公开(公告)号：US07626527B1

公开(公告)日：2009-12-01

申请号：US12169763

申请日：2008-07-09

申请人： Dejun Wang ,  Hassan Elwan

发明人： Dejun Wang ,  Hassan Elwan

IPC分类号： H03M3/00

CPC分类号： H03M3/366 ,  H03M3/424

摘要： A continuous time sigma-delta analog-to-digital converter (CT ΣΔADC) including an integrator, which includes an operational amplifier having at least one input terminal that receives an input signal, a feedback mechanism operatively connected to the operational amplifier, at least one capacitor coupled to the operational amplifier and the feedback mechanism, a reset switch coupled to the at least one capacitor, the operational amplifier, and the feedback mechanism, and a single directional voltage-to-current converter coupled to the input terminal. The single directional voltage-to-current converter translates a differential signal voltage only to a differential signal current. The reset switch resets the feedback mechanism. The single directional voltage-to-current converter behaves a one-directional resistor. The integrator prevents current generation when there is a non-linear disturbance at the input terminal of the operational amplifier. The single directional voltage-to-current converter clips an input current that exceeds a threshold value.

摘要翻译： 包括积分器的连续时间Σ-Δ模数转换器（CT SigmaDeltaADC），其包括具有接收输入信号的至少一个输入端的运算放大器，可操作地连接到运算放大器的反馈机构，至少一个 耦合到运算放大器和反馈机构的电容器，耦合到至少一个电容器，运算放大器和反馈机构的复位开关，以及耦合到输入端子的单向电压 - 电流转换器。 单向电压 - 电流转换器将差分信号电压转换为差分信号电流。 复位开关复位反馈机制。 单向电压 - 电流转换器采用单向电阻器。 当在运算放大器的输入端处存在非线性干扰时，积分器防止电流产生。 单向电压 - 电流转换器将超过阈值的输入电流钳位。

公开(公告)号：US07592870B2

公开(公告)日：2009-09-22

申请号：US11837638

申请日：2007-08-13

申请人： Dejun Wang ,  Hassan Elwan

发明人： Dejun Wang ,  Hassan Elwan

IPC分类号： H03F3/45

CPC分类号： H03F1/3211 ,  H03F1/26 ,  H03F3/45 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45659 ,  H03F2200/261 ,  H03F2203/45082 ,  H03F2203/45091 ,  H03F2203/45138 ,  H03F2203/45366 ,  H03F2203/45526

摘要： A low noise, low power differential two-stage amplifier includes a first stage comprising a pair of electrical devices that sense an input signal difference across the pair of electrical devices; and a control feedback loop operatively connected to the first stage, wherein the first stage in combination with the control loop feedback is adapted to place an exact copy of the signal across a first pair of resistive components, wherein the first pair of resistive components are adapted to generate a differential signal current, wherein the control feedback loop is adapted to ensure that the differential signal current goes a second pair of resistive components to generate a voltage output. Preferably, the first and second pair of resistive components are in ratio to produce the exact copy of the signal with some gain at an output of the first stage.

摘要翻译： 低噪声，低功率差分两级放大器包括：第一级，包括一对感测一对电气装置上的输入信号差的电气装置; 以及可操作地连接到第一级的控制反馈回路，其中结合控制回路反馈的第一级适于将信号的精确副本放置在第一对电阻部件上，其中第一对电阻部件被适配 以产生差分信号电流，其中所述控制反馈环路适于确保所述差分信号电流进入第二对电阻分量以产生电压输出。 优选地，第一和第二对电阻分量的比率以在第一级的输出处产生具有一些增益的信号的精确副本。

公开(公告)号：US20090045876A1

公开(公告)日：2009-02-19

申请号：US11837638

申请日：2007-08-13

申请人： Dejun Wang ,  Hassan Elwan

发明人： Dejun Wang ,  Hassan Elwan

IPC分类号： H03F3/45

CPC分类号： H03F1/3211 ,  H03F1/26 ,  H03F3/45 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45659 ,  H03F2200/261 ,  H03F2203/45082 ,  H03F2203/45091 ,  H03F2203/45138 ,  H03F2203/45366 ,  H03F2203/45526

摘要： A low noise, low power differential two-stage amplifier includes a first stage comprising a pair of electrical devices that sense an input signal difference across the pair of electrical devices; and a control feedback loop operatively connected to the first stage, wherein the first stage in combination with the control loop feedback is adapted to place an exact copy of the signal across a first pair of resistive components, wherein the first pair of resistive components are adapted to generate a differential signal current, wherein the control feedback loop is adapted to ensure that the differential signal current goes a second pair of resistive components to generate a voltage output. Preferably, the first and second pair of resistive components are in ratio to produce the exact copy of the signal with some gain at an output of the first stage.

