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1.发明授权System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal 失效用于校正直接转换单边带接收机中的正交增益和相位误差的系统，与调制信号的字符无关
公开(公告)号：US5604929A
公开(公告)日：1997-02-18
申请号：US426315
申请日：1995-04-21
CPC分类号： H03D1/2245 , H04B1/302
摘要： A system connecting and controlling gain and phase errors in a direct conversion receiver having a pair of signal channels carrying I and Q baseband signal components in a quadrature relationship. The system operates by treating all phase and gain errors as resident in the Q channel and thus describes an iterative process generating a plurality of intermediary signals that in turn incorporate a trigonometric product of the IF signal and the I and Q signal component to produce a pair of correction factors that ideally maintains a matched quadrature relationship between the two signal channels.
摘要翻译： 一种直接转换接收机中连接和控制增益和相位误差的系统，该直接转换接收机具有正交关系中承载I和Q基带信号分量的信号通道对。 该系统通过将所有相位和增益误差处理为驻留在Q通道中来进行操作，并且因此描述了产生多个中间信号的迭代过程，该迭代过程又包含IF信号和I和Q信号分量的三角乘积以产生一对 的校正因子，理想地维持两个信号通道之间的匹配正交关系。
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2.发明申请Multi-Layer Miniature Antenna For Implantable Medical Devices and Method for Forming the Same 审中-公开用于可植入医疗器械的多层微型天线及其形成方法公开(公告)号：US20100109966A1
公开(公告)日：2010-05-06
申请号：US12347597
申请日：2008-12-31
申请人： Duane N. Mateychuk , Joyce K. Yamamoto , Gerard J. Hill , Charles S. Farlow , Robert S. Wentink , Michael William Barror , Charles R. Gordon , Joachim Hossick-Schott , Yanzhu Zhao
发明人： Duane N. Mateychuk , Joyce K. Yamamoto , Gerard J. Hill , Charles S. Farlow , Robert S. Wentink , Michael William Barror , Charles R. Gordon , Joachim Hossick-Schott , Yanzhu Zhao
CPC分类号： A61N1/37229 , A61N1/3752 , H01Q1/38 , H01Q3/24 , H01Q9/42
摘要： An antenna for an implantable medical device (IMD) is provided including a monolithic structure derived from a plurality of discrete dielectric layers having an antenna embedded within the monolithic structure. Superstrate dielectric layers formed above the antenna may provide improved matching gradient with the surrounding environment to mitigate energy reflection effects. A outermost biocompatible layer is positioned over the superstrates as an interface with the surrounding environment. A shielding layer is positioned under the antenna to provide electromagnetic shielding for the IMD circuitry. Substrate dielectric layers formed below the antenna may possess higher dielectric values to allow the distance between the antenna and ground shielding layer to be minimized. An electromagnetic bandgap layer may be positioned between the antenna and the shielding layer. The dielectric layers may comprise layers of ceramic material that can be co-fired together with the antenna to form a hermetically sealed monolithic antenna structure.
摘要翻译： 提供了一种用于可植入医疗装置（IMD）的天线，其包括从具有嵌入整体结构内的天线的多个离散电介质层导出的单片结构。 形成在天线上方的上层电介质层可以提供与周围环境的改进的匹配梯度以减轻能量反射效应。 最外面的生物相容性层被定位在上层之上，作为与周围环境的界面。 屏蔽层位于天线下方，为IMD电路提供电磁屏蔽。 形成在天线下方的衬底电介质层可具有更高的介电值，以使天线和接地屏蔽层之间的距离最小化。 电磁带隙层可以位于天线和屏蔽层之间。 电介质层可以包括陶瓷材料层，其可与天线一起共烧以形成气密密封的单片天线结构。
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3.发明授权公开(公告)号：US08102789B2
公开(公告)日：2012-01-24
申请号：US11321184
申请日：2005-12-29
CPC分类号： A61N1/37288
摘要： Constituents of a network of medical devices communicate according to a synchronous communication protocol. A constituent of the network is established as a conductor. Time slots are assigned to each constituent of the network other than the conductor. Information is communicated between the constituents of the network in the assigned time slots.
摘要翻译： 医疗器械网络的成分根据同步通信协议进行通信。 网络的组成部分建立为指挥。 时隙被分配给除了导线以外的网络的每个组成部分。 信息在分配的时隙中在网络的组成部分之间传送。
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公开(公告)号：US07319719B1
公开(公告)日：2008-01-15
申请号：US09598870
申请日：2000-06-21
申请人： Charles S. Farlow
发明人： Charles S. Farlow
CPC分类号： H04L25/03019 , H04L1/0045 , H04L1/0065 , H04L25/03057 , H04L2025/03547
摘要： An equalization circuit is provided. The equalization circuit includes an input adapted to receive signals from a communications channel. The equalization circuit further includes a plurality of equalizer circuits coupled to the input and operable to generate a plurality of intermediate signals. A selector circuit is also included. The selector circuit is responsive to the plurality of equalizer circuits and selects one of the intermediate signals. The equalization circuit also includes an output coupled to the selector circuit that receives the selected intermediate signal.
