公开(公告)号：US07564320B2

公开(公告)日：2009-07-21

申请号：US11812032

申请日：2007-06-14

申请人： Wei-Ming Chiu ,  Yung-Ming Chiu ,  Ka-Un Chan

发明人： Wei-Ming Chiu ,  Yung-Ming Chiu ,  Ka-Un Chan

IPC分类号： H03L7/099

CPC分类号： H03L7/099 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243

摘要： A voltage-controlled oscillator (VCO) includes: an oscillation unit, for generating an oscillation signal according to a biasing current; a current mirror, for providing the biasing current, the current mirror comprising: at least one first transistor, coupled between a first voltage level and a current source; at least one second transistor, coupled to the first voltage level, a gate of the second transistor is coupled to a gate of the first transistor and the current source; a switch module, coupled to the current mirror; and a control module, coupled to the switch module, for controlling the switch module to adjust the biasing current.

摘要翻译： 压控振荡器（VCO）包括：振荡单元，用于根据偏置电流产生振荡信号; 用于提供偏置电流的电流镜，所述电流镜包括：耦合在第一电压电平和电流源之间的至少一个第一晶体管; 耦合到所述第一电压电平的至少一个第二晶体管，所述第二晶体管的栅极耦合到所述第一晶体管和所述电流源的栅极; 耦合到电流镜的开关模块; 以及耦合到开关模块的控制模块，用于控制开关模块来调节偏置电流。

公开(公告)号：US20080007351A1

公开(公告)日：2008-01-10

申请号：US11812032

申请日：2007-06-14

申请人： Wei-Ming Chiu ,  Yung-Ming Chiu ,  Ka-Un Chan

发明人： Wei-Ming Chiu ,  Yung-Ming Chiu ,  Ka-Un Chan

IPC分类号： H03L7/00

CPC分类号： H03L7/099 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243

摘要： A voltage-controlled oscillator (VCO) includes: an oscillation unit, for generating an oscillation signal according to a biasing current; a current mirror, for providing the biasing current, the current mirror comprising: at least one first transistor, coupled between a first voltage level and a current source; at least one second transistor, coupled to the first voltage level, a gate of the second transistor is coupled to a gate of the first transistor and the current source; a switch module, coupled to the current mirror; and a control module, coupled to the switch module, for controlling the switch module to adjust the biasing current.

摘要翻译： 压控振荡器（VCO）包括：振荡单元，用于根据偏置电流产生振荡信号; 用于提供偏置电流的电流镜，所述电流镜包括：耦合在第一电压电平和电流源之间的至少一个第一晶体管; 耦合到所述第一电压电平的至少一个第二晶体管，所述第二晶体管的栅极耦合到所述第一晶体管和所述电流源的栅极; 耦合到电流镜的开关模块; 以及耦合到开关模块的控制模块，用于控制开关模块来调节偏置电流。

公开(公告)号：US07701258B2

公开(公告)日：2010-04-20

申请号：US12000063

申请日：2007-12-07

申请人： Wei-Ming Chiu ,  Ka-Un Chan

发明人： Wei-Ming Chiu ,  Ka-Un Chan

IPC分类号： G11C7/00

CPC分类号： H03K3/356139 ,  H03K3/356043

摘要： A latch includes: an amplifying circuit, for receiving a first bias current in a first state for amplifying an input signal to generate an amplified signal; a latching unit, for latching the amplified signal and receiving a second bias current in a second state to output the amplified signal; and a biasing circuit, for providing a biasing current to the amplifying circuit, and providing the second biasing current to the latching unit. The biasing circuit includes: a first biasing module for providing a third biasing circuit to the amplifying circuit in the first state; and a second biasing module, for providing a fourth biasing current to the amplified circuit; wherein the first biasing circuit is equal to a sum of the third biasing current and the fourth biasing current.

