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1. 发明授权

US06393072B1 Channel decoder using vocoder joint statistics 有权
标题翻译：频道解码器使用声码器联合统计
公开(公告)号：US06393072B1
公开(公告)日：2002-05-21
申请号：US09340102
申请日：1999-06-25
申请人： John Anderson Fergus Ross , Nick Andrew Van Stralen , Mark Lewis Grabb , Steven Robert Koch , Richard Louis Zinser, Jr. , John Bailey Anderson
发明人： John Anderson Fergus Ross , Nick Andrew Van Stralen , Mark Lewis Grabb , Steven Robert Koch , Richard Louis Zinser, Jr. , John Bailey Anderson
IPC分类号： H04L2706
CPC分类号： H04L1/0047 , H04L25/061 , H04L25/067
摘要： A method for decoding (voice)data where the data is encoded by a finite-state data encoder (216) for transmission over a data channel (18), includes the step of procuring a table of joint statistics representing the probability of occurrence, in a frame of source data of each of the bits of the frame. The joint statistics may be determined ahead of time. The method includes the step of calculating intermediate gamma signals in response to the decoded data of the preceding frame and the joint statistics. The joint statistics source distribution signals represent the likelihood that, for a given logic level of the preceding bit, the “current” bit takes on a particular state; for uncorrelated bits, this value is 0.5. State probability signals and transition probability signals are generated from the gamma signals. The state probability and transition probability signals are processed to produce bit probability signals indicative of the probability that the current bit is in a given state, from which hard bit decisions can be made.
摘要翻译：一种用于解码（语音）数据的方法，其中数据由有限状态数据编码器（216）编码，用于通过数据信道（18）进行传输，包括以下步骤：采购表示发生概率的联合统计表，帧的每个比特的源数据帧。联合统计可以提前确定。该方法包括响应于前一帧的解码数据和联合统计来计算中间伽马信号的步骤。联合统计源分布信号表示对于前一比特的给定逻辑电平，“当前”比特处于特定状态的可能性; 对于不相关的位，此值为0.5。从伽马信号产生状态概率信号和转移概率信号。处理状态概率和转移概率信号以产生指示当前比特处于给定状态的概率的比特概率信号，从中可以进行硬比特决定。

2. 发明授权

US06304299B1 System and method for mitigating multipath effects in television systems 有权
标题翻译：用于减轻电视系统中多路径效应的系统和方法
公开(公告)号：US06304299B1
公开(公告)日：2001-10-16
申请号：US09201376
申请日：1998-11-30
申请人： Richard Louis Frey , Naofal Mohammed Wassel Al-Dhahir , Mark Lewis Grabb , John Anderson Fergus Ross , John Erik Hershey , Nick Andrew Van Stralen
发明人： Richard Louis Frey , Naofal Mohammed Wassel Al-Dhahir , Mark Lewis Grabb , John Anderson Fergus Ross , John Erik Hershey , Nick Andrew Van Stralen
IPC分类号： H04N521
CPC分类号： H04N5/211
摘要： A wide-band overlay sequence generator adds an overlay signal to a television signal which is transmitted through a channel. At a receiver, a replica of the transmitted overlay sequence is generated and synchronized to the overlay signal in the received signal. An adaptive equalizer filter effectively adjusts the received television signal so that the channel perturbations are removed from the signal.
摘要翻译：宽带覆盖序列发生器将叠加信号添加到通过信道传输的电视信号。在接收机处，生成并发送覆盖序列的副本并将其与接收信号中的覆盖信号同步。自适应均衡器滤波器有效地调整接收到的电视信号，从而从信号中去除信道扰动。

3. 发明授权

US06570927B1 Method for tail-biting and decoding recursive systematic codes 失效
标题翻译：递归和解码递归系统代码的方法
公开(公告)号：US06570927B1
公开(公告)日：2003-05-27
申请号：US09340101
申请日：1999-06-25
申请人： Nick Andrew Van Stralen , John Anderson Fergus Ross , John Bailey Anderson
发明人： Nick Andrew Van Stralen , John Anderson Fergus Ross , John Bailey Anderson
IPC分类号： H04B1404
CPC分类号： H03M13/235 , H03M13/3938 , H03M13/6362
摘要： A method is described for convolutionally encoding and decoding data (voice coded data), organized into (35-bit, 20 msec) frames, where the data is encoded by a finite-state data encoder (RSC coder 216) for transmission over a data channel (18). The RSC encoder avoids the need for termination bits associated with each N-bit frame of data, so that the number of bits associated with each encoded frame is reduced, and the throughput of the channel can be increased. The method according to the invention includes storing the first M bits of each frame. Once they are stored, they are loaded in parallel into the M stages of the encoder, thereby deleting residual states from the preceding frame. The remaining (N−M) bits are then applied to the encoder, causing it to produce the convolutional code. After the last of the (N−M) bits are encoded, the M stored bits are summed with feedback from the encoder, and reapplied to the encoder. The ending state of the encoder is thus equal to the starting state.
摘要翻译：描述了一种用于对组织成（35位，20毫秒）帧的数据（语音编码数据）进行卷积编码和解码的方法，其中数据由有限状态数据编码器（RSC编码器216）编码，用于通过数据传输通道（18）。 RSC编码器避免需要与每个N位数据帧相关联的终止位，从而减少与每个编码帧相关联的比特数，并且可以增加信道的吞吐量。根据本发明的方法包括存储每帧的前M位。一旦它们被存储，它们被并行地加载到编码器的M个级中，从而从前一帧中删除残余状态。剩余的（N-M）位然后被施加到编码器，使其产生卷积码。在编码最后一个（N-M）位之后，M个存储的位与来自编码器的反馈相加，并重新应用于编码器。因此编码器的结束状态等于起始状态。

