专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06795515B1 Method and apparatus for locating sampling points in a synchronous data stream 失效
标题翻译：用于定位同步数据流中采样点的方法和装置
公开(公告)号：US06795515B1
公开(公告)日：2004-09-21
申请号：US09547919
申请日：2000-04-11
申请人： Christopher G. Riedle , Jean-Claude Abbiate , Alain Richard Blanc , Daniel Wind
发明人： Christopher G. Riedle , Jean-Claude Abbiate , Alain Richard Blanc , Daniel Wind
IPC分类号： H03K19096
CPC分类号： H04L7/0338 , H04L7/046
摘要： An apparatus and process for updating a sample time in a serial link which converts serial data in parallel data. A delay line stores multiple samples of at least two data bits received over the serial link. The contents of the delay line are matched so that they can be analyzed by a processor to determine an optimum sampling position in the delay line. The processor is programmed to analyze contents of the latch by creating a sample mask from a plurality of delay line samples. The sample mask identifies transition edges of first and second data bits within the delay line. The transition edges are validated with respect to the presence, for first and second initial sampling positions for the respective data bits. New sampling positions are determined from the validated edges, and the initial sampling positions are updated with sampling positions which have been determined from the new sampling positions. In this way phase jitter induced by environmental concerns is minimized using new sampling positions along the delay line for coding the data into parallel data.
摘要翻译：一种用于更新以并行数据转换串行数据的串行链路中的采样时间的装置和处理。延迟线存储通过串行链路接收的至少两个数据位的多个样本。延迟线的内容被匹配，使得它们可以被处理器分析以确定延迟线中的最佳采样位置。处理器被编程为通过从多个延迟线样本中创建采样掩模来分析锁存器的内容。采样掩码识别延迟线内的第一和第二数据位的转换边缘。对于相应数据位的第一和第二初始采样位置的存在，过渡边缘被验证。从验证的边缘确定新的采样位置，并且利用从新采样位置确定的采样位置更新初始采样位置。以这种方式，使用沿着延迟线的新采样位置来最小化由环境问题引起的相位抖动，以将数据编码为并行数据。

IPRDB

热门服务

关于我们

友情链接

联系方式