公开(公告)号：US07324903B2

公开(公告)日：2008-01-29

申请号：US10919531

申请日：2004-08-17

申请人： Eing-seob Cho ,  Jae-song Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu

发明人： Eing-seob Cho ,  Jae-song Shim ,  Hyun-soo Park ,  Jae-wook Lee ,  Jung-hyun Lee ,  Eun-jin Ryu

IPC分类号： G01R13/00 ,  G06F11/30

CPC分类号： H04L1/205

摘要： A signal quality measuring method and apparatus in which a quality of a signal detected from an RF signal read out from a disk or a communications channel is measured by using eye pattern signals of the detected RF signals. Eye pattern signals representing time change of a waveform of the detected signal are generated and a signal quality value is generated based on an eye depth and/or an eye width measured from the eye pattern signals. A histogram of the eye pattern signals is used to identify a plurality of main level values which are used as a reference value in measuring the signal quality. Accordingly, signal characteristics in a high-density storage medium system or communication system may be accurately represented.

摘要翻译： 一种信号质量测量方法和装置，其中通过使用检测到的RF信号的眼图信号测量从从盘或通信信道读出的RF信号中检测到的信号的质量。 产生表示检测信号的波形的时间变化的眼图信号，并且基于从眼图信号测量的眼睛深度和/或眼睛宽度来生成信号质量值。 眼图信号的直方图用于识别在测量信号质量时用作参考值的多个主电平值。 因此，可以精确地表示高密度存储介质系统或通信系统中的信号特性。