Patents by Inventor Himanshu Shah

Himanshu Shah 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: 11809639
    Abstract: Aspects presented herein may enable an electronic device to determine gyroscope biases and calibrate a gyroscope without a magnetometer or without relying on data generated from a magnetometer. In one aspect, an apparatus estimates a set of gyroscopic biases for a plurality of temperatures or temperature ranges to create a mapping that maps the plurality of temperatures or temperature ranges to the set of gyroscopic biases. The apparatus monitors temperatures of a gyroscope via a gyroscope temperature sensor. The apparatus calibrates the gyroscope in response to the gyroscope changing from a first temperature to a second temperature based on the mapping or based on a predicted value derived from the mapping. In some aspects, the apparatus calculates a DR trajectory of the apparatus based at least in part on the calibrated gyroscope and the accelerometer without using a magnetometer or without using data generated from the magnetometer.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: November 7, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: William Morrison, Hsiao Chien Liang, Gautam Nirula, Himanshu Shah
  • Patent number: 11777841
    Abstract: A method implemented in a network element includes, for a service, receiving a Segment Identifier (SID) list and an explicit list for an intended path in a Segment Routing network; expanding the SID list and comparing the expanded SID list to the explicit list; and setting the intended path as either valid or invalid based on the comparing. The intended path can be a primary path, and the steps can further include receiving a SID list and an explicit list for a backup path in the Segment Routing network. The steps can further include switching to the backup path responsive to a failure on the primary path, and switching back to the primary path responsive to it being valid.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: October 3, 2023
    Assignee: Ciena Corporation
    Inventors: Cengiz Alaettinoglu, Amal Karboubi, Himanshu Shah, Muthurajah Sivabalan
  • Patent number: 11722403
    Abstract: A method may include receiving a domain name system (DNS) query at a network device, where the DNS query may be associated with a traffic flow identified for rerouting through an alternative path utilizing an alternative network device instead of a default path. The method may also include rewriting the DNS query such that the DNS query is routed through the alternative network device along the alternative path and to a DNS server associated with the alternative path. The method may additionally include receiving a DNS response from the DNS server, where a resource identified in the DNS response may be based on the DNS query coming through the alternative network device.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: August 8, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Robin James, Mithun Iyer, Himanshu Shah
  • Publication number: 20230239176
    Abstract: Systems and methods associated with a node in a Segment Routing network include, responsive to what services are support at a node in a Segment Routing network, creating a bitmap to represent the plurality of services supported at the node; and transmitting an advertisement with the bitmap such that the advertisement is a single advertisement of multiple services. This approach can reduce the advertisement of rout updates by orders of magnitude.
    Type: Application
    Filed: April 5, 2023
    Publication date: July 27, 2023
    Inventors: Sami Boutros, Muthurajah Sivabalan, Himanshu Shah, Peng He
  • Patent number: 11658900
    Abstract: Systems and methods for extending Ethernet Virtual Private Network (EVPN) protocols are provided. A Link Aggregation Group (LAG), according to one implementation, includes a plurality of Ethernet Segments (ESs) and a plurality of service ports configured to communicate over the plurality of ESs. The service ports are configured to enable an operator device to access an EVPN to receive Layer 2 (L2) and Layer 3 (L3) Ethernet services. Also, the service ports are configured to enable the operator device to operate with multi-homing functionality to receive the L2 and L3 Ethernet services via redundant paths associated with the plurality of ESs. The services ports are further configured to respond to operator commands, whereby the operator commands include one or more operator commands related to switching among the redundant paths.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: May 23, 2023
    Assignee: Ciena Corporation
    Inventors: Marc Holness, Peng He, Himanshu Shah, Selvamani Ramasamy
  • Patent number: 11658898
    Abstract: A method may include identifying an address within a packet of a traffic flow associated with a network device. The method may also include comparing the address within the packet with a stored address, the stored address associated with a route for an alternative traffic path, where the alternative traffic path may be different from a default route of traffic passing through the network device. The method may additionally include, based on the address within the packet matching the stored address, routing the packet along the alternative traffic path instead of the default route of traffic.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: May 23, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Himanshu Shah, Murtuza Attarwala, Linus Aranha
  • Publication number: 20230120019
    Abstract: A node, in a first network, includes circuitry configured to determine a next hop as decided by Border Gateway Protocol (BGP) is an anycast prefix to a Route Reflector (RR) interconnecting the first network with a second network, responsive to the next hop being the anycast prefix to the RR, create a tunnel with a destination based on the anycast prefix, and utilize the tunnel for traffic having the next hop as the anycast prefix to the RR. The anycast prefix is assigned to two or more RRs interconnecting the first network and the second network. A first path is decided by BGP based on a BGP Path Selection Algorithm that is independent of a second path determined by Interior Gateway Protocol (IGP). The first path and the second path can be different, and wherein tunnel is utilized to ensure the traffic always follows the first path.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Inventors: Himanshu Shah, Atul Vadera, Jayant Kumar Bhardwaj, Piyush Sharma
  • Patent number: 11627017
    Abstract: Systems and methods include obtaining a plurality of services supported at the node; determining a bitmask to represent the plurality of services supported at the node, wherein the bitmask includes a starting service and each subsequent bit representing another service of the plurality of services and with each bit in the bitmask set based on the plurality of services supported at the node; and transmitting an advertisement to nodes in the Segment Routing network with a starting Service SID value and the bitmask based on the plurality of services supported at the node. The plurality of services can include any of a Virtual Private Wire Service (VPWS) and a Flexible Cross Connect (FXC) service.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: April 11, 2023
    Assignee: Ciena Corporation
    Inventors: Sami Boutros, Muthurajah Sivabalan, Himanshu Shah, Peng He
  • Publication number: 20230107423
    Abstract: Aspects presented herein may enable an electronic device to determine gyroscope biases and calibrate a gyroscope without a magnetometer or without relying on data generated from a magnetometer. In one aspect, an apparatus estimates a set of gyroscopic biases for a plurality of temperatures or temperature ranges to create a mapping that maps the plurality of temperatures or temperature ranges to the set of gyroscopic biases. The apparatus monitors temperatures of a gyroscope via a gyroscope temperature sensor. The apparatus calibrates the gyroscope in response to the gyroscope changing from a first temperature to a second temperature based on the mapping or based on a predicted value derived from the mapping. In some aspects, the apparatus calculates a DR trajectory of the apparatus based at least in part on the calibrated gyroscope and the accelerometer without using a magnetometer or without using data generated from the magnetometer.