4. 发明授权

US06223319B1 Turbo code decoder with controlled probability estimate feedback 失效
标题翻译：具有受控概率估计反馈的Turbo码解码器
公开(公告)号：US06223319B1
公开(公告)日：2001-04-24
申请号：US09137257
申请日：1998-08-20
申请人： John Anderson Fergus Ross , Stephen Michael Hladik , Nick Andrew Van Stralen , John Bailey Anderson
发明人： John Anderson Fergus Ross , Stephen Michael Hladik , Nick Andrew Van Stralen , John Bailey Anderson
IPC分类号： G06F1110
CPC分类号： H03M13/3905 , H03M13/2957 , H03M13/3933 , H03M13/6577 , H03M13/658
摘要： A feedback control for a turbo decoder controls the feedback between component decoders by modifying updated a priori probabilities calculated by one component decoder and used as inputs to another component decoder during the decoding process, resulting in a significant performance advantage. A feedback control switch selects either previously estimated a posteriori probabilities, modifications of these values, or neutral values as a priori probabilities utilized by the next component decoder.
摘要翻译：用于turbo解码器的反馈控制通过修改由一个分量解码器计算出的先验概率并在解码过程中用作另一个分量解码器的输入来控制组件解码器之间的反馈，从而产生显着的性能优势。反馈控制开关选择先前估计的后验概率，这些值的修改或中性值作为下一个组件解码器利用的先验概率。

5. 发明授权

US08089846B2 Method and system for modulation coding and synchronization 有权
标题翻译：用于调制编码和同步的方法和系统
公开(公告)号：US08089846B2
公开(公告)日：2012-01-03
申请号：US12336399
申请日：2008-12-16
申请人： John Erik Hershey , Nick Andrew Van Stralen , Harold Woodruff Tomlinson, Jr. , John Anderson Fergus Ross , Zhiyuan Ren , Zexin Pan , Victor Petrovich Ostroverkhov , Xiaolei Shi
发明人： John Erik Hershey , Nick Andrew Van Stralen , Harold Woodruff Tomlinson, Jr. , John Anderson Fergus Ross , Zhiyuan Ren , Zexin Pan , Victor Petrovich Ostroverkhov , Xiaolei Shi
IPC分类号： G11B7/00
CPC分类号： G11B7/14 , G11B7/0065 , G11B20/1426 , G11B20/1833 , G11B2220/2504
摘要： The present techniques provide systems and methods for modulation coding of data on optical disks, such as holographic data disks, and techniques for reading that data back from the disks. The techniques involve parsing a bit stream into a sequence of individual bit-patterns, and then using the individual bit patterns to select a symbol, or matrix, from a lookup table of previously selected matrices. The symbols are selected according to predetermined criteria that may help make the disk more resistant to interferences and errors, such as surface scratches, and the like. For example, criteria that may be used to select the symbols are the number of reflective and non-reflective regions within each matrix, and the number of sequential reflective regions, among others. The symbols may be written to the disk in a two-dimensional fashion, e.g., across adjacent tracks, or in a three-dimensional fashion, e.g., across adjacent data layers.
摘要翻译：本技术提供了用于光盘上的数据的调制编码的系统和方法，例如全息数据盘，以及从盘读出数据的技术。这些技术涉及将比特流解析为单个比特模式的序列，然后使用各个比特模式从先前选择的矩阵的查找表中选择符号或矩阵。根据预定标准来选择符号，其可以帮助磁盘更好地抵抗诸如表面划痕等的干扰和错误。例如，可以用于选择符号的标准是每个矩阵内的反射和非反射区域的数量，以及顺序反射区域的数量等等。这些符号可以以二维方式写入盘中，例如跨越相邻的轨道，或以三维方式，例如跨越相邻的数据层。

