公开(公告)号：US08922450B2

公开(公告)日：2014-12-30

申请号：US13612851

申请日：2012-09-13

申请人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

发明人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

IPC分类号： H01Q1/50

CPC分类号： H01Q1/50

摘要： A signal converting circuit includes: a first switching circuit; a second switching circuit; and a first balance-unbalance circuit (Balun) having a first signal terminal coupled to an antenna, a second signal terminal coupled to the first switching circuit, and a third signal terminal coupled to the second switching circuit; wherein when the first balance-unbalance circuit operates in a first signal converting mode, the first switching circuit and the second switching circuit are arranged to couple the second signal terminal and the third signal terminal, respectively, to a first signal processing circuit, and when the first balance-unbalance circuit does not operate in the first signal converting mode, the first switching circuit and the second switching circuit are arranged to couple the second signal terminal and the third signal terminal, respectively, to a reference voltage.

摘要翻译： 信号转换电路包括：第一开关电路; 第二开关电路; 以及第一平衡不平衡电路（Balun），其具有耦合到天线的第一信号端子，耦合到所述第一开关电路的第二信号端子和耦合到所述第二开关电路的第三信号端子; 其中当所述第一平衡不平衡电路以第一信号转换模式工作时，所述第一开关电路和所述第二开关电路分别被布置成将所述第二信号端和所述第三信号端耦合到第一信号处理电路，并且当 第一平衡不平衡电路在第一信号转换模式中不工作，第一开关电路和第二开关电路分别被布置成将第二信号端子和第三信号端子耦合到参考电压。

公开(公告)号：US20130307620A1

公开(公告)日：2013-11-21

申请号：US13607830

申请日：2012-09-10

申请人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

发明人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

IPC分类号： H03G3/30 ,  H03F3/45

CPC分类号： H03F3/45 ,  H03F1/223 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45562 ,  H03F2203/45638

摘要： A signal amplifying circuit includes: an input stage circuit, arranged to receive an input signal; a first inductive device coupled between the input stage circuit and a first reference voltage; an output stage circuit arranged to generate an output signal according to the input signal; and a second inductive device coupled between the output stage circuit and a second reference voltage, wherein at least a part of a winding of the first inductive element is cross-coupled to at least a part of a winding of the second inductive element.

摘要翻译： 信号放大电路包括：输入级电路，用于接收输入信号; 耦合在所述输入级电路和第一参考电压之间的第一感应器件; 布置成根据输入信号产生输出信号的输出级电路; 以及耦合在所述输出级电路和第二参考电压之间的第二感应器件，其中所述第一电感元件的绕组的至少一部分与所述第二电感元件的绕组的至少一部分交叉耦合。

公开(公告)号：US07984861B2

公开(公告)日：2011-07-26

申请号：US12128353

申请日：2008-05-28

申请人： Chia-Jun Chang

发明人： Chia-Jun Chang

IPC分类号： G05D23/02 ,  G05D23/08

CPC分类号： E03C1/041 ,  Y10T137/0324 ,  Y10T137/0329 ,  Y10T137/7724 ,  Y10T137/7737

摘要： A hydrant apparatus comprises at least an outlet pipe, at least a switch for controlling the water flow, and at least a temperature limiting component. The outlet pipe is used for flowing water out of the hydrant apparatus. The switch, coupled to the outlet pipe, is used for controlling the water flow and adjusting the temperature of the water flow. The temperature limiting component limits the temperature of the water flow inside a predetermined range.

摘要翻译： 消防栓装置至少包括出口管，至少一个用于控制水流的开关和至少一个温度限制部件。 出水管用于将水从消防栓设备中流出。 耦合到出口管的开关用于控制水流并调节水流的温度。 温度限制部件将水流的温度限制在预定范围内。

公开(公告)号：US20080238538A1

公开(公告)日：2008-10-02

申请号：US12060849

申请日：2008-04-01

申请人： Pei-Ju Chiu ,  Chia-Jun Chang ,  Chao-Cheng Lee

发明人： Pei-Ju Chiu ,  Chia-Jun Chang ,  Chao-Cheng Lee

IPC分类号： H03F1/50

CPC分类号： H03F3/189 ,  H03F2200/271 ,  H03F2200/375 ,  H04B1/30

摘要： A receiving device includes a mixer, an AC coupling circuit, a post-stage circuit, and a DC offset calibration circuit. The mixer is utilized for mixing an input signal with a local oscillating (LO) signal from an oscillator to generate a converted signal. The AC coupling circuit is coupled to the mixer and utilized for reducing at least one portion of DC offset of the converted signal to generate a filtered signal. The post-stage circuit is coupled to the AC coupling circuit and utilized for processing the filtered signal to generate an output signal. The DC offset calibration circuit is coupled to the post-stage circuit and utilized for providing at least a compensation current for the post-stage circuit to reduce DC offset of the output signal.

