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1. 发明授权

US4713829A Coded modulation system with a simplified decoder capable of reducing the effects of channel distortion 失效
标题翻译：具有能够减少信道失真影响的简化解码器的编码调制系统
公开(公告)号：US4713829A
公开(公告)日：1987-12-15
申请号：US746538
申请日：1985-06-19
申请人： Vedat M. Eyuboglu
发明人： Vedat M. Eyuboglu
IPC分类号： H03M13/25 , H04L1/00 , H04L25/03 , H04L27/34 , H04L27/00
CPC分类号： H04L1/0052 , H03M13/25 , H04L1/0054 , H04L1/0058 , H04L1/0065 , H04L25/03057 , H04L27/3438
摘要： A receiver for deciding which signal points were sent from a transmitter based on corresponding noise affected signals received via a distorting channel, the noise affected signals carrying information about a particular sequence of encoding states occupied in a succession of time intervals by a finite state process having a finite number of possible encoding states, the receiver including modifying circuitry for generating a plurality of different modified versions of each received signal, and a decoder for deciding which signal points were sent based on estimating a particular sequence of decoder states by storing a number of path histories of previous signal points and using the modified versions to extend the path histories, the different modified versions of each received signal numbering fewer than the number of stored path histories. In other aspects, the constellation of signal points is partitioned into decision subsets, each possible transitions from a possible decoder state are associated with a decision subset, based on the signal points in the path histories, and each of the modified versions is associated with one of the decision subsets; there are fewer modified versions than the number of decoder states; and the decoder states number fewer than the number of decoder states in an optimum trellis decoder.
摘要翻译：一种接收机，用于基于经由失真信道接收到的相应的噪声影响信号来决定哪些信号点从发射机发送，所述噪声影响信号携带有关具有一段时间间隔的特定的编码状态序列的信息，所述有限状态过程具有有限数量的可能的编码状态，所述接收机包括用于产生每个接收到的信号的多个不同修改版本的修改电路，以及解码器，用于基于通过存储多个编码状态来估计解码器状态的特定序列来决定哪些信号点被发送先前信号点的路径历史，并使用修改版本来扩展路径历史，每个接收信号的不同修改版本的编号少于存储的路径历史数。在其他方面，信号点的星座被划分为决策子集，根据路径历史中的信号点，从可能的解码器状态的每个可能的转变与决策子集相关联，并且每个修改版本与一个相关联的决策子集; 比解码器状态数量少的修改版本; 并且解码器的状态数量少于最佳网格解码器中的解码器状态的数量。

2. 发明授权

US5159610A Trellis precoding for modulation systems 失效
标题翻译：网格预编码调制系统
公开(公告)号：US5159610A
公开(公告)日：1992-10-27
申请号：US823586
申请日：1992-01-16
申请人： Vedat M. Eyuboglu , G. David Forney, Jr.
发明人： Vedat M. Eyuboglu , G. David Forney, Jr.
IPC分类号： H04L25/03 , H04L27/34
CPC分类号： H04L27/3422 , H04L25/03044 , H04L25/03343 , H04L2025/03656 , H04L2025/03662 , H04L2025/03808
摘要： In general the invention features mapping a digital data sequence into a signal point sequence for data transmission over a channel characterized by a non-ideal response, by selecting the signal point sequence from a subset of all possible signal point sequences based on the digital data sequence and upon the response, all possible signal point sequences in the subset lying in a fundamental region of a filtered trellis code, the fundamental region being other than a simple Cartesian product of finite-dimensional regions.
摘要翻译：通常，本发明的特征在于，通过基于数字数据序列从所有可能的信号点序列的子集中选择信号点序列，将数字数据序列映射到用于通过非理想响应表征的信道上的数据传输的信号点序列并且在响应时，子集中的所有可能的信号点序列位于滤波格子码的基本区域中，该基本区域不同于有限维度区域的简单笛卡尔乘积。

3. 发明申请

US20060003794A1 Boosting a signal-to-interference ratio of a mobile station 有权
公开(公告)号：US20060003794A1
公开(公告)日：2006-01-05
申请号：US11222475
申请日：2005-09-08
申请人： Sae-Young Chung , Dae-Young Kim , M. Eyuboglu , Gopal Harikumar
发明人： Sae-Young Chung , Dae-Young Kim , M. Eyuboglu , Gopal Harikumar
IPC分类号： H04Q7/20
CPC分类号： H04W52/283 , H04W16/24
摘要： In a cell of a cellular wireless communication system, the SIR of at least one user in a sector of the cell is altered by temporarily reducing transmissions on a forward link in at least one other sector of the cell or a sector in another cell in accordance with a pattern.

