公开(公告)号：US09903890B1

公开(公告)日：2018-02-27

申请号：US15430825

申请日：2017-02-13

Applicant: Prismatic Sensors AB

Inventor： Martin Sjolin

IPC: G01R17/00 ,  G01T1/18

CPC classification number: G01R17/00 ,  G01T1/18

Abstract: Disclosed are methods, systems, apparatuses and computer programs for estimating a measure of the gain and offset of a converter that generates, based on digital settings, reference voltages to be used as thresholds by a comparator in a photon-counting detector in an x-ray imaging system. Steps include selecting a first converter as a reference converter and a second converter as a target converter; assigning different digital settings to the reference converter to generate at least two different reference voltages to be used as thresholds by a comparator associated with the reference converter; and obtaining, based on photon count measurements, the number of photons registered in a photon counter associated with a comparator whose reference voltage is generated by the target converter. Based on the number of photons and the at least two digital settings, an estimate of the gain and offset of the target converter relative the reference converter results.

公开(公告)号：US09781785B2

公开(公告)日：2017-10-03

申请号：US14941074

申请日：2015-11-13

Applicant: Magnachip Semiconductor, Ltd.

Inventor： Seung Woo Hong

IPC: H05B33/08 ,  G01R23/00 ,  G01R17/00

CPC classification number: H05B33/0815 ,  G01R17/00 ,  G01R23/005 ,  H05B33/0842

Abstract: A ballast type detecting circuit includes a ballast signal clamping circuit coupled to a ballast, wherein the ballast signal clamping unit is configured to clamp an output of the ballast, and a ballast type detection circuit configured to compare first and second reference clocks and the clamped output of the ballast to determine a type of the ballast, each of the first and second reference clocks having a frequency lower than an output frequency of a first type ballast and higher than an output frequency of a second type ballast. Thus, the ballast type detecting circuit detects a type of electronic ballast and magnetic ballast based on a digital output signal and decreases a number of outside circuit elements through a ballast type detection based on a digital output signal.

公开(公告)号：US09772421B2

公开(公告)日：2017-09-26

申请号：US14406231

申请日：2013-04-15

Applicant: Robert Bosch GmbH

Inventor： Andrej Albrecht ,  Tobias Zibold

IPC: G01R27/26 ,  G01V3/02 ,  H03K17/00 ,  G01R17/00 ,  H03K5/02

CPC classification number: G01V3/02 ,  G01R17/00 ,  H03K5/02 ,  H03K17/00

Abstract: A circuit having a first, second, and third capacitor. Capacitor plates of the capacitors are connected to a first circuit node. The circuit supplies a first time-dependent voltage to the first capacitor, a second time-dependent voltage to the second capacitor, and a third time-dependent voltage to the third capacitor. The first and second voltages are clocked in antiphase. The second and third voltages are clocked in phase. The circuit has an amplifier, a synchronous demodulator, and a comparator. Inputs of the amplifier are connected to the first circuit node and ground. The synchronous demodulator alternately applies an output signal of the amplifier to inputs of the comparator, synchronously with the clock frequency of the first voltage. The circuit generates a control value dependent on an output of the comparator. The circuit changes amplitudes of the first and third voltage and/or the second voltage dependent on the control value.

公开(公告)号：US09607172B2

公开(公告)日：2017-03-28

申请号：US14583921

申请日：2014-12-29

Applicant: International Business Machines Corporation

Inventor： Matthew S. Doyle ,  Joseph Kuczynski ,  Kevin A. Splittstoesser ,  Timothy J. Tofil

IPC: G06F21/87 ,  G06F21/62 ,  G01N27/04 ,  G01R17/00 ,  G06F21/60 ,  H05K3/30 ,  G01R27/02

CPC classification number: G06F21/6245 ,  G01N27/045 ,  G01R17/00 ,  G01R27/02 ,  G06F21/60 ,  G06F21/87 ,  H05K3/30

Abstract: An apparatus for providing security for an integrated circuit (IC) chip is disclosed. The apparatus may include the IC chip, attached to a surface of a printed circuit board (PCB). The PCB may include a first, electrically insulative, conformal coating layer attached to the PCB surface and to exposed IC chip surfaces. The PCB may also include a Wheatstone bridge circuit to indicate changes to a second, X-ray opaque, optically opaque and electrically resistive, conformal coating layer. The circuit may include four resistors, formed from second conformal coating layer regions, four sets of electrically conductive pads on the PCB, each set electrically connected to a resistor of the four resistors. The circuit may also include a voltage source, connected to two conductive pads and a monitoring device, connected to another two conductive pads and configured to detect a change of resistance of the Wheatstone bridge.

公开(公告)号：US20170067942A1

公开(公告)日：2017-03-09

申请号：US14959025

申请日：2015-12-04

Applicant: SK hynix Inc.

