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1. 发明授权

US08339174B2 Apparatus, circuit and method for automatic phase-shifting pulse width modulated signal generation 有权
标题翻译：用于自动移相脉宽调制信号生成的装置，电路及方法
公开(公告)号：US08339174B2
公开(公告)日：2012-12-25
申请号：US12712930
申请日：2010-02-25
申请人： Zhiyu Yang , Dilip S , Tushar Dhayagude
发明人： Zhiyu Yang , Dilip S , Tushar Dhayagude
IPC分类号： H03K3/00
CPC分类号： H05B33/0809 , H03K3/012 , H03K7/08 , H05B33/0842
摘要： Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.
摘要翻译：公开了用于相移脉宽调制信号产生的系统，电路和方法。在一些实施例中，移相脉宽调制电路被配置为基于输入脉宽调制信号输出脉冲。脉冲相对于彼此交错，并且可以由用于在一个或多个时间段驱动发光二极管串的发光二极管驱动器接收。相移脉宽调制电路可以包括由两个基于计数器的可编程延迟块组成的基于计数器的可编程延迟子电路。

2. 发明申请

US20110204810A1 APPARATUS, CIRCUIT AND METHOD FOR AUTOMATIC PHASE-SHIFTING PULSE WIDTH MODULATED SIGNAL GENERATION 有权
标题翻译：自动相移脉宽调制信号发生装置，电路及方法
公开(公告)号：US20110204810A1
公开(公告)日：2011-08-25
申请号：US12712930
申请日：2010-02-25
申请人： Zhiyu Yang , Dilip S. , Tushar Dhayagude
发明人： Zhiyu Yang , Dilip S. , Tushar Dhayagude
IPC分类号： H05B41/16 , H03K3/00
CPC分类号： H05B33/0809 , H03K3/012 , H03K7/08 , H05B33/0842
摘要： Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.
摘要翻译：公开了用于相移脉宽调制信号产生的系统，电路和方法。在一些实施例中，移相脉宽调制电路被配置为基于输入脉宽调制信号输出脉冲。脉冲相对于彼此交错，并且可以由用于在一个或多个时间段驱动发光二极管串的发光二极管驱动器接收。相移脉宽调制电路可以包括由两个基于计数器的可编程延迟块组成的基于计数器的可编程延迟子电路。

3. 发明授权

US08581828B2 Load-aware compensation in light-emitting-diode backlight illumination systems 有权
标题翻译：发光二极管背光照明系统的负载感知补偿
公开(公告)号：US08581828B2
公开(公告)日：2013-11-12
申请号：US12772067
申请日：2010-04-30
申请人： Zhiyu Yang , Kien Vi , Dilip S , Tushar Dhayagude
发明人： Zhiyu Yang , Kien Vi , Dilip S , Tushar Dhayagude
IPC分类号： G09G3/36
CPC分类号： G09G3/342 , G09G3/3406 , G09G2320/064 , H05B33/0818 , H05B33/0827 , H05B33/0851 , Y02B20/346
摘要： System(s) and method(s) are provided for power management in an electronic display via compensation of a power source of a light-emitting-diode (LED) backlighting system. A compensation feedback loop includes a load-aware controller that receives the load condition from a dimming controller and supplies a control signal to the power source. An efficiency regulator functionally connected the backlight circuitry closes the compensation feedback loop and provides an input signal to the load-aware controller. The dimming controller implements phase-shifted pulse-modulation dimming, which based on duty cycle can establish a dimming equilibrium with two load conditions. The load aware controller includes a set of compensation blocks arranged in parallel, with a single compensation block connected to the input signal and that provides the control signal. A selector component in the load aware controller determines a compensation block to be connected to the compensation feedback loop based on the received load condition.
摘要翻译：通过补偿发光二极管（LED）背光系统的电源，为电子显示器中的电源管理提供系统和方法。补偿反馈回路包括负载感知控制器，其从调光控制器接收负载状况，并向控制电源提供控制信号。功能上连接到背光电路的效率调节器关闭补偿反馈回路并向负载感知控制器提供输入信号。调光控制器实现相移脉冲宽度调制调光，其基于占空比可以在两个负载条件下建立调光平衡。负载感知控制器包括并联布置的一组补偿块，单个补偿块连接到输入信号并提供控制信号。负载感知控制器中的选择器部件基于接收的负载条件确定要连接到补偿反馈回路的补偿块。

