公开(公告)号：US20210257726A1

公开(公告)日：2021-08-19

申请号：US17164494

申请日：2021-02-01

Applicant: QUALCOMM Incorporated

Inventor： Sean Joel LYN ,  Cheng-Han WANG ,  Hye Jin SONG ,  Hai HUANG ,  Sang-Oh LEE

IPC: H01Q1/50 ,  H01P5/10

Abstract: An area-efficient balun and a method for signal processing using such a balun. One example balun generally includes a winding and a clamping circuit. The winding is formed by a coiled trace including a first portion having a first trace width and a second portion having a second trace width, the second trace width being narrower than the first trace width. The clamping circuit has a first terminal and a second terminal, the first terminal of the clamping circuit being coupled to the first portion of the coiled trace.

公开(公告)号：US20160087783A1

公开(公告)日：2016-03-24

申请号：US14495183

申请日：2014-09-24

Applicant: QUALCOMM Incorporated

Inventor： David Ta-Hsiang LIN ,  Yongwang DING ,  Young Gon KIM ,  Thinh Cat NGUYEN ,  Jeongsik YANG ,  Sang-Oh LEE

IPC: H04L7/00 ,  H03K5/22 ,  H03M1/34 ,  H04B1/40

CPC classification number: H03M1/34 ,  H03K5/22 ,  H03K2005/00286 ,  H04B1/40

Abstract: Certain aspects of the present invention provide methods and apparatus for detecting phase shift between signals, such as local oscillating signals in adjacent transceiver paths. One example circuit for phase detection generally includes a mixer configured to mix a first input signal having a first frequency with a second input signal having a second frequency to produce an output signal having frequency components at the sum of and the difference between the first and second frequencies; a filter connected with the mixer and configured to remove one of the frequency components at the sum of the first and second frequencies, thereby leaving a DC component; and an analog-to-digital converter (ADC) (e.g., a comparator) connected with the filter and configured to determine whether the first input signal is in-phase or out-of-phase with the second input signal based on a comparison between the DC component and a reference signal.

Abstract translation: 本发明的某些方面提供用于检测信号之间的相移的方法和装置，例如相邻收发器路径中的本地振荡信号。 用于相位检测的一个示例电路通常包括混频器，其被配置为将具有第一频率的第一输入信号与具有第二频率的第二输入信号混合，以产生具有频率分量在第一和第二频率之和之间的频率分量的输出信号 频率; 滤波器，与所述混频器连接并且被配置为以所述第一和第二频率的和去除所述频率分量中的一个，从而留下DC分量; 以及与所述滤波器连接并且被配置为基于所述第一输入信号与所述第二输入信号之间的比较来确定所述第一输入信号是与所述第二输入信号是同相还是异相的模拟 - 数字转换器（例如，比较器） DC分量和参考信号。

公开(公告)号：US20150214891A1

公开(公告)日：2015-07-30

申请号：US14168701

申请日：2014-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jianlei SHI ,  Yongwang DING ,  Jeongsik YANG ,  Mazhareddin TAGHIVAND ,  Sang-Oh LEE ,  Young Gon KIM

IPC: H03B5/12 ,  H01F27/30

CPC classification number: H03B5/1206 ,  H01F17/0013 ,  H01F27/30 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1296 ,  H03H7/09

Abstract: A transformer is described. The transformer includes a primary coil and a first secondary coil. A first coupling occurs between the first secondary coil and the primary coil. The transformer also includes a second secondary coil. A second coupling occurs between the second secondary coil and the primary coil. The first secondary coil is separated from the second secondary coil to prevent coupling between the first secondary coil and the second secondary coil. A first width of the first secondary coil is configured independently of a second width of the second secondary coil.

Abstract translation: 描述了变压器。 变压器包括初级线圈和第一次级线圈。 在第一次级线圈和初级线圈之间发生第一耦合。 变压器还包括第二次级线圈。 在第二次级线圈和初级线圈之间发生第二耦合。 第一次级线圈与第二次级线圈分离以防止第一次级线圈和第二次级线圈之间的耦合。 第一次级线圈的第一宽度被配置为独立于第二次级线圈的第二宽度。