摘要翻译： 低噪声，低功率差分两级放大器包括：第一级，包括一对感测一对电气装置上的输入信号差的电气装置; 以及可操作地连接到第一级的控制反馈回路，其中结合控制回路反馈的第一级适合于将信号的精确副本放置在第一对电阻部件上，其中第一对电阻部件被适配 以产生差分信号电流，其中所述控制反馈环路适于确保所述差分信号电流进入第二对电阻分量以产生电压输出。 优选地，第一和第二对电阻分量的比率以在第一级的输出处产生具有一些增益的信号的精确副本。

公开(公告)号：US07592863B2

公开(公告)日：2009-09-22

申请号：US11755125

申请日：2007-05-30

申请人： Hassan Elwan ,  Amr Fahim ,  Edward Youssounan ,  Ahmed A. Emira ,  Dejun Wang

发明人： Hassan Elwan ,  Amr Fahim ,  Edward Youssounan ,  Ahmed A. Emira ,  Dejun Wang

IPC分类号： H03K5/00

CPC分类号： H03H11/10 ,  H03H11/1291 ,  H03H11/525

摘要： A noise shaping and voltage gain filtering third order electrical circuit and method comprises at least one pair of input resistors; a Frequency Dependent Negative Resistance (FDNR) filter positioned in between the at least one pair of input resistors; a feedback resistor; and an amplifier operatively connected to the feedback resistor and the at least one pair of input resistors, wherein as an electrical signal is introduced to the electrical circuit, the FDNR filter is adapted to filter signal blockers out of the electrical signal prior to the electrical signal reaching the amplifier for signal amplification, wherein the FDNR filter does not contribute noise to a signal-to-noise ratio (SNR) of the electrical signal, and wherein a transfer function of the FDNR filter is substantially elliptical in shape.

摘要翻译： 噪声整形和电压增益滤波三阶电路和方法包括至少一对输入电阻器; 位于所述至少一对输入电阻器之间的频率相关负电阻（FDNR）滤波器; 反馈电阻; 以及可操作地连接到所述反馈电阻器和所述至少一对输入电阻器的放大器，其中当电信号被引入所述电路时，所述FDNR滤波器适于在所述电信号之前将所述电信号中的信号阻挡器滤波 到达用于信号放大的放大器，其中FDNR滤波器不对电信号的信噪比（SNR）贡献噪声，并且其中FDNR滤波器的传递函数的形状基本上是椭圆形的。

公开(公告)号：US20070228139A1

公开(公告)日：2007-10-04

申请号：US11564963

申请日：2006-11-30

申请人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

发明人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

IPC分类号： G06F12/00

CPC分类号： H04N5/64

摘要： A portable memory device dimensioned and configured as any of a removable flash memory card, a USB flash drive, and a jump drive and a method of wireless communication, wherein the portable memory device comprises a single housing component; a data storage component within the single housing component; and a wireless receiver operatively connected to the data storage component and within the single housing component, wherein the wireless receiver is adapted to receive wireless signals comprising radio signals, satellite signals, TV signals, and Bluetooth™ specification signals, and wherein the wireless receiver is adapted to wirelessly communicate with a LAN. The portable memory device may further comprise an interface component adapted to connect to a host computing device. Preferably, the TV signals comprise mobile TV signals.

