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公开(公告)号：US07286598B2
公开(公告)日：2007-10-23
申请号：US10854732
申请日：2004-05-26
申请人： Axel Kochale , Klaus Gaedke , Friedrich Timmermann , Oliver Theis
发明人： Axel Kochale , Klaus Gaedke , Friedrich Timmermann , Oliver Theis
IPC分类号： H03K5/159
CPC分类号： G11B20/10212 , G11B20/10009 , G11B20/1426 , H03M5/145 , H03M7/46
摘要： A method for bit recovery in an asymmetric data channel, the method comprising the steps of: providing a non-linear equalization filter with two coefficient sets; using the non-linear equalization filter with a first coefficient set for compensating defects of a first type of transition between different storage states; and using the non-linear equalization filter with a second coefficient set for compensating defects of a second type of transition between different storage states.
摘要翻译： 一种用于非对称数据信道中比特恢复的方法，该方法包括以下步骤：提供具有两个系数组的非线性均衡滤波器; 使用具有用于补偿不同存储状态之间的第一类型转换的缺陷的第一系数组的非线性均衡滤波器; 以及使用具有用于补偿不同存储状态之间的第二类型转换的缺陷的第二系数组的非线性均衡滤波器。
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公开(公告)号：US20070064847A1
公开(公告)日：2007-03-22
申请号：US10556835
申请日：2004-04-27
申请人： Klaus Gaedke , Friedrich Timmermann , Axel Kochale , Ralf-Detlef Schaefer , Herbert Schutze , Marten Kabutz
发明人： Klaus Gaedke , Friedrich Timmermann , Axel Kochale , Ralf-Detlef Schaefer , Herbert Schutze , Marten Kabutz
IPC分类号： H04L7/00
CPC分类号： G11B20/10425 , G11B20/16 , G11B27/3027 , G11B2220/2545 , G11B2220/2562
摘要： A bit clock recovery apparatus for digital storage readout employing sync frames, where an oversampled readout signal is stored in memory, sync patterns are located in the signal using DSP means, distances of consecutive sync pattern locations are calculated, and bit clock is recovered from these distances and the knowledge about the data framing structure.
摘要翻译： 使用同步帧的数字存储读出的位时钟恢复装置，其中过采样的读出信号存储在存储器中，同步模式使用DSP装置位于信号中，计算连续同步模式位置的距离，并从其中恢复位时钟 距离和关于数据框架结构的知识。
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公开(公告)号：US07656982B2
公开(公告)日：2010-02-02
申请号：US10556835
申请日：2004-04-27
申请人： Klaus Gaedke , Friedrich Timmermann , Axel Kochale , Ralf-Detlef Schaefer , Herbert Schütze , Marten Kabutz
发明人： Klaus Gaedke , Friedrich Timmermann , Axel Kochale , Ralf-Detlef Schaefer , Herbert Schütze , Marten Kabutz
CPC分类号： G11B20/10425 , G11B20/16 , G11B27/3027 , G11B2220/2545 , G11B2220/2562
摘要： A bit clock recovery apparatus for digital storage readout employing sync frames, where an oversampled readout signal is stored in memory, sync patterns are located in the signal using DSP means, distances of consecutive sync pattern locations are calculated, and bit clock is recovered from these distances and the knowledge about the data framing structure.
摘要翻译： 使用同步帧的数字存储读出的位时钟恢复装置，其中过采样读出信号存储在存储器中，同步模式使用DSP装置位于信号中，计算连续同步模式位置的距离，并从其中恢复位时钟 距离和关于数据框架结构的知识。
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公开(公告)号：US07773002B2
公开(公告)日：2010-08-10
申请号：US12150828
申请日：2008-05-01
申请人： Oliver Theis , Friedrich Timmermann
发明人： Oliver Theis , Friedrich Timmermann
IPC分类号： H03M7/00
CPC分类号： H03M5/145
摘要： In a channel encoder comprising a dk-encoder stage and a precoding stage, obeyance of a repeated minimum transition runlength constraint is achieved because, between the dk-encoder and the precoder, data are passed through an RMTR encoder which replaces occurrences of a forbidden pattern by a current replacement pattern having the same length as the forbidden pattern. By appropriately selecting current replacement patterns from a predefined set of two different replacement patterns, DC-control can be achieved for the encoder output. The corresponding decoder is described, which also employs pattern replacement.These results are provided by a method of channel encoding binary data, wherein the data is contained in a n input sequence of data tuples. An input sequence of constrained tuples is generated that obeys the relationships heretorfore set forth. A post encoding step is applied with NRZI modulation to be used in a channel as described.
