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    Contactless data communication using in-plane magnetic fields, and related systems and methods
    2.
    发明授权
    Contactless data communication using in-plane magnetic fields, and related systems and methods 有权
    使用平面内磁场的非接触式数据通信，以及相关的系统和方法

    公开(公告)号：US09495899B2

    公开(公告)日：2016-11-15

    申请号：US14036526

    申请日：2013-09-25

    Applicant: QUALCOMM Incorporated

    Inventor： Wenqing Wu ,  Senthil Kumar Govindaswamy ,  Raghu Sagar Madala ,  Peiyuan Wang ,  Kendrick Hoy Leong Yuen ,  David Joseph Winston Hansquine

    IPC: H04B5/00 ,  H01L43/00 ,  G09G3/20 ,  H01L43/08 ,  H01L27/22

    CPC classification number: H04B5/0031 ,  G09G3/2096 ,  G09G2370/16 ,  H01L27/22 ,  H01L43/08 ,  H04B5/0087 ,  H04W4/80

    Abstract: Embodiments described herein are related to contactless data communication. Related systems and methods for contactless data communication are disclosed herein. For example, a magnetic field-based contactless transmitter is disclosed that includes a substrate, a pair of dipole coils disposed on the substrate, and a drive circuit electrically coupled to the pair of dipole coils. To transmit data to a magnetic tunnel junction (MTJ) receiver disposed on a second substrate, the drive circuit is configured to drive the pair of dipole coils so as to generate a magnetic field in-plane to the MTJ receiver. Data can be transmitted from the magnetic field-based contactless transmitter to the MTJ receiver using the magnetic field.

    Abstract translation: 本文描述的实施例涉及非接触式数据通信。 本文公开了用于非接触式数据通信的相关系统和方法。 例如，公开了一种基于磁场的非接触式发射器，其包括衬底，设置在衬底上的一对偶极线圈，以及与该对偶极线圈电耦合的驱动电路。 为了将数据发送到设置在第二基板上的磁性隧道结（MTJ）接收器，驱动电路被配置为驱动一对偶极子线圈，以便在MTJ接收器的平面内产生磁场。 可以使用磁场将数据从基于磁场的非接触式发射机传输到MTJ接收机。

    Message-based key generation using physical unclonable function (PUF)
    3.
    发明授权
    Message-based key generation using physical unclonable function (PUF) 有权

    公开(公告)号：US10547460B2

    公开(公告)日：2020-01-28

    申请号：US15356112

    申请日：2016-11-18

    Applicant: QUALCOMM Incorporated

    Inventor： Peiyuan Wang ,  Chando Park ,  Jimmy Jianan Kan ,  Seung Hyuk Kang

    IPC: H04L9/32 ,  G06F21/73 ,  H04L9/08

    Abstract: Exemplary features pertain to secure communications using Physical Unclonable Function (PUF) devices. Segments of a message to be encrypted are sequentially applied to a PUF device as a series of challenges to obtain a series of responses for generating a sequence of encryption keys, whereby a previous segment of the message is used to obtain a key for encrypting a subsequent segment of the message. The encrypted message is sent to a separate (receiving) device that employs a logical copy of the PUF device for decrypting the message. The logical copy of the PUF may be a lookup table or the like that maps all permissible challenges to corresponding responses for the PUF and may be generated in advance and stored in memory of the receiving device. The data to be encrypted may be further encoded to more fully exercise the PUF to enhance security. Decryption operations are also described.

    PHYSICALLY UNCLONABLE FUNCTION BASED ON COMPARISON OF MTJ RESISTANCES
    4.
    发明申请
    PHYSICALLY UNCLONABLE FUNCTION BASED ON COMPARISON OF MTJ RESISTANCES 有权

    公开(公告)号：US20170365316A1

    公开(公告)日：2017-12-21

    申请号：US15185441

    申请日：2016-06-17

    Applicant: QUALCOMM Incorporated

    Inventor： Peiyuan Wang ,  Jung Pill Kim ,  Jimmy Jianan Kan ,  Chando Park ,  Seung Kang

    IPC: G11C11/16

    CPC classification number: G11C11/1675 ,  G11C7/20 ,  G11C11/1693 ,  G11C11/1695 ,  G11C14/0081

    Abstract: In a particular aspect, an apparatus includes a magnetic random access memory (MRAM) cell including a pair of cross coupled inverters including a first inverter and a second inverter. The first inverter includes a first transistor coupled to a first node and a second transistor coupled to the first node. The second inverter includes a third transistor coupled to a second node and a fourth transistor coupled to the second node. The MRAM cell includes a first magnetic tunnel junction (MTJ) element coupled to the second transistor and a second MTJ element coupled to the fourth transistor. The apparatus further includes a voltage initialization circuit coupled to the MRAM cell. The voltage initialization circuit is configured to substantially equalize voltages of the first node and the second node in response to an initialization signal.

