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1. 发明授权

US07668210B1 Method and apparatus for reducing current demand variations in large fan-out trees 有权
标题翻译：用于减少大型扇出树的电流需求变化的方法和装置
公开(公告)号：US07668210B1
公开(公告)日：2010-02-23
申请号：US10830031
申请日：2004-04-23
申请人： Winston Ki-Cheong Mok , Scott A. Muma , Nicholas W. Rolheiser
发明人： Winston Ki-Cheong Mok , Scott A. Muma , Nicholas W. Rolheiser
IPC分类号： H04J3/04
CPC分类号： H04Q11/04 , H04J3/1611 , H04Q2213/13292 , H04Q2213/13339 , H04Q2213/13367
摘要： A method and apparatus are provided for reducing current demand variations in large fanout trees. The fanout tree is split into at least 2 sub-groups, each preferably with substantially equal parasitic capacitance. Data is then scrambled according to a scrambling sequence function to provide scrambled data having a constant number of bits that are toggled with respect to time, such as when observed in pairs of sub-groups. Functionally, an apparatus according to an embodiment of the present invention includes 3 blocks: a scrambler, egress logic, and a de-scrambler. The egress logic is simply a block of storage that can reorder the bytes received from the scrambler. The de-scrambler de-scrambles the retransmitted data based on the scrambling sequence function. Embodiments of the present invention can be applied to any system where data must fanout from a single source to many destinations, such as switches.
摘要翻译：提供了一种用于减少大型扇出树中的电流需求变化的方法和装置。扇出树被分成至少两个子组，每个子组优选地具有基本相等的寄生电容。然后根据加扰序列功能对数据进行加扰，以提供具有相对于时间被切换的固定位数的加扰数据，诸如当以子对对观察时。在功能上，根据本发明的实施例的装置包括3个块：加扰器，出口逻辑和解扰器。出口逻辑只是一个存储块，可以对从扰码器接收的字节进行重新排序。去扰频器基于加扰序列功能解密重传的数据。本发明的实施例可以应用于数据必须从单个源扇出到诸如交换机之类的许多目的地的任何系统。

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