中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

63 records (took 0.045 seconds)

    LOW POWER DIGITAL-TO-TIME CONVERTER (DTC) LINEARIZATION
    4.
    发明申请
    LOW POWER DIGITAL-TO-TIME CONVERTER (DTC) LINEARIZATION 审中-公开

    公开(公告)号：WO2022260832A1

    公开(公告)日：2022-12-15

    申请号：PCT/US2022/029655

    申请日：2022-05-17

    Applicant: QUALCOMM INCORPORATED

    Inventor： LI, Alvin Siu-Chi ,  O'SULLIVAN, Tomas ,  YU, Jianjun ,  TANG, Yiwu

    IPC: H03L7/197 ,  H03L7/08 ,  H03L7/081 ,  H03K5/131

    Abstract: An aspect relates to an apparatus including an input buffer including an input configured to receive an input voltage; a ramp voltage generator including an input coupled to an output of the input buffer; an evaluation circuit including an input coupled to an output of the ramp voltage generator, wherein the evaluation circuit includes a first resistor coupled in series with first field effect transistor (FET) between a first voltage rail and a second voltage rail; and an output buffer including an input coupled to a drain of the first FET and an output configured to generate an output voltage.

    VARACTORLESS TUNABLE OSCILLATOR
    5.
    发明申请
    VARACTORLESS TUNABLE OSCILLATOR 审中-公开
    无级可调谐振荡器

    公开(公告)号：WO2012112587A1

    公开(公告)日：2012-08-23

    申请号：PCT/US2012/025098

    申请日：2012-02-14

    Applicant: QUALCOMM Incorporated ,  TANG, Yiwu ,  CHOI, Jaehyouk ,  PARK, Jong Min ,  NARATHONG, Chiewcharn

    Inventor： TANG, Yiwu ,  CHOI, Jaehyouk ,  PARK, Jong Min ,  NARATHONG, Chiewcharn

    IPC: H03B5/12

    CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1256 ,  H03B5/1296

    Abstract: A tunable oscillator circuit is disclosed. The tunable oscillator circuit includes an inductor/capacitor (LC) tank circuit comprising a primary inductor coupled in parallel with a first capacitor bank. The LC tank resonates to produce an oscillating voltage at a frequency. The tunable oscillator circuit also includes a 90 degree phase shift buffer coupled to the LC tank and a transconductor. The transconductor is coupled to the 90 degree phase shift buffer and a secondary inductor. The tunable oscillator circuit also includes a secondary inductor that is inductively coupled to the primary inductor and receives a gain-scaled oscillating current from the transconductor. By changing the transconductance, the gain-scaled oscillating current in the secondary inductor will change, thus the effective primary inductance and the oscillation frequency can be tuned.

    Abstract translation: 公开了一种可调谐振荡器电路。 可调振荡器电路包括电感器/电容器（LC）槽电路，其包括与第一电容器组并联耦合的初级电感器。 LC箱谐振以产生频率的振荡电压。 可调振荡器电路还包括耦合到LC箱和跨导体的90度相移缓冲器。 跨导体耦合到90度相移缓冲器和次级电感器。 可调谐振荡器电路还包括次级电感器，其电感耦合到初级电感器并且从跨导体接收增益调节的振荡电流。 通过改变跨导，次级电感器中的增益调节振荡电流将发生变化，从而可以调节有效的初级电感和振荡频率。

    WIDEBAND MULTI-MODE VCO
    6.
    发明申请
    WIDEBAND MULTI-MODE VCO 审中-公开
    宽带多模VCO

    公开(公告)号：WO2012092385A1

    公开(公告)日：2012-07-05

    申请号：PCT/US2011/067620

    申请日：2011-12-28

    Applicant: QUALCOMM INCORPORATED ,  LI, Guansheng ,  LIU, Li ,  TANG, Yiwu

    Inventor： LI, Guansheng ,  LIU, Li ,  TANG, Yiwu

    IPC: H03B5/12

    CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1225 ,  H03B5/1256 ,  H03B5/1262 ,  H03B5/1281 ,  H03B5/1296

