Patents by Inventor Danu Tjahjono

Danu Tjahjono 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: 11522626
    Abstract: Exemplary of embodiments of the disclosure include a method which includes determining, by a first device, whether the first device has a current time and transmitting a request for the current time to a second device if the first device does not have the current time. The second device is in a local network. The method further includes receiving, by the first device, the current time from the second device, authenticating a certificate based on the current time received from the second device, and establishing a network connection to the local network based on the authenticated certificate.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 6, 2022
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Danu Tjahjono, Rafiq Shaikh, Ajay K. Dassu
  • Publication number: 20210314077
    Abstract: Exemplary of embodiments of the disclosure include a method which includes determining, by a first device, whether the first device has a current time and transmitting a request for the current time to a second device if the first device does not have the current time. The second device is in a local network. The method further includes receiving, by the first device, the current time from the second device, authenticating a certificate based on the current time received from the second device, and establishing a network connection to the local network based on the authenticated certificate.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 7, 2021
    Inventors: Danu Tjahjono, Rafiq Shaikh, Ajay K. Dassu
  • Patent number: 10637856
    Abstract: Systems, methods, and apparatuses for deploying a wireless router are disclosed. One method includes accessing, by the wireless router, default credentials, checking, by the wireless router, access to a backhaul link to an upstream network, authenticating, by the wireless router, using the default credentials, procuring, by the wireless router, a customer certificate of a customer, authenticating, by the wireless router, with an authentication server using the customer certificate, procuring, by the wireless router, from a management server, a customer specific wireless mesh configuration after being authenticated by the authentication server, rebooting, by the wireless router, using the customer specific wireless mesh configuration, thereby allowing the wireless router to operate within a wireless mesh network, and broadcasting, by the wireless router, service set identifiers (SSIDs) derived from the default credentials.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 28, 2020
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Danu Tjahjono, Sunil Assao, Rafiq Shaikh
  • Publication number: 20190182243
    Abstract: Systems, methods, and apparatuses for deploying a wireless router are disclosed. One method includes accessing, by the wireless router, default credentials, checking, by the wireless router, access to a backhaul link to an upstream network, authenticating, by the wireless router, using the default credentials, procuring, by the wireless router, a customer certificate of a customer, authenticating, by the wireless router, with an authentication server using the customer certificate, procuring, by the wireless router, from a management server, a customer specific wireless mesh configuration after being authenticated by the authentication server, rebooting, by the wireless router, using the customer specific wireless mesh configuration, thereby allowing the wireless router to operate within a wireless mesh network, and broadcasting, by the wireless router, service set identifiers (SSIDs) derived from the default credentials.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 13, 2019
    Applicant: ABB Schweiz AG
    Inventors: Danu Tjahjono, Sunil Assao, Rafiq Shaikh
  • Patent number: 10291524
    Abstract: Systems, methods, and apparatuses for supporting traffic of a wireless mesh network are disclosed. One apparatus includes a node that includes one or more transceivers for communicating with other devices of the wireless mesh network, and a processor. The processor is operative to perform operations including receiving routing packets from at least one upstream node of the wireless mesh network, where reception of the routing packets is facilitated by a first IP version; selecting an upstream routing path to an upstream gateway based on a routing path quality; determining from the routing packets whether a first upstream node directly upstream from the node supports a second IP version; and establishing an IP tunnel with the upstream gateway or a second upstream node of the upstream routing path that supports the second IP version if the first upstream node does not support the second IP version.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 14, 2019
    Assignee: ABB Schweiz AG
    Inventors: Danu Tjahjono, Nan Li, Mosleh Uddin
  • Publication number: 20190058659
    Abstract: Systems, methods, and apparatuses for supporting traffic of a wireless mesh network are disclosed. One apparatus includes a node that includes one or more transceivers for communicating with other devices of the wireless mesh network, and a processor. The processor is operative to perform operations including receiving routing packets from at least one upstream node of the wireless mesh network, where reception of the routing packets is facilitated by a first IP version; selecting an upstream routing path to an upstream gateway based on a routing path quality; determining from the routing packets whether a first upstream node directly upstream from the node supports a second IP version; and establishing an IP tunnel with the upstream gateway or a second upstream node of the upstream routing path that supports the second IP version if the first upstream node does not support the second IP version.
