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1. 发明授权

US08233568B2 Adaptive receiver for high-order modulated signals over fading channels 有权
标题翻译：用于衰落信道上的高阶调制信号的自适应接收机
公开(公告)号：US08233568B2
公开(公告)日：2012-07-31
申请号：US12205448
申请日：2008-09-05
申请人： Rajendra Kumar , Ramses Diaz de Leon
发明人： Rajendra Kumar , Ramses Diaz de Leon
IPC分类号： H04L27/00
CPC分类号： H04L27/38 , H04L27/0014 , H04L2027/0026 , H04L2027/0055 , H04L2027/0067 , H04L2027/0069 , H04L2027/0087
摘要： An adaptive receiver to provide reliable estimates of the symbols for the high-order MQAM and MPSK modulated signals received in the presence of amplitude fading and phase dynamics induced due to time-varying atmospheric or terrestrial multipath fading encountered in wireless communication channels. The adaptive receiver encompasses an adaptive tracking loop comprised of adaptive channel fade envelope estimator derived from the high-order modulated signal, a novel phase detector to separately estimate the phase due to the fading channel and the reference oscillator from that due to the data modulation present in the received signal without the need of any pilot symbol or pilot carrier, and a Kalman filter, a fixed-lag smoother and a smoothed symbol detector.
摘要翻译：一种自适应接收机，用于在存在由无线通信信道中遇到的随时间变化的大气或地面多径衰落引起的幅度衰落和相位动态的情况下提供用于高阶MQAM和MPSK调制信号的符号的可靠估计。自适应接收机包括自适应跟踪环路，该自适应跟踪环路包括从高阶调制信号导出的自适应信道衰落包络估计器，一种新颖的相位检测器，用于分别估计由于衰落信道和参考振荡器引起的相位，在接收信号中，不需要任何导频符号或导频载波，卡尔曼滤波器，固定延迟平滑器和平滑符号检测器。

2. 发明授权

US08831082B2 Systems and methods for blind mode adaptive equalization with multiple algorithms 有权
标题翻译：具有多种算法的盲模式自适应均衡的系统和方法
公开(公告)号：US08831082B2
公开(公告)日：2014-09-09
申请号：US13762048
申请日：2013-02-07
申请人： Rajendra Kumar
发明人： Rajendra Kumar
IPC分类号： H03H7/30 , H04L27/01
CPC分类号： H04L25/03 , H04L25/0307 , H04L25/03891 , H04L2025/03426 , H04L2025/03726
摘要： Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive diversity wireless channels. For example, various embodiments may utilize an architecture comprised of a bank of estimation units, a normalizing gain estimator, a DSP unit and a feedback shift register providing the equalizer feedback state vector. The estimation unit may be further comprised of a multiplicity of adaptive algorithms providing various filtered estimates of the data symbol to the DSP unit or providing the joint estimate of the transmitted data symbol.
摘要翻译：本文描述的各种实施例涉及用于盲模式自适应均衡器系统的方法和系统，以从随时变色散分集无线信道发射的信号中恢复复值数据符号。例如，各种实施例可以利用由一组估计单元，归一化增益估计器，DSP单元和提供均衡器反馈状态向量的反馈移位寄存器组成的架构。估计单元还可以包括多个自适应算法，该数据符号向DSP单元提供数据符号的各种滤波估计值，或者提供发送数据符号的联合估计。

