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1. 发明授权

US08457264B2 Radio receiver having a diversity antenna structure 有权
标题翻译：具有分集天线结构的无线电接收机
公开(公告)号：US08457264B2
公开(公告)日：2013-06-04
申请号：US10944509
申请日：2004-09-17
申请人： James Ward Girardeau, Jr. , Paul Morris Astrachan , Mathew A. Rybicki , Bojan Subasic
发明人： James Ward Girardeau, Jr. , Paul Morris Astrachan , Mathew A. Rybicki , Bojan Subasic
IPC分类号： H04B1/10
CPC分类号： H04B7/0857
摘要： A radio receiver includes a first diversity antenna structure, a second diversity antenna structure, a first RF receiver section, a second RF receiver section, a combining module, and a baseband processing module. The first diversity antenna structure provides the received inbound RF signals from one of the plurality of first antennas based on a first antenna selection signal to produce first received inbound RF signals. The second diversity antenna structure provides the received inbound RF signals from one of the plurality of second antennas based on a second antenna selection signal to produce second received inbound RF signals. The first and second RF receiver sections are operably coupled to convert the first and second received inbound RF signals into first and second inbound baseband signals, respectively. The combining module combines the first and second inbound baseband signals to produce inbound baseband signals.
摘要翻译：无线电接收机包括第一分集天线结构，第二分集天线结构，第一RF接收机部分，第二RF接收机部分，组合模块和基带处理模块。第一分集天线结构基于第一天线选择信号提供来自多个第一天线之一的接收入站RF信号，以产生第一接收的入站RF信号。第二分集天线结构基于第二天线选择信号提供来自多个第二天线之一的接收的入站RF信号，以产生第二接收的入站RF信号。第一和第二RF接收机部分可操作地耦合以分别将第一和第二接收入站RF信号转换成第一和第二入站基带信号。组合模块组合第一和第二入站基带信号以产生入站基带信号。

2. 发明授权

US07072632B2 Fast signal detection process 失效
标题翻译：快速信号检测过程
公开(公告)号：US07072632B2
公开(公告)日：2006-07-04
申请号：US10683955
申请日：2003-10-10
申请人： Paul Morris Astrachan , James Ward Girardeau, Jr.
发明人： Paul Morris Astrachan , James Ward Girardeau, Jr.
IPC分类号： H04B17/00
CPC分类号： H04B17/318
摘要： A valid signal may be detected by initializing gain settings of the receiver section. The processing then continues by measuring received signal strength of a signal received by the receiver section to produce a 1st received signal strength indication (RSSI). The processing continues by adjusting the gain setting of the receiver section such that the 1st received signal strength indication is a predetermined offset less than a signal strength threshold. The process then continues by measuring the received signal strength of the gain adjusted representation of the signal to produce a 2nd received signal strength indication. The processing continues by appending a 2nd offset to the 2nd received signal strength value to produce an adjusted received signal strength indication value when the 2nd received signal strength value drifts from the signal strength threshold less the predetermined offset. The processing continues by measuring the received signal strength of received signals and appending the offset until a possible valid signal is detected. When the possible valid signal is detected, the gain of the receiver is adjusted based on its dynamic range.
摘要翻译：可以通过初始化接收器部分的增益设置来检测有效信号。然后通过测量由接收器部分接收的信号的接收信号强度来继续处理以产生接收信号强度指示（RSSI）的处理。通过调整接收机部分的增益设置继续进行处理，使得接收信号强度指示为小于信号强度阈值的预定偏移。然后，该过程通过测量信号的增益调整表示的接收信号强度来继续，以产生接收信号强度指示。该处理继续，通过将2＆lt; nd＆amp;＆gt;偏移补偿附加到第2＆lt; nd＆gt;接收信号强度值，以产生调整的接收信号强度指示值，当第2 nd / >接收信号强度值从信号强度阈值漂移小于预定偏移量。该处理通过测量接收到的信号的接收信号强度并附加偏移直到检测到可能的有效信号而继续。当检测到可能的有效信号时，根据其动态范围调整接收机的增益。

