Stray-field sensor circuit and method
    1.
    发明授权
    Stray-field sensor circuit and method 有权
    杂散场传感器电路及方法

    公开(公告)号:US08669761B2

    公开(公告)日:2014-03-11

    申请号:US12969033

    申请日:2010-12-15

    IPC分类号: G01R33/12 G01N27/72

    CPC分类号: G01R33/0035 G01R33/0017

    摘要: A sensor circuit is configured and operated in the presence of interference. In connection with various example embodiments, a stray magnetic field is sensed with current sensors that also respectively sense current-induced magnetic fields generated by current flowing in opposing directions through different portions of a conductor. The current-induced magnetic fields and the stray magnetic field are coplanar, and the current sensors are arranged such that a portion of the output from each current sensor corresponding to the stray magnetic field is canceled when the sensor outputs are combined.

    摘要翻译: 传感器电路在有干扰的情况下被配置和操作。 结合各种示例实施例,用电流传感器感测杂散磁场,电流传感器还分别感测通过导体的不同部分沿相反方向流动的电流产生的电流感应磁场。 电流感应磁场和杂散磁场是共面的,并且电流传感器被布置成使得当传感器输出组合时,来自每个电流传感器的对应于杂散磁场的输出的一部分被消除。

    DLL for period jitter measurement
    2.
    发明授权
    DLL for period jitter measurement 有权
    DLL用于周期抖动测量

    公开(公告)号:US08203368B2

    公开(公告)日:2012-06-19

    申请号:US12995153

    申请日:2009-05-27

    IPC分类号: H03L7/06

    CPC分类号: G01R31/31709

    摘要: A sensor (400) for sensing jitter in a clock signal has a DLL (402, 310, 312) for locking a clock signal and a delayed version of the clock signal. The sensor comprises a delay line (402) having a first number of cascaded controllable delay segments. The DLL uses a second number of the cascaded delay segments for generating a delay of an average clock period of the clock signal. The second number is smaller than the first number. The sensor also has a comparator (408) for supplying a sensor output signal representative of a comparison of the clock signal and a further delayed version of the clock signal. The further delayed version of the clock signal is obtained from an output of a specific one of the delay segments located in the delay line after the second number of cascaded delay segments.

    摘要翻译: 用于感测时钟信号中的抖动的传感器(400)具有用于锁定时钟信号和时钟信号的延迟版本的DLL(402,310,312)。 传感器包括具有第一数量级联的可控延迟段的延迟线(402)。 DLL使用第二数量的级联延迟段来产生时钟信号的平均时钟周期的延迟。 第二个数字小于第一个数字。 传感器还具有比较器(408),用于提供表示时钟信号和时钟信号的进一步延迟版本的比较的传感器输出信号。 时钟信号的进一步延迟版本是从第二级联延迟段之后的位于延迟线中的特定延迟段的输出获得的。

    SIMPLE AND STABLE REFERENCE FOR IR-DROP AND SUPPLY NOISE MEASUREMENTS
    3.
    发明申请
    SIMPLE AND STABLE REFERENCE FOR IR-DROP AND SUPPLY NOISE MEASUREMENTS 有权
    用于IR-DROP和供应噪声测量的简单和稳定的参考

    公开(公告)号:US20110246110A1

    公开(公告)日:2011-10-06

    申请号:US13132550

    申请日:2009-11-18

    IPC分类号: G01R19/00 G01R1/28

    摘要: Apparatus and method for IR-drop and supply noise measurements electronic circuits. A first voltage at a point of interest in the circuit is sampled and stored during a quiescent mode of the circuit the voltage is to be measured in. Subsequently, the circuit is brought in an operating mode and a second voltage is sampled and held at the same point of interest. The first and the second voltage are compared and a corresponding voltage signal is passed to a system output.

    摘要翻译: 用于红外降噪和噪声测量的电子电路的装置和方法。 电路中的感兴趣点处的第一电压被采样并在电路的静态模式下被存储。随后,电路进入操作模式,并且将第二电压采样并保持在 同样的兴趣点。 比较第一和第二电压,并将相应的电压信号传递到系统输出。

    Method of manufacturing a magnetic head unit
    4.
    发明授权
    Method of manufacturing a magnetic head unit 失效
    制造磁头单元的方法

    公开(公告)号:US5832591A

    公开(公告)日:1998-11-10

    申请号:US378237

    申请日:1995-01-25

    摘要: Method in which a magnetic head unit is manufactured from a magnetic head and a support. The magnetic head is manufactured by providing a thin-film magnetic head structure with a ground conductor on an electrically conducting substrate. Before the magnetic head is secured to the support, an electrically insulating layer present on an outer side of the substrate is removed, whereafter an electrically conducting contact layer (39) is formed on the surface obtained. By securing the magnetic head to the support, the contact layer will be in contact with parts (43a, 43b) of the support for the purpose of grounding the support.