6. 发明申请

US20100157757A1 SYSTEM AND METHOD FOR STORAGE OF DATA IN CIRCULAR DATA TRACKS ON OPTICAL DISCS 有权
标题翻译：用于存储光盘上圆形数据轨道中的数据的系统和方法
公开(公告)号：US20100157757A1
公开(公告)日：2010-06-24
申请号：US12342794
申请日：2008-12-23
申请人： John Anderson Fergus Ross , Kenneth Brakeley Welles , John Erik Hershey , Nick Andrew Van Stralen , Victor Petrovich Ostroverkhov
发明人： John Anderson Fergus Ross , Kenneth Brakeley Welles , John Erik Hershey , Nick Andrew Van Stralen , Victor Petrovich Ostroverkhov
IPC分类号： G11B15/52
CPC分类号： G11B7/005 , G11B20/10009 , G11B20/10287 , G11B20/10296 , G11B20/1803 , G11B20/1833 , G11B2020/183 , G11B2220/2537
摘要： The present techniques provide methods and systems for reading and processing a data signal read from an optical data disc. In embodiments, an optical reader system may read data bits from a data ring in the disc. The data rings may be concentric, and a beginning of a sequence of data on the data ring may be in substantially the same position as an ending of the sequence. The reader may identify a data ring and begin the read process on the targeted data ring, and may end the read process when the reader reaches the starting point. The data sequence read from the data ring may be decoded to form a bit stream, which may be provided to various output devices. A circular trellis formed from the bit stream may enable the reading of a targeted data sequence without additional tail bits to improve data transmission efficiency.
摘要翻译：本技术提供了用于读取和处理从光学数据盘读取的数据信号的方法和系统。在实施例中，光学读取器系统可以从盘中的数据环读取数据位。数据环可以是同心的，并且数据环上的数据序列的开始可以与序列的结尾基本上在相同的位置。读取器可以识别数据环并且在目标数据环上开始读取过程，并且当读取器到达起始点时可以结束读取过程。可以对从数据环读取的数据序列进行解码以形成可被提供给各种输出设备的比特流。从比特流形成的圆形网格可以使得能够读取目标数据序列而不需要额外的尾比特来提高数据传输效率。

7. 发明申请

US20100149958A1 METHOD AND SYSTEM FOR MODULATION CODING AND SYNCHRONIZATION 有权
标题翻译：用于调制编码和同步的方法和系统
公开(公告)号：US20100149958A1
公开(公告)日：2010-06-17
申请号：US12336399
申请日：2008-12-16
申请人： John Erik Hershey , Nick Andrew Van Stralen , Harold Woodruff Tomlinson, JR. , John Anderson Fergus Ross , Zhiyuan Ren , Zexin Pan , Victor Petrovich Ostroverkhov , Xiaolei Shi
发明人： John Erik Hershey , Nick Andrew Van Stralen , Harold Woodruff Tomlinson, JR. , John Anderson Fergus Ross , Zhiyuan Ren , Zexin Pan , Victor Petrovich Ostroverkhov , Xiaolei Shi
IPC分类号： G11B7/24
CPC分类号： G11B7/14 , G11B7/0065 , G11B20/1426 , G11B20/1833 , G11B2220/2504
摘要： The present techniques provide systems and methods for modulation coding of data on optical disks, such as holographic data disks, and techniques for reading that data back from the disks. The techniques involve parsing a bit stream into a sequence of individual bit-patterns, and then using the individual bit patterns to select a symbol, or matrix, from a lookup table of previously selected matrices. The symbols are selected according to predetermined criteria that may help make the disk more resistant to interferences and errors, such as surface scratches, and the like. For example, criteria that may be used to select the symbols are the number of reflective and non-reflective regions within each matrix, and the number of sequential reflective regions, among others. The symbols may be written to the disk in a two-dimensional fashion, e.g., across adjacent tracks, or in a three-dimensional fashion, e.g., across adjacent data layers.
摘要翻译：本技术提供了用于光盘上的数据的调制编码的系统和方法，例如全息数据盘，以及从盘读出数据的技术。这些技术涉及将比特流解析为单个比特模式的序列，然后使用各个比特模式从先前选择的矩阵的查找表中选择符号或矩阵。根据预定标准来选择符号，其可以帮助磁盘更好地抵抗诸如表面划痕等的干扰和错误。例如，可以用于选择符号的标准是每个矩阵内的反射和非反射区域的数量，以及顺序反射区域的数量等等。这些符号可以以二维方式写入盘中，例如跨越相邻的轨道，或以三维方式，例如跨越相邻的数据层。

