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1. 发明申请

WO2020185268A1 MOTOR CONTROLLER WITH POWER FEEDBACK LOOP 审中-公开
公开(公告)号：WO2020185268A1
公开(公告)日：2020-09-17
申请号：PCT/US2019/063189
申请日：2019-11-26
申请人： ALLEGRO MICROSYSTEMS, LLC
发明人： LU, Yisong
IPC分类号： H02P6/182
摘要： A motor control system includes a motor; a motor and a motor control circuit coupled to the motor to provide power to the motor. The motor control circuit includes a power feedback loop having a power reference circuit to provide a reference power level and a power control circuit configured to provide a constant power level to the motor so that the motor operates with a substantially constant power output. The constant power level is proportional to the reference power level. Thus, the motor also provides substantially constant torque when the motor is at a constant speed.

2. 发明申请

WO2017014970A1 METHODS AND APPARATUS FOR TRIMMING A MAGNETIC FIELD SENSOR 审中-公开
标题翻译：用于调整磁场传感器的方法和装置
公开(公告)号：WO2017014970A1
公开(公告)日：2017-01-26
申请号：PCT/US2016/041697
申请日：2016-07-11
申请人： ALLEGRO MICROSYSTEMS, LLC
发明人： CHAWARE, Virag, V. , LAPOMARDO, Jesse , HAAS, David, J.
IPC分类号： G01R33/00 , G01R33/07
CPC分类号： G01R33/0023 , G01R33/0017 , G01R33/0035 , G01R33/07
摘要： Method and apparatus for trimming a magnetic field sensor having a first magnetic field sensing element. In embodiments, trimming includes the use of a curve for normalized sensitivity of the first magnetic field sensing element derived from a first curve corresponding to current through a coil in a first direction at a first time to produce a field affecting the first magnetic field sensing element versus an external field and a second curve corresponding to current through the coil in a second direction opposite to the first direction at a second time to produce a field affecting the first magnetic field sensing element versus an external field.
摘要翻译：用于修整具有第一磁场感测元件的磁场传感器的方法和装置。在实施例中，修整包括使用第一磁场感测元件的归一化灵敏度的曲线，该第一磁场感测元件在与第一曲线相对应的第一曲线的第一时间沿第一方向产生的电流产生影响第一磁场感测元件的场相对于在第二时间处于与第一方向相反的第二方向上的通过线圈的电流的外部场和第二曲线，以产生影响第一磁场感测元件相对于外部场的场。

3. 发明申请

WO2017007516A1 DUAL MODE III-V SUPERLATTICE AVALANCHE PHOTODIODE 审中-公开
标题翻译：双模III-V超级光亮度光电
公开(公告)号：WO2017007516A1
公开(公告)日：2017-01-12
申请号：PCT/US2016/020360
申请日：2016-03-02
申请人： RAYTHEON COMPANY
发明人： GHOSH, Siddhartha
IPC分类号： H01L31/0304 , H01L31/0352 , H01L31/107
CPC分类号： H01L31/1075 , G06F17/5022 , G06F2217/02 , H01L31/0304 , H01L31/03046 , H01L31/035236 , H01L31/1844 , Y02E10/544
摘要： In one aspect, an avalanche photodiode, includes an absorber, a first superlattice structure directly connected to the absorber and configured to multiply holes and a second superlattice structure directly connected to the first superlattice structure and configured to multiply electrons. The first and second superlattice structures include III-V semiconductor material. The avalanche photodiode is a dual mode device configured to operate in either a linear mode or a Geiger mode. In another aspect, a method includes fabricating the avalanche diode.
摘要翻译：一方面，雪崩光电二极管包括吸收体，第一超晶格结构，其直接连接到吸收器并且被配置为将空穴和与第一超晶格结构直接连接的第二超晶格结构相乘并且被配置为乘以电子。第一和第二超晶格结构包括III-V半导体材料。雪崩光电二极管是配置为以线性模式或盖革模式操作的双模式设备。另一方面，一种方法包括制造雪崩二极管。