    摘要翻译: 磁头单元由磁头和支架制造的方法。 通过在导电基板上提供具有接地导体的薄膜磁头结构来制造磁头。 在将磁头固定到支撑件之前,去除存在于基板外侧的电绝缘层,然后在所获得的表面上形成导电接触层(39)。 通过将磁头固定到支撑件上,接触层将与支撑件的部件(43a,43b)接触,以便使支架接地。

    Vertical recording head with thin film pole on non-magnetic block
    6.
    发明授权
    Vertical recording head with thin film pole on non-magnetic block 失效
    垂直记录头与非磁性块上的薄膜极

    公开(公告)号:US4939609A

    公开(公告)日:1990-07-03

    申请号:US854209

    申请日:1986-04-21

    IPC分类号: G11B5/127

    CPC分类号: G11B5/1278

    摘要: Magnetic head for use in vertical recording has a main magnetic pole of a thin film of soft magnetic material enclosed between two protective blocks together constituting the body of the magnetic head. One protective block includes a magnetic part and a non-magnetic part, the latter extending from the boundary surface of the two parts up to the contact surface between the main pole and a magnetic recording medium. A channel provided at the boundary surface in the magnetic part of the protective block causes a part constituting an auxiliary magnetic pole and adjoining the main magnetic pole to be separated from a part constituting the return path for the magnetic flux from the main pole, a winding embracing the main pole and the auxiliary pole being wound through the channel. The other protective block consists entirely of a non-magnetic material and has a polished surface facing the one protective block, while the main pole is provided on the polished surface.

    摘要翻译: 用于垂直记录的磁头具有一个软磁材料薄膜的主磁极,它包围在构成磁头主体的两个保护块之间。 一个保护块包括磁性部分和非磁性部分,后者从两个部分的边界面延伸到主极和磁记录介质之间的接触表面。 设置在保护块的磁性部分中的边界面处的通道使构成辅助磁极的部分与主磁极相邻,与构成用于来自主极的磁通的返回路径的部分分离,绕组 拥抱主杆和辅助杆通过通道缠绕。 其他保护块完全由非磁性材料组成,并且具有面向一个保护块的抛光表面,而主极设置在抛光表面上。

    CURRENT SENSOR AND CURRENT SENSING METHOD
    7.
    发明申请
    CURRENT SENSOR AND CURRENT SENSING METHOD 有权
    电流传感器和电流传感方法

    公开(公告)号:US20110193546A1

    公开(公告)日:2011-08-11

    申请号:US13122826

    申请日:2009-10-09

    申请人: Victor Zieren

    发明人: Victor Zieren

    IPC分类号: G01R19/00

    CPC分类号: G01R15/20

    摘要: A current sensor, comprises an input conductor (IN) which is supplied with the current to be sensed and an output conductor (OUT) from which the current to be sensed is output. A conductor path is provided between the input conductor and the output conductor, wherein the path is provided on a first, movable element (1) and a second, fixed element (2). The path defines a pair of adjacent path portions (3,5; 3;4), one of the path portions (4;5) on the fixed element and the other (3) on one side of the movable element. An arrangement detects movement of the movable element to determine the current flowing. This arrangement uses a conductor path which can be part of the circuit being tested, and thereby does not require any additional components, other than the movement detector.

    摘要翻译: 电流传感器包括输入导体(IN),输入导体(IN)被提供有待检测的电流和输出导体(OUT),输出电流被输出。 导体路径设置在输入导体和输出导体之间,其中路径设置在第一可移动元件(1)和第二固定元件(2)上。 该路径限定一对相邻的路径部分(3,5; 3; 4),固定元件上的路径部分(4; 5)中的一个和可移动元件的一侧上的另一个(3)。 一种装置检测可移动元件的运动以确定电流流动。 这种布置使用可以作为被测电路的一部分的导体路径,从而不需要除运动检测器之外的任何附加部件。