公开(公告)号：US20070223563A1

公开(公告)日：2007-09-27

申请号：US11754866

申请日：2007-05-29

申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

IPC分类号： H04B1/00

CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

公开(公告)号：US07224726B2

公开(公告)日：2007-05-29

申请号：US10109496

申请日：2002-03-28

申请人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

发明人： Randall Perlow ,  Charles Brooks ,  Steven Jaffe ,  Tianmin Liu

IPC分类号： H04H7/40

CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L2025/03503

摘要： An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.

摘要翻译： 公开了用于最佳地接收和处理信号的自适应接收机。 接收机利用一个或多个存储器块来存储输入符号组。 符号组由信道估计子系统处理以确定信道特性。 接收机根据确定的信道特性确定适当的解调和解码策略来实现。 接收机包括多个解调和解码方案，其中之一是基于信道估计分析的结果来选择的。

公开(公告)号：US20050249307A1

公开(公告)日：2005-11-10

申请号：US10952171

申请日：2004-09-29

申请人： Tommy Yu ,  Steve Krafft ,  Steven Jaffe ,  Alan Kwentus

发明人： Tommy Yu ,  Steve Krafft ,  Steven Jaffe ,  Alan Kwentus

IPC分类号： H03D3/00 ,  H03D7/16 ,  H04L27/00 ,  H04L27/10 ,  H04L27/233

CPC分类号： H04L27/2334 ,  H03D3/004 ,  H03D3/007 ,  H03D7/165

摘要： An integrated burst FSK receiver is provided to receive and interpret an RF signal using FSK modulation. The integrated burst FSK receiver uses a programmable RF local oscillator to mix a received signal down to an IF range or baseband, where it is filtered and sampled for subsequent digital processing. Digital filtering and detection are employed to improve overall bit error rate performance and receiver sensitivity. A programmable digital low-pass or band-pass filter can also be used to suppress interference. A matched filter correlator can be used for detection and symbol timing adjustment in one mode, while an adaptive frequency comparator can be used in another mode. Circuits are provided that estimate carrier offset, frequency deviation and signal strength. These measurements can then be used to optimize the receiver performance. A method for receiving and interpreting an RF signal using FSK modulation is also provided.

摘要翻译： 提供集成突发FSK接收机，以使用FSK调制来接收和解释RF信号。 集成突发FSK接收机使用可编程RF本地振荡器将接收到的信号混合到IF范围或基带，在其中对其进行滤波和采样以用于随后的数字处理。 采用数字滤波和检测来提高总体误码率性能和接收机灵敏度。 也可以使用可编程数字低通滤波器或带通滤波器来抑制干扰。 匹配滤波器相关器可用于一种模式下的检测和符号定时调整，而自适应频率比较器可用于另一种模式。 提供了估计载波偏移，频率偏差和信号强度的电路。 然后可以使用这些测量来优化接收机性能。 还提供了一种使用FSK调制来接收和解释RF信号的方法。

公开(公告)号：US20050204968A1

公开(公告)日：2005-09-22

申请号：US11029789

申请日：2005-01-05

申请人： Patricia Butkus ,  Steven Jaffe

发明人： Patricia Butkus ,  Steven Jaffe

IPC分类号： A47B3/12 ,  A47B13/00

CPC分类号： A47B3/12

摘要： An easily transportable collapsible table in which a box with a support structure inside converts to a table top with the support structure as its base. The box provides substantial structural integrity for the table top and it is easily assembled on site. The collapsible table can be disassembled, restored in the box and reused, or disposed of after a single use.

摘要翻译： 一种易于运输的可折叠桌子，其中具有支撑结构的箱体转换为具有支撑结构作为其底座的桌面。 该箱子为桌面提供了实质的结构完整性，并且可以在现场轻松组装。 可折叠的桌子可以拆卸，在箱子中恢复并重新使用，或在一次使用后丢弃。

公开(公告)号：US20050060760A1

公开(公告)日：2005-03-17

申请号：US10976277

申请日：2004-10-28

申请人： Steven Jaffe ,  Kelly Cameron

发明人： Steven Jaffe ,  Kelly Cameron

IPC分类号： H04L1/00 ,  H04N7/16 ,  H04N7/173

CPC分类号： H04L1/0057 ,  H03M13/1515 ,  H03M13/2966 ,  H04B7/18589 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0083 ,  H04L25/0226 ,  H04L27/0014 ,  H04L2027/0028 ,  H04L2027/0034 ,  H04L2027/0036

摘要： A communications system, having a combination Reed-Solomon encoder and a Turbo-Code encoder Data frame configuration which may be changed to accommodate embedded submarkers of known value. The submarkers are embedded in with the data order to aid synchronization in the receiver system, by providing strings of known symbols. The string of known symbols may be the same as the symbols within a training header that appears at the beginning of a data frame. Frame parameters may be tailored to individual users and may be controlled by information pertaining to receivers, such as bit error rate of the receiver. Additional headers may be interspersed within the data in order to assist in receiver synchronization. Frames of data may be acquired quickly by a receiver by having a string of symbols representing the phase offset between successive header symbols in the header training sequence in order to determine the carrier offset. Phase lock to a signal may be achieved after determining carrier offset in receivers by correlating successive symbols in successive headers.

