专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06542551B1 Translation table and constellation design for a PCM modem subjected to alternating robbed bit signaling 失效
标题翻译：用于经过交替抢夺位信令的PCM调制解调器的翻译表和星座设计
公开(公告)号：US06542551B1
公开(公告)日：2003-04-01
申请号：US09315475
申请日：1999-05-20
申请人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
IPC分类号： H04B1404
CPC分类号： H04L25/4927 , H04B14/048 , H04J3/125
摘要： The receiver of a PCM modem utilizes the V.90 TRN1d training signal for detecting whether any of the six slots of the received signal may be subject to alternating robbed bit signaling (ARBS), and what the alternating robbed bit signaling pattern may be. This is accomplished by accumulating the received level over a plurality of frames for each slot and by comparing the received levels for each slot to an average level for that slot. If the difference between the received levels and the average levels exceeds a threshold, the slot is determined to be subject to ARBS. Where a slot is subject to ARBS, DIL sequence signals for frames of the alternating robbed bit signaling slot having LSB=0 and LSB=1 are accumulated separately (if available) in order to generate two translation tables (TRT0, TRT1) for that slot. Where the DIL sequence is found only in the frames having the alternating robbed bit signaling slot having LSB=0 or having LSB=1, only one translation table can be generated. Different algorithms are provided for designing a constellation for the alternating robbed bit signaling slot depending on (a) whether two translation tables were generated for the slot, (b) whether the frame-to-TRT correspondence is known, and (c) where only one translation table is generated, whether the translation table generated was TRT0 or TRT1.
摘要翻译： PCM调制解调器的接收机利用V.90 TRN1d训练信号来检测接收信号的六个时隙中的任一个是否可能经历交替的抢占位信令（ARBS），以及交替的抢占位信令模式可能是什么。这是通过在每个时隙的多个帧上累积接收的电平并且通过将每个时隙的接收电平与该时隙的平均电平进行比较来实现的。如果接收电平和平均电平之间的差异超过阈值，则确定该时隙被接受ARBS。在时隙经受ARBS的情况下，具有LSB = 0和LSB = 1的交替抢占位信令时隙的帧的DIL序列信号被分别累积（如果可用），以便为该时隙产生两个转换表（TRT0，TRT1）。在仅具有LSB = 0或具有LSB = 1的交替抢夺位信令时隙的帧中找到DIL序列的情况下，只能生成一个转换表。提供了不同的算法用于设计用于交替抢夺位信令时隙的星座，这取决于（a）是否为时隙生成了两个转换表，（b）帧到TRT对应是否已知，以及（c）生成一个转换表，生成的转换表是否为TRT0或TRT1。

2. 发明授权

US06272171B1 Robbed bit signaling identification in a PCM modem 有权
标题翻译： PCM调制解调器中的Robbed位信令标识
公开(公告)号：US06272171B1
公开(公告)日：2001-08-07
申请号：US09238302
申请日：1999-01-28
申请人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
IPC分类号： H04B138
CPC分类号： H04L25/4927 , H04J3/125
摘要： Methods are provided for determining whether any slots of a modem frame are subject to robbed bit signaling (RBS), and whether the robbed bit signaling is &bgr;-codec robbed bit signaling. From an obtained DIL sequence, an ordered table of level values for each slot is generated. In determining whether any slots are RBS slots, distances between adjacent levels of the table for each slot are obtained and are compared to a “zero distance” threshold value in order to determine the number of distances which exceed the “zero distance” value. For each slot, the number of zero distances are compared to a threshold value, and if the number of zero distances exceeds the threshold value, the slot is declared to be a RBS slot. Zero distance thresholds for each slot are generated by finding a function of a maximum distance for that slot among the adjacent levels. In determining whether any RBS slots are &bgr;-codec slots, distances are found between corresponding levels of the ordered tables. If substantially more than half of the distances from one slot to the others are found to be greater than a zero distance threshold value, the slot is determined to be a &bgr;-codec slot.
摘要翻译：提供了用于确定调制解调器帧的任何时隙是否遭受抢占比特信令（RBS）以及抢占比特信令是否为β-codec抢夺比特信令的方法。从获得的DIL序列中，生成每个时隙的级别值的有序表。在确定任何时隙是否是RBS时隙时，获得每个时隙的表的相邻电平之间的距离，并将其与“零距离”阈值进行比较，以便确定超过“零距离”值的距离数。对于每个时隙，将零距离的数量与阈值进行比较，并且如果零距离的数量超过阈值，则该时隙被声明为RBS时隙。通过找到相邻级别中该时隙的最大距离的函数来生成每个时隙的零距离阈值。在确定任何RBS时隙是否为β编解码器插槽时，在有序表的相应级别之间找到距离。如果发现从一个时隙到另一个时隙的距离的大致一半大于零距离阈值，那么该时隙被确定为β-codec时隙。

