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    RF integrated circuit test methodology and system
    41.
    发明授权
    RF integrated circuit test methodology and system 有权
    射频集成电路测试方法和系统

    公开(公告)号：US07915909B2

    公开(公告)日：2011-03-29

    申请号：US12059757

    申请日：2008-03-31

    申请人： Clifford J. Dunn ,  George Palmer ,  Jeffrey M. Gilbert

    发明人： Clifford J. Dunn ,  George Palmer ,  Jeffrey M. Gilbert

    IPC分类号： G01R31/00

    CPC分类号： G01R31/2822

    摘要： Over the air or radiated testing of an RF microelectronic or integrated circuit device under test (DUT) that has an integrated millimeter wave (mmw) antenna structure, is described. The antenna structure may have multiple elements in an array design that may be driven and/or sensed by integrated RF transmitter and/or receiver circuitry. An interface printed wiring board (e.g., a tester load board or a wafer probe card assembly) has formed in it a mmw radiation passage that is positioned to pass mmw radiation to and/or from the integrated antenna of the DUT. Test equipment may be conductively coupled to contact points of the interface board, to transmit and/or receive signals for testing of the DUT and/or provide dc power to the DUT. A test antenna is designed and positioned to receive and/or transmit mmw radiation through the passage, from and/or to the integrated DUT antenna. Other embodiments are also described and claimed.

    摘要翻译： 描述了具有集成毫米波（mmw）天线结构的RF微电子或被测试的集成电路器件（DUT）的空中或辐射测试（DUT）。 天线结构可以具有可由集成RF发射器和/或接收器电路驱动和/或感测的阵列设计中的多个元件。 接口印刷电路板（例如，测试仪负载板或晶片探针卡组件）中形成有一个mmw辐射通道，该辐射通道定位成通过与DUT的集成天线之间的辐射。 测试设备可以导电耦合到接口板的接触点，以发射和/或接收用于测试DUT的信号和/或向DUT提供直流电力。 测试天线被设计和定位成接收和/或传输穿过通道，从和/或到集成的DUT天线的mmw辐射。 还描述和要求保护其他实施例。

    Spur mitigation techniques
    42.
    发明授权
    Spur mitigation techniques 有权
    刺激减轻技术

    公开(公告)号：US07835456B2

    公开(公告)日：2010-11-16

    申请号：US11952040

    申请日：2007-12-06

    申请人： Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang ,  Xiaoru Zhang

    发明人： Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang ,  Xiaoru Zhang

    IPC分类号： H04L27/28

    CPC分类号： H04L25/0232 ,  H04L1/0045 ,  H04L27/2647

    摘要： Spurs cause significant problems with signal detecting, amplifier gain adjustment, and signal decoding. Various techniques can be used to mitigate the effects of spurs on a received signal. Generally, these techniques work by either canceling or ignoring the spurs. For example, a pilot mask can be used to ignore pilot information in one or more sub-channels. A Viterbi mask can determine the weighting given to bits in a sub-channel based on spur and data rate information. Channel interpolation can compute a pseudo channel estimate for a sub-channel known to have a spur location can be computed by interpolating the channel estimates of adjacent good sub-channels. Filtering of the received signal using a low-pass filter, a growing box filter, or a low-pass filter with self-correlation can be used to cancel a spur.

    摘要翻译： 马刺在信号检测，放大器增益调整和信号解码方面造成重大问题。 可以使用各种技术来减轻杂散对接收信号的影响。 一般来说，这些技术通过取消或忽略杂散来工作。 例如，可以使用导频掩码来忽略一个或多个子信道中的导频信息。 维特比掩码可以基于支线和数据速率信息来确定子信道中的比特的加权。 信道内插可以计算已知具有支路位置的子信道的伪信道估计，可以通过内插相邻的良好子信道的信道估计来计算。 使用低通滤波器，增长盒滤波器或具有自相关的低通滤波器对接收信号进行滤波可以用于取消杂散。

    Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals
    43.
    发明授权
    Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals 有权
    多天线接收机组合高数据率宽带分组化无线通信信号的装置和方法

    公开(公告)号：US07672220B2

    公开(公告)日：2010-03-02

    申请号：US12043694

    申请日：2008-03-06

    申请人： Ardavan Maleki Tehrani ,  Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang

    发明人： Ardavan Maleki Tehrani ,  Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang

    IPC分类号： H04L5/04

    CPC分类号： H04L27/2657 ,  H04B7/0845 ,  H04B7/0848 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675

    摘要： The present invention provides an apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals, where the apparatus includes M receive antennas, receiving M high data rate wideband packetized wireless communication signals, where each of the signals includes N frequency bins. The apparatus, in an exemplary embodiment, includes (1) a joint timing recovery units that perform joint coarse signal timing estimation, joint frequency offset estimation, and joint fine timing estimation on each of the signals, (2) M Fast Fourier Transform units (FFTs) that each convert the digital data for each of the M signals into frequency domain information for each of the N received frequencies and that output Q pilots for each of the signals, where Q is a positive integer, and (3) a combiner that weights and combines the outputs of the M FFTs for each of the N received frequencies.

