Method and apparatus for structure characterization of layered
semiconductors
    1.
    发明授权
    Method and apparatus for structure characterization of layered semiconductors 失效
    层状半导体结构表征的方法和装置

    公开(公告)号:US5847573A

    公开(公告)日:1998-12-08

    申请号:US543250

    申请日:1995-10-13

    CPC classification number: G01R31/2648

    Abstract: A new technique is presented which exploits AC Hall effect in the characterization of layered semiconductor structures. The method involves the use of laser signals by means of optical fibers in the presence of a DC magnetic bias field. Upon incidence the polarization of the optical signal is rotated via a Lorentz force due to the AC Hall effect. As such, the reflected waves carry informations on the Hall mobility of the charge carriers. The calculations show that AC Hall reflection coefficient warrants sufficient intensity to be measured. Our theory is complete in the sense that depth profiling has been explicitly incorporated in the formulation.

    Abstract translation: 提出了一种利用交流霍尔效应来表征分层半导体结构的新技术。 该方法涉及在存在DC磁偏置场的情况下通过光纤使用激光信号。 在入射时,由于AC霍尔效应,光信号的偏振由洛伦兹力旋转。 因此,反射波携带关于电荷载体的霍尔迁移率的信息。 计算结果表明,交流霍尔反射系数需要足够的强度进行测量。 我们的理论是完整的,因为深度剖析已经明确地纳入了这个表述。

    Tunable millimeter wave filter using ferromagnetic metal films
    2.
    发明授权
    Tunable millimeter wave filter using ferromagnetic metal films 失效
    可调式毫米波滤波器采用铁磁金属膜

    公开(公告)号:US5568106A

    公开(公告)日:1996-10-22

    申请号:US222468

    申请日:1994-04-04

    CPC classification number: H01P1/2039 H01P1/215

    Abstract: The present invention discloses a frequency tunable filter which includes an electromagnetic (E-M) wave propagation line which includes a microstrip and a ground plane in the substrate for transmitting a sequence of E-M signals via the propagation line. The E-M wave propagation line includes a frequency tuning mechanism, i.e., the magnetic layer, which is capable of utilizing a ferromagnetic anti-resonance frequency response to the E-M signals transmitted via the propagation line for controlling and frequency tuning the E-M signal transmission. In one of the preferred embodiments, the E-M wave propagation line includes a microstrip forming on the top surface of a dielectric or semiconductor substrate for receiving and transmitting the E-M signals and a ground plane forming on the bottom surface of the semiconductor substrate. And, the frequency tuning mechanism includes a ferromagnetic layer formed in the substrate between the microstrip and the ground plane.

    Abstract translation: 本发明公开了一种频率可调滤波器,其包括电磁(E-M)波传播线,其包括微带和基板中的接地平面,用于经由传播线传输一系列E-M信号。 E-M波传播线包括频率调谐机构,即磁性层,其能够利用经由传播线传输的E-M信号的铁磁反共振频率响应,以控制和频率调谐E-M信号传输。 在一个优选实施例中,E-M波传播线包括形成在电介质或半导体衬底的顶表面上的微带,用于接收和传输E-M信号,以及形成在半导体衬底的底表面上的接地平面。 并且,频率调谐机构包括在微带和接地平面之间的基板中形成的铁磁层。

    Method and apparatus of obtaining water conditioning utilizing localized hot zone
    3.
    发明授权
    Method and apparatus of obtaining water conditioning utilizing localized hot zone 失效
    利用局部热区获取水调节的方法和装置

    公开(公告)号:US06730235B2

    公开(公告)日:2004-05-04

    申请号:US10102053

    申请日:2002-03-21

    CPC classification number: A01K63/065

    Abstract: Disclosed is a method and an apparatus enabling water-conditioning processes to be performed using a heater initially equipped with an aquarium tank for the purpose of supplying heat. Instead of allowing heat to propagate globally, reactor housing is introduced in the tank enclosing the heater so as to form a localized hot zone. The temperatures of the hot zone are maintained at high degrees sufficient to initiate various water-conditioning processes with efficiency, including alga control, ammonia control, water-hardness control, and sterilization. The construction of the reactor housing is simple and inexpensive, and its geometry is compatible to a heater which can be purchased commercially. In short, multiple functions are added to a heater installed in an aquarium, performing water-conditioning processes in addition to the basic task of supplying heat, allowing water quality of the aquarium to be improved and maintained.

