-
公开(公告)号：US07522883B2
公开(公告)日：2009-04-21
申请号：US11302896
申请日：2005-12-14
CPC分类号： H04B1/123 , H04B1/7103
摘要： Signals propagating on an aggressor communication channel can cause interference in a victim communication channel. A sensor coupled to the aggressor channel can obtain a sample of the aggressor signal. The sensor can be integrated with or embedded in a system, such as a flex circuit or a circuit board, that comprises the aggressor channel. The sensor can comprise a dedicated conductor or circuit trace that is near an aggressor conductor, a victim conductor, or an EM field associated with the interference. An interference compensation circuit can receive the sample from the sensor. The interference compensation circuit can have at least two operational modes of operation. In the first mode, the circuit can actively generate or output a compensation signal that cancels, corrects, or suppresses the interference. The second mode can be a standby, idle, power-saving, passive, or sleep mode.
摘要翻译： 在侵略者通信信道上传播的信号可能会对受害者通信信道造成干扰。 耦合到侵略者信道的传感器可以获得侵略者信号的样本。 传感器可以集成或嵌入在包括侵略者通道的系统中，例如柔性电路或电路板。 传感器可以包括靠近侵略者导体，受害导体或与干扰相关联的EM场的专用导体或电路迹线。 干扰补偿电路可以从传感器接收样品。 干扰补偿电路可以具有至少两种操作操作模式。 在第一模式中，电路可以主动地产生或输出消除，校正或抑制干扰的补偿信号。 第二种模式可以是待机，空闲，省电，被动或睡眠模式。
-
公开(公告)号：US07489201B2
公开(公告)日：2009-02-10
申请号：US11801363
申请日：2007-05-09
申请人： Saikat Sarkar , Padmanava Sen , Stephane Pinel , Joy Laskar
发明人： Saikat Sarkar , Padmanava Sen , Stephane Pinel , Joy Laskar
IPC分类号： H03F3/04
CPC分类号： H03F1/22 , H03F3/191 , H03F3/60 , H03F2200/181 , H03F2200/222 , H03F2200/318 , H03F2200/387
摘要： Disclosed is a gain boosting technique for use with millimeter-wave cascode amplifiers. The exemplary technique may be implemented using a 0.18 μm SiGe process (FT=140 GHz). It has also been shown that the technique is effective for CMOS processes with comparable FT. An exemplary gain-enhanced cascode stage was measured to have higher than 9 dB gain with a 1-dB bandwidth above 6 GHz with a DC power consumption of 13 mW. In addition, one cascode stage without gain boosting may be cascaded with two gain-boosted cascode amplifier stages to implement a three-stage LNA. The measured stable gain is higher than 24 dB at 60 GHz with a 3-dB bandwidth of 3.1 GHz for 25 mW of DC power consumption. It is believed that this is the first 60 GHz LNA with a higher than 20 dB gain using a 0.18 μm SiGe process.
摘要翻译： 公开了一种用于毫米波共源共栅放大器的增益技术。 可以使用0.18μmSiGe工艺（FT = 140GHz）来实现示例性技术。 还已经表明，该技术对于具有相当的FT的CMOS工艺是有效的。 测量一个示例性的增益增益共源共栅级，具有高于9 dB的增益，1 GHz带宽高于6 GHz，直流功耗为13 mW。 另外，没有增益升压的一个级联级可以与两个增益升压的共源共栅放大器级级联以实现三级LNA。 测量的稳定增益在60 GHz时高于24 dB，对于25 mW的直流功耗，3.1 GHz的3 dB带宽。 相信这是使用0.18 mum SiGe工艺的第一个60 GHz LNA，具有高于20 dB的增益。
-
公开(公告)号：US20060178157A1
公开(公告)日：2006-08-10
申请号：US11302896
申请日：2005-12-14
申请人： Edward Gebara , Andrew Kim , Joy Laskar , Anthony Stelliga , Emmanouil Tentzeris
发明人： Edward Gebara , Andrew Kim , Joy Laskar , Anthony Stelliga , Emmanouil Tentzeris
CPC分类号： H04B1/123 , H04B1/7103
摘要： Signals propagating on an aggressor communication channel can cause interference in a victim communication channel. A sensor coupled to the aggressor channel can obtain a sample of the aggressor signal. The sensor can be integrated with or embedded in a system, such as a flex circuit or a circuit board, that comprises the aggressor channel. The sensor can comprise a dedicated conductor or circuit trace that is near an aggressor conductor, a victim conductor, or an EM field associated with the interference. An interference compensation circuit can receive the sample from the sensor. The interference compensation circuit can have at least two operational modes of operation. In the first mode, the circuit can actively generate or output a compensation signal that cancels, corrects, or suppresses the interference. The second mode can be a standby, idle, power-saving, passive, or sleep mode.
