Patents by Inventor Rohit Verma

Rohit Verma 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: 20050229089
    Abstract: A memory controller includes a write data module to write user data, parity information, and error correction information in a memory. The memory controller includes a read data module to read the user data and parity information, determine whether there is error in the user data based on the parity information, read the error correction information if there is error as determined based on the parity information.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 13, 2005
    Inventors: Alpesh Oza, Miguel Guerrero, Rohit Verma
  • Publication number: 20050138276
    Abstract: The inventive subject matter provides various apparatus and methods to perform high-speed memory read accesses on dynamic random access memories (“DRAMs”) for read-intensive memory applications. In an embodiment, at least one input/output (“I/O”) channel of a memory controller is coupled to a pair of DRAM chips via a common address/control bus and via two independent data busses. Each DRAM chip may include multiple internal memory banks. In an embodiment, identical data is stored in each of the DRAM banks controlled by a given channel. In another embodiment, data is substantially uniformly distributed in the DRAM banks controlled by a given channel, and read accesses are uniformly distributed to all of such banks. Embodiments may achieve 100% read utilization of the I/O channel by overlapping read accesses from alternate banks from the DRAM pair.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Inventors: Muraleedhara Navada, Rohit Verma, Miguel Guerrero
  • Publication number: 20030224792
    Abstract: A method and system are shown for handing off a communication stream between a mobile node and a communication endpoint from a first connection initiator to a second connection initiator while maintaining call state for the communication stream. The first connection initiator establishes a first connection to the communication endpoint in response to receiving a first connection request from the mobile node that includes a client identifier value for the mobile node. When the first connection initiator detects loss of communication with the mobile node, it sends a call-disconnect-notify (CDN) message having a cause code set to a handoff value to the connection endpoint. The connection endpoint, in response to the CDN message, stores call information for the first connection along with the mobile node's client identifier value.
    Type: Application
    Filed: January 15, 2003
    Publication date: December 4, 2003
    Applicant: 3Com Corporation
    Inventors: Rohit Verma, Janakiraman Senthilnathan
  • Patent number: 6654792
    Abstract: A system and method are shown for multiple network devices to operate as a single logical entity for serving tunnel connections. A cluster master device is connected to a multiple network devices through a local area network (LAN). The cluster master device is also connected to a wide area network (WAN) and has a master address that is unique on the WAN. The cluster master device receives a tunnel connection set-up request (SCCRQ) from the WAN that is addressed to the master address. The cluster master device selects one of the multiple network devices and forwards the SCCRQ message over the LAN to the selected network device. The selected network device selects a tunnel identification number that is unique for the tunnel connection on the selected network device and places the tunnel identification number into a source tunnel identification field of a connection set-up reply (SCCRP).
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: November 25, 2003
    Assignee: 3Com Corporation
    Inventors: Rohit Verma, Janakiraman Senthilnathan
  • Patent number: 6614809
    Abstract: A system and method are shown for establishing tunnel connections across multiple networks of differing types. A tunnel media translator device is connected to both a first and second network of different types. The translator receives a tunnel connection set-up request (SCCRQ) from a tunnel initiator on the first network. The translator uses the value from a host name field of the SCCRQ to obtain an address for a tunnel endpoint on the second network, through the use of either pre-configured static tables or a host name resolution service. The translator creates a dynamic table entry that contains the address and tunnel identifier value for the tunnel initiator from the SCCRQ message and the address of the tunnel endpoint obtained from resolving the host name. The translator inserts the address for the tunnel endpoint into a destination address field of the SCCRQ and its own address on the second network into a source address field of the SCCRQ and re-transmits the SCCRQ onto the second network.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: September 2, 2003
    Assignee: 3Com Corporation
    Inventors: Rohit Verma, Janakiraman Senthilnathan, Madhvi Verma
  • Patent number: 6522880
    Abstract: A method and system are shown for handing off a communication stream between a mobile node and a communication endpoint from a first connection initiator to a second connection initiator while maintaining call state for the communication stream. The first connection initiator establishes a first connection to the communication endpoint in response to receiving a first connection request from the mobile node that includes a client identifier value for the mobile node. When the first connection initiator detects loss of communication with the mobile node, it sends a call-disconnect-notify (CDN) message having a cause code set to a handoff value to the connection endpoint. The connection endpoint, in response to the CDN message, stores call information for the first connection along with the mobile node's client identifier value.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: February 18, 2003
    Assignee: 3Com Corporation
    Inventors: Rohit Verma, Janakiraman Senthilnathan