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1. 发明授权

US07570037B2 Hybrid control methods for digital pulse width modulator (DPWM) 失效
标题翻译：数字脉宽调制器（DPWM）的混合控制方法
公开(公告)号：US07570037B2
公开(公告)日：2009-08-04
申请号：US11561104
申请日：2006-11-17
申请人： Jian Li , Dong S. Ha , Yang Qiu , Ming Xu , Fred C. Lee
发明人： Jian Li , Dong S. Ha , Yang Qiu , Ming Xu , Fred C. Lee
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/157
摘要： A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a switching cycle within acceptable limits for variation of the switching cycle frequency or by using two relatively low frequency clocks of slightly differing frequency and selecting pulse leading and trailing edges in accordance with pulses output therefrom. A fine resolution of duty cycle adjustment can thus be provided corresponding to a much higher effective clock frequency than is actually used; allowing improvement of efficiency of clock and switching circuits, particularly in switching voltage regulator applications.
摘要翻译：数字脉冲宽度调制器利用时钟频率通过对脉冲信号的每个状态使用恒定数量的时隙来实现非常精细的占空比分辨率，并且在开关周期内将开关周期中的时隙数量改变为可接受的开关周期变化的限度内或通过使用两个稍微不同频率的相对低频的时钟，并根据从其输出的脉冲选择脉冲前沿和后沿。因此，可以对应于比实际使用的更高的有效时钟频率提供精确的占空比调整分辨率; 允许提高时钟和开关电路的效率，特别是在开关稳压器应用中。

2. 发明授权

US07705577B2 Digital power supply control 失效
标题翻译：数字电源控制
公开(公告)号：US07705577B2
公开(公告)日：2010-04-27
申请号：US11755331
申请日：2007-05-30
申请人： Jian Li , Yang Qiu , Ming Xu , Fred C. Lee
发明人： Jian Li , Yang Qiu , Ming Xu , Fred C. Lee
IPC分类号： G05F1/00
CPC分类号： H02M3/157
摘要： A switched voltage regulator provides improved regulation at a lower clock rate/sampling frequency (e.g. several orders of magnitude lower than would be required for comparable regulation) while using a low resolution digital pulse width modulator such that limit cycle oscillations occur (and thus of low cost and complexity and small size) by limiting the amplitude of limit cycle oscillations which therefore need not be avoided by more complex arrangements which are not commercially feasible. Limiting of amplitude of limit cycle oscillations is achieved by adding essentially a digitized ripple voltage signal corresponding to the difference between the output of the voltage regulator and an average output of the voltage regulator as an input to the digital pulse width modulator. Performance of this arrangement may be enhanced by adding a ramp signal to the digitized ripple voltage signal and even further enhanced by limiting the ramp signal to a range which corresponds to steady state operation but not transients.
摘要翻译：开关电压调节器在使用低分辨率数字脉冲宽度调制器时，以较低的时钟频率/采样频率（例如比可比较的调节要求的数量级低几个数量级）提供改进的调节器，从而发生极限循环振荡（从而降低成本和复杂性以及小尺寸）通过限制极限循环振荡的幅度，因此不可避免地由于商业上不可行的更复杂的布置。极限循环振荡幅度的限制通过将基本上相当于电压调节器的输出与调压器的平均输出之间的差值相对应的数字化纹波电压信号作为数字脉宽调制器的输入来实现。可以通过向数字化纹波电压信号添加斜坡信号并且甚至通过将斜坡信号限制到对应于稳态操作但不是瞬变的范围来进一步增强该布置的性能。

3. 发明申请

US20080298090A1 Digital Constant On-Time Power Supply Control 失效
标题翻译：数字恒定导通时间电源控制
公开(公告)号：US20080298090A1
公开(公告)日：2008-12-04
申请号：US11755331
申请日：2007-05-30
申请人： Jian Li , Yang Qiu , Ming Xu , Fred C. Lee
发明人： Jian Li , Yang Qiu , Ming Xu , Fred C. Lee
IPC分类号： H02M3/335
CPC分类号： H02M3/157
摘要： A switched voltage regulator provides improved regulation at a lower clock rate/sampling frequency (e.g. several orders of magnitude lower than would be required for comparable regulation) while using a low resolution digital pulse width modulator such that limit cycle oscillations occur (and thus of low cost and complexity and small size) by limiting the amplitude of limit cycle oscillations which therefore need not be avoided by more complex arrangements which are not commercially feasible. Limiting of amplitude of limit cycle oscillations is achieved by adding essentially a digitized ripple voltage signal corresponding to the difference between the output of the voltage regulator and an average output of the voltage regulator as an input to the digital pulse width modulator. Performance of this arrangement may be enhanced by adding a ramp signal to the digitized ripple voltage signal and even further enhanced by limiting the ramp signal to a range which corresponds to steady state operation but not transients.
摘要翻译：开关电压调节器在使用低分辨率数字脉冲宽度调制器时，以较低的时钟频率/采样频率（例如比可比较的调节要求的数量级低几个数量级）提供改进的调节器，从而发生极限循环振荡（从而降低成本和复杂性以及小尺寸）通过限制极限循环振荡的幅度，因此不可避免地由于商业上不可行的更复杂的布置。极限循环振荡幅度的限制通过将基本上相当于电压调节器的输出与调压器的平均输出之间的差值相对应的数字化纹波电压信号作为数字脉宽调制器的输入来实现。可以通过向数字化纹波电压信号添加斜坡信号并且甚至通过将斜坡信号限制到对应于稳态操作但不是瞬变的范围来进一步增强该布置的性能。

