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1. 发明申请

US20070025483A1 Methods and apparatus for clock synchronization and data recovery in a receiver 有权
标题翻译：接收机中时钟同步和数据恢复的方法和装置
公开(公告)号：US20070025483A1
公开(公告)日：2007-02-01
申请号：US11193868
申请日：2005-07-29
申请人： Azita Emami-Neyestanak , Mounir Meghelli , Benjamin Parker , Sergey Rylov , Alexander Rylyakov , Jose Tierno
发明人： Azita Emami-Neyestanak , Mounir Meghelli , Benjamin Parker , Sergey Rylov , Alexander Rylyakov , Jose Tierno
IPC分类号： H04L7/00
CPC分类号： H04L7/0337
摘要： Clock synchronization and data recovery techniques are disclosed. For example, a technique for synchronizing a clock for use in recovering received data comprises the following steps/operations. A first clock (e.g., a data clock) is set for a first sampling cycle to a first phase position within a given unit interval in the received data. A second clock (e.g., a sweep clock) is swept through other phase positions with respect to the first phase position such that a transition from the given unit interval to another unit interval in the received data is determined. A sampling point is determined based on measurements at the phase positions associated with the second clock. The second clock is set to the phase position corresponding to the sampling point such that data may be recovered at that sampling point. Further, for a next sampling cycle, the first clock may be used to sweep through phase positions with respect to the set phase position of the second clock corresponding to the sampling point in the first sampling cycle such that a next sampling point may be determined.
摘要翻译：公开了时钟同步和数据恢复技术。例如，用于同步用于恢复接收到的数据的时钟的技术包括以下步骤/操作。将第一时钟（例如，数据时钟）设置为在接收到的数据中的给定单位间隔内的第一相位位置的第一采样周期。第二时钟（例如，扫频时钟）相对于第一相位位置被扫过其它相位位置，从而确定在接收数据中从给定单位间隔到另一个单位间隔的转变。基于与第二时钟相关联的相位位置处的测量来确定采样点。将第二时钟设置为对应于采样点的相位位置，使得可以在该采样点恢复数据。此外，对于下一采样周期，可以使用第一时钟相对于与第一采样周期中的采样点对应的第二时钟的设置相位位置扫描相位位置，使得可以确定下一采样点。

2. 发明授权

US07602869B2 Methods and apparatus for clock synchronization and data recovery in a receiver 有权
标题翻译：接收机中时钟同步和数据恢复的方法和装置
公开(公告)号：US07602869B2
公开(公告)日：2009-10-13
申请号：US11193868
申请日：2005-07-29
申请人： Azita Emami-Neyestanak , Mounir Meghelli , Benjamin D. Parker , Sergey V. Rylov , Alexander V. Rylyakov , Jose A. Tierno
发明人： Azita Emami-Neyestanak , Mounir Meghelli , Benjamin D. Parker , Sergey V. Rylov , Alexander V. Rylyakov , Jose A. Tierno
IPC分类号： H04L7/00
CPC分类号： H04L7/0337
摘要： Clock synchronization and data recovery techniques are disclosed. For example, a technique for synchronizing a clock for use in recovering received data comprises the following steps/operations. A first clock (e.g., a data clock) is set for a first sampling cycle to a first phase position within a given unit interval in the received data. A second clock (e.g., a sweep clock) is swept through other phase positions with respect to the first phase position such that a transition from the given unit interval to another unit interval in the received data is determined. A sampling point is determined based on measurements at the phase positions associated with the second clock. The second clock is set to the phase position corresponding to the sampling point such that data may be recovered at that sampling point. Further, for a next sampling cycle, the first clock may be used to sweep through phase positions with respect to the set phase position of the second clock corresponding to the sampling point in the first sampling cycle such that a next sampling point may be determined.
摘要翻译：公开了时钟同步和数据恢复技术。例如，用于同步用于恢复接收到的数据的时钟的技术包括以下步骤/操作。将第一时钟（例如，数据时钟）设置为在接收到的数据中的给定单位间隔内的第一相位位置的第一采样周期。第二时钟（例如，扫描时钟）相对于第一相位位置扫过其它相位位置，从而确定从接收到的数据中的给定单位间隔到另一个单位间隔的转变。基于与第二时钟相关联的相位位置处的测量来确定采样点。将第二时钟设置为对应于采样点的相位位置，使得可以在该采样点恢复数据。此外，对于下一采样周期，可以使用第一时钟相对于与第一采样周期中的采样点对应的第二时钟的设置相位位置扫描相位位置，使得可以确定下一采样点。

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