4. 发明授权

US5150381A Trellis shaping for modulation systems 失效
标题翻译：调制系统的网格整形
公开(公告)号：US5150381A
公开(公告)日：1992-09-22
申请号：US421610
申请日：1989-10-13
申请人： G. David Forney, Jr. , Vedat M. Eyuboglu
发明人： G. David Forney, Jr. , Vedat M. Eyuboglu
IPC分类号： H04L27/34
CPC分类号： H04L27/3411 , H04L27/3422 , H04L1/0042
摘要： A digital data sequence is mapped into a signal point sequence for transmission, by selecting the signal point sequence from a subset of all possible signal point sequences based on the digital data sequence, all possible signal point sequences in the subset lying in a fundamental region of a trellis code, the fundamental region being other than a simple Cartesian product of finite-dimensional regions. In another aspect, a digital data sequence is mapped into a sequence of signal points for transmission, by specifying a class of possible sequences based on the digital data, and selecting the signal point sequence from the class, the selection being based on the respective average powers of the possible sequences of the class, the selection being based on not only a fixed-length block of the digital data.
摘要翻译：通过从基于数字数据序列的所有可能的信号点序列的子集中选择信号点序列，数字数据序列被映射到用于传输的信号点序列中，子集中的所有可能的信号点序列位于网格码，基本区域不同于有限维区域的简单笛卡尔乘积。在另一方面，通过基于数字数据指定一类可能的序列，并从该类中选择信号点序列，将数字数据序列映射到用于传输的信号点序列中，该选择基于相应的平均值该类的可能序列的功率，该选择不仅基于数字数据的固定长度块。

5. 发明授权

US5040191A Partial response channel signaling systems 失效
标题翻译：部分响应信道信令系统
公开(公告)号：US5040191A
公开(公告)日：1991-08-13
申请号：US550217
申请日：1990-07-10
申请人： G. D. Forney, Jr. , Vedat M. Eyuboglu
发明人： G. D. Forney, Jr. , Vedat M. Eyuboglu
IPC分类号： H04L25/497 , H04L27/34
CPC分类号： H04L27/3438 , H04L25/497
摘要： Apparatus for generating a (running digital sum) sequence of digital signals X.sub.k and/or a (partial response coded) sequence of digital signals Y.sub.k, K=1, 2, . . . , such that Y.sub.k =X.sub.k .+-.X.sub.k-l, L and integer, in which the Y.sub.x signals are a sequence in a given modulation code. In one aspect, the signals Y.sub.k are chosen to be congruent to coset representatives specified in accordance with a modulation code, a plurality of code constellations are used, and at least one constellation includes both a point with a positive sum of coordinates and one with a negative sum of coordinates. In another aspect, the signals X.sub.k are chosen to be congruent to a sequence of alternate (precoded) coset representatives. In other aspects, the Y.sub.k alphabet signals are evenly spaced, and a selectable, e.g., an optimal, tradeoff between S.sub.x and S.sub.y is made. An N-dimentional modulation code is generated as a sequence of one-dimensional signals. A maximum likelihood sequence estimation decoder reconstructs the estimated running digital sum, and generates a signal whenever the estimated running digital sum is outside a permissible range. In another aspect, the decoder includes a modified maximum likelihood sequence estimator adapted to find MQ partial decoded sequences, where Q is the number of encoder states, and M is an integer.
摘要翻译：用于产生数字信号X k和/或数字信号Y k，K = 1,2的（部分响应编码）序列的（运行数字和）序列的装置。。。，使得Yk = Xk +/- Xk-1，L和整数，其中Yx信号是给定调制码中的序列。在一个方面，信号Yk被选择为与根据调制码指定的陪集代表一致，使用多个代码星座，并且至少一个星座包括具有正和坐标坐标的点和一个与负坐标坐标。在另一方面，信号Xk被选择为与替代（预编码）陪集代表的序列一致。在其他方面，Yk字母信号是均匀间隔的，并且可以在Sx和Sy之间进行可选择的，例如最佳的权衡。生成N维调制码作为一维信号的序列。最大似然序列估计解码器重建估计的运行数字和，并且每当估计的运行数字和超出容许范围时产生信号。在另一方面，解码器包括适于查找MQ部分解码序列的修改的最大似然序列估计器，其中Q是编码器状态的数量，M是整数。

