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1. 发明授权

US09106089B2 Self-adapting voltage amplifier and battery charger detection 有权
标题翻译：自适应电压放大器和电池充电器检测
公开(公告)号：US09106089B2
公开(公告)日：2015-08-11
申请号：US13958600
申请日：2013-08-04
申请人： Wenzhong Zhang , Shayan Zhang , Yi Zhao
发明人： Wenzhong Zhang , Shayan Zhang , Yi Zhao
IPC分类号： H02J7/00 , H03F3/45
CPC分类号： H02J7/0052 , H02J2007/0062 , H03F3/45183
摘要： An amplifier applies a self-adapting voltage to an output terminal. A bias circuit provides a greater bias current in a first external connection condition, in the absence of a pull-up resistance connected to the output terminal, than when such a pull-up resistance is present. The amplifier applies a different voltage to the output terminal in the absence of a pull-up resistance than when such a pull-up resistance is present. The circuit can be used in a portable device for receiving charging current from a battery charger through a connector having a D+ pin for connection to the battery charger and connected to the amplifier output terminal for battery charger detection. The portable device can meet the USB battery charger specification rev. 1.2.
摘要翻译：放大器将自适应电压施加到输出端子。在不存在连接到输出端子的上拉电阻的情况下，偏置电路在第一外部连接状态下提供更大的偏置电流，而不是存在这样的上拉电阻。在不存在上拉电阻的情况下，放大器对输出端子施加不同的电压，而不是存在这样的上拉电阻。该电路可以用在便携式设备中，用于通过具有用于连接到电池充电器的D +引脚的连接器从电池充电器接收充电电流，并连接到用于电池充电器检测的放大器输出端子。便携式设备可以满足USB电池充电器规格的修改。 1.2。

2. 发明申请

US20140217960A1 SELF-ADAPTING VOLTAGE AMPLIFIER AND BATTERY CHARGER DETECTION 有权
标题翻译：自适应电压放大器和电池充电器检测
公开(公告)号：US20140217960A1
公开(公告)日：2014-08-07
申请号：US13958600
申请日：2013-08-04
申请人： Wenzhong Zhang , Shayan Zhang , Yi Zhao
发明人： Wenzhong Zhang , Shayan Zhang , Yi Zhao
IPC分类号： H02J7/00 , H03F3/45
CPC分类号： H02J7/0052 , H02J2007/0062 , H03F3/45183
摘要： An amplifier applies a self-adapting voltage to an output terminal. A bias circuit provides a greater bias current in a first external connection condition, in the absence of a pull-up resistance connected to the output terminal, than when such a pull-up resistance is present. The amplifier applies a different voltage to the output terminal in the absence of a pull-up resistance than when such a pull-up resistance is present. The circuit can be used in a portable device for receiving charging current from a battery charger through a connector having a D+ pin for connection to the battery charger and connected to the amplifier output terminal for battery charger detection. The portable device can meet the USB battery charger specification rev. 1.2.
摘要翻译：放大器将自适应电压施加到输出端子。在不存在连接到输出端子的上拉电阻的情况下，偏置电路在第一外部连接状态下提供更大的偏置电流，而不是存在这样的上拉电阻。在不存在上拉电阻的情况下，放大器对输出端子施加不同的电压，而不是存在这样的上拉电阻。该电路可以用在便携式设备中，用于通过具有用于连接到电池充电器的D +引脚的连接器从电池充电器接收充电电流，并连接到用于电池充电器检测的放大器输出端子。便携式设备可以满足USB电池充电器规格的修改。 1.2。

3. 发明授权

US08643426B2 Voltage level shifter 有权
标题翻译：电压电平转换器
公开(公告)号：US08643426B2
公开(公告)日：2014-02-04
申请号：US13605987
申请日：2012-09-06
申请人： Wenzhong Zhang , Yin Guo , Shayan Zhang
发明人： Wenzhong Zhang , Yin Guo , Shayan Zhang
IPC分类号： H03L5/00
CPC分类号： H03K3/356182
摘要： A voltage level shifter has an input circuit with an inverter coupled to an input node, a pull-down control transistor with a gate coupled to a first node of the inverter, and a pull-up control transistor with a gate coupled to a second node of the inverter. Sources of the pull-down and pull-up control transistors are coupled to a low voltage reference. A transient connectivity limiter (TCL) has pull-down and pull-up transistors. Two control inputs are coupled to respective first and second nodes of the inverter and path inputs are coupled to respective drains of the pull-down and pull-up control transistors. An output circuit has inputs coupled to pull-up and pull-down nodes of the TCL. During a voltage level transition at the input node, the TCL connects the pull-up node to the low voltage reference through the TCL pull-up transistor transitioning from a saturation to a sub-threshold region of operation.
摘要翻译：电压电平移位器具有输入电路，其中反相器耦合到输入节点，下拉控制晶体管，其栅极耦合到反相器的第一节点，以及上拉控制晶体管，其栅极耦合到第二节点的变频器。下拉和上拉控制晶体管的源极耦合到低电压基准。瞬态连接限制器（TCL）具有下拉和上拉晶体管。两个控制输入耦合到反相器的相应的第一和第二节点，并且路径输入耦合到下拉和上拉控制晶体管的相应的漏极。输出电路具有耦合到TCL的上拉和下拉节点的输入。在输入节点处的电压电平转换期间，TCL通过TCL上拉晶体管将上拉节点连接到低电压基准电压，从饱和电压转换到次阈值操作区域。

4. 发明申请

US20130222037A1 VOLTAGE LEVEL SHIFTER 有权
标题翻译：电压水平变换器
公开(公告)号：US20130222037A1
公开(公告)日：2013-08-29
申请号：US13605987
申请日：2012-09-06
申请人： Wenzhong Zhang , Yin Guo , Shayan Zhang
发明人： Wenzhong Zhang , Yin Guo , Shayan Zhang
IPC分类号： H03L5/00
CPC分类号： H03K3/356182
摘要： A voltage level shifter has an input circuit with an inverter coupled to an input node, a pull-down control transistor with a gate coupled to a first node of the inverter, and a pull-up control transistor with a gate coupled to a second node of the inverter. Sources of the pull-down and pull-up control transistors are coupled to a low voltage reference. A transient connectivity limiter (TCL) has pull-down and pull-up transistors. Two control inputs are coupled to respective first and second nodes of the inverter and path inputs are coupled to respective drains of the pull-down and pull-up control transistors. An output circuit has inputs coupled to pull-up and pull-down nodes of the TCL. During a voltage level transition at the input node, the TCL connects the pull-up node to the low voltage reference through the TCL pull-up transistor transitioning from a saturation to a sub-threshold region of operation.
摘要翻译：电压电平移位器具有输入电路，其中反相器耦合到输入节点，下拉控制晶体管，其栅极耦合到反相器的第一节点，以及上拉控制晶体管，其栅极耦合到第二节点的变频器。下拉和上拉控制晶体管的源极耦合到低电压基准。瞬态连接限制器（TCL）具有下拉和上拉晶体管。两个控制输入耦合到反相器的相应的第一和第二节点，并且路径输入耦合到下拉和上拉控制晶体管的相应的漏极。输出电路具有耦合到TCL的上拉和下拉节点的输入。在输入节点的电压电平转换期间，TCL通过TCL上拉晶体管将上拉节点连接到低电压基准电压，从饱和电压转换到次阈值操作区域。

5. 发明授权

US08975926B2 Comparator and clock signal generation circuit 有权
标题翻译：比较器和时钟信号发生电路
公开(公告)号：US08975926B2
公开(公告)日：2015-03-10
申请号：US14190093
申请日：2014-02-26
申请人： Wenzhong Zhang , Chris C. Dao , Jehoda Refaeli , Yi Zhao
发明人： Wenzhong Zhang , Chris C. Dao , Jehoda Refaeli , Yi Zhao
IPC分类号： H03K5/22 , H03K3/3565
CPC分类号： H03K3/3565
摘要： A comparator used in a clock signal generation circuit compares two input signals and generates an output signal. The comparator has first and second input transistors coupled to the input signals. First and second hysteresis transistors are coupled between the input transistors and an output stage of the comparator, and apply hysteresis to a comparison of the input signals. First and second hysteresis control transistors are coupled between the input transistors and the hysteresis transistors to isolate the hysteresis transistors from the input transistors under control of a hysteresis enable signal. The comparator is operable in a first mode or a second mode based on a hysteresis enable signal. In the first mode the comparator applies hysteresis to the comparison of the input signals and in the second mode, compares the input signals without hysteresis.
摘要翻译：在时钟信号发生电路中使用的比较器比较两个输入信号并产生输出信号。比较器具有耦合到输入信号的第一和第二输入晶体管。第一和第二滞后晶体管耦合在输入晶体管和比较器的输出级之间，并且将迟滞应用于输入信号的比较。第一和第二滞环控制晶体管耦合在输入晶体管和滞后晶体管之间，以在迟滞使能信号的控制下将滞环晶体管与输入晶体管隔离。比较器可基于滞后使能信号在第一模式或第二模式中操作。在第一种模式下，比较器对输入信号的比较应用迟滞，而在第二种模式下，比较输入信号而没有滞后。

6. 发明申请

US20140300400A1 COMPARATOR AND CLOCK SIGNAL GENERATION CIRCUIT 有权
标题翻译：比较器和时钟信号发生电路
公开(公告)号：US20140300400A1
公开(公告)日：2014-10-09
申请号：US14190093
申请日：2014-02-26
申请人： Wenzhong Zhang , Chris C. Dao , Jehoda Refaeli , Yi Zhao
发明人： Wenzhong Zhang , Chris C. Dao , Jehoda Refaeli , Yi Zhao
IPC分类号： H03K3/013
CPC分类号： H03K3/3565
摘要： A comparator used in a clock signal generation circuit has first and second input transistors coupled to input signals of the comparator. First and second hysteresis transistors are coupled between the input transistors and an output stage of the comparator, and apply hysteresis to a comparison of the input signals. First and second hysteresis control transistors are coupled between the input transistors and the hysteresis transistors to isolate the hysteresis transistors from the input transistors under control of a hysteresis enable signal.
摘要翻译：在时钟信号发生电路中使用的比较器具有耦合到比较器的输入信号的第一和第二输入晶体管。第一和第二滞后晶体管耦合在输入晶体管和比较器的输出级之间，并且将迟滞应用于输入信号的比较。第一和第二滞环控制晶体管耦合在输入晶体管和滞后晶体管之间，以在迟滞使能信号的控制下将滞环晶体管与输入晶体管隔离。

7. 发明授权

US08873516B2 Communication system using OFDM for one direction and DSSS for another direction 有权
标题翻译：通信系统使用一个方向的OFDM和另一个方向的DSSS
公开(公告)号：US08873516B2
公开(公告)日：2014-10-28
申请号：US12905884
申请日：2010-10-15
申请人： Xiaodong Li , Hui Liu , Wenzhong Zhang
发明人： Xiaodong Li , Hui Liu , Wenzhong Zhang
IPC分类号： H04B7/216 , H04L5/14 , H04B1/707 , H04L5/02 , H04L27/26 , H04W16/10 , H04W52/08 , H04W52/10 , H04W72/08
CPC分类号： H04L5/14 , H04B1/707 , H04L5/023 , H04L5/143 , H04L27/2601 , H04W16/10 , H04W52/08 , H04W52/10 , H04W72/08
摘要： A method and apparatus for wireless communication are described. In one embodiment, a method for communicating with a subscriber comprises transmitting orthogonal frequency domain multiplexing (OFDM) signals to the subscriber, and receiving direct-sequence spread spectrum (DSSS) signals from the subscriber.
摘要翻译：描述了一种用于无线通信的方法和装置。在一个实施例中，用于与用户进行通信的方法包括向用户发送正交频域复用（OFDM）信号，以及从订户接收直接序列扩频（DSSS）信号。

8. 发明授权

US08036199B2 OFDMA with adaptive subcarrier-cluster configuration and selective loading 有权
标题翻译： OFDMA具有自适应子载波簇配置和选择性加载
公开(公告)号：US08036199B2
公开(公告)日：2011-10-11
申请号：US12748781
申请日：2010-03-29
申请人： Xiaodong Li , Hui Liu , Wenzhong Zhang , Kemin Li
发明人： Xiaodong Li , Hui Liu , Wenzhong Zhang , Kemin Li
IPC分类号： H04W4/00 , H04J1/00 , H04B7/208
CPC分类号： H04L5/0035 , H04B17/336 , H04B17/345 , H04J11/00 , H04J11/003 , H04J11/005 , H04L1/0003 , H04L1/0005 , H04L1/0009 , H04L1/0011 , H04L1/0025 , H04L1/0026 , H04L1/0079 , H04L1/04 , H04L5/0007 , H04L5/0032 , H04L5/0037 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/005 , H04L5/006 , H04L5/0064 , H04L5/0073 , H04L5/0082 , H04L5/0094 , H04L5/023 , H04L25/0226 , H04L25/0228 , H04L27/2601 , H04L27/2602 , H04L47/125 , H04W24/08 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0453 , H04W72/082 , H04W72/085 , H04W74/04
摘要： A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
摘要翻译：描述了用于在正交频分多址（OFDMA）系统中分配子载波的方法和装置。在一个实施例中，该方法包括向第一用户分配至少一个子载波分集簇，并向第二用户分配至少一个相干簇。

9. 发明申请

US20100319331A1 Diesel Particulate Filter Regeneration System Including Shore Station 有权
标题翻译：柴油颗粒过滤器再生系统，包括岸站
公开(公告)号：US20100319331A1
公开(公告)日：2010-12-23
申请号：US12689812
申请日：2010-01-19
申请人： Wayne M. Wagner , Joanne Wagner , John T. Herman , Mary J. Lorenzen , Wenzhong Zhang
发明人： Wayne M. Wagner , Joanne Wagner , John T. Herman , Mary J. Lorenzen , Wenzhong Zhang
IPC分类号： F01N3/023
CPC分类号： F01N3/027 , F01N3/0238 , F01N3/103 , F01N3/30 , F01N13/0097 , F01N2240/16 , F01N2240/20 , F01N2240/26 , F01N2560/08
摘要： The present disclosure relates to a diesel exhaust treatment device including a catalytic converter positioned upstream from a diesel particulate filter. An electric heater is positioned between the catalytic converter and the diesel particulate filter. A shore station can be used to provide power and combustion air to the diesel exhaust treatment device during regeneration of the diesel particulate filter.
摘要翻译：本公开涉及一种柴油机废气处理装置，其包括位于柴油机微粒过滤器上游的催化转化器。电加热器位于催化转化器和柴油机微粒过滤器之间。在柴油机微粒过滤器的再生期间，岸台可用于向柴油机废气处理装置提供动力和燃烧空气。

10. 发明授权

US07489934B2 OFDMA with adaptive subcarrier-cluster configuration and selective loading 有权
标题翻译： OFDMA具有自适应子载波簇配置和选择性加载
公开(公告)号：US07489934B2
公开(公告)日：2009-02-10
申请号：US11931759
申请日：2007-10-31
申请人： Xiaodong Li , Hui Liu , Wenzhong Zhang , Kemin Li
发明人： Xiaodong Li , Hui Liu , Wenzhong Zhang , Kemin Li
IPC分类号： H04W72/00 , H04W40/00 , H04W1/00 , H04B7/00 , H04B1/38 , H04B7/208 , H04M1/00 , H04J1/00
CPC分类号： H04L5/0035 , H04B17/336 , H04B17/345 , H04J11/00 , H04J11/003 , H04J11/005 , H04L1/0003 , H04L1/0005 , H04L1/0009 , H04L1/0011 , H04L1/0025 , H04L1/0026 , H04L1/0079 , H04L1/04 , H04L5/0007 , H04L5/0032 , H04L5/0037 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/005 , H04L5/006 , H04L5/0064 , H04L5/0073 , H04L5/0082 , H04L5/0094 , H04L5/023 , H04L25/0226 , H04L25/0228 , H04L27/2601 , H04L27/2602 , H04L47/125 , H04W24/08 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0453 , H04W72/082 , H04W72/085 , H04W74/04
摘要： A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
摘要翻译：描述了用于在正交频分多址（OFDMA）系统中分配子载波的方法和装置。在一个实施例中，该方法包括向第一用户分配至少一个子载波分集簇，并向第二用户分配至少一个相干簇。

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