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1. 发明授权

US07675326B1 Dynamically-adjustable differential output drivers 失效
标题翻译：动态可调差分输出驱动器
公开(公告)号：US07675326B1
公开(公告)日：2010-03-09
申请号：US12163709
申请日：2008-06-27
申请人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
发明人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
IPC分类号： H03K19/094
CPC分类号： H03K19/00369 , H03K19/01812 , H03K19/01837 , H03K19/018514 , H03K19/018585
摘要： Systems and methods are provided using dynamically adjustable differential output drivers. Integrated circuits such as programmable logic devices may be provided with adjustable differential output drivers for transmitting high-speed data to other integrated circuits. The peak-to-peak output voltage and common-mode voltage of the output drivers may be adjusted. Dynamic control circuitry may be used to control the settings of current sources, programmable resistors, and voltage source circuitry in the adjustable differential output driver automatically in real time. The adjustable components in the differential output driver may be adjusted by the dynamic control circuitry based on feedback information received from the integrated circuit to which the data is transmitted.
摘要翻译：使用动态可调差分输出驱动器提供系统和方法。诸如可编程逻辑器件的集成电路可以设置有用于将高速数据传输到其他集成电路的可调差分输出驱动器。可以调整输出驱动器的峰峰值输出电压和共模电压。动态控制电路可用于实时自动控制可调差分输出驱动器中的电流源，可编程电阻和电压源电路的设置。基于从发送数据的集成电路接收到的反馈信息，可以通过动态控制电路来调整差分输出驱动器中的可调节部件。

2. 发明授权

US07397270B1 Dynamically-adjustable differential output drivers 有权
标题翻译：动态可调差分输出驱动器
公开(公告)号：US07397270B1
公开(公告)日：2008-07-08
申请号：US11138919
申请日：2005-05-25
申请人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
发明人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
IPC分类号： H03K19/094
CPC分类号： H03K19/00369 , H03K19/01812 , H03K19/01837 , H03K19/018514 , H03K19/018585
摘要： Systems and methods are provided using dynamically adjustable differential output drivers. Integrated circuits such as programmable logic devices may be provided with adjustable differential output drivers for transmitting high-speed data to other integrated circuits. The peak-to-peak output voltage and common-mode voltage of the output drivers may be adjusted. Dynamic control circuitry may be used to control the settings of current sources, programmable resistors, and voltage source circuitry in the adjustable differential output driver automatically in real time. The adjustable components in the differential output driver may be adjusted by the dynamic control circuitry based on feedback information received from the integrated circuit to which the data is transmitted.
摘要翻译：使用动态可调差分输出驱动器提供系统和方法。诸如可编程逻辑器件的集成电路可以设置有用于将高速数据传输到其他集成电路的可调差分输出驱动器。可以调整输出驱动器的峰峰值输出电压和共模电压。动态控制电路可用于实时自动控制可调差分输出驱动器中的电流源，可编程电阻和电压源电路的设置。基于从发送数据的集成电路接收到的反馈信息，可以通过动态控制电路来调整差分输出驱动器中的可调节部件。

3. 发明授权

US06943588B1 Dynamically-adjustable differential output drivers 有权
标题翻译：动态可调差分输出驱动器
公开(公告)号：US06943588B1
公开(公告)日：2005-09-13
申请号：US10670146
申请日：2003-09-24
申请人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
发明人： Mei Luo , Sergey Shumarayev , Wilson Wong , Chong H. Lee
IPC分类号： H03K19/094
CPC分类号： H03K19/00369 , H03K19/01812 , H03K19/01837 , H03K19/018514 , H03K19/018585
摘要： Systems and methods are provided using dynamically adjustable differential output drivers. Integrated circuits such as programmable logic devices may be provided with adjustable differential output drivers for transmitting high-speed data to other integrated circuits. The peak-to-peak output voltage and common-mode voltage of the output drivers may be adjusted. Dynamic control circuitry may be used to control the settings of current sources, programmable resistors, and voltage source circuitry in the adjustable differential output driver automatically in real time. The adjustable components in the differential output driver may be adjusted by the dynamic control circuitry based on feedback information received from the integrated circuit to which the data is transmitted.
摘要翻译：使用动态可调差分输出驱动器提供系统和方法。诸如可编程逻辑器件的集成电路可以设置有用于将高速数据传输到其他集成电路的可调差分输出驱动器。可以调整输出驱动器的峰峰值输出电压和共模电压。动态控制电路可用于实时自动控制可调差分输出驱动器中的电流源，可编程电阻和电压源电路的设置。基于从发送数据的集成电路接收到的反馈信息，可以通过动态控制电路来调整差分输出驱动器中的可调节部件。