3. 发明授权

US06404810B1 Activation method in data transceivers 失效
标题翻译：数据收发器中的激活方法
公开(公告)号：US06404810B1
公开(公告)日：2002-06-11
申请号：US09290128
申请日：1999-04-12
申请人： James Ward Girardeau, Jr. , Stanley K. Ling
发明人： James Ward Girardeau, Jr. , Stanley K. Ling
IPC分类号： H03H730
CPC分类号： H04L25/03057 , H04L2025/0349 , H04L2025/03617 , H04L2025/03624 , H04L2025/03732
摘要： An activation method for adaptive equalization in a data transceiver including a plurality of adaptive filters wherein the adaptive filters are adapted with a first type of adaptation method to obtain initial convergence of the adaptive filters during an initial activation of the data transceiver and a second type of adaptation method to optimize performance of recovering the received signals in the presence of noise.
摘要翻译：一种用于包括多个自适应滤波器的数据收发机中的自适应均衡的激活方法，其中所述自适应滤波器适应于第一类型的自适应方法，以在所述数据收发器的初始激活期间获得所述自适应滤波器的初始收敛，以及第二类型适应方法，以在存在噪声的情况下优化恢复接收信号的性能。

4. 发明授权

US06341148B1 Method and apparatus for minimizing transient sampling fluctuations upon transition between modes of communication 失效
标题翻译：用于在通信模式之间转换时最小化瞬时采样波动的方法和装置
公开(公告)号：US06341148B1
公开(公告)日：2002-01-22
申请号：US09185889
申请日：1998-11-04
申请人： James Ward Girardeau, Jr.
发明人： James Ward Girardeau, Jr.
IPC分类号： H04L700
CPC分类号： H04L7/0334 , H04L7/0083 , H04L25/03343 , Y10S370/916
摘要： The present invention provides a transceiver which does not lose synchronization upon a transition from a non-precoded communication mode to a precoded communication mode and minimizes phase drift. A transceiver unit outputs a signal representing the phase of a received signal, and that possesses a controllable sampling rate. The transceiver is coupled to a phase reference selector and a timing control system. Upon a transition between communication modes, an adaptation period is initiated. The phase reference selector captures the phase estimate immediately prior to termination of the adaptation period, outputting a predetermined phase reference until such termination, at which point the stored phase estimate is outputted. The timing control system minimizes the difference between the phase estimate and the output of the phase reference selector by altering the sampling rate, except during the adaptation period, during which the sampling rate is held constant.
摘要翻译：本发明提供一种在从非预编码通信模式转换到预编码通信模式并且使相位漂移最小化的同时不失去同步的收发器。收发器单元输出表示接收信号的相位的信号，并具有可控的采样率。收发器耦合到相位参考选择器和定时控制系统。在通信模式之间转换时，启动适应周期。相位参考选择器在紧接着自适应周期结束之前捕获相位估计，输出预定的相位基准直到这样的终止，此时输出存储的相位估计。定时控制系统通过改变采样速率（在适应期间除外）使采样率保持不变，使相位估计和相位参考选择器的输出之间的差异最小化。

