公开(公告)号：US08106604B2

公开(公告)日：2012-01-31

申请号：US12504335

申请日：2009-07-16

Applicant: Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Andrew M. Kameya ,  Kenneth C. Kwok ,  Victor K. Lee

Inventor： Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Andrew M. Kameya ,  Kenneth C. Kwok ,  Victor K. Lee

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  G09G3/342 ,  G09G2320/064 ,  H05B33/0815 ,  H05B33/0818

Abstract: A light emitting diode (LED) system implements a LED driver to drive a set of one or more LED strings. The LED driver includes a voltage source to provide an adjustable output voltage to a head end of each LED string of the set for a first duration and a second duration following the first duration. The LED driver further includes a feedback controller to control the voltage source to adjust the output voltage for the second duration based on a digital code value generated from a minimum tail voltage of one or more tail voltages of the set at a sample point of the first duration. The LED driver further includes a power controller to temporarily enable one or more components of the feedback controller for a sample period of the first duration, the sample period comprising the sample point.

Abstract translation: 发光二极管（LED）系统实现LED驱动器以驱动一组或多个LED串。 LED驱动器包括电压源，以在第一持续时间和第一持续时间之后的第一持续时间和第二持续时间内向组的每个LED串的头端提供可调节的输出电压。 所述LED驱动器还包括反馈控制器，用于控制所述电压源，以基于在所述第一持续时间内的所述第一持续时间的采样点从所述组的一个或多个尾部电压的最小尾部电压产生的数字代码值来调整所述输出电压 持续时间 LED驱动器还包括功率控制器，用于临时使得反馈控制器的一个或多个部件在第一持续时间的采样周期内，该采样周期包括采样点。

公开(公告)号：US08062782B2

公开(公告)日：2011-11-22

申请号：US12475667

申请日：2009-06-01

Applicant: Xiao-Zhou Wang ,  Lei Wang ,  Zhen-Gang Ding ,  Bin Zhao

Inventor： Xiao-Zhou Wang ,  Lei Wang ,  Zhen-Gang Ding ,  Bin Zhao

IPC: H01M2/10

CPC classification number: H01M2/1066

Abstract: A battery latching device is using for accommodating a battery and includes a housing, two opposite latching portions, a resisting portion, and a stopping member. The housing has a bottom wall and configured for accommodating the battery therein. The latching portions are formed on the bottom wall of the housing, and are configured for limiting the two opposite sides of the battery. The resisting portion are formed on the bottom wall of the housing and aligned with one end of the latching portions. The stopping member is retained to the bottom wall of the housing and aligned with another end of the latching portions. The two opposite ends of the battery are hold between the resisting portion and the stopping portion. When detaching the battery from the housing, the stopping member is capable of being pressed toward the bottom wall to release the battery.

Abstract translation: 电池闭锁装置用于容纳电池并且包括壳体，两个相对的闩锁部分，阻力部分和止动构件。 壳体具有底壁并且构造成用于将电池容纳在其中。 闩锁部分形成在壳体的底壁上，并且被配置为限制电池的两个相对侧。 抵抗部分形成在壳体的底壁上并与闩锁部分的一端对齐。 止动构件被保持到壳体的底壁并与闩锁部分的另一端对准。 电池的两个相对端保持在阻力部分和止动部分之间。 当将电池从外壳分离时，止动件能够被压向底壁以释放电池。

公开(公告)号：US20100264837A1

公开(公告)日：2010-10-21

申请号：US12424326

申请日：2009-04-15

Applicant: Bin Zhao

Inventor： Bin Zhao

IPC: H05B41/36 ,  H03K5/153

CPC classification number: G01R19/2506 ,  H05B33/0815 ,  H05B33/0827

Abstract: A peak detection/digitization circuit includes a plurality of level detect units, each having a comparator and a flip-flop with a clock input responsive to the output of the comparator. For a detection period, each level detect unit configures a data output signal of the flip-flop to a first data state responsive to a start of the detection period. Further, each level detect unit is configured to enable the comparator responsive to the data output signal having the first data state or a second data state, respectively. While the comparator is enabled during the detection period, the level detect unit configures the data output signal of the flip-flop responsive to a comparison of an input signal to a corresponding reference voltage level by the comparator. The data output signals of the flip-flops of the level detect units at the end of the detection period are used to determine a digital value representative of a peak voltage level of the input signal.