4. 发明授权

US07176710B1 Dynamically adjustable termination impedance control techniques 有权
标题翻译：动态可调终端阻抗控制技术
公开(公告)号：US07176710B1
公开(公告)日：2007-02-13
申请号：US11093188
申请日：2005-03-28
申请人： Mei Luo , Wilson Wong , Sergey Shumarayev
发明人： Mei Luo , Wilson Wong , Sergey Shumarayev
IPC分类号： H03K19/175
CPC分类号： H04L25/0278
摘要： The on-chip impedance termination circuits can be dynamically adjusted to match transmission line impedance values. A network of termination resistors on an integrated circuit provides termination impedance to a transmission line coupled to an IO pin. The termination resistors are coupled in series and in parallel with each other. Pass gates are coupled to the resistors. The pass gates are individually turned ON or OFF to couple or decouple resistors from the transmission line. Each pass gate is set to be ON or OFF to provide a selected termination resistance value to the transmission line. The termination resistance of the resistor network can be increased or decreased to match the impedance of different transmission lines. The termination resistance can also be varied to compensate for changes in the resistors caused by temperature variations on the integrated circuit or other factors.
摘要翻译：片内阻抗终端电路可以动态调节，以匹配传输线阻抗值。集成电路上的终端电阻网络为耦合到IO引脚的传输线提供终端阻抗。终端电阻器串联耦合并且彼此并联。通孔与电阻耦合。传递门单独接通或断开以将电阻与传输线耦合或去耦。每个通过门被设置为ON或OFF以向传输线提供所选择的终端电阻值。可以增加或减少电阻网络的终端电阻以匹配不同传输线路的阻抗。也可以改变终端电阻以补偿由集成电路上的温度变化或其他因素引起的电阻器的变化。

5. 发明授权

US06888370B1 Dynamically adjustable termination impedance control techniques 有权
标题翻译：动态可调终端阻抗控制技术
公开(公告)号：US06888370B1
公开(公告)日：2005-05-03
申请号：US10645932
申请日：2003-08-20
申请人： Mei Luo , Wilson Wong , Sergey Shumarayev
发明人： Mei Luo , Wilson Wong , Sergey Shumarayev
IPC分类号： H03K19/0175 , H04L25/02
CPC分类号： H04L25/0278
摘要： The on-chip impedance termination circuits can be dynamically adjusted to match transmission line impedance values. A network of termination resistors on an integrated circuit provides termination impedance to a transmission line coupled to an IO pin. The termination resistors are coupled in series and in parallel with each other. Pass gates are coupled to the resistors. The pass gates are individually turned ON or OFF to couple or decouple resistors from the transmission line. Each pass gate is set to be ON or OFF to provide a selected termination resistance value to the transmission line. The termination resistance of the resistor network can be increased or decreased to match the impedance of different transmission lines. The termination resistance can also be varied to compensate for changes in the resistors caused by temperature variations on the integrated circuit or other factors.
摘要翻译：片内阻抗终端电路可以动态调节，以匹配传输线阻抗值。集成电路上的终端电阻网络为耦合到IO引脚的传输线提供终端阻抗。终端电阻器串联耦合并且彼此并联。通孔与电阻耦合。传递门单独接通或断开以将电阻与传输线耦合或去耦。每个通过门被设置为ON或OFF以向传输线提供所选择的终端电阻值。可以增加或减少电阻网络的终端电阻以匹配不同传输线路的阻抗。也可以改变终端电阻以补偿由集成电路上的温度变化或其他因素引起的电阻器的变化。