3. 发明授权

US06181737B2 Distinguishing received A-law and &mgr;-law signals in a PCM modem 有权
标题翻译：在PCM调制解调器中区分收到的A律和mu律
公开(公告)号：US06181737B2
公开(公告)日：2001-01-30
申请号：US09238319
申请日：1999-01-28
申请人： Yuri Okunev , Vitaly Drucker , Oin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Oin Wang , Yuri Goldstein
IPC分类号： H04B138
CPC分类号： H04J3/125 , H04B14/048 , H04L25/4927
摘要： A method in a modem having a frame having a plurality of slots, for determining whether incoming DIL sequence information contains A-law or &mgr;-law information is provided. From the DIL sequence information, an ordered table of levels for each slot is generated. The levels of all non-robbed-bit slots are averaged, and average levels are subjected to an A-law/&mgr;-law separation function. The separation function F1 ⁡ ( n1 , n2 ) = ∑ i = n1 i = n2 ⁢ { L ⁡ ( i ) - 2 ⋆ [ L ( i - 16 ] } effectively compares values of a first plurality of levels L(i) to twice the values of a second plurality of levels sixteen levels removed from the first plurality of levels. The sum is compared to a threshold, as the sum will be small for A-law values and large for &mgr;-law values.
摘要翻译：一种具有多个时隙的帧的调制解调器中的方法，用于确定传入的DIL序列信息是否包含A律或mu律信息。从DIL序列信息中，生成每个时隙的级别的有序表。所有非抢占位时隙的电平被平均，并且平均电平受到A律/μ律分离功能。分离功能有效地将第一多个级别L（i）的值与从第一多个级别去除的第二多个级别16级的值的两倍进行比较。总和与阈值进行比较，因为A律值的和将很小，对于μ律值很大。

4. 发明授权

US06778597B2 Distinguishing between final coding of received signals in a PCM modem 失效
标题翻译：区分PCM调制解调器中接收信号的最终编码
公开(公告)号：US06778597B2
公开(公告)日：2004-08-17
申请号：US10430178
申请日：2003-05-05
申请人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
IPC分类号： H04B516
CPC分类号： H04L25/4927
摘要： A method for determining the encoding law of an incoming signal in a network which possibly contains an A-&mgr; or &mgr;-A conversion includes obtaining digital impairment learning (DIL) probing data, generating an ordered table of levels therefrom, using the table to find two functions, and using a logical analysis of the functions to determine the encoding law of the signal. A first function is a maximum from the values DL(i) and the threshold Th1 which are less than T(i), with T(i)=a +bi, and DL(i)=L(i+16)−2L(i) with L(i) being the DIL signal corresponding to the transmitted Ucode=i. A second function Q is defined by: Q = 1 2 ⁢ ( ∑ i = i5 i - i6 ⁢ ⁢ DL ⁡ ( i ) + ∑ i = i5 i = i6 ⁢ ⁢ DLm ⁡ ( i ) ) - S m ⁢ Ly 2 2 where DLm(i) is the median value of a windowed group of values for DL(i) where i ranges from i5 to i6, Ly=i6−i5−1, and Sm is a mean of a windowed group of slopes, wherein each slope relates to the difference between certain DLm(i) values.
摘要翻译：一种用于确定可能包含A-mu或μ-A转换的网络中的输入信号的编码规则的方法包括获得数字损伤学习（DIL）探测数据，使用所述表从其中生成有序的级别表，以找到两个功能，并使用函数的逻辑分析来确定信号的编码规律。 T（i）= a + bi，DL（i）= L（i + 16）-2L的第一函数是从值DL（i）和阈值Th1小于T（i）的最大函数（i）L（i）是对应于发送的Ucode = i的DIL信号。第二函数Q由下式定义：其中DLm（i）是DL（i）的窗口化值组的中值，其中i的范围从i5到i6，Ly = i6-i5-1，Sm是窗口组的斜坡，其中每个斜率与某些DLm（i）值之间的差异相关。

