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
    • 72. 发明公开
    • 결함 영역 검출/복구 방법 및 장치와 이를 이용한 디스크드라이브
    • 用于检测和恢复有缺陷的区域和使用其的磁盘驱动器的方法和装置
    • KR1020070063780A
    • 2007-06-20
    • KR1020050123989
    • 2005-12-15
    • 삼성전자주식회사
    • 김화준
    • G11B20/18G11B20/10
    • G11B20/18G11B20/10027G11B2020/1826
    • A method for detecting and recovering a defect area and a disc drive using the same are provided to accurately inform an error correction processing block of a position where a defect is generated and improve recovery capability. A VGA(Variable Gain Amplifier)(310) changes and amplifies a gain of signal read from a recording medium to be achieved at a target level. A gain change quantity detecting unit(350) detects a gain change quantity of the VGA(310). A defect position detecting unit(360) compares the detected gain change quantity with a certain threshold value, and generates a defect detection signal when the gain change quantity exceeds the certain threshold value. An error correction processing unit(370) determines a position where the defect detection signal is generated as a position of a symbol in which it is predicted that an error is generated, and performs error correction.
    • 提供了一种用于检测和恢复缺陷区域的方法和使用该方法的盘驱动器,以准确地通知产生缺陷的位置的纠错处理块,并提高恢复能力。 VGA(可变增益放大器)(310)改变并放大从目标电平实现的从记录介质读取的信号的增益。 增益变化量检测单元(350)检测VGA(310)的增益变化量。 缺陷位置检测单元(360)将检测到的增益变化量与特定阈值进行比较,并且当增益变化量超过特定阈值时产生缺陷检测信号。 误差校正处理单元(370)确定产生缺陷检测信号的位置作为预测出产生错误的符号的位置,并执行纠错。