专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20050162361A1 Frame-shifted dynamic gamma correction method and system 审中-公开
标题翻译：帧移动态伽马校正方法和系统
公开(公告)号：US20050162361A1
公开(公告)日：2005-07-28
申请号：US11040024
申请日：2005-01-24
申请人： Chao-Hsuan Chuang , Yiu-I Lin , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu
发明人： Chao-Hsuan Chuang , Yiu-I Lin , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/202
CPC分类号： G09G3/3611 , G06T5/009 , G06T5/40 , G09G2320/0276 , G09G2340/16
摘要： A frame-shifted technique is disclosed for a dynamic gamma correction method and system that comprises counting the gray levels of each frame to figure out the probability distribution of gray levels in the current frame, and determining the gamma reference voltages according to the probability distribution of gray levels of the current frame for the gamma correction of the next frame.
摘要翻译：公开了一种用于动态伽马校正方法和系统的帧移动技术，其包括对每帧的灰度级进行计数，以计算当前帧中的灰度级的概率分布，并根据概率分布来确定伽马参考电压当前帧的灰度级，用于下一帧的伽马校正。

2. 发明授权

US07271802B2 Dual panel display backlight power controller chip for handheld apparatus 失效
标题翻译：双面板显示背光电源控制芯片，用于手持设备
公开(公告)号：US07271802B2
公开(公告)日：2007-09-18
申请号：US10846585
申请日：2004-05-17
申请人： Der-Jiunn Wang , Jing-Meng Liu , Chao-Hsuan Chuang , Nien-Hui Kung , Wen-Hung Huang
发明人： Der-Jiunn Wang , Jing-Meng Liu , Chao-Hsuan Chuang , Nien-Hui Kung , Wen-Hung Huang
IPC分类号： G06F1/30
CPC分类号： G09G3/342 , G09G3/3208 , G09G2320/0606 , G09G2320/0626 , G09G2330/02
摘要： A backlight power controller chip comprises a control circuit connected to two switches to turn on and off two display panels of a dual panel display handheld apparatus. The controller chip individually switches the two switches to control the backlight sources of the two display panels. The controller chip is available for various types of display panels.
摘要翻译：背光源功率控制器芯片包括连接到两个开关的控制电路以打开和关闭双面板显示器手持设备的两个显示面板。控制器芯片单独切换两个开关以控制两个显示面板的背光源。控制器芯片可用于各种类型的显示面板。

3. 发明申请

US20060033484A1 Control method and device for a power-converting module that drives a light-emitting component 失效
公开(公告)号：US20060033484A1
公开(公告)日：2006-02-16
申请号：US10919015
申请日：2004-08-16
申请人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
发明人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
IPC分类号： H01F29/14
CPC分类号： H05B33/0818 , H05B33/0851 , Y02B20/346
摘要： A control device, which controls a power-converting module that is coupled to a light-emitting component, includes a duration detecting unit and a control signal generator. The duration detecting unit compares the duration of a predetermined logic state of a pulsating input dim control signal with a reference time period. The control signal generator is enabled by the duration detecting unit so as to generate a control signal that enables the power-converting module to generate a drive voltage for driving the light-emitting component when the duration of the predetermined logic state is not longer than the reference time period. The duration detecting unit disables the control signal generator to disable the power-converting module when the duration of the predetermined logic state is longer than the reference time period.

4. 发明授权

US07332879B2 Control method and device for a power-converting module that drives a light-emitting component 失效
公开(公告)号：US07332879B2
公开(公告)日：2008-02-19
申请号：US10919015
申请日：2004-08-16
申请人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
发明人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
IPC分类号： H05B37/02 , H02M3/156
CPC分类号： H05B33/0818 , H05B33/0851 , Y02B20/346
摘要： A control device, which controls a power-converting module that is coupled to a light-emitting component, includes a duration detecting unit and a control signal generator. The duration detecting unit compares the duration of a predetermined logic state of a pulsating input dim control signal with a reference time period. The control signal generator is enabled by the duration detecting unit so as to generate a control signal that enables the power-converting module to generate a drive voltage for driving the light-emitting component when the duration of the predetermined logic state is not longer than the reference time period. The duration detecting unit disables the control signal generator to disable the power-converting module when the duration of the predetermined logic state is longer than the reference time period.