摘要翻译： 锁存器包括：放大电路，用于接收第一状态的第一偏置电流，用于放大输入信号以产生放大信号; 锁存单元，用于锁存放大的信号并在第二状态接收第二偏置电流以输出放大的信号; 以及偏置电路，用于向放大电路提供偏置电流，并向锁存单元提供第二偏置电流。 偏置电路包括：第一偏置模块，用于在第一状态下向放大电路提供第三偏置电路; 以及第二偏置模块，用于向放大电路提供第四偏置电流; 其中所述第一偏置电路等于所述第三偏置电流和所述第四偏置电流的和。

公开(公告)号：US20080136482A1

公开(公告)日：2008-06-12

申请号：US12000063

申请日：2007-12-07

申请人： Wei-Ming Chiu ,  Ka-Un Chan

发明人： Wei-Ming Chiu ,  Ka-Un Chan

IPC分类号： H03K3/0233

CPC分类号： H03K3/356139 ,  H03K3/356043

摘要： A latch includes: an amplifying circuit, for receiving a first bias current in a first state for amplifying an input signal to generate an amplified signal; a latching unit, for latching the amplified signal and receiving a second bias current in a second state to output the amplified signal; and a biasing circuit, for providing a biasing current to the amplifying circuit, and providing the second biasing current to the latching unit. The biasing circuit includes: a first biasing module for providing a third biasing circuit to the amplifying circuit in the first state; and a second biasing module, for providing a fourth biasing current to the amplified circuit; wherein the first biasing circuit is equal to a sum of the third biasing current and the fourth biasing current.

摘要翻译： 锁存器包括：放大电路，用于接收第一状态的第一偏置电流，用于放大输入信号以产生放大信号; 锁存单元，用于锁存放大的信号并在第二状态接收第二偏置电流以输出放大的信号; 以及偏置电路，用于向放大电路提供偏置电流，并向锁存单元提供第二偏置电流。 偏置电路包括：第一偏置模块，用于在第一状态下向放大电路提供第三偏置电路; 以及第二偏置模块，用于向放大电路提供第四偏置电流; 其中所述第一偏置电路等于所述第三偏置电流和所述第四偏置电流的和。

公开(公告)号：US09307606B2

公开(公告)日：2016-04-05

申请号：US14792909

申请日：2015-07-07

申请人： Chang-Yu Wu ,  Wei-Ming Chiu

发明人： Chang-Yu Wu ,  Wei-Ming Chiu

IPC分类号： H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818

摘要： The present invention provides a light emitting device driver circuit and a control circuit and a control method thereof. The light emitting device driver circuit is used for driving a light emitting device circuit according to a rectified dimming signal. The light emitting device driver circuit includes a power stage circuit and a control circuit. The control circuit includes a pulse width modulation (PWM) circuit, a current limit (CL) circuit, and a determination circuit. The CL circuit generates a CL signal according to a current sense signal and a predetermined CL threshold. The determination circuit is coupled to the PWM circuit and the CL circuit, for generating an operation signal according to a PWM signal and the CL signal. The power stage circuit maintains an absolute level of an AC dimming current not lower than a holding current in an ON phase period.

摘要翻译： 本发明提供一种发光装置驱动电路及其控制电路及其控制方法。 发光器件驱动电路用于根据整流调光信号驱动发光器件电路。 发光装置驱动电路包括功率级电路和控制电路。 控制电路包括脉冲宽度调制（PWM）电路，电流限制（CL）电路和确定电路。 CL电路根据电流检测信号和预定的CL阈值产生CL信号。 确定电路耦合到PWM电路和CL电路，用于根据PWM信号和CL信号产生操作信号。 功率级电路在ON阶段期间保持不低于保持电流的AC调光电流的绝对电平。