8. 发明授权

US07127656B2 Turbo decoder control for use with a programmable interleaver, variable block length, and multiple code rates 有权
公开(公告)号：US07127656B2
公开(公告)日：2006-10-24
申请号：US10356872
申请日：2003-02-03
申请人： Nick Andrew Van Stralen , Stephen Michael Hladik , Abdallah Mahmoud Itani , Robert Gideon Wodnicki , John Anderson Fergus Ross
发明人： Nick Andrew Van Stralen , Stephen Michael Hladik , Abdallah Mahmoud Itani , Robert Gideon Wodnicki , John Anderson Fergus Ross
IPC分类号： H03M13/27 , H03M13/45 , H03M13/23 , H03M13/29 , H03M13/35
CPC分类号： H03M13/3905 , H03M13/2789 , H03M13/2957 , H03M13/3933 , H03M13/3961 , H03M13/6561
摘要： A turbo decoder control comprises an address generator for addressing systematic data, parity data, and systematic likelihood ratios according to a pre-determined memory mapping. The systematic data samples are accessed in the order required by the MAP decoding algorithm such that interleaving and de-interleaving functions in the MAP decoding algorithm are performed in real-time, i.e., without delay. Such memory-mapping in combination with data handling functions (e.g., multiplexing and combinatorial logic) minimizes memory requirements for the turbo decoder and allows for use of programmable interleavers, variable block lengths, and multiple code rates.

9. 发明授权

US06715120B1 Turbo decoder with modified input for increased code word length and data rate 有权
标题翻译： Turbo解码器具有修改的输入，增加码字长度和数据速率
公开(公告)号：US06715120B1
公开(公告)日：2004-03-30
申请号：US09561334
申请日：2000-04-28
申请人： Stephen Michael Hladik , Abdallah Mahmoud Itani , Nick Andrew Van Stralen , Robert Gideon Wodnicki , John Anderson Fergus Ross
发明人： Stephen Michael Hladik , Abdallah Mahmoud Itani , Nick Andrew Van Stralen , Robert Gideon Wodnicki , John Anderson Fergus Ross
IPC分类号： H03M1329
CPC分类号： H03M13/3905 , H03M13/2957 , H03M13/3933 , H03M13/3972
摘要： A turbo decoder system utilizing a MAP decoding algorithm has a predetermined number of turbo decoder modules for decoding segments of a turbo code component code word in parallel, thereby expanding the block-length and data rate capability of the turbo decoder. Upon completion of any half iteration of the MAP decoding algorithm, the a posteriori bit probability estimates are provided to an interleave/de-interleave-and-convert-data function block wherein they are re-ordered, segmented, used to modify the original received data samples, and provided back to the respective turbo decoder modules as input data samples for the systematic bits. Decoding continues in this manner until a predetermined number of half iterations is performed, and data decisions are made on the final a posteriori estimates.
摘要翻译：利用MAP解码算法的turbo解码器系统具有预定数量的turbo解码器模块，用于并行地解码turbo码分量码字的段，从而扩展turbo解码器的块长度和数据速率能力。在完成MAP解码算法的任何半迭代之后，将后验比特概率估计提供给交织/解交织和转换数据功能块，其中它们被重新排序，分段，用于修改原始接收数据样本，并提供给相应的turbo解码器模块作为系统比特的输入数据样本。以这种方式继续解码直到执行预定数量的半迭代，并且对最后的后验估计进行数据判定。

10. 发明授权

US06263467B1 Turbo code decoder with modified systematic symbol transition probabilities 有权
标题翻译：具有修改的系统符号转换概率的Turbo码解码器
公开(公告)号：US06263467B1
公开(公告)日：2001-07-17
申请号：US09137256
申请日：1998-08-20
申请人： Stephen Michael Hladik , John Anderson Fergus Ross , Nick Andrew Van Stralen
发明人： Stephen Michael Hladik , John Anderson Fergus Ross , Nick Andrew Van Stralen
IPC分类号： H03M1300
CPC分类号： H03M13/3927 , H03M13/2957 , H03M13/6502 , H03M13/658
摘要： A feedback control for a turbo decoder controls the feedback between component decoders of the turbo decoder by substituting either a neutral value or a weighted value for the channel transition probabilities utilized by each component decoder during the iterative decoding process. A control switch selects either estimated channel transition probabilities, modifications of these values, or neutral values as the channel transition probabilities utilized by the next component decoder in the subsequent decoding iteration.
摘要翻译：用于turbo解码器的反馈控制通过在迭代解码过程中将每个分量解码器使用的信道转换概率代入中性值或加权值来控制turbo解码器的组件解码器之间的反馈。控制开关选择估计的信道转换概率，这些值的修改或中性值作为下一个分量解码器在随后的解码迭代中使用的信道转换概率。

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