Inventor： Yeon Uk KIM

IPC: G01R17/00 ,  G01R21/00

CPC classification number: G01R17/00 ,  G01R19/16552 ,  G01R21/00 ,  G01R31/2856 ,  G11C5/143 ,  G11C29/021 ,  G11C29/028

Abstract: A power-supply voltage sensing device is disclosed, which relates to a technology for detecting a level of an external power-supply voltage during a test mode. The power-supply voltage sensing device includes a reference voltage trimming unit configured to trim a reference voltage in response to a code signal, a power-supply voltage detection unit configured to select one of a power-supply voltage and an external power-supply voltage in response to a test signal, compare the external power-supply voltage with the reference voltage, and output a detection signal according to the result of comparison, and a reference voltage control unit configured to output the code signal in response to the detection signal.

Abstract translation: 公开了一种电源电压检测装置，其涉及在测试模式期间检测外部电源电压的电平的技术。 电源电压检测装置包括：基准电压修整单元，被配置为响应于代码信号修整参考电压;电源电压检测单元，被配置为选择电源电压和外部电源电压之一 响应于测试信号，将外部电源电压与参考电压进行比较，并根据比较结果输出检测信号;以及参考电压控制单元，配置为响应于检测信号输出代码信号。

公开(公告)号：US09423427B2

公开(公告)日：2016-08-23

申请号：US14203145

申请日：2014-03-10

Applicant: Parade Technologies, Ltd.

Inventor： Andriy Maharyta

IPC: G01R27/26 ,  G06F3/041 ,  G01R17/00 ,  G01D5/24 ,  H03K17/96 ,  G06F3/01 ,  G01D5/241 ,  G06K9/00

CPC classification number: G01R17/00 ,  G01D5/24 ,  G01D5/241 ,  G01D5/2412 ,  G01D5/2417 ,  G01R27/2605 ,  G06F3/016 ,  G06F3/0414 ,  G06K9/0002 ,  H03K17/962

Abstract: In an example embodiment, an apparatus includes a sensing device. The sensing device includes circuitry configured to sense self-capacitance and circuitry configured to sense mutual-capacitance, each configured to detect capacitance values corresponding to whether an object is proximate to a touch screen. The sensing device is configured to measure a first capacitance value using the self-capacitance circuitry during self-capacitance sensing operations and to measure a second capacitance value using the mutual-capacitance circuitry during mutual-capacitance sensing operations.

Abstract translation: 在示例性实施例中，一种装置包括感测装置。 感测装置包括被配置为感测自身电容的电路和被配置为感测互电容的电路，每个电容被配置为检测对应于物体是否接近触摸屏的电容值。 感测装置被配置为在自电容感测操作期间使用自电容电路测量第一电容值，并且在互电容感测操作期间使用互电容电路来测量第二电容值。

公开(公告)号：US20160154029A1

公开(公告)日：2016-06-02

申请号：US14895868

申请日：2014-05-30

Applicant: ANALOG DEVICES GLOBAL

Inventor： Seyed Amir Ali Danesh ,  William Michael James Holland ,  John Stuart ,  Jonathan Ephraim David Hurwitz

IPC: G01R17/00

CPC classification number: G01R17/00 ,  G01R1/203 ,  G01R15/144 ,  G01R15/146 ,  G01R17/02 ,  G01R19/0084 ,  G01R19/0092 ,  G01R19/16542 ,  G01R19/2513 ,  G01R27/08 ,  G01R27/14

Abstract: The present invention relates to electrical measurement apparatus (10). The electrical measurement apparatus (10) comprises a measurement arrangement (20,24) configured to be disposed in relation to an electrical circuit (12,14,16,18) which bears an electrical signal, the measurement arrangement (20,24) being operative when so disposed to measure the electrical signal. The electrical measurement apparatus (10) further comprises a signal source (22) operative to apply a reference input signal to the measurement arrangement (20,24) whereby an output signal from the measurement arrangement comprises an electrical output signal corresponding to the electrical signal and a reference output signal corresponding to the reference input signal, the reference input signal having a substantially piecewise constant form which is repeated over each of plural cycles. The electrical measurement apparatus (10) yet further comprises processing apparatus (26) which is operative: to determine at least one cumulative representation, determination of the cumulative representation comprising summing plural received sections of the output signal, each of the plural received sections corresponding to at least a part and to a same part of the cycle of the reference input signal; and to determine at least one of: a transfer function for the measurement arrangement; a change in a transfer function for the measurement arrangement; and the electrical signal, in dependence on the at least one cumulative representation and the reference input signal.