    Abstract: A VCO includes a transformer-based resonator that has a first LC tank and a second LC tank. The resonator has an even resonant mode and an odd resonant mode. The VCO further includes an active transconductance network that is coupled to a two-terminal port of the first tank and is also coupled to a two-terminal port of the second tank. A first terminal of the port of the first tank is capacitively coupled to a first terminal of the port of the second tank. A second terminal of the port of the first tank is capacitively coupled to a second terminal of the port of the second tank. The active transconductance network causes the resonator to resonate in a selectable one of the even and odd resonant modes depending on a digital control signal. The VCO is fine tuned by changing the capacitances of capacitors of the tanks.

    Abstract translation: VCO包括具有第一LC箱和第二LC箱的基于变压器的谐振器。 谐振器具有均匀谐振模式和奇数谐振模式。 VCO还包括有源跨导网络，其耦合到第一箱的两端口并且还耦合到第二箱的两端口。 第一罐的端口的第一端子电容耦合到第二罐的端口的第一端子。 第一罐的端口的第二端子电容耦合到第二罐的端口的第二端子。 有源跨导网络使得谐振器根据数字控制信号以奇数谐振模式和奇数谐振模式中的可选择谐振模式谐振。 通过改变电容器的电容，可以对VCO进行微调。

    HIGH Q TRANSFORMER DISPOSED AT LEAST PARTLY IN A NON-SEMICONDUCTOR SUBSTRATE
    7.
    发明申请
    HIGH Q TRANSFORMER DISPOSED AT LEAST PARTLY IN A NON-SEMICONDUCTOR SUBSTRATE 审中-公开
    高Q变压器至少在非半导体基板中处理

    公开(公告)号：WO2010014985A1

    公开(公告)日：2010-02-04

    申请号：PCT/US2009/052580

    申请日：2009-08-03

    Applicant: QUALCOMM INCORPORATED ,  TANG, Yiwu ,  JIN, Zhang

    Inventor： TANG, Yiwu ,  JIN, Zhang

    IPC: H01L23/48 ,  H01L23/495 ,  H01L23/50 ,  H01L23/522

    CPC classification number: H01L23/5227 ,  H01L23/48 ,  H01L23/49534 ,  H01L23/50 ,  H01L2224/16 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/01019 ,  H01L2924/01079 ,  H01L2924/15311 ,  H01L2924/3011 ,  H01L2224/0401

    Abstract: An assembly involves an integrated circuit die that is bonded, e.g., flip-chip bonded, to a non-semiconductor substrate by a plurality of low-resistance microbumps. In one novel aspect, at least a part of a novel high-frequency transformer is disposed in the non-semiconductor substrate where the non-semiconductor substrate is the substrate of a ball grid array (BGA) integrated circuit package. At least one of the low-resistance microbumps connects the part of the transformer in the substrate to a circuit in the integrated circuit die. At two gigahertz, the novel transformer has a coupling coefficient k of at least at least 0.4 and also has a transformer quality factor Q of at least ten. The novel transformer structure sees use in coupling differential outputs of a mixer to a single-ended input of a driver amplifier in a transmit chain of an RF transceiver within a cellular telephone.

    Abstract translation: 一种组件涉及通过多个低电阻微凸块结合（例如倒装芯片）结合到非半导体衬底的集成电路管芯。 在一个新颖的方面，新型高频变压器的至少一部分设置在非半导体衬底中，其中非半导体衬底是球栅阵列（BGA）集成电路封装的衬底。 至少一个低电阻微片将衬底中的变压器的一部分连接到集成电路管芯中的电路。 在两千兆赫兹，新颖的变压器具有至少至少为0.4的耦合系数k，并且还具有至少十的变压器质量因子Q。 该新颖的变压器结构用于将混频器的差分输出耦合到蜂窝电话中RF收发器的发射链中的驱动放大器的单端输入。