6. 发明授权

US07855576B1 Versatile common-mode driver methods and apparatus 有权
标题翻译：多用途共模驱动方法和装置
公开(公告)号：US07855576B1
公开(公告)日：2010-12-21
申请号：US11407444
申请日：2006-04-19
申请人： Mei Luo , Sergey Shumarayev , Thungoc M. Tran , Simardeep Maangat
发明人： Mei Luo , Sergey Shumarayev , Thungoc M. Tran , Simardeep Maangat
IPC分类号： H03K19/0175 , H03K19/003
CPC分类号： H03K19/017509 , H04L25/0276
摘要： Methods and apparatus are provided for selectively setting a CM voltage for a transceiver, reducing the effect of current mismatch, and generating a voltage step that can be used for receiver detection. A circuit of the invention can include voltage generator circuitry operable to generate a plurality of voltage signals of substantially different voltages. The circuit can also include multiplexer circuitry with voltage inputs coupled to the voltage signals. The multiplexer circuitry can be operable to select a reference signal from among the voltage inputs. In addition, the circuit can include operational amplifier (“op-amp”) circuitry with a first input coupled to the reference signal and a second input coupled to an output signal of the op-amp circuitry.
摘要翻译：提供了用于选择性地设置收发器的CM电压的方法和装置，减少电流失配的影响，以及产生可用于接收机检测的电压步骤。本发明的电路可以包括可操作以产生具有实质上不同电压的多个电压信号的电压发生器电路。电路还可以包括具有耦合到电压信号的电压输入的多路复用器电路。多路复用器电路可以用于从电压输入中选择参考信号。此外，电路可以包括运算放大器（“运算放大器”）电路，其中耦合到参考信号的第一输入和耦合到运放电路的输出信号的第二输入。

7. 发明授权

US07557615B1 High-speed serial data transmitter architecture 有权
标题翻译：高速串行数据发射机架构
公开(公告)号：US07557615B1
公开(公告)日：2009-07-07
申请号：US12069353
申请日：2008-02-08
申请人： Thungoc M. Tran , Sergey Yuryevich Shumarayev , Kazi Asaduzzaman , Wilson Wong , Mei Luo , Rakesh H. Patel
发明人： Thungoc M. Tran , Sergey Yuryevich Shumarayev , Kazi Asaduzzaman , Wilson Wong , Mei Luo , Rakesh H. Patel
IPC分类号： H03K19/094 , H03K3/00
CPC分类号： H03K19/17744 , H03K19/17732 , H04B1/005 , H04L25/028
摘要： Serial data transmitter circuitry on a PLD includes a number of features that enable the transmitter to support many different communication protocols under a wide range of circuit conditions. Examples of features that the transmitter may include are (1) multiple pre-emphasis circuits of selectable strength and polarity, (2) selectable VOD, (3) selectable slew rate, (4) calibratable termination, (5) selectable common mode voltage, and (6) electrical idle mode.
摘要翻译： PLD上的串行数据发射机电路包括许多功能，使得发射机能够在广泛的电路条件下支持许多不同的通信协议。发射机可以包括的特征的示例是（1）可选强度和极性的多个预加重电路，（2）可选择的VOD，（3）可选择的转换速率，（4）可校准终止，（5）可选择的共模电压，和（6）电气空闲模式。

