METHOD AND APPARATUS FOR WAFER-LEVEL SOLDER HERMETIC SEAL ENCAPSULATION OF MEMS DEVICES
    21.
    发明申请
    METHOD AND APPARATUS FOR WAFER-LEVEL SOLDER HERMETIC SEAL ENCAPSULATION OF MEMS DEVICES 审中-公开
    MEMS器件的水平焊缝密封封装的方法和装置

    公开(公告)号:WO2013071051A1

    公开(公告)日:2013-05-16

    申请号:PCT/US2012/064367

    申请日:2012-11-09

    CPC classification number: B81C1/00293 B81C2203/0145

    Abstract: A plurality of MEMS devices are formed on a substrate, a sacrificial layer is formed to cover each of the MEMS devices and a protective cap layer is formed on the sacrificial layer. A release hole is formed through the protective cap layer to the underlying sacrificial layer, and a releasing agent is introduced through the release hole to re¬ move the sacrificial layer under the protective cap layer and expose a MEMS device. The release hole is solder sealed, to form a hermet¬ ic seal of the MEMS device. The method for hermetically sealing the release hole comprises forming a wetting surface on a region adja¬ cent the opening and immersing the wetting surface into a viscous solder to draw a portion of the solder to cover and hermetically seal the opening.

    Abstract translation: 在衬底上形成多个MEMS器件,形成牺牲层以覆盖每个MEMS器件,并且在牺牲层上形成保护帽层。 通过保护盖层形成释放孔到下面的牺牲层,并且通过释放孔引入脱模剂,以将保护盖层下的牺牲层重新移动并暴露MEMS器件。 释放孔被焊接密封,以形成MEMS器件的密封。 用于密封释放孔的方法包括在与开口相邻的区域上形成润湿表面,并将润湿表面浸入粘性焊料中以将一部分焊料覆盖并密封开口。

    CODING OF FEATURE LOCATION INFORMATION
    22.
    发明申请
    CODING OF FEATURE LOCATION INFORMATION 审中-公开
    特征位置信息编码

    公开(公告)号:WO2013022656A2

    公开(公告)日:2013-02-14

    申请号:PCT/US2012/049055

    申请日:2012-07-31

    Abstract: Methods and devices for coding of feature locations are disclosed. In one embodiment, a method of coding feature location information of an image includes generating a hexagonal grid, where the hexagonal grid includes a plurality of hexagonal cells, quantizing feature locations of an image using the hexagonal grid, generating a histogram to record occurrences of feature locations in each hexagonal cell, and encoding the histogram in accordance with the occurrences of feature locations in each hexagonal cell. The method of encoding the histogram includes applying context information of neighboring hexagonal cells to encode information of a subsequent hexagonal cell to be encoded in the histogram, where the context information includes context information from first order neighbors and context information from second order neighbors of the subsequent hexagonal cell to be encoded.

    Abstract translation: 公开了用于编码特征位置的方法和装置。 在一个实施例中,一种编码图像的特征位置信息的方法包括生成六边形网格,其中六边形网格包括多个六边形单元格,使用六边形网格量化图像的特征位置,生成直方图以记录特征的出现 每个六边形单元格中的位置,并根据每个六边形单元格中特征位置的出现来对直方图进行编码。 对直方图进行编码的方法包括应用相邻六边形单元格的上下文信息来编码在直方图中要编码的随后的六边形单元格的信息,其中上下文信息包括来自一阶邻居的上下文信息和来自第二阶邻居的上下文信息 六角形单元格进行编码。

    DESCRIPTOR STORAGE AND SEARCHES OF K-DIMENSIONAL TREES
    23.
    发明申请
    DESCRIPTOR STORAGE AND SEARCHES OF K-DIMENSIONAL TREES 审中-公开
    描述性存储和搜索的K维度

    公开(公告)号:WO2012177410A1

    公开(公告)日:2012-12-27

    申请号:PCT/US2012/041324

    申请日:2012-06-07

    CPC classification number: G06K9/6282 G06K9/6228

    Abstract: Various arrangements for using a k-dimensional tree for a search are presented. A plurality of descriptors may be stored. Each of the plurality of descriptors stored is linked with a first number of stored dimensions. The search may be performed using the k-dimensional tree for one or more query descriptors that at least approximately match one or more of the plurality of descriptors linked with the first number of stored dimensions. The k-dimensional tree may be built using the plurality of descriptors wherein each of the plurality of descriptors is linked with a second number of dimensions when the k-dimensional tree is built. The second number of dimensions may be a greater number of dimensions than the first number of stored dimensions.

