Patents by Inventor Helder Antunes

Helder Antunes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9532194
    Abstract: Apparatus, methods and logic for vehicles to determine vehicle to vehicle (V2V) safety message transmission rates for transmitting V2V safety messages based on how frequently the vehicles actually need to exchange safety messages, including factors such as vehicle velocities, distances among vehicles, and on how quickly the inter-vehicle distances are closing up. The determined V2V safety message transmission rates are selectively dynamically adjusted in accordance with detected significant changes in one or more of the inter-vehicle distances or inter-vehicle speeds. To avoid needless frequent changes to the transmission rate, statistical modeling techniques including hypothesis testing and sequential change detection are selectively used to more accurately detect significant changes in inter-vehicle distances or inter-vehicle speeds that warrant a change to the message transmission rate.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 27, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Tao Zhang, Helder Antunes, Chintan Patel, Mahbubul Alam
  • Patent number: 9380044
    Abstract: A gateway apparatus supports differentiated secure communications among heterogeneous electronic devices. A communication port communicates via communication networks of different types with two or more associated devices having diverse secure communication capabilities. The gateway logic selectively authenticates the associated devices for group membership into a Secure Communication Group (SCG), and selectively communicates Secure Communication Group Keys (SCGKs) to the devices having the diverse secure communication capabilities for selectively generating session keys locally by the associated devices for mutual secure communication in accordance with the group membership of the associated devices in the SCG.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 28, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Tao Zhang, Helder Antunes, Aaron Lung, Chintan Patel, Ajith Thrivikramannair, Akshay Singhal
  • Patent number: 9344856
    Abstract: The trustworthiness of vehicle-to-vehicle (V2V) messages received from one or more associated vehicles in the vicinity of a subject vehicle is determined autonomously by a false signal detection system of the subject vehicle. Physical evidence relating to the associated vehicles is collected, and a statistical model is used to perform an analysis of the collected data. A V2V message is received by the system from a first one of the associated vehicles and a trustworthiness level of the message is determined in accordance with a correlation between the received V2V message and the result of the analyzed physical data relating to the first associated vehicle. The correlation may be a comparison of data contained in the received V2V message relative to a result of a stochastic analysis of the physical data. The received V2V message may be any V2V safety message including Emergency Electronic Brake Light (EEBL) messages.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: May 17, 2016
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Tao Zhang, Douglas Chan, Helder Antunes
  • Publication number: 20160072781
    Abstract: A gateway apparatus supports differentiated secure communications among heterogeneous electronic devices. A communication port communicates via communication networks of different types with two or more associated devices having diverse secure communication capabilities. The gateway logic selectively authenticates the associated devices for group membership into a Secure Communication Group (SCG), and selectively communicates Secure Communication Group Keys (SCGKs) to the devices having the diverse secure communication capabilities for selectively generating session keys locally by the associated devices for mutual secure communication in accordance with the group membership of the associated devices in the SCG.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 10, 2016
    Inventors: Tao ZHANG, Helder Antunes, Aaron Lung, Chintan Patel, Ajith Thrivikramannair, Akshay Singhal
  • Patent number: 9282110
    Abstract: In an example embodiment herein, there is provided methods and a system for cloud-assisted threat defense for connected vehicles. A vehicle suitably includes an on-board computer system for operating and/or controlling various systems on the vehicle. The on-board computer system suitably operates in connection with or includes an on-board threat defense module for detecting and protecting against malware attacks and other security threats to the vehicle. In an example embodiment, a cloud-based security component or security cloud assists with the detection and protection against security threats and malware attacks to the vehicle while minimizing the processing load and memory requirements for the on-board threat defense module.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: March 8, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Tao Zhang, Helder Antunes, Siddhartha Aggarwal, Chintankumar Patel
  • Publication number: 20150365389
