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1. 发明授权

US07324035B2 Amplifier with pulse coded output and remote signal reconstruction from the pulse output 有权
标题翻译：具有脉冲编码输出和脉冲输出远程信号重建的放大器
公开(公告)号：US07324035B2
公开(公告)日：2008-01-29
申请号：US10844950
申请日：2004-05-13
申请人： John G. Harris , Du Chen , Dazhi Wei , Jose C. Principe
发明人： John G. Harris , Du Chen , Dazhi Wei , Jose C. Principe
IPC分类号： H03M1/12 , A61B5/0476
CPC分类号： H03F3/185 , H03F3/45183 , H03F3/45475 , H03F2203/45136 , H03F2203/45518 , H03F2203/45524 , H03F2203/45526 , H03F2203/45544 , H03M1/60
摘要： An amplifier-based system having pulsed output includes an amplifier for amplifying a time varying voltage signal to produce an output voltage signal. A voltage-to-current (V-I) converter converts the output voltage signal into a current signal. An output stage including a current integrator integrates the current signal to generate an integrated voltage. An amplitude to time converter generates a pulse train from the integrated voltage, wherein a timing of the pulses in the pulse train represents the original time varying voltage signal. The pulse train representation permits transmission and accurate remote reconstruction of the original time varying voltage signal, such as signals generated by electrodes implanted inside a subject, including neural signals.
摘要翻译：具有脉冲输出的基于放大器的系统包括用于放大时变电压信号以产生输出电压信号的放大器。电压 - 电流（V-I）转换器将输出电压信号转换为电流信号。包括电流积分器的输出级积分电流信号以产生积分电压。振幅到时间转换器从积分电压产生脉冲串，其中脉冲串中的脉冲的定时表示原始时变电压信号。脉冲串表示允许原始时变电压信号的传输和精确的远程重建，例如植入物体内的电极产生的包括神经信号的信号。

2. 发明授权

US08139654B2 Device and methods for biphasic pulse signal coding 有权
标题翻译：双相脉冲信号编码的装置和方法
公开(公告)号：US08139654B2
公开(公告)日：2012-03-20
申请号：US12063099
申请日：2006-08-08
申请人： Du Chen , John G. Harris , Jose C. Principe
发明人： Du Chen , John G. Harris , Jose C. Principe
IPC分类号： H04L27/00
CPC分类号： H03M3/00 , G06N3/049 , H03K7/06 , H03M1/125 , H03M5/02 , H04L25/49
摘要： A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage of the response signal is greater than a predetermined positive voltage threshold. A pulse comprises a negative pulse if the voltage of the response signal is less than a predetermined negative voltage threshold. The method further includes a method for the reconstruction of a uniformly sampled version of the original signal.
摘要翻译：提供了一种基于产生异步双相脉冲串来编码时间信号的方法。该方法包括基于一个或多个输入信号产生响应信号。如果响应信号的电压大于预定的正电压阈值，则脉冲包括正脉冲。如果响应信号的电压小于预定的负电压阈值，则脉冲包括负脉冲。该方法还包括用于重构原始信号的均匀采样版本的方法。

3. 发明申请

US20080192841A1 Device and Methods for Biphasic Pulse Signal Coding 有权
标题翻译：双相脉冲信号编码的装置和方法
公开(公告)号：US20080192841A1
公开(公告)日：2008-08-14
申请号：US12063099
申请日：2006-08-08
申请人： Du Chen , John G. Harris , Jose C. Principe
发明人： Du Chen , John G. Harris , Jose C. Principe
IPC分类号： H04L27/20 , H03K7/06 , H03M1/00 , H03M1/60
CPC分类号： H03M3/00 , G06N3/049 , H03K7/06 , H03M1/125 , H03M5/02 , H04L25/49
摘要： A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage of the response signal is greater than a predetermined positive voltage threshold. A pulse comprises a negative pulse if the voltage of the response signal is less than a predetermined negative voltage threshold. The method further includes a method for the reconstruction of a uniformly sampled version of the original signal.
摘要翻译：提供了一种基于产生异步双相脉冲串来编码时间信号的方法。该方法包括基于一个或多个输入信号产生响应信号。如果响应信号的电压大于预定的正电压阈值，则脉冲包括正脉冲。如果响应信号的电压小于预定的负电压阈值，则脉冲包括负脉冲。该方法还包括用于重构原始信号的均匀采样版本的方法。

