公开(公告)号：US20110169587A1

公开(公告)日：2011-07-14

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： H01P5/12

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：US07696822B2

公开(公告)日：2010-04-13

申请号：US12134014

申请日：2008-06-05

申请人： Po-Chih Wang

发明人： Po-Chih Wang

IPC分类号： H03F1/26

CPC分类号： H03F1/3211 ,  H03F1/3276 ,  H03F1/56 ,  H03F3/45475 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2203/45136 ,  H03F2203/45544

摘要： An amplifying circuit and an associated linearity improving method are provided to correct the AM to PM distortion of an amplifier, thereby improving the amplifier linearity. The amplifying circuit includes an amplifier and a correcting unit. The amplifier has a non-linear input capacitor. The correcting unit generates a correction signal according to an input signal of the amplifier, and performs an AM to PM correction according to the correction signal, thereby making the amplifier have an approximately linear equivalent input capacitor.

摘要翻译： 提供放大电路和相关的线性度改善方法来校正放大器的AM至PM失真，从而提高放大器的线性度。 放大电路包括放大器和校正单元。 该放大器具有非线性输入电容。 校正单元根据放大器的输入信号产生校正信号，并根据校正信号进行AM至PM校正，从而使放大器具有近似线性的等效输入电容器。

公开(公告)号：US07663444B2

公开(公告)日：2010-02-16

申请号：US11858137

申请日：2007-09-20

申请人： Po-Chih Wang

发明人： Po-Chih Wang

IPC分类号： H03F3/191

CPC分类号： H03F3/191

摘要： An apparatus for amplifying an input signal is disclosed. The apparatus includes a first amplifying circuit and a first resonating circuit. The first amplifying circuit includes a first transistor having a first gate for receiving the input signal. The first amplifying circuit amplifies the input signal to generate a first output signal. The first resonating circuit is coupled to the first amplifying circuit, wherein a first resonating frequency of the first resonating circuit is not equal to the operating frequency.

摘要翻译： 公开了一种用于放大输入信号的装置。 该装置包括第一放大电路和第一谐振电路。 第一放大电路包括具有用于接收输入信号的第一栅极的第一晶体管。 第一放大电路放大输入信号以产生第一输出信号。 第一谐振电路耦合到第一放大电路，其中第一谐振电路的第一谐振频率不等于工作频率。

公开(公告)号：US5379130A

公开(公告)日：1995-01-03

申请号：US984325

申请日：1992-12-02

申请人： Te-Mei Wang ,  Po-Chih Wang ,  King-Lung Huang

发明人： Te-Mei Wang ,  Po-Chih Wang ,  King-Lung Huang

IPC分类号： H04N1/40 ,  H04N1/405

CPC分类号： H04N1/40062 ,  H04N1/405

摘要： A text/image separation method is disclosed which handles the text segment and the image of a document to be printed in a separate and parallel fashion to provide a better printing quality of the document.

摘要翻译： 公开了一种文本/图像分离方法，其处理以单独和平行方式打印的文本段和文档的图像，以提供文档的更好的打印质量。

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：US20120007675A1

公开(公告)日：2012-01-12

申请号：US13176343

申请日：2011-07-05

申请人： Po-Chih Wang

发明人： Po-Chih Wang

IPC分类号： H03F3/45

CPC分类号： H03F3/45179 ,  H03F1/0272 ,  H03F1/223 ,  H03F1/3211 ,  H03F3/193 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/18 ,  H03F2200/411 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2200/99 ,  H03F2203/45112 ,  H03F2203/45481 ,  H03F2203/45544 ,  H03F2203/45554 ,  H03F2203/45604

摘要： A power amplifier is provided. The power amplifier includes a loading circuit, a first stage amplifying circuit, an analog pre-distorter, a loading circuit and a second stage amplifying circuit. The first stage amplifying circuit is coupled to the loading circuit to receive a first signal and output a second signal accordingly. The analog pre-distorter is coupled to the first stage amplifying circuit to detect the envelope of the second signal and generates a third signal according to the envelope. The second stage amplifying circuit is coupled to the first stage amplifying circuit to receive the second signal. The loading circuit is biased on the third signal. The gain of the first stage amplifying circuit is related to the third signal.