摘要翻译： 接收装置包括混频器，AC耦合电路，后级电路和DC偏移校准电路。 混频器用于将输入信号与来自振荡器的本地振荡（LO）信号混合以产生转换的信号。 AC耦合电路耦合到混频器并用于减少转换信号的DC偏移的至少一部分以产生滤波信号。 后级电路耦合到AC耦合电路，用于处理滤波后的信号以产生输出信号。 DC偏移校准电路耦合到后级电路，并用于为后级电路提供至少一个补偿电流，以减少输出信号的DC偏移。

公开(公告)号：US20050151576A1

公开(公告)日：2005-07-14

申请号：US10907032

申请日：2005-03-17

申请人： Chao-Cheng Lee ,  Chia-Jun Chang

发明人： Chao-Cheng Lee ,  Chia-Jun Chang

IPC分类号： H02H3/20 ,  H03H11/12 ,  H03H11/24 ,  H03K5/00

CPC分类号： H03H11/245

摘要： An impedance apparatus for providing an equivalent impedance between a first node and a second node. The impedance apparatus includes a first impedance device having a first impedance value; a second impedance device having a second impedance value; a first switch element coupled to the first impedance device; a second switch element coupled to the second impedance device; and a controller coupled to the first switch element and the second switch element; wherein the first switch element is controlled by the controller to be periodically turned on and off, and the second switch element is controlled by the controller to be periodically turned on and off.

摘要翻译： 一种用于在第一节点和第二节点之间提供等效阻抗的阻抗装置。 阻抗装置包括具有第一阻抗值的第一阻抗装置; 具有第二阻抗值的第二阻抗器件; 耦合到所述第一阻抗装置的第一开关元件; 耦合到所述第二阻抗装置的第二开关元件; 以及耦合到所述第一开关元件和所述第二开关元件的控制器; 其中所述第一开关元件由所述控制器控制以周期性地接通和断开，并且所述第二开关元件由所述控制器控制以周期性地接通和断开。

公开(公告)号：US20130278320A1

公开(公告)日：2013-10-24

申请号：US13609288

申请日：2012-09-11

申请人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

发明人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

IPC分类号： G06G7/12

CPC分类号： H03D7/1441 ,  H03D7/1458

摘要： A mixer includes a transformer and a mixing circuit. The transformer is employed for receiving an input signal to generate a differential output. The mixing circuit is coupled to the transformer, and employed for mixing the differential output with N oscillating signals having different phases to generate a plurality of mixed output signals, wherein N is greater than 2.

摘要翻译： 混合器包括变压器和混合电路。 变压器用于接收输入信号以产生差分输出。 混合电路耦合到变压器，并用于将差分输出与具有不同相位的N个振荡信号混合以产生多个混合输出信号，其中N大于2。

公开(公告)号：US20060197588A1

公开(公告)日：2006-09-07

申请号：US11307985

申请日：2006-03-01

申请人： Chia-Jun Chang

发明人： Chia-Jun Chang

IPC分类号： H03K5/00

CPC分类号： H03H11/04 ,  H03H11/1286

摘要： A filtering device for filtering N input signals to generate a filtered signal. The filtering device includes an input module and a first circuit. The input module includes at least N impedance components. Each impedance component comprises a first end and a second end. The first end is utilized for receiving one of the N input signals. The first circuit includes a non-virtual ground input end coupled to the second ends of the N impedance components, and an amplifier including a first input end and an output end. There are multiple feedback (MFB) paths between the first input end and the output end. The MFB paths are coupled to the non-virtual ground input end. The output end of the amplifier is utilized for outputting the filtered signal. The first circuit and the input module form an MFB filter.