6. 发明授权

US4833693A Coded modulation system using interleaving for decision-feedback equalization 失效
标题翻译：使用交错的编码调制系统进行判决反馈均衡
公开(公告)号：US4833693A
公开(公告)日：1989-05-23
申请号：US800529
申请日：1985-11-21
申请人： Vedat M. Eyuboglu
发明人： Vedat M. Eyuboglu
IPC分类号： H04L25/03 , H04L27/34
CPC分类号： H04L27/3427 , H04L25/03057
摘要： In a communication system, the combined advantages of decision feedback equalization and delayed decoding are achieved in a receiver by interleaving the signal points at the transmitter, and deinterleaving them at the receiver so that sufficiently reliable delayed decoder decisions can be used in estimating the distortion component of the received signal presently being processed in the decision feedback circuit.
摘要翻译：在通信系统中，在接收机中通过交织发射机处的信号点来实现判决反馈均衡和延迟解码的组合优点，并且在接收机处对它们进行解交织，从而可以使用足够可靠的延迟解码器判决来估计失真分量在判定反馈电路中正在处理的接收信号。

7. 发明授权

US5297170A Lattice and trellis-coded quantization 失效
标题翻译：格子和网格编码量化
公开(公告)号：US5297170A
公开(公告)日：1994-03-22
申请号：US570413
申请日：1990-08-21
申请人： Vedat M. Eyuboglu , G. David Forney, Jr.
发明人： Vedat M. Eyuboglu , G. David Forney, Jr.
IPC分类号： G06T9/00 , H03M7/30 , H04B14/04
CPC分类号： G06T9/008 , H03M7/3082
摘要： Vectors are quantized by representing the vectors by quantized values using a codebook having granular regions which are based on a coset code, and which lie inside a boundary region which is based on another coset code, the boundary region being other than an N-cube and other than the Voronoi region of a sublattice .LAMBDA..sub.b =M.LAMBDA..sub.g of a lattic .LAMBDA..sub.g upon which the granular regions may have been based.
摘要翻译：通过使用具有基于陪集码的粒状区域的码本，通过量化值表示矢量来量化矢量，并且位于基于另一陪集码的边界区域内，该边界区域不同于N-立方体，除了格子区域可能已经基于的格子（λ）g的子格子（Lambda）b = M（λ）g的Voronoi区域之外。

8. 发明授权

US5048054A Line probing modem 失效
标题翻译：线路探测调制解调器
公开(公告)号：US5048054A
公开(公告)日：1991-09-10
申请号：US351199
申请日：1989-05-12
申请人： Vedat M. Eyuboglu , Ping Dong
发明人： Vedat M. Eyuboglu , Ping Dong
IPC分类号： G01R23/16 , G01R29/26 , H04B3/10 , H04L1/20 , H04L27/00 , H04L27/38 , H04L29/08
CPC分类号： H04L1/206
摘要： A modem for receiving data sent from a remote device over a communication channel by using a single carrier modulated signal, the modem including a receiver for receiving the modulated signal and for receiving a line probing signal sent by the remote device over the channel, the receiver being capable of receiving the modulated signal over any one of a plurality of frequency bands; a line probing processor for measuring characteristics of the channel based upon the received line probing signal; and a selector for selecting one of the plurality of frequency bands, said selection being based upon the measured characteristics of the channel, said selected frequency band to be used for receiving the modulated signal from the remote device.

9. 发明授权

US4745625A Transition detector 失效
标题翻译：过渡检测器
公开(公告)号：US4745625A
公开(公告)日：1988-05-17
申请号：US839706
申请日：1986-03-12
申请人： Vedat M. Eyuboglu
发明人： Vedat M. Eyuboglu
IPC分类号： H04L7/04 , H04L27/01 , H04L27/38 , H04L27/06
CPC分类号： H04L27/38 , H04L27/01 , H04L7/046
摘要： The unknown time when a transition in a signal point sequence has occurred is determined by a trellis technique based on known subsequences of symbols that preceded and followed the transition.
摘要翻译：信号点序列中的转换发生时的未知时间由基于转换之前和之后的符号的已知子序列的网格技术确定。

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