摘要翻译： 提供功率放大器。 功率放大器包括负载电路，第一级放大电路，模拟预失真器，负载电路和第二级放大电路。 第一级放大电路耦合到负载电路以接收第一信号并相应地输出第二信号。 模拟预失真器耦合到第一级放大电路以检测第二信号的包络并根据包络产生第三信号。 第二级放大电路耦合到第一级放大电路以接收第二信号。 加载电路偏置在第三个信号上。 第一级放大电路的增益与第三信号有关。

公开(公告)号：US20110297976A1

公开(公告)日：2011-12-08

申请号：US13114942

申请日：2011-05-24

申请人： Tzu-Hao Chao ,  Po-Chih Wang

发明人： Tzu-Hao Chao ,  Po-Chih Wang

IPC分类号： H01L33/08

CPC分类号： H01L25/0753 ,  F21K9/00 ,  H01L25/167 ,  H01L33/64 ,  H01L2924/0002 ,  H05B33/0821 ,  H01L2924/00

摘要： An illumination module including a substrate and a plurality of first and second LED chips is provided. The substrate has a plurality of device bonding areas, and each of device bonding areas has two sub-device bonding areas. Each sub-device bonding area has a first, second, and common route. The first routes surround the outer peripheries of each device bonding area. The second routes are located between the two sub-device bonding areas. The common routes are located between the first and second routes. The first LED chips located at the common routes are electrically connected to each other. The second LED chips located at the first and second routes respectly are electrically connected to each other.

摘要翻译： 提供了包括基板和多个第一和第二LED芯片的照明模块。 基板具有多个器件接合区域，并且每个器件接合区域具有两个子器件接合区域。 每个子设备结合区域具有第一，第二和公共路线。 第一条路线围绕每个设备连接区域的外围。 第二路由位于两个子设备连接区域之间。 公共路由位于第一和第二路由之间。 位于公共路线上的第一LED芯片彼此电连接。 位于第一和第二路线的第二LED芯片相互电连接。

公开(公告)号：US07498861B2

公开(公告)日：2009-03-03

申请号：US11730908

申请日：2007-04-04

申请人： Po-Chih Wang

发明人： Po-Chih Wang

IPC分类号： G06G7/12

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0043 ,  H03D2200/0084

摘要： A mixer includes first to fourth NMOS transistors, first and second switches, first to fourth current sources, a first impedance and a second impedance. The first NMOS transistor has a drain coupled to the first impedance and a drain of the third NMOS transistor, and a gate for receiving a positive input signal. The second NMOS transistor has a drain coupled to the second impedance and a drain of the fourth NMOS transistor, and a gate for receiving a negative input signal. Gates of the third and fourth NMOS transistors respectively receive the negative and positive input signals. The first switch is coupled between sources of the first and second NMOS transistors. The second switch is coupled between sources of the third and fourth NMOS transistors. The first to fourth current sources maintain constant currents flowing through the sources of the first to fourth NMOS transistors, respectively.

摘要翻译： 混频器包括第一至第四NMOS晶体管，第一和第二开关，第一至第四电流源，第一阻抗和第二阻抗。 第一NMOS晶体管具有耦合到第一阻抗的漏极和第三NMOS晶体管的漏极，以及用于接收正输入信号的栅极。 第二NMOS晶体管具有耦合到第二阻抗的漏极和第四NMOS晶体管的漏极，以及用于接收负输入信号的栅极。 第三和第四NMOS晶体管的栅极分别接收负输入信号和正输入信号。 第一开关耦合在第一和第二NMOS晶体管的源极之间。 第二开关耦合在第三和第四NMOS晶体管的源极之间。 第一至第四电流源分别保持流过第一至第四NMOS晶体管的源极的恒定电流。