公开(公告)号：US20050116745A1

公开(公告)日：2005-06-02

申请号：US10978628

申请日：2004-11-01

申请人： Chih-Wen Huang ,  Pao-Cheng Chiu

发明人： Chih-Wen Huang ,  Pao-Cheng Chiu

IPC分类号： H03B1/00 ,  H04L25/02

CPC分类号： H04L25/0278 ,  H04L25/028

摘要： A signal transmitting apparatus being used in a network device includes a voltage-controlled current source for outputting a current signal according to an input digital signal; a line driver for outputting a voltage signal according to the current signal; at least one impedance-matching unit, which is coupled to the line driver, for impedance-matching at the output of the line driver; and a first correction unit, which is coupled to the voltage-controlled current source, for outputting a first correction signal to adjust the current signal outputted from the voltage-controlled current source.

摘要翻译： 在网络装置中使用的信号发送装置包括用于根据输入数字信号输出电流信号的压控电流源; 线驱动器，用于根据当前信号输出电压信号; 耦合到线路驱动器的至少一个阻抗匹配单元，用于在线路驱动器的输出处进行阻抗匹配; 以及第一校正单元，其耦合到压控电流源，用于输出第一校正信号以调整从压控电流源输出的电流信号。

公开(公告)号：US07212044B2

公开(公告)日：2007-05-01

申请号：US10978628

申请日：2004-11-01

申请人： Chih-Wen Huang ,  Pao-Cheng Chiu

发明人： Chih-Wen Huang ,  Pao-Cheng Chiu

IPC分类号： H03B1/00

CPC分类号： H04L25/0278 ,  H04L25/028

摘要： A signal transmitting apparatus being used in a network device includes a voltage-controlled current source for outputting a current signal according to an input digital signal; a line driver for outputting a voltage signal according to the current signal; at least one impedance-matching unit, which is coupled to the line driver, for impedance-matching at the output of the line driver; and a first correction unit, which is coupled to the voltage-controlled current source, for outputting a first correction signal to adjust the current signal outputted from the voltage-controlled current source.

摘要翻译： 在网络装置中使用的信号发送装置包括用于根据输入数字信号输出电流信号的压控电流源; 线驱动器，用于根据当前信号输出电压信号; 耦合到线路驱动器的至少一个阻抗匹配单元，用于在线路驱动器的输出处进行阻抗匹配; 以及第一校正单元，其耦合到压控电流源，用于输出第一校正信号以调整从压控电流源输出的电流信号。

公开(公告)号：US07936180B2

公开(公告)日：2011-05-03

申请号：US12265774

申请日：2008-11-06

申请人： Kuan-Hua Chao ,  Chih-Chien Hung ,  Pao-Cheng Chiu

发明人： Kuan-Hua Chao ,  Chih-Chien Hung ,  Pao-Cheng Chiu

IPC分类号： H03K17/16 ,  H03K19/003

CPC分类号： G06F13/4072 ,  H04L25/0272 ,  H04L25/028 ,  Y02D10/14 ,  Y02D10/151

摘要： The invention provides a serial link transmitter coupled to a serial link receiver through a pair of transmission lines and having a pair of transmitting terminals respectively coupled to one of the transmission lines. The serial link transmitter comprises a differential amplifier and a voltage clamping circuit. The differential amplifier generates a pair of differential output voltages on the transmitting terminals according to a pair of differential input voltages for transmitting data to the serial link receiver, and the differential output voltages are transmitted with a common mode voltage to the serial link receiver during data transmission. The voltage clamping circuit clamps the pair of differential output voltages of the transmitting terminals to the common mode voltage before the serial link transmitter transmits data to the serial link receiver.

摘要翻译： 本发明提供一种串行链路发射机，其通过一对传输线耦合到串行链路接收机，并具有分别耦合到传输线之一的一对发射终端。 串行链路发射机包括差分放大器和钳位电路。 差分放大器根据用于将数据发送到串行链路接收机的一对差分输入电压在发送端子上产生一对差分输出电压，并且在数据期间差分输出电压以共模电压发送到串行链路接收器 传输。 在串行链路发射机向串行链路接收机发送数据之前，钳位电路将发送端子的差分输出电压对钳到共模电压。

公开(公告)号：US20100225515A1

公开(公告)日：2010-09-09

申请号：US12775543

申请日：2010-05-07

申请人： Zwei-Mei Lee ,  Kang-Wei Hsueh ,  Ya-Lun Yang ,  Hung-Sung Li ,  Pao-Cheng Chiu

发明人： Zwei-Mei Lee ,  Kang-Wei Hsueh ,  Ya-Lun Yang ,  Hung-Sung Li ,  Pao-Cheng Chiu

IPC分类号： H03M1/00 ,  G11C27/02 ,  H03M1/12

CPC分类号： H03M1/1038 ,  H03M1/0682 ,  H03M1/1245

摘要： A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switching circuits and a voltage generating unit. Each of the switching circuits includes a capacitor coupled between the first node and a second node. The voltage generating unit selectively provides a common signal or a reference signal to the capacitors of the switching circuits, wherein the reference signal is independent from the analog signal.

