公开(公告)号：USD1031152S1

公开(公告)日：2024-06-11

申请号：US29824315

申请日：2022-01-24

申请人： Xiaoyong Li

设计人： Xiaoyong Li

摘要： FIG. 1 is a front, right, and top perspective view of a hair dryer, showing my design.
FIG. 2 is a rear, left, and bottom perspective view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a right side elevation view thereof.
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings are included for the purpose of illustrating portions of the hair dryer that form no part of the claimed design.

公开(公告)号：US08373509B2

公开(公告)日：2013-02-12

申请号：US13370146

申请日：2012-02-09

申请人： Yi Zeng ,  Xiaoyong Li ,  Rahul A Apte

发明人： Yi Zeng ,  Xiaoyong Li ,  Rahul A Apte

IPC分类号： H03F1/26

CPC分类号： H03F1/0205 ,  H01B3/004 ,  H03F1/26 ,  H03F1/42 ,  H03F3/195 ,  H03F3/211 ,  H03F3/347 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451

摘要： Techniques to improve low noise amplifiers (LNAs) with noise canceling are described. LNA includes a first and a second amplifier which work together to noise cancel the noise generated at an input stage circuit. The input stage circuit receives an RF signal and is characterized by a first node and a second node. The first amplifier converts a noise voltage at the first node into a first noise current at an output of the first amplifier. The second amplifier is directly coupled to the output of the first amplifier and provides noise canceling by summing the first noise current with a second noise current generated by the second amplifier as a function of the noise voltage at the second node. The proposed techniques eliminate the need for large ac coupling capacitors and reduce the die size occupied by the LNA.

摘要翻译： 描述了改进具有噪声消除的低噪声放大器（LNA）的技术。 LNA包括第一和第二放大器，它们一起工作来噪声消除在输入级电路处产生的噪声。 输入级电路接收RF信号，其特征在于第一节点和第二节点。 第一放大器将第一节点处的噪声电压转换为第一放大器的输出处的第一噪声电流。 第二放大器直接耦合到第一放大器的输出，并且通过将第一噪声电流与由第二放大器产生的第二噪声电流相加作为第二节点处的噪声电压的函数来提供噪声消除。 所提出的技术消除了对大型交流耦合电容器的需要，并且减小了LNA占用的管芯尺寸。

公开(公告)号：US07936220B2

公开(公告)日：2011-05-03

申请号：US12334306

申请日：2008-12-12

申请人： Xiaoyong Li ,  Sang-Oh Lee ,  Cormac S. Conroy

发明人： Xiaoyong Li ,  Sang-Oh Lee ,  Cormac S. Conroy

IPC分类号： H03F3/04

CPC分类号： H03F1/223 ,  H03F1/3205 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/168 ,  H03F2200/294 ,  H03F2200/456 ,  H03F2200/492

摘要： Techniques for improving the linearity of a cascode amplifier. In an exemplary embodiment, an auxiliary common-gate amplifier is provided in parallel with the principal cascode branch. The auxiliary common-gate amplifier samples a cascoded node in the principal cascode branch. The auxiliary common-gate amplifier generates a current which, when combined with the current generated by the principal cascode branch, cancels a distortion component to generate an output current with improved linearity characteristics. In an exemplary embodiment, a phase shifting network couples the cascoded node to the auxiliary common-gate amplifier, and may include, e.g., a capacitor coupled to an inductor.

摘要翻译： 提高共源共栅放大器线性度的技术。 在示例性实施例中，与主级联共模分支并联提供辅助共栅放大器。 辅助共栅放大器在主共线分支中采样级联节点。 辅助共栅放大器产生电流，当与由主级联共模分支产生的电流组合时，消除失真分量以产生具有改善的线性特性的输出电流。 在示例性实施例中，相移网络将级联节点耦合到辅助公共门放大器，并且可以包括例如耦合到电感器的电容器。

