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    • 12. 发明授权
    • Timing controller and clock signal detection circuit thereof
    • 定时控制器及其时钟信号检测电路
    • US08390614B2
    • 2013-03-05
    • US12719649
    • 2010-03-08
    • Wen-Teng FanShih-Chun Lin
    • Wen-Teng FanShih-Chun Lin
    • G06F3/038G09G5/00
    • G06F3/038H03L7/06
    • The clock signal detection circuit includes a lock detection circuit, a duty cycle detection circuit, a first logic circuit, and a counter. The lock detection circuit detects whether an input clock signal and a feedback clock signal of a delay locked loop are in phase. The duty cycle detection circuit detects whether the duty cycle of the input clock signal is within a percentage range. The first logic circuit, electrically connected to the lock detection circuit and the duty cycle detection circuit, outputs a detecting result signal which is at first logic level when the input clock signal are in phase with the feedback clock signal, and the duty cycle of the input clock signal is within a percentage range. The counter outputs a lock detection signal which is at the first logic level when the detecting result signal has maintained at the first logic level for a first constant period of time.
    • 时钟信号检测电路包括锁定检测电路,占空比检测电路,第一逻辑电路和计数器。 锁定检测电路检测延迟锁定环路的输入时钟信号和反馈时钟信号是否同相。 占空比检测电路检测输入时钟信号的占空比是否在百分比范围内。 与锁定检测电路和占空比检测电路电连接的第一逻辑电路输出当输入时钟信号与反馈时钟信号同相时处于第一逻辑电平的检测结果信号, 输入时钟信号在百分比范围内。 当检测结果信号在第一恒定时间段内保持在第一逻辑电平时,计数器输出处于第一逻辑电平的锁定检测信号。
    • 13. 发明授权
    • Spread-spectrum generator
    • 扩频发生器
    • US08180006B2
    • 2012-05-15
    • US12540817
    • 2009-08-13
    • Wen-Teng FanShih-Chun Lin
    • Wen-Teng FanShih-Chun Lin
    • H04L7/00H03D3/24H04B1/00
    • H04B15/06H04B2215/064H04B2215/067
    • A spread-spectrum generator is provided. The spread-spectrum generator includes a delay module and a control module. The delay module is controlled by a first control signal to delay an input signal by a delay time, and thereby generate a delay signal. The control module is coupled to the delay module for detecting a first edge of the delay signal, and thereby generating the first control signal. Accordingly, the spread-spectrum generator can spread the frequency of the input signal by delaying the input signal by various delay time, and the spread-spectrum generator can also reduce electromagnetic interference (EMI).
    • 提供扩频发生器。 扩频发生器包括延迟模块和控制模块。 延迟模块由第一控制信号控制,以将输入信号延迟延迟时间,从而产生延迟信号。 控制模块耦合到延迟模块,用于检测延迟信号的第一边缘,从而产生第一控制信号。 因此,扩频发生器可以通过延迟输入信号各种延迟时间来扩展输入信号的频率,扩频发生器也可以减小电磁干扰(EMI)。
    • 16. 发明授权
    • Integrated circuit capable of synchronizing multiple outputs of buffers
    • 能够同步多个缓冲器输出的集成电路
    • US07639227B2
    • 2009-12-29
    • US11380009
    • 2006-04-25
    • Kai-Lan ChuangChuan-Che LeeWen-Teng Fan
    • Kai-Lan ChuangChuan-Che LeeWen-Teng Fan
    • G09G3/36
    • G09G3/3688G09G3/2092
    • A source driver of an LCD includes a first and second power sources, a first and second inversion units, a first and second charging switches, and a first and second discharging switches. The first charging switch is coupled to the first power source, a first end of the first inversion unit, and a second end of the second inversion unit. The second charging switch is coupled to the first power source, a first end of the second inversion unit, and a second end of the first inversion unit. The first discharging switch is coupled to the second power source, the second end of the first inversion unit, and the first end of the second inversion unit. The second discharging switch is coupled to the second power source, the second end of the second inversion unit, and the first end of the first inversion unit.