5. 发明授权

US07550932B2 Control method and device for a power-converting module that drives a light-emitting component 失效
标题翻译：用于驱动发光部件的功率转换模块的控制方法和装置
公开(公告)号：US07550932B2
公开(公告)日：2009-06-23
申请号：US12002545
申请日：2007-12-18
申请人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
发明人： Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Chao-Hsuan Chuang , Jien-Sheng Chen , Shui-Mu Lin , Wei-Hsin Wei
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0851 , Y02B20/346
摘要： A control device, which controls a power-converting module that is coupled to a light-emitting component, includes a duration detecting unit and a control signal generator. The duration detecting unit compares the duration of a predetermined logic state of a pulsating input dim control signal with a reference time period. The control signal generator is enabled by the duration detecting unit so as to generate a control signal that enables the power-converting module to generate a drive voltage for driving the light-emitting component when the duration of the predetermined logic state is not longer than the reference time period. The duration detecting unit disables the control signal generator to disable the power-converting module when the duration of the predetermined logic state is longer than the reference time period.
摘要翻译：控制耦合到发光部件的功率转换模块的控制装置包括持续时间检测单元和控制信号发生器。持续时间检测单元将脉动输入调光控制信号的预定逻辑状态的持续时间与参考时间段进行比较。控制信号发生器由持续时间检测单元使能，以便产生一个控制信号，当预定逻辑状态的持续时间不长于该时间时，该控制信号使电力转换模块能够产生用于驱动发光部件的驱动电压参考时间段。当预定逻辑状态的持续时间长于参考时间段时，持续时间检测单元禁止控制信号发生器禁用功率转换模块。

6. 发明申请

US20060055465A1 Low voltage output current mirror method and apparatus thereof 审中-公开
标题翻译：低压输出电流镜方法及其装置
公开(公告)号：US20060055465A1
公开(公告)日：2006-03-16
申请号：US10940663
申请日：2004-09-15
申请人： Shui-Mu Lin , Chao-Hsuan Chuang , Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Jien-Sheng Chen , Wei-Hsin Wei
发明人： Shui-Mu Lin , Chao-Hsuan Chuang , Nien-Hui Kung , Yiu-I Lin , Der-Jiunn Wang , Jien-Sheng Chen , Wei-Hsin Wei
IPC分类号： H03F3/04
CPC分类号： G05F3/262 , H03F3/04 , H03F3/345 , H03F3/45475 , H03F2200/513
摘要： A current mirror circuit that comprises a current mirror unit, a feedback unit and an amplifier unit is provided to output low voltage. The current mirror unit has a plurality of connecting ends, wherein one end couples to a current source, and the other end couples to a loading device. The feedback unit couples to the current mirror unit and the amplifier unit. The amplifier unit couples to the current mirror unit to lockup the voltages of the three notes configured in a plurality of MOS transistors of the current mirror unit. By way of the configuration of the present invention, the current mirror unit can detect an accurate current or map out accurately a push controlling current through the electrical characteristic of the amplifier unit and the feedback of the feedback unit.
摘要翻译：提供包括电流镜单元，反馈单元和放大器单元的电流镜电路以输出低电压。电流镜单元具有多个连接端，其中一端耦合到电流源，另一端耦合到加载装置。反馈单元耦合到电流镜单元和放大器单元。放大器单元耦合到电流镜单元以锁定配置在电流镜单元的多个MOS晶体管中的三个音符的电压。通过本发明的结构，电流镜单元可以通过放大器单元的电特性和反馈单元的反馈来精确地检测精确的电流或精确地映射推压控制电流。

