公开(公告)号：US11812268B2

公开(公告)日：2023-11-07

申请号：US17491218

申请日：2021-09-30

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Vishal Coelho ,  Alexis Justine Burnight ,  Ramanuja Vedantham ,  Karl-Heinz Steinmetz

IPC: H04W12/104 ,  H04W12/106

CPC classification number: H04W12/106

Abstract: A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.

公开(公告)号：US12047778B2

公开(公告)日：2024-07-23

申请号：US17399793

申请日：2021-08-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Archanaa Santhana Krishnan ,  Alexis Justine Burnight ,  Ariton E. Xhafa

IPC: H04L29/06 ,  H04L9/08 ,  H04W12/041 ,  H04W12/0431 ,  H04W12/069 ,  H04W12/50

CPC classification number: H04W12/069 ,  H04L9/0822 ,  H04L9/0861 ,  H04W12/041 ,  H04W12/0431 ,  H04W12/50 ,  H04L2209/80

Abstract: Aspects of this description provide for a computer program product comprising computer executable instructions. In at least some examples, the instructions are executable by a controller to cause the controller to broadcast, in a data frame, a scan request to a node, the scan request including a certificate of the controller and a public authentication key of the controller, receive, in the data frame, a scan response from the node, the scan response including a certificate of the node and a public authentication key of the node, and perform pairing between the controller and the node based on the public authentication key of the node and a private authentication key of the controller.

公开(公告)号：US12257921B2

公开(公告)日：2025-03-25

申请号：US18407719

申请日：2024-01-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Torbjørn Sørby ,  Minghua Fu ,  Jesus Daniel Torres Bardales ,  Ramanuja Vedantham ,  Alexis Justine Burnight ,  Archanaa Santhana Krishnan

IPC: B60L58/10 ,  H04L67/12

Abstract: A vehicular battery management system (BMS) comprises a battery controller, a set of battery cells, a primary network node coupled to the battery controller, and a secondary network node coupled to the set of battery cells. The primary and secondary network nodes are configured to wirelessly communicate with each other using frames that share a common frame format. The frame format includes one or more bits and a status of the one or more bits indicates whether the secondary network node is to communicate with the primary network node on behalf of another secondary network node.

公开(公告)号：US11872905B2

公开(公告)日：2024-01-16

申请号：US17233106

申请日：2021-04-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Torbjørn Sørby ,  Minghua Fu ,  Jesus Daniel Torres Bardales ,  Ramanuja Vedantham ,  Alexis Justine Burnight ,  Archanaa Santhana Krishnan

IPC: B60L58/10 ,  H04L67/12

CPC classification number: B60L58/10 ,  B60L2240/42 ,  H04L67/12

Abstract: A vehicular battery management system (BMS) comprises a battery controller, a set of battery cells, a primary network node coupled to the battery controller, and a secondary network node coupled to the set of battery cells. The primary and secondary network nodes are configured to wirelessly communicate with each other using frames that share a common frame format. The frame format includes one or more bits and a status of the one or more bits indicates whether the secondary network node is to communicate with the primary network node on behalf of another secondary network node.

公开(公告)号：US12261737B2

公开(公告)日：2025-03-25

申请号：US17563993

申请日：2021-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Alexis Justine Burnight ,  Ariton E. Xhafa ,  Minghua Fu ,  Vishal Coelho ,  Caleb Jackson Overbay

IPC: H04L41/0803 ,  H04W8/00 ,  H04W84/18

Abstract: A method includes determining by a primary node a network formation process to establish a network with a secondary node according to a network condition of the primary node and the secondary node, the secondary node previously paired to the primary node in a previously established network connection between the primary node and the secondary node, performing by the primary node a scanning phase as part of the network formation process with the secondary node according to network configuration information stored by the primary node and the secondary node and obtained by the primary node and the secondary node in the previously established network connection; and skipping by the primary node a pairing phase of the network formation process with the secondary node responsive to the secondary node being previously paired to the primary node in the previously established network connection.

公开(公告)号：US12231161B2

公开(公告)日：2025-02-18

申请号：US17524505

申请日：2021-11-11

Applicant: Texas Instruments Incorporated

Inventor： Alexis Justine Burnight ,  Ariton E. Xhafa ,  Ramanuja Vedantham ,  Jesus Daniel Torres Bardales ,  Vishal Coelho

IPC: H04B1/7156 ,  H04B1/3805 ,  H04W72/0453

Abstract: A communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless transceiver and a secondary wireless transceiver. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless transceiver and the secondary wireless transceiver. The communication circuit further includes resynchronization circuitry configured to resynchronize the secondary wireless transceiver with the established wireless network within a target time interval.

公开(公告)号：US12108246B2

公开(公告)日：2024-10-01

申请号：US17314865

申请日：2021-05-07

Applicant: Texas Instruments Incorporated

Inventor： Archanaa Santhana Krishnan ,  Alexis Justine Burnight ,  Ariton E. Xhafa

IPC: H04W12/04 ,  H04W12/041 ,  H04W12/0471

CPC classification number: H04W12/041 ,  H04W12/0471

Abstract: A wireless interface includes: network formation circuitry configured to establish a wireless network between a primary node and a secondary node; data exchange circuitry configured to perform data exchanges between the primary node and the secondary node using secure sessions; and key refreshment circuitry configured to derive a new network key for the network based on a pre-shared key and a current network key concatenated with a session count. The new key is derived during at least one of the secure sessions.