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    ID-based control unit-key fob pairing
    2.
    发明授权
    ID-based control unit-key fob pairing 有权

    公开(公告)号：US10857975B2

    公开(公告)日：2020-12-08

    申请号：US16519779

    申请日：2019-07-23

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jin-Meng Ho ,  Eric Peeters

    IPC分类号： G06F21/00 ,  H04L29/06 ,  B60R25/24 ,  H04W12/00 ,  H04W12/04 ,  H04L9/08 ,  G06K7/10 ,  G07C9/00 ,  H04L9/14 ,  H04L9/30 ,  H04L9/32

    摘要： A method for pairing a key fob with a control unit is provided. The key fob executes an ID authenticated key agreement protocol with a pairing device based on a key fob identification to authenticate one another and to generate a first encryption key. The pairing device encrypts a control unit identification using the first encryption key. The key fob receives the encrypted control unit identification transmitted from the pairing device. The key fob then executes an ID authenticated key agreement protocol with the control unit based on the control unit identification to authenticate one another and to generate a second encryption key. The key fob then receives an operational key transmitted from the control unit that is encrypted with the second encryption key.

    Certificate-based pairing of key fob device and control unit
    3.
    发明授权
    Certificate-based pairing of key fob device and control unit 有权

    公开(公告)号：US10293785B2

    公开(公告)日：2019-05-21

    申请号：US16011892

    申请日：2018-06-19

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Eric Peeters ,  Jin-Meng Ho

    IPC分类号： H04L29/06 ,  B60R25/24 ,  H04W12/04 ,  H04L9/08 ,  G06K7/10 ,  G07C9/00 ,  H04L9/14 ,  H04L9/30 ,  H04L9/32

    摘要： A control unit, in a disclosed embodiment, includes a transceiver, memory, and a processor. The processor is coupled to the transceiver and memory and executes instructions from the memory to cause the control unit to receive a first transmission containing a certificate, verify the authenticity of the certificate, and, after verifying authenticity of the certificate, execute a public key agreement protocol to generate a first common secret encryption key, receive a second transmission containing an encrypted first public key that is encrypted by the first common secret encryption key, decrypt the encrypted first public key using the first common secret encryption key to determine the first public key, execute a public key agreement protocol to generate a second common secret encryption key, generate an operational key, encrypt the operational key using the second common secret encryption key, and transmit the encrypted operational key.

    ACCESS AND POWER MANAGEMENT FOR CENTRALIZED NETWORKS
    4.
    发明申请
    ACCESS AND POWER MANAGEMENT FOR CENTRALIZED NETWORKS 审中-公开

    公开(公告)号：US20190007905A1

    公开(公告)日：2019-01-03

    申请号：US16100982

    申请日：2018-08-10

    申请人： Texas Instruments Incorporated

    发明人： Jin-Meng Ho

    IPC分类号： H04W52/02 ,  H04W72/04 ,  H04W74/06

    CPC分类号： H04W52/0235 ,  H04W48/16 ,  H04W52/0216 ,  H04W52/0248 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/006 ,  H04W74/06 ,  Y02D70/00

    摘要： A system and method for managing power in a subnet having a hub in communication with one or more nodes is disclosed. The hub and nodes communicate using one or more non-contention access methods, such as scheduled, polled or posted access. The node may enter a sleep or hibernation state while no scheduled, polled or posted allocation interval is pending. The hibernation state allows the node to hibernate through one or more entire beacon periods. In the sleep state, the node may be asleep between any scheduled, polled and posted allocation intervals for the node or during another node's scheduled allocation interval in a current beacon period. By selecting which access scheme is in use, the node and hub can increase the node's chances to be in hibernation or sleep state and minimize power consumption.

    PAIRWISE TEMPORAL KEY CREATION FOR SECURE NETWORKS
    5.
    发明申请
    PAIRWISE TEMPORAL KEY CREATION FOR SECURE NETWORKS 审中-公开

    公开(公告)号：US20180159831A1

    公开(公告)日：2018-06-07

    申请号：US15866762

    申请日：2018-01-10

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jin-Meng Ho

    IPC分类号： H04L29/06 ,  H04L9/08 ,  H04L9/32

    CPC分类号： H04L63/0428 ,  H04L9/0844 ,  H04L9/0869 ,  H04L9/3242 ,  H04L63/061

    摘要： A system and method for establishing a pairwise temporal key (PTK) between two devices based on a shared master key and using a single message authentication codes (MAC) algorithm is disclosed. The devices use the shared master key to independently compute four MACs representing the desired PTK, a KCK, and a first and a second KMAC. The Responder sends its first KMAC to the Initiator, which retains the computed PTK only if it verifies that the received first KMAC equals its computed first KMAC and hence that the Responder indeed possesses the purportedly shared master key. The Initiator sends a third message including the second KMAC to the Responder. The Responder retains the computed PTK only if it has verified that the received second KMAC equals its computed second KMAC and hence that the Initiator indeed possesses the purportedly shared master key.

