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).
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Patent number: 11522626Abstract: 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: GrantFiled: April 2, 2020Date of Patent: December 6, 2022Assignee: Hitachi Energy Switzerland AGInventors: Danu Tjahjono, Rafiq Shaikh, Ajay K. Dassu
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Publication number: 20210314077Abstract: 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: ApplicationFiled: April 2, 2020Publication date: October 7, 2021Inventors: Danu Tjahjono, Rafiq Shaikh, Ajay K. Dassu
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Patent number: 10637856Abstract: 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: GrantFiled: December 12, 2017Date of Patent: April 28, 2020Assignee: ABB Power Grids Switzerland AGInventors: Danu Tjahjono, Sunil Assao, Rafiq Shaikh
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Publication number: 20190182243Abstract: 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: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Applicant: ABB Schweiz AGInventors: Danu Tjahjono, Sunil Assao, Rafiq Shaikh
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Patent number: 10291524Abstract: 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: GrantFiled: August 17, 2017Date of Patent: May 14, 2019Assignee: ABB Schweiz AGInventors: Danu Tjahjono, Nan Li, Mosleh Uddin
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Publication number: 20190058659Abstract: 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: ApplicationFiled: August 17, 2017Publication date: February 21, 2019Applicant: ABB Schweiz AGInventors: Danu Tjahjono, Nan Li, Mosleh Uddin
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Patent number: 9602227Abstract: 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: GrantFiled: June 27, 2014Date of Patent: March 21, 2017Assignee: ABB IncInventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Patent number: 9247417Abstract: 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: GrantFiled: January 15, 2014Date of Patent: January 26, 2016Assignee: ABB Inc.Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Patent number: 9247397Abstract: 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: GrantFiled: January 15, 2014Date of Patent: January 26, 2016Assignee: ABB Inc.Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Patent number: 9088546Abstract: 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: GrantFiled: October 15, 2014Date of Patent: July 21, 2015Assignee: ABB Inc.Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
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Publication number: 20150201323Abstract: 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: ApplicationFiled: January 15, 2014Publication date: July 16, 2015Applicant: TROPOS NETWORKS, INC.Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Publication number: 20150200735Abstract: 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: ApplicationFiled: June 27, 2014Publication date: July 16, 2015Applicant: TROPOS NETWORKS, INC.Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Publication number: 20150201312Abstract: 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: ApplicationFiled: January 15, 2014Publication date: July 16, 2015Applicant: Tropos Networks, Inc.Inventors: Danu Tjahjono, Wenge Ren, Amalavoyal Narasimha Chari, Balaji Rajavelu
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Publication number: 20150033325Abstract: 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: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Applicant: Tropos Networks, Inc.Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
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Patent number: 8893262Abstract: 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: GrantFiled: April 23, 2013Date of Patent: November 18, 2014Assignee: Tropos Networks, Inc.Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren
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Publication number: 20140068750Abstract: 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: ApplicationFiled: April 23, 2013Publication date: March 6, 2014Applicant: Tropos Networks, Inc.Inventors: Danu Tjahjono, Rafiq Shaikh, Wenge Ren