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    • 1. 发明授权
    • Automatic frequency calibration of a multi-LCVCO phase locked loop with adaptive thresholds and programmable center control voltage
    • 具有自适应阈值和可编程中心控制电压的多LCVCO锁相环的自动频率校准
    • US08508308B2
    • 2013-08-13
    • US13223418
    • 2011-09-01
    • Yikui Jen DongFreeman Y. ZhongTai JingChaitanya Palusa
    • Yikui Jen DongFreeman Y. ZhongTai JingChaitanya Palusa
    • H03L7/085
    • H03L7/08
    • Described embodiments provide a method of calibrating, by a calibration engine, a phase-locked loop (PLL) having one or more adjustable oscillators. The method includes entering a calibration mode of the PLL. The PLL is set to an initial state, thereby selecting one of the adjustable oscillators for calibration, an initial threshold window, and an initial tuning band of the selected adjustable oscillator. If the control signal of the selected adjustable oscillator is not within the initial threshold window, the calibration engine iteratively adjusts at least one of: (i) the selected tuning band of the selected adjustable oscillator, (ii) the selected adjustable oscillator, and (iii) the selected threshold window until the control signal of the selected adjustable oscillator is within the adjusted threshold window. If the control signal is within the threshold window, the one or more calibration settings of the PLL are stored and used to set the PLL operation.
    • 所描述的实施例提供了一种通过校准引擎校准具有一个或多个可调节振荡器的锁相环(PLL)的方法。 该方法包括进入PLL的校准模式。 PLL被设置为初始状态,从而选择用于校准的可调振荡器之一,初始阈值窗口和所选择的可调振荡器的初始调谐频带。 如果所选择的可调节振荡器的控制信号不在初始阈值窗口内,则校准引擎迭代地调整以下至少一个:(i)所选择的可调节振荡器的选定调谐带,(ii)所选择的可调振荡器和( iii)所选择的阈值窗口,直到所选择的可调节振荡器的控制信号在调整的阈值窗口内。 如果控制信号在阈值窗口内,PLL的一个或多个校准设置被存储并用于设置PLL操作。
    • 2. 发明申请
    • AUTOMATIC FREQUENCY CALIBRATION OF A MULTI-LCVCO PHASE LOCKED LOOP WITH ADAPTIVE THRESHOLDS AND PROGRAMMABLE CENTER CONTROL VOLTAGE
    • 具有自适应阈值和可编程中心控制电压的多LCVCO相锁定环路的自动频率校准
    • US20130057325A1
    • 2013-03-07
    • US13223418
    • 2011-09-01
    • Yikui Jen DongFreeman Y. ZhongTai JingChaitanya Palusa
    • Yikui Jen DongFreeman Y. ZhongTai JingChaitanya Palusa
    • H03L7/08H03L7/099
    • H03L7/08
    • Described embodiments provide a method of calibrating, by a calibration engine, a phase-locked loop (PLL) having one or more adjustable oscillators. The method includes entering a calibration mode of the PLL. The PLL is set to an initial state, thereby selecting one of the adjustable oscillators for calibration, an initial threshold window, and an initial tuning band of the selected adjustable oscillator. If the control signal of the selected adjustable oscillator is not within the initial threshold window, the calibration engine iteratively adjusts at least one of: (i) the selected tuning band of the selected adjustable oscillator, (ii) the selected adjustable oscillator, and (iii) the selected threshold window until the control signal of the selected adjustable oscillator is within the adjusted threshold window. If the control signal is within the threshold window, the one or more calibration settings of the PLL are stored and used to set the PLL operation.
    • 所描述的实施例提供了一种通过校准引擎校准具有一个或多个可调节振荡器的锁相环(PLL)的方法。 该方法包括进入PLL的校准模式。 PLL被设置为初始状态,从而选择用于校准的可调振荡器之一,初始阈值窗口和所选择的可调振荡器的初始调谐频带。 如果所选择的可调节振荡器的控制信号不在初始阈值窗口内,则校准引擎迭代地调整以下至少一个:(i)所选择的可调节振荡器的选定调谐带,(ii)所选择的可调振荡器和( iii)所选择的阈值窗口,直到所选择的可调节振荡器的控制信号在调整的阈值窗口内。 如果控制信号在阈值窗口内,PLL的一个或多个校准设置被存储并用于设置PLL操作。
    • 3. 发明授权
    • PVT consistent PLL incorporating multiple LCVCOs
    • PVT一致的PLL结合了多个LC​​VCO
    • US08432229B2
    • 2013-04-30
    • US13179653
    • 2011-07-11
    • Yikui Jen DongFreeman Y. Zhong
    • Yikui Jen DongFreeman Y. Zhong
    • H03B2201/025H03B2201/02
    • H03L7/18H03B5/1212H03B5/1228H03B5/1253H03B5/1265H03J2200/10H03L7/0891
    • In described embodiments, a wide toning-range (WTR) inductive-capacitive (LC) phase locked loop (PLL) provides for a large range of differing oscillation frequencies with a set of individual LC voltage controlled oscillator (VCO) paths. The output of each individual wide range LCVCO path is provided to a multiplexor (MUX), whose output is selected based on a control signal from, for example, a device controller. Each of the set of individual wide range LCVCO paths includes a switch that couples the LCVCO to a loop filter of a voltage tuning module, wherein each switch also receives the control signal to disable or enable the LCVCO path when providing the output signal from the MUX. Each switch is configured so as to minimize leakage current drawn by the LCVCO when disabled, and to reduce or eliminate effects of input capacitance of each dormant LCVCO to the loop dynamics of the PLL.
