专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09680448B2 Gain-boosted n-path passive-mixer-first receiver with a single mixing step 有权
公开(公告)号：US09680448B2
公开(公告)日：2017-06-13
申请号：US14862392
申请日：2015-09-23
申请人： University of Macau
发明人： Pui-In Mak , Zhicheng Lin , Rui Paulo da Silva Martins
IPC分类号： H04B1/16 , H03H11/04 , H03H11/12 , H03H19/00 , H03F1/02 , H03F3/19 , H03F3/45 , H03B5/12
CPC分类号： H03H11/0472 , H03B5/1237 , H03B5/1246 , H03B2202/06 , H03F1/0205 , H03F3/19 , H03F3/45076 , H03F2200/294 , H03F2200/451 , H03H11/1291 , H03H19/002 , H03H19/004 , H03H2011/0483 , H03H2210/025 , H04B1/16 , H04B1/1638
摘要： The present invention discloses a gain-boosted n-path passive-mixer-first receiver. According to another aspect of the present disclosure, a gain-boosted n-path passive-mixer-first receiver is provided. The receiver includes a number n of switch-capacitor (sc) sets, a resistor, and a transconductance amplifier. The sc sets connect in parallel, and the sc sets have a first node and a second node. The resistor connects to the first node. The transconductance amplifier connects to the resistor and the second node.

2. 发明授权

US09946281B1 Limit cycle oscillation reduction for digital low dropout regulators 有权
公开(公告)号：US09946281B1
公开(公告)日：2018-04-17
申请号：US15427059
申请日：2017-02-08
申请人： University of Macau
发明人： Mo Huang , Yan Lu , Sai-Wang Sin , Seng-Pan U , Rui Paulo da Silva Martins
IPC分类号： G05F1/00 , G05F1/565 , G05F1/46 , G11C19/28
CPC分类号： G05F1/565 , G05F1/468 , G11C19/28
摘要： A method achieves minimum limit cycle oscillation (LCO) amplitude of a digital low dropout regulator (D-LDO) by adding auxiliary unit power transistors in parallel with the main PMOS array with selected unit strength and LCO mode. An improved D-LDO with reduced LCO amplitude includes an auxiliary power transistor array in selected strength driven by an output of a comparator in parallel with a main power transistor array.

3. 发明授权

US09751083B2 Electronic module for real-time droplet-position sensing and driving in digital microfluidic system 有权
公开(公告)号：US09751083B2
公开(公告)日：2017-09-05
申请号：US14680671
申请日：2015-04-07
申请人： University of Macau
发明人： Jie Gao , Tianlan Chen , Cheng Dong , Yanwei Jia , Pui-In Mak , Mang-I Vai , Rui Paulo da Silva Martins
IPC分类号： G01N27/27 , B01L3/00 , G01N27/447
CPC分类号： B01L3/502792 , B01L2200/143 , B01L2300/025 , B01L2300/0887 , B01L2400/0427 , G01N27/44704 , G01N27/44756 , G01N27/44791
摘要： According to one aspect of the present disclosure, a digital microfluidic system is provided. The digital microfluidic system includes a device, a control electronics, a field programmed gate array (FPGA), and a computer. The device includes a droplet on an electrode array, where the electrode array includes a plurality of electrodes. The control electronics connects to the device and provides an actuation pulse to the electrodes, where the control electronics generates a capacitance-derived frequency signal. The FPGA connects to the control electronics and collects the capacitance-derived frequency signal. The computer connects to the FPGA, the computer uses a frequency of the capacitance-derived frequency signal to calculate a precise droplet position and generates a duration voltage signal.

4. 发明授权

US09237055B2 ZigBee receiver exploiting an RF-to-BB current-reuse blixer and hybrid filter topology 有权
标题翻译： ZigBee接收机利用RF到BB电流复用混合器和混合滤波器拓扑
公开(公告)号：US09237055B2
公开(公告)日：2016-01-12
申请号：US14254318
申请日：2014-04-16
申请人： UNIVERSITY OF MACAU
发明人： Zhicheng Lin , Pui-In Mak , Rui Paulo da Silva Martins
IPC分类号： H04L27/00 , H04L27/38 , H04B1/12 , H04L27/34
CPC分类号： H03H11/04 , H03F3/193 , H03F3/45183 , H03F2200/294 , H03H7/38 , H03H11/1213 , H04B1/1036 , H04B1/123 , H04B2001/1072 , H04L27/3405 , H04L27/3809 , H04W4/80
摘要： A unified balun low noise amplifier (LNA) and I/Q mixer is provided as a single-chip design, and includes a passive/active gain-boosted balun-LNA-I/Q-mixer (blixer), a filter section and a buffer amplifier. The filter section includes an IF-noise-shaping transistorized current-mode lowpass filter sharing a common power supply with the blixer, which allows the blixer and lowpass filter to draw a single bias current. The filter section also includes a complex-pole load providing image rejection and channel selection.
摘要翻译：提供了一个统一的平衡 - 不平衡变压器低噪声放大器（LNA）和I / Q混频器作为单芯片设计，并包括一个无源/主动增益升压平衡 - 不平衡转换器 - LNA-I / Q-混频器（混合器），滤波器部分和缓冲放大器。滤波器部分包括一个中频噪声整形晶体管电流模式低通滤波器，与混合器共用一个公共电源，允许混频器和低通滤波器绘制单个偏置电流。滤波器部分还包括提供镜像抑制和通道选择的复极负载。