    Abstract translation: 提出了使用k维树进行搜索的各种布置。 可以存储多个描述符。 所存储的多个描述符中的每一个与存储维度的第一数量相关联。 可以使用k维树进行搜索,所述查询描述符至少近似地匹配与第一数量的存储维相关联的多个描述符中的一个或多个。 可以使用多个描述符构建k维树,其中当构建k维树时,多个描述符中的每个描述符与第二数量的维度相关联。 第二数量的尺寸可以是比第一数量的存储尺寸更大的尺寸数量。

    PERFORMING ENHANCED SIGMA-DELTA MODULATION
    24.
    发明申请
    PERFORMING ENHANCED SIGMA-DELTA MODULATION 审中-公开
    执行增强的SIGMA-DELTA调制

    公开(公告)号:WO2012074941A1

    公开(公告)日:2012-06-07

    申请号:PCT/US2011/062270

    申请日:2011-11-28

    CPC classification number: H03M3/492 H03M3/422 H03M3/456

    Abstract: In general, techniques are described for performing enhanced sigma-delta modulation. For example, an apparatus comprising a predictive filter unit, an amplifier, an oversampling unit and a sigma-delta modulation unit may implement the techniques. The predictive filter unit performs predictive filtering on an input signal to generate a filtered signal and computes an estimate of a predictive gain as a function of an energy of the input signal and an energy of the filtered signal. The amplifier receives the filtered signal and amplifies the filtered signal based on the predictive gain to generate an amplified signal. The oversampling unit receives the amplifies signal and performs oversampling in accordance with an oversampling rate to generate an oversampled signal. The sigma-delta modulation unit receives the oversampled signal and performs sigma-delta modulation to generate a modulated signal.

    Abstract translation: 通常,描述了用于执行增强的Σ-Δ调制的技术。 例如,包括预测滤波器单元,放大器,过采样单元和Σ-Δ调制单元的装置可以实现这些技术。 预测滤波器单元对输入信号执行预测滤波以产生经滤波的信号,并且计算作为输入信号的能量和滤波信号的能量的函数的预测增益的估计。 放大器接收经过滤波的信号,并根据预测增益对滤波信号进行放大,以产生放大信号。 过采样单元接收放大信号,并根据过采样率进行过采样以产生过采样信号。 Σ-Δ调制单元接收过采样信号并执行Σ-Δ调制以产生调制信号。

    PEAK SIGNAL DETECTOR
    25.
    发明申请
    PEAK SIGNAL DETECTOR 审中-公开
    峰值信号检测器

    公开(公告)号:WO2008060672A1

    公开(公告)日:2008-05-22

    申请号:PCT/US2007/067565

    申请日:2007-04-26

    CPC classification number: H04B1/7183

    Abstract: A matched filter and peak detector identify peaks of a received signal. The peak detector may detect peaks during a fixed or adjustable time window. The peaks may be used as a preliminary decision (e.g., soft decision) for subsequent receiver decoding operations. The detector may be used to detect high bandwidth signals such as ultra-wide band signal pulses yet consume relatively minimal power.