    PROGRAMMABLE VARACTOR FOR VCO GAIN COMPENSATION AND PHASE NOISE REDUCTION
    8.
    发明申请
    PROGRAMMABLE VARACTOR FOR VCO GAIN COMPENSATION AND PHASE NOISE REDUCTION 审中-公开
    用于VCO增益补偿和相位噪声减小的可编程变量

    公开(公告)号：WO2008074000A1

    公开(公告)日：2008-06-19

    申请号：PCT/US2007/087320

    申请日：2007-12-12

    Applicant: QUALCOMM Incorporated ,  TANG, Yiwu

    Inventor： TANG, Yiwu

    IPC: H03L7/00

    CPC classification number: H03L7/099 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/005

    Abstract: A programmable varactor apparatus may include multiple binary weighted varactors controlled by multiple digital varactor bits. A programmable varactor apparatus may include a plurality of binary weighted varactors, and a control to selectively disable one or more of the plurality of binary weighted varactors to decrease an effective capacitance of the programmable varactor apparatus. A method for changing an effective capacitance of a programmable varactor apparatus may include providing a plurality of binary weighted varactors, and disabling one or more of the plurality of binary weighted varactors to decrease the effective capacitance of the programmable varactor apparatus.

    Abstract translation: 可编程变容二极管装置可以包括由多个数字变容二极管控制的多个二进制加权变容二极管。 可编程可变电抗器装置可以包括多个二进制加权变容二极管，以及用于选择性地禁用多个二进制加权变容二极管中的一个或多个以减小可编程变容二极管装置的有效电容的控制。 用于改变可编程变容二极管装置的有效电容的方法可以包括提供多个二进制加权变容二极管，以及禁用多个二进制加权变容二极管中的一个或多个，以减小可编程变容二极管装置的有效电容。

    FREQUENCY DIVIDER FUNCTIONALITY DETECTION AND ADJUSTMENT
    9.
    发明申请
    FREQUENCY DIVIDER FUNCTIONALITY DETECTION AND ADJUSTMENT 审中-公开

    公开(公告)号：WO2023038752A1

    公开(公告)日：2023-03-16

    申请号：PCT/US2022/039909

    申请日：2022-08-10

    Applicant: QUALCOMM INCORPORATED

    Inventor： HAO, Shilei ,  TANG, Yiwu ,  ZHU, Yunliang

    IPC: H03L7/183 ,  H03K5/00

    Abstract: A frequency divider functionality detection and adjustment circuit includes an auxiliary voltage controlled oscillator (VCO) coupled to a first multiplexer (MUX), a programmable divider coupled to the first MUX, a second MUX coupled to the programmable divider, a counter coupled to the second MUX, and a controller coupled to the counter, the controller configured to adjust a supply voltage provided to the programmable divider based on a measured divide ratio, NMEAS.

    PRESCALER FOR A FREQUENCY DIVIDER
    10.
    发明申请
    PRESCALER FOR A FREQUENCY DIVIDER 审中-公开

    公开(公告)号：WO2023014459A2

    公开(公告)日：2023-02-09

    申请号：PCT/US2022/036192

    申请日：2022-07-06

    Applicant: QUALCOMM INCORPORATED

    Inventor： HAO, Shilei ,  ZHU, Yunliang ,  TANG, Yiwu ,  PARK, Dongmin

    IPC: H03K21/10 ,  H03K23/40 ,  H03K23/44 ,  H03L7/193 ,  H03K3/356121

    Abstract: A hybrid true single-phase clock (H-TSPC) circuit includes a first logic circuit comprising non-ratio (NR) logic, a first mode switching device coupled to an output of the first logic circuit, a second logic circuit comprising ratio (R) logic, the second logic circuit configured to receive an output of the first logic circuit, a second mode switching device coupled to an output of the second logic circuit, a third logic circuit comprising non-ratio (NR) logic, the third logic circuit configured to receive an output of the second logic circuit, and a third mode switching device coupled to an output of the third logic circuit, wherein the first logic circuit, second logic circuit, and third logic circuit are configured in a ring.

Patent Agency Ranking