5. 发明授权

US09808800B2 Electrode-voltage waveform for droplet-velocity and chip-lifetime improvements of digital microfluidic systems 有权
公开(公告)号：US09808800B2
公开(公告)日：2017-11-07
申请号：US14683402
申请日：2015-04-10
申请人： University of Macau
发明人： Tianlan Chen , Cheng Dong , Jie Gao , Yanwei Jia , Pui-In Mak , Mang-I Vai , Rui Paulo da Silva Martins
IPC分类号： G01N27/447 , B01L3/00 , F04B19/00
CPC分类号： B01L3/50273 , B01L3/502792 , B01L2300/088 , B01L2300/089 , B01L2400/0427 , F04B19/006
摘要： According to one aspect of the present disclosure, a control-engaged electrode-driving method for droplet actuation is provided. The method includes, a first voltage is provided to a first electrode for licking off a droplet. A second voltage is naturally discharged to a third voltage for maintaining a droplet movement. A fourth voltage is provided to the first electrode for accelerating the droplet. Naturally discharging from the second voltage to the third voltage and providing the fourth voltage to the first electrode are repeated. The first voltage is provided to a second electrode when a centroid of the droplet reaching a centroid of the first electrode. Naturally discharging from the second voltage to the third voltage and providing the fourth voltage to the second electrode are repeated.

6. 发明授权

US09306540B2 IF-noise-shaping transistorized current-mode lowpass filter utilizing cross coupled transistors 有权
标题翻译：采用交叉耦合晶体管的IF噪声整形晶体管电流模式低通滤波器
公开(公告)号：US09306540B2
公开(公告)日：2016-04-05
申请号：US14255087
申请日：2014-04-17
申请人： UNIVERSITY OF MACAU
发明人： Zhicheng Lin , Pui-In Mak , Rui Paulo da Silva Martins
IPC分类号： H03B1/00 , H03H11/04 , H04B1/10 , H04W4/00 , H04B1/12 , H04L27/34 , H04L27/38 , H03H11/12 , H03H7/38
CPC分类号： H03H11/04 , H03F3/193 , H03F3/45183 , H03F2200/294 , H03H7/38 , H03H11/1213 , H04B1/1036 , H04B1/123 , H04B2001/1072 , H04L27/3405 , H04L27/3809 , H04W4/80
摘要： An IF-noise-shaping transistorized current-mode lowpass filter is applied to quadrature in a balanced circuit. A first pair of transistors receiving current inputs from a mixer are connected so that each of the first pair of transistors has its gate cross coupled to the output of the other of the first pair of transistors. A second pair of transistors are connected in series with respected outputs of respective ones of the first pair of transistors and having gates connected to a first common voltage node, and a capacitance is used to connect the current inputs of one of the first and second pairs of transistors. An active inductive load is connected between the current inputs of one of the first and second pairs of transistors.
摘要翻译：一个IF噪声整形晶体管电流模式低通滤波器被应用于平衡电路中的正交。连接从混合器接收电流输入的第一对晶体管，使得第一对晶体管中的每一个晶体管的栅极交叉耦合到第一对晶体管的另一个晶体管的输出端。第二对晶体管与第一对晶体管中相应的晶体管的相应输出串联连接，并且具有连接到第一公共电压节点的栅极，并且使用电容来连接第一对和第二对之一的电流输入的晶体管。有源电感负载连接在第一和第二对晶体管之一的电流输入端之间。

7. 发明授权

US09172337B2 Wideband driver amplifier 有权
标题翻译：宽带驱动放大器
公开(公告)号：US09172337B2
公开(公告)日：2015-10-27
申请号：US14073014
申请日：2013-11-06
申请人： University of Macau
发明人： Ka-Fai Un , Pui-In Mak , Rui Paulo da Silva Martins
IPC分类号： H03F3/193 , H03F3/21 , H03F1/22 , H03F3/45
CPC分类号： H03F3/193 , H03D7/1441 , H03D7/1458 , H03F1/223 , H03F3/21 , H03F3/45179 , H03F2200/336 , H03F2200/429 , H03F2203/45024 , H03F2203/45394
摘要： A wideband driver amplifier with embedded passive filtering and gain peaking is described. The wideband driver amplifier comprises a voltage to current circuit, a passive band-selection filter, and a current to voltage circuit. The driver amplifier features an Embedded CLC-Ladder band-selection filter and thereby immune to process variations.
摘要翻译：描述了具有嵌入式无源滤波和增益峰值的宽带驱动放大器。宽带驱动放大器包括电压 - 电流电路，无源频带选择滤波器和电流 - 电压电路。驱动器放大器具有嵌入式CLC梯形图带选择滤波器，从而免受过程变化的影响。