摘要翻译： 一种用于滤波N个输入信号以产生滤波信号的滤波装置。 滤波装置包括输入模块和第一电路。 输入模块至少包括N个阻抗分量。 每个阻抗部件包括第一端和第二端。 第一端用于接收N个输入信号中的一个。 第一电路包括耦合到N个阻抗分量的第二端的非虚拟接地输入端，以及包括第一输入端和输出端的放大器。 在第一输入端和输出端之间有多个反馈（MFB）路径。 MFB路径耦合到非虚拟地面输入端。 放大器的输出端用于输出滤波信号。 第一个电路和输入模块形成一个MFB滤波器。

公开(公告)号：US08860507B2

公开(公告)日：2014-10-14

申请号：US13615567

申请日：2012-09-13

申请人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

发明人： Hsien-Ku Chen ,  Chia-Jun Chang ,  Ka-Un Chan ,  Ying-Hsi Lin

IPC分类号： H03F3/45

CPC分类号： H03F3/45 ,  H03F1/223 ,  H03F3/195 ,  H03F3/26 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45394 ,  H03F2203/45621 ,  H03F2203/45638

摘要： An amplifier includes a transformer and a first stage gain circuit. The transformer includes a primary coil and a secondary coil. The primary coil is utilized for receiving an input signal. The first stage gain circuit has a first input port, which is coupled to the primary coil. The first stage gain circuit is utilized for gaining the input signal so as to generate a first output.

摘要翻译： 放大器包括变压器和第一级增益电路。 变压器包括初级线圈和次级线圈。 初级线圈用于接收输入信号。 第一级增益电路具有耦合到初级线圈的第一输入端口。 第一级增益电路用于获得输入信号以产生第一输出。

公开(公告)号：US08472894B2

公开(公告)日：2013-06-25

申请号：US12979354

申请日：2010-12-28

申请人： Po-Chih Wang ,  Chia-Jun Chang

发明人： Po-Chih Wang ,  Chia-Jun Chang

IPC分类号： H03C1/52

CPC分类号： H04B1/52 ,  H03H2007/386

摘要： A signal transmitting/receiving circuit includes a transmitter, a receiver, a balun and an impedance matching circuit. The transmitter is utilized for transmitting an output signal. The receiver is utilized for receiving an input signal. The balun includes a first input terminal, a second input terminal and an output terminal. The impedance matching circuit, which is coupled between the transmitter, the receiver, and the balun, provides transmitting impedance when the transmitter transmits the output signal such that an output signal may be output at an output terminal of the balun via a transmitting path. Also, the impedance matching circuit provides transmitting impedance when the receiver receives the input signal such that the input signal may be transmitted from the output terminal of the balun to the receiver via a receiving path.

摘要翻译： 信号发送/接收电路包括发射机，接收机，平衡 - 不平衡变换器和阻抗匹配电路。 发射机用于传输输出信号。 接收机用于接收输入信号。 平衡 - 不平衡变换器包括第一输入端子，第二输入端子和输出端子。 耦合在发送器，接收器和平衡 - 不平衡转换器之间的阻抗匹配电路在发送器发送输出信号时提供发送阻抗，使得可以经由发送路径在平衡 - 不平衡转换器的输出端子处输出输出信号。 此外，当接收器接收到输入信号时，阻抗匹配电路提供发射阻抗，使得输入信号可以经由接收路径从平衡 - 不平衡变换器的输出端发送到接收器。

公开(公告)号：US08095101B2

公开(公告)日：2012-01-10

申请号：US12060849

申请日：2008-04-01

申请人： Pei-Ju Chiu ,  Chia-Jun Chang ,  Chao-Cheng Lee

发明人： Pei-Ju Chiu ,  Chia-Jun Chang ,  Chao-Cheng Lee

IPC分类号： H04B1/06 ,  H04B7/00 ,  H04B1/28

CPC分类号： H03F3/189 ,  H03F2200/271 ,  H03F2200/375 ,  H04B1/30

摘要： A receiving device includes a mixer, an AC coupling circuit, a post-stage circuit, and a DC offset calibration circuit. The mixer is utilized for mixing an input signal with a local oscillating (LO) signal from an oscillator to generate a converted signal. The AC coupling circuit is coupled to the mixer and utilized for reducing at least one portion of DC offset of the converted signal to generate a filtered signal. The post-stage circuit is coupled to the AC coupling circuit and utilized for processing the filtered signal to generate an output signal. The DC offset calibration circuit is coupled to the post-stage circuit and utilized for providing at least a compensation current for the post-stage circuit to reduce DC offset of the output signal.

摘要翻译： 接收装置包括混频器，AC耦合电路，后级电路和DC偏移校准电路。 混频器用于将输入信号与来自振荡器的本地振荡（LO）信号混合以产生转换的信号。 AC耦合电路耦合到混频器并用于减少转换信号的DC偏移的至少一部分以产生滤波信号。 后级电路耦合到AC耦合电路，用于处理滤波后的信号以产生输出信号。 DC偏移校准电路耦合到后级电路，并用于为后级电路提供至少一个补偿电流，以减少输出信号的DC偏移。