公开(公告)号：US09232598B2

公开(公告)日：2016-01-05

申请号：US13467048

申请日：2012-05-09

Applicant: Shu-Min Lin ,  Jyi-Si Lo ,  Ying-Hsi Lin

Inventor： Shu-Min Lin ,  Jyi-Si Lo ,  Ying-Hsi Lin

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0851

Abstract: An operating circuit applied to a backlight includes at least one current control circuit, where the current control circuit includes a transistor, an operational amplifier and a switch module. The transistor has a gate, a first electrode and a second electrode, where the first electrode is coupled to a lighting element, and the second electrode is coupled to a resistor. The operational amplifier has positive and negative input terminals, and positive and negative output terminals. The switch module switches a connection relationship between the positive input terminal, the negative input terminal, the reference voltage and the second electrode of the transistor, and switches a connection relationship between the positive output terminal, the negative output terminal and the gate of the transistor to make the close loop form a negative feedback, and the current of the lighting element not influenced by an offset voltage of the operational amplifier.

Abstract translation: 应用于背光的操作电路包括至少一个电流控制电路，其中电流控制电路包括晶体管，运算放大器和开关模块。 晶体管具有栅极，第一电极和第二电极，其中第一电极耦合到照明元件，并且第二电极耦合到电阻器。 运算放大器具有正负输入端子，正负输出端子。 开关模块切换正输入端子，负输入端子，参考电压和晶体管的第二电极之间的连接关系，并切换正输出端子，负输出端子和晶体管的栅极之间的连接关系 使闭环形成负反馈，并且照明元件的电流不受运算放大器的偏移电压的影响。

公开(公告)号：US09060399B2

公开(公告)日：2015-06-16

申请号：US13468001

申请日：2012-05-09

Applicant: Shu-Min Lin ,  Jyi-Si Lo ,  Ying-Hsi Lin

Inventor： Shu-Min Lin ,  Jyi-Si Lo ,  Ying-Hsi Lin

IPC: H05B33/08

CPC classification number: H05B33/0827 ,  H05B33/0815 ,  Y02B20/347

Abstract: An operating circuit applied to a backlight is provided, where the backlight includes a plurality of lighting elements, and the operating circuit includes a plurality of current control circuits, a plurality of switches, a minimum voltage selector, a supply voltage generating circuit and a control unit. The current control circuits are coupled to the lighting elements via a plurality of nodes, respectively. The switches are coupled to the nodes, respectively. The minimum voltage selector is utilized for receiving at least a portion of voltages of the plurality of nodes, and selecting a minimum voltage among the received voltages. The supply voltage generating circuit is utilized for generating a supply voltage of the lighting elements according to the minimum voltage. For each of the switches, the control unit determines an on/off state of the switch by determining whether the corresponding lighting element is an open circuit or not.

Abstract translation: 提供了一种应用于背光源的工作电路，其中背光源包括多个照明元件，并且操作电路包括多个电流控制电路，多个开关，最小电压选择器，电源电压发生电路和控制 单元。 电流控制电路分别通过多个节点耦合到照明元件。 开关分别耦合到节点。 最小电压选择器用于接收多个节点的至少一部分电压，并且选择接收电压中的最小电压。 电源电压产生电路用于根据最小电压产生照明元件的电源电压。 对于每个开关，控制单元通过确定对应的照明元件是否是开路来确定开关的开/关状态。

公开(公告)号：US20130278320A1

公开(公告)日：2013-10-24

申请号：US13609288

申请日：2012-09-11

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

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

IPC: G06G7/12

CPC classification number: H03D7/1441 ,  H03D7/1458

Abstract: 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.

Abstract translation: 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：US08515379B2

公开(公告)日：2013-08-20

申请号：US13174975

申请日：2011-07-01

Applicant: Hong-Ta Hsu ,  Ying-Hsi Lin

Inventor： Hong-Ta Hsu ,  Ying-Hsi Lin

IPC: H04B1/10

CPC classification number: H04B1/16 ,  H04B1/0475 ,  H04B1/30 ,  H04L27/0002 ,  H04L27/0014 ,  H04L2027/0018

Abstract: An adjusting method for reducing local oscillation leakage or I/Q mismatch in a receiver includes the steps of: (a) detecting a current extent of local oscillation leakage or I/Q mismatch; (b) determining if an adjusting direction is correct with reference to the current extent of local oscillation leakage or I/Q mismatch thus detected, maintaining the adjusting direction if correct, and reversing the adjusting direction upon determining that the adjusting direction is incorrect; and (c) adjusting a control signal according to the adjusting direction.

公开(公告)号：US20110261911A1

公开(公告)日：2011-10-27

申请号：US13174975

申请日：2011-07-01

Applicant: Hong-Ta Hsu ,  Ying-Hsi Lin

Inventor： Hong-Ta Hsu ,  Ying-Hsi Lin

IPC: H04B1/12 ,  H04B1/10

CPC classification number: H04B1/16 ,  H04B1/0475 ,  H04B1/30 ,  H04L27/0002 ,  H04L27/0014 ,  H04L2027/0018

Abstract: An adjusting method for reducing local oscillation leakage or I/Q mismatch in a receiver includes the steps of: (a) detecting a current extent of local oscillation leakage or I/Q mismatch; (b) determining if an adjusting direction is correct with reference to the current extent of local oscillation leakage or I/Q mismatch thus detected, maintaining the adjusting direction if correct, and reversing the adjusting direction upon determining that the adjusting direction is incorrect; and (c) adjusting a control signal according to the adjusting direction.