    Abstract translation: 公开了一种方法和装置,其能够使用最初装备有水族箱的加热器进行水处理工艺,以便供热。 代替使热量在全球范围内传播,反应器壳体被引入到封闭加热器的罐中,以形成局部热区。 热区的温度保持高度足以启动各种水处理工艺,包括藻类控制,氨控制,水硬度控制和灭菌。 反应器壳体的结构简单且便宜,其几何形状与可商购的加热器兼容。 简而言之,除了提供热量的基本任务之外,还可以将多种功能添加到安装在水族箱中的加热器中,进行水处理工艺,从而改善和维护水族箱的水质。

    Method and apparatus of obtaining broadband circulator/isolator operation by shaping the bias magnetic field
    4.
    发明授权
    Method and apparatus of obtaining broadband circulator/isolator operation by shaping the bias magnetic field 失效
    通过成形偏磁场获得宽带环行器/隔离器操作的方法和装置

    公开(公告)号:US07242264B1

    公开(公告)日:2007-07-10

    申请号:US11110073

    申请日:2005-04-21

    Applicant: Hoton How

    Inventor: Hoton How

    CPC classification number: H01P1/362

    Abstract: Disclosed is one method and one apparatus which teach improved techniques in using a shaped bias magnetic field over the active region of a ferrite stripline circulator/isolator circuit. The axial component of the bias field is decreased from the center toward edge, thus it is able to accommodate the accompanying changes in magnetization. This fulfills the requirements that frequencies are scaled with distances thereby warranting broadband operation. Furthermore, the radial component of the bias field is reduced, so as to minimize the generation of non-circulation volume modes. The discontinuity in magnetization distributed over the circulator/isolator active region is reduced, so as to minimize the generation of magnetostatic surface modes. The resultant circulator/isolator performance can thus show a broad bandwidth with improved characteristics in insertion loss and in isolation.

    Abstract translation: 公开了一种方法和一种装置,其教导在铁氧体带状线循环器/隔离器电路的有源区域上使用成形偏置磁场的改进技术。 偏置场的轴向分量从中心向边缘减小,因此能够适应伴随的磁化变化。 这满足了频率按距离缩放的要求,从而保证宽带操作。 此外,偏置场的径向分量减小,以便使不循环体积模式的产生最小化。 分布在循环器/隔离器有源区上的磁化不连续性减小,从而最小化静磁表面模式的产生。 因此,所得到的循环器/隔离器性能可以显示宽带宽,具有改进的插入损耗和隔离特性。

    Electronically tracked road-map system

    公开(公告)号:US06577933B2

    公开(公告)日:2003-06-10

    申请号:US09849894

    申请日:2001-05-07

    Applicant: Hoton How

    Inventor: Hoton How

    Abstract: Disclosed is a method for establishing and utilizing electronic tracks on roads for ground vehicles so as to ease the driving task with added safety and efficiency. Electronic tracks define traces on roads guiding the movement of a ground vehicle in as much as the same way that railroad tracks confine the movement of a train. Speed control can be achieved by using equipments detecting the driving conditions and the road environment along with the gliding action of the ground vehicle on electronic tracks. Automation in driving is thus possible, at least partially. Electronic map can be constructed consisting of many of the electronic tracks. Based upon both the static and dynamic information on roads, an electronic map is able to configure an optimal route connecting two addresses with the shortest time in traveling.

    Method and apparatus of obtaining balanced phase shift
    6.
    发明授权
    Method and apparatus of obtaining balanced phase shift 失效
    获得平衡相移的方法和装置

    公开(公告)号:US06992539B1

    公开(公告)日:2006-01-31

    申请号:US10807476

    申请日:2004-03-24

    Applicant: Hoton How

    Inventor: Hoton How

    CPC classification number: H01P1/19 H01P1/32

    Abstract: Disclosed is a method and an apparatus enabling operation of balanced phase shifts providing uniformity that the insertion loss do not show variation with the derived angles in phase shift. The invention incorporates a resonator supporting nonreciprocal wave propagation. The resonator is divided in two equal parts showing symmetry so that the change in electronic parameters from one part of the resonator counter balances the other part, thereby causing no change to the resonance condition. Amplifiers are thus not needed by the phase-shift operation. Electronically active materials, such as ferrites, ferroelectrics, and/or varactors, are utilized, and the phase shifter device can be fabricated assuming a variety of transmission-line geometries, such as microstrips, striplines, waveguides, coax lines, parallel wires, coplanar waveguides, image lines, fin lines, and slot lines, providing versatility and convenience in applications.