8. 发明授权

US07355449B1 High-speed serial data transmitter architecture 有权
标题翻译：高速串行数据发射机架构
公开(公告)号：US07355449B1
公开(公告)日：2008-04-08
申请号：US11345709
申请日：2006-02-01
申请人： Thungoc Tran , Sergey Yuryevich Shumarayev , Kazi Asaduzzaman , Wilson Wong , Mei Luo , Rakesh Patel
发明人： Thungoc Tran , Sergey Yuryevich Shumarayev , Kazi Asaduzzaman , Wilson Wong , Mei Luo , Rakesh Patel
IPC分类号： H03K19/094
CPC分类号： H03K19/17744 , H03K19/17732 , H04B1/005 , H04L25/028
摘要： Serial data transmitter circuitry on a PLD includes a number of features that enable the transmitter to support many different communication protocols under a wide range of circuit conditions. Examples of features that the transmitter may include are (1) multiple pre-emphasis circuits of selectable strength and polarity, (2) selectable VOD, (3) selectable slew rate, (4) calibratable termination, (5) selectable common mode voltage, and (6) electrical idle mode.
摘要翻译： PLD上的串行数据发射机电路包括许多功能，使得发射机能够在广泛的电路条件下支持许多不同的通信协议。发射机可以包括的特征的示例是（1）可选强度和极性的多个预加重电路，（2）可选择的VOD，（3）可选择的转换速率，（4）可校准终止，（5）可选择的共模电压，和（6）电气空闲模式。

9. 发明申请

US20220135578A1 Preparation and Application of A 5-bromoquinazoline Derivative 有权
公开(公告)号：US20220135578A1
公开(公告)日：2022-05-05
申请号：US17488317
申请日：2021-09-29
申请人： Mei Luo
发明人： Mei Luo
IPC分类号： C07D487/10
摘要： A 5-bromoquinazoline derivative (I), structural formula thereof is as follows: the synthesis method thereof comprises weighing 1.18 g of 5-bromoisatin, 2.5503 g of ammonium formate and 100 ml of absolute methanol in a 250 mL round-bottom flask, heating, stirring and refluxing for 48 h, stopping reaction, rotating to obtain 1.6033 g of filter residue crude product, carrying out column chromatography separation by using dichloromethane and absolute methanol according to a volume ratio of 1:1, and obtaining a target crystal compound I; the application of the 5-bromoquinazoline derivative compound crystal (I), as a catalyst has a good catalytic effect in nitrile silicification reaction of benzaldehyde and auto-polymerization reaction of benzophenone hydrazone, the conversion rates thereof respectively reach 39% and 76%, and the crystal (I) can be used as an anti-cancer reagent which has certain anti-cancer activity of breast cancer, liver cancer and lung cancer.

10. 发明授权

US08416898B1 Techniques for decision feedback equalization that reduce variations in the tap weight 有权
标题翻译：用于决策反馈均衡的技术，可减少抽头重量的变化
公开(公告)号：US08416898B1
公开(公告)日：2013-04-09
申请号：US12483151
申请日：2009-06-11
申请人： Mei Luo , Thungoc M. Tran , Tim Tri Hoang , Tin H. Lai
发明人： Mei Luo , Thungoc M. Tran , Tim Tri Hoang , Tin H. Lai
IPC分类号： H04B1/10
CPC分类号： H04L25/03057 , H04L2025/03592
摘要： A circuit includes a receiver circuit, a decision feedback equalizer circuit, and a control loop circuit. The receiver circuit receives a data signal and generates an input signal in response to the data signal. The decision feedback equalizer circuit includes a tap driver and a first current source coupled to the tap driver. The tap driver drives the input signal based on a tap weight. The control loop circuit varies a current through the first current source based on variations in the input signal to reduce changes in the tap weight that are caused by the variations in the input signal.
摘要翻译：电路包括接收器电路，判决反馈均衡器电路和控制回路电路。接收器电路接收数据信号并响应于数据信号产生输入信号。判决反馈均衡器电路包括抽头驱动器和耦合到抽头驱动器的第一电流源。抽头驱动器根据抽头重量驱动输入信号。控制回路电路基于输入信号的变化改变通过第一电流源的电流，以减少由输入信号的变化引起的抽头重量的变化。

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