4. 发明申请

WO2013095769A1 CIRCUITRY TO DRIVE PARALLEL LOADS SEQUENTIALLY 审中-公开
标题翻译：电路按顺序驱动并联负载
公开(公告)号：WO2013095769A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/061779
申请日：2012-10-25
申请人： ALLEGRO MICROSYSTEMS, LLC , LEE, Nai-Chi , SZCZESZYNSKI, Gregory , MANGTANI, Vijay
发明人： LEE, Nai-Chi , SZCZESZYNSKI, Gregory , MANGTANI, Vijay
IPC分类号： H02M3/335 , H05B33/08
CPC分类号： H05B33/0851 , H02M3/158 , H02M2001/0009 , H05B33/0818 , H05B33/0827 , Y02B20/346 , Y10T307/25
摘要： In one aspect, a circuit includes a plurality of comparators (50a, 50b, 50c). Each comparator is configured to receive a first input from a corresponding load of a plurality of loads (52a, 52b, 52c) and to receive a second input as a regulation voltage (Vreg). The circuit also Includes an amplifier (56) configured to receive signals provided by the plurality of comparators, a pulse-width modulation (PWM) circuit configured to receive a control signal from the amplifier and to provide a signal to a primary switch (42) to control voltage provided to the loads and an output switch sequencer (62) coupled to each of the comparators and configured to provide control signals (S1, S2, S3) to control switches (30a, 30b, 30c) coupled to the primary switch (42) enabling one control switch to be active at a time. Each control switch provides a voltage increase to a respective load of the plurality of loads if enabled.
摘要翻译：一方面，电路包括多个比较器（50a，50b，50c）。每个比较器被配置为从多个负载（52a，52b，52c）的对应负载接收第一输入，并且接收作为调节电压（Vreg）的第二输入。电路还包括被配置为接收由多个比较器提供的信号的放大器（56），配置成从放大器接收控制信号并向初级开关（42）提供信号的脉冲宽度调制（PWM）电路，以控制提供给负载的电压以及耦合到每个比较器的输出开关定序器（62），并且被配置为提供控制信号（S1，S2，S3）以控制耦合到主开关的开关（30a，30b，30c） 42）一个控制开关一次有效。如果启用，每个控制开关为多个负载的相应负载提供电压增加。

5. 发明申请

WO2012112872A1 RATELESS AND RATED CODING USING SPINAL CODES 审中-公开
标题翻译：使用脊柱编码的无损和等级编码
公开(公告)号：WO2012112872A1
公开(公告)日：2012-08-23
申请号：PCT/US2012/025612
申请日：2012-02-17
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , PERRY, Jonathan , SHAH, Devavrat , BALAKRISHNAN, Hari
发明人： PERRY, Jonathan , SHAH, Devavrat , BALAKRISHNAN, Hari
IPC分类号： H04L1/00
CPC分类号： H04B1/10 , H04B15/00 , H04L1/0007 , H04L1/004 , H04L1/0042 , H04L1/005 , H04L1/0054 , H04L5/16 , H04L27/34
摘要： In one aspect, a wireless system includes an encoder configured to encode data using a spinal code which uses a function over the message bits to directly produce a sequence of constellation symbols for transmission. The wireless system also includes a decoder configured to decode the spinal code. The function may be at least one of a non-linear function and a hash function.
摘要翻译：一方面，一种无线系统包括：编码器，被配置为使用脊髓代码对数据进行编码，所述脊髓编码使用消息比特的功能来直接产生用于传输的星座符号序列。无线系统还包括被配置为解码脊髓代码的解码器。该函数可以是非线性函数和散列函数中的至少一个。