    CONTACTLESS DATA COMMUNICATION USING IN-PLANE MAGNETIC FIELDS, AND RELATED SYSTEMS AND METHODS
    5.
    发明申请
    CONTACTLESS DATA COMMUNICATION USING IN-PLANE MAGNETIC FIELDS, AND RELATED SYSTEMS AND METHODS 有权
    使用平面内磁场进行无缝数据通信，以及相关系统和方法

    公开(公告)号：US20170019153A1

    公开(公告)日：2017-01-19

    申请号：US15280119

    申请日：2016-09-29

    Applicant: QUALCOMM Incorporated

    Inventor： Wenqing Wu ,  Senthil Kumar Govindaswamy ,  Raghu Sagar Madala ,  Peiyuan Wang ,  Kendrick Hoy Leong Yuen ,  David Joseph Winston Hansquine

    IPC: H04B5/00 ,  H04W4/00

    CPC classification number: H04B5/0031 ,  G09G3/2096 ,  G09G2370/16 ,  H01L27/22 ,  H01L43/08 ,  H04B5/0087 ,  H04W4/80

    Abstract: Embodiments described herein are related to contactless data communication. Related systems and methods for contactless data communication are disclosed herein. For example, a magnetic field-based contactless transmitter is disclosed that includes a substrate, a pair of dipole coils disposed on the substrate, and a drive circuit electrically coupled to the pair of dipole coils. To transmit data to a magnetic tunnel junction (MTJ) receiver disposed on a second substrate, the drive circuit is configured to drive the pair of dipole coils so as to generate a magnetic field in-plane to the MTJ receiver. Data can be transmitted from the magnetic field-based contactless transmitter to the MTJ receiver using the magnetic field.

    Abstract translation: 本文描述的实施例涉及非接触式数据通信。 本文公开了用于非接触式数据通信的相关系统和方法。 例如，公开了一种基于磁场的非接触式发射器，其包括衬底，设置在衬底上的一对偶极线圈，以及与该对偶极线圈电耦合的驱动电路。 为了将数据发送到设置在第二基板上的磁性隧道结（MTJ）接收器，驱动电路被配置为驱动一对偶极子线圈，以便在MTJ接收器的平面内产生磁场。 可以使用磁场将数据从基于磁场的非接触式发射机传输到MTJ接收机。

    MESSAGE-BASED KEY GENERATION USING PHYSICAL UNCLONABLE FUNCTION (PUF)
    9.
    发明申请
    MESSAGE-BASED KEY GENERATION USING PHYSICAL UNCLONABLE FUNCTION (PUF) 审中-公开

    公开(公告)号：US20180145838A1

    公开(公告)日：2018-05-24

    申请号：US15356112

    申请日：2016-11-18

    Applicant: QUALCOMM Incorporated

    Inventor： Peiyuan Wang ,  Chando Park ,  Jimmy Jianan Kan ,  Seung Hyuk Kang

    IPC: H04L9/32 ,  H04L9/08 ,  G06F21/72

    CPC classification number: H04L9/3278 ,  G06F21/73 ,  H04L9/0866

    Abstract: Exemplary features pertain to secure communications using Physical Unclonable Function (PUF) devices. Segments of a message to be encrypted are sequentially applied to a PUF device as a series of challenges to obtain a series of responses for generating a sequence of encryption keys, whereby a previous segment of the message is used to obtain a key for encrypting a subsequent segment of the message. The encrypted message is sent to a separate (receiving) device that employs a logical copy of the PUF device for decrypting the message. The logical copy of the PUF may be a lookup table or the like that maps all permissible challenges to corresponding responses for the PUF and may be generated in advance and stored in memory of the receiving device. The data to be encrypted may be further encoded to more fully exercise the PUF to enhance security. Decryption operations are also described.

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