Patents by Inventor Kalyan K. Basu

Kalyan K. Basu 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: 6967971
    Abstract: An asynchronous transfer mode infrastructure is integrated with the communications network. The asynchronous transfer mode infrastructure is composed of an asynchronous transfer mode fabric and asynchronous transfer mode gateway. Wireless and wireline data are linked to the communications network via the asynchronous transfer mode infrastructure, such that all wireless and wireline data transactions within the communications network are processed independently of any switching devices present within the communications network. Wireless and wireline data is transmitted to and from the communications network via a network access function that allows wireless and wireline data to flow to and from the communications network. The wireless and wireline data is converted within the network access function in response to transmittal of the wireless and wireline data to the network access function.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: November 22, 2005
    Assignee: Nortel Networks Limited
    Inventors: Stephen B. Elliott, Kalyan K. Basu, Dave Lauson, Jerry Mizell, Stone Tseng
  • Patent number: 6751459
    Abstract: A method and apparatus for updating information in a personal mobility database server with information concerning a user's nomadicity. When the user travels from one place to another, the user registers with PMDNS server at an IP port for computing communications. PMDNS takes user's terminal personalization, together with usage profile, session characteristics into account to map a party's identifier to a terminal's identifier. The IP address of the user's current location is used in concert with the terminal's identifier, which is itself an IP address, to route incoming computing communications connection requests to the current location of the user. This information will be returned by the PMDNS directory server to the access network for the setup of the communications.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: June 15, 2004
    Assignee: Nortel Networks Limited
    Inventors: Hee C. Lee, Kalyan K. Basu, Fred Homayoun
  • Patent number: 6741853
    Abstract: A method for providing information to devices in a format preferable to a device type. This is achieved by receiving an information request, detecting the device type from which the information request originated, adapting the content for presentation on the device type, and presenting the information to the device. By the use of this invention, telecommunications users are presented information in a format suitable to the device being used.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 25, 2004
    Assignee: Nortel Networks Limited
    Inventors: Hua Jiang, Hee C. Lee, Kalyan K. Basu, Chang Yu
  • Patent number: 6330451
    Abstract: A wireless communication system selectively delays serviced data communications to produce a desired level of voice communications capacity. The system first determines whether the wireless communication system has sufficient voice communications capacity. If it is determined that the wireless communication system has insufficient voice communications capacity, the system determines a data communications delay that is required to provide sufficient voice communications capacity. Based upon its determination, the system then selectively delays some or all of the data communications to create the sufficient voice communications capacity. In one operation, one data communication serviced by the wireless communication system is selectively delayed to create the sufficient voice communications capacity. In another operation, a plurality of data communications serviced by the wireless communication system are selectively delayed to create the sufficient voice communications capacity.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: December 11, 2001
    Assignee: Nortel Networks Limited
    Inventors: Sanjoy K. Sen, Jastinder Jawanda, Kalyan K. Basu, Giri Giridharagopal, Naveen K. Kakani, Sajal Das
  • Patent number: 6161008
    Abstract: A personal mobility system determines a terminal address corresponding to a called user based upon a personal identifier of the called user. The personal mobility system operates in conjunction with a plurality of heterogeneous networks to provide the terminal address corresponding to the called user, independent of the particular network within which the called user currently operates. The personal mobility system includes a personal mobility user application and a personal mobility server application. The personal mobility user application receives a request from a calling user, the request including the personal identifier of a called user. The personal mobility server application couples to the personal mobility user application and includes a plurality of user records. Each user record is respective to a user and is indexed by a respective personal identifier. Further, each user record includes a plurality of terminal records with each of the terminal records including a respective terminal address.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: December 12, 2000
    Assignee: Nortel Networks Limited
    Inventors: Hee C. Lee, Kalyan K. Basu, Shun Hua Zhou, Wei Yuan, Hua Jiang, Edith Yeh, Surnjani Djoko
  • Patent number: 6097733
    Abstract: A communication system provides wireless voice and multimedia communications and includes a base station, a plurality of wireless mobile units and a bandwidth allocator. The base station provides wireless coverage throughout a service area and has a bandwidth for providing the wireless coverage. The plurality of wireless mobile units operate within the service area and communicate with the base station to transmit and receive both voice communications and multimedia communications. The bandwidth allocator selectively allocates the bandwidth in response to wireless multimedia communication requirements to achieve a minimum transmission rate for multimedia communications. The communication system may include a plurality of channels, each having a channel bandwidth with the bandwidth allocator selectively allocating the channels in response to the multimedia communication requirements to achieve the minimum transmission rate.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: August 1, 2000
    Assignee: Nortel Networks Corporation
    Inventors: Kalyan