    • 在所描述的实施例中,宽调光范围(WTR)电感 - 电容(LC)锁相环(PLL)通过一组单独的LC压控振荡器(VCO)路径提供大范围的不同振荡频率。 每个单独的宽范围LCVCO路径的输出被提供给多路复用器(MUX),其多路器(MUX)的输出是基于来自例如设备控制器的控制信号来选择的。 单个宽范围LCVCO路径中的每一个包括将LCVCO耦合到电压调谐模块的环路滤波器的开关,其中当从MUX提供输出信号时,每个开关还接收控制信号以禁用或启用LCVCO路径 。 每个开关被配置为使得禁用时LCVCO吸收的漏电流最小化,并减少或消除每个休眠LCVCO的输入电容对PLL环路动态的影响。
    • 4. 发明申请
    • PVT CONSISTENT PLL INCORPORATING MULTIPLE LCVCOS
    • PVT一致性PLL包含多个LCVCOS
    • US20120262238A1
    • 2012-10-18
    • US13179653
    • 2011-07-11
    • Yikui Jen DongFreeman Y. Zhong
    • Yikui Jen DongFreeman Y. Zhong
    • H03L7/08H03B5/08
    • H03L7/18H03B5/1212H03B5/1228H03B5/1253H03B5/1265H03J2200/10H03L7/0891
    • In described embodiments, a wide toning-range (WTR) inductive-capacitive (LC) phase locked loop (PLL) provides for a large range of differing oscillation frequencies with a set of individual LC voltage controlled oscillator (VCO) paths. The output of each individual wide range LCVCO path is provided to a multiplexor (MUX), whose output is selected based on a control signal from, for example, a device controller. Each of the set of individual wide range LCVCO paths includes a switch that couples the LCVCO to a loop filter of a voltage tuning module, wherein each switch also receives the control signal to disable or enable the LCVCO path when providing the output signal from the MUX. Each switch is configured so as to minimize leakage current drawn by the LCVCO when disabled, and to reduce or eliminate effects of input capacitance of each dormant LCVCO to the loop dynamics of the PLL.
    • 在所描述的实施例中,宽调光范围(WTR)电感 - 电容(LC)锁相环(PLL)通过一组单独的LC压控振荡器(VCO)路径提供大范围的不同振荡频率。 每个单独的宽范围LCVCO路径的输出被提供给多路复用器(MUX),其多路器(MUX)的输出是基于来自例如设备控制器的控制信号来选择的。 单个宽范围LCVCO路径中的每一个包括将LCVCO耦合到电压调谐模块的环路滤波器的开关,其中当从MUX提供输出信号时,每个开关还接收控制信号以禁用或启用LCVCO路径 。 每个开关被配置为使得禁用时LCVCO吸收的漏电流最小化,并减少或消除每个休眠LCVCO的输入电容对PLL环路动态的影响。
    • 6. 发明授权
    • High-swing differential driver using low-voltage transistors
    • 高摆幅差动驱动器采用低压晶体管
    • US08520348B2
    • 2013-08-27
    • US13335056
    • 2011-12-22
    • Yikui Jen Dong
    • Yikui Jen Dong
    • H03K17/16
    • G06F13/4086
    • A differential line driver with N-paralleled slices for driving an impedance-matched transmission line. Each driver slice is a modified H-bridge driver using low-voltage, high-speed transistors. By using a voltage-dropping first resistor in each slice, a high-voltage power supply that would normally damage the transistors can be used to power the driver and produce a differential output signal with peak-to-peak amplitudes that otherwise might not be possible. Each transistor in each driver slice has a resistor disposed between the transistor and the respective output node of the driver to enhance ESD protection of the transistors and, in combination with the first resistor, to impedance match the driver to the transmission line.
    • 具有N平行片的差分线路驱动器,用于驱动阻抗匹配传输线。 每个驱动器片是使用低电压,高速晶体管的修改后的H桥驱动器。 通过在每个片中使用降压第一电阻,可以使用通常会损坏晶体管的高压电源为驱动器供电,并产生具有峰 - 峰幅度的差分输出信号,否则可能无法实现 。 每个驱动器片中的每个晶体管具有设置在晶体管和驱动器的相应输出节点之间的电阻器,以增强晶体管的ESD保护,并与第一电阻器组合以使驱动器与传输线路匹配。
    • 7. 发明申请
    • HIGH-SWING DIFFERENTIAL DRIVER USING LOW-VOLTAGE TRANSISTORS
    • 使用低电压晶体管高速差分驱动器
    • US20130163126A1
    • 2013-06-27
    • US13335056
    • 2011-12-22
    • Yikui Jen Dong
    • Yikui Jen Dong
    • H02H9/04
    • G06F13/4086
    • A differential line driver with N-paralleled slices for driving an impedance-matched transmission line. Each driver slice is a modified H-bridge driver using low-voltage, high-speed transistors. By using a voltage-dropping first resistor in each slice, a high-voltage power supply that would normally damage the transistors can be used to power the driver and produce a differential output signal with peak-to-peak amplitudes that otherwise might not be possible. Each transistor in each driver slice has a resistor disposed between the transistor and the respective output node of the driver to enhance ESD protection of the transistors and, in combination with the first resistor, to impedance match the driver to the transmission line.
    • 具有N平行片的差分线路驱动器,用于驱动阻抗匹配传输线。 每个驱动器片是使用低电压,高速晶体管的修改后的H桥驱动器。 通过在每个切片中使用降压第一个电阻,可以使用通常会损坏晶体管的高压电源为驱动器供电,并产生具有峰 - 峰幅度的差分输出信号,否则可能无法实现 。 每个驱动器片中的每个晶体管具有设置在晶体管和驱动器的相应输出节点之间的电阻器,以增强晶体管的ESD保护,并与第一电阻器组合以使驱动器与传输线路匹配。