摘要翻译： 在包括dk编码器级和预编码级的信道编码器中，实现了重复的最小转换延长约束的遵守，因为在dk编码器和预编码器之间，数据通过RMTR编码器，该RMTR编码器代替禁止模式的出现 通过具有与禁止图案相同长度的当前替换图案。 通过从预定义的两组不同的替代模式中适当地选择当前的替换模式，可以为编码器输出实现直流控制。 描述了相应的解码器，其也采用模式替换。 这些结果由通道编码二进制数据的方法提供，其中数据被包含在数据元组的n个输入序列中。 生成约束元组的输入序列，其遵循之前阐述的关系。 后编码步骤应用于如所描述的在信道中使用的NRZI调制。
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公开(公告)号：US08560912B2
公开(公告)日：2013-10-15
申请号：US12998542
申请日：2009-10-28
CPC分类号： H03M5/145 , G11B20/10046 , G11B20/1426 , G11B2020/1457 , H03M13/2954
摘要： The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues is derived from given DC control bits that are anyway present in a data stream.
摘要翻译： 如果错误位置已知，则块代码的纠错能力可以加倍。 用于错误位置检测的现有技术方法总是涉及添加专用冗余数据，然后进行评估以产生错误位置信息。 本发明提出并描述了线索形式的错误位置信息是如何从存在于数据流中的给定DC控制位导出的。
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6.发明申请公开(公告)号：US20110225474A1
公开(公告)日：2011-09-15
申请号：US12998542
申请日：2009-10-28
CPC分类号： H03M5/145 , G11B20/10046 , G11B20/1426 , G11B2020/1457 , H03M13/2954
摘要： The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues is derived from given DC control bits that are anyway present in a data stream.
摘要翻译： 如果错误位置已知，则块代码的纠错能力可以加倍。 用于错误位置检测的现有技术方法总是涉及添加专用冗余数据，然后进行评估以产生错误位置信息。 本发明提出并描述了线索形式的错误位置信息是如何从存在于数据流中的给定DC控制位导出的。
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7.发明授权公开(公告)号：US07773001B2
公开(公告)日：2010-08-10
申请号：US12150680
申请日：2008-04-30
申请人： Oliver Theis , Friedrich Timmermann
发明人： Oliver Theis , Friedrich Timmermann
IPC分类号： H03M7/00
CPC分类号： H03M5/145 , G11B20/1426
摘要： For controlling the DC-content of a Run Length Limited RLL modulated channel bit stream organized in data blocks, control bits are periodically inserted into control blocks which are dynamically placed and sized near the data block boundaries in such a way as to enable independent dk-encoding of the data blocks body and the control blocks. Running digital sum differences are calculated. Control bit insertion is done in such a way that the d,k constraints of the RLL code are not violated, that the encoded dk sequence of the data block body is not altered, and that the running digital sum is minimized by eventually inverting the contribution of the data block body thereto. Compared to the number of data bits per data block, few control bits are sufficient to keep the digital sum variation DSV of the Running Digital Sum RDS small.
摘要翻译： 为了控制组织在数据块中的运行长度有限的RLL调制信道位流的DC内容，控制位被周期性地插入控制块中，这些控制块在数据块边界附近被动态放置和定尺寸，以使能独立的dk- 数据块体和控制块的编码。 计算运算数字和差。 以这样的方式完成控制位插入，使得RLL代码的d，k约束不被违反，数据块体的编码的dk序列不被改变，并且通过最终反转贡献来使运行的数字和被最小化 的数据块体。 与每个数据块的数据位数相比，几个控制位足以保持运行数字和RDS的数字和变化DSV小。
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公开(公告)号：US20080278356A1
公开(公告)日：2008-11-13
申请号：US12150680
申请日：2008-04-30
申请人： Oliver Theis , Friedrich Timmermann
发明人： Oliver Theis , Friedrich Timmermann
IPC分类号： H03M7/00
CPC分类号： H03M5/145 , G11B20/1426
摘要： For controlling the DC-content of a Run Length Limited RLL modulated channel bit stream organized in data blocks, control bits are periodically inserted into control blocks which are dynamically placed and sized near the data block boundaries in such a way as to enable independent dk-encoding of the data blocks body and the control blocks. Running digital sum differences are calculated. Control bit insertion is done in such a way that the d,k constraints of the RLL code are not violated, that the encoded dk sequence of the data block body is not altered, and that the running digital sum is minimized by eventually inverting the contribution of the data block body thereto. Compared to the number of data bits per data block, few control bits are sufficient to keep the digital sum variation DSV of the Running Digital Sum RDS small.
