公开(公告)号：US6131495A

公开(公告)日：2000-10-17

申请号：US333020

申请日：1999-06-15

Applicant: Jin-Fu Chen

Inventor： Jin-Fu Chen

IPC: B25B7/00 ,  B25B7/02

CPC classification number: B25B7/00

Abstract: A tool includes two grips and at least one tool head. The grips can be opened to different extents so as to rotate the fixing pins of the grips relative to the openings of the tool head. Accordingly, the short sides of the fixing pins can be respectively aligned with the openings to permit the detachment of the grips from the tool head. Otherwise, the grips are stopped by the long sides of the fixing, pins from detaching from the tool head. The grips can be easily and quickly assembled with or disassembled from the tool head. In addition, the replacement of the tool head can be performed by hand without using any tool or switch. Also, the tool has fewer components which are not easy to miss.

Abstract translation: 一个工具包括两个把手和至少一个工具头。 把手可以打开到不同的程度，以便使把手的固定销相对于工具头的开口旋转。 因此，固定销的短边可以分别与开口对准，以允许把手从工具头部脱离。 否则，夹具被固定的长边挡住，销从工具头脱离。 手柄可以方便快捷地与工具头组装或拆卸。 此外，可以手工更换刀头，而不使用任何刀具或开关。 此外，该工具具有较少的组件，这是不容易错过的。

公开(公告)号：US5760634A

公开(公告)日：1998-06-02

申请号：US710184

申请日：1996-09-12

Applicant: Shiu-Jin Fu

Inventor： Shiu-Jin Fu

IPC: H03K19/003 ,  H03K19/017 ,  H03K19/0944 ,  H03K17/16 ,  H03K19/0185

CPC classification number: H03K19/00361 ,  H03K19/01721

Abstract: An output buffer device utilizes a PMOS transistor as a first pull-up element and an NMOS transistor as a second pull-up element. An output signal is used to control a feedback circuit. An output signal is switched from a low to high voltage by a trigger voltage. The first pull-up element switches to the second pull-up element to complete the voltage switching from low to high. The device combines the high speed of the first pull-up element and the low noise of the second pull-up element.

Abstract translation: 输出缓冲器件利用PMOS晶体管作为第一上拉元件和NMOS晶体管作为第二上拉元件。 输出信号用于控制反馈电路。 输出信号通过触发电压从低电平切换到高电压。 第一上拉元件切换到第二上拉元件以完成从低到高的电压切换。 该装置结合了第一上拉元件的高速度和第二上拉元件的低噪声。

公开(公告)号：US11345000B2

公开(公告)日：2022-05-31

申请号：US16419330

申请日：2019-05-22

Applicant: Jin Fu Chen

Inventor： Jin Fu Chen

IPC: B25B7/04 ,  B25B7/10

Abstract: A pliers has guiding surfaces at tooth portions of the first pliers body and tooth portions of the engaging unit of the control member. Therefore, when the pressing block of the control member is not pressed, even if the first pliers body is engaged with the tooth portions of the engaging unit, the second pliers body can still be pushed forward relative to the first pliers body, so that the second guiding surfaces of the second tooth portions of the engaging unit slide relative to the first guiding surfaces of the first tooth portions and each of the first tooth portions is moved to engage with a next corresponding second tooth portion, thereby allowing the second pliers portion being movable toward the first pliers portion. Hence, the clamping distance of the pliers can be adjusted to match with an object to be clamped.

公开(公告)号：US09497713B2

公开(公告)日：2016-11-15

申请号：US13993833

申请日：2011-12-29

Applicant: Rongzhen Yang ,  Jin Fu ,  Huaning Niu ,  Hujun Yin

Inventor： Rongzhen Yang ,  Jin Fu ,  Huaning Niu ,  Hujun Yin

IPC: H04W52/00 ,  H04W52/24 ,  H04W72/12 ,  H04W72/08 ,  H04W88/06 ,  H04B7/06 ,  H04L1/06 ,  H04W72/04 ,  H04B15/00 ,  H04W8/02 ,  H04W24/00 ,  H04W52/02 ,  H04L5/00 ,  H04L27/34 ,  H04L5/14 ,  H04W4/00 ,  H04W72/02 ,  H04W76/02 ,  H04W52/14 ,  H04W24/08 ,  H04L27/36 ,  H04L1/00 ,  H04W52/32 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04B7/0697 ,  H04B15/00 ,  H04L1/0025 ,  H04L1/0038 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/06 ,  H04L5/0037 ,  H04L5/14 ,  H04L27/34 ,  H04L27/362 ,  H04W4/70 ,  H04W8/02 ,  H04W24/00 ,  H04W24/08 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0251 ,  H04W52/0258 ,  H04W52/143 ,  H04W52/242 ,  H04W52/244 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1278 ,  H04W76/19 ,  H04W76/28 ,  H04W84/042 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

Abstract: A user equipment (UE) is arranged to send an uplink power reference signal to an enhanced Node B (eNB) associated with multiple reception points (RPs), to receive identification of an RP set and a downlink reference signal power level, to determine a path loss estimate for each downlink reference signal received from RPs of the RP set, to determine an uplink power level that is a function of the path loss estimates determined for the downlink signals received from the RPs of the RP set, and to use the determined uplink power level during communication with the multiple RPs.