8. 发明授权

US09037100B1 Wireless transmitter 有权
标题翻译：无线发射机
公开(公告)号：US09037100B1
公开(公告)日：2015-05-19
申请号：US14073082
申请日：2013-11-06
申请人： University of Macau
发明人： Ka-Fai Un , Pui-In Mak , Rui Paulo da Silva Martins
IPC分类号： H04B1/04
CPC分类号： H04B1/0475
摘要： A wireless transmitter for resolving gain mismatch of TV band is disclosed. In one embodiment, a wireless transmitter comprises a two-stage 14-path harmonic-rejection mixer to manage harmonic rejection ratio in lower sub-bands, and a two-stage 6-path harmonic-rejection mixer to manage harmonic rejection ratio in upper sub-bands. The gain mismatch is resolved by selecting gain ratios of the first and the second stage of the two-stage 14-path harmonic-rejection mixer and the two-stage 6-path harmonic-rejection mixer.
摘要翻译：公开了一种用于分辨TV频带增益失配的无线发射机。在一个实施例中，无线发射机包括用于管理较低子带中的谐波抑制比的两级14路谐波抑制混频器，以及用于管理上级子谐波抑制比的两级6路谐波抑制混频器带。通过选择两级14通道谐波抑制混频器和两级6通道谐波抑制混频器的第一级和第二级的增益比来解决增益失配。

9. 发明授权

US08963639B2 Frequency compensation techniques for low-power and small-area multistage amplifiers 有权
标题翻译：低功率和小面积多级放大器的频率补偿技术
公开(公告)号：US08963639B2
公开(公告)日：2015-02-24
申请号：US13770020
申请日：2013-02-19
申请人： University of Macau
发明人： Zushu Yan , Pui-In Mak , Man-Kay Law , Rui Paulo da Silva Martins
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F2200/408 , H03F2203/45631 , H03F2203/45674
摘要： A three stage amplifier is provided and the three stage amplifier comprises a first gain stage, a second gain stage and a third gain stage wherein said first stage receives an amplifier input signal and said third gain stage outputs an amplifier output signal. The amplifier includes a feedback loop having a current buffer and a compensation capacitance provided from the output of said third gain stage to the output of the first gain stage. In addition, an active left half plane zero stage is embedded in said feedback loop for cancelling a parasitic pole of said feedback loop.
摘要翻译：提供三级放大器，三级放大器包括第一增益级，第二增益级和第三增益级，其中所述第一级接收放大器输入信号，并且所述第三增益级输出放大器输出信号。放大器包括具有电流缓冲器和从所述第三增益级的输出到第一增益级的输出的补偿电容的反馈回路。此外，在所述反馈回路中嵌入有效的左半平面零级，以消除所述反馈回路的寄生极。

10. 发明授权

US08829942B2 Comparator and calibration thereof 有权
标题翻译：比较器及其校准
公开(公告)号：US08829942B2
公开(公告)日：2014-09-09
申请号：US13675311
申请日：2012-11-13
申请人： University of Macau
发明人： Chi-Hang Chan , Yan Zhu , U-Fat Chio , Sai-Weng Sin , Seng-Pan U , Rui Paulo da Silva Martins
IPC分类号： H03K5/22
CPC分类号： H03K5/22
摘要： A comparator is provided and the comparator includes a comparing input unit and a latching unit. Wherein, the comparing input unit has a first input receiving a first comparing signal and has a second input receiving a second comparing signal. The comparing input unit drives a first intermediate node signal at a first intermediate node depending on the first comparing signal according to a first strobe signal, and the comparing input unit drives a second intermediate node signal at a second intermediate node depending on the second comparing signal according to the first strobe signal. The latching unit determines a comparing result according to at least one of the first intermediate node signal and the second intermediate node signal. In addition, the latching unit latches the comparing result according to a second strobe signal.
摘要翻译：提供比较器，并且比较器包括比较输入单元和锁存单元。其中，所述比较输入单元具有接收第一比较信号的第一输入，并具有接收第二比较信号的第二输入。比较输入单元根据第一选通信号根据第一比较信号在第一中间节点处驱动第一中间节点信号，并且比较输入单元根据第二比较信号在第二中间节点驱动第二中间节点信号根据第一个选通信号。锁存单元根据第一中间节点信号和第二中间节点信号中的至少一个确定比较结果。此外，锁存单元根据第二选通信号来锁存比较结果。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式