摘要翻译： 为了控制组织在数据块中的运行长度有限的RLL调制信道位流的DC内容，控制位被周期性地插入控制块中，这些控制块在数据块边界附近被动态放置和定尺寸，以使能独立的dk- 数据块体和控制块的编码。 计算运算数字和差。 以这样的方式完成控制位插入，使得RLL代码的d，k约束不被违反，数据块体的编码的dk序列不被改变，并且通过最终反转贡献来使运行的数字和被最小化 的数据块体。 与每个数据块的数据位数相比，几个控制位足以保持运行数字和RDS的数字和变化DSV小。
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公开(公告)号：US20080272940A1
公开(公告)日：2008-11-06
申请号：US12150828
申请日：2008-05-01
申请人： Oliver Theis , Friedrich Timmermann
发明人： Oliver Theis , Friedrich Timmermann
IPC分类号： H03M7/00
CPC分类号： H03M5/145
摘要： In a channel encoder comprising a dk-encoder stage and a precoding stage, obeyance of a repeated minimum transition runlength constraint is achieved because, between the dk-encoder and the precoder, data are passed through an RMTR encoder which replaces occurrences of a forbidden pattern by a current replacement pattern having the same length as the forbidden pattern. By appropriately selecting current replacement patterns from a predefined set of two different replacement patterns, DC-control can be achieved for the encoder output. The corresponding decoder is described, which also employs pattern replacement.
摘要翻译： 在包括dk编码器级和预编码级的信道编码器中，实现了重复的最小转换延长约束的遵守，因为在dk编码器和预编码器之间，数据通过RMTR编码器，该RMTR编码器代替禁止模式的出现 通过具有与禁止图案相同长度的当前替换图案。 通过从预定义的两组不同的替代模式中适当地选择当前的替换模式，可以为编码器输出实现直流控制。 描述了相应的解码器，其也采用模式替换。
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10.发明授权Method and apparatus for recording on a storage medium or replaying from a storage medium data packets of a transport stream 失效用于在存储介质上记录或从存储介质重播传输流的数据分组的方法和装置公开(公告)号：US07027712B2
公开(公告)日：2006-04-11
申请号：US09826972
申请日：2001-04-05
CPC分类号： G11B27/034 , G11B27/032 , G11B27/10 , G11B27/3036 , G11B2220/216 , G11B2220/2562 , G11B2220/2575 , G11B2220/90
摘要： MPEG2 data streams contain data packets for a set of programs and time stamps for data synchronization purposes. An MPEG2 transport stream is assembled of fixed-length transport packets. The received transport packets of at least one specific program of this set of programs can be stored using for example a DVD Streamer recorder or DVD-RAM recorder. For the real-time playback of recorded specific program data packets each packet needs a separate time stamp. For that reason a timestamp is to be captured for each data packet at recording time. However, capturing of timestamps from a transport stream is a very time consuming action in software implementation processing. Therefore transport stream timestamps are captured for every Nth packet only and the missing timestamps are calculated. Thereby software-processing time is saved for generating the timestamps required for real-time bitstream recording.
摘要翻译： MPEG2数据流包含用于数据同步目的的一组程序和时间戳的数据分组。 MPEG2传输流由固定长度的传输分组组合。 可以使用例如DVD流式录放机或DVD-RAM记录器来存储该组程序的至少一个特定程序的接收的传送分组。 对于记录的特定程序数据分组的实时回放，每个分组需要单独的时间戳。 因此，在记录时间，每个数据包将捕获时间戳。 然而，从传输流捕获时间戳是软件实现处理中非常耗时的动作。 因此，传输流时间戳仅针对每第N个数据包进行捕获，并计算出缺少的时间戳。 从而节省了软件处理时间，用于生成实时比特流记录所需的时间戳。
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