Abstract translation: 用户设备（UE）被配置为向与多个接收点（RP）相关联的增强型节点B（eNB）发送上行链路功率参考信号，以接收RP集合的标识和下行链路参考信号功率电平，以确定 确定从RP集合的RP接收的下行链路信号确定的路径损耗估计的函数的上行链路功率电平，并使用确定的路径损耗估计 与多个RP通信期间的上行功率电平。

公开(公告)号：US20130281130A1

公开(公告)日：2013-10-24

申请号：US13976953

申请日：2011-12-16

Applicant: Rongzhen Yang ,  Hujun Yin ,  Jin Fu

Inventor： Rongzhen Yang ,  Hujun Yin ,  Jin Fu

IPC: H04W4/02

CPC classification number: H04W4/02 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0252 ,  G01S19/09 ,  G01S19/48

Abstract: An apparatus may include a communication interface and a processor circuit. The apparatus may further include a location analyzing module operable on the processor circuit to receive a first set of location information including a first radio information item from a first radio of a first wireless terminal via the communication interface, to scan a second set of location information to identify a second radio information item matching the first radio information item, and to index the second radio information item to a location entry in the second set of location information to determine a refined location for the first wireless terminal. Other embodiments are disclosed and claimed.

Abstract translation: 一种装置可以包括通信接口和处理器电路。 所述设备还可以包括位置分析模块，其可在所述处理器电路上操作以经由所述通信接口从所述第一无线终端的第一无线电接收包括第一无线电信息项的第一组位置信息，以扫描第二组位置信息 识别与第一无线电信息项相匹配的第二无线电信息项，并将第二无线电信息项索引到第二组位置信息中的位置条目，以确定第一无线终端的精细位置。 公开和要求保护其他实施例。

公开(公告)号：US08472993B2

公开(公告)日：2013-06-25

申请号：US12969819

申请日：2010-12-16

Applicant: Rongzhen Yang ,  Hujun Yin ,  Jin Fu

Inventor： Rongzhen Yang ,  Hujun Yin ,  Jin Fu

IPC: H04B7/00 ,  H04W52/04

CPC classification number: H04W52/16 ,  H04W52/241 ,  H04W52/242

Abstract: Briefly, in accordance with one or more embodiments, a pathloss gap between a downlink pathloss from a base station to a mobile station and an uplink pathloss from the mobile station to the base station is estimated. An initial offset value for uplink power control of the estimated pathloss gap is calculated based at least in part on said estimating. An offset value for an uplink data channel or an uplink control channel, or combinations thereof, is set based at least in part on the initial offset value. The pathloss gap for uplink power control is compensated using the set offset value.

Abstract translation: 简而言之，根据一个或多个实施例，估计从基站到移动站的下行链路路径损耗与从移动站到基站的上行链路路径损耗之间的路径损耗差距。 至少部分地基于所述估计来计算估计路径损耗间隙的上行链路功率控制的初始偏移值。 至少部分地基于初始偏移值来设置上行链路数据信道或上行链路控制信道的偏移值或其组合。 上行链路功率控制的路径损耗间隙使用设定的补偿值进行补偿。

公开(公告)号：US08299837B1

公开(公告)日：2012-10-30

申请号：US13211292

申请日：2011-08-16

Applicant: Jin-Fu Lin

Inventor： Jin-Fu Lin

IPC: G06F7/64

CPC classification number: H03F3/005

Abstract: A pseudo-differential switched-capacitor circuit, which can be applied to various signal processing circuits, employs a floating sampling technique and an integrator feedback loop for isolating a common mode voltage disturbance and restraining a charge injection effect. The pseudo-differential switched-capacitor circuit includes a differential floating sampling circuit that has a pseudo-differential architecture, and an integrator for reducing the charge injection effect within the differential floating sampling circuit.

Abstract translation: 可以应用于各种信号处理电路的伪差分开关电容电路采用浮动采样技术和积分器反馈回路，用于隔离共模电压扰动并抑制电荷注入效应。 伪差分开关电容电路包括具有伪差分架构的差分浮动采样电路和用于降低差分浮动采样电路内的电荷注入效应的积分器。

公开(公告)号：US20120112944A1

公开(公告)日：2012-05-10

申请号：US12941510

申请日：2010-11-08

Applicant: Soon-Jyh Chang ,  Jin-Fu Lin

Inventor： Soon-Jyh Chang ,  Jin-Fu Lin

IPC: H03M1/66

CPC classification number: H03M1/0653 ,  H03M1/806

Abstract: The present invention is directed to a multiplying digital-to-analog converter (MDAC) and its method. First ends of capacitors are electrically coupled to an inverting input node of an amplifier, wherein two of the capacitors are alternatively configured as a feedback capacitor. Each capacitor is composed of at least two sub-capacitors. Second ends of capacitors are electrically coupled to an input signal via a number of sampling switches, and the second ends of the capacitors are electrically coupled to DAC voltages respectively via a number of amplifying switches. A sorting circuit is configured to sort the sub-capacitors, wherein the sorted sub-capacitors are then paired in a manner such that variance of mismatch among the sub-capacitors is thus averaged.