公开(公告)号：US20070146025A1

公开(公告)日：2007-06-28

申请号：US11491159

申请日：2006-07-24

申请人： Hong-Yi Huang ,  Wei-Ming Chiu ,  Yuan-Hua Chu

发明人： Hong-Yi Huang ,  Wei-Ming Chiu ,  Yuan-Hua Chu

IPC分类号： H03L7/06

CPC分类号： H03K5/151 ,  H03K5/1565

摘要： A pulse-width control loop (PWCL) for clock with any pulse-width ratio within a wide range is provided. A differential programmable charge pump is employed to stabilize the current source by complementary connection. The differential programmable charge pump has a pair of differential charge pumps and a current source module to adjust the ratio of charge to discharge, so as to accelerate the range of the adjustable pulse-width ratio of the output clock and increase the output resolution. Further, a ratioless input control stage is employed to simplify the circuit design and avoid static power consumption. Moreover, the control stage adjusts rising pulse width and dropping pulse width at one period, thereby accelerating the lock speed and the range of the adjustable pulse-width ratio (i.e., duty cycle) of the input clock.

摘要翻译： 提供了在宽范围内具有任何脉冲宽度比的时钟的脉冲宽度控制回路（PWCL）。 采用差分可编程电荷泵通过互补连接来稳定电流源。 差分可编程电荷泵具有一对差动电荷泵和电流源模块，用于调节充放电比例，从而加快输出时钟可调脉宽比的范围，提高输出分辨率。 此外，采用无竞争的输入控制级以简化电路设计并避免静态功耗。 此外，控制级在一个周期调节上升脉冲宽度和下降脉冲宽度，从而加速锁定速度和输入时钟的可调脉冲宽度比（即占空比）的范围。

公开(公告)号：US20110046758A1

公开(公告)日：2011-02-24

申请号：US12545330

申请日：2009-08-21

申请人： Sampson Soo ,  Wei-Ming Chiu

发明人： Sampson Soo ,  Wei-Ming Chiu

IPC分类号： G06F17/00 ,  H04B1/00

CPC分类号： H04R5/04

摘要： An audio-controlling system has a mixer and an audio playing and controlling device. The mixer mixes an external audio signal and a controlling signal and then outputs a mixed audio signal to the audio playing and controlling device. The audio playing and controlling device is connected to the mixer to receive the mixed audio signal, plays the mixed audio signal and executes action according to controlling signal of the mixed audio signal. Therefore, The audio playing unit plays audio signal and the decoding unit outputs command codes to the actuator in wire or wireless way, so that the actuator automatically operates at the same time.

摘要翻译： 音频控制系统具有混音器和音频播放和控制装置。 混频器混合外部音频信号和控制信号，然后将混合音频信号输出到音频播放和控制装置。 音频播放和控制装置连接到混合器以接收混合音频信号，播放混合音频信号并根据混合音频信号的控制信号执行动作。 因此，音频播放单元播放音频信号，并且解码单元以有线或无线方式向致动器输出命令代码，使得致动器同时自动操作。

公开(公告)号：US07466177B2

公开(公告)日：2008-12-16

申请号：US11491159

申请日：2006-07-24

申请人： Hong-Yi Huang ,  Wei-Ming Chiu ,  Yuan-Hua Chu

发明人： Hong-Yi Huang ,  Wei-Ming Chiu ,  Yuan-Hua Chu

IPC分类号： H03K3/17

CPC分类号： H03K5/151 ,  H03K5/1565

摘要： A pulse-width control loop (PWCL) for clock with any pulse-width ratio within a wide range is provided. A differential programmable charge pump is employed to stabilize the current source by complementary connection. The differential programmable charge pump has a pair of differential charge pumps and a current source module to adjust the ratio of charge to discharge, so as to accelerate the range of the adjustable pulse-width ratio of the output clock and increase the output resolution. Further, a ratioless input control stage is employed to simplify the circuit design and avoid static power consumption. Moreover, the control stage adjusts rising pulse width and dropping pulse width at one period, thereby accelerating the lock speed and the range of the adjustable pulse-width ratio (i.e., duty cycle) of the input clock.