摘要翻译： 具有Reed-Solomon编码器和Turbo-Code编码器数据帧配置的通信系统，其可以被改变以适应已知值的嵌入式子标记。 通过提供已知符号的字符串，子标记用数据顺序嵌入以辅助接收机系统中的同步。 已知符号串可以与出现在数据帧开始处的训练头中的符号相同。 帧参数可以针对各个用户定制，并且可以由与接收机有关的信息来控制，例如接收机的比特错误率。 额外的头可以散布在数据内，以帮助接收机同步。 为了确定载波偏移，可以由接收机通过在标题训练序列中的连续首标符号之间具有表示相位偏移的符号串来快速获取数据帧。 在确定接收机中的载波偏移之后可以通过将连续的标题中的连续符号相关来来实现对信号的相位锁定。

公开(公告)号：US20140002284A1

公开(公告)日：2014-01-02

申请号：US13553017

申请日：2012-07-19

申请人： Loke TAN ,  Steven Jaffe ,  Hong Liu ,  Lin He ,  Randall Perlow ,  Peter Cangiane ,  Ramon Gomez ,  Giuseppe Cusmai

发明人： Loke TAN ,  Steven Jaffe ,  Hong Liu ,  Lin He ,  Randall Perlow ,  Peter Cangiane ,  Ramon Gomez ,  Giuseppe Cusmai

IPC分类号： H03M1/06

CPC分类号： H03M1/1052 ,  H03M1/1215

摘要： Various multi-lane ADCs are disclosed that substantially compensate for impairments present within various signals that result from various impairments, such as phase offset, amplitude offset, and/or DC offset to provide some examples, such that their respective digital output samples accurately represent their respective analog inputs. Generally, the various multi-lane ADCs determine various statistical relationships, such as various correlations to provide an example, between these various signals and various known calibration signals to quantify the phase offset, amplitude offset, and/or DC offset that may be present within the various signals. The various multi-lane ADCs adjust the various signals to substantially compensate for the phase offset, amplitude offset, and/or DC offset based upon these various statistical relationships such that their respective digital output samples accurately represent their respective analog inputs.

摘要翻译： 公开了各种多通道ADC，其基本上补偿由各种损伤产生的各种信号中存在的损伤，例如相位偏移，幅度偏移和/或DC偏移，以提供一些示例，使得它们各自的数字输出样本准确地表示它们 各自的模拟输入。 通常，各种多通道ADC确定各种统计关系，例如各种相关性，以提供这些各种信号之间的示例，以及各种已知的校准信号，以量化可能存在的相位偏移，幅度偏移和/或DC偏移 各种信号。 各种多通道ADC基于这些各种统计关系调整各种信号以基本上补偿相位偏移，幅度偏移和/或DC偏移，使得它们各自的数字输出样本精确地表示它们各自的模拟输入。

公开(公告)号：US08483122B2

公开(公告)日：2013-07-09

申请号：US12409461

申请日：2009-03-23

申请人： Mark Dale ,  Hebsgaard Anders ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

发明人： Mark Dale ,  Hebsgaard Anders ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

IPC分类号： H04B7/212

CPC分类号： H04L47/29 ,  H04B7/18582 ,  H04L12/2801 ,  H04L47/10 ,  H04L47/263 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/4382 ,  H04N21/44209 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/6377 ,  H04N2007/17381

摘要： In a DOCSIS based satellite gateway data is transmitted over a single downstream channel, at different throughput rates. Data destined for each subscriber/receiver is assigned a throughput rate depending upon the downstream signal quality of that subscriber/receiver. To accomplish this, the downstream DOCSIS MAC data is parsed to extract DOCSIS packets. The DOCSIS packets are then loaded into packet queues based on an identifier within such packets such as the MAC destination address or SID. Each of the queues represents a bandwidth efficiency or throughput rate that can be currently tolerated by specific subscribers based on the current signal quality being experienced at the subscriber location. A PHY-MAP describing the downstream data structure to be transmitted and inserted into the downstream data. Data is extracted from the packet queues in queue blocks as defined by the PHY-MAP. The queue blocks are modulated with transmission parameters appropriate for each queue block and transmitted to the DOCSIS based satellite modems. The satellite modems extract the PHY-MAP from the downstream data and use the information contained in it to demodulate and decode the queue for which they have sufficient downstream signal quality. Satellite modems measure and transmit downstream signal quality to the satellite gateway to be used to assigned traffic to the appropriate queues.