    MITIGATION OF INTERFERENCE BETWEEN WIRELESS NETWORKS
    6.
    发明申请
    MITIGATION OF INTERFERENCE BETWEEN WIRELESS NETWORKS 审中-公开

    公开(公告)号：US20180097571A1

    公开(公告)日：2018-04-05

    申请号：US15804958

    申请日：2017-11-06

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jin-Meng Ho

    IPC分类号： H04B15/00 ,  H04W48/12

    CPC分类号： H04B15/00 ,  H04W48/12

    摘要： A system and method for minimizing or preventing interference between wireless networks is disclosed. A network hub broadcasts a beacon signal within repeating beacon periods. The position of the beacon signal shifts within each beacon period based upon a predetermined pseudo-random sequence. The beacon signal includes data identifying the current beacon shift sequence and the current phase of the sequence. Neighboring hubs independently or jointly determine and broadcast their own beacon shift sequences and phases for their respective networks from a predetermined list. Nodes connected with the network hubs are assigned allocation intervals having a start time that is set relative to the beacon signal. The start time and duration of the allocation interval wraps around the beacon period if the allocation-interval would otherwise start or continue in a next beacon period.

    IMPLANT ACCESS IN THE MEDICAL IMPLANT COMMUNICATIONS SERVICE BAND
    7.
    发明申请
    IMPLANT ACCESS IN THE MEDICAL IMPLANT COMMUNICATIONS SERVICE BAND 审中-公开

    公开(公告)号：US20170332402A1

    公开(公告)日：2017-11-16

    申请号：US15666732

    申请日：2017-08-02

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jin-Meng Ho

    IPC分类号： H04W74/06 ,  H04L29/08 ,  H04J3/16

    CPC分类号： H04W74/06 ,  H04J3/1682 ,  H04L67/12

    摘要： A system and method for providing communications between a hub (medical controller) and a node (an implant) are disclosed. The hub selects an operating channel within a channel group in accordance with applicable regulations, and transmits signals to facilitate communications with nodes. A node sequentially tunes to individual channels within the group, monitoring each channel for a hub transmission during a monitoring period. If a hub transmission is detected, the node stays on the current channel. Otherwise, the node tunes to a next channel in the channel group. The hub transmission may be directed to unconnected nodes, to a single connected node, or to a group of connected nodes. The node transmits a first frame to the hub at a designated transmission time and receives a response. The node reports an emergency by sequentially transmitting emergency frames on each of the channels until receiving an acknowledgment from the hub.

    PAIRWISE TEMPORAL KEY CREATION FOR SECURE NETWORKS
    9.
    发明申请
    PAIRWISE TEMPORAL KEY CREATION FOR SECURE NETWORKS 审中-公开

    公开(公告)号：US20170093814A1

    公开(公告)日：2017-03-30

    申请号：US15378573

    申请日：2016-12-14

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jin-Meng Ho

    IPC分类号： H04L29/06 ,  H04L9/08 ,  H04L9/32

    CPC分类号： H04L63/0428 ,  H04L9/0844 ,  H04L9/0869 ,  H04L9/3242 ,  H04L63/061

    摘要： A system and method for establishing a pairwise temporal key (PTK) between two devices based on a shared master key and using a single message authentication codes (MAC) algorithm is disclosed. The devices use the shared master key to independently compute four MACs representing the desired PTK, a KCK, and a first and a second KMAC. The Responder sends its first KMAC to the Initiator, which retains the computed PTK only if it verifies that the received first KMAC equals its computed first KMAC and hence that the Responder indeed possesses the purportedly shared master key. The Initiator sends a third message including the second KMAC to the Responder. The Responder retains the computed PTK only if it has verified that the received second KMAC equals its computed second KMAC and hence that the Initiator indeed possesses the purportedly shared master key.

    Clock Synchronization and Centralized Guard Time Provisioning
    10.
    发明申请
    Clock Synchronization and Centralized Guard Time Provisioning 审中-公开
    时钟同步和集中保卫时间配置

    公开(公告)号：US20160227499A1

    公开(公告)日：2016-08-04

    申请号：US15093322

    申请日：2016-04-07

    申请人： Texas Instruments Incorporated

    发明人： Jin-Meng Ho

    IPC分类号： H04W56/00

    CPC分类号： H04W56/003 ,  H04W56/001 ,  H04W56/0015 ,  H04W56/002

    摘要： Embodiments of the invention provide a method to accommodate clock drift and guard time in a centralized fashion. In one embodiment, a device is adapted to communicate. Clocks are synchronized using beacon or/and acknowledgement frames. A centralized guard time is calculated between two neighboring allocation intervals. The centralized guard time accounts for clock drift during a nominal synchronization interval. An interval at least as long as the centralized guard time is provisioned between two neighboring allocation intervals. One or more frames are transmitted within the allocation intervals.

    摘要翻译： 本发明的实施例提供了一种以集中方式适应时钟漂移和保护时间的方法。 在一个实施例中，设备适于通信。 时钟使用信标或/和确认帧进行同步。 在两个相邻的分配间隔之间计算集中的保护时间。 集中保护时间在标称同步间隔期间占用时钟漂移。 至少与在两个相邻分配间隔之间提供集中保护时间的间隔。 在分配间隔内发送一个或多个帧。