公开(公告)号：US20240313818A1

公开(公告)日：2024-09-19

申请号：US18185078

申请日：2023-03-16

Applicant: QUALCOMM Incorporated

Inventor： Liang ZHAO ,  Hong Sun KIM ,  Angelica WONG ,  Jordan COOKMAN ,  Jean-Pierre RAFFEGEAU

IPC: H04B1/40 ,  H03M1/08 ,  H04W64/00

CPC classification number: H04B1/40 ,  H03M1/0836 ,  H04W64/003

Abstract: A positioning signal processing method includes: receiving, wirelessly at an apparatus, a first positioning signal in a first frequency range; receiving, wirelessly at the apparatus, a second positioning signal in a second frequency range; converting the first positioning signal by a first analog-to-digital converter (ADC) of the apparatus to produce a first digital signal at a first sampling rate that is based on a clock signal; and converting the second positioning signal by a second ADC of the apparatus to produce a second digital signal at a second sampling rate that is based on the clock signal and that is different from, and related to, the first sampling rate.

公开(公告)号：US20150271005A1

公开(公告)日：2015-09-24

申请号：US14220425

申请日：2014-03-20

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Han WANG ,  I-Liang LIN ,  Liang ZHAO ,  Hong Sun KIM ,  Yi ZENG

IPC: H04L27/34 ,  H04L27/36

CPC classification number: H04L27/3405 ,  H03C2200/0041 ,  H03D3/008 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.

Abstract translation: 描述用于执行残余边带校准的电路。 该电路通常包括相位不平衡检测电路。 相位不平衡检测电路可以包括限幅器。 相位不平衡检测电路可以与增益不平衡无关。 电路还可以包括相位不平衡校正电路。 相位不平衡检测电路可以控制同相路径和正交路径之间的耦合。