公开(公告)号：US20120314812A1

公开(公告)日：2012-12-13

申请号：US13591389

申请日：2012-08-22

申请人： Steven Jaffe ,  Stephen Edward Krafft

发明人： Steven Jaffe ,  Stephen Edward Krafft

IPC分类号： H04L27/00

CPC分类号： H04L1/0072 ,  H04L1/0041 ,  H04L2001/0097

摘要： Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.

公开(公告)号：US20120275508A1

公开(公告)日：2012-11-01

申请号：US13273911

申请日：2011-10-14

申请人： Thuji Simon Lin ,  Steven Jaffe ,  Robindra Joshi

发明人： Thuji Simon Lin ,  Steven Jaffe ,  Robindra Joshi

IPC分类号： H04L27/00

CPC分类号： H04L27/34 ,  H04L1/0003 ,  H04L25/03178 ,  H04L25/03184

摘要： A device of dynamic communication of information allows, on the average, non-integer bits per symbol transmission, using a compact code set or a partial response decoding receiver. A stream of selectable predetermined integer bits, e.g., k or k+1 data bits, is grouped into a selectable integer number of bit vectors which then are mapped onto corresponding signal constellations forming transmission symbols. Two or more symbols can be grouped and further encoded, so that a symbol is spread across the two or more symbols being communicated. Sequence estimation using, for example, maximum likelihood techniques, as informed by noise estimates relative to the received signal. Each branch metric in computing the path metric of a considered sequence at the receiver is weighted by the inverse of the noise power. It is desirable that the constellation selection, sequence estimation and noise estimation be performed continuously and dynamically.

摘要翻译： 使用紧凑代码集或部分响应解码接收器的信息的动态通信装置平均允许每个符号传输的非整数比特。 可选择的预定整数比特流（例如k或k + 1个数据比特）被分组成可选择的整数个比特向量，然后将其映射到形成发送符号的相应的信号星座上。 可以对两个或更多个符号进行分组和进一步编码，使得符号分布在所传送的两个或更多个符号之间。 使用例如最大似然技术的序列估计，通过相对于接收信号的噪声估计来通知。 在接收机处计算所考虑的序列的路径度量的每个分支度量被噪声功率的倒数加权。 期望连续动态地执行星座选择，序列估计和噪声估计。

公开(公告)号：US08040941B2

公开(公告)日：2011-10-18

申请号：US11835223

申请日：2007-08-07

申请人： Thuji Simon Lin ,  Steven Jaffe ,  Robindra Joshi

发明人： Thuji Simon Lin ,  Steven Jaffe ,  Robindra Joshi

IPC分类号： H04B3/46

CPC分类号： H04L27/34 ,  H04L1/0003 ,  H04L25/03178 ,  H04L25/03184

摘要： A device of dynamic communication of information allows, on the average, non-integer bits per symbol transmission, using a compact code set or a partial response decoding receiver. A stream of selectable predetermined integer bits, e.g., k or k+1 data bits, is grouped into a selectable integer number of bit vectors which then are mapped onto corresponding signal constellations forming transmission symbols. Two or more symbols can be grouped and further encoded, so that a symbol is spread across the two or more symbols being communicated. Sequence estimation using, for example, maximum likelihood techniques, as informed by noise estimates relative to the received signal. Each branch metric in computing the path metric of a considered sequence at the receiver is weighted by the inverse of the noise power. It is desirable that the constellation selection, sequence estimation and noise estimation be performed continuously and dynamically.

摘要翻译： 使用紧凑代码集或部分响应解码接收器的信息的动态通信装置平均允许每个符号传输的非整数比特。 可选择的预定整数比特流（例如k或k + 1个数据比特）被分组成可选择的整数个比特向量，然后将其映射到形成发送符号的相应的信号星座上。 可以对两个或更多个符号进行分组和进一步编码，使得符号分布在所传送的两个或更多个符号之间。 使用例如最大似然技术的序列估计，通过相对于接收信号的噪声估计来通知。 在接收机处计算所考虑的序列的路径度量的每个分支度量被噪声功率的倒数加权。 期望连续动态地执行星座选择，序列估计和噪声估计。