponding to the accuracy of movement of the pickup. Based on the pulse signal and the tracking error signal, a carriage control signal to move the pickup is produced. The carriage control signal is then supplied to a carriage motor by a driver, so that the pickup is moved.
    • 为了从光盘上再现和/或记录信息,拾取器用于通过光束来检测盘上的目标轨迹。 在托架伺服控制中,拾取器的移动在光盘的径向上被伺服控制。 在该控制中,由前置放大器产生跟踪误差信号。 产生脉冲信号,其中脉冲信号的周期被设置为对应于拾取器的移动精度的恒定量。 基于脉冲信号和跟踪误差信号,产生用于移动拾取器的滑架控制信号。 然后由驾驶员将滑架控制信号提供给滑架电动机,使得拾取器移动。