    Type: Application
    Filed: August 17, 2017
    Publication date: February 21, 2019
    Applicant: ABB Schweiz AG
    Inventors: Danu Tjahjono, Nan Li, Mosleh Uddin
  • Patent number: 9602227
    Abstract: Systems, methods and apparatuses for supporting broadcast traffic through a wireless mesh network are disclosed. One method includes obtaining broadcast listening information of a broadcast listening access node, wherein the broadcast listening information includes an identifier of the broadcast listening access node, and a broadcast identifier of the broadcast listening device. The method further includes obtaining broadcast sourcing information of a broadcast sourcing access node, wherein the broadcast sourcing information includes an identifier of the broadcast sourcing access node, and a broadcast identifier of the broadcast sourcing device. The method further includes providing broadcast listening information of the broadcast listening access node to the broadcast sourcing access node upon determining the broadcast identifier of the broadcast sourcing device matches the broadcast identifier of the broadcast listening device.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: March 21, 2017
    Assignee: ABB Inc
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Patent number: 9247417
    Abstract: Systems, methods and apparatuses of supporting multicast traffic of a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive multicast traffic from a multicast traffic source through the one or more transceivers, associate the multicast traffic with a multicast group ID, and encapsulate the received multicast traffic in unicast IP packets that include a special destination IP address associated with the multicast group ID.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 26, 2016
    Assignee: ABB Inc.
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Patent number: 9247397
    Abstract: Systems, methods and apparatuses for distributing multicast traffic through a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive a unicast IP packet that includes a special destination IP address through at least one of the one or more transceivers, determine, based on the special destination IP address and a multicast group ID of a multicast distribution table, whether to forward the unicast IP packet to a downstream device, and route the unicast IP packet to the downstream device based on the determination.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 26, 2016
    Assignee: ABB Inc.
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Patent number: 9088546
    Abstract: Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node, and encapsulating non-IP packets of non-IP traffic within IP packets.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: July 21, 2015
    Assignee: ABB Inc.
    Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
  • Publication number: 20150201323
    Abstract: Systems, methods and apparatuses of supporting multicast traffic of a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive multicast traffic from a multicast traffic source through the one or more transceivers, associate the multicast traffic with a multicast group ID, and encapsulate the received multicast traffic in unicast IP packets that include a special destination IP address associated with the multicast group ID.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 16, 2015
    Applicant: TROPOS NETWORKS, INC.
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Publication number: 20150200735
    Abstract: Systems, methods and apparatuses for supporting broadcast traffic through a wireless mesh network are disclosed. One method includes obtaining broadcast listening information of a broadcast listening access node, wherein the broadcast listening information includes an identifier of the broadcast listening access node, and a broadcast identifier of the broadcast listening device. The method further includes obtaining broadcast sourcing information of a broadcast sourcing access node, wherein the broadcast sourcing information includes an identifier of the broadcast sourcing access node, and a broadcast identifier of the broadcast sourcing device. The method further includes providing broadcast listening information of the broadcast listening access node to the broadcast sourcing access node upon determining the broadcast identifier of the broadcast sourcing device matches the broadcast identifier of the broadcast listening device.
    Type: Application
    Filed: June 27, 2014
    Publication date: July 16, 2015
    Applicant: TROPOS NETWORKS, INC.
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Publication number: 20150201312
    Abstract: Systems, methods and apparatuses for distributing multicast traffic through a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive a unicast IP packet that includes a special destination IP address through at least one of the one or more transceivers, determine, based on the special destination IP address and a multicast group ID of a multicast distribution table, whether to forward the unicast IP packet to a downstream device, and route the unicast IP packet to the downstream device based on the determination.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 16, 2015
    Applicant: Tropos Networks, Inc.
    Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
  • Publication number: 20150033325
    Abstract: Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node, and encapsulating non-IP packets of non-IP traffic within IP packets.
    Type: Application
    Filed: October 15, 2014
    Publication date: January 29, 2015
    Applicant: Tropos Networks, Inc.
    Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
  • Patent number: 8893262
    Abstract: Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, and establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: November 18, 2014
    Assignee: Tropos Networks, Inc.
    Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
  • Publication number: 20140068750
    Abstract: Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, and establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node.
    Type: Application
    Filed: April 23, 2013
    Publication date: March 6, 2014
    Applicant: Tropos Networks, Inc.
    Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren