公开(公告)号：US20130127427A1

公开(公告)日：2013-05-23

申请号：US13316559

申请日：2011-12-12

申请人： Jiazhou Liu ,  Dawei Guo ,  Yanfeng Wang

发明人： Jiazhou Liu ,  Dawei Guo ,  Yanfeng Wang

IPC分类号： G05F1/10

CPC分类号： G05F1/575

摘要： A regulator includes an output circuit receives a feedback voltage and provides an output current based on the feedback voltage, an output voltage of the regulator is based on the output current; a first MOSFET coupled to the output circuit and receives the output voltage of the regulator; a second MOSFET coupled to the first MOSFET provides the feedback voltage based on, at least in part, the output voltage; a current sink coupled to the first MOSFET and the second MOSFET and receive jointly a current from the first MOSFET and a current from the second MOSFET; a current source coupled to the second MOSFET and provides the second MOSFET with the current, a connection of the current source and the second MOSFET is further coupled to the output circuit and provides the feedback voltage based on, at least in part, the current in the second MOSFET.

摘要翻译： 调节器包括输出电路接收反馈电压并且基于反馈电压提供输出电流，调节器的输出电压基于输出电流; 耦合到输出电路并接收调节器的输出电压的第一MOSFET; 耦合到第一MOSFET的第二MOSFET提供至少部分地基于输出电压的反馈电压; 电流吸收器，耦合到第一MOSFET和第二MOSFET，并且共同接收来自第一MOSFET的电流和来自第二MOSFET的电流; 电流源，耦合到第二MOSFET并且向第二MOSFET提供电流，电流源和第二MOSFET的连接进一步耦合到输出电路，并且至少部分地基于电流源中的电流提供反馈电压 第二个MOSFET。

公开(公告)号：US08339194B2

公开(公告)日：2012-12-25

申请号：US12973938

申请日：2010-12-21

申请人： Jiazhou Liu ,  Dawei Guo

发明人： Jiazhou Liu ,  Dawei Guo

IPC分类号： H03D1/00

CPC分类号： H04L27/06 ,  G07B15/063

摘要： A new demodulator with low power consumption and high gain which is suitable for CMOS integration is provided. The demodulator makes use of a MOS configured in a “common-source” status so as to achieve a desirable gain.

摘要翻译： 提供了具有低功耗和高增益的新型解调器，适用于CMOS集成。 解调器利用配置在共源状态的MOS，以便获得期望的增益。

公开(公告)号：US08508293B2

公开(公告)日：2013-08-13

申请号：US13405632

申请日：2012-02-27

申请人： Jiazhou Liu ,  Dawei Guo ,  Yangeng Wang

发明人： Jiazhou Liu ,  Dawei Guo ,  Yangeng Wang

IPC分类号： H03K9/02

CPC分类号： H04L27/06 ,  H03D1/2272

摘要： An ASK demodulator comprises a rectification circuit which receives and rectifies an ASK signal to generate a rectified current; an active load circuit is coupled to the rectification circuit and receives the rectified current and present an impedance which is inversely proportional to at least a part of the rectified current when a frequency of a base band signal meets a preset condition; a comparator is coupled to the rectification circuit and the active load circuit and receives a reference voltage and a voltage generated based on, at least in part, the rectified current and the impedance, and compares the reference voltage and the generated voltage to generate a demodulated signal.

摘要翻译： ASK解调器包括整流电路，其接收并整流ASK信号以产生整流电流; 有源负载电路耦合到整流电路，并且当基带信号的频率满足预设条件时，接收整流电流并呈现与至少一部分整流电流成反比的阻抗; 比较器耦合到整流电路和有源负载电路，并且接收基准电压和至少部分地基于整流电流和阻抗产生的电压，并且比较参考电压和产生的电压以产生解调的 信号。

公开(公告)号：US20120166256A1

公开(公告)日：2012-06-28

申请号：US12981526

申请日：2010-12-30

申请人： Yanfeng Wang ,  Dawei Guo ,  Jiazhou Liu

发明人： Yanfeng Wang ,  Dawei Guo ,  Jiazhou Liu

IPC分类号： G07B15/00 ,  H04W4/04

CPC分类号： G07B15/063

摘要： A method comprises: disposing an on-board unit at a preset relative position with respect to a road-side unit; transmitting a signal by the road-side unit; receiving the signal by the on-board unit and detecting a strength of the received signal; calculating, by the on-board unit, a calculated strength of the received signal according to the detected strength of the received signal; storing the calculated strength of the received signal in a memory accessible by the on-board unit; using the stored calculated strength of the received signal to determine if payment of a toll should be made.

