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    • 1. 发明授权
    • Method for image reproduction and recording with the methods for positioning, processing and controlling
    • 用于定位,处理和控制的方法进行图像再现和记录的方法
    • US07213985B1
    • 2007-05-08
    • US10638589
    • 2003-08-09
    • Laurence Lujun Chen
    • Laurence Lujun Chen
    • B41J3/28
    • B41J3/407B41J11/001
    • New method for Image reproduction and recording is based on mechanical-guiding-apparatus-free operating methods, with flexible operations (hand, robot, vehicle), with the means for positioning, processing and controlling, and having exclusive plurality of uses. The system for image reproduction and recording based on this method includes these common apparatuses: head carrier, sprayer/reader or sprayer/reader array, and computer. Additional apparatuses used in wave-based positioning methods or relative-motion-based positioning methods, include operation-unit (OU) and communication-units (CU's), or operation-module (OM) and motion-detectors (MD), or respectively. The MD and OM provide the information of positioning for computer to determines the relative position and direction of the head array on head carrier. The CU's radiate and receive signal needed for determining distance information. The OU processes and converts the received signal into distance-related data and pass to computer. The computer determines the coordinates of each head in the head array from these data, and sends it back to OU or OM. Then the OU or OM sends the color data and spraying commands to head array, and provides power for head, or sends reading commands to head array for reading color data.
    • 用于图像再现和记录的新方法是基于机械无导向装置的操作方法,具有灵活的操作(手,机器人,车辆),具有用于定位,处理和控制的手段,并且具有多种用途。 基于该方法的图像再现和记录系统包括这些常用装置:头架,喷雾器/读取器或喷雾器/读取器阵列和计算机。 用于基于波的定位方法或基于相对运动的定位方法中的附加装置包括操作单元(OU)和通信单元(CU)或操作模块(OM)和运动检测器(MD) 。 MD和OM提供计算机定位信息,以确定头架上头阵列的相对位置和方向。 CU确定距离信息所需的辐射和接收信号。 OU处理并将接收的信号转换为距离相关数据并传递到计算机。 计算机从这些数据确定头阵列中每个头的坐标,并将其发回OU或OM。 然后,OU或OM向头阵列发送颜色数据和喷涂命令,并为头部提供电源,或者向头阵列发送读取命令以读取颜色数据。
    • 3. 发明授权
    • Process of measuring slide-reading of abutted-junction read heads
    • 测量接合读头的滑动读数的过程
    • US06504362B2
    • 2003-01-07
    • US09902988
    • 2001-07-11
    • Douglas SaundersJuan Fernandez-de-CastroErli ChenLujun Chen
    • Douglas SaundersJuan Fernandez-de-CastroErli ChenLujun Chen
    • G01R3312
    • B82Y25/00B82Y10/00G11B5/455G11B2005/0013G11B2005/0016G11B2005/3996
    • Side-reading of an abutted-junction magnetic transducer is measured by constructing at least one microtrack having a transition density. The transducer is moved relative to the microtrack to identify a plurality of positions of the transducer relative to the microtrack where the transducer provides a predetermined response. The side-reading distance of the transducer is identified from the plurality of positions. In one embodiment, a plurality of microtracks are constructed during different iterations, each having a different transition density, and the positions of the transducer are identified during each iteration relative to the respective microtrack. In another embodiment, the selected transition density has a fundamental frequency, and the position of the transducer is identified relative to the microtrack where the transducer provides the predetermined response at each of a plurality of harmonic frequencies of the fundamental frequency.
    • 通过构造至少一个具有转移密度的微轨迹来测量邻接结磁换能器的侧读。 传感器相对于微轨迹移动以识别换能器相对于微轨道的多个位置,其中换能器提供预定响应。 从多个位置识别换能器的侧读距离。 在一个实施例中,在不同迭代期间构造多个微轨迹,每个迭代具有不同的转移密度,并且在每次迭代期间相对于相应微轨迹识别换能器的位置。 在另一个实施例中,所选择的转移密度具有基频,并且相对于微轨迹识别换能器的位置,其中换能器在基频的多个谐波频率的每一个处提供预定的响应。
    • 8. 发明申请
    • Method for improving the stabillity, write-ability and manufacturability of magneto-resistive random access memory
    • 提高磁阻随机存取存储器的稳定性,写入能力和可制造性的方法
    • US20150063011A1
    • 2015-03-05
    • US13987786
    • 2013-09-03
    • Laurence Lujun ChenDi (Laura) ChenMichael Meng Chen
    • Laurence Lujun ChenDi (Laura) ChenMichael Meng Chen
    • G11C11/16
    • G11C11/1675G11C11/1653G11C11/1673G11C11/1695G11C11/1697G11C2213/71
    • This invention provides the method to overcome 4 backwards which limit the manufacturability or production yield rate of Magneto-resistive random access memory (MRAM). The key points of this invention are: (1) providing method to improve the manufacturability through reducing bias variation, by using a compensation module to correct the bias point of extreme cells; (2) providing method to improve the manufacturability through removing outlier cells (called bad cells), by using “writing jump-over” and “reading exclusion” to exclude bad-cells; (3) providing method to reduce the bias point, amplitude and asymmetry variation, using shared fixed-magnetic-reference-layer and proper shape anisotropy; (4) providing method to improve the write-ability, using flipping-assistant-field to speed up STT flipping process by large current, and using heating resistance and heating cells by the same current (including global heating, row heating, column heating, or local cell heating, i.e. heating with conventional thermal nature or heating with thermagnonic spin-transfer torque).
    • 本发明提供了克服4次向后的方法,其限制了磁阻随机存取存储器(MRAM)的可制造性或生产成品率。 本发明的要点是:(1)通过使用补偿模块来校正极细胞的偏心点,提供减少偏差变化来提高可制造性的方法; (2)通过使用“写入跳转”和“读取排除”来排除坏细胞来提供通过去除异常细胞(称为坏细胞)来提高可制造性的方法; (3)提供使用共享固定磁参考层和适当形状各向异性来减少偏置点,振幅和不对称变化的方法; (4)提供提高写入能力的方法,使用翻转助理字段,通过大电流加速STT翻转处理,并使用相同电流(包括全局加热,行加热,列加热, 或局部电池加热,即用常规热性质加热或用热敏自旋转移转矩加热)。