5. 发明授权

US06567465B2 DSL modem utilizing low density parity check codes 有权
公开(公告)号：US06567465B2
公开(公告)日：2003-05-20
申请号：US09893383
申请日：2001-06-27
申请人： Yuri Goldstein , Yuri Okunev , Vitaly Drucker
发明人： Yuri Goldstein , Yuri Okunev , Vitaly Drucker
IPC分类号： H04B138
CPC分类号： H04L1/0041 , H03M13/1148 , H04L1/0057 , H04L27/2602
摘要： A DSL modem with a receiver and a transmitter includes an LDPC encoder which utilizes a generation matrix G which is derived from a substantially deterministic H matrix in order to generate redundant parity bits for a block of bits. The H matrix is determined by assigning “ones” of a first column Nj randomly or deterministically. Then, beginning with the second column, assignment of “ones” is carried out deterministically with each “1” in a previous ancestor column generating a “1” in the next descendant column based on the rule that a descendant is placed one position below or above an ancestor. As a result, descending or ascending diagonals are generated. When distributing “ones” in any given column, care is taken to ensure that no rectangles are generated in conjunction with other “ones” in the current column and previous columns. By avoiding generation of rectangles, diagonals are interrupted.

6. 发明授权

US06560277B2 Distinguishing between final coding of received signals in a PCM modem 失效
标题翻译：区分PCM调制解调器中接收信号的最终编码
公开(公告)号：US06560277B2
公开(公告)日：2003-05-06
申请号：US09780200
申请日：2001-02-09
申请人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
IPC分类号： H04B516
CPC分类号： H04L25/4927
摘要： A method for determining the encoding law of an incoming signal in a network which possibly contains an A-&mgr; or &mgr;-A conversion includes obtaining digital impairment learning (DIL) probing data, generating an ordered table of levels therefrom, using the table to find two functions, and using a logical analysis of the functions to determine the encoding law of the signal. A first function is a maximum from the values DL(i) and the threshold Th1 which are less than T(i), with T(i)=a+bi, and DL(i)=L(i+16)−2L(i) with L(i) being the DIL signal corresponding to the transmitted Ucode=i. A second function Q is defined by: Q = 1 2 ⁢ ( ∑ i = i ⁢ ⁢ 5 i = i ⁢ ⁢ 6 ⁢ ⁢ DL ⁡ ( i ) + ∑ i = i ⁢ ⁢ 5 i = i ⁢ ⁢ 6 ⁢ ⁢ DLm ⁡ ( i ) ) - S m ⁢ Ly 2 2 where DLm(i) is the median value of a windowed group of values for DL(i) where i ranges from i5 to i6, Ly=i6−i5−1, and Sm is a mean of a windowed group of slopes, wherein each slope relates to the difference between certain DLm(i) values.
摘要翻译：一种用于确定可能包含A-mu或μ-A转换的网络中的输入信号的编码规则的方法包括获得数字损伤学习（DIL）探测数据，使用所述表从其中生成有序的级别表，以找到两个功能，并使用函数的逻辑分析来确定信号的编码规律。 T（i）= a + bi，DL（i）= L（i + 16）-2L的第一函数是从值DL（i）和阈值Th1小于T（i）的最大函数（i）L（i）是对应于发送的Ucode = i的DIL信号。第二函数Q由下式定义：其中DLm（i）是DL（i）的窗口化值组的中值，其中i从i5到i6，Ly = i6-i5-1，Sm是窗口组的斜坡，其中每个斜率与某些DLm（i）值之间的差异相关。