    摘要翻译： 本发明提供了一种多天线接收机组合的高数据率宽带分组化无线通信信号的装置和方法，其中该装置包括M个接收天线，接收M个高数据速率宽带分组化无线通信信号，其中每个信号包括N个频率 箱子。 在一个示例性实施例中，该装置包括（1）联合定时恢复单元，其对每个信号执行联合粗略信号定时估计，联合频率偏移估计和联合精细定时估计，（2）M个快速傅里叶变换单元 FFT），其将每个M个信号的数字数据转换为N个接收频率中的每一个的频域信息，并且为每个信号输出Q个导频，其中Q是正整数，以及（3）组合器， 对N个接收频率中的每一个进行加权并组合M FFT的输出。

    Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals
    45.
    发明授权
    Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals 有权
    高数据率宽带分组化无线通信信号的多天线发射机波束成形的装置和方法

    公开(公告)号：US07385914B2

    公开(公告)日：2008-06-10

    申请号：US10682381

    申请日：2003-10-08

    申请人： Won-Joon Choi ,  Ardavan M. Tehrani ,  Jeffrey M. Gilbert ,  Samuel Ng

    发明人： Won-Joon Choi ,  Ardavan M. Tehrani ,  Jeffrey M. Gilbert ,  Samuel Ng

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2626 ,  H04B7/0617 ,  H04L25/0206 ,  H04L27/2608 ,  H04L27/2614

    摘要： The present invention provides an apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals, where each of the signals comprises N frequencies, where N is a positive integer. The apparatus, in an exemplary embodiment, includes (1) a transmit beamformer that co-phases and weights the signals for each of the N frequencies across M antennas, thereby generating M co-phased and weighted frequency data and (2) M Inverse Fast Fourier Transform units (IFFTs) that convert the M co-phased and weighted frequency data into M digital outputs, and M transmit antennas transmitting the M co-phased and weighted signals, where M is an integer greater than or equal to 2.

    摘要翻译： 本发明提供了一种高数据速率宽带分组化无线通信信号的多天线发射机波束成形的装置和方法，其中每个信号包括N个频率，其中N是正整数。 在示例性实施例中，该装置包括：（1）发射波束形成器，其对M个天线中的每个N个频率的信号进行共相并加权，由此产生M个同相和加权的频率数据;（2）M 将M个相位和加权频率数据转换为M个数字输出的傅里叶变换单元（IFFT），以及发射M个同相加权信号的M个发射天线，其中M是大于或等于2的整数。

    Multi-channel RX/TX calibration and local oscillator mismatch mitigation
    49.
    发明授权
    Multi-channel RX/TX calibration and local oscillator mismatch mitigation 失效
    多通道RX / TX校准和本地振荡器失配减轻

    公开(公告)号：US08532598B1

    公开(公告)日：2013-09-10

    申请号：US12942659

    申请日：2010-11-09

    申请人： Donald Breslin ,  Jeffrey M. Gilbert

    发明人： Donald Breslin ,  Jeffrey M. Gilbert

    IPC分类号： H04B15/00 ,  H04B17/00

    CPC分类号： H01Q21/29 ,  H04B17/11

    摘要： A method and system of optimizing transmit beam forming in a multiple radio wireless system is provided. A stimulus signal can be provided to an analog receive input of a device under test (DUT), wherein the DUT includes multiple radios. A receive phase and amplitude can be measured at baseband using the stimulus signal for each radio. At this point, a receive weight and its conjugate can be determined using the receive phases and amplitudes. A calibration vector and its conjugate can also be determined, wherein a product of the receive weight conjugate and the calibration vector conjugate generate a transmit weight. This transmit weight can be applied to transmit signals during the transmit beam forming using the multiple radios.

    摘要翻译： 提供了一种在多无线电无线系统中优化发射波束形成的方法和系统。 激励信号可以被提供给待测器件（DUT）的模拟接收输入，其中DUT包括多个无线电。 可以使用每个无线电的激励信号在基带处测量接收相位和幅度。 在这一点上，可以使用接收相位和振幅来确定接收权重及其共轭。 还可以确定校准向量及其共轭，其中接收权重共轭和校准向量共轭的乘积产生传输权重。 该发送权重可以应用于在使用多个无线电的发射波束形成期间发射信号。

    Wireless HD AV packet format
    50.
    发明授权
    Wireless HD AV packet format 有权
    无线高清AV数据包格式

    公开(公告)号：US08279784B2

    公开(公告)日：2012-10-02

    申请号：US11982209

    申请日：2007-10-31

    申请人： Ching-Hsiu Chiang ,  Jeffrey M. Gilbert ,  Victor Ramamoorthy

    发明人： Ching-Hsiu Chiang ,  Jeffrey M. Gilbert ,  Victor Ramamoorthy

    IPC分类号： H04N21/2368

    CPC分类号： H04L12/6418 ,  G09G5/006 ,  G09G2370/045 ,  G09G2370/10 ,  G09G2370/16 ,  H04L65/607 ,  H04L2012/6448

    摘要： An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.

    摘要翻译： 音频/视频（AV）处理器被耦合到媒体接入控制器（MAC）以产生具有优化格式的复合分组，所述优化格式用于承载音频，视频和数据业务，其中所述组合分组的报头中的字段指定视频专用信息 。 物理设备接口（PHY）耦合到MAC。 PHY在数字信号和调制的模拟信号之间进行编码和解码。 PHY包括高速物理层电路（HRP）和低速物理层电路（LRP）。 射频（RF）发射机耦合到PHY以传输数据。