公开(公告)号：US09800277B2

公开(公告)日：2017-10-24

申请号：US14913691

申请日：2013-10-11

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Moh Lim Sim ,  Chow Loong Cheah ,  Shu Chen ,  Raviteja Chinta ,  Yadunandana N Rao ,  V. C. Prakash V K Chacko

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H04B2001/1054

Abstract: A radio frequency (RF) receiver and method of controlling an RF receiver are provided. The method includes receiving an RF signal and down-converting the RF signal to a substantially baseband signal. A direct current (DC) transition is detected in a portion of the substantially baseband signal. The substantially baseband signal is then filtered using a first filter configuration at the portion of the substantially baseband signal including the DC transition and a second filter configuration at a portion of the substantially baseband signal not including the DC transition.

公开(公告)号：US09384386B2

公开(公告)日：2016-07-05

申请号：US14472981

申请日：2014-08-29

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Kuan Heng Lee ,  Kevin J O'Connell ,  Moh Lim Sim ,  Yan Zhang

IPC: G06K9/00

CPC classification number: G06K9/00295 ,  G06K9/00261 ,  G06K9/036

Abstract: Disclosed herein are methods and systems for increasing facial-recognition working range through adaptive super-resolution. One embodiment takes the form of a process that includes calculating one or more video metrics with respect to an input set of video frames. The process also includes obtaining a metric-specific weighting factor for each of the calculated video metrics. The process also includes calculating a weighted sum based on the obtained metric-specific weighting factors and the corresponding calculated video metrics. The process also includes selecting, based at least in part on the calculated weighted sum, a super-resolution technique from among a plurality of super-resolution techniques. The process also includes outputting an indication of the selected super-resolution technique.

Abstract translation: 本文公开了通过自适应超分辨率增加面部识别工作范围的方法和系统。 一个实施例采用包括计算关于视频帧的输入集合的一个或多个视频度量的过程的形式。 该过程还包括获得针对每个计算的视频度量的度量特定加权因子。 该过程还包括基于获得的度量特定加权因子和相应计算的视频度量来计算加权和。 该过程还包括至少部分地基于所计算的加权和来从多个超分辨率技术中选择超分辨率技术。 该过程还包括输出所选择的超分辨率技术的指示。

公开(公告)号：US09042500B1

公开(公告)日：2015-05-26

申请号：US14109528

申请日：2013-12-17

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Yew Leong Wong ,  Chow Loong Cheah ,  Li Choo Chen ,  Yadunandana N Rao ,  Moh Lim Sim ,  Ondy Dharma Indra Sukma

IPC: H03D1/04 ,  H04B1/12

CPC classification number: H04B1/30 ,  H04B1/1036 ,  H04B2001/1045

Abstract: A very-low intermediate frequency (VLIF) receiver and a method of controlling a VLIF receiver. The method comprises receiving a first signal, the first signal including one or both of an on-channel signal portion and an adjacent channel interferer (ACI) portion; determining that the first signal includes a portion having a strength that is above a threshold; in response to determining that the first signal includes a portion having a strength that is above the threshold, estimating one or more IQ imbalance parameters for at least a portion of the first signal; and compensating for an IQ imbalance in at least the portion of the first signal using the one or more IQ imbalance parameters.

Abstract translation: 一种非常低的中频（VLIF）接收机和一种控制VLIF接收机的方法。 所述方法包括：接收第一信号，所述第一信号包括通道内信号部分和相邻信道干扰源（ACI）部分中的一个或两者; 确定所述第一信号包括具有高于阈值的强度的部分; 响应于确定所述第一信号包括具有高于所述阈值的强度的部分，估计所述第一信号的至少一部分的一个或多个IQ不平衡参数; 以及使用所述一个或多个IQ不平衡参数来补偿所述第一信号的至少所述部分中的IQ不平衡。