7. 发明授权

US06243414B1 Method and apparatus for data transmission using discrete multitone technology 有权
标题翻译：使用离散多音频技术进行数据传输的方法和装置
公开(公告)号：US06243414B1
公开(公告)日：2001-06-05
申请号：US09360252
申请日：1999-07-23
申请人： Vitaly Drucker , Yuri Goldstein , William Hanna , Yuri Okunev
发明人： Vitaly Drucker , Yuri Goldstein , William Hanna , Yuri Okunev
IPC分类号： H04B138
CPC分类号： H04L5/006 , H04L1/08 , H04L5/0007 , H04L5/0046 , H04L27/28
摘要： A method of providing a high bit rate DMT signal includes providing information on a plurality of DMT tones, with at least two of the plurality of DMT tones sending information in parallel. Of the tones sending information in parallel, at least one has a SNR too low to be individually used for the number of bits it is transmitting. Accordingly, the tones are coherently “combined” at the receiver in order to generate a SNR sufficient together to carry, at the desired BER, the number of bits being transmitted in parallel. Two or more tones which alone cannot carry a single bit of information may be used together to provide a sufficient SNR at the receiver to transmit one or more bits. Similarly, two or more tones which alone cannot carry two bits of information, may be used together via parallel transmission to provide a sufficient SNR at the receiver. Further, the bit-carrying capacity of a first tone which can carry one or more bits may be increased by transmitting an increased number of bits in parallel with one or more additional tones which cannot carry any bits of information. According to another embodiment of the invention, rather than sending two or more DMT tones in parallel, one or more DMT tones are repeated over a plurality of DMT symbols, and “combined” coherently in order to generate a SNR sufficient together to carry the number of bits being carried by the repeated tone.
摘要翻译：提供高比特率DMT信号的方法包括提供关于多个DMT音调的信息，多个DMT音调中的至少两个并行发送信息。在并行发送信息的音调中，至少有一个信噪比太低，不能单独用于其正在发送的位数。因此，这些音调在接收机处被相干地“组合”，以便产生足够的SNR以在期望的BER处传送并行发送的比特数。单独不能携带单个位信息的两个或更多个音调可以一起使用以在接收机处提供足够的信噪比来发射一个或多个比特。类似地，单独不能承载两比特信息的两个或多个音调可以通过并行传输一起使用，以在接收机处提供足够的信噪比。此外，可以携带一个或多个比特的第一音调的比特承载能力可以通过与不能携带任何信息比特的一个或多个附加音调并行发送增加数量的比特来增加。根据本发明的另一实施例，并非并行发送两个或多个DMT音调，而是在多个DMT符号上重复一个或多个DMT音调，并且相干地“组合”，以便产生足以携带数字的SNR 的比特由重复的音调承载。

8. 发明授权

US06178200B1 Constellation design for a PCM modem 有权
标题翻译： PCM调制解调器的星座设计
公开(公告)号：US06178200B1
公开(公告)日：2001-01-23
申请号：US09238321
申请日：1999-01-28
申请人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
发明人： Yuri Okunev , Vitaly Drucker , Qin Wang , Yuri Goldstein
IPC分类号： H04B138
CPC分类号： H04L25/4927
摘要： Modem constellations are designed by independently optimizing for each slot of a frame, the distances between constellation points used for that slot. A maximum number of points N(0) are chosen having at least the minimum distance d0 without exceeding a power limitation Plim. Using N(0), an attempt is made to increase the d0 in the constellation without exceeding Plim. Constellations may be further optimized by, where possible, decreasing N(0) in a particular constellation without affecting the total data rate of the frame. Thus, a maximum potentially achievable data rate Rmax is calculated given the number of points which are in each of the six constellations, and comparing Rmax to a standards-permitted data rate DR; and then, if Rmax exceeds DR, by decreasing N(0) in one or more constellations, provided the decrease in the number of points does not cause a recalculated Rmax to drop below DR. Further optimization is obtained by attempting to increase d0 in one or more slots by permitting that slot(s) to exceed Plim, provided the average power of the frame is not exceeded. This is accomplished by finding the slot with the maximum error probability, increasing d0 for that slot (while maintaining N(0)) to thereby exceed frame power limitations for that slot, and checking to see whether the changes to the constellation in that slot violates the average frame power limitations. A simple system for checking average constellation power is also provided.
摘要翻译：调制解调器星座是通过对帧的每个时隙独立优化而设计的，即用于该时隙的星座点之间的距离。选择具有至少最小距离d0而不超过功率限制Plim的最大点数N（0）。使用N（0），尝试增加星座中的d0，而不超过Plim。在可能的情况下，可以通过降低特定星座中的N（0）而不影响帧的总数据速率来进一步优化星座。因此，给定在六个星座中的每一个中的点的数量，并且将Rmax与标准允许的数据速率DR进行比较来计算最大可能达到的数据速率Rmax; 然后，如果Rmax超过DR，则通过减少一个或多个星座中的N（0），只要点数的减少不会导致重新计算的Rmax降至低于DR。通过在不超过帧的平均功率的情况下，尝试通过允许该时隙超过Plim来增加一个或多个时隙中的d0来获得进一步优化。这是通过找到具有最大误差概率的时隙来实现的，增加该时隙的d0（同时保持N（0）），从而超过该时隙的帧功率限制，并且检查该时隙中的星座的改变是否违反平均帧功率限制。还提供了一种用于检查平均星座功率的简单系统。

