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    • 1. 发明申请
    • ULTRASONIC TRANSDUCER
    • 超声波传感器
    • US20130023801A1
    • 2013-01-24
    • US13520699
    • 2011-04-02
    • Zhibiao WangHua WangDeping ZengChunliang ZhaoFangwei YeSanyong LiGuihua XuXiaobo Gong
    • Zhibiao WangHua WangDeping ZengChunliang ZhaoFangwei YeSanyong LiGuihua XuXiaobo Gong
    • A61N7/00
    • A61N7/02A61B8/4455A61N2007/006A61N2007/0069A61N2007/0078B06B1/0637G10K11/32
    • An ultrasonic transducer is disclosed, which includes one or a plurality of ultrasonic emitting units. Wavefronts of the ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are sphere surfaces with uniform radius, and the one or the plurality of ultrasonic emitting units can reflect ultrasound. The one ultrasonic emitting unit is configured to form a spherical resonant cavity, or the plurality of ultrasonic emitting units are configured to form a spherical resonant cavity collectively. An internal cavity of the spherical resonant cavity has a spherical shell shape or a cross-sectional spherical shell shape with a spherical center therein. The ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are focused on an area in which the spherical center of the spherical resonant cavity is located. The ultrasonic transducer not only can be provided with a large ultrasonic emitting area and a great focusing gain that render the energy of the ultrasonic focus enhanced dramatically, but also can be free from the influence of work frequency of an ultrasonic source.
    • 公开了一种超声换能器,其包括一个或多个超声波发射单元。 由一个或多个超声波发射单元发射的超声波的波前是具有均匀半径的球面,并且一个或多个超声波发射单元可以反射超声波。 一个超声波发射单元被配置为形成球面谐振腔,或者多个超声波发射单元被配置为共同形成球面谐振腔。 球形谐振腔的内腔具有球形壳体形状或截面球形壳体形状,其中具有球形中心。 由一个或多个超声波发射单元发射的超声波聚焦在球面谐振腔的球形中心所在的区域上。 超声波换能器不仅可以提供大的超声波发射区域和大的聚焦增益,使超声波的能量显着提高,而且可以免受超声波源的工作频率的影响。
    • 2. 发明授权
    • Ultrasonic transducer
    • 超声波换能器
    • US09242121B2
    • 2016-01-26
    • US13520699
    • 2011-04-02
    • Zhibiao WangHua WangDeping ZengChunliang ZhaoFangwei YeSanyong LiGuihua XuXiaobo Gong
    • Zhibiao WangHua WangDeping ZengChunliang ZhaoFangwei YeSanyong LiGuihua XuXiaobo Gong
    • A61N7/00A61N7/02G10K11/32B06B1/06A61B8/00
    • A61N7/02A61B8/4455A61N2007/006A61N2007/0069A61N2007/0078B06B1/0637G10K11/32
    • An ultrasonic transducer is disclosed, which includes one or a plurality of ultrasonic emitting units. Wavefronts of the ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are sphere surfaces with uniform radius, and the one or the plurality of ultrasonic emitting units can reflect ultrasound. The one ultrasonic emitting unit is configured to form a spherical resonant cavity, or the plurality of ultrasonic emitting units are configured to form a spherical resonant cavity collectively. An internal cavity of the spherical resonant cavity has a spherical shell shape or a cross-sectional spherical shell shape with a spherical center therein. The ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are focused on an area in which the spherical center of the spherical resonant cavity is located. The ultrasonic transducer not only can be provided with a large ultrasonic emitting area and a great focusing gain that render the energy of the ultrasonic focus enhanced dramatically, but also can be free from the influence of work frequency of an ultrasonic source.
    • 公开了一种超声换能器,其包括一个或多个超声波发射单元。 由一个或多个超声波发射单元发射的超声波的波前是具有均匀半径的球面,并且一个或多个超声波发射单元可以反射超声波。 一个超声波发射单元被配置为形成球面谐振腔,或者多个超声波发射单元被配置为共同形成球面谐振腔。 球形谐振腔的内腔具有球形壳体形状或截面球形壳体形状,其中具有球形中心。 由一个或多个超声波发射单元发射的超声波聚焦在球面谐振腔的球形中心所在的区域上。 超声波换能器不仅可以提供大的超声波发射区域和大的聚焦增益,使超声波的能量显着提高,而且可以免受超声波源的工作频率的影响。
    • 3. 发明授权
    • Methods and apparatus for opportunistic scheduling of peer to peer links in wide area network
    • 广域网中对等链路机会调度的方法与装置
    • US09585176B2
    • 2017-02-28
    • US13449131
    • 2012-04-17
    • Junyi LiHua WangShailesh Patil
    • Junyi LiHua WangShailesh Patil
    • H04L12/26H04W76/02H04W16/14H04W72/04
    • H04W76/023H04W16/14H04W72/04H04W76/14
    • A method, a computer program product, and an apparatus are provided. The apparatus determines an availability of a wireless wide area network (WWAN) subframe, and utilizes the WWAN subframe for peer-to-peer communication when the WWAN subframe is available. Accordingly, peer mobile terminals or devices may establish direct peer-to-peer links for communicating small amounts of information without affecting the quality of existing WWAN communications. In the wireless wide area network (WWAN) scenario, communication between mobile terminals is facilitated through uplink/downlink channels between the mobile terminals and a base station (i.e., WWAN link). Therefore, for various types of applications, an efficient means of communicating a small amount of information frequently is provided that does not require large amounts of signaling overhead.
