公开(公告)号：US5513214A

公开(公告)日：1996-04-30

申请号：US514356

申请日：1995-07-27

申请人： Francesco Gozzo

发明人： Francesco Gozzo

IPC分类号： H03H21/00 ,  H04L25/03 ,  H03H7/30 ,  H03H7/40

CPC分类号： H04L25/03057 ,  H03H21/0012 ,  H04L2025/03566

摘要： Linear and decision feedback equalizers which are communication receivers used in computer systems having an ISI receiver system and analysis paradigm to provide the ability of estimating the performance of these receivers under mismatched channel conditions. The mean square error (MSE) performance of linear and decision feedback equalizers in the presence of arbitrary channel mismatch is presented. A generic equalizer which has feed-forward and feedback taps which are optimized for a mean square error (MSE) criterion. The ability to rapidly predict MSE performance also leads to the real-time adaptation of the equalizer complexity to improve MSE performance, optimal truncation of channel impulse response based on an MSE criterion, and assessing the impact of assuming white noise in a colored noise environment. With the system and method there is a determination of the spectral characteristics of the communication channel during training and/or decoding. These are either known in advance via models and/or experimentation, or they are estimated and/or measured on-line on a periodic schedule. Once this data is obtained, the MSE estimation paradigm is used to predict the MSE performance of the linear or DFE receiver. Among the areas of application is the area of optical and wireless communication systems, such as mobile cellular systems, satellite systems, and wireless indoor networks. Since the physical channel in wireless systems is susceptible to many variations, the receiver is usually operating with inaccurate channel estimates.

摘要翻译： 线性和决策反馈均衡器，它们是具有ISI接收机系统和分析范例的计算机系统中使用的通信接收机，以提供在不匹配的信道条件下估计这些接收机的性能的能力。 提出了存在任意信道失配的线性和判决反馈均衡器的均方误差（MSE）性能。 具有针对均方误差（MSE）准则优化的前馈和反馈抽头的通用均衡器。 快速预测MSE性能的能力还导致均衡器复杂度的实时调整，以提高MSE性能，基于MSE标准优化截断信道脉冲响应，并评估在彩色噪声环境中假设白噪声的影响。 利用系统和方法，在训练和/或解码期间确定通信信道的频谱特性。 这些都是通过模型和/或实验预先知道的，或者它们是在定期的时间表上在线估计和/或测量的。 一旦得到这个数据，MSE估计范例就用于预测线性或DFE接收机的MSE性能。 其中应用领域包括移动蜂窝系统，卫星系统和无线室内网络等光和无线通信系统。 由于无线系统中的物理信道易受许多变化的影响，因此接收机通常以不准确的信道估计来运行。

公开(公告)号：US5432816A

公开(公告)日：1995-07-11

申请号：US866928

申请日：1992-04-10

申请人： Francesco Gozzo

发明人： Francesco Gozzo

IPC分类号： H04B1/10 ,  H04L25/03 ,  H03H7/30

CPC分类号： H04L25/03076 ,  H04L2025/03662

摘要： An adaptive communications receiver for data-transmission which comprises a channel estimator and sequence estimator. The channel estimator consists of a recursive least squares algorithm which uses a known training signal or past decisions to provide a channel estimate. The sequence estimator consists of a new recursive algorithm which uses the channel estimate to estimate the information sequence transmitted over the channel. The receiver exploits the commonality between the sequence and channel estimator to provide an efficient implementation. The receiver can have varying degrees of non-linearity and is lower in complexity and more robust than linear or decision feedback equalizers in the presence of channel mismatch.

摘要翻译： 一种用于数据传输的自适应通信接收机，包括信道估计器和序列估计器。 信道估计器由使用已知训练信号或过去决策提供信道估计的递归最小二乘法算法组成。 序列估计器由使用信道估计估计通过信道发送的信息序列的新的递归算法组成。 接收机利用序列和信道估计器之间的通用性来提供有效的实现。 接收机可以具有不同程度的非线性，并且在存在信道不匹配的情况下，复杂度更低且比线性或判决反馈均衡器更鲁棒。

公开(公告)号：US07698151B2

公开(公告)日：2010-04-13

申请号：US10335910

申请日：2003-01-03

申请人： Francesco Gozzo ,  Emmett M. Perry, Jr. ,  William W. Walker ,  Michael J. Maselli ,  James N. Sutton, Jr.

发明人： Francesco Gozzo ,  Emmett M. Perry, Jr. ,  William W. Walker ,  Michael J. Maselli ,  James N. Sutton, Jr.

IPC分类号： G06Q10/00

CPC分类号： G06Q10/10 ,  G06Q40/00 ,  H04L69/40

摘要： The disaster recovery techniques, for presentment of a company's bills, statements or the like, provide electronic document presentment in the event of a disaster that impacts the company's print mail delivery operation or other existing mailing system(s). Files containing electronic documents are received, from a system associated with the print mail delivery operation, and the documents are stored in a database. Preferably, the systems use the company's existing data files. The files may be converted to a format compatible with one or more electronic delivery methodologies, if necessary. The disaster recovery systems present notice and/or data from the documents to the company's customers electronically, for example as e-mail (notice or message containing some or all of the document data), as a document attachment to an e-mail, via a web site, and possibly via telephone voice announcement.