    Abstract translation: 公开了能够实现平衡相移的方法和装置,其提供均匀性,使得插入损耗不显示相移中的导出角度的变化。 本发明包括支持不可逆波传播的谐振器。 谐振器被分成两个相等的部分,示出对称性,使得来自谐振器计数器的一部分的电子参数的变化使另一部分平衡,从而不会改变谐振条件。 放波器因此不需要相移操作。 使用诸如铁氧体,铁电体和/或变容二极管的电活性材料,并且可以假设各种传输线几何形状来制造移相器件,例如微带,带状线,波导,同轴线,平行线,共面 波导,图像线,鳍线和缝线,在应用中提供多功能性和便利性。

    Method and apparatus of obtaining uniform coupling from a nonreciprocal resonator
    7.
    发明授权
    Method and apparatus of obtaining uniform coupling from a nonreciprocal resonator 失效
    从非互易谐振器获得均匀耦合的方法和装置

    公开(公告)号:US06963254B1

    公开(公告)日:2005-11-08

    申请号:US10798054

    申请日:2004-03-12

    Applicant: Hoton How

    Inventor: Hoton How

    CPC classification number: H01P1/32 H01P1/18

    Abstract: Disclosed are one method and one apparatus which enable a non-reciprocal microwave resonator to be coupled in and out at various positions showing the circular symmetry. As such, the transmission phase, but not the amplitude, can be varied, resulting in the operation of a digital phaser. The resonator is electrically connected to two network feeders each of which provides separate phase selectivity. The overall phase selectivity of the phaser is the product of the selectivities of these two network feeders, resulting in a less volume, and hence reduced fabrication costs.

    Abstract translation: 公开了一种方法和一种装置,其使得不可逆微波谐振器能够在表示圆形对称的各种位置处耦合进入和退出。 因此,可以改变传输阶段而不是振幅,从而导致数字移相器的操作。 谐振器电连接到两个网络馈电器,每个馈电器提供单独的相选择性。 移相器的整体相位选择性是这两个网络馈线的选择性的产物,导致较少的体积,因此降低了制造成本。

    Method and apparatus of obtaining security tag operation using local magnetic marker
    8.
    发明授权
    Method and apparatus of obtaining security tag operation using local magnetic marker 失效
    使用本地磁标记获取安全标签操作的方法和装置

    公开(公告)号:US06744366B2

    公开(公告)日:2004-06-01

    申请号:US10115493

    申请日:2002-04-04

    Applicant: Hoton How

    Inventor: Hoton How

    CPC classification number: G08B13/2408

    Abstract: Disclosed is a method and an apparatus implying nearly 100% security with a tag system showing low cost and compact volume. Like a conventional tag, the disclosed tag system will respond properly to an interrogation signal. In addition, the disclosed tag system is able to monitor the environment local to a merchandise. Whenever the merchandise package is opened and/or impaired, alarm will be generated on the spot. It is almost impossible to disarm the tag system, unless a password is attained. The disclosed tag system shows a high sensitivity, and it does not need an electronic searching machine, or an interrogation gate, to operate. When combined with an electromagnetic transmitter, a smart tag system results, allowing merchandise to be traced on the computer screen, capable of performing discriminative tasks according to the imposed regulation rules on the merchandise IDs.

    Abstract translation: 公开了一种方法和装置,其意味着具有低成本和紧凑体积的标签系统几乎100%的安全性。 像常规标签一样,所公开的标签系统将对询问信号作出适当响应。 此外,所公开的标签系统能够监视商品本地的环境。 每当商品包装被打开和/或损坏时,会在现场产生报警。 标签系统的撤防几乎是不可能的,除非获得密码。 所公开的标签系统显示出高灵敏度,并且不需要电子搜索机或询问门来操作。 当与电磁发射机结合使用时,会产生智能标签系统,从而允许在计算机屏幕上跟踪商品,从而能够根据对商品ID的强制性规则进行区分性任务。

    Method and apparatus for generating and detecting acoustic signals
    9.
    发明授权
    Method and apparatus for generating and detecting acoustic signals 失效
    用于产生和检测声信号的方法和装置