公开(公告)号：US07889464B2

公开(公告)日：2011-02-15

申请号：US11588044

申请日：2006-10-26

申请人： Wusheng Chen ,  Fu Wang ,  Yong Dai ,  Xiaoyong Li ,  Huaiyin Song

发明人： Wusheng Chen ,  Fu Wang ,  Yong Dai ,  Xiaoyong Li ,  Huaiyin Song

IPC分类号： H02H3/10

CPC分类号： H01H83/14 ,  H01H73/44 ,  H01H83/04

摘要： A leakage current detection interrupter with fire protection means, comprising: (i) a leakage current protection circuit, (ii) an electrical cord with metallic fire shields, and (iii) a fire protection circuit, wherein, in operation, the leakage current protection circuit and the fire protection circuit detect a fault condition including a leakage current, a ground fault and a fire hazard, and disconnect the source of electricity from the at least one user accessible load when leakage current, ground fault or fire hazard is detected. The electrical cord with metallic fire shields, the fire protection circuit, and the indicator circuit can be combined with any ground fault circuit interrupter, arc fault circuit interrupter, immerse detection circuit interrupter, appliance leakage current interrupter and electronic leakage current interrupter.

摘要翻译： 一种具有防火装置的泄漏电流检测中断器，包括：（i）泄漏电流保护电路，（ii）具有金属防火屏蔽的电线，以及（iii）防火电路，其中在工作中，所述漏电流保护 电路和消防电路检测包括漏电流，接地故障和火灾危险的故障状况，并且在检测到漏电流，接地故障或火灾危险时，断开电源与至少一个用户可触及的负载。 具有金属防火屏蔽的电线，防火电路和指示器电路可以与任何接地故障电路断路器，电弧故障电路断路器，浸没检测电路中断器，器具漏电断路器和电子漏电断路器组合。

公开(公告)号：US07414481B2

公开(公告)日：2008-08-19

申请号：US11344549

申请日：2006-01-30

申请人： Xiaoyong Li ,  David J. Allstot

发明人： Xiaoyong Li ,  David J. Allstot

IPC分类号： H03F1/22 ,  H03F3/45 ,  H03F1/00

CPC分类号： H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/0008

摘要： Embodiments of the present invention include a common-gate amplifier having an input terminal and an output terminal, a transistor having a source, a drain, and a gate, four inductors, and two capacitors, and a negative amplification circuitry. The negative amplification circuitry has an input terminal to receive an RF signal. The negative amplification circuitry applies negative or zero amplification to the RF signal and outputs the negative or zero amplified signal on an output terminal. Alternative embodiments include a Colpitts differential oscillator, which includes two Colpitts single-ended oscillators. Each Colpitts single-ended oscillator includes a transistor. The source of the transistor in one Colpitts single-ended oscillator may be capacitively coupled to the gate of the transistor in the other Colpitts single-ended oscillator.

摘要翻译： 本发明的实施例包括具有输入端和输出端的共栅放大器，具有源极，漏极和栅极的晶体管，四个电感器和两个电容器以及负极放大电路。 负放大电路具有用于接收RF信号的输入端。 负放大电路对RF信号施加负或零放大，并在输出端输出负或零放大信号。 替代实施例包括Colpitts差分振荡器，其包括两个Colpitts单端振荡器。 每个Colpitts单端振荡器都包括晶体管。 一个Colpitts单端振荡器中的晶体管的源极可以电容耦合到另一个Colpitts单端振荡器中的晶体管的栅极。

公开(公告)号：US20060198066A1

公开(公告)日：2006-09-07

申请号：US11184713

申请日：2005-07-19

申请人： Wusheng Chen ,  Yong Dai ,  Xiaoyong Li

发明人： Wusheng Chen ,  Yong Dai ,  Xiaoyong Li

IPC分类号： H02H9/08

CPC分类号： H01H83/04 ,  H01H51/12 ,  H01H51/2209 ,  H01H89/08 ,  H01R13/5205 ,  H02H9/042

摘要： A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure. In one embodiment, the permanent-magnet mechanism includes a frame assembly having a crossbeam, a frame pressure post and a core connecting post positioned at each side of the crossbeam, a core attached to the core connecting post and positioned inside a coil assembly, a spring sleeved on the core connecting post and positioned therebetween an inner cam of the coil assembly and the crossbeam of the frame assembly; a circuit-breaking coil and a circuit-connecting coil wound on the coil assembly, respectively, a permanently magnet positioned proximately to the core, a pair of movable contact arms with each having one movable contact positioned at each lateral side of the frame pressure post for communicating with the frame assembly, a pair of fixed contacts positioned above the corresponding movable contacts, and a metal oxide varistor with one end electrically connected to a first terminal of a power source directly and the other end electrically connected to a second terminal of the power source from a load side across a circuit breaker.

