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1. 发明申请

US20050052200A1 CALIBRATION METHODS AND CIRCUITS FOR OPTIMIZED ON-DIE TERMINATION 有权
标题翻译：校准方法和优化电路终端的电路
公开(公告)号：US20050052200A1
公开(公告)日：2005-03-10
申请号：US10657605
申请日：2003-09-08
申请人： Huy Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003 , H04L25/02
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

2. 发明申请

US20070290714A1 Calibration methods and circuits to calibrate drive current and termination impedance 有权
标题翻译：用于校准驱动电流和终端阻抗的校准方法和电路
公开(公告)号：US20070290714A1
公开(公告)日：2007-12-20
申请号：US11893804
申请日：2007-08-17
申请人： Huy Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

3. 发明申请

US20070085562A1 Clock methods and circuits for optimized on-die termination 有权
标题翻译：用于优化片上终端的时钟方法和电路
公开(公告)号：US20070085562A1
公开(公告)日：2007-04-19
申请号：US11639119
申请日：2006-12-13
申请人： Huy Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了便于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

4. 发明申请

US20050174143A1 Calibration methods and circuits for optimized on-die termination 有权
公开(公告)号：US20050174143A1
公开(公告)日：2005-08-11
申请号：US11100949
申请日：2005-04-06
申请人： Huy Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003 , H04L25/02
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

5. 发明申请

US20130021056A1 Calibration Methods and Circuits to Calibrate Drive Current and Termination Impedance 有权
公开(公告)号：US20130021056A1
公开(公告)日：2013-01-24
申请号：US13626555
申请日：2012-09-25
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

6. 发明授权

US07525338B2 Calibration methods and circuits for optimized on-die termination 有权
标题翻译：用于优化片上端接的校准方法和电路
公开(公告)号：US07525338B2
公开(公告)日：2009-04-28
申请号：US11639119
申请日：2006-12-13
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了便于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

7. 发明授权

US09191243B2 Calibration methods and circuits to calibrate drive current and termination impedance 有权
公开(公告)号：US09191243B2
公开(公告)日：2015-11-17
申请号：US13626555
申请日：2012-09-25
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003 , H04L25/02 , H03K19/00 , H03K19/01
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.

8. 发明申请

US20110193591A1 Calibration Methods and Circuits to Calibrate Drive Current and Termination Impedance 有权
标题翻译：用于校准驱动电流和终端阻抗的校准方法和电路
公开(公告)号：US20110193591A1
公开(公告)日：2011-08-11
申请号：US13088964
申请日：2011-04-18
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

9. 发明授权

US08278968B2 Calibration methods and circuits to calibrate drive current and termination impedance 有权
标题翻译：用于校准驱动电流和终端阻抗的校准方法和电路
公开(公告)号：US08278968B2
公开(公告)日：2012-10-02
申请号：US13088964
申请日：2011-04-18
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K19/003
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

10. 发明申请

US20100259295A1 Calibration Methods and Circuits to Calibrate Drive Current and Termination Impedance 有权
标题翻译：用于校准驱动电流和终端阻抗的校准方法和电路
公开(公告)号：US20100259295A1
公开(公告)日：2010-10-14
申请号：US12819939
申请日：2010-06-21
申请人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
发明人： Huy M. Nguyen , Vijay Gadde , Benedict Lau
IPC分类号： H03K17/16
CPC分类号： H03K19/0005 , H03K5/24 , H03K19/01 , H03K21/08 , H04L25/0278 , H04L25/0298
摘要： Described are on-die termination (ODT) systems and methods that facilitate high-speed communication between a driver die and a receiver die interconnected via one or more signal transmission lines. An ODT control system in accordance with one embodiment calibrates and maintains termination resistances and drive currents to produce optimal output swing voltages. Comparison circuitry employed to calibrate the reference resistance is also used to calibrate the drive current. Termination elements in some embodiments are divided into two adjustable resistive portions, both of which are designed to minimize capacitive loading. One portion is optimized to produce a relatively high range of adjustment, while the other is optimized for fine-tuning and glitch-free switching.
摘要翻译：描述了用于通过一个或多个信号传输线路互连的驱动器管芯和接收器管芯之间的高速通信的管芯端接（ODT）系统和方法。根据一个实施例的ODT控制系统校准并维持终端电阻和驱动电流以产生最佳输出摆幅电压。用于校准参考电阻的比较电路也用于校准驱动电流。一些实施例中的终端元件被分成两个可调节的电阻部分，它们都被设计成最小化容性负载。一部分被优化以产生相对较高的调节范围，而另一部分被优化用于微调和无故障切换。

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