摘要翻译： 提供均衡电路。 均衡电路包括适于从通信信道接收信号的输入。 均衡电路还包括耦合到输入并可操作以产生多个中间信号的多个均衡器电路。 还包括选择器电路。 选择器电路响应多个均衡器电路并选择一个中间信号。 均衡电路还包括耦合到选择器电路的输出，其接收所选择的中间信号。
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5.发明授权公开(公告)号：US07072693B2
公开(公告)日：2006-07-04
申请号：US10422411
申请日：2003-04-23
申请人： Charles S. Farlow , Kris Kelkar
发明人： Charles S. Farlow , Kris Kelkar
IPC分类号： H04M1/00
CPC分类号： H04B7/0874 , H04B7/0691
摘要： Wireless communications structures and methods are provided that utilize frequency domain spatial processing. Structure is included that receives and transmits signals from an array of Mβ antennas wherein the antennas are connected to M switches in groups of β. Each switch is connected to a single spatial processing channel and β antennas and each spatial processing channel is assigned complex multiplicative factor(s), or weight(s), that enhance overall system performance in the presence of interference and propagation-related impairments such as multipath fading.
摘要翻译： 提供利用频域空间处理的无线通信结构和方法。 包括从Mbeta天线阵列接收和发送信号的结构，其中天线以β组连接到M个开关。 每个开关连接到单个空间处理通道和β天线，并且每个空间处理通道被分配复杂乘法因子或权重，其在存在干扰和传播相关损伤的情况下增强整体系统性能，例如 多径衰落
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公开(公告)号：US08050771B2
公开(公告)日：2011-11-01
申请号：US12344980
申请日：2008-12-29
IPC分类号： A61N1/08
CPC分类号： H01Q1/273 , A61N1/37229 , H01Q3/26
摘要： An antenna structure for an implantable medical device (IMD) is provided that includes an antenna embedded within a structure derived from a plurality of discrete dielectric layers. An array of electrodes are connected to the antenna structure and arranged for applying a bias across selected segments of the dielectric layers for altering the performance characteristics of the antenna. The bias applied by the array of electrodes can be selected to provide desired impedance matching between the antenna and the surrounding environment of the implant location to mitigate energy reflection effects at the transition from the antenna structure to the surrounding environment, to provide beam steering functionality for the antenna, or to alter the gain of the signals received by the antenna. IMD is configured to monitor received signal characteristics (e.g., RSSI, EVM or bit error rate) and alter material properties of the dielectric material through biasing to control antenna performance.
摘要翻译： 提供了一种用于可植入医疗装置（IMD）的天线结构，其包括嵌入在由多个离散电介质层衍生的结构内的天线。 电极阵列连接到天线结构，并布置成用于在电介质层的所选段上施加偏置，以改变天线的性能特征。 可以选择由电极阵列施加的偏置以在天线与植入位置的周围环境之间提供期望的阻抗匹配，以减轻在从天线结构向周围环境的转变时的能量反射效应，以提供用于 天线，或改变由天线接收的信号的增益。 IMD被配置为监视接收的信号特性（例如，RSSI，EVM或误码率），并通过偏置来控制天线性能来改变电介质材料的材料特性。
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公开(公告)号：US20100168817A1
公开(公告)日：2010-07-01
申请号：US12344980
申请日：2008-12-29
IPC分类号： A61N1/08
CPC分类号： H01Q1/273 , A61N1/37229 , H01Q3/26
摘要： An antenna structure for an implantable medical device (IMD) is provided that includes an antenna embedded within a structure derived from a plurality of discrete dielectric layers. An array of electrodes are connected to the antenna structure and arranged for applying a bias across selected segments of the dielectric layers for altering the performance characteristics of the antenna. The bias applied by the array of electrodes can be selected to provide desired impedance matching between the antenna and the surrounding environment of the implant location to mitigate energy reflection effects at the transition from the antenna structure to the surrounding environment, to provide beam steering functionality for the antenna, or to alter the gain of the signals received by the antenna. IMD is configured to monitor received signal characteristics (e.g., RSSI, EVM or bit error rate) and alter material properties of the dielectric material through biasing to control antenna performance.
摘要翻译： 提供了一种用于可植入医疗装置（IMD）的天线结构，其包括嵌入在由多个离散电介质层衍生的结构内的天线。 电极阵列连接到天线结构，并布置成用于在电介质层的所选段上施加偏置，以改变天线的性能特征。 可以选择由电极阵列施加的偏置以在天线与植入位置的周围环境之间提供期望的阻抗匹配，以减轻在从天线结构向周围环境的转变时的能量反射效应，以提供用于 天线，或改变由天线接收的信号的增益。 IMD被配置为监视接收的信号特性（例如，RSSI，EVM或误码率），并通过偏置来控制天线性能来改变电介质材料的材料特性。
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公开(公告)号：US07392015B1
公开(公告)日：2008-06-24
申请号：US10753502
申请日：2004-01-07
IPC分类号： H04B17/00
CPC分类号： H04B17/21 , H04B7/06 , H04B7/0825
摘要： Calibration methods and structures are provided for wireless communications devices that compensate across a signal bandwidth for relative gain and phase errors between spatial communication channels while utilizing existing transceiver structures and facilitating the use of frequency-domain spatial processing. The methods and structures are directed to time-division duplex (TDD) systems, and are particularly suited to those that incorporate orthogonal frequency division multiplexing (OFDM).
摘要翻译： 为无线通信设备提供了校准方法和结构，用于在利用现有的收发器结构并且促进使用频域空间处理的同时，在信号带宽之间补偿空间通信信道之间的相对增益和相位误差。 这些方法和结构涉及时分双工（TDD）系统，并且特别适用于那些并入正交频分复用（OFDM）的系统。
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