Patents by Inventor Senthil Viswanathan

Senthil Viswanathan 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).

  • Efficient modification of packet filters in a wireless communication network
    Patent number: 8332926
    Abstract: Techniques for modifying packet filters in a wireless communication network are described. In one scheme, packet filters may be performed with multiple operations, if needed. The operation(s) to be performed and the order of performing the operation(s) may be dependent on the number of existing packet filters to be replaced (N) and the number of new packet filters (M). If N=M, then N packet filters in a traffic filter template may be replaced with a single operation. If N>M, then M packet filters in the traffic filter template may be replaced first, and N?M packet filters may be deleted from the traffic filter template next. If N<M, then M?N new packet filters may be added to the traffic filter template first, and N packet filters in the traffic filter template may be replaced next. In another scheme, packet filters are modified with a single operation using dummy packet filters, if needed.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: December 11, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Uppinder Singh Babbar, Rashmi Char, Senthil Viswanathan, Srinivas Reddy Mudireddy
  • Avoiding PPP time outs during IPCP negotiations
    Patent number: 8086748
    Abstract: Methods and apparatus are presented for extending the protocol synchronization period between a PPP client and a PPP server, wherein the PPP server is located on a wireless communication device. In one aspect, the PPP server generates and sends an IPCP Configure-Nak message to the PPP client whenever the PPP client sends an IPCP Configure-Request message, wherein an arbitrary non-zero value is deliberately sent as the primary DNS address, the secondary DNS address, the primary WINS address, or the secondary WINS address is sent in the IPCP Configure-Nak message. The IP address is deliberately omitted from the IPCP Configure-Nak message.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: December 27, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Idreas Mir, Senthil Viswanathan, Marcello Lioy
  • AVOIDING PPP TIME OUTS DURING IPCP NEGOTIATIONS
    Publication number: 20090040988
    Abstract: Methods and apparatus are presented for extending the protocol synchronization period between a PPP client and a PPP server, wherein the PPP server is located on a wireless communication device. In one aspect, the PPP server generates and sends an IPCP Configure-Nak message to the PPP client whenever the PPP client sends an IPCP Configure-Request message, wherein an arbitrary non-zero value is deliberately sent as the primary DNS address, the secondary DNS address, the primary WINS address, or the secondary WINS address is sent in the IPCP Configure-Nak message. The IP address is deliberately omitted from the IPCP Configure-Nak message.
    Type: Application
    Filed: June 20, 2008
    Publication date: February 12, 2009
    Applicant: QUALCOMM Incorporated
    Inventors: Idreas Mir, Senthil Viswanathan, Marcello Lioy, Mustafa Saglam
  • Avoiding PPP time-outs during IPCP negotiations
    Patent number: 7412528
    Abstract: Methods and apparatus are presented for extending the protocol synchronization period between a PPP client and a PPP server, wherein the PPP server is located on a wireless communication device. In one aspect, the PPP server generates and sends an IPCP Configure-Nak message to the PPP client whenever the PPP client sends an IPCP Configure-Request message, wherein an arbitrary non-zero value is deliberately sent as the primary DNS address, the secondary DNS address, the primary WINS address, or the secondary WINS address is sent in the IPCP Configure-Nak message. The IP address is deliberately omitted from the IPCP Configure-Nak message.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 12, 2008
    Assignee: QUALCOMM, Incorporated
    Inventors: Idreas Mir, Senthil Viswanathan, Marcello Lioy
  • Efficient modification of packet filters in a wireless communication network
    Publication number: 20070266430
    Abstract: Techniques for modifying packet filters in a wireless communication network are described. In one scheme, packet filters may be performed with multiple operations, if needed. The operation(s) to be performed and the order of performing the operation(s) may be dependent on the number of existing packet filters to be replaced (N) and the number of new packet filters (M). If N=M, then N packet filters in a traffic filter template may be replaced with a single operation. If N>M, then M packet filters in the traffic filter template may be replaced first, and N?M packet filters may be deleted from the traffic filter template next. If N<M , then M?N new packet filters may be added to the traffic filter template first, and N packet filters in the traffic filter template may be replaced next. In another scheme, packet filters are modified with a single operation using dummy packet filters, if needed.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 15, 2007
    Inventors: Uppinder Babbar, Rashmi Char, Senthil Viswanathan, Srinivas Mudireddy
  • Avoiding PPP time-outs during IPCP negotiations
    Publication number: 20040132473
    Abstract: Methods and apparatus are presented for extending the protocol synchronization period between a PPP client and a PPP server, wherein the PPP server is located on a wireless communication device. In one aspect, the PPP server generates and sends an IPCP Configure-Nak message to the PPP client whenever the PPP client sends an IPCP Configure-Request message, wherein an arbitrary non-zero value is deliberately sent as the primary DNS address, the secondary DNS address, the primary WINS address, or the secondary WINS address is sent in the IPCP Configure-Nak message. The IP address is deliberately omitted from the IPCP Configure-Nak message.
    Type: Application
    Filed: August 26, 2003
    Publication date: July 8, 2004
    Inventors: Idreas Mir, Senthil Viswanathan, Marcello Lioy