7. 发明授权

US07385422B2 Tri-state output logic with zero quiescent current by one input control 失效
标题翻译：具有零静态电流的三态输出逻辑由一个输入控制
公开(公告)号：US07385422B2
公开(公告)日：2008-06-10
申请号：US11217341
申请日：2005-09-02
申请人： Shui-Mu Lin , Chien-Sheng Chen , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu , Wei-Hsin Wei
发明人： Shui-Mu Lin , Chien-Sheng Chen , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu , Wei-Hsin Wei
IPC分类号： H03K19/02
CPC分类号： G06F1/26
摘要： A voltage generating circuit, which generates tri-state logic output in accordance with high, low or floating of the input node, is proposed. The present voltage generating circuit includes: a pulse generating circuit for generating a plurality of pulses; a voltage selecting circuit having a pair of NMOS transistors coupled in common source, each drain of the NMOS transistors is coupled to a current source respectively, both gates of the NMOS transistors are coupled to an input node, and the paired drain of the NMOS transistors generate a pair of voltage output; a plurality of flip-flops, which couple to drains of the NMOS transistors to lock the voltage output of the NMOS transistors in accordance with the pulses; an inner voltage-generating unit couples to the input node for providing a floating voltage level; and a plurality of switches controlled by the pulses for controlling the normal operation of the voltage selecting circuit and the conduction between the inner-voltage generating unit with the input node.
摘要翻译：提出了根据输入节点的高，低或浮动产生三态逻辑输出的电压产生电路。本电压发生电路包括：产生多个脉冲的脉冲发生电路; 一个电压选择电路，具有耦合在公共源极上的一对NMOS晶体管，NMOS晶体管的每个漏极分别耦合到电流源，NMOS晶体管的两个栅极耦合到输入节点，并且NMOS晶体管的成对漏极产生一对电压输出; 多个触发器，其耦合到NMOS晶体管的漏极以根据脉冲锁定NMOS晶体管的电压输出; 内部电压产生单元耦合到输入节点以提供浮动电压电平; 以及由用于控制电压选择电路的正常操作的脉冲控制的多个开关以及内部电压产生单元与输入节点之间的导通。

8. 发明申请

US20060279331A1 Tri-state output logic with zero quiescent current by one input control 失效
标题翻译：具有零静态电流的三态输出逻辑由一个输入控制
公开(公告)号：US20060279331A1
公开(公告)日：2006-12-14
申请号：US11217341
申请日：2005-09-02
申请人： Shui-Mu Lin , Chien-Sheng Chen , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu , Wei-Hsin Wei
发明人： Shui-Mu Lin , Chien-Sheng Chen , Nien-Hui Kung , Der-Jiunn Wang , Jing-Meng Liu , Wei-Hsin Wei
IPC分类号： H03K19/00
CPC分类号： G06F1/26
摘要： A voltage generating circuit, which generates tri-state logic output in accordance with high, low or floating of the input node, is proposed. The present voltage generating circuit includes: a pulse generating circuit for generating a plurality of pulses; a voltage selecting circuit having a pair of NMOS transistors coupled in common source, each drain of the NMOS transistors is coupled to a current source respectively, both gates of the NMOS transistors are coupled to an input node, and the paired drain of the NMOS transistors generate a pair of voltage output; a plurality of flip-flops, which couple to drains of the NMOS transistors to lock the voltage output of the NMOS transistors in accordance with the pulses; an inner voltage-generating unit couples to the input node for providing a floating voltage level; and a plurality of switches controlled by the pulses for controlling the normal operation of the voltage selecting circuit and the conduction between the inner-voltage generating unit with the input node.
摘要翻译：提出了根据输入节点的高，低或浮动产生三态逻辑输出的电压产生电路。本电压发生电路包括：产生多个脉冲的脉冲发生电路; 一个电压选择电路，具有耦合在公共源极上的一对NMOS晶体管，NMOS晶体管的每个漏极分别耦合到电流源，NMOS晶体管的两个栅极耦合到输入节点，并且NMOS晶体管的成对漏极产生一对电压输出; 多个触发器，其耦合到NMOS晶体管的漏极以根据脉冲锁定NMOS晶体管的电压输出; 内部电压产生单元耦合到输入节点以提供浮动电压电平; 以及由用于控制电压选择电路的正常操作的脉冲控制的多个开关以及内部电压产生单元与输入节点之间的导通。