摘要翻译： 一种方法包括：将车载单元布置在相对于路侧单元的预设相对位置; 通过路侧单元发送信号; 通过机载单元接收信号并检测接收信号的强度; 根据检测到的接收信号的强度，由车载单元计算接收信号的计算强度; 将计算出的接收信号的强度存储在由板上单元访问的存储器中; 使用存储的所计算的接收信号的强度来确定是否应该支付费用。

公开(公告)号：US20130182797A1

公开(公告)日：2013-07-18

申请号：US13405632

申请日：2012-02-27

申请人： Jiazhou Liu ,  Dawei Guo ,  Yangeng Wang

发明人： Jiazhou Liu ,  Dawei Guo ,  Yangeng Wang

IPC分类号： H04L27/06

CPC分类号： H04L27/06 ,  H03D1/2272

摘要： An ASK demodulator comprises a rectification circuit which receives and rectifies an ASK signal to generate a rectified current; an active load circuit is coupled to the rectification circuit and receives the rectified current and present an impedance which is inversely proportional to at least a part of the rectified current when a frequency of a base band signal meets a preset condition; a comparator is coupled to the rectification circuit and the active load circuit and receives a reference voltage and a voltage generated based on, at least in part, the rectified current and the impedance, and compares the reference voltage and the generated voltage to generate a demodulated signal.

摘要翻译： ASK解调器包括整流电路，其接收并整流ASK信号以产生整流电流; 有源负载电路耦合到整流电路，并且当基带信号的频率满足预设条件时，接收整流电流并呈现与至少一部分整流电流成反比的阻抗; 比较器耦合到整流电路和有源负载电路，并且接收基准电压和至少部分地基于整流电流和阻抗产生的电压，并且比较参考电压和产生的电压以产生解调的 信号。

公开(公告)号：US20130162363A1

公开(公告)日：2013-06-27

申请号：US13400129

申请日：2012-02-20

申请人： Peng Han ,  Dawei Guo ,  Jiazhou Liu ,  Yanfeng Wang

发明人： Peng Han ,  Dawei Guo ,  Jiazhou Liu ,  Yanfeng Wang

IPC分类号： H03C1/00 ,  G06G7/12

CPC分类号： H03C1/36 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033 ,  H03D2200/0052 ,  H04L27/04

摘要： An ASK modulator includes a baseband unit which obtains a sequence comprising at least one amplitude value and adds an additional value to each of the at least one amplitude value to generate a modified sequence; a digital-to-analog converter coupled to the baseband unit, the digital-to-analog converter converts the modified sequence to generate a first signal, the additional value is determined based on a half scale of the digital-analog converter; and a mixer which receives the first signal and a second signal and generate a modulated signal by mixing the first signal with the second signal.

摘要翻译： ASK调制器包括：基带单元，其获得包括至少一个幅度值的序列，并且对所述至少一个幅度值中的每一个增加附加值以生成修改的序列; 耦合到所述基带单元的数模转换器，所述数模转换器转换所述经修改的序列以产生第一信号，所述附加值基于所述数模转换器的半标度来确定; 以及混合器，其接收第一信号和第二信号，并通过将第一信号与第二信号混合来产生调制信号。

公开(公告)号：US08797112B2

公开(公告)日：2014-08-05

申请号：US13400129

申请日：2012-02-20

申请人： Peng Han ,  Dawei Guo Guo ,  Jiazhou Liu ,  Yanfeng Wang

发明人： Peng Han ,  Dawei Guo Guo ,  Jiazhou Liu ,  Yanfeng Wang

IPC分类号： H03C1/00

CPC分类号： H03C1/36 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033 ,  H03D2200/0052 ,  H04L27/04

摘要： An ASK modulator includes a baseband unit which obtains a sequence comprising at least one amplitude value and adds an additional value to each of the at least one amplitude value to generate a modified sequence; a digital-to-analog converter coupled to the baseband unit, the digital-to-analog converter converts the modified sequence to generate a first signal, the additional value is determined based on a half scale of the digital-analog converter; and a mixer which receives the first signal and a second signal and generate a modulated signal by mixing the first signal with the second signal.