摘要翻译： 提供了一个跟踪和保持放大器。 轨道和保持放大器包括接收模拟信号的输入节点，耦合在第一节点和输出节点之间的缓冲器，耦合在输入节点和第一节点之间的第一开关，多个开关电路和电压产生单元。 每个开关电路包括耦合在第一节点和第二节点之间的电容器。 电压产生单元选择性地向切换电路的电容器提供公共信号或参考信号，其中参考信号独立于模拟信号。

公开(公告)号：US07768306B2

公开(公告)日：2010-08-03

申请号：US11533378

申请日：2006-09-20

申请人： Pao-Cheng Chiu

发明人： Pao-Cheng Chiu

IPC分类号： H03K19/0175 ,  H03L5/00 ,  G06F13/12

CPC分类号： H03K19/018514 ,  H03K19/094 ,  H03M9/00

摘要： A low to high voltage conversion output driver. The low to high voltage conversion output driver has an output coupled to a first fixed voltage via a load device and comprises a current source, a low voltage transistor, and a high voltage transistor. The current source has one end coupled to a second fixed voltage. The low voltage transistor has a first terminal coupled to the other end of the current source, a second terminal receiving a low voltage data signal, and a third terminal. The high voltage transistor has a first terminal coupled to the third terminal of the low voltage transistor, a second terminal coupled to a bias source, and a third terminal coupled to the output.

摘要翻译： 一个从低到高的电压转换输出驱动器。 低至高电压转换输出驱动器具有经由负载装置耦合到第一固定电压的输出，并且包括电流源，低压晶体管和高压晶体管。 电流源具有耦合到第二固定电压的一端。 低电压晶体管具有耦合到电流源的另一端的第一端子，接收低电压数据信号的第二端子和第三端子。 高压晶体管具有耦合到低电压晶体管的第三端子的第一端子，耦合到偏置源的第二端子和耦合到输出端的第三端子。

公开(公告)号：US20060022734A1

公开(公告)日：2006-02-02

申请号：US10773450

申请日：2004-12-02

申请人： Chen-Chih Huang ,  Pao-Cheng Chiu

发明人： Chen-Chih Huang ,  Pao-Cheng Chiu

IPC分类号： H03H11/16

CPC分类号： H03K5/088 ,  H03K5/13 ,  H03K2005/00286

摘要： The invention relates to a phase-interpolation circuit and a phase-interpolation signal generating circuit applying the phase-interpolation circuit. The phase-interpolation circuit can avoid short-circuit current effectively. In addition, an inter-phase signal can be interpolated between the rising edge and the falling edge of the clock pulse. The phase-interpolation signal generating device can generate multiphase clock signals which not only have linearly distributed phases but also maintain good 50% duty cycle of the multiphase clock signals.

摘要翻译： 本发明涉及一种应用相位插值电路的相位插值电路和相位插值信号产生电路。 相位插补电路可以有效地避免短路电流。 此外，可以在时钟脉冲的上升沿和下降沿之间插入相间信号。 相位插值信号发生装置可以产生不仅具有线性分布相位而且维持多相时钟信号的良好的50％占空比的多相时钟信号。

公开(公告)号：US20110116652A1

公开(公告)日：2011-05-19

申请号：US12621514

申请日：2009-11-19

申请人： Tsung-Kai Kao ,  Pao-Cheng Chiu ,  Chien-Ming Chen

发明人： Tsung-Kai Kao ,  Pao-Cheng Chiu ,  Chien-Ming Chen

IPC分类号： H04B15/00

CPC分类号： H03G3/348

摘要： A signal output device includes: a control circuit for receiving at least a first input control signal and outputting an output control signal according to at least the first input control signal, wherein the first input control signal comprises a first signal segment followed by a second signal segment; and a driver circuit, operated according to a supply power, for receiving the output control signal from the control circuit and selectively generating an output signal according to the output control signal; wherein the supply power is turned on before the second signal segment of the first input control signal is received by the control circuit; when the supply power is turned on, the driver circuit operates under a specific power state; and when the second signal segment of the first input control signal is received by the control circuit, the driver circuit keeps operating under the specific power state.

