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1. 发明授权

US06898756B1 System and method for enabling efficient error correction and encryption using wavelet transforms over finite fields 失效
标题翻译：用于通过有限域的小波变换实现有效的纠错和加密的系统和方法
公开(公告)号：US06898756B1
公开(公告)日：2005-05-24
申请号：US09268555
申请日：1999-03-15
申请人： Faramarz Fekri , Steven W. McLaughlin , Russell M. Mersereau , Ronald W. Schafer
发明人： Faramarz Fekri , Steven W. McLaughlin , Russell M. Mersereau , Ronald W. Schafer
IPC分类号： H03M13/00 , H03M13/03
CPC分类号： H03M13/134 , H03M13/00
摘要： A system and method for enabling efficient error correction and encryption using wavelet transforms over finite fields. The system and method utilizes the combination of a channel encoder and channel decoder to correct errors to source data after transmission over a physical channel or storage in a storage medium. The channel encoder mathematically generates a set of wavelet coefficients by performing a combination of filtering and/or processing of a received message vector. The wavelet coefficients are then utilized by the channel encoder to cause its filters to transform message data into transmission data. The channel decoder receives the transmitted source data in the form of a code word/channel error combination and performs filtering to render a syndrome, representative of the channel error. Analysis of the syndrome is performed to determine the actual error, which is utilized to derive the actual source data.
摘要翻译：一种使用有限域小波变换实现有效的纠错和加密的系统和方法。该系统和方法利用信道编码器和信道解码器的组合来在通过存储介质中的物理信道或存储器传输之后校正源数据的错误。信道编码器通过执行接收到的消息向量的过滤和/或处理的组合来数学地生成一组小波系数。然后，信道编码器利用小波系数使其滤波器将消息数据转换成传输数据。信道解码器以码字/信道错误组合的形式接收发送的源数据，并且执行滤波以表示信道错误。执行综合征的分析以确定用于导出实际源数据的实际误差。

2. 发明授权

US07117423B2 Methods and systems for multiple substream unequal error protection and error concealment 失效
公开(公告)号：US07117423B2
公开(公告)日：2006-10-03
申请号：US10423846
申请日：2003-04-24
申请人： Joohee Kim , Russell M. Mersereau , Yucel Altunbasak
发明人： Joohee Kim , Russell M. Mersereau , Yucel Altunbasak
IPC分类号： H03M13/35 , H04L1/02
CPC分类号： H04L1/007 , H04L1/0041 , H04L1/0045
摘要： Methods and systems for streaming data in a network. Whether the network is experiencing high packet loss may be determined by a rate control module. If high packet loss is experienced, data is encoded into multiple streams by a coder using temporal domain partitioning. If high packet loss is not experienced, then data may is encoded by using frequency domain partitioning. Unequal error protection is applied to each of the streams so more important bit planes in a bit of a stream are provided with more error protection than less important bit planes. The streams are transmitted along, respectively, independent paths to a decoder. The streams are decoded, and errors in the decoded streams are corrected by using information from one or more of the other decoded streams. The decoded corrected streams are reconstructed into the data.

3. 发明授权

US5444489A Vector quantization video encoder using hierarchical cache memory scheme 失效
标题翻译：使用分层高速缓存存储器方案的矢量量化视频编码器
公开(公告)号：US5444489A
公开(公告)日：1995-08-22
申请号：US16813
申请日：1993-02-11
申请人： Kwan K. Truong , Russell M. Mersereau
发明人： Kwan K. Truong , Russell M. Mersereau
IPC分类号： G06F12/08 , G06T9/00 , H04N7/26 , H04N7/28 , H04N7/36 , H04N7/30 , H04N7/32
CPC分类号： G06T9/008 , G06F12/0875 , H04N19/503 , H04N19/51 , H04N19/94 , H04N19/96
摘要： A system compresses image blocks via successive hierarchical stages and motion encoders which employ caches updated by stack replacement algorithms. Initially, a background detector compares the present image block with a corresponding previously encoded image block and if similar, the background detector terminates the encoding procedure by setting a flag bit. Otherwise, the image block is decomposed into smaller present image subblocks. The smaller present image subblocks are each compared with a corresponding previously encoded image subblock of comparable size within the present image block. When a present image subblock is similar to a corresponding previously encoded image subblock, then the procedure is terminated by setting a flag bit. Alternatively, the present image subblock is forwarded to a motion encoder where it is compared with displaced image subblocks, which are formed by displacing previously encoded image subblocks by motion vectors that are stored in a cache, to derive a first distortion vector. When the first distortion vector is below a first threshold T.sub.M, the procedure is terminated and the present image subblock is encoded by setting flag bit and a cache index corresponding to the first distortion vector. Alternatively, the present image subblock is passed to a block matching encoder where it is compared with other previously encoded image subblocks to derive a second distortion vector. When the second distortion vector is below a second threshold T.sub.m, the procedure is terminated by setting a flag bit, by generating the second distortion vector, and by updating the cache.
摘要翻译：系统通过连续分级阶段压缩图像块，并使用采用由堆叠替换算法更新的缓存的运动编码器。最初，背景检测器将当前图像块与对应的先前编码的图像块进行比较，如果相似，则背景检测器通过设置标志位终止编码过程。否则，图像块被分解成更小的当前图像子块。每个较小的当前图像子块与当前图像块内的相当大小的对应的先前编码的图像子块进行比较。当当前图像子块类似于对应的先前编码的图像子块时，通过设置标志位终止该过程。或者，当前图像子块被转发到运动编码器，在该运动编码器中，与移位的图像子块进行比较，其中移位的图像子块通过由存储在高速缓存中的运动矢量移位先前编码的图像子块而形成，以导出第一失真向量。当第一失真向量低于第一阈值TM时，过程终止，并且通过设置标志位和对应于第一失真向量的高速缓存索引对当前图像子块进行编码。或者，当前图像子块被传递到块匹配编码器，其中它与其他先前编码的图像子块进行比较以导出第二失真向量。当第二失真向量低于第二阈值Tm时，通过设置标志位，通过产生第二失真向量并更新高速缓存来终止该过程。

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