9. 发明授权

US07026800B2 Feed-forward method for improving a transient response for a DC—DC power conversion and DC—DC voltage converter utilizing the same 有权
标题翻译：用于改善DC-DC电力转换的瞬态响应的前馈方法和利用其的DC-DC电压转换器
公开(公告)号：US07026800B2
公开(公告)日：2006-04-11
申请号：US10683395
申请日：2003-10-14
申请人： Jing-Meng Liu , Liang-Pin Tai , Der-Jiunn Wang
发明人： Jing-Meng Liu , Liang-Pin Tai , Der-Jiunn Wang
IPC分类号： G05F1/40 , H02M1/12
CPC分类号： H02M3/156
摘要： In a method for a DC-DC power conversion performed by a switching mode buck voltage converter, the power conversion is split into two or more stages, and a feed-forward signal is generated by one of the stages and sent to another stage prior thereto. The feed-forward signal is generated by responding to a load current transient, such as output voltage drop, ON-duty increment or decrement occurred in the PWM control loop, error amp output swinging, and any other detectable signals in response to load current transient of the voltage converter. As a result, the performance of the DC-DC voltage converter is improved due to the prior stage modulated early in time, and both lower ripple current and peak current in steady state operations and fast response to load current transient conditions could be simultaneously obtained.
摘要翻译：在由开关模式降压电压转换器执行的DC-DC功率转换的方法中，功率转换被分为两级或更多级，并且前级信号由其中一级产生并发送到其之前的另一级。前馈信号通过响应负载电流瞬变而产生，例如输出电压降，PWM控制环中发生的占空比增量或减量，误差放大器输出摆幅以及响应于负载电流瞬变的任何其他可检测信号的电压转换器。结果，由于早期调制了DC-DC电压转换器的性能，可以同时获得稳态运行中的较低纹波电流和峰值电流以及对负载电流瞬态条件的快速响应。

10. 发明授权

US08836614B1 Display panel control circuit and multi-chip module thereof 有权
标题翻译：显示面板控制电路及其多芯片模块
公开(公告)号：US08836614B1
公开(公告)日：2014-09-16
申请号：US13778543
申请日：2013-02-27
申请人： Der-Jiunn Wang
发明人： Der-Jiunn Wang
IPC分类号： G09G3/28 , H05B37/02
CPC分类号： G09G3/3677
摘要： The present invention provides a display panel control circuit, including: a voltage adjustment unit including a high side switch coupled between an output terminal and a high voltage source, a low side switch coupled between the output terminal and a low voltage source, and a voltage adjustment switch coupled between the output terminal and a switching node; a direction control unit, including a first diode having a cathode coupled to the switching node and an anode coupled to a voltage rising node, and a second diode having an anode coupled the switching node and a cathode coupled to a voltage falling node; a voltage rising resistor coupled between the voltage rising node and a shaping voltage source; and a voltage falling resistor coupled between the voltage falling node and the shaping voltage source.
摘要翻译：本发明提供了一种显示面板控制电路，包括：电压调整单元，包括耦合在输出端子和高电压源之间的高侧开关，耦合在输出端子和低电压源之间的低侧开关，以及电压耦合在输出端和交换节点之间的调节开关; 方向控制单元，包括具有耦合到所述开关节点的阴极的第一二极管和耦合到电压上升节点的阳极，以及耦合到所述开关节点的阳极和耦合到降压节点的阴极的第二二极管; 耦合在电压上升节点和整形电压源之间的升压电阻器; 以及耦合在电压下降节点和整形电压源之间的降压电阻器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式