Abstract translation: 峰值检测/数字化电路包括多个电平检测单元，每个电平检测单元具有响应于比较器的输出的具有时钟输入的比较器和触发器。 对于检测周期，响应于检测周期的开始，每个电平检测单元将触发器的数据输出信号配置为第一数据状态。 此外，每个电平检测单元被配置为使得比较器能够分别响应于具有第一数据状态或第二数据状态的数据输出信号。 当在检测期间比较器被使能时，电平检测单元响应于比较器将输入信号与相应参考电压电平的比较来配置触发器的数据输出信号。 在检测周期结束时，电平检测单元的触发器的数据输出信号用于确定表示输入信号的峰值电压电平的数字值。

公开(公告)号：US20100126005A1

公开(公告)日：2010-05-27

申请号：US12624683

申请日：2009-11-24

Applicant: Yun-Feng He ,  Hua-Yin Zhang ,  Bin Zhao

Inventor： Yun-Feng He ,  Hua-Yin Zhang ,  Bin Zhao

IPC: B23P19/00 ,  B25B27/02

CPC classification number: B23P21/002 ,  Y10T29/5313 ,  Y10T29/53174 ,  Y10T29/53265 ,  Y10T29/5397 ,  Y10T29/53974

Abstract: An automatic assembly jig adapted for assembling an electronic component and a case is provided. The jig includes a working platform, a carrier, a pressure exerting device and at least a gear. The working platform has a guiding rail. The carrier is disposed on the working platform and is slidably mounted on the guiding rail. The pressure exerting device is disposed above the working platform. The gear is disposed on the working platform and connected with the carrier, so as to drive the carrier moving along the guiding rail to the position under the pressure exerting device.

Abstract translation: 提供了适用于组装电子部件和壳体的自动装配夹具。 夹具包括工作平台，托架，施压装置和至少一个齿轮。 工作平台有导轨。 载体设置在工作平台上并可滑动地安装在导轨上。 压力施加装置设置在工作平台的上方。 齿轮设置在工作平台上并与载体连接，以便将载体沿着导轨移动到压力施加装置下方的位置。

公开(公告)号：US20100085295A1

公开(公告)日：2010-04-08

申请号：US12244796

申请日：2008-10-03

Applicant: Bin Zhao ,  Andrew M. Kameya ,  Victor K. Lee

Inventor： Bin Zhao ,  Andrew M. Kameya ,  Victor K. Lee

IPC: G09G3/36

CPC classification number: G09G3/3406 ,  G09G2320/064

Abstract: A PWM generation module generates a PWM data signal used to control a light emitting diode (LED) driver for one or more strings of LEDs of a display device. The PWM data signal is synchronized with the frame boundaries of the video content being displayed. The PWM generation module can configure the PWM data signal such that a new PWM cycle is initiated at the start of each successive frame, and further whereby those PWM cycles that would be prematurely terminated at frame boundaries are instead driven at a constant reference level until the frame boundary. With this configuration, a substantially linear average light intensity can be achieved across frames, thereby reducing or eliminating display distortion that is often present in other PWM cycle synchronization techniques. The PWM generation module can use a self-learning process to make adjustments to the expected number of completeable PWM cycles per frame in response to dynamic changes in the frame rate, PWM frequency, or other related display parameters.

