公开(公告)号：US20060199559A1

公开(公告)日：2006-09-07

申请号：US11164883

申请日：2005-12-08

Applicant: Ying-Yao Lin ,  Ying-Hsi Lin

Inventor： Ying-Yao Lin ,  Ying-Hsi Lin

IPC: H04B1/18

CPC classification number: H04B1/0067

Abstract: A multi-band receiver is disclosed. The multi-band receiver includes a low-noise amplifier (LNA) and a mixer. The LNA includes a switched receiving circuit, a loading circuit, and a switching circuit. The switched receiving circuit has a first receiving circuit for receiving a first signal corresponding to a first frequency, and a second receiving circuit for receiving a second signal corresponding to a second frequency. The loading circuit is utilized for providing a specific load to the switched receiving circuit. The switching circuit is used for controlling whether the first signal or the second signal is transferred to the loading circuit. The mixer is coupled to the low-noise amplifier for receiving an output signal generated from the LNA and for down-converting the output signal.

Abstract translation: 公开了一种多频带接收机。 多频带接收机包括低噪声放大器（LNA）和混频器。 LNA包括开关接收电路，负载电路和开关电路。 切换接收电路具有用于接收对应于第一频率的第一信号的第一接收电路和用于接收对应于第二频率的第二信号的第二接收电路。 加载电路用于向切换的接收电路提供特定的负载。 开关电路用于控制第一信号或第二信号是否传送到负载电路。 混频器耦合到低噪声放大器，用于接收从LNA产生的输出信号，并对输出信号进行下变频。

公开(公告)号：US06822518B1

公开(公告)日：2004-11-23

申请号：US10249674

申请日：2003-04-29

Applicant: Ying-Hsi Lin ,  Chinq-Shiun Chiu

Inventor： Ying-Hsi Lin ,  Chinq-Shiun Chiu

IPC: H03F122

CPC classification number: H03F3/195 ,  H03F1/223 ,  H03F1/26 ,  H03F2200/294 ,  H03F2200/372

Abstract: A low noise amplifier (LNA) includes first and second transistors, an inductor, and a first resistor. The gate of the first transistor is connected to an RF input node, the source being connected to a first ground node. The source of the second transistor is connected to the drain of the first transistor, the drain of the second transistor being connected to an RF output node and the gate being connected to a first bias voltage. The first resistor and the inductor are connected in parallel between the RF output node and a supply voltage. The first resistor is selected such that the LNA resonant frequency is greater than 1.5 times an operating frequency. In a CMOS circuit, the source of the transistor in the current mirror circuit, the first ground node, and the capacitor are each connected to ground through three separate ground paths having parasitic inductances provided by three off-chip bonding wires.

Abstract translation: 低噪声放大器（LNA）包括第一和第二晶体管，电感器和第一电阻器。 第一晶体管的栅极连接到RF输入节点，源极连接到第一接地节点。 第二晶体管的源极连接到第一晶体管的漏极，第二晶体管的漏极连接到RF输出节点，栅极连接到第一偏置电压。 第一个电阻和电感并联在RF输出节点和电源电压之间。 选择第一电阻器使得LNA谐振频率大于工作频率的1.5倍。 在CMOS电路中，电流镜电路中的晶体管的源极，第一接地节点和电容器通过具有由三个片外键合线提供的寄生电感的三个独立的接地路径连接到地。

公开(公告)号：US09490858B2

公开(公告)日：2016-11-08

申请号：US12237827

申请日：2008-09-25

Applicant: Hong-Ta Hsu ,  Ying-Hsi Lin

Inventor： Hong-Ta Hsu ,  Ying-Hsi Lin

IPC: H04B1/16 ,  H04B1/04 ,  H04B1/30 ,  H04L27/00

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 transmitter 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: 用于减少发射机中本地振荡泄漏或I / Q失配的调节方法包括以下步骤：（a）检测当前振荡泄漏或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：US20140049441A1

公开(公告)日：2014-02-20

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。

公开(公告)号：US20140022018A1

公开(公告)日：2014-01-23

申请号：US13615567

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: H03G3/00

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

Abstract: 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.

Abstract translation: 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：US20120293084A1

公开(公告)日：2012-11-22

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: H05B37/02

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：US08253401B2

公开(公告)日：2012-08-28

申请号：US12557494

申请日：2009-09-10

Applicant: Ke-Horng Chen ,  Yu-Huei Lee ,  Shih-Jung Wang ,  Chun-Yu Hsieh ,  Ying-Hsi Lin

Inventor： Ke-Horng Chen ,  Yu-Huei Lee ,  Shih-Jung Wang ,  Chun-Yu Hsieh ,  Ying-Hsi Lin

IPC: G05F1/10

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: A voltage conversion apparatus includes a DC-to-DC conversion circuit, a sensing circuit, and a compensation circuit. The voltage conversion apparatus is capable of adaptively adjusting the system bandwidth according to the load. The system bandwidth is increased to make the converted voltage responding to the load rapidly when the voltage conversion apparatus is operated at a transient state; and the system bandwidth is decreased to increase the system stability when the voltage conversion circuit is operated at a steady state.

Abstract translation: 电压转换装置包括DC-DC转换电路，感测电路和补偿电路。 电压转换装置能够根据负载自适应地调整系统带宽。 当电压转换装置处于瞬态状态时，增加系统带宽以使转换的电压响应负载快速; 并且当电压转换电路在稳定状态下运行时，系统带宽减小以提高系统稳定性。

公开(公告)号：US20050180532A1

公开(公告)日：2005-08-18

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：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。