Patents by Inventor Muhammad S. Sarwar

Muhammad S. Sarwar 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: 11722271
    Abstract: According to an aspect of an embodiment, operations may include receiving a first Ethernet signal having a first data rate less than a second data rate, the second data rate being a ZR data rate. The operations may also include dividing the first Ethernet signal into a plurality of first-signal sub-signals that each have a third data rate that is less than the first data rate. Moreover, the operations may include generating a second Ethernet signal having the second data rate, the generating of the second Ethernet signal being based on the plurality of first-signal sub-signals such that the second Ethernet signal includes the plurality of first-signal sub-signals. Further, the operations may include providing the second Ethernet signal to a ZR network such that the second Ethernet signal is a ZR signal.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 8, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Catherine Yuan, Muhammad S. Sarwar, Malleswaraprasad Sunkara, Kentaro Nakamura, Vijay Khopade, Albert Smith, Calvin Wan, Dave Howell, Jeffrey Holt, Sanjay Gera
  • Publication number: 20230037189
    Abstract: According to an aspect of an embodiment, operations may include receiving a first Ethernet signal having a first data rate less than a second data rate, the second data rate being a ZR data rate. The operations may also include dividing the first Ethernet signal into a plurality of first-signal sub-signals that each have a third data rate that is less than the first data rate. Moreover, the operations may include generating a second Ethernet signal having the second data rate, the generating of the second Ethernet signal being based on the plurality of first-signal sub-signals such that the second Ethernet signal includes the plurality of first-signal sub-signals. Further, the operations may include providing the second Ethernet signal to a ZR network such that the second Ethernet signal is a ZR signal.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 2, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Catherine YUAN, Muhammad S. SARWAR, Malleswaraprasad SUNKARA, Kentaro NAKAMURA, Vijay KHOPADE, Albert SMITH, Calvin WAN, Dave HOWELL, Jeffrey HOLT, Sanjay GERA
  • Publication number: 20220094438
    Abstract: Disclosed methods for transmitting bi-directional optical signal traffic over a single fiber include generating, by transponders at a first location, optical signals having wavelengths within a first wavelength band, converting the generated optical signals to optical signals having wavelengths within a second wavelength band for transmission to a second location, receiving, at the first location from the second location over a single fiber cable between the first and second locations, optical signal traffic comprising optical signals in the first wavelength band, and providing the received optical traffic to the first transponders. The methods also include merging, onto the single fiber cable by a Y-cable at the first location, the optical signal traffic converted for transmission and the optical signal traffic received from the second location.
    Type: Application
    Filed: September 22, 2020
    Publication date: March 24, 2022
    Inventors: Francois Georges Joseph Moore, Muhammad S. Sarwar
  • Patent number: 9166868
    Abstract: In accordance with embodiments of the disclosure, a method may include communicating, via an inter-card communication channel, local link status information regarding at least one local physical port resident on a first network interface, wherein the at least one local physical port is a member port of a link aggregation group, to one or more other network interfaces, other than the first network interface, having member ports of the link aggregation group. The method may also include receiving, via the inter-card communications channel, non-local link status information regarding at least one non-local physical port resident on the one or more other network interfaces, wherein the at least one non-local physical port is a member port of the link aggregation group. The method may further include designating a link status of the at least one local physical port based on the local link status information and the non-local link status information.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 20, 2015
    Assignee: Fujitsu Limited
    Inventors: Muhammad S. Sarwar, Zanjun Lu, Zigmunds Andis Putnins, Jaya Sarup
  • Patent number: 8837936
    Abstract: In accordance with a particular embodiment of the present disclosure, a network element may include a network-side interface configured to communicatively couple to a network and a controller communicatively coupled to the network-side interface. The controller may be configured to periodically receive one or more messages indicative of a delay for each of a plurality of paths for a network flow between the network element and a second network element, periodically compare the delays for the plurality of paths, and select a path for a network flow from the plurality of paths based on the delays.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: September 16, 2014
    Assignee: Fujitsu Limited
    Inventors: Muhammad S. Sarwar, Zigmunds Andis Putnins, Jaya Sarup, Zanjun Lu
  • Publication number: 20130343747
    Abstract: In accordance with a particular embodiment of the present disclosure, a network element may include a network-side interface configured to communicatively couple to a network and a controller communicatively coupled to the network-side interface. The controller may be configured to periodically receive one or more messages indicative of a delay for each of a plurality of paths for a network flow between the network element and a second network element, periodically compare the delays for the plurality of paths, and select a path for a network flow from the plurality of paths based on the delays.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Muhammad S. Sarwar, Zigmunds Andis Putnins, Jaya Sarup, Zanjun Lu
  • Publication number: 20130148512
    Abstract: In accordance with embodiments of the disclosure, a method may include communicating, via an inter-card communication channel, local link status information regarding at least one local physical port resident on a first network interface, wherein the at least one local physical port is a member port of a link aggregation group, to one or more other network interfaces, other than the first network interface, having member ports of the link aggregation group. The method may also include receiving, via the inter-card communications channel, non-local link status information regarding at least one non-local physical port resident on the one or more other network interfaces, wherein the at least one non-local physical port is a member port of the link aggregation group. The method may further include designating a link status of the at least one local physical port based on the local link status information and the non-local link status information.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Applicant: FUJITSU NETWORK COMMUNICATIONS, INC.
    Inventors: Muhammad S. Sarwar, Zanjun Lu, Zigmunds Andis Putnins, Jaya Sarup