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公开(公告)号：US08031101B2
公开(公告)日：2011-10-04
申请号：US12705416
申请日：2010-02-12
申请人： Ravi Narasimhan , Andrea Goldsmith
发明人： Ravi Narasimhan , Andrea Goldsmith
IPC分类号： H03M1/12
CPC分类号： H03M1/1042 , H03M1/12
摘要： A technique to mitigate in-band spurs introduced into a signal due to various board/SiP layout issues at a receiver is disclosed. The spurs can be approximated as sinusoids at different known frequencies with unknown amplitudes and phases. The technique is applicable to both single and multiple spur cancellation.
摘要翻译： 公开了一种用于减轻由于接收机处的各种板/ SiP布局问题引入到信号中的带内刺激的技术。 马刺可以近似为具有未知振幅和相位的不同已知频率的正弦波。 该技术适用于单次和多次支线取消。
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公开(公告)号：US20110060956A1
公开(公告)日：2011-03-10
申请号：US12754578
申请日：2010-04-05
申请人： Andrea Goldsmith , Ravi Narasimhan
发明人： Andrea Goldsmith , Ravi Narasimhan
CPC分类号： H04B15/00 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04B7/063
摘要： Interference cognitive devices are described. An interference cognitive device can be collocated with a transmitter of an interference cognitive transmitter (ICT), as receive chains or portions thereof at the ICT. An interference cognitive device can also be remote with respect to the transmitter, which operates in an interference cognitive network and receives data directly or indirectly from the interference cognitive device. The ICT uses the data to mitigate interference while continuing to operate in accordance with a performance metric.
摘要翻译： 描述干扰认知设备。 干扰认知设备可以与干扰认知发射机（ICT）的发射机并置，作为在ICT处的接收链或其部分。 相对于在干扰认知网络中操作并且从干扰认知设备直接或间接接收数据的发射机，干扰认知设备也可以是远程的。 ICT使用数据来减轻干扰，同时按照性能指标继续运行。
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公开(公告)号：US20100214145A1
公开(公告)日：2010-08-26
申请号：US12705416
申请日：2010-02-12
申请人： Ravi Narasimhan , Andrea Goldsmith
发明人： Ravi Narasimhan , Andrea Goldsmith
IPC分类号： H03M1/12
CPC分类号： H03M1/1042 , H03M1/12
摘要： A technique to mitigate in-band spurs introduced into a signal due to various board/SiP layout issues at a receiver is disclosed. The spurs can be approximated as sinusoids at different known frequencies with unknown amplitudes and phases. The technique is applicable to both single and multiple spur cancellation.
摘要翻译： 公开了一种用于减轻由于接收机处的各种板/ SiP布局问题引入到信号中的带内刺激的技术。 马刺可以近似为具有未知振幅和相位的不同已知频率的正弦波。 该技术适用于单次和多次支线取消。
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公开(公告)号：US08634434B2
公开(公告)日：2014-01-21
申请号：US12939023
申请日：2010-11-03
IPC分类号： H04L12/43
CPC分类号： H04W40/06
摘要： Disclosed are methods and apparatuses related to the routing of communications in a wireless mesh network so as to provide improved range, reliability and/or throughput. At least some aspects of the techniques and apparatuses can be implemented in an intermediary node (relay node) on a wireless mesh network. The relay node and other devices on the wireless network may implement a form of multiple-input multiple-output (MIMO) communication, such as multi-user MIMO (MU-MIMO). The devices on the network can communicate in accordance with IEEE standard 802.11.
摘要翻译： 公开了与无线网状网络中的通信路由相关的方法和装置，以便提供改进的范围，可靠性和/或吞吐量。 技术和装置的至少一些方面可以在无线网状网络上的中间节点（中继节点）中实现。 中继节点和无线网络上的其他设备可以实现诸如多用户MIMO（MU-MIMO）的多输入多输出（MIMO）通信的形式。 网络上的设备可以根据IEEE标准802.11进行通信。
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公开(公告)号：US20110110345A1
公开(公告)日：2011-05-12
申请号：US12939023
申请日：2010-11-03
IPC分类号： H04W40/00
CPC分类号： H04W40/06
摘要： Disclosed are methods and apparatuses related to the routing of communications in a wireless mesh network so as to provide improved range, reliability and/or throughput. At least some aspects of the techniques and apparatuses can be implemented in an intermediary node (relay node) on a wireless mesh network. The relay node and other devices on the wireless network may implement a form of multiple-input multiple-output (MIMO) communication, such as multi-user MIMO (MU-MIMO). The devices on the network can communicate in accordance with IEEE standard 802.11.
摘要翻译： 公开了与无线网状网络中的通信路由相关的方法和装置，以便提供改进的范围，可靠性和/或吞吐量。 技术和装置的至少一些方面可以在无线网状网络上的中间节点（中继节点）中实现。 中继节点和无线网络上的其他设备可以实现诸如多用户MIMO（MU-MIMO）的多输入多输出（MIMO）通信的形式。 网络上的设备可以根据IEEE标准802.11进行通信。
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公开(公告)号：US08305921B2
公开(公告)日：2012-11-06
申请号：US12630814
申请日：2009-12-03
申请人： Ravi Narasimhan , Andrea Goldsmith
发明人： Ravi Narasimhan , Andrea Goldsmith
CPC分类号： H04B15/00 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04B7/063
摘要： Several adaptive techniques are described to combat interference in multiple-input multiple-output (MIMO) systems. In addition to adaptive frequency selection, interference suppression techniques for a selected carrier frequency are presented. The interference suppression technique can be adaptively selected based on the availability and quality of channel state information (CSI) and interference statistics. Techniques to estimate interference statistics are also presented. Interference mitigation techniques are also presented for automatic gain control (AGC), intermittent interference, and interference caused to other networks.