    Type: Application
    Filed: September 29, 2021
    Publication date: April 6, 2023
    Inventors: William MORRISON, Hsiao Chien LIANG, Gautam NIRULA, Himanshu SHAH
  • Publication number: 20230095297
    Abstract: Systems and methods implemented in a network element in a Segment Routing network include, for a service having two or more candidate paths and responsive to a failure on a current candidate path of the two or more candidate paths, setting an eligibility flag for the current candidate path; and selecting another candidate path of the two or more candidate paths, for the service, based on their eligibility flag.
    Type: Application
    Filed: March 30, 2022
    Publication date: March 30, 2023
    Inventors: Cengiz Alaettinoglu, Amal Karboubi, Himanshu Shah, Muthurajah Sivabalan
  • Publication number: 20230094339
    Abstract: A router architecture that facilitates cloud exchange point routing is disclosed. The architecture relies upon B-nodes to connect branch network to cloud, S-nodes to connect services, and V-nodes to connect cloud to cloud. The nodes can be essentially stateless with node configuration stored outside a router, which facilitates ripping and replacement of nodes. Multiple virtual private clouds can be implemented with respective pluralities of Kubernetes pods and a master Kubernetes cluster. Consumer premises equipment is coupled to a first virtual private cloud that forms a virtual extensible local area network with a second private cloud.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Himanshu Shah, Atif Khan, Murtuza Attarwala
  • Publication number: 20230083861
    Abstract: A method for improving seed planter flowability comprising: admixing one or more seeds with a flow-aid composition comprising a modified starch, a non-modified starch, or a mixture thereof, wherein said flow-aid composition optionally comprises a mineral earth lubricant. A plurality of seeds comprising said flow-aid composition. A flow-aid composition comprising a modified starch, a non-modified starch, or a mixture thereof, wherein said flow-aid composition optionally comprises a mineral earth lubricant and further wherein said flow-aid composition is (i) free-flowing, and/or (ii) reduces seed agglomeration relative to one or more seeds admixed with talc, graphite, or a mixture thereof.
    Type: Application
    Filed: January 19, 2021
    Publication date: March 16, 2023
    Inventors: Gulam AHMED, Wendell RICH, Himanshu SHAH
  • Publication number: 20230060490
    Abstract: The present development is a method and device to monitor the salt level in a patient's blood without the need of laboratory facilities or intervention by medical personnel. The basic device is designed to measure the concentration of analytes, specifically sodium ion and potassium ion, in the patient's blood and to communicate the analyte level to the patient essentially instantaneously through a mobile monitor or display screen. In a variation, the device combines the analyte-concentration measuring function with a means for measuring the concentration of glucose in blood, and the blood analyte level and glucose level are displayed to the patient essentially instantaneously. Both the salt level device and the salt level+glucose level device may be further adapted to allow for the salt and glucose level data to be stored in a data storage base so the patient has an historical record of the concentration levels.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 2, 2023
    Inventors: Riya Shah, Himanshu Shah
  • Publication number: 20230067946
    Abstract: A method implemented in a network element includes, for a service, receiving a Segment Identifier (SID) list and an explicit list for an intended path in a Segment Routing network; expanding the SID list and comparing the expanded SID list to the explicit list; and setting the intended path as either valid or invalid based on the comparing. The intended path can be a primary path, and the steps can further include receiving a SID list and an explicit list for a backup path in the Segment Routing network. The steps can further include switching to the backup path responsive to a failure on the primary path, and switching back to the primary path responsive to it being valid.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Cengiz Alaettinoglu, Amal Karboubi, Himanshu Shah, Muthurajah Sivabalan
  • Patent number: 11595302
    Abstract: Systems and methods include obtaining a table having a plurality of addresses each having a plurality of attributes and classifications; responsive to a requirement to reduce a size of the table, reducing a number of the plurality of addresses based on one or more reduction approaches that use any of the plurality of attributes and classifications; and obtaining an output table having some or all of the plurality of addresses for a table receiver. The table can be obtained via control plane components including one or more of Interior Gateway Protocol (IGP) and Border Gateway Protocol (BGP). The requirement to reduce the size is based on a size of the table and a size of memory associated with the table receiver.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 28, 2023
    Assignee: Ciena Corporation
    Inventors: Thor Odd Andres Ramsland, Himanshu Shah, Prabhakar Nagral, Dennis E. Hayes, Marc Holness
  • Patent number: 11563675
    Abstract: A node, in a first network, includes circuitry configured to add a label stack to a packet associated with one of a Layer 2 Virtual Private Network (L2VPN) and a Layer 3 Virtual Private Network (L3VPN), wherein the packet is destined for a second network having at least a pair of Border Gateway Protocol-Label Unicast (BGP-LU) Route Reflector (RR) nodes interconnecting the first network, and wherein the label stack includes an anycast Segment Identifier (SID) for the RR nodes, in Segment Routing, and transmit the packet to the second network. The label stack also includes a BGP-LU label for a destination in the second network. Responsive to isolation of one of the RR nodes, a Point of Local Repair (PLR) node in the first network is configured to implement Topology-Independent Loop-Free Alternate (TI-LFA) for the anycast SID.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 24, 2023
    Assignee: Ciena Corporation
    Inventors: Himanshu Shah, Atul Vadera, Jayant Kumar Bhardwaj, Piyush Sharma
  • Patent number: 11553861
    Abstract: The present development is a method and device to monitor the salt level in a patient's blood without the need of laboratory facilities or intervention by medical personnel. The basic device is designed to measure the concentration of analytes, specifically sodium ion and potassium ion, in the patient's blood and to communicate the analyte level to the patient essentially instantaneously through a mobile monitor or display screen. In a variation, the device combines the analyte-concentration measuring function with a means for measuring the concentration of glucose in blood, and the blood analyte level and glucose level are displayed to the patient essentially instantaneously. Both the salt level device and the salt level+glucose level device may be further adapted to allow for the salt and glucose level data to be stored in a data storage base so the patient has an historical record of the concentration levels.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: January 17, 2023
    Inventors: Riya Shah, Himanshu Shah
  • Patent number: 11546213
    Abstract: A router architecture that facilitates cloud exchange point routing is disclosed. The architecture relies upon B-nodes to connect branch network to cloud, S-nodes to connect services, and V-nodes to connect cloud to cloud. The nodes can be essentially stateless with node configuration stored outside a router, which facilitates ripping and replacement of nodes. Multiple virtual private clouds can be implemented with respective pluralities of Kubernetes pods and a master Kubernetes cluster. Consumer premises equipment is coupled to a first virtual private cloud that forms a virtual extensible local area network with a second private cloud.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: January 3, 2023
    Assignee: Alkira, Inc.
    Inventors: Himanshu Shah, Atif Khan, Murtuza Attarwala
  • Publication number: 20220407798
    Abstract: Systems and methods for extending Ethernet Virtual Private Network (EVPN) protocols are provided. A Link Aggregation Group (LAG), according to one implementation, includes a plurality of Ethernet Segments (ESs) and a plurality of service ports configured to communicate over the plurality of ESs. The service ports are configured to enable an operator device to access an EVPN to receive Layer 2 (L2) and Layer 3 (L3) Ethernet services. Also, the service ports are configured to enable the operator device to operate with multi-homing functionality to receive the L2 and L3 Ethernet services via redundant paths associated with the plurality of ESs. The services ports are further configured to respond to operator commands, whereby the operator commands include one or more operator commands related to switching among the redundant paths.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 22, 2022
    Inventors: Marc Holness, Peng He, Himanshu Shah, Selvamani Ramasamy
  • Publication number: 20220368629
    Abstract: A node, in a first network, includes circuitry configured to add a label stack to a packet associated with one of a Layer 2 Virtual Private Network (L2VPN) and a Layer 3 Virtual Private Network (L3VPN), wherein the packet is destined for a second network having at least a pair of Border Gateway Protocol-Label Unicast (BGP-LU) Route Reflector (RR) nodes interconnecting the first network, and wherein the label stack includes an anycast Segment Identifier (SID) for the RR nodes, in Segment Routing, and transmit the packet to the second network. The label stack also includes a BGP-LU label for a destination in the second network. Responsive to isolation of one of the RR nodes, a Point of Local Repair (PLR) node in the first network is configured to implement Topology-Independent Loop-Free Alternate (TI-LFA) for the anycast SID.
    Type: Application
    Filed: July 2, 2021
    Publication date: November 17, 2022
    Inventors: Himanshu Shah, Atul Vadera, Jayant Kumar Bhardwaj, Piyush Sharma