3. 发明申请

US20100061487A1 ADAPTIVE RECEIVER FOR HIGH-ORDER MODULATED SIGNALS OVER FADING CHANNELS 有权
标题翻译：用于高阶调制信号的自适应接收器在渐近通道上
公开(公告)号：US20100061487A1
公开(公告)日：2010-03-11
申请号：US12205448
申请日：2008-09-05
申请人： Rajendra Kumar , Ramses Diaz de Leon
发明人： Rajendra Kumar , Ramses Diaz de Leon
IPC分类号： H03D1/04
CPC分类号： H04L27/38 , H04L27/0014 , H04L2027/0026 , H04L2027/0055 , H04L2027/0067 , H04L2027/0069 , H04L2027/0087
摘要： An adaptive receiver to provide reliable estimates of the symbols for the high-order MQAM and MPSK modulated signals received in the presence of amplitude fading and phase dynamics induced due to time-varying atmospheric or terrestrial multipath fading encountered in wireless communication channels. The adaptive receiver encompasses an adaptive tracking loop comprised of adaptive channel fade envelope estimator derived from the high-order modulated signal, a novel phase detector to separately estimate the phase due to the fading channel and the reference oscillator from that due to the data modulation present in the received signal without the need of any pilot symbol or pilot carrier, and a Kalman filter, a fixed-lag smoother and a smoothed symbol detector.
摘要翻译：一种自适应接收机，用于在存在由无线通信信道中遇到的随时间变化的大气或地面多径衰落引起的幅度衰落和相位动态的情况下提供用于高阶MQAM和MPSK调制信号的符号的可靠估计。自适应接收机包括自适应跟踪环路，该自适应跟踪环路包括从高阶调制信号导出的自适应信道衰落包络估计器，一种新颖的相位检测器，用于分别估计由于衰落信道和参考振荡器引起的相位，在接收信号中，不需要任何导频符号或导频载波，卡尔曼滤波器，固定延迟平滑器和平滑符号检测器。

4. 发明申请

US20210179159A1 LSM Luggage Trolleys: Intelligent Shopping Mall Luggage Trolleys 有权
公开(公告)号：US20210179159A1
公开(公告)日：2021-06-17
申请号：US17164845
申请日：2021-02-02
申请人： Surbhi Bhatia , Rajendra Kumar Bharti , Mohammad Tabrez Quasim , Mohammad Ayoub Khan , Meghna Chhabra , Swati Chandna , Shadab Alam , Vipin Jain , Pawan Kumar Bharti , Beg Raj
发明人： Surbhi Bhatia , Rajendra Kumar Bharti , Mohammad Tabrez Quasim , Mohammad Ayoub Khan , Meghna Chhabra , Swati Chandna , Shadab Alam , Vipin Jain , Pawan Kumar Bharti , Beg Raj
IPC分类号： B62B5/00 , G06K9/62 , G06K9/00 , G06F3/14 , H04R1/10 , G06F3/16 , G08B5/36 , H04W4/80 , H04W76/11 , G06Q20/20 , G06K7/10 , G06Q20/36 , G16H50/80 , G06N20/00 , G05D1/02 , G01G19/12 , G07D11/00 , B62B5/06 , B62B3/14
摘要： Nowadays shopping in supermarkets, malls, marts and other commercial places becomes a very important part of human life. Apart from just shopping, these places offer so many entertainment platforms for every age group of people under one roof. Therefore, to attract the customers, the shop owners are always trying to introduce unique flavour in their shopping platforms, such as: Digital Payment methods, Automatic controlling systems, location indicator of the particular store, Smart Trolley and etc. Shopping Trolley is always hidden but a very crucial part of your shopping. Here, we are putting this hidden component into the central attraction for the shopping. In our proposed invention idea (Smart Trolley), we are planning to put so many customer friendly features into the trolley, which takes the customer's shopping experience into another level. In our proposed Smart Trolley system, we are planning to incorporate smart lock, smart pooling, product scanners, location indicator, weighing machine, e-payment system and product reminder/assistant. In the Covid-19 pandemic, technology has played a very important role in the smooth run of human life and it has also convinced the young as well as old people to make their life align with the recent advancements. With this emphasis, our invention, “Smart Trolley” will give the smart, safe and secure shopping experience to the customers as well as store owners too. Business retail's owners can also adapt the proposed system in their business platforms because the implementing cost will also be adjusted in the long run as the proposed system will help to reduce the supporting staff size.

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