摘要翻译： 一种便携式存储设备，其尺寸和配置为任何可拆卸的闪存卡，USB闪存驱动器和跳转驱动器以及无线通信的方法，其中所述便携式存储设备包括单个外壳部件; 单个外壳部件内的数据存储部件; 以及无线接收器，其可操作地连接到所述数据存储部件并且在所述单个外壳部件内，其中所述无线接收器适于接收包括无线电信号，卫星信号，TV信号和Bluetooth TM规范信号的无线信号，并且其中所述无线 接收机适于与LAN无线通信。 便携式存储设备还可以包括适于连接到主计算设备的接口组件。 优选地，TV信号包括移动TV信号。

公开(公告)号：US08504107B2

公开(公告)日：2013-08-06

申请号：US13541121

申请日：2012-07-03

申请人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

发明人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

IPC分类号： H04M1/00 ,  H04N7/16

CPC分类号： H04N5/64

摘要： A portable memory device dimensioned and configured as any of a removable flash memory card, a USB flash drive, and a jump drive and a method of wireless communication, wherein the portable memory device comprises a single housing component; a data storage component within the single housing component; and a wireless receiver operatively connected to the data storage component and within the single housing component, wherein the wireless receiver is adapted to receive wireless signals comprising radio signals, satellite signals, TV signals, and Bluetooth™ specification signals, and wherein the wireless receiver is adapted to wirelessly communicate with a LAN. The portable memory device may further comprise an interface component adapted to connect to a host computing device. Preferably, the TV signals comprise mobile TV signals.

摘要翻译： 一种便携式存储设备，其尺寸和配置为任何可拆卸的闪存卡，USB闪存驱动器和跳转驱动器以及无线通信的方法，其中所述便携式存储设备包括单个外壳部件; 单个外壳部件内的数据存储部件; 以及无线接收器，其可操作地连接到所述数据存储部件并且在所述单个外壳部件内，其中所述无线接收器适于接收包括无线电信号，卫星信号，TV信号和Bluetooth TM规范信号的无线信号，并且其中所述无线 接收机适于与LAN无线通信。 便携式存储设备还可以包括适于连接到主计算设备的接口组件。 优选地，TV信号包括移动TV信号。

公开(公告)号：US20120270603A1

公开(公告)日：2012-10-25

申请号：US13541121

申请日：2012-07-03

申请人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

发明人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

IPC分类号： H04W88/00

CPC分类号： H04N5/64

摘要： A portable memory device dimensioned and configured as any of a removable flash memory card, a USB flash drive, and a jump drive and a method of wireless communication, wherein the portable memory device comprises a single housing component; a data storage component within the single housing component; and a wireless receiver operatively connected to the data storage component and within the single housing component, wherein the wireless receiver is adapted to receive wireless signals comprising radio signals, satellite signals, TV signals, and Bluetooth™ specification signals, and wherein the wireless receiver is adapted to wirelessly communicate with a LAN. The portable memory device may further comprise an interface component adapted to connect to a host computing device. Preferably, the TV signals comprise mobile TV signals.

摘要翻译： 一种便携式存储设备，其尺寸和配置为任何可拆卸的闪存卡，USB闪存驱动器和跳转驱动器以及无线通信的方法，其中所述便携式存储设备包括单个外壳部件; 单个外壳部件内的数据存储部件; 以及无线接收器，其可操作地连接到所述数据存储部件并且在所述单个外壳部件内，其中所述无线接收器适于接收包括无线电信号，卫星信号，TV信号和Bluetooth TM规范信号的无线信号，并且其中所述无线接收器 适于与LAN无线通信。 便携式存储设备还可以包括适于连接到主计算设备的接口组件。 优选地，TV信号包括移动TV信号。

公开(公告)号：US08238972B2

公开(公告)日：2012-08-07

申请号：US11564963

申请日：2006-11-30

申请人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

发明人： Dejun Wang ,  Hassan Elwan ,  Adel F. Fanous

IPC分类号： H04M1/00 ,  H04N7/16

CPC分类号： H04N5/64

摘要： A portable memory device dimensioned and configured as any of a removable flash memory card, a USB flash drive, and a jump drive and a method of wireless communication, wherein the portable memory device comprises a single housing component; a data storage component within the single housing component; and a wireless receiver operatively connected to the data storage component and within the single housing component, wherein the wireless receiver is adapted to receive wireless signals comprising radio signals, satellite signals, TV signals, and Bluetooth™ specification signals, and wherein the wireless receiver is adapted to wirelessly communicate with a LAN. The portable memory device may further comprise an interface component adapted to connect to a host computing device. Preferably, the TV signals comprise mobile TV signals.

