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1. 发明授权

US06625131B1 Satellite communication multicast processing techniques using multicast replication and outbound processing 有权
标题翻译：卫星通信组播处理技术采用组播复制和出站处理
公开(公告)号：US06625131B1
公开(公告)日：2003-09-23
申请号：US09407416
申请日：1999-09-29
申请人： Gefferie H. Yee-Madera , Darren R. Gregoire , Scott M. Takahashi , Roland Y. Wong , Zoltan Z. Stroll
发明人： Gefferie H. Yee-Madera , Darren R. Gregoire , Scott M. Takahashi , Roland Y. Wong , Zoltan Z. Stroll
IPC分类号： H04B7204
CPC分类号： H04Q3/66 , H04B7/18595 , H04L2012/5608 , H04Q11/0478 , H04Q2213/1302 , H04Q2213/1304 , H04Q2213/13106 , H04Q2213/13141 , H04Q2213/13166 , H04Q2213/13216 , H04Q2213/1329 , H04Q2213/1332 , H04Q2213/13333
摘要： A satellite communication system which performs multicast switching on data cells. A switch 80 receives the data cells at a set of input ports IP1 and directs those including a multicast routing code to a first set of output ports OP2 or OP128. The switch 80 also directs data cells effectively omitting the multicast routing code to a second set of output ports OP1. One or more multicast replication modules 110, 130 are coupled to the first set of output ports and replicate data cells requiring multicast processing. During the processing, the multicast routing code is effectively omitted and the replicated cells are coupled to input ports IP2 or IP 128 so that the replicated data cells are transmitted to the second set of output ports OP1. An outbound processing module 100 is coupled to output ports OP1 for processing the data cells for transmission over a satellite downlink transmitter 104.
摘要翻译：一种对数据信元执行组播切换的卫星通信系统。交换机80在一组输入端口IP1处接收数据信元，并将包括多播路由代码的数据单元指向第一组输出端口OP2或OP128。交换机80还将数据信元有效地省略到第二组输出端口OP1。一个或多个多播复制模块110,130耦合到第一组输出端口，并复制需要多播处理的数据单元。在处理过程中，组播路由代码被有效地省略，并且复制单元被耦合到输入端口IP2或IP 128，以便将复制的数据单元传输到第二组输出端口OP1。出站处理模块100耦合到输出端口OP1，用于处理数据信元以通过卫星下行链路发射机104传输。

2. 发明授权

US4829452A Small angle image rotation using block transfers 失效
标题翻译：使用块传输的小角度图像旋转
公开(公告)号：US4829452A
公开(公告)日：1989-05-09
申请号：US627995
申请日：1984-07-05
申请人： Sang-Chul Kang , Zoltan Z. Stroll , Stephen C. Miller
发明人： Sang-Chul Kang , Zoltan Z. Stroll , Stephen C. Miller
IPC分类号： G06T3/60
CPC分类号： G06T3/602
摘要： A simplified method for rotating a digital image through a small angle without the need for interpolation is described. The image is divided into small, square blocks, arranged in horizontal rows where each block is exactly to the left or right of the other blocks in the row, and into columns where each block in the column is offset to the right by one pixel with respect to the next higher block. The rotation is then accomplished by moving the lower rows to the left so that the columns are exactly vertical, and by moving the rightmost columns in a downward direction so that each block is one pixel below the block to its left. The result is a rotation of the image through a small angle. There is a considerable simplification gained from not rotating the data within each block which results in a slight distortion of the image, but for small angles, this is not noticeable.
摘要翻译：描述了通过小角度旋转数字图像而不需要插值的简化方法。图像被分成小的方块，排列成水平行，其中每个块恰好在行中的其他块的左侧或右侧，并且被列到列中的每个块向右偏移一个像素的列，尊重下一个更高的块。然后通过将下行移动到左侧使得列完全垂直，并且通过沿向下方向移动最右边的列使得每个块在其左侧的块下方一个像素来实现旋转。结果是图像以小角度旋转。通过不旋转每个块内的数据可以获得相当大的简化，这导致图像的轻微失真，但是对于小角度，这是不明显的。

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