    • 提供了一种方法,计算机程序产品和装置。 该装置确定无线广域网(WWAN)子帧的可用性,并且当WWAN子帧可用时,利用WWAN子帧进行对等通信。 因此,对等移动终端或设备可以建立用于传送少量信息的直接对等链路,而不影响现有WWAN通信的质量。 在无线广域网(WWAN)场景中,通过移动终端与基站(即WWAN链路)之间的上行链路/下行链路信道来促进移动终端之间的通信。 因此,对于各种类型的应用,提供了不需要大量信令开销的频繁传送少量信息的有效手段。
    • 6. 发明授权
    • Effective-inductance-change based magnetic particle sensing
    • 基于有效电感变化的磁性粒子感应
    • US09176206B2
    • 2015-11-03
    • US12399603
    • 2009-03-06
    • Hua WangSeyed Ali HajimiriYan Chen
    • Hua WangSeyed Ali HajimiriYan Chen
    • G01N27/00G01N33/00G01R33/12
    • G01R33/1269
    • The invention relates to an integrated measurement system to detect a quantity of magnetic particles in a sample. The measurement system includes a substrate. An electromagnetic (EM) structure disposed on the surface of the substrate is configured to receive a sample including the magnetic particles in proximity thereof. The integrated measurement system also includes an electrical current generator disposed on the surface of the substrate which is electro-magnetically coupled to the EM structure. The electrical current generator is configured to cause an electrical current to flow in the EM structure. The integrated measurement system also includes an effective inductance sensor disposed on the surface of the substrate which is configured to measure a selected one of an effective inductance and a change in effective inductance. The invention also relates to a method to determine the number of and/or the locations of the magnetic particles in a sample.
    • 本发明涉及一种用于检测样品中的磁性颗粒的量的综合测量系统。 测量系统包括基板。 设置在基板的表面上的电磁(EM)结构被配置为接收包括邻近的磁性颗粒的样品。 集成测量系统还包括设置在基板的表面上的电流发生器,其电磁耦合到EM结构。 电流发生器被配置为使得电流在EM结构中流动。 集成测量系统还包括设置在衬底的表面上的有效电感传感器,其被配置为测量有效电感和有效电感的变化中选定的一个。 本发明还涉及确定样品中磁性颗粒数量和/或位置的方法。
    • 10. 发明授权
    • Ultrasensitive detection platform for sensing magnetic and/or electrical energy change
    • 用于感测磁和/或电能变化的超灵敏检测平台
    • US08878684B2
    • 2014-11-04
    • US12959331
    • 2010-12-02
    • Hua WangSeyed Ali Hajimiri
    • Hua WangSeyed Ali Hajimiri
    • G08B21/00
    • G01R29/26G01R31/31709G01R33/1269
    • A scalable and ultrasensitive frequency-shift magnetic array scheme. The theoretical limit of the sensor noise floor is shown to be dominated by the phase noise of the sensing oscillators. To increase the sensitivity, a noise suppression technique, Correlated Double Counting (CDC), is described with no power overhead. As an implementation example, a 64-cell sensor array is designed in a standard 65 nm CMOS process. The CDC scheme achieves an additional 6 dB noise suppression. The magnetic sensing capability of the presented sensor is verified by detecting micron size magnetic particles with an SNR of 14.6 dB for a single bead and an effective dynamic range of at least 74.5 dB. Applications in biosensing are contemplated, among other possible uses. Measurement of electrical properties is also contemplated.
    • 可扩展和超灵敏的频移磁阵列方案。 传感器本底噪声的理论极限显示为感知振荡器的相位噪声。 为了提高灵敏度,在没有功率开销的情况下描述了噪声抑制技术相关双计数(CDC)。 作为实现示例,64标准的传感器阵列被设计在标准的65nm CMOS工艺中。 CDC方案实现了额外的6 dB噪声抑制。 通过检测单个珠的SNR为14.6 dB的微米尺寸磁性颗粒和至少74.5 dB的有效动态范围来验证所呈现的传感器的磁感测能力。 考虑到生物传感中的应用以及其它可能的用途。 还考虑了电性能的测量。