6. 发明申请

WO2012033589A1 METHOD AND APPARATUS TO IMPROVE REEL FEEDER EFFICIENCY 审中-公开
标题翻译：提高芦苇饲料效率的方法和装置
公开(公告)号：WO2012033589A1
公开(公告)日：2012-03-15
申请号：PCT/US2011/047043
申请日：2011-08-09
申请人： RAYTHEON COMPANY , TAYLOR IV, W., Royce , KOLLER, Ryan, J.
发明人： TAYLOR IV, W., Royce , KOLLER, Ryan, J.
IPC分类号： H05K13/04
CPC分类号： G05G5/04 , H05K13/021 , H05K13/0417 , Y10T29/49826 , Y10T74/206 , Y10T156/1994
摘要： In one aspect, a device includes a first portion having a length substantially the same as a length of a gap of a slot of a free link of a reel feeder. The device is configured to be placed in the gap to limit movement of a take-up arm along the slot. In another aspect, a method includes placing a device in a gap of a slot of a free link of a reel feeder to limit movement of a take-up arm along the slot.
摘要翻译：在一个方面，一种装置包括第一部分，该第一部分具有与卷轴进给器的自由连杆的槽的间隙的长度基本相同的长度。该装置被配置成放置在间隙中以限制卷绕臂沿着狭槽的移动。在另一方面，一种方法包括将设备放置在卷轴进给器的自由链节的槽的间隙中，以限制卷取臂沿着槽的移动。

7. 发明申请

WO2012015688A2 AN INTRUSION DETECTION AND TRACKING SYSTEM 审中-公开
标题翻译：入侵检测和跟踪系统
公开(公告)号：WO2012015688A2
公开(公告)日：2012-02-02
申请号：PCT/US2011/044972
申请日：2011-07-22
申请人： RAYTHEON COMPANY , HABIB, Toni, S. , HABIB, Wassim, S. , LUNG, Teh-Kuang
发明人： HABIB, Toni, S. , HABIB, Wassim, S. , LUNG, Teh-Kuang
IPC分类号： G08B13/24
CPC分类号： G08B13/2491 , G01S5/0289
摘要： In one aspect, a method to detect an object in an area includes forming a wireless network among a plurality of nodes, each of the nodes being configured to generate an electromagnetic field (EMF) in the area and determining changes in the EMF between two nodes based on: a first difference in received signal strength values between a previously determined received signal strength value and a currently determined received signal strength value, a second difference in received signal strength values between the currently determined received signal strength value and an average received signal strength value and a third difference in link quality values between a previously determined link quality value and a currently determined link quality value. The method further comprises detecting the object based on the changes in the EMF.
摘要翻译：在一个方面，检测区域中的对象的方法包括在多个节点之间形成无线网络，每个节点被配置为在该区域中生成电磁场（EMF），并且基于先前确定的接收信号强度值与当前确定的接收信号强度值之间的接收信号强度值的第一差异，确定当前确定的接收信号之间的接收信号强度值的第二差异，确定两个节点之间的EMF的变化强度值和平均接收信号强度值以及先前确定的链路质量值与当前确定的链路质量值之间的链路质量值的第三差异。该方法还包括基于EMF中的变化来检测对象。

8. 发明申请

WO2011162923A1 A WAVEFORM GENERATOR IN A MULTI-CHIP SYSTEM 审中-公开
标题翻译：多芯片系统中的波形发生器
公开(公告)号：WO2011162923A1
公开(公告)日：2011-12-29
申请号：PCT/US2011/038851
申请日：2011-06-02
申请人： RAYTHEON COMPANY , KATZ, David, J. , REID, Stephen, R.
发明人： KATZ, David, J. , REID, Stephen, R.
IPC分类号： H04L7/033 , G06F1/02 , H04L25/14 , H03L7/081
CPC分类号： G06F1/10 , H04L7/0338
摘要： In one aspect, an integrated circuit (IC) system includes a receiver IC configured to receive a first clock signal and includes a feedback circuit configured to provide a feedback signal to a driver IC. The IC system also includes the driver IC configured to receive a second clock signal and includes a waveform generator configured to provide synthesized waveforms from DC to K-band, a serializer/deserializer (SERDES) to receive data from the waveform generator and to provide the signal to the receiver IC and a phase selection circuit to provide a phase selection signal to the first integrated circuit based on the feedback signal. The phase selection signal calibrates the signal from the SERDES and provides phase correction to the SERDES.
摘要翻译：在一个方面，集成电路（IC）系统包括被配置为接收第一时钟信号并包括被配置为向驱动器IC提供反馈信号的反馈电路的接收器IC。 IC系统还包括被配置为接收第二时钟信号的驱动器IC，并且包括被配置为提供从DC到K波段的合成波形的波形发生器，用于从波形发生器接收数据的串行器/解串器（SERDES），并且提供信号到接收器IC和相位选择电路，以基于反馈信号向第一集成电路提供相位选择信号。相位选择信号校准来自SERDES的信号，并向SERDES提供相位校正。