摘要翻译： 信号输出装置包括：控制电路，用于至少接收第一输入控制信号并根据至少第一输入控制信号输出输出控制信号，其中第一输入控制信号包括第一信号段，随后是第二信号 分割; 以及驱动器电路，其根据供电功率操作，用于从所述控制电路接收所述输出控制信号，并根据所述输出控制信号有选择地产生输出信号; 其中在由所述控制电路接收到所述第一输入控制信号的所述第二信号段之前所述供电电源接通; 当电源接通时，驱动电路在特定功率状态下工作; 并且当控制电路接收到第一输入控制信号的第二信号段时，驱动电路在特定功率状态下保持运行。

公开(公告)号：US20110012644A1

公开(公告)日：2011-01-20

申请号：US12503105

申请日：2009-07-15

申请人： Pao-Cheng Chiu

发明人： Pao-Cheng Chiu

IPC分类号： G11C27/02

CPC分类号： G11C27/026 ,  H03K5/249

摘要： A sampling circuit includes an amplifier, a sampling capacitor, a feedback capacitor, and a voltage source. The sampling capacitor and the feedback capacitor are coupled to the same input terminal of the amplifier, such that the offset of the amplifier and low-frequency noise can be cancelled. The voltage source can shift the voltage level of an output signal of the sampling circuit by the difference between the input and output common mode voltages of the amplifier, so that an amplifier having different input common mode voltage and output common mode voltage can be adopted, and the capacitance of the sampling capacitor and that of the feedback capacitor can be different, resulting in a non-unit gain.

摘要翻译： 采样电路包括放大器，采样电容器，反馈电容器和电压源。 采样电容器和反馈电容器耦合到放大器的相同输入端，使得放大器的偏移和低频噪声可以被消除。 电压源可以通过放大器的输入和输出共模电压之间的差异来移位采样电路的输出信号的电压电平，从而可以采用具有不同输入共模电压和输出共模电压的放大器， 并且采样电容器和反馈电容器的电容可以不同，导致非单位增益。

公开(公告)号：US07741984B2

公开(公告)日：2010-06-22

申请号：US12236755

申请日：2008-09-24

申请人： Zwei-Mei Lee ,  Kang-Wei Hsueh ,  Ya-Lun Yang ,  Hung-Sung Li ,  Pao-Cheng Chiu

发明人： Zwei-Mei Lee ,  Kang-Wei Hsueh ,  Ya-Lun Yang ,  Hung-Sung Li ,  Pao-Cheng Chiu

IPC分类号： H03M1/00

CPC分类号： H03M1/1038 ,  H03M1/0682 ,  H03M1/1245

摘要： A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switching circuits and a voltage generating unit. Each of the switching circuits includes a capacitor coupled between the first node and a second node. The voltage generating unit selectively provides a common signal and a reference signal to the capacitors of the switching circuits, wherein the reference signal is independent from the analog signal and the common signal.

摘要翻译： 提供了一个跟踪和保持放大器。 轨道和保持放大器包括接收模拟信号的输入节点，耦合在第一节点和输出节点之间的缓冲器，耦合在输入节点和第一节点之间的第一开关，多个开关电路和电压产生单元。 每个开关电路包括耦合在第一节点和第二节点之间的电容器。 电压产生单元选择性地向开关电路的电容器提供公共信号和参考信号，其中参考信号与模拟信号和公共信号无关。

公开(公告)号：US06940333B2

公开(公告)日：2005-09-06

申请号：US10708327

申请日：2004-02-24

申请人： Pao-Cheng Chiu ,  Mu-Jung Chen

发明人： Pao-Cheng Chiu ,  Mu-Jung Chen

IPC分类号： H03K19/0185 ,  H03L5/00

CPC分类号： H03K19/018521

摘要： A high-to-low level shifter, coupled to a first external signal, for transforming the first external signal into an internal signal, wherein the first external signal substantially switches between a high-voltage-domain high potential and a high-voltage-domain low potential, the internal signal substantially switches between a low-voltage-domain high potential and a low-voltage-domain low potential. The high-to-low level shifter includes: an inverter, for generating a second external signal according to the first external signal, wherein the second external signal is inverse to the first external signal; and a level shifter, for generating the internal signal according to the first external signal and the second external signal.

摘要翻译： 耦合到第一外部信号的高到低电平移位器，用于将第一外部信号变换为内部信号，其中第一外部信号基本上在高电压域高电位和高电压域之间切换 低电位，内部信号基本上在低电压域高电位和低电压域低电位之间切换。 高电平移位器包括：逆变器，用于根据第一外部信号产生第二外部信号，其中第二外部信号与第一外部信号相反; 以及电平移位器，用于根据第一外部信号和第二外部信号产生内部信号。