5. 发明授权

US07984177B2 Multimedia client/server system with adjustable packet size and methods for use therewith 有权
标题翻译：具有可调分组大小的多媒体客户/服务器系统及其使用方法
公开(公告)号：US07984177B2
公开(公告)日：2011-07-19
申请号：US11799100
申请日：2007-04-30
申请人： James Ward Girardeau, Jr. , SuiWu Dong
发明人： James Ward Girardeau, Jr. , SuiWu Dong
IPC分类号： G06F15/16
CPC分类号： H04L65/60 , H04L1/0007 , H04L1/0016 , H04L1/0017 , H04L1/0026 , H04L1/0033 , H04L65/80 , H04N21/43637 , H04N21/4402 , H04N21/44227 , H04N21/64707 , H04N21/64792 , H04W28/06 , H04W28/22
摘要： A circuit for use in a multimedia server module includes an encoder module that encodes a multimedia signal to produce an encoded signal that includes a sequence of packets having a packet size. An RF server transceiver module, coupled to the encoder module, that produces a channel signal that includes the encoded signal, and that wirelessly transmits the channel signal at a link data rate over a wireless communication path to at least one client module The RF server transceiver module includes a quality of service module that adjusts the packet size based on first RF performance signals determined by the RF transceiver, based on second performance signals received from a client module and/or based on adjustments made to the link data rate.
摘要翻译：用于多媒体服务器模块的电路包括编码器模块，其对多媒体信号进行编码以产生包括具有分组大小的分组序列的编码信号。耦合到编码器模块的RF服务器收发器模块，其产生包括编码信号的信道信号，并且以无线通信路径将链路数据速率无线地传输到至少一个客户端模块。RF服务器收发器模块包括基于从客户端模块接收的第二性能信号和/或基于对链路数据速率进行的调整，基于由RF收发器确定的第一RF性能信号来调整分组大小的服务质量模块。

6. 发明授权

US07421046B2 Method and apparatus for signal decoding in a diversity reception system with maximum ratio combining 失效
标题翻译：用于具有最大比率组合的分集接收系统中的信号解码的方法和装置
公开(公告)号：US07421046B2
公开(公告)日：2008-09-02
申请号：US10376486
申请日：2003-02-28
申请人： Bradley A. Wallace , James Ward Girardeau, Jr. , James Robert Kelton
发明人： Bradley A. Wallace , James Ward Girardeau, Jr. , James Robert Kelton
IPC分类号： H04B7/10 , H04L27/00
CPC分类号： H04B7/0857
摘要： A method signal for decoding in a diversity reception system can include converting the received RF signal into a plurality of digital baseband signals; phase aligning the plurality of digital baseband signals to produce a plurality of phase aligned digital baseband signals; determining a plurality of error terms from the plurality of phase aligned digital baseband signals; one of which corresponding to one of the plurality of phase aligned digital baseband signals; determining a plurality of weighting factors for the plurality of error terms based on characteristics of the plurality of digital baseband signals, one of which corresponding to one of the plurality of error terms; applying the plurality of weighting factors to the plurality of error terms to produce a plurality of weighted error terms; summing the plurality of weighted error terms to produce an error term for decoding.
摘要翻译：用于在分集接收系统中解码的方法信号可以包括将所接收的RF信号转换成多个数字基带信号; 对多个数字基带信号进行相位对准以产生多个相位对准的数字基带信号; 从所述多个相位对准的数字基带信号中确定多个误差项; 其中一个对应于所述多个相位对准的数字基带信号之一; 基于所述多个数字基带信号的特性来确定所述多个误差项的多个加权因子，所述多个数字基带信号中的一个对应于所述多个误差项之一; 将所述多个加权因子应用于所述多个误差项以产生多个加权误差项; 对多个加权误差项求和以产生用于解码的误差项。