    • LCD的源极驱动器包括第一和第二电源,第一和第二反相单元,第一和第二充电开关以及第一和第二放电开关。 第一充电开关耦合到第一电源,第一反转单元的第一端和第二反转单元的第二端。 第二充电开关耦合到第一电源,第二反转单元的第一端和第一反转单元的第二端。 第一放电开关耦合到第二电源,第一反转单元的第二端和第二反转单元的第一端。 第二放电开关耦合到第二电源,第二反转单元的第二端和第一反转单元的第一端。
    • 17. 发明申请
    • SPREAD-SPECTRUM GENERATOR
    • 扩频发生器
    • US20110038397A1
    • 2011-02-17
    • US12540817
    • 2009-08-13
    • Wen-Teng FanShih-Chun Lin
    • Wen-Teng FanShih-Chun Lin
    • H04B1/69
    • H04B15/06H04B2215/064H04B2215/067
    • A spread-spectrum generator is provided. The spread-spectrum generator includes a delay module and a control module. The delay module is controlled by a first control signal to delay an input signal by a delay time, and thereby generate a delay signal. The control module is coupled to the delay module for detecting a first edge of the delay signal, and thereby generating the first control signal. Accordingly, the spread-spectrum generator can spread the frequency of the input signal by delaying the input signal by various delay time, and the spread-spectrum generator can also reduce electromagnetic interference (EMI).
    • 提供扩频发生器。 扩频发生器包括延迟模块和控制模块。 延迟模块由第一控制信号控制,以将输入信号延迟延迟时间,从而产生延迟信号。 控制模块耦合到延迟模块,用于检测延迟信号的第一边缘,从而产生第一控制信号。 因此,扩频发生器可以通过延迟输入信号各种延迟时间来扩展输入信号的频率,扩频发生器也可以减小电磁干扰(EMI)。
    • 19. 发明申请
    • LEVEL SHIFT CIRCUIT FOR A DRIVING CIRCUIT
    • 驱动电路的电平转换电路
    • US20090206878A1
    • 2009-08-20
    • US12031162
    • 2008-02-14
    • Wen-Teng Fan
    • Wen-Teng Fan
    • H03K19/0175
    • H03K3/356139
    • Provided is a level shift circuit for a driving circuit. The level shift circuit includes: a cross-coupled transistor pair, for receiving a first input signal and a second input signal and for providing a first output signal and a second output signal; a first transistor, coupled to a first power supply and to the cross-coupled transistor pair, further receiving a first control signal; a second transistor, coupled to the cross-coupled transistor pair and for receiving a second control signal; and a third transistor, coupled to the cross-coupled transistor pair and for receiving the second control signal. The first control signal, the second control signal, the first output signal and the second output signal are all referenced to the first power supply, and the first input signal and the second input signal are referenced to a second power supply lower than the first power supply.
    • 提供了一种用于驱动电路的电平移位电路。 电平移位电路包括:交叉耦合晶体管对,用于接收第一输入信号和第二输入信号,并用于提供第一输出信号和第二输出信号; 第一晶体管,耦合到第一电源和交叉耦合晶体管对,进一步接收第一控制信号; 第二晶体管,耦合到交叉耦合晶体管对并用于接收第二控制信号; 以及耦合到所述交叉耦合晶体管对并用于接收所述第二控制信号的第三晶体管。 第一控制信号,第二控制信号,第一输出信号和第二输出信号均以第一电源为基准,第一输入信号和第二输入信号参考低于第一电源的第二电源 供应。
    • 20. 发明授权
    • Phase selector
    • 相位选择器
    • US08222941B2
    • 2012-07-17
    • US12759886
    • 2010-04-14
    • Wen-Teng FanChan-Fei LinShih-Chun Lin
    • Wen-Teng FanChan-Fei LinShih-Chun Lin
    • H03L7/00
    • H03K5/135H03K2005/00052H03L7/0812
    • A phase selector including a plurality of buffers, a multiplexer, a first inverter, and a selecting circuit is provided. Each of the buffers provides a clock signal, and the clock signals have different phases. The multiplexer selectively outputs one of the clock signals as a switch signal according to a first control signal, wherein the first control signal is first portion of bits of a selecting signal. The input terminal of the first inverter receives a second control signal, wherein the second control signal is second portion of bits of the selecting signal, and the output terminal of the first inverter outputs an inverted signal. The selecting circuit transmits the second control signal of the selecting signal or the inverted signal to the output terminal of the phase selector according to the logic state of the switch signal.
    • 提供了包括多个缓冲器的相位选择器,多路复用器,第一反相器和选择电路。 每个缓冲器提供时钟信号,并且时钟信号具有不同的相位。 复用器根据第一控制信号选择性地输出其中一个时钟信号作为开关信号,其中第一控制信号是选择信号的位的第一部分。 第一反相器的输入端接收第二控制信号,其中第二控制信号是选择信号的位的第二部分,第一反相器的输出端输出反相信号。 选择电路根据开关信号的逻辑状态将选择信号或反相信号的第二控制信号发送到相位选择器的输出端。