Abstract translation: 本发明涉及一种乘法数模转换器（MDAC）及其方法。 电容器的第一端电耦合到放大器的反相输入节点，其中两个电容器被配置为反馈电容器。 每个电容器由至少两个子电容器组成。 电容器的第二端通过多个采样开关电耦合到输入信号，并且电容器的第二端分别经由多个放大开关电耦合到DAC电压。 排序电路被配置为对子电容器进行排序，其中分选的子电容器然后被配对，使得子电容器之间的失配的变化因此被平均化。

公开(公告)号：US20120098597A1

公开(公告)日：2012-04-26

申请号：US12995279

申请日：2010-10-21

Applicant: ChangMing Wei ,  Yu Zhang ,  Lixin Jiang ,  Jin Fu Chen ,  Jeffrey G. Barrow

Inventor： ChangMing Wei ,  Yu Zhang ,  Lixin Jiang ,  Jin Fu Chen ,  Jeffrey G. Barrow

IPC: H03F3/45 ,  H03K17/687

CPC classification number: H03F3/45475 ,  H03F2203/45534 ,  H03F2203/45536 ,  H03G1/0088 ,  H03K17/063 ,  H03K17/6872 ,  H03K17/6877 ,  H03K2017/066 ,  H03K2217/0054

Abstract: A switch circuit is provided. The switch circuit may include a first transistor having a source terminal to accept an input signal, a drain terminal to provide an output signal, and a gate; a power supply providing a gate voltage. The switch circuit may also include a circuit to couple a switch signal to the gate, wherein the circuit turns the first transistor ‘off’ for all values of the input signal when the switch signal is ‘low.’ A programmable gain amplifier (PGA) is also provided. The PGA may include an input stage having an input node to couple an input signal, and an output node to provide a gate signal, at least a first gain stage including a resistor and a switch circuit as above. A differential gain amplifier may be included to provide an output signal from the gain signal.

Abstract translation: 提供开关电路。 开关电路可以包括具有用于接收输入信号的源极端子的第一晶体管，提供输出信号的漏极端子和栅极; 提供栅极电压的电源。 开关电路还可以包括用于将开关信号耦合到栅极的电路，其中当开关信号为“低”时，该电路使第一晶体管关断输入信号的所有值。可编程增益放大器（PGA） 也提供。 PGA可以包括输入级，其具有用于耦合输入信号的输入节点和输出节点以提供门信号，至少第一增益级包括如上所述的电阻器和开关电路。 可以包括差分增益放大器以从增益信号提供输出信号。

公开(公告)号：US20120011970A1

公开(公告)日：2012-01-19

申请号：US12838083

申请日：2010-07-16

Applicant: Jin Fu Chen

Inventor： Jin Fu Chen

IPC: B25B7/02

CPC classification number: B25B7/08

Abstract: Pliers with a restoring function include an elastic element and two pliers bodies. The elastic element has two urging ends. The two pliers bodies have two pinching heads, two handles, and two pivotal parts. Each of the pivotal parts has a recess and a pivotal hole. A pivotal element goes through the two pivotal holes. The elastic element is disposed in the two recesses and penetrated by the pivotal element. Both urging ends of the elastic element are on opposite sides of the two recesses to urge sidewalls of the recesses, thereby opening the pliers. A buffer region is designed in each of the recesses for the corresponding urging end. When the opening angle of the pliers is greater than that is supported by the elastic element, at least one urging end of the elastic element releases its urging against the recess sidewall and moves in the buffer region. The pliers become relaxed then.

Abstract translation: 具有恢复功能的钳子包括弹性元件和两个钳子体。 弹性元件具有两个推压端。 两个钳子主体有两个夹头，两个手柄和两个枢轴部分。 每个枢转部分具有凹部和枢转孔。 一个关键元素穿过两个枢轴孔。 弹性元件设置在两个凹部中并被枢转元件贯穿。 弹性元件的两个推动端在两个凹部的相对侧上，以推动凹部的侧壁，从而打开钳子。 在相应的推动端的每个凹部中设计缓冲区。 当钳子的打开角度大于由弹性元件支撑的开口角度时，弹性元件的至少一个推动端释放其抵靠凹口侧壁的推动并在缓冲区域中移动。 然后钳子变松了。