摘要翻译： 一种便携式存储设备，其尺寸和配置为任何可拆卸的闪存卡，USB闪存驱动器和跳转驱动器以及无线通信的方法，其中所述便携式存储设备包括单个外壳部件; 单个外壳部件内的数据存储部件; 以及无线接收器，其可操作地连接到所述数据存储部件并且在所述单个外壳部件内，其中所述无线接收器适于接收包括无线电信号，卫星信号，TV信号和Bluetooth TM规范信号的无线信号，并且其中所述无线接收器 适于与LAN无线通信。 便携式存储设备还可以包括适于连接到主计算设备的接口组件。 优选地，TV信号包括移动TV信号。

公开(公告)号：US07525465B1

公开(公告)日：2009-04-28

申请号：US12033305

申请日：2008-02-19

申请人： Hassan Elwan ,  Dejun Wang

发明人： Hassan Elwan ,  Dejun Wang

IPC分类号： H03M3/00

CPC分类号： H03M3/364 ,  H03M3/362 ,  H03M3/366 ,  H03M3/424 ,  H03M3/452

摘要： A continuous time-sigma delta (CT-SD) data converter comprising a loop filter includes a first integrator having a first loop filter coefficient and a second integrator operatively coupled to the first integrator, the second integrator having a second loop filter coefficient, a modulator coupled to the loop filter, a reset switch coupled to the second integrator, a first peak detector operatively coupled in series with the second integrator to indicate an instability condition of a signal level exceeding a first threshold at an output of the second integrator, a second peak detector adapted to detect an input signal level to the CT-SD data converter, and a digital engine coupled to the first peak detector.

摘要翻译： 包括环路滤波器的连续时间Σ-Δ（CT-SD）数据转换器包括具有第一环路滤波器系数的第一积分器和可操作地耦合到第一积分器的第二积分器，第二积分器具有第二环路滤波器系数，调制器 耦合到所述环路滤波器，耦合到所述第二积分器的复位开关，与所述第二积分器串联操作耦合的第一峰值检测器，以指示在所述第二积分器的输出处超过第一阈值的信号电平的不稳定性条件;第二 峰值检测器，适于检测到CT-SD数据转换器的输入信号电平，以及耦合到第一峰值检测器的数字引擎。

公开(公告)号：US20080297239A1

公开(公告)日：2008-12-04

申请号：US11755125

申请日：2007-05-30

申请人： Hassan Elwan ,  Amr Fahim ,  Edward Youssounan ,  Ahmed A. Emira ,  Dejun Wang

发明人： Hassan Elwan ,  Amr Fahim ,  Edward Youssounan ,  Ahmed A. Emira ,  Dejun Wang

IPC分类号： H03B1/04

CPC分类号： H03H11/10 ,  H03H11/1291 ,  H03H11/525

摘要： A noise shaping and voltage gain filtering third order electrical circuit and method comprises at least one pair of input resistors; a Frequency Dependent Negative Resistance (FDNR) filter positioned in between the at least one pair of input resistors; a feedback resistor; and an amplifier operatively connected to the feedback resistor and the at least one pair of input resistors, wherein as an electrical signal is introduced to the electrical circuit, the FDNR filter is adapted to filter signal blockers out of the electrical signal prior to the electrical signal reaching the amplifier for signal amplification, wherein the FDNR filter does not contribute noise to a signal-to-noise ratio (SNR) of the electrical signal, and wherein a transfer function of the FDNR filter is substantially elliptical in shape.

摘要翻译： 噪声整形和电压增益滤波三阶电路和方法包括至少一对输入电阻器; 位于所述至少一对输入电阻器之间的频率相关负电阻（FDNR）滤波器; 反馈电阻; 以及可操作地连接到所述反馈电阻器和所述至少一对输入电阻器的放大器，其中当电信号被引入所述电路时，所述FDNR滤波器适于在所述电信号之前将所述电信号中的信号阻挡器滤波 到达用于信号放大的放大器，其中FDNR滤波器不对电信号的信噪比（SNR）贡献噪声，并且其中FDNR滤波器的传递函数的形状基本上是椭圆形的。