4. 发明申请

US20070273411A1 AMPLIFIER WITH PULSE CODED OUTPUT AND REMOTE SIGNAL RECONSTRUCTION FROM THE PULSE OUTPUT 有权
标题翻译：具有脉冲编码输出的放大器和脉冲输出的远程信号重建
公开(公告)号：US20070273411A1
公开(公告)日：2007-11-29
申请号：US10844950
申请日：2004-05-13
申请人： John Harris , Du Chen , Dazhi Wei , Jose Principe
发明人： John Harris , Du Chen , Dazhi Wei , Jose Principe
IPC分类号： H03F3/45
CPC分类号： H03F3/185 , H03F3/45183 , H03F3/45475 , H03F2203/45136 , H03F2203/45518 , H03F2203/45524 , H03F2203/45526 , H03F2203/45544 , H03M1/60
摘要： An amplifier-based system having pulsed output includes an amplifier for amplifying a time varying voltage signal to produce an output voltage signal. A voltage-to-current (V-I) converter converts the output voltage signal into a current signal. An output stage including a current integrator integrates the current signal to generate an integrated voltage. An amplitude to time converter generates a pulse train from the integrated voltage, wherein a timing of the pulses in the pulse train represents the original time varying voltage signal. The pulse train representation permits transmission and accurate remote reconstruction of the original time varying voltage signal, such as signals generated by electrodes implanted inside a subject, including neural signals.
摘要翻译：具有脉冲输出的基于放大器的系统包括用于放大时变电压信号以产生输出电压信号的放大器。电压 - 电流（V-I）转换器将输出电压信号转换为电流信号。包括电流积分器的输出级积分电流信号以产生积分电压。振幅到时间转换器从积分电压产生脉冲串，其中脉冲串中的脉冲的定时表示原始时变电压信号。脉冲串表示允许原始时变电压信号的传输和精确的远程重建，例如植入物体内的电极产生的包括神经信号的信号。

5. 发明授权

US08305140B1 Linear, large swing active resistive circuit and method 有权
标题翻译：线性，大摆幅有源电阻电路及方法
公开(公告)号：US08305140B1
公开(公告)日：2012-11-06
申请号：US13199693
申请日：2011-09-07
申请人： Du Chen , Kemal S. Demirci
发明人： Du Chen , Kemal S. Demirci
IPC分类号： H03F3/68
CPC分类号： H03F3/45475 , H03F3/195 , H03F2200/294 , H03F2203/45511 , H03F2203/45521 , H03F2203/45524 , H03F2203/45528
摘要： Active resistive circuitry (10, 10A, 11, 11A 25, 30, 35, or 40) includes a first current divider circuit (11) having an input (15) coupled to a first signal (Vi). The first current divider circuit (11) includes a first amplifier (13) having a first input (−) coupled to the first signal (Vi). A symmetrically bilateral first bidirectional circuit (M1a,M1b; R1) is coupled between the first input (−) of the first amplifier (13) and an output (17) of the first amplifier (13), and functions as a feedback circuit of the first amplifier (13). A symmetrically bilateral second bidirectional circuit (M2a,M2b; R2) is coupled between the output (17) of the first amplifier (13) and an output (18) of the first current divider circuit (11).
摘要翻译：有源电阻电路（10,10A，11,11A，25,30,35或40）包括具有耦合到第一信号（Vi）的输入（15）的第一分流器电路（11）。第一分频器电路（11）包括具有耦合到第一信号（Vi）的第一输入（ - ）的第一放大器（13）。对称双向第一双向电路（M1a，M1b; R1）耦合在第一放大器（13）的第一输入（ - ）和第一放大器（13）的输出（17）之间，并且用作反馈电路第一放大器（13）。对称双边第二双向电路（M2a，M2b; R2）耦合在第一放大器（13）的输出（17）和第一分流器电路（11）的输出（18）之间。