-
公开(公告)号：US20200076471A1
公开(公告)日：2020-03-05
申请号：US16424295
申请日：2019-05-28
申请人： John F. Sevic , Romain Pelard , Joy Laskar
发明人： John F. Sevic , Romain Pelard , Joy Laskar
摘要： A transmitter or transceiver assembly includes at least one transmitter module. The transmitter module includes a matrix of transmitter integrated circuit die and a matrix of antennas, each antenna being coupled to a respective transmitter integrated circuit die. The matrix of antennas is configured to reduce interaction between signals transmitted by respective ones of the antennas.
-
公开(公告)号：US08463280B1
公开(公告)日：2013-06-11
申请号：US12712777
申请日：2010-02-25
申请人： Kyutae Lim , Joy Laskar , Ara Chakrabarti
发明人： Kyutae Lim , Joy Laskar , Ara Chakrabarti
IPC分类号： G06F15/16
CPC分类号： H04W36/32 , H04W4/029 , H04W28/26 , H04W72/048 , Y02D70/142 , Y02D70/164
摘要： A method and process for establishing a mapped network of access points for a user of a wireless device is provided. A unique and customized network is selected from cellular connections, private wireless connections, public wireless connections, and wireless card connections such that a unique and personalized control of wireless connectivity may be established. Greater wireless resources are thus made available and provide for greater connectivity and improved battery life for a user's device.
摘要翻译： 提供了一种用于为无线设备的用户建立接入点的映射网络的方法和过程。 从蜂窝连接，专用无线连接，公共无线连接和无线卡连接中选择独特且定制的网络，从而可以建立独特且个性化的无线连接控制。 因此，更大的无线资源可用，并为用户的设备提供更大的连接性和改善的电池寿命。
-
公开(公告)号：US20120149306A1
公开(公告)日：2012-06-14
申请号：US13397001
申请日：2012-02-15
CPC分类号： H04B1/123 , H04B1/7103
摘要： A method for interference suppression, including receiving a sample of an aggressor communication signal from a sensor embedded in a flex circuit, emulating interference that the aggressor communication signal imposes on a victim communication signal, and suppressing the imposed interference in response to applying the emulated interference to the victim communication signal. In other aspects, the flex circuit comprises a plurality of traces running substantially parallel to one another along a surface of the flex circuit, and the sensor comprises one of the plurality of traces and one of a plurality of traces of another flex circuit. In still other aspects, the flex circuit comprises a plurality of traces running substantially parallel to one another and the sensor comprises a trace of the flex circuit running perpendicular to the plurality of traces running substantially parallel to one another.
摘要翻译： 一种用于干扰抑制的方法，包括从嵌入在柔性电路中的传感器接收侵入者通信信号的样本，模拟侵扰者通信信号对受害者通信信号施加的干扰，以及响应于施加模拟干扰而抑制施加的干扰 对受害者通信信号。 在其他方面，柔性电路包括沿着柔性电路的表面基本上彼此平行地延伸的多条迹线，并且传感器包括多条迹线中的一条和另一条柔性电路的多条迹线之一。 在另外的方面，柔性电路包括基本上彼此平行地延伸的多个迹线，并且传感器包括垂直于基本上彼此平行地延伸的多个迹线垂直运行的柔性电路的迹线。
-
公开(公告)号：US20100214026A1
公开(公告)日：2010-08-26
申请号：US12682352
申请日：2008-10-10
申请人： Padmanava Sen , Saikat Sarkar , Stephane Pinel , Joy Laskar , Francesco Barale
发明人： Padmanava Sen , Saikat Sarkar , Stephane Pinel , Joy Laskar , Francesco Barale
IPC分类号： H03L7/099
CPC分类号： H03K23/483 , H03B5/1852 , H03B21/02 , H03J3/185 , H03L7/099 , H03L7/193 , H03L7/24
摘要： A voltage controlled oscillator-phase lock loop (VCO-PLL) system includes a voltage controlled oscillator (VCO) system implementing four-channel architecture, such that two bands support two channels; a phase-locked-loop (PLL) system; and a mixer system. The VCO system further includes a control circuit; a first cross-coupled oscillator system adapted to receive a source voltage; a second cross-coupled oscillator system adapted to receive the source voltage; and a plurality of isolation buffer systems adapted to protect the first and second cross-coupled oscillator systems.