Abstract translation: 本发明涉及电测量装置（10）。 电测量装置（10）包括被配置为相对于承载电信号的电路（12,14,16,18）设置的测量装置（20,24），测量装置（20,24）是 当这样布置以测量电信号时操作。 电测量装置（10）还包括信号源（22），其操作以将参考输入信号施加到测量装置（20,24），由此来自测量装置的输出信号包括对应于电信号的电输出信号，以及 与参考输入信号相对应的参考输出信号，参考输入信号具有在多个周期中重复的大致分段常数形式。 电测量装置（10）还包括可操作的处理装置（26）：确定至少一个累积表示，累积表示的确定包括对输出信号的多个接收部分求和，多个接收部分中的每一个对应于 参考输入信号的周期的至少一部分和相同部分; 并且确定以下至少一个：所述测量装置的传递函数; 测量装置的传递函数的变化; 和电信号，这取决于至少一个累积表示和参考输入信号。

公开(公告)号：US09329147B1

公开(公告)日：2016-05-03

申请号：US14578737

申请日：2014-12-22

Applicant: International Business Machines Corporation

Inventor： Matthew S. Doyle ,  Joseph Kuczynski ,  Kevin A. Splittstoesser ,  Timothy J. Tofil

IPC: G06F21/70 ,  G01N27/04 ,  G06F21/79

CPC classification number: G06F21/6245 ,  G01N27/045 ,  G01R17/00 ,  G01R27/02 ,  G06F21/60 ,  G06F21/87 ,  H05K3/30

Abstract: An apparatus for providing security for an integrated circuit (IC) chip is disclosed. The apparatus may include the IC chip, attached to a surface of a printed circuit board (PCB). The PCB may include a first, electrically insulative, conformal coating layer attached to the PCB surface and to exposed IC chip surfaces. The PCB may also include a Wheatstone bridge circuit to indicate changes to a second, X-ray opaque, optically opaque and electrically resistive, conformal coating layer. The circuit may include four resistors, formed from second conformal coating layer regions, four sets of electrically conductive pads on the PCB, each set electrically connected to a resistor of the four resistors. The circuit may also include a voltage source, connected to two conductive pads and a monitoring device, connected to another two conductive pads and configured to detect a change of resistance of the Wheatstone bridge.

Abstract translation: 公开了一种用于为集成电路（IC）芯片提供安全性的装置。 该装置可以包括附接到印刷电路板（PCB）的表面的IC芯片。 PCB可以包括附接到PCB表面和暴露的IC芯片表面的第一，电绝缘的保形涂层。 PCB还可以包括惠斯通电桥电路，以指示对第二X射线不透明，光学不透明和电阻的保形涂层的变化。 电路可以包括由第二共形涂层区域形成的四个电阻器，PCB上的四组导电焊盘，每组电连接到四个电阻器的电阻器。 电路还可以包括连接到两个导电焊盘的电压源和监控装置，其连接到另外两个导电焊盘并被配置成检测惠斯通电桥的电阻变化。

公开(公告)号：US20160084896A1

公开(公告)日：2016-03-24

申请号：US14494145

申请日：2014-09-23

Applicant: The Boeing Company

Inventor： Douglas R. Jungwirth ,  Anton M. Bouckaert

IPC: G01R29/027 ,  G01R19/00 ,  G01N21/88 ,  G01R17/00

CPC classification number: G01R29/027 ,  G01J1/42 ,  G01J2001/4238 ,  G01N21/88 ,  G01N2201/088 ,  G01R17/00 ,  G01R19/0046

Abstract: A method for monitoring degradation of a flashlamp including triggering the flashlamp to produce a light pulse, monitoring at least one parameter as a function of time to obtain a pulse waveform of the light pulse, comparing the pulse waveform to at least one reference pulse waveform to determine a difference therebetween, and flagging an end-of-lamp-life condition when the difference exceeds a predetermined threshold.

Abstract translation: 一种用于监视闪光灯的劣化的方法，包括触发闪光灯以产生光脉冲，监测作为时间的函数的至少一个参数以获得光脉冲的脉搏波形，将脉搏波形与至少一个参考脉搏波形进行比较， 确定它们之间的差异，并且当差值超过预定阈值时标记灯灭寿命状态。

公开(公告)号：US09261540B2

公开(公告)日：2016-02-16

申请号：US14153334

申请日：2014-01-13

Applicant: Emerson Electric Co.

Inventor： Lihui Tu ,  Liang Cao ,  Cuikun Chu

IPC: G01R27/26 ,  G01R19/32 ,  G01R19/25

CPC classification number: G01R31/362 ,  G01K13/00 ,  G01R17/00 ,  G01R19/2503

Abstract: Disclosed are exemplary embodiments of devices for measuring voltage of a power supply. Also disclosed are exemplary embodiments of detection devices and temperature controllers comprising such devices for measuring voltage of a power supply. In exemplary embodiments, a device for measuring the voltage of a power supply generally includes a resistor, a capacitor, and a control unit. One end of the capacitor is connected with the resistor, while the other end of the capacitor is connected to ground. The control unit is connected with the power supply. The control unit includes a comparator connected with the capacitor, a reference power supply connected with the comparator, a timer, and a computing unit.

Abstract translation: 公开了用于测量电源的电压的装置的示例性实施例。 还公开了包括用于测量电源的电压的这种装置的检测装置和温度控制器的示例性实施例。 在示例性实施例中，用于测量电源电压的装置通常包括电阻器，电容器和控制单元。 电容器的一端与电阻器连接，而电容器的另一端连接到地。 控制单元与电源连接。 控制单元包括与电容器连接的比较器，与比较器连接的参考电源，定时器和计算单元。