4. 发明申请

US20080116871A1 HYBRID CONTROL METHODS FOR DIGITAL PULSE WIDTH MODULATOR (DPWM) 失效
标题翻译：数字脉宽调制器混合控制方法（DPWM）
公开(公告)号：US20080116871A1
公开(公告)日：2008-05-22
申请号：US11561104
申请日：2006-11-17
申请人： Jian Li , Dong S. Ha , Yang Qiu , Ming Xu , Fred C. Lee
发明人： Jian Li , Dong S. Ha , Yang Qiu , Ming Xu , Fred C. Lee
IPC分类号： G05F1/00
CPC分类号： H02M3/157
摘要： A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a switching cycle within acceptable limits for variation of the switching cycle frequency or by using two relatively low frequency clocks of slightly differing frequency and selecting pulse leading and trailing edges in accordance with pulses output therefrom. A fine resolution of duty cycle adjustment can thus be provided corresponding to a much higher effective clock frequency than is actually used; allowing improvement of efficiency of clock and switching circuits, particularly in switching voltage regulator applications.
摘要翻译：数字脉冲宽度调制器利用时钟频率通过对脉冲信号的每个状态使用恒定数量的时隙来实现非常精细的占空比分辨率，并且在开关周期内将开关周期中的时隙数量改变为可接受的开关周期变化的限度内或通过使用两个稍微不同频率的相对低频的时钟，并根据从其输出的脉冲选择脉冲前沿和后沿。因此，可以对应于比实际使用的更高的有效时钟频率提供精确的占空比调整分辨率; 允许提高时钟和开关电路的效率，特别是在开关稳压器应用中。

5. 发明授权

US12007155B2 Ice cube tray box for facilitating ice making and ice removing 有权
公开(公告)号：US12007155B2
公开(公告)日：2024-06-11
申请号：US17702800
申请日：2022-03-24
申请人： Jian Li
发明人： Jian Li
IPC分类号： F25C1/24
CPC分类号： F25C1/24 , F25C2400/06
摘要： An ice cube tray box for facilitating ice making and ice removing, which includes a box body, a cover body arranged at an open end of the box body, and an ice cube tray body arranged inside the box body, wherein a vertical upward rib assembly is arranged on an inner wall of the box body, a notch assembly matched with the rib assembly in use is arranged on an outer edge of the ice cube tray body, an ice removing plate for facilitating ice removing is clamped and arranged on the inner side of the cover body, and ice knocking columns are integrally arranged on the ice removing plate.

6. 发明公开

US20240016311A1 Novel Baby Holder 审中-公开
公开(公告)号：US20240016311A1
公开(公告)日：2024-01-18
申请号：US17865496
申请日：2022-07-15
申请人： Jian Li
发明人： Jian Li
IPC分类号： A47D1/04
CPC分类号： A47D1/04
摘要： The present invention is a novel baby holder with a main body configured having a central cavity constructed and arrange to hold a baby with the main cavity having a front pair of retractable legs and a rear pair of retractable legs.

7. 发明授权

US11647643B2 Hole-blocking materials for organic light emitting diodes 有权
公开(公告)号：US11647643B2
公开(公告)日：2023-05-09
申请号：US16756207
申请日：2018-10-17
申请人： Jian Li
发明人： Jian Li
IPC分类号： H01L51/50 , H01L51/00
CPC分类号： H01L51/5096 , H01L51/0072 , H01L51/0074 , H01L51/0081 , H01L51/0087 , H01L51/5016 , H01L51/5056 , H01L51/5072 , H01L2251/552
摘要： An organic light emitting device including an emissive layer including a blue phosphorescent emitter, an electron transport layer, and a hole blocking layer between the emissive layer and the electron transport layer, wherein the hole blocking layer comprises a tetradentate palladium complex.

8. 发明授权

US11441521B2 Vaned valve for exhaust gas recirculation line 有权
公开(公告)号：US11441521B2
公开(公告)日：2022-09-13
申请号：US16627309
申请日：2017-08-15
申请人： VOLVO TRUCK CORPORATION , Jian Li , John Lowe
发明人： Jian Li , John Lowe
IPC分类号： F02M26/71 , F02M26/68 , F02M26/16 , F02M26/21 , F02M26/53 , F02M26/69
摘要： A valve for m exhaust gas recirculation Mae in an engine includes a first barrel connectable to a first group of cylinders, a second barrel connectable to a second group of cylinders, and a center barrel between the first and second barrels and connectable to an intake of the engine, A poppet valve with two valve heads mounted on a valve stem is provided to open and close openings between the first and second barrels, with one of the valve beads of the poppet valve opening into the center barrel Vanes are provided in the center barrel to direct flow from the opening by the valve bead that opens into the center barrel toward the outlet opening.

9. 发明授权

US10110693B2 System and method for content and application acceleration in a wireless communications system 有权
公开(公告)号：US10110693B2
公开(公告)日：2018-10-23
申请号：US13400527
申请日：2012-02-20
申请人： Wenzhe Zhou , Jim Zhao , Jian Li
发明人： Wenzhe Zhou , Jim Zhao , Jian Li
IPC分类号： G06F15/167 , H04L29/08 , H04L29/06 , H04L12/801
摘要： Various methods and communications devices to reduce a bandwidth utilization of a backhaul link in a wireless communications system are provided. By way of example, bandwidth utilization is reduced by relegating the compression of data to the downlink transmission, storing only reference keys in the cache of the transmitting device, and taking advantage of an asymmetrical cache structure between communicating devices. Support is provided for a user equipment to move from one node to another node.

10. 外观设计

USD829389S1 Retractable leash handle for animals 有权
公开(公告)号：USD829389S1
公开(公告)日：2018-09-25
申请号：US29598111
申请日：2017-03-23
申请人： Zhangli Lan , Jian Li , Yukun Yang , Chunyan Yang
设计人： Zhangli Lan , Jian Li , Yukun Yang , Chunyan Yang

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