9. 发明授权

US06950461B2 Modems utilizing low density parity check codes 有权
标题翻译：调制解调器利用低密度奇偶校验码
公开(公告)号：US06950461B2
公开(公告)日：2005-09-27
申请号：US09961839
申请日：2001-09-24
申请人： Yuri Goldstein , Yuri Okunev
发明人： Yuri Goldstein , Yuri Okunev
IPC分类号： H04L1/00 , H04L27/26 , H04B1/38 , H04L5/16
CPC分类号： H04L1/0041 , H03M13/1148 , H04L1/0057 , H04L27/2602
摘要： A modem includes an LDPC encoder which utilizes a deterministic H-matrix, optionally via a generation matrix, to generate redundant parity bits for a bit block. Ones are placed into the H-matrix in a completely diagonal manner with diagonals subdivided into sets of diagonals. The first diagonal in each set i begins with coordinates H(1,k), where k=(1+(i*Mj)). The remaining diagonals in the sets are offset from the first diagonals so that the column distances between any two pairs of diagonals is unique. In another embodiment, the H-matrix is determined by assigning “1s” in a first column, and then assigning “1s” of subsequent columns deterministically by causing each “1” in a previous ancestor column to generate a “1” in the next descendant column based on the rule that a descendant is placed one position below an ancestor except where rectangles would be generated. Interrupted descending diagonals are generated.
摘要翻译：调制解调器包括LDPC编码器，其可选地通过生成矩阵来利用确定性H矩阵来产生位块的冗余奇偶校验位。将对象以完全对角线方式放置在H矩阵中，将对角线细分成一组对角线。每组i中的第一个对角线以坐标H（1，k）开始，其中k =（1+（i * M））。组中的剩余对角线与第一对角线偏移，使得任何两对对角线之间的列距离是唯一的。在另一个实施例中，通过在第一列中分配“1”来确定H矩阵，然后通过使先前的祖先列中的每个“1”在下一个子序列中产生“1”来确定地分配后续列的“1” 后代列基于规则，后代被放置在祖先以下的一个位置，除了生成矩形。产生中断下降的对角线。

10. 发明申请

US20050085249A1 Method, apparatus and system for pilotless frequency offset compensation in multipoint-to-point wireless systems with OFDM 审中-公开
标题翻译：用于具有OFDM的多点对点无线系统中的无引导频偏补偿的方法，装置和系统
公开(公告)号：US20050085249A1
公开(公告)日：2005-04-21
申请号：US10685615
申请日：2003-10-16
申请人： Yuri Goldstein , Yuri Okunev
发明人： Yuri Goldstein , Yuri Okunev
IPC分类号： H04B1/00 , H04B7/00 , H04B7/005 , H04B15/00 , H04L27/26
CPC分类号： H04L27/2657 , H04L27/2679
摘要： Apparatus, methods and systems for frequency offset compensation in multipoint-to-point orthogonal frequency division multiplexing (OFDM) systems are provided. In the hub, frequency offset estimates are made in the frequency domain for each group of carriers of the OFDM system. The hub then transmits indications (parameters) of the frequency offset for each group of carriers to the nodes. Frequency offset compensation is then accomplished in each node, preferably in the time domain.
摘要翻译：提供了多点对点正交频分复用（OFDM）系统中用于频偏补偿的装置，方法和系统。在集线器中，在OFDM系统的每个载波组的频域中进行频偏估计。然后，中枢向每个节点发送每组载波的频率偏移的指示（参数）。然后，在每个节点中，优选在时域中实现频偏补偿。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式