摘要翻译： ASK调制器包括：基带单元，其获得包括至少一个幅度值的序列，并且对所述至少一个幅度值中的每一个增加附加值以生成修改的序列; 耦合到所述基带单元的数模转换器，所述数模转换器转换所述经修改的序列以产生第一信号，所述附加值基于所述数模转换器的半标度来确定; 以及混合器，其接收第一信号和第二信号，并通过将第一信号与第二信号混合来产生调制信号。

公开(公告)号：US20120119799A1

公开(公告)日：2012-05-17

申请号：US12961514

申请日：2010-12-07

申请人： Jiazhou Liu ,  Dawei Guo

发明人： Jiazhou Liu ,  Dawei Guo

IPC分类号： H03L7/00

CPC分类号： H03K9/06 ,  G01R23/15 ,  G07C5/008

摘要： A wake-up circuit, comprising: a control signal generation circuit comprising: a pulse generator configured to receive a digital signal and generate a pulse sequence signal with a frequency thereof; a first comparison circuit and a second comparison circuit both coupled to the pulse generator and configured to receive the pulse sequence signal; the first comparison circuit is configured to compare the frequency of the pulse sequence signal with a first threshold frequency and generate a first control signal; the second comparison circuit is configured to compare the frequency of the pulse sequence signal with a second threshold frequency and generate a second control signal; the frequency detector further comprises: an indication generation circuit configured to generate a wake-up indication if the frequency of the pulse sequence signal falls within a frequency range defined by the first and second threshold frequencies.

摘要翻译： 一种唤醒电路，包括：控制信号产生电路，包括：脉冲发生器，被配置为接收数字信号并产生其频率的脉冲序列信号; 第一比较电路和第二比较电路，两者都耦合到脉冲发生器并被配置为接收脉冲序列信号; 第一比较电路被配置为将脉冲序列信号的频率与第一阈值频率进行比较，并产生第一控制信号; 第二比较电路被配置为将脉冲序列信号的频率与第二阈值频率进行比较，并产生第二控制信号; 频率检测器还包括：指示产生电路，被配置为如果脉冲序列信号的频率落在由第一和第二阈值频率限定的频率范围内，则产生唤醒指示。

公开(公告)号：US08730061B2

公开(公告)日：2014-05-20

申请号：US12981526

申请日：2010-12-30

申请人： Yanfeng Wang ,  Dawei Guo ,  Jiazhou Liu

发明人： Yanfeng Wang ,  Dawei Guo ,  Jiazhou Liu

IPC分类号： G08G1/00 ,  G08G1/01 ,  G07B15/02 ,  H04B1/40 ,  H04B7/00

CPC分类号： G07B15/063

摘要： A method comprises: disposing an on-board unit at a preset relative position with respect to a road-side unit; transmitting a signal by the road-side unit; receiving the signal by the on-board unit and detecting a strength of the received signal; calculating, by the on-board unit, a calculated strength of the received signal according to the detected strength of the received signal; storing the calculated strength of the received signal in a memory accessible by the on-board unit; using the stored calculated strength of the received signal to determine if payment of a toll should be made.

摘要翻译： 一种方法包括：将车载单元布置在相对于路侧单元的预设相对位置处; 通过路侧单元发送信号; 通过机载单元接收信号并检测接收信号的强度; 根据检测到的接收信号的强度，由车载单元计算接收信号的计算强度; 将计算出的接收信号的强度存储在由板上单元访问的存储器中; 使用存储的所计算的接收信号的强度来确定是否应该支付费用。

公开(公告)号：US08274313B2

公开(公告)日：2012-09-25

申请号：US12961514

申请日：2010-12-07

申请人： Jiazhou Liu ,  Dawei Guo

发明人： Jiazhou Liu ,  Dawei Guo

IPC分类号： G01R23/02 ,  H03D3/00 ,  H03K9/06

CPC分类号： H03K9/06 ,  G01R23/15 ,  G07C5/008

摘要： A wake-up circuit, comprising: a control signal generation circuit comprising: a pulse generator configured to receive a digital signal and generate a pulse sequence signal with a frequency thereof; a first comparison circuit and a second comparison circuit both coupled to the pulse generator and configured to receive the pulse sequence signal; the first comparison circuit is configured to compare the frequency of the pulse sequence signal with a first threshold frequency and generate a first control signal; the second comparison circuit is configured to compare the frequency of the pulse sequence signal with a second threshold frequency and generate a second control signal; the frequency detector further comprises: an indication generation circuit configured to generate a wake-up indication if the frequency of the pulse sequence signal falls within a frequency range defined by the first and second threshold frequencies.

摘要翻译： 一种唤醒电路，包括：控制信号产生电路，包括：脉冲发生器，被配置为接收数字信号并产生其频率的脉冲序列信号; 第一比较电路和第二比较电路，两者都耦合到脉冲发生器并被配置为接收脉冲序列信号; 第一比较电路被配置为将脉冲序列信号的频率与第一阈值频率进行比较，并产生第一控制信号; 第二比较电路被配置为将脉冲序列信号的频率与第二阈值频率进行比较，并产生第二控制信号; 频率检测器还包括：指示产生电路，被配置为如果脉冲序列信号的频率落在由第一和第二阈值频率限定的频率范围内，则产生唤醒指示。