9. 发明申请

WO2010075125A1 FABRICATING A GALLIUM NITRIDE DEVICE WITH A DIAMOND LAYER 审中-公开
标题翻译：制作具有钻石层的氮化钛装置
公开(公告)号：WO2010075125A1
公开(公告)日：2010-07-01
申请号：PCT/US2009/068180
申请日：2009-12-16
申请人： RAYTHEON COMPANY , KORENSTEIN, Ralph , BERNSTEIN, Steven, D. , PEREIRA, Stephen, J.
发明人： KORENSTEIN, Ralph , BERNSTEIN, Steven, D. , PEREIRA, Stephen, J.
IPC分类号： H01L29/778 , H01L29/16 , H01L29/267 , H01L21/335
CPC分类号： H01L29/7786 , H01L21/02389 , H01L21/02527 , H01L21/0262 , H01L29/1602 , H01L29/2003 , H01L29/267 , H01L29/66431 , H01L29/66462
摘要： In one aspect, a method includes fabricating a device. The device includes a gallium nitride (GaN) layer, a diamond layer disposed on the GaN layer and a gate structure disposed in contact with the GaN layer and the diamond layer. In another aspect, a device includes a gallium nitride (GaN) layer, a diamond layer disposed on the GaN layer and a gate structure disposed in contact with the GaN layer and the diamond layer.
摘要翻译：一方面，一种方法包括制造装置。该器件包括氮化镓（GaN）层，设置在GaN层上的金刚石层和与GaN层和金刚石层接触设置的栅极结构。在另一方面，一种器件包括氮化镓（GaN）层，设置在GaN层上的金刚石层和与GaN层和金刚石层接触设置的栅极结构。

10. 发明申请

WO2008118706A1 IDENTIFYING WHETHER A CANDIDATE OBJECT IS FROM AN OBJECT CLASS 审中-公开
标题翻译：识别候选对象来自对象类
公开(公告)号：WO2008118706A1
公开(公告)日：2008-10-02
申请号：PCT/US2008/057423
申请日：2008-03-19
申请人： RAYTHEON COMPANY , KADAMBE, Shubha , SAISAN, Payam
发明人： KADAMBE, Shubha , SAISAN, Payam
IPC分类号： G06K9/48 , G06K9/62 , G01S15/89
CPC分类号： G06K9/48 , G01S15/8902 , G06K9/6247
摘要： In one aspect, a method to identify a candidate object includes receiving an image of the candidate object and projecting the received image onto an image subspace. The image subspace is formed from images of known objects of a class. The method also includes determining whether the candidate object is in the object class based on the received image and the image subspace using a likelihood ratio. The likelihood ratio includes a first probability density indicating a probability an object is in the object class and a second probability density indicating a probability an object is not in the class. The first probability density and the second probability are each a function of a distance of the received image to the image subspace.
摘要翻译：一方面，一种识别候选对象的方法包括接收候选对象的图像并将接收的图像投影到图像子空间上。图像子空间由类的已知对象的图像形成。该方法还包括基于接收到的图像和使用似然比的图像子空间来确定候选对象是否在对象类中。似然比包括指示对象在对象类中的概率的第一概率密度和指示对象不在类中的概率的第二概率密度。第一概率密度和第二概率各自是接收到的图像与图像子空间的距离的函数。

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