摘要翻译： 一种具有自诊断功能的永磁接地故障电路断路器插头，具有外壳和外壳内的永磁机构。 在一个实施例中，永磁体机构包括框架组件，其具有横梁，框架压力柱和位于横梁的每一侧的芯连接柱，连接到芯连接柱并定位在线圈组件内的芯体， 弹簧套在芯连接柱上并定位在线圈组件的内凸轮和框架组件的横梁之间; 卷绕在线圈组件上的断路线圈和电路连接线圈分别设置在靠近芯部的永久磁铁;一对可动触头臂，每个可动接触臂具有位于框架压力柱的每个侧面的一个可动触头 用于与框架组件连通，位于相应的可动触头上方的一对固定触点，以及金属氧化物压敏电阻，其一端直接电连接到电源的第一端子，另一端电连接到电源的第二端子 通过断路器的负载侧的电源。

公开(公告)号：US08355752B2

公开(公告)日：2013-01-15

申请号：US12610600

申请日：2009-11-02

申请人： Pushp Trikha ,  Luca Blessent ,  Xiaoyong Li ,  Rahul A. Apte

发明人： Pushp Trikha ,  Luca Blessent ,  Xiaoyong Li ,  Rahul A. Apte

IPC分类号： H04M1/00 ,  H04B1/16 ,  H04B7/00 ,  H04B1/10

CPC分类号： H04B1/1036 ,  H04B1/14 ,  H04B1/3805 ,  H04B15/04

摘要： A cellular telephone includes cellular telephone circuitry and an FM receiver. An FM signal being received is downconverted by a mixer. The downconverted signal is processed to generate an FM signal that is supplied to a digital IF filter. If a blocker emitted by the cellular telephone circuitry would interfere with receiving of the FM signal due to interaction of an LO harmonic with the blocker if a conventional LO frequency were used, then a different LO frequency is used. Subsequent processing of the downconverted FM signal (for example, by a digital complex conjugate selector and an IF rotator) results in the signal supplied to the digital IF filter having the same center frequency as the digital IF filter despite the use of the different LO frequency. In some embodiments, the LO is shifted by different amounts depending on cellular telephone mode and on the FM signal.

摘要翻译： 蜂窝电话包括蜂窝电话电路和FM接收机。 接收的FM信号由混频器下变频。 处理下变频信号以产生提供给数字IF滤波器的FM信号。 如果使用蜂窝电话线路发射的阻塞器将干扰由于LO谐波与阻塞器的相互作用而导致的FM信号的接收，如果使用常规LO频率，则使用不同的LO频率。 下变频FM信号的后续处理（例如，通过数字复共轭选择器和IF旋转器）导致提供给数字IF滤波器的信号具有与数字IF滤波器相同的中心频率，尽管使用不同的LO频率 。 在一些实施例中，根据蜂窝电话模式和FM信号，LO偏移不同的量。

公开(公告)号：US07902923B2

公开(公告)日：2011-03-08

申请号：US12407704

申请日：2009-03-19

申请人： Xiaoyong Li ,  Rahul A. Apte

发明人： Xiaoyong Li ,  Rahul A. Apte

IPC分类号： H03F3/68

CPC分类号： H03F3/193 ,  H03F1/26 ,  H03F3/3022 ,  H03F3/45179

摘要： Techniques for integrating a common-source and common-gate amplifier topology in a single amplifier design. In one aspect, an input voltage is provided to both a common-source amplifier and a common-gate amplifier. The output voltages of the common-source amplifier and the common-gate amplifier are provided to a difference block for generating a single-ended voltage proportional to the difference between the output voltages. When applied to the design of, e.g., low-noise amplifiers (LNA's), the disclosed techniques may offer improved noise performance over the prior art.