    公开(公告)号:US5854589A

    公开(公告)日:1998-12-29

    申请号:US956241

    申请日:1997-10-22

    CPC classification number: G08B13/2408 G08B13/2417 G08B13/2437 G08B13/2442

    Abstract: A magnetic/acoustic transducer is disclosed. The transducer can be used in security/smart tag applications. The transducer includes a sensor tag made of magnetic metallic glass having a relatively high magnetostriction and a relatively low coercivity. Driving signals are provided by an rf dipole loop antenna. The tag responds to the rf signals and converts the exciting magnetic field into acoustic signals via magnetoelastic coupling. That is, the tag is forced to vibrate in unison with the incident electromagnetic signals generating longitudinal acoustic waves along a length of the tag. This results in radiation of ultrasound waves in air which can then be detected and characterized using an ultrasound microphone or a piezoelectric sensor. The tag is provided having a length equal to one half or one quarter long of an acoustic wavelength so that an acoustic resonance condition is established to maximize the generation of ultrasound waves in air. The measured ultrasound signal is locked in phase with the excitation or reference signal for sensitive long-range detection. The tag can operate in a magnetized or a demagnetized state to stimulate binary signals for security-tag applications. Tags of different length and/or geometry can be deployed in combination so that the tag transducer produces unique and distinguishable frequency spectrums to be used as smart tags.

    Abstract translation: 公开了一种磁/音换能器。 传感器可用于安全/智能标签应用。 换能器包括由磁性金属玻璃制成的传感器标签,其具有较高的磁致伸缩和较低的矫顽力。 驱动信号由rf偶极环形天线提供。 标签响应rf信号,并通过磁弹性耦合将激发磁场转换为声信号。 也就是说,标签被迫与沿着标签的长度产生纵向声波的入射电磁信号一致地振动。 这导致在空气中的超声波的辐射,然后可以使用超声麦克风或压电传感器来检测和表征。 提供了具有等于声波长的一半或四分之一长度的长度的标签,使得建立声共振条件以使空气中的超声波的产生最大化。 测量的超声信号与激励或参考信号锁定在一起,用于灵敏的远程检测。 标签可以以磁化或去磁状态工作,以刺激二进制信号进行安全标签应用。 可以组合部署不同长度和/或几何的标签,使得标签传感器产生用作智能标签的唯一且可区分的频谱。

    Method and apparatus of obtaining phase shift using nonreciprocal resonator
    10.
    发明授权
    Method and apparatus of obtaining phase shift using nonreciprocal resonator 失效
    使用非互易谐振器获得相移的方法和装置

    公开(公告)号:US06483393B1

    公开(公告)日:2002-11-19

    申请号:US09934938

    申请日:2001-08-23

    Applicant: Hoton How

    Inventor: Hoton How

    CPC classification number: H01P1/19

    Abstract: Disclosed is a method and two devices for obtaining phase shifts by using a non-reciprocal resonator supporting single-mode operation. As such, wave propagation in the resonator is unambiguous in phase, allowing the phase to be coupled in or out at different positions. This results in novel phase shifter devices of two kinds: One kind of the devices suggests to change the coupling positions by using switches, and the other kind suggests to use a movable port to be driven by a step motor, for example. In this invention the phase-shift function performed by a non-reciprocal resonator invokes no use of a transmission line, none for the adjustment in its electronic properties, including permittivity and permeability. The operation of the disclosed phase shifter devices is uniform, being independent of the phase-shift angles, exhibiting low insertion loss and low return loss. Depending on the purpose of applications, versatile phase shifter devices can thus be fabricated, showing the following advantages, economy, reduced size, fast response, high isolation, minimum internal reflection, and compatibility with the current semiconductor fabrication techniques. This invention favors the fabrication of large phased array systems, where available space, cost, and power dissipation can be of primary concerns.

    Abstract translation: 公开了一种通过使用支持单模操作的非互易谐振器来获得相移的方法和两个装置。 因此,谐振器中的波传播在同相中是明确的,允许相位在不同位置耦合进出。 这导致了两种新颖的移相器件:一种器件建议通过使用开关来改变耦合位置,另一种则建议使用例如由步进电机驱动的可移动端口。 在本发明中,不可逆谐振器执行的相移功能不使用传输线,而不考虑其电子特性的调整,包括介电常数和磁导率。 所公开的移相器装置的操作是均匀的,与相移角无关,具有低插入损耗和低回波损耗。 根据应用的目的,可以制造通用移相器器件,显示出以下优点,经济性,减小的尺寸,快速响应,高隔离度,最小内部反射以及与当前半导体制造技术的兼容性。 本发明有利于制造大型相控阵列系统,其中可用的空间,成本和功耗可能是主要考虑的问题。

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