    Abstract: A system authenticates in-vehicle electronic devices having unequal capabilities such as having varying different communication and processing capabilities. A Connected Vehicle Gateway portion of a selected in-vehicle device acts as an onboard authentication proxy and onboard key server functionality for other in-vehicle devices, and serves as an interface between an in-vehicle network and one or more associated external networks, thereby eliminating the need for explicit peer discovery protocol and the requirement of devices to perform key establishment with each individual communication peer. Instead, each in-vehicle device establishes the group keys as a result of its authentication with the onboard key server and uses the group keys to locally generate and update its session keys. The onboard key server selectively obtains the keys from one or more off-board authentication servers and distributes them to selected in-vehicle devices.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 17, 2015
    Inventors: Tao Zhang, Helder Antunes, Aaron Lung, Chintan Patel, Ajith Thrivikramannair, Akshay Singhal
  • Patent number: 9215228
    Abstract: A system authenticates in-vehicle electronic devices having unequal capabilities such as having varying different communication and processing capabilities. A Connected Vehicle Gateway portion of a selected in-vehicle device acts as an onboard authentication proxy and onboard key server functionality for other in-vehicle devices, and serves as an interface between an in-vehicle network and one or more associated external networks, thereby eliminating the need for explicit peer discovery protocol and the requirement of devices to perform key establishment with each individual communication peer. Instead, each in-vehicle device establishes the group keys as a result of its authentication with the onboard key server and uses the group keys to locally generate and update its session keys. The onboard key server selectively obtains the keys from one or more off-board authentication servers and distributes them to selected in-vehicle devices.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 15, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Tao Zhang, Helder Antunes, Aaron Lung, Chintan Patel, Ajith Thrivikramannair, Akshay Singhal
  • Publication number: 20150327028
    Abstract: Apparatus, methods and logic for vehicles to determine vehicle to vehicle (V2V) safety message transmission rates for transmitting V2V safety messages based on how frequently the vehicles actually need to exchange safety messages, including factors such as vehicle velocities, distances among vehicles, and on how quickly the inter-vehicle distances are closing up. The determined V2V safety message transmission rates are selectively dynamically adjusted in accordance with detected significant changes in one or more of the inter-vehicle distances or inter-vehicle speeds. To avoid needless frequent changes to the transmission rate, statistical modeling techniques including hypothesis testing and sequential change detection are selectively used to more accurately detect significant changes in inter-vehicle distances or inter-vehicle speeds that warrant a change to the message transmission rate.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 12, 2015
    Applicant: Cisco Systems, Inc.
    Inventors: Tao Zhang, Helder Antunes, Chintan Patel, Mahbubul Alam
  • Publication number: 20150200957
    Abstract: The trustworthiness of vehicle-to-vehicle (V2V) messages received from one or more associated vehicles in the vicinity of a subject vehicle is determined autonomously by a false signal detection system of the subject vehicle. Physical evidence relating to the associated vehicles is collected, and a statistical model is used to perform an analysis of the collected data. A V2V message is received by the system from a first one of the associated vehicles and a trustworthiness level of the message is determined in accordance with a correlation between the received V2V message and the result of the analyzed physical data relating to the first associated vehicle. The correlation may be a comparison of data contained in the received V2V message relative to a result of a stochastic analysis of the physical data. The received V2V message may be any V2V safety message including Emergency Electronic Brake Light (EEBL) messages.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 16, 2015
    Applicant: Cisco Systems, Inc.
    Inventors: Tao Zhang, Douglas Chan, Helder Antunes
  • Publication number: 20150150124
    Abstract: In an example embodiment herein, there is provided methods and a system for cloud-assisted threat defense for connected vehicles. A vehicle suitably includes an on-board computer system for operating and/or controlling various systems on the vehicle. The on-board computer system suitably operates in connection with or includes an on-board threat defense module for detecting and protecting against malware attacks and other security threats to the vehicle. In an example embodiment, a cloud-based security component or security cloud assists with the detection and protection against security threats and malware attacks to the vehicle while minimizing the processing load and memory requirements for the on-board threat defense module.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Tao Zhang, Helder Antunes, Siddhartha Aggarwal, Chintankumar Patel