摘要翻译： 用于在单个放大器设计中集成公共源和公共门放大器拓扑的技术。 在一个方面，输入电压被提供给共源放大器和公共门放大器。 共源极放大器和公共栅极放大器的输出电压被提供给差分块，用于产生与输出电压之间的差成比例的单端电压。 当应用于例如低噪声放大器（LNA's）的设计时，所公开的技术可以提供比现有技术更好的噪声性能。

公开(公告)号：US20110009161A1

公开(公告)日：2011-01-13

申请号：US12610600

申请日：2009-11-02

申请人： Pushp Trikha ,  Luca Blessent ,  Xiaoyong Li ,  Rahul A. Apte

发明人： Pushp Trikha ,  Luca Blessent ,  Xiaoyong Li ,  Rahul A. Apte

IPC分类号： H04W92/02

CPC分类号： H04B1/1036 ,  H04B1/14 ,  H04B1/3805 ,  H04B15/04

摘要： A cellular telephone includes cellular telephone circuitry and an FM receiver. An FM signal being received is downconverted by a mixer. The downconverted signal is processed to generate an FM signal that is supplied to a digital IF filter. If a blocker emitted by the cellular telephone circuitry would interfere with receiving of the FM signal due to interaction of an LO harmonic with the blocker if a conventional LO frequency were used, then a different LO frequency is used. Subsequent processing of the downconverted FM signal (for example, by a digital complex conjugate selector and an IF rotator) results in the signal supplied to the digital IF filter having the same center frequency as the digital IF filter despite the use of the different LO frequency. In some embodiments, the LO is shifted by different amounts depending on cellular telephone mode and on the FM signal.

摘要翻译： 蜂窝电话包括蜂窝电话电路和FM接收机。 接收的FM信号由混频器下变频。 处理下变频信号以产生提供给数字IF滤波器的FM信号。 如果使用蜂窝电话线路发射的阻塞器将干扰由于LO谐波与阻塞器的相互作用而导致的FM信号的接收，如果使用常规LO频率，则使用不同的LO频率。 下变频FM信号的后续处理（例如，通过数字复共轭选择器和IF旋转器）导致提供给数字IF滤波器的信号具有与数字IF滤波器相同的中心频率，尽管使用不同的LO频率 。 在一些实施例中，根据蜂窝电话模式和FM信号，LO偏移不同的量。

公开(公告)号：US07755442B2

公开(公告)日：2010-07-13

申请号：US12188135

申请日：2008-08-07

申请人： Xiaoyong Li ,  David J. Allstot

发明人： Xiaoyong Li ,  David J. Allstot

IPC分类号： H03B5/08

CPC分类号： H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/0008

摘要： Embodiments of the present invention include a common-gate amplifier having an input terminal and an output terminal, a transistor having a source, a drain, and a gate, four inductors, and two capacitors, and a negative amplification circuitry. The negative amplification circuitry has an input terminal to receive an RF signal. The negative amplification circuitry applies negative or zero amplification to the RF signal and outputs the negative or zero amplified signal on an output terminal. Alternative embodiments include a Colpitts differential oscillator, which includes two Colpitts single-ended oscillators. Each Colpitts single-ended oscillator includes a transistor. The source of the transistor in one Colpitts single-ended oscillator may be capacitively coupled to the gate of the transistor in the other Colpitts single-ended oscillator.

摘要翻译： 本发明的实施例包括具有输入端和输出端的共栅放大器，具有源极，漏极和栅极的晶体管，四个电感器和两个电容器以及负极放大电路。 负放大电路具有用于接收RF信号的输入端。 负放大电路对RF信号施加负或零放大，并在输出端输出负或零放大信号。 替代实施例包括Colpitts差分振荡器，其包括两个Colpitts单端振荡器。 每个Colpitts单端振荡器都包括晶体管。 一个Colpitts单端振荡器中的晶体管的源极可以电容耦合到另一个Colpitts单端振荡器中的晶体管的栅极。