摘要翻译： 为了呈现公司的账单，陈述等而提供的灾难恢复技术，在发生灾难时提供影响公司打印邮件传送操作或其他现有邮件系统的电子文档呈现。 从与打印邮件传送操作相关联的系统接收包含电子文档的文件，并将文档存储在数据库中。 系统最好使用公司现有的数据文件。 如果需要，这些文件可以被转换成与一种或多种电子传送方法兼容的格式。 灾难恢复系统以电子形式向公司的客户提供文件的通知和/或数据，例如作为电子邮件（包含部分或全部文档数据的通知或消息）作为电子邮件的文档附件，通过 一个网站，并可能通过电话语音通知。

公开(公告)号：US20090037762A1

公开(公告)日：2009-02-05

申请号：US10335910

申请日：2003-01-03

申请人： Francesco Gozzo ,  Emmett M. Perry,, JR. ,  William W. Walker ,  Michael J. Maselli ,  James N. Sutton,, JR.

发明人： Francesco Gozzo ,  Emmett M. Perry,, JR. ,  William W. Walker ,  Michael J. Maselli ,  James N. Sutton,, JR.

IPC分类号： G06F11/07 ,  G06Q40/00

CPC分类号： G06Q10/10 ,  G06Q40/00 ,  H04L69/40

摘要： The disaster recovery techniques, for presentment of a company's bills, statements or the like, provide electronic document presentment in the event of a disaster that impacts the company's print mail delivery operation or other existing mailing system(s). Files containing electronic documents are received, from a system associated with the print mail delivery operation, and the documents are stored in a database. Preferably, the systems use the company's existing data files. The files may be converted to a format compatible with one or more electronic delivery methodologies, if necessary. The disaster recovery systems present notice and/or data from the documents to the company's customers electronically, for example as e-mail (notice or message containing some or all of the document data), as a document attachment to an e-mail, via a web site, and possibly via telephone voice announcement.

摘要翻译： 为了呈现公司的账单，陈述等而提供的灾难恢复技术，在发生灾难时提供影响公司打印邮件传送操作或其他现有邮件系统的电子文档呈现。 从与打印邮件传送操作相关联的系统接收包含电子文档的文件，并将文档存储在数据库中。 系统最好使用公司现有的数据文件。 如果需要，这些文件可以被转换成与一种或多种电子传送方法兼容的格式。 灾难恢复系统以电子形式向公司的客户提供文件的通知和/或数据，例如作为电子邮件（包含部分或全部文档数据的通知或消息）作为电子邮件的文档附件，通过 一个网站，并可能通过电话语音通知。

公开(公告)号：US06269171B1

公开(公告)日：2001-07-31

申请号：US08421597

申请日：1995-04-12

申请人： Francesco Gozzo ,  Joseph T. Higgins

发明人： Francesco Gozzo ,  Joseph T. Higgins

IPC分类号： G06K900

CPC分类号： G06K9/723 ,  G06K2209/01

摘要： A method for exploiting correlated mail streams using optical character recognition is provided in which a static database is used to store data based on training. Real-time data for the parameters of interest, such as address block location, zip code, city, state, and font size or type is collected from the mail processing equipment in order to generate a statistical information database. The dynamic database can include probability density functions, correlations statistics, mean, variance, and high order moments. The statistical parameters are tracked using recursive least squares schemes with various windowing options, as will as moving average linear filters. Based on cost models which indicate the cost of making various types of errors in the OCR process, a decision threshold is determined which is based on the real-time statistics of the mail stream. The decision threshold determines the confidence level required by the adaptive process in order to assign a previously rejected mail pieces based solely on correlation statistics. The decisions threshold will adapt to the statistics of the mail stream and is not a constant value. Previously unassigned characters are assigned according to the decision threshold determination and assignment processes.

摘要翻译： 提供了使用光学字符识别来利用相关邮件流的方法，其中使用静态数据库来存储基于训练的数据。 从邮件处理设备收集用于诸如地址块位置，邮政编码，城市，州和字体大小或类型的感兴趣参数的实时数据，以生成统计信息数据库。 动态数据库可以包括概率密度函数，相关统计，均值，方差和高阶矩。 使用具有各种窗口选项的递归最小二乘法跟踪移动平均线性滤波器的统计参数。 基于指示在OCR过程中产生各种类型的错误的成本的成本模型，确定基于邮件流的实时统计的决策阈值。 决策阈值确定自适应过程所需的置信水平，以便仅基于相关统计分配先前拒绝的邮件。 决策阈值将适应邮件流的统计，不是一个常数值。 根据决策阈值确定和分配过程分配先前未分配的字符。