6. 发明申请

US20050288836A1 Geographic information data base engine 有权
标题翻译：地理信息数据库引擎
公开(公告)号：US20050288836A1
公开(公告)日：2005-12-29
申请号：US11081347
申请日：2005-03-16
申请人： Paul Glass , Vernon Dotson , Du Chen , Susan Kight , Jeffrey Buske
发明人： Paul Glass , Vernon Dotson , Du Chen , Susan Kight , Jeffrey Buske
IPC分类号： G01M17/00 , G09B29/10
CPC分类号： G09B29/106
摘要： A method to compress a very large original geographic database down to a manageable and economical size while preserving accuracy is herein described. Similarly, a method to quickly retrieve, decompress, and display data is herein described. An original geographic database is prepared for compression by dividing it into discrete regions called bounding boxes. The bounding boxes may be variable sized to improve accuracy and compression. Absolute map coordinate data is compressed by converting it to relative map coordinate data. Map files are named in a descriptive manner to allow determination of map file characteristics merely by inspecting the file name. Relative map coordinate data can be displayed without being converted to absolute map coordinate data. Alternately, relative map coordinate data may be quickly decompressed into absolute coordinate data. Retrieving compressed data is facilitated by forming view windows having adjacent load regions pre-decompressed and ready for user display.
摘要翻译：这里描述了一种将非常大的原始地理数据库压缩到可管理和经济尺寸同时保持精度的方法。类似地，这里描述了快速检索，解压缩和显示数据的方法。通过将原始地理数据库划分为称为边界框的离散区域，准备压缩原始地理数据库。边界框可以是可变大小以提高精度和压缩度。通过将绝对地图坐标数据转换为相对地图坐标数据进行压缩。地图文件以描述性方式命名，以便仅通过检查文件名来确定地图文件特征。可以显示相对地图坐标数据，而不转换为绝对地图坐标数据。或者，可以将相对地图坐标数据快速解压缩为绝对坐标数据。通过形成具有预解压缩并准备用于用户显示的相邻负载区域的视窗，便于检索压缩数据。

7. 发明授权

US07430340B2 Geographic information data base engine 有权
标题翻译：地理信息数据库引擎
公开(公告)号：US07430340B2
公开(公告)日：2008-09-30
申请号：US11081347
申请日：2005-03-16
申请人： Paul M. Glass , Vernon C. Dotson , Du Chen , Susan M. Kight , Jeffrey M. Buske
发明人： Paul M. Glass , Vernon C. Dotson , Du Chen , Susan M. Kight , Jeffrey M. Buske
IPC分类号： G06K9/32
CPC分类号： G09B29/106
摘要： A method to compress a very large original geographic database down to a manageable and economical size while preserving accuracy is herein described. Similarly, a method to quickly retrieve, decompress, and display data is herein described. An original geographic database is prepared for compression by dividing it into discrete regions called bounding boxes. The bounding boxes may be variable sized to improve accuracy and compression. Absolute map coordinate data is compressed by converting it to relative map coordinate data. Map files are named in a descriptive manner to allow determination of map file characteristics merely by inspecting the file name. Relative map coordinate data can be displayed without being converted to absolute map coordinate data. Alternately, relative map coordinate data may be quickly decompressed into absolute coordinate data. Retrieving compressed data is facilitated by forming view windows having adjacent load regions pre-decompressed and ready for user display.
摘要翻译：这里描述了一种将非常大的原始地理数据库压缩到可管理和经济尺寸同时保持精度的方法。类似地，这里描述了快速检索，解压缩和显示数据的方法。通过将原始地理数据库划分为称为边界框的离散区域，准备压缩原始地理数据库。边界框可以是可变大小以提高精度和压缩度。通过将绝对地图坐标数据转换为相对地图坐标数据进行压缩。地图文件以描述性方式命名，以便仅通过检查文件名来确定地图文件特征。可以显示相对地图坐标数据，而不转换为绝对地图坐标数据。或者，可以将相对地图坐标数据快速解压缩为绝对坐标数据。通过形成具有预解压缩并准备用于用户显示的相邻负载区域的视窗，便于检索压缩数据。

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