Abstract translation: PWM生成模块生成用于控制显示装置的一个或多个LED串的发光二极管（LED）驱动器的PWM数据信号。 PWM数据信号与正在显示的视频内容的帧边界同步。 PWM生成模块可以配置PWM数据信号，使得在每个连续帧的开始处启动新的PWM周期，并且进一步地，将在帧边界处过早终止的那些PWM周期以恒定的参考电平驱动直到 帧边界。 利用这种配置，可以跨帧实现基本线性的平均光强度，从而减少或消除其他PWM周期同步技术中经常出现的显示失真。 PWM生成模块可以使用自学习过程来响应于帧速率，PWM频率或其他相关显示参数的动态变化来调整每帧的可完成PWM周期的预期数量。

公开(公告)号：US20100064305A1

公开(公告)日：2010-03-11

申请号：US12556775

申请日：2009-09-10

Applicant: Robert Schumann ,  Michael Bergeron ,  Guillaume Mercier ,  Bin Zhao

Inventor： Robert Schumann ,  Michael Bergeron ,  Guillaume Mercier ,  Bin Zhao

IPC: H04N7/16 ,  H04N7/167

CPC classification number: H04N7/163 ,  H04N21/4223 ,  H04N21/42684 ,  H04N21/44008 ,  H04N21/44236 ,  H04N21/8358

Abstract: In one embodiment the present invention includes a system for identifying an unauthorized display of content. The system includes a preprocessor, an inserter, an observation device, and a subscriber information device. The preprocessor device preprocesses the content for subsequent insertion of semi-visible information. The inserter device inserts a semi-visible watermark into the content as having been preprocessed by the preprocessor device. The semi-visible watermark corresponds to a subscriber identifier. The observation device executes processing, including receiving an input from an observer that observes a display of the content that includes the semi-visible watermark. The input corresponds to the semi visible watermark. The processing further includes processing the input to generate an input result. The subscriber information device stores subscriber identifiers and identifies a particular subscriber by comparing the input result and the subscriber identifiers.

Abstract translation: 在一个实施例中，本发明包括用于识别内容的未授权显示的系统。 该系统包括预处理器，插入器，观察设备和用户信息设备。 预处理器设备预处理内容以便后续插入半可见信息。 插入器装置将半可见水印插入到由预处理器装置预处理的内容中。 半可见水印对应于订户标识符。 观察装置执行处理，包括从观察者接收到观察到包含半可见水印的内容的显示的输入。 输入对应于半可见水印。 处理进一步包括处理输入以产生输入结果。 用户信息设备存储用户标识符，并通过比较输入结果和用户标识符来识别特定用户。

公开(公告)号：US20090230891A1

公开(公告)日：2009-09-17

申请号：US12056237

申请日：2008-03-26

Applicant: Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Victor K. Lee ,  Andrew M. Kameya

Inventor： Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Victor K. Lee ,  Andrew M. Kameya

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  H05B33/0815 ,  Y02B20/347

Abstract: Power management in a light emitting diode (LED) system having a plurality of LED strings is disclosed. A voltage source provides an output voltage to drive the LED strings. An LED driver monitors the tail voltages of the active LED strings to identify the minimum, or lowest, tail voltage and adjusts the output voltage of the voltage source based on the lowest tail voltage. The LED driver can adjust the output voltage so as to maintain the lowest tail voltage at or near a predetermined threshold voltage so as to ensure that the output voltage is sufficient to properly drive each active LED string with a regulated current in view of pulse width modulation (PWM) performance requirements without excessive power consumption.

Abstract translation: 公开了具有多个LED串的发光二极管（LED）系统中的电源管理。 电压源提供输出电压来驱动LED串。 LED驱动器监视有源LED串的尾部电压，以识别最小或最低的尾部电压，并根据最低的尾部电压调节电压源的输出电压。 LED驱动器可以调节输出电压，以将最低的尾部电压保持在预定阈值电压处或接近预定阈值电压，以便确保输出电压足以根据脉宽调制来适当地驱动具有调节电流的每个有源LED串 （PWM）性能要求，而无需过多的功耗。

公开(公告)号：US20090230874A1

公开(公告)日：2009-09-17

申请号：US12363179

申请日：2009-01-30

Applicant: Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Victor K. Lee ,  Andrew M. Kameya

Inventor： Bin Zhao ,  Jack W. Cornish ,  Brian B. Horng ,  Victor K. Lee ,  Andrew M. Kameya

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0827

Abstract: Techniques for dynamic headroom control in a light emitting diode (LED) system are disclosed. An output voltage is provided to drive a plurality of LED strings. A feedback controller monitors the tail voltages of the LED strings to identify the minimum tail voltage and adjusts the output voltage based on the lowest tail voltage. The LED strings grouped into subsets and the feedback controller is segmented such that, for a certain duration, a minimum tail voltage is determined for each subset. The minimum tail voltages of the subsets are used to determine the overall minimum tail voltage of the plurality of LED strings for the certain duration so as to control the output voltage in the following duration. The segments of the feedback controller can be implemented in separate integrated circuit (IC) packages, thereby facilitating adaptation to different numbers of LED strings by integrating the corresponding number of IC packages.

