公开(公告)号：US06940671B2

公开(公告)日：2005-09-06

申请号：US09963879

申请日：2001-09-26

申请人： Edmun ChianSong Seng ,  AikChuan Lim ,  Kay Hee Tang ,  UttHeng Kan ,  Jeffrey Soon Beng Sim

发明人： Edmun ChianSong Seng ,  AikChuan Lim ,  Kay Hee Tang ,  UttHeng Kan ,  Jeffrey Soon Beng Sim

IPC分类号： G11B5/09 ,  G11B7/005 ,  G11B20/10 ,  G11B20/18 ,  G11B27/36 ,  H04L1/00 ,  H04L1/20

CPC分类号： H04L1/20 ,  G11B5/09 ,  G11B7/005 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10296 ,  G11B20/182 ,  G11B27/36 ,  G11B2220/20 ,  H04B17/336 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/242 ,  H04L25/03012

摘要： Systems and methods are provided through which a time domain equalized signal-to-noise-ratio (ESNR) of an electronic device is determined by executing ESNR determining firmware in the electronic device. The ESNR is used to perform rejection/acceptance testing of the electronic device during manufacturing of the device, and/or to perform read channel tuning and optimization. In one embodiment, determination of the ESNR includes both phase level retry and global level retry.

摘要翻译： 提供了通过在电子设备中执行ESNR确定固件来确定电子设备的时域均衡信噪比（ESNR）的系统和方法。 ESNR用于在设备制造过程中执行电子设备的拒绝/验收测试，和/或执行读取通道调优和优化。 在一个实施例中，ESNR的确定包括阶段级重试和全局级重试。

公开(公告)号：US06990607B2

公开(公告)日：2006-01-24

申请号：US09965669

申请日：2001-09-27

申请人： Jeffrey Soon Beng Sim ,  WeiLoon Ng ,  Aik Chuan Lim ,  YongPeng Chng ,  Kay Hee Tang ,  Steven TianChye Cheok

发明人： Jeffrey Soon Beng Sim ,  WeiLoon Ng ,  Aik Chuan Lim ,  YongPeng Chng ,  Kay Hee Tang ,  Steven TianChye Cheok

IPC分类号： G06F11/00

CPC分类号： G11B20/1883 ,  G11B2220/20

摘要： In one embodiment of the present invention, systems and methods are provided through which the capacity of a defect buffer in a microcontroller of a mass storage device is determined without regard for the quantity of defects on a recording medium. The capacity of the defect buffer is determined in varying examples, based on the amount of available buffer space and/or the application of the storage device. In one embodiment, the capacity of the defect buffer is less than the quantity of defects on the recording medium, wherein entries in a defect table on the recording medium are swapped in and out of the defect buffer as needed, such as using a most-recently-used scheme. In another embodiment of the present invention, systems and methods are provided through which the defect table is partitioned into a plurality of segments that are physically distributed throughout the recording medium.