4. 发明申请

US20110267375A1 LOAD-AWARE COMPENSATION IN LIGHT-EMITTING-DIODE BACKLIGHT ILLUMINATION SYSTEMS 有权
标题翻译：发光二极管背光照明系统中的负载补偿
公开(公告)号：US20110267375A1
公开(公告)日：2011-11-03
申请号：US12772067
申请日：2010-04-30
申请人： Zhiyu Yang , Kien Vi , Dilip S. , Tushar Dhayagude
发明人： Zhiyu Yang , Kien Vi , Dilip S. , Tushar Dhayagude
IPC分类号： G09G5/10 , H05B37/02
CPC分类号： G09G3/342 , G09G3/3406 , G09G2320/064 , H05B33/0818 , H05B33/0827 , H05B33/0851 , Y02B20/346
摘要： System(s) and method(s) are provided for power management in an electronic display via compensation of a power source of a light-emitting-diode (LED) backlighting system. A compensation feedback loop includes a load-aware controller that receives the load condition from a dimming controller and supplies a control signal to the power source. An efficiency regulator functionally connected the backlight circuitry closes the compensation feedback loop and provides an input signal to the load-aware controller. The dimming controller implements phase-shifted pulse-modulation dimming, which based on duty cycle can establish a dimming equilibrium with two load conditions. The load aware controller includes a set of compensation blocks arranged in parallel, with a single compensation block connected to the input signal and that provides the control signal. A selector component in the load aware controller determines a compensation block to be connected to the compensation feedback loop based on the received load condition.
摘要翻译：通过补偿发光二极管（LED）背光系统的电源，为电子显示器中的电力管理提供系统和方法。补偿反馈回路包括负载感知控制器，其从调光控制器接收负载状况，并向控制电源提供控制信号。功能上连接到背光电路的效率调节器关闭补偿反馈回路并向负载感知控制器提供输入信号。调光控制器实现相移脉冲调制调光，其基于占空比可以在两个负载条件下建立调光平衡。负载感知控制器包括并联布置的一组补偿块，单个补偿块连接到输入信号并提供控制信号。负载感知控制器中的选择器部件基于接收的负载条件确定要连接到补偿反馈回路的补偿块。

5. 发明申请

US20130193859A1 Apparatus, Circuit and Method for Automatic Phase-Shifting Pulse Width Modulated Signal Generation 有权
标题翻译：用于自动移相脉宽调制信号生成的装置，电路和方法
公开(公告)号：US20130193859A1
公开(公告)日：2013-08-01
申请号：US13724649
申请日：2012-12-21
申请人： Zhiyu Yang , Dilip Sangam , Tushar Dhayagude
发明人： Zhiyu Yang , Dilip Sangam , Tushar Dhayagude
IPC分类号： H05B33/08 , H03K3/012
CPC分类号： H05B33/0809 , H03K3/012 , H03K7/08 , H05B33/0842
摘要： Systems, circuits and methods for phase-shifting pulse width modulated signal generation are disclosed. In some embodiments, a phase-shifting pulse width modulation circuit is configured to output pulses based on an input pulse width modulated signal. The pulses are staggered relative to one another, and can be received by a light-emitting diode driver for driving a light-emitting diode string at one or more time periods. The phase-shifting pulse width modulation circuit can include a counter-based programmable delay subcircuit consisting of two counter-based programmable delay blocks.
摘要翻译：公开了用于相移脉宽调制信号产生的系统，电路和方法。在一些实施例中，移相脉宽调制电路被配置为基于输入脉宽调制信号输出脉冲。脉冲相对于彼此交错，并且可以由用于在一个或多个时间段驱动发光二极管串的发光二极管驱动器接收。相移脉宽调制电路可以包括由两个基于计数器的可编程延迟块组成的基于计数器的可编程延迟子电路。

6. 发明授权

US08300740B1 Method and system for generating information for use in detecting a signal 有权
标题翻译：用于产生用于检测信号的信息的方法和系统
公开(公告)号：US08300740B1
公开(公告)日：2012-10-30
申请号：US12020327
申请日：2008-01-25
申请人： Zhiyu Yang
发明人： Zhiyu Yang
IPC分类号： H04B1/707
CPC分类号： H04B1/711 , H04L1/206
摘要： In a method for generating a signal quality indicator, a correlation signal is generated from a received signal and a spreading sequence. A magnitude signal is generated from the correlation signal. A time-domain averaged signal is generated based on the magnitude signal and at least a first time delayed version of the magnitude signal delayed by at least one symbol period. A peak-to-average signal is generated based on the time-domain averaged signal.
摘要翻译：在用于产生信号质量指示符的方法中，从接收信号和扩展序列产生相关信号。从相关信号产生幅度信号。基于幅度信号和延迟至少一个符号周期的幅度信号的至少第一时间延迟版本来生成时域平均信号。基于时域平均信号生成峰均信号。