摘要翻译： 描述了几种自适应技术来抵抗多输入多输出（MIMO）系统中的干扰。 除了自适应频率选择之外，还介绍了所选载波频率的干扰抑制技术。 可以根据信道状态信息（CSI）和干扰统计信息的可用性和质量自适应地选择干扰抑制技术。 还介绍了估算干扰统计的技术。 还提供了干扰减轻技术用于自动增益控制（AGC），间歇干扰和对其他网络的干扰。
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公开(公告)号：US20100080317A1
公开(公告)日：2010-04-01
申请号：US12572250
申请日：2009-10-01
申请人： Ravi Narasimhan , Andrea Goldsmith
发明人： Ravi Narasimhan , Andrea Goldsmith
IPC分类号： H04L1/02
CPC分类号： H04B7/0617 , H04B7/0434 , H04L5/0023 , H04L25/0204 , H04L2025/03414 , H04L2025/03426
摘要： Symbol mixing across multiple input multiple output (MIMO) parallel channels is disclosed. Each data symbol is transmitted over an effective channel with a weighted sum of the singular values associated with all spatial channels. By averaging the singular values, there is less of a penalty associated with the choice of modulation and coding on the data symbols, since all transmitted symbols experience roughly the same signal to noise ratio (SNR) in transmission.
摘要翻译： 公开了跨多输入多输出（MIMO）并行通道的符号混合。 每个数据符号通过与所有空间信道相关联的奇异值的加权和在有效信道上传输。 通过平均奇异值，由于所有发送的符号在传输中经历大致相同的信噪比（SNR），所以与数据符号上的调制和编码的选择相关联的惩罚较少。
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公开(公告)号：US08358588B2
公开(公告)日：2013-01-22
申请号：US12754578
申请日：2010-04-05
申请人： Andrea Goldsmith , Ravi Narasimhan
发明人： Andrea Goldsmith , Ravi Narasimhan
CPC分类号： H04B15/00 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04B7/063
摘要： Interference cognitive devices are described. An interference cognitive device can be collocated with a transmitter of an interference cognitive transmitter (ICT), as receive chains or portions thereof at the ICT. An interference cognitive device can also be remote with respect to the transmitter, which operates in an interference cognitive network and receives data directly or indirectly from the interference cognitive device. The ICT uses the data to mitigate interference while continuing to operate in accordance with a performance metric.
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公开(公告)号：US20100254325A1
公开(公告)日：2010-10-07
申请号：US12630814
申请日：2009-12-03
申请人： Ravi Narasimhan , Andrea Goldsmith
发明人： Ravi Narasimhan , Andrea Goldsmith
IPC分类号： H04W72/12
CPC分类号： H04B15/00 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04B7/063
摘要： Several adaptive techniques are described to combat interference in multiple-input multiple-output (MIMO) systems. In addition to adaptive frequency selection, interference suppression techniques for a selected carrier frequency are presented. The interference suppression technique can be adaptively selected based on the availability and quality of channel state information (CSI) and interference statistics. Techniques to estimate interference statistics are also presented. Interference mitigation techniques are also presented for automatic gain control (AGC), intermittent interference, and interference caused to other networks.
摘要翻译： 描述了几种自适应技术来抵抗多输入多输出（MIMO）系统中的干扰。 除了自适应频率选择之外，还介绍了所选载波频率的干扰抑制技术。 可以根据信道状态信息（CSI）和干扰统计信息的可用性和质量自适应地选择干扰抑制技术。 还介绍了估算干扰统计的技术。 还提供了干扰减轻技术用于自动增益控制（AGC），间歇干扰和对其他网络的干扰。
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公开(公告)号：US09820696B1
公开(公告)日：2017-11-21
申请号：US14517559
申请日：2014-10-17
申请人： Ravi Narasimhan
发明人： Ravi Narasimhan
CPC分类号： A61B5/6898 , A61B5/0077 , A61B5/02125 , A61B5/7214 , A61B5/7278 , A61B7/00 , A61B7/045 , A61B2576/00
摘要： A method and system for determining blood pressure are disclosed. The method comprises determining a plurality of heart sounds using a microphone of a handheld device and determining a pulse wave using a camera of the handheld device, wherein the plurality of heart sounds and the pulse wave are utilized to determine the blood pressure. The system includes a processor, a memory device coupled to the processor, and an application coupled to the memory device. The system further comprises a microphone coupled to the processor, wherein the microphone is utilized to determine a plurality of heart sounds and a camera coupled to the processor, wherein the camera is utilized to determine a pulse wave, further wherein the application, when executed by the processor, causes the processor to determine the blood pressure using the plurality of heart sounds and the pulse wave.
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