    Abstract translation: 匹配滤波器和峰值检测器识别接收信号的峰值。 峰值检测器可以在固定或可调整的时间窗口期间检测峰值。 峰可以用作随后的接收机解码操作的初步判定(例如,软判决)。 检测器可用于检测高带宽信号,例如超宽带信号脉冲,但消耗相对较小的功率。

    APPARATUS AND METHOD OF LOW LATENCY MULTI-HOP COMMUNICATION
    26.
    发明申请
    APPARATUS AND METHOD OF LOW LATENCY MULTI-HOP COMMUNICATION 审中-公开
    低功耗多通信通信的装置和方法

    公开(公告)号:WO2007124339A1

    公开(公告)日:2007-11-01

    申请号:PCT/US2007/066929

    申请日:2007-04-19

    CPC classification number: H04W88/04 H04B1/38 H04W16/14 H04W88/06

    Abstract: Aspects include methods and apparatuses for communicating in an ultra-wideband transmission. For example, some aspects include methods and apparatuses for multi-hop communication. For example, some aspects include a method of communicating data. The method includes receiving pulses indicative of a frame during a first time period and transmitting pulses indicative of the frame during a second time period to at least one device. The first and second time periods at least partially overlap. Other aspects include apparatus and devices for multi-hop communication.

    Abstract translation: 方面包括用于在超宽带传输中通信的方法和装置。 例如,一些方面包括用于多跳通信的方法和装置。 例如,一些方面包括传达数据的方法。 该方法包括在第一时间周期期间接收指示帧的脉冲,并且在第二时间段期间将指示帧的脉冲发送到至少一个设备。 第一和第二时间段至少部分重叠。 其他方面包括用于多跳通信的装置和装置。

    MULTI-LEVEL DUTY CYCLING
    28.
    发明申请
    MULTI-LEVEL DUTY CYCLING 审中-公开
    多层次循环

    公开(公告)号:WO2009131589A1

    公开(公告)日:2009-10-29

    申请号:PCT/US2008/063476

    申请日:2008-05-12

    Abstract: A duty cycle scheme for wireless communication employs three or more duty cycle levels. In some aspects, a wireless device may continually scan for signals in an active state associated with a first duty cycle, periodically scan for signals during a periodic state associated with a second duty cycle, and periodically scan for signals during a standby state associated with a third duty cycle. Here, the second duty cycle may be lower than the first duty cycle and the third duty cycle may be lower than the second duty cycle. In some aspects the timing of different states may be correlated. In some aspects each wireless in a system may independently control its duty cycle states.

    Abstract translation: 无线通信的占空比方案采用三个或更多个占空比水平。 在一些方面,无线设备可以连续地扫描与第一占空比关联的活动状态的信号,在与第二占空比相关联的周期性状态期间周期性地扫描信号,并且在与第一占空比相关联的待机状态期间周期性地扫描信号 第三个工作周期。 这里,第二占空比可以低于第一占空比,并且第三占空比可以低于第二占空比。 在某些方面,不同状态的时序可能相关。 在某些方面,系统中的每个无线系统可以独立地控制其占空比状态。

    TRANSMITTED REFERENCE SIGNALING SCHEME
    30.
    发明申请
    TRANSMITTED REFERENCE SIGNALING SCHEME 审中-公开
    发送参考信号方案

    公开(公告)号:WO2008061057A2

    公开(公告)日:2008-05-22

    申请号:PCT/US2007/084415

    申请日:2007-11-12

    CPC classification number: H04B1/7176

    Abstract: A signaling scheme employs transmitted reference pulses having varying phase. The phase of the reference pulses may be varied in a random manner or in accordance with a data stream. In some aspects a transmitter modulates the phase of the reference pulses to encode an additional data stream in a transmitted reference signal. In some aspects these techniques are employed in a heterogeneous network including coherent and non-coherent receivers. In some aspects these techniques may be employed in an ultra-wide band system.

    Abstract translation: 信令方案采用具有不同相位的发射参考脉冲。 参考脉冲的相位可以以随机方式或根据数据流来改变。 在一些方面,发射机调制参考脉冲的相位以对所传送的参考信号中的附加数据流进行编码。 在一些方面,这些技术用于包括相干和非相干接收机的异构网络。 在一些方面,这些技术可以用在超宽带系统中。

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