7. 发明授权

US06707868B1 Apparatus for recovering timing of a digital signal for a transceiver 失效
标题翻译：用于恢复收发器的数字信号定时的装置
公开(公告)号：US06707868B1
公开(公告)日：2004-03-16
申请号：US09291136
申请日：1999-04-12
申请人： John R. Camagna , James Ward Girardeau, Jr. , Stanley K. Ling , Hiroshi Takatori
发明人： John R. Camagna , James Ward Girardeau, Jr. , Stanley K. Ling , Hiroshi Takatori
IPC分类号： H04L700
CPC分类号： H04L7/0058 , H04L25/0202 , H04L2025/03471
摘要： A digital timing recovery system wherein the rate conversion is independent of the sampling rate, and which may be set in a network mode or a remote mode. The invention includes a transceiver core for processing transmit and receive data at a predetermined baud rate, an analog front end for transmitting and receiving analog signals over a network, a phase detector for generating a phase error estimate and a timing controller for receiving the phase error estimate signal and generating a receive and transmit phase control signal for controlling timing of the analog front end. A selector is provided for selecting a remote mode of operation or a network mode of operation. The analog front end further includes a transmit converter for converting the transmit data at the baud rate to a digital output at a transmit rate and a digital to analog converter for converting the digital output to an analog signal, and an analog to digital converter for converting the analog receive signal to a digital receive signal and a receive converter for converting the digital receive signal at a receive rate to the baud rate. The phase detector includes a channel estimator for generating a coefficient error signal and the timing controller includes a loop filter for producing a control signal for a numerically controlled oscillator that produces a baud interrupt signal and the phase control signals.
摘要翻译：数字定时恢复系统，其中速率转换独立于采样速率，并且其可以被设置在网络模式或远程模式中。本发明包括用于以预定波特率处理发送和接收数据的收发机核心，用于通过网络发送和接收模拟信号的模拟前端，用于产生相位误差估计的相位检测器和用于接收相位误差的定时控制器估计信号并产生用于控制模拟前端的定时的接收和发送相位控制信号。提供选择器用于选择远程操作模式或网络操作模式。模拟前端还包括发送转换器，用于将波特率的发送数据以发送速率转换为数字输出，以及用于将数字输出转换为模拟信号的数模转换器，以及用于转换的模数转换器到数字接收信号的模拟接收信号和用于以接收速率将数字接收信号转换成波特率的接收转换器。相位检测器包括用于产生系数误差信号的信道估计器，并且定时控制器包括用于产生用于产生波特率中断信号和相位控制信号的数控振荡器的控制信号的环路滤波器。

8. 发明授权

US08643777B2 Pixel interpolation with edge detection based on cross-correlation 有权
标题翻译：基于互相关的边缘检测的像素插值
公开(公告)号：US08643777B2
公开(公告)日：2014-02-04
申请号：US12567128
申请日：2009-09-25
申请人： Bradley Arthur Wallace , James Ward Girardeau, Jr.
发明人： Bradley Arthur Wallace , James Ward Girardeau, Jr.
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： H04N7/0142 , G06T3/403
摘要： A pixel interpolation process is based on detection of a potential edge in proximity to a pixel being estimated, and the angle thereof. The potential edge and its angle is determined based on filtering of offset or overlapping sets of lines from a pixel window centered around the pixel being estimated and then cross-correlating the filter results. The highest value in the correlation result values represents a potential edge in proximity to the pixel being estimated and the index of the highest value represents the angle of the potential edge. This information is used in conjunction with other information from the cross-correlation and analysis of the differences between pixels in proximity to verify the validity of the potential edge. If determined to be valid, a diagonal interpolation based on the edge and its angle is used to estimate the pixel value of the pixel. Otherwise, an alternate interpolation process, such as vertical interpolation, is used to estimate the pixel value for the pixel.
摘要翻译：像素内插处理基于对被估计的像素附近的电位边缘的检测及其角度。基于以估计像素为中心的像素窗口的偏移或重叠线组的滤波确定潜在边缘及其角度，然后将滤波器结果互相关。相关结果值中的最高值表示接近被估计像素的电势边缘，最高值的索引表示电位边缘的角度。该信息与来自相邻像素之间的差异的互相关和其他信息结合使用以验证潜在边缘的有效性。如果确定为有效，则使用基于边缘及其角度的对角插值来估计像素的像素值。否则，使用诸如垂直内插的替代插值处理来估计像素的像素值。