摘要翻译： 压控振荡器锁相环（VCO-PLL）系统包括实施四通道架构的压控振荡器（VCO）系统，使得两个频带支持两个通道; 锁相环（PLL）系统; 和搅拌机系统。 VCO系统还包括控制电路; 适于接收源电压的第一交叉耦合振荡器系统; 适于接收源电压的第二交叉耦合振荡器系统; 以及适于保护第一和第二交叉耦合振荡器系统的多个隔离缓冲器系统。
-
公开(公告)号：US20090140784A1
公开(公告)日：2009-06-04
申请号：US12327279
申请日：2008-12-03
CPC分类号： H03H15/00 , H03H2015/002
摘要： A first system and method relates to an analog current-mode method using branch systems. In the analog current-mode implementation, multiple branches systems can be scaled according to filter coefficients and switched using known data points. Positive coefficients can add current to the summing node, while negative coefficients can remove current from the summing node. Switches can be implemented with quick charge/discharge paths in order to operate at very high data rates. A second system and method relates to a digital look-up table based high-speed implementation. In the digital implementation, outputs can be pre-calculated as an n-bit output word that drives an n-bit DAC. Each bit of the n-bit word can then described as an independent function of the known data points. Each such function can be implemented as a high-speed combinational logic block. Both systems and methods enable the implementation of pulse shaping filters for multi-gigabit per second data transmission.
摘要翻译： 第一系统和方法涉及使用分支系统的模拟电流模式方法。 在模拟电流模式实现中，可以根据滤波器系数对多个分支系统进行缩放，并使用已知的数据点进行切换。 正系数可以向求和节点添加电流，而负系数可以从求和节点去除电流。 开关可以通过快速充电/放电路径实现，以便以非常高的数据速率运行。 第二系统和方法涉及基于数字查找表的高速实现。 在数字实现中，可以将输出预先计算为驱动n位DAC的n位输出字。 n位字的每个位可以被描述为已知数据点的独立函数。 每个这样的功能可以被实现为高速组合逻辑块。 这两种系统和方法使得能够实现用于千兆位/秒数据传输的脉冲整形滤波器。
-
公开(公告)号：US07173551B2
公开(公告)日：2007-02-06
申请号：US10032586
申请日：2001-12-21
申请人： Michael G. Vrazel , Stephen E. Ralph , Joy Laskar , Sungyong Jung , Vincent Mark Hietala , Edward Gebara
发明人： Michael G. Vrazel , Stephen E. Ralph , Joy Laskar , Sungyong Jung , Vincent Mark Hietala , Edward Gebara
IPC分类号： H03M1/66
CPC分类号： H04L1/0042 , G11C27/02 , H04L25/03343 , H04L27/02 , H04L27/367
摘要： Data throughput rates are increased in an optical fiber communication system without requiring replacement of the existing optical fiber in a link. Channel throughput is increased by upgrading the components and circuitry in the head and terminal of an optical fiber communication system link. Aggregate throughput in a fiber optic link is increased beyond the range of conventional Wavelength Division Multiplexed (WDM) upgrades, while precluding the necessity of replacing existing fiber plants. The increase in system throughput is achieved by using advanced modulation techniques to encode greater amounts of data into the transmitted spectrum of a channel, thereby increasing the spectral efficiency of each channel. This novel method of increasing transmission capacity by upgrading the head and terminal of the system to achieve greater spectral efficiency and hence throughput, alleviates the need to replace existing fiber plants. Spectrally efficient complex modulation techniques can be supported by interface circuits with an increased level of signal processing capability in order to both encode multiple bits into a transmitted symbol and decode the original data from the received symbols.
-
90.发明授权Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver 有权在射频（RF）接收机中同时容纳低功率信号和干扰信号公开(公告)号：US09509351B2
公开(公告)日：2016-11-29
申请号：US13559745
申请日：2012-07-27
CPC分类号： H04B1/10 , H03L7/06 , H04B1/0028 , H04B1/28
摘要： A method includes providing a highly linear front end in a Radio Frequency (RF) receiver, implementing a high Effective Number of Bits (ENOB) Analog to Digital Converter (ADC) circuit in the RF receiver, and sampling, through the high ENOB ADC circuit, at a frequency having harmonics that do not coincide with a desired signal component of an input signal of the RF receiver to eliminate spurs within a data bandwidth of the RF receiver. The input signal includes the desired signal component and an interference signal component. The interference signal component has a higher power level than the desired signal component. The method also includes simultaneously accommodating the desired signal component and the interference signal component in the RF receiver based on an increased dynamic range of the RF receiver and the high ENOB ADC circuit provided through the highly linear front end and the high ENOB ADC circuit.
摘要翻译： 一种方法包括在射频（RF）接收机中提供高度线性的前端，实现RF接收机中的高有效位数（ENOB）模/数转换器（ADC）电路，并通过高ENOB ADC电路进行采样 ，其频率具有与RF接收机的输入信号的期望信号分量不一致的谐波，以消除RF接收机的数据带宽内的杂散。 输入信号包括期望的信号分量和干扰信号分量。 干扰信号分量具有比期望的信号分量更高的功率水平。 该方法还包括基于通过高线性前端和高ENOB ADC电路提供的RF接收机和高ENOB ADC电路的增加的动态范围，同时容纳RF接收机中的期望信号分量和干扰信号分量。
-
-
-
-
-
-
-
-
-
搜索结果
111 条记录 (耗时 0.032 秒)