摘要翻译： 提供了在宽范围内具有任何脉冲宽度比的时钟的脉冲宽度控制回路（PWCL）。 采用差分可编程电荷泵通过互补连接来稳定电流源。 差分可编程电荷泵具有一对差动电荷泵和电流源模块，用于调节充放电比例，从而加快输出时钟可调脉宽比的范围，提高输出分辨率。 此外，采用无竞争的输入控制级以简化电路设计并避免静态功耗。 此外，控制级在一个周期调节上升脉冲宽度和下降脉冲宽度，从而加速锁定速度和输入时钟的可调脉冲宽度比（即占空比）的范围。

公开(公告)号：US20160021715A1

公开(公告)日：2016-01-21

申请号：US14792909

申请日：2015-07-07

申请人： Chang-Yu Wu ,  Wei-Ming Chiu

发明人： Chang-Yu Wu ,  Wei-Ming Chiu

IPC分类号： H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818

摘要： The present invention provides a light emitting device driver circuit and a control circuit and a control method thereof. The light emitting device driver circuit is used for driving a light emitting device circuit according to a rectified dimming signal. The light emitting device driver circuit includes a power stage circuit and a control circuit. The control circuit includes a pulse width modulation (PWM) circuit, a current limit (CL) circuit, and a determination circuit. The CL circuit generates a CL signal according to a current sense signal and a predetermined CL threshold. The determination circuit is coupled to the PWM circuit and the CL circuit, for generating an operation signal according to a PWM signal and the CL signal. The power stage circuit maintains an absolute level of an AC dimming current not lower than a holding current in an ON phase period.

摘要翻译： 本发明提供一种发光装置驱动电路及其控制电路及其控制方法。 发光器件驱动电路用于根据整流调光信号驱动发光器件电路。 发光装置驱动电路包括功率级电路和控制电路。 控制电路包括脉冲宽度调制（PWM）电路，电流限制（CL）电路和确定电路。 CL电路根据电流检测信号和预定的CL阈值产生CL信号。 确定电路耦合到PWM电路和CL电路，用于根据PWM信号和CL信号产生操作信号。 功率级电路在ON阶段期间保持不低于保持电流的AC调光电流的绝对电平。

公开(公告)号：US20050287357A1

公开(公告)日：2005-12-29

申请号：US10926970

申请日：2004-08-27

申请人： Jyh Wang ,  Jen Chang ,  Kai-Hsin Lee ,  Wei-Ming Chiu

发明人： Jyh Wang ,  Jen Chang ,  Kai-Hsin Lee ,  Wei-Ming Chiu

IPC分类号： B28B1/00 ,  B29C47/06 ,  B32B5/16 ,  B32B7/02 ,  G02B5/02

CPC分类号： B29C48/21 ,  B29C48/08 ,  B29C48/30 ,  B29C48/307 ,  B32B7/02 ,  G02B5/0242 ,  G02B5/0278 ,  Y10T428/25

摘要： A light diffusion sheet with high surface hardness and method of manufacturing the same is used in the backlight of liquid crystal display and is made by multi-player plastic co-extrusion technology, which can produce light diffusion sheet structure of a plurality layers. The structure is to propose at least a high surface hardness layer on the light diffusion sheet as producing backlight module with direct light of liquid crystal display so as to achieve the resistance to scratch. Therefore, it can prevent from the scratch caused by the hardness stuffs such as fingers, dust, module frame, and so on in the assembling, delivery, or packing processes, and further facilitate the mass production, reduce the manufacturing cost, and increase the yield ratio of assembling significantly.

摘要翻译： 具有高表面硬度的光扩散片及其制造方法在液晶显示器的背光中使用，并且可以通过多玩家塑料共挤出技术制成，其可以产生多层的光扩散片结构。 该结构是在光扩散片上提出至少一个高表面硬度层，以产生具有液晶显示器的直接光的背光模块，以达到耐擦伤性。 因此，能够防止在组装，输送或包装过程中由手指，灰尘，模块框架等硬度物质引起的划痕，进一步促进批量生产，降低制造成本，并增加 组合产量比显着。