7. 发明授权

US08275323B1 Clear-channel assessment in 40 MHz wireless receivers 有权
标题翻译： 40 MHz无线接收机的清晰通道评估
公开(公告)号：US08275323B1
公开(公告)日：2012-09-25
申请号：US11827958
申请日：2007-07-13
申请人： Kedar Shirali , Atul Salhotra , Zhiyu Yang
发明人： Kedar Shirali , Atul Salhotra , Zhiyu Yang
IPC分类号： H04B17/00
CPC分类号： H04W72/04 , H04B17/318 , H04W28/04 , H04W74/085
摘要： A system including an activity sensing module to sense RF activity in first and second sub-channels of a communication channel of a first wireless network. N adjacent channel interference (ACI) filter modules arranged in parallel receive signals from N antennas, respectively, filter out signals in channels adjacent to the communication channel, and generate N filtered signals, respectively, where N>2. The activity sensing module generates control signals based on the N filtered signals. A channel identification module processes the control signals, and determines that both of the first and second sub-channels are available when the RF activity originating from a second wireless network is not present in both of the first and second sub-channels, and that the first sub-channel is available when the RF activity originating from the second wireless network is present only in the second sub-channel and is less than or equal to a predetermined threshold.
摘要翻译：一种系统，包括用于感测第一无线网络的通信信道的第一和第二子信道中的RF活动的活动感测模块。 N个天线并行布置的N个相邻信道干扰（ACI）滤波器模块分别接收与通信信道相邻的信道中的信号，并分别产生N个滤波信号，其中N≥2。活动感测模块根据N个滤波信号产生控制信号。信道识别模块处理控制信号，并且当源自第二无线网络的RF活动不存在于第一和第二子信道中时，确定第一和第二子信道都可用，并且当来自第二无线网络的RF活动仅在第二子信道中存在且小于或等于预定阈值时，第一子信道可用。

8. 发明授权

US08208571B1 Method for detecting a periodic signal 有权
标题翻译：用于检测周期信号的方法
公开(公告)号：US08208571B1
公开(公告)日：2012-06-26
申请号：US13175476
申请日：2011-07-01
申请人： Zhiyu Yang
发明人： Zhiyu Yang
IPC分类号： H04K1/10 , H04L27/00 , H04J13/00
CPC分类号： H04L27/2676 , H04H40/18 , H04L27/2655
摘要： In detecting a signal, angle information is generated based on a complex signal having a periodic portion. An autocorrelation signal is generated based on the angle information and not based on magnitude information associated with the complex signal. The periodic portion is detected based on the autocorrelation signal.
摘要翻译：在检测信号时，基于具有周期性部分的复数信号产生角度信息。基于角度信息生成自相关信号，而不是基于与复信号相关联的幅度信息。基于自相关信号检测周期部分。

9. 发明授权

US08605834B1 Method and system for generating information for use in detecting a signal 失效
标题翻译：用于产生用于检测信号的信息的方法和系统
公开(公告)号：US08605834B1
公开(公告)日：2013-12-10
申请号：US13619617
申请日：2012-09-14
申请人： Zhiyu Yang
发明人： Zhiyu Yang
IPC分类号： H04B1/707 , H03D1/00
CPC分类号： H04B1/711 , H04L1/206
摘要： In a method for generating a signal quality indicator, a correlation signal is generated from a received signal and a spreading sequence. A magnitude signal is generated from the correlation signal. A time-domain averaged signal is generated based on the magnitude signal and at least a first time delayed version of the magnitude signal delayed by at least one symbol period. A peak-to-average signal is generated based on the time-domain averaged signal.
摘要翻译：在用于产生信号质量指示符的方法中，从接收信号和扩展序列产生相关信号。从相关信号产生幅度信号。基于幅度信号和延迟至少一个符号周期的幅度信号的至少第一时间延迟版本来生成时域平均信号。基于时域平均信号生成峰均信号。

10. 发明授权

US08254514B1 Early-late gate timing recovery 有权
标题翻译：早期门时序恢复
公开(公告)号：US08254514B1
公开(公告)日：2012-08-28
申请号：US11951725
申请日：2007-12-06
申请人： Hongyuan Zhang , Zhiyu Yang
发明人： Hongyuan Zhang , Zhiyu Yang
IPC分类号： H04L7/04
CPC分类号： H04B1/7085 , H03M1/0836 , H03M1/1245 , H04B1/7113 , H04L7/042
摘要： An early-late gate based ADC timing approach is described for performing early-late gate timing recovery despite the presence of multipath signal distortion. Multipath conditions may severely distort Barker correlator magnitudes generated for taps within two taps of a determined bit synchronization time. Exemplary embodiments of the described approach may combine Barker correlator magnitudes for several receive chains to calculate the timing error correction corresponding to a difference of early and late taps. The approach may be used to increase the size and stability of Barker correlator magnitudes generated for taps far away from a determined bit synchronization time. Such embodiments allow early-late differences to be generated using combined Barker correlator magnitudes generated at taps that are two or more chips from a determined bit synchronization time, thereby avoiding multipath distortion that may distort Barker correlator magnitudes generated within two or more chips from the determined bit synchronization time.
摘要翻译：描述了一种基于早期门的ADC定时方法，用于执行早期门限定时恢复，尽管存在多径信号失真。多路径条件可能严重扭曲在确定的位同步时间的两个抽头之内为抽头产生的Barker相关器幅度。所描述的方法的示例性实施例可以组合几个接收链的巴克相关器幅度，以计算对应于早期和晚期抽头的差异的定时误差校正。该方法可以用于增加远离确定的位同步时间的抽头产生的巴克相关器幅度的大小和稳定性。这样的实施例允许使用在来自确定的位同步时间的两个或更多个芯片的抽头处产生的组合巴克相关器幅值来产生早期差异，从而避免可能使来自所确定的两个或更多个芯片内产生的Barker相关器幅度失真的多径失真位同步时间。

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