Abstract translation: 用于减少接收机中局部振荡泄漏或I / Q不匹配的调整方法包括以下步骤：（a）检测当前的本地振荡泄漏或I / Q失配的程度; （b）参照当前的本地振荡泄漏程度或如此检测到的I / Q失配来确定调整方向是否正确，如果正确则保持调节方向，并在确定调节方向不正确时反转调节方向; 和（c）根据调整方向调整控制信号。

公开(公告)号：US07738852B2

公开(公告)日：2010-06-15

申请号：US11567222

申请日：2006-12-06

Applicant: Ying-Yao Lin ,  Ying-Hsi Lin

Inventor： Ying-Yao Lin ,  Ying-Hsi Lin

IPC: H04B1/26

CPC classification number: H03D7/1441 ,  H03D7/1433 ,  H03D7/1458 ,  H03D2200/0084

Abstract: Disclosed is a mixer comprising: a switching circuit, having a first pair of differential signal nodes and a second pair of differential signal nodes, for switching according to a local oscillation signal; an amplifying stage circuit, for receiving an input signal and amplifying the input signal; a load circuit, for serving as the loading of the mixer and generating an output signal of the mixer; a common-mode feedback circuit, for receiving the output signal and generating a feedback signal according to the output signal; a first current source, for receiving the feedback signal and generating a first current according to the feedback signal; and a second current source, for receiving the feedback signal and generating a second current according to the feedback signal.

Abstract translation: 公开了一种混频器，包括：开关电路，具有第一对差分信号节点和第二对​​差分信号节点，用于根据本地振荡信号进行切换; 放大级电路，用于接收输入信号并放大输入信号; 负载电路，用作混频器的负载并产生混频器的输出信号; 共模反馈电路，用于接收输出信号并根据输出信号产生反馈信号; 第一电流源，用于接收所述反馈信号并根据所述反馈信号产生第一电流; 和第二电流源，用于接收反馈信号并根据反馈信号产生第二电流。

公开(公告)号：US07636405B2

公开(公告)日：2009-12-22

申请号：US10908109

申请日：2005-04-28

Applicant: Chao-Cheng Lee ,  Ying-Yao Lin ,  Ying-Hsi Lin

Inventor： Chao-Cheng Lee ,  Ying-Yao Lin ,  Ying-Hsi Lin

IPC: H04L1/00

CPC classification number: H04B1/30 ,  H04B17/11

Abstract: A method and device for calibrating in-phase and quadrature-phase (IQ) mismatch. The device is used in a direct down-conversion circuit of a communication system. The device has a first mixer for mixing an RF signal with a first carrier signal, so as to generate an in-phase analog signal; a second mixer for mixing the RF signal with a second carrier signal, so as to generate a quadrature-phase analog signal; an operation unit for executing a Least Mean Square (LMS) algorithm and thereby generating a compensation signal according to the in-phase analog signal and the quadrature-phase analog signal; and a calibration unit for compensating the in-phase analog signal and the quadrature-phase analog signal according to the compensation signal, so as to calibrate the IQ mismatch between the in-phase analog signal and the quadrature-phase analog signal.

Abstract translation: 用于校准同相和正交相（IQ）失配的方法和装置。 该设备用于通信系统的直接下变频电路。 该装置具有用于混合RF信号与第一载波信号的第一混频器，以产生同相模拟信号; 第二混频器，用于将RF信号与第二载波信号混频，以产生正交相位模拟信号; 操作单元，用于执行最小均方（LMS）算法，从而根据同相模拟信号和正交相位模拟信号产生补偿信号; 以及校准单元，用于根据补偿信号补偿同相模拟信号和正交相位模拟信号，以便校准同相模拟信号和正交相位模拟信号之间的IQ失配。

公开(公告)号：US07375577B2

公开(公告)日：2008-05-20

申请号：US11161247

申请日：2005-07-27

Applicant: Ying-Hsi Lin

Inventor： Ying-Hsi Lin

IPC: G06F7/44

CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D2200/0025 ,  H03D2200/0033 ,  H03D2200/0043 ,  H03D2200/0088

Abstract: A mixer capable of detecting or controlling a common mode voltage thereof, includes at least: a mixing module for mixing a first set of differential signals and a second set of differential signals to generate at least one mixed signal; and a compensation module for compensating at least one operation point of the mixing module.

Abstract translation: 能够检测或控制其共模电压的混频器至少包括：混合模块，用于混合第一组差分信号和第二组差分信号以产生至少一个混合信号; 以及用于补偿混合模块的至少一个操作点的补偿模块。

公开(公告)号：US20060040636A1

公开(公告)日：2006-02-23

申请号：US11161247

申请日：2005-07-27

Applicant: Ying-Hsi Lin

Inventor： Ying-Hsi Lin

IPC: H04B1/18 ,  H04B1/26

CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D2200/0025 ,  H03D2200/0033 ,  H03D2200/0043 ,  H03D2200/0088

Abstract: A mixer capable of detecting or controlling a common mode voltage thereof, includes at least: a mixing module for mixing a first set of differential signals and a second set of differential signals to generate at least one mixed signal; and a compensation module for compensating at least one operation point of the mixing module.

Abstract translation: 能够检测或控制其共模电压的混频器至少包括：混合模块，用于混合第一组差分信号和第二组差分信号以产生至少一个混合信号; 以及用于补偿混合模块的至少一个操作点的补偿模块。

公开(公告)号：US08922450B2

公开(公告)日：2014-12-30

申请号：US13612851

申请日：2012-09-13

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

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

IPC: H01Q1/50

CPC classification number: H01Q1/50

Abstract: 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.

Abstract translation: 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。