Abstract translation: 公开了一种用于发光二极管（LED）系统中的动态裕量控制技术。 提供输出电压以驱动多个LED串。 反馈控制器监视LED串的尾部电压，以识别最小尾电压，并根据最低的尾部电压调节输出电压。 将LED串分组成子集，并且反馈控制器被分段，使得在一定持续时间内，为每个子集确定最小尾电压。 子集的最小尾电压用于在特定持续时间内确定多个LED串的总体最小尾电压，以便在随后的持续时间内控制输出电压。 反馈控制器的段可以在单独的集成电路（IC）封装中实现，从而通过集成相应数量的IC封装来促进适应不同数量的LED串。

公开(公告)号：US07586295B2

公开(公告)日：2009-09-08

申请号：US12157241

申请日：2008-06-09

Applicant: Bin Zhao

Inventor： Bin Zhao

IPC: G05F1/00

CPC classification number: H02M3/07

Abstract: According to one exemplary embodiment, a voltage up-conversion circuit includes a modulated voltage generator circuit, where the modulated voltage generator circuit is configured to receive an input voltage and generate a modulated voltage, and where the modulated voltage generator circuit includes at least one transistor. The voltage up-conversion circuit further includes a switching circuit coupled to the modulated voltage generator circuit, where the switching circuit is configured to couple the modulated voltage to a load capacitor when the modulated voltage is at a high level and decouple the modulated voltage to the load capacitor when the modulated voltage is at a low level. In the voltage up-conversion circuit, the load capacitor reaches a voltage greater a breakdown voltage of the at least one transistor in the modulated voltage generator circuit. The breakdown voltage can be a reliability breakdown voltage.

Abstract translation: 根据一个示例性实施例，电压上变换电路包括调制电压发生器电路，其中调制电压发生器电路被配置为接收输入电压并产生调制电压，并且其中调制电压发生器电路包括至少一个晶体管 。 电压上变换电路还包括耦合到调制电压发生器电路的开关电路，其中开关电路被配置为当调制电压处于高电平时将调制电压耦合到负载电容器，并将调制电压去耦到 当调制电压处于低电平时加载电容。 在电压上变换电路中，负载电容器达到调制电压发生器电路中至少一个晶体管的击穿电压更大的电压。 击穿电压可以是可靠性击穿电压。

公开(公告)号：US20090108776A1

公开(公告)日：2009-04-30

申请号：US11929194

申请日：2007-10-30

Applicant: Bin Zhao

Inventor： Bin Zhao

IPC: H05B37/02 ,  H01L35/00

CPC classification number: H05B33/0812 ,  Y02B20/345

Abstract: A circuit can provide an approximately constant resistance value that is virtually independent of process and temperature variations. A current control circuit may use a device that tracks the changes in a corresponding device over process and temperature variations. As a result, the behavior of device may be used to help determine the control information provided to device in order to maintain an approximately constant resistance Rm over process and temperature variations. The approximately constant resistance Rm may be used to provide an approximately constant current ILED. A wide variety of applications, not just LED drivers, may benefit from the use of an approximately constant resistance and/or current.

Abstract translation: 电路可以提供几乎不变的过程和温度变化的近似恒定的电阻值。 电流控制电路可以使用跟踪过程和温度变化的对应装置中的变化的装置。 结果，可以使用装置的行为来帮助确定提供给装置的控制信息，以便在过程和温度变化上保持大致恒定的电阻Rm。 可以使用大致恒定的电阻Rm来提供近似恒定的电流ILED。 各种应用，不仅仅是LED驱动器，可能受益于使用近似恒定的电阻和/或电流。