9. 发明申请

US20120170667A1 DYNAMIC VIDEO DATA COMPRESSION 有权
标题翻译：动态视频数据压缩
公开(公告)号：US20120170667A1
公开(公告)日：2012-07-05
申请号：US12981708
申请日：2010-12-30
申请人： James Ward Girardeau, Jr. , Rajat Gupta
发明人： James Ward Girardeau, Jr. , Rajat Gupta
IPC分类号： H04N7/26
CPC分类号： H04N7/50 , H04N19/176 , H04N19/40 , H04N19/423 , H04N19/436 , H04N19/44 , H04N19/61 , H04N19/70
摘要： A method includes decompressing first compressed video data to provide uncompressed video data in a first order. The method includes compressing the uncompressed video data to provide second compressed video data in a second order. The decompressing and compressing are based on first and second compression rates, respectively. The first order may be based on fundamental blocks of a frame of video data and the second order is based on lines of the frame of video data. The compressing may include alternating compression of partial portions of a first line of uncompressed video data with compression of partial portions of at least a second line of uncompressed video data to thereby generate a first line of compressed video data corresponding to the first line of uncompressed video data and at least a second line of compressed video data corresponding to the second line of uncompressed video data.
摘要翻译：一种方法包括解压缩第一压缩视频数据以按第一顺序提供未压缩的视频数据。该方法包括压缩未压缩视频数据以提供第二次压缩视频数据。解压缩和压缩分别基于第一和第二压缩率。第一顺序可以基于视频数据帧的基本块，并且第二顺序基于视频数据帧的行。压缩可以包括对未压缩视频数据的第一行的部分部分的交替压缩与至少第二行未压缩视频数据的部分部分的压缩，从而生成对应于第一行未压缩视频的第一行压缩视频数据数据和对应于第二行未压缩视频数据的至少第二行压缩视频数据。

10. 发明授权

US07961759B2 Method and apparatus for synchronized channel transmission 有权
标题翻译：用于同步信道传输的方法和装置
公开(公告)号：US07961759B2
公开(公告)日：2011-06-14
申请号：US10376806
申请日：2003-02-28
申请人： Michael R. May , James Ward Girardeau, Jr. , Paul M. Astrachan , Mathew A. Rybicki
发明人： Michael R. May , James Ward Girardeau, Jr. , Paul M. Astrachan , Mathew A. Rybicki
IPC分类号： H04J3/06
CPC分类号： H04L7/041 , H04L27/2607 , H04L27/2662 , H04L27/2678
摘要： A method and apparatus for synchronized channel transmission are disclosed. One embodiment of the method comprises: generating a first data stream and a second data stream; packetizing the first data stream to produce a first plurality of data packets; packetizing the second data stream to produce a second plurality of data packets; baseband processing the first plurality of data packets to produce a first plurality of symbols for each of the first plurality of data packets; baseband processing the second plurality of data packets to produce a second plurality of symbols for each of the second plurality of data packets; converting the first plurality of symbols into a first radio frequency signal; converting the second plurality of symbols into a second radio frequency signal; and synchronizing at least one of: generating the first and the second data streams, packetizing the first and second data streams, baseband processing the first and second plurality of data packets, and converting the first and second plurality of symbols.
摘要翻译：公开了一种用于同步信道传输的方法和装置。该方法的一个实施例包括：产生第一数据流和第二数据流; 打包第一数据流以产生第一多个数据分组; 打包第二数据流以产生第二多个数据分组; 基带处理所述第一多个数据分组以产生所述第一多个数据分组中的每一个的第一多个符号; 基带处理所述第二多个数据分组以产生所述第二多个数据分组中的每一个的第二多个符号; 将所述第一多个符号转换为第一射频信号; 将所述第二多个符号转换为第二射频信号; 以及同步以下各项中的至少一个：产生所述第一和第二数据流，对所述第一和第二数据流进行分组，对所述第一和第二多个数据分组进行基带处理，以及转换所述第一和第二多个符号。

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