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：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。

公开(公告)号：US09336675B2

公开(公告)日：2016-05-10

申请号：US14262889

申请日：2014-04-28

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Trent J Miller ,  Alejandro G Blanco ,  Neiyer S Correal ,  Fabio M Costa ,  Kenneth W Douros ,  Bradley M Hiben ,  Spyros Kyperountas ,  Lin Lin ,  Yadunandana N Rao

IPC: G08B1/08 ,  G08B27/00 ,  G08B25/01 ,  H04L12/24 ,  G08B25/00 ,  H04W4/22 ,  H04L29/08 ,  H04L29/06 ,  H04M3/51 ,  H04M11/04 ,  H04W76/00

CPC classification number: G08B27/001 ,  G08B21/0453 ,  G08B21/22 ,  G08B25/00 ,  G08B25/006 ,  G08B25/016 ,  H04L41/06 ,  H04L41/0609 ,  H04L41/065 ,  H04L41/22 ,  H04L65/40 ,  H04L67/12 ,  H04L67/125 ,  H04L67/22 ,  H04L67/306 ,  H04L67/36 ,  H04M3/5116 ,  H04M11/04 ,  H04M11/045 ,  H04M2242/04 ,  H04W4/90 ,  H04W76/50

Abstract: Disclosed herein are methods and systems for presenting prioritized incident content. One embodiment takes the form of a method that includes receiving one or more status alerts from one or more public-safety devices associated with one or more public-safety responders. The method also includes correlating one or more of the received status alerts with one or more media sessions involving one or more of the public-safety responders. The method also includes prioritizing one or more of the media sessions based on prioritization criteria that includes the one or more status alerts correlated with those media sessions. The method also includes presenting one or more of the prioritized media sessions in a chronological view on respective user interfaces of one or more public-safety communication devices.

Abstract translation: 这里公开了用于呈现优先事件内容的方法和系统。 一个实施例采取的方法的形式包括从与一个或多个公共安全应答器相关联的一个或多个公共安全设备接收一个或多个状态警报。 该方法还包括将一个或多个接收的状态警报与涉及一个或多个公共安全应答器的一个或多个媒体会话相关联。 该方法还包括基于包括与这些媒体会话相关联的一个或多个状态警报的优先级标准来优先化一个或多个媒体会话。 该方法还包括以时间顺序在一个或多个公共安全通信设备的用户界面上呈现一个或多个优先化媒体会话。

公开(公告)号：US09042856B2

公开(公告)日：2015-05-26

申请号：US13938623

申请日：2013-07-10

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Kevin G Doberstein ,  Yadunandana N Rao ,  Charles R Ruelke

IPC: H04L1/00

CPC classification number: H04L1/0045 ,  H04L25/067

Abstract: A method and apparatus for using erasure to improve signal decoding when data is impacted by an interference event. Embodiments may include receiving in an RF receiver a desired on-channel signal that includes an information signal modulated on to the desired on-channel signal; generating a sampled received signal with an analog-to-digital (A/D) converter; detecting an interference event using an interference detector as well as generating a mask based on the interference event; processing the sampled received signal using the mask to generate decoding data for use by a soft decoder; and, providing the decoding data to the soft decoder.

Abstract translation: 一种当数据受到干扰事件的影响时，使用擦除来改善信号解码的方法和装置。 实施例可以包括在RF接收机中接收包含被调制到期望的开通信道信号的信息信号的期望的通道信号; 利用模数（A / D）转换器生成采样的接收信号; 使用干扰检测器检测干扰事件以及基于所述干扰事件生成掩码; 使用掩码处理采样的接收信号以产生解码数据供软解码器使用; 并向软解码器提供解码数据。