Patents by Inventor Sharath Narahari

Sharath Narahari 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).

  • Publication number: 20080298468
    Abstract: Systems, devices, processors, and methods are described for tagging the reliability of received data. A frame of data is received in a digitized version of a wireless signal may be received and stored in a frame memory table. Errors within the stored portion of the frame may be searched for by accessing and processing the data from the frame memory table. In a second memory table, a memory location corresponding to a region of the first memory table may be tagged based on the search. Rows to be corrected may be identified based on the tag state for their corresponding region.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 4, 2008
    Applicant: MediaPhy Corporation
    Inventors: Sharath Narahari, Ramesh Duvvuru, Yu-Wen (Evan) Chang, Mohammad R. Moradi
  • Patent number: 7324539
    Abstract: A method and apparatus for processing channelized and unchannelized data within a signal are described. In one embodiment, a method comprises receiving in a network element, data packets within a number of channels, wherein each of the number of channels are channelized or unchannelized, processing, in a protocol engine within the network element, the data packets within the number of channels that are channelized, and processing, in the protocol engine within the network element, the data packets within the number of channels that are unchannelized.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: January 29, 2008
    Assignee: Redback Networks Inc.
    Inventors: Ramesh Duvvuru, Felix Chow, Ricky See, Sharath Narahari, David Stiles
  • Patent number: 7243253
    Abstract: A method and apparatus for enabling repeated switching of a cross-connect and a timing source in a network element through the use of a phase adjuster. In one embodiment, a traffic card includes an aligner to adjust the occupancy of the data in two ingress FIFOs to synchronize their occupancy. In addition, the traffic card includes a clock control logic, including a phase adjuster, to adjust the phase of clock signals driving the two ingress FIFOs to avoid an underflow or overflow.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: July 10, 2007
    Assignee: Redback Networks Inc.
    Inventors: Michael McClary, Sharath Narahari
  • Patent number: 6959008
    Abstract: A method and apparatus for alignment of TDM-based signals for packet transmission using framed and unframed operations are described. In an embodiment, a line card in a network element includes a deframer unit that receives a Time Division Multiplexing (TDM) signal. The TDM signal includes a payload and overhead data. The deframer generates frame alignment data based on the overhead data. The line card also includes a packet engine unit coupled to the deframer unit. The packet engine unit receives the payload, the overhead data and the frame alignment data and generates a number of packet engine packets. The packet engine packets represent a frame within the TDM signal such that the packet engine packets include the payload, the overhead data and the frame alignment data. Additionally, the line card includes packet processor coupled to the deframer unit. The packet processor receives the packet engine packets and generates network packets based on the packet engine packets.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: October 25, 2005
    Assignee: Redback Networks Inc.
    Inventors: Michael McClary, Sharath Narahari, David R. Stiles
  • Patent number: 6950446
    Abstract: A method and apparatus for simultaneously sync hunting signals is described. In one embodiment of the invention, a computer implemented method comprises initializing a first and second subset of a set of per-alignment state machines, receiving a first and second signal, and simultaneously sync hunting the first signal with the first subset of the set of per-alignment state machines and the second signal with the second subset of the set of per-alignment state machines.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: September 27, 2005
    Assignee: Redback Networks Inc.
    Inventors: Michael McClary, Sharath Narahari, Andrew Tao
  • Patent number: 6941381
    Abstract: A method and apparatus for sync hunting signals is described. In one embodiment of the invention, a computer implemented method comprises receiving a signal and synchronization hunting concurrently for a first and second frame alignment pattern for a first and second alignment candidates.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: September 6, 2005
    Assignee: Redback Networks Inc.
    Inventors: Michael McClary, Sharath Narahari, Andrew Tao
  • Publication number: 20040073714
    Abstract: A method and apparatus for deframing signals is described. In one embodiment of the invention, a computer implemented method comprises receiving a plurality of signals at a first clock rate, synchronizing the plurality of signals to a second clock rate, and deframing the plurality of signals.
    Type: Application
    Filed: April 16, 2001
    Publication date: April 15, 2004
    Inventors: Michael McClary, Sharath Narahari, Andrew Tao
  • Publication number: 20030023760
    Abstract: A method and apparatus for sync hunting signals is described. In one embodiment of the invention, a computer implemented method comprises receiving a signal and synchronization hunting concurrently for a first and second frame alignment pattern for a first and second alignment candidates.
    Type: Application
    Filed: April 16, 2001
    Publication date: January 30, 2003
    Inventors: Michael McClary, Sharath Narahari, Andrew Tao
  • Publication number: 20030023668
    Abstract: A method and apparatus for simultaneously sync hunting signals is described. In one embodiment of the invention, a computer implemented method comprises initializing a first and second subset of a set of per-alignment state machines, receiving a first and second signal, and simultaneously sync hunting the first signal with the first subset of the set of per-alignment state machines and the second signal with the second subset of the set of per-alignment state machines.
    Type: Application
    Filed: April 16, 2001
    Publication date: January 30, 2003
    Inventors: Michael McClary, Sharath Narahari, Andrew Tao
  • Publication number: 20030016699
    Abstract: A method and apparatus for alignment of TDM-based signals for packet transmission using framed and unframed operations are described. In an embodiment, a line card in a network element includes a deframer unit that receives a Time Division Multiplexing (TDM) signal. The TDM signal includes a payload and overhead data The deframer generates frame alignment data based on the overhead data. The line card also includes a packet engine unit coupled to the deframer unit. The packet engine unit receives the payload, the overhead data and the frame alignment data and generates a number of packet engine packets. The packet engine packets represent a frame within the TDM signal such that the packet engine packets include the payload, the overhead data and the frame alignment data. Additionally, the line card includes a packet processor coupled to the deframer unit. The packet processor receives the packet engine packets and generates network packets based on the packet engine packets.
    Type: Application
    Filed: April 17, 2001
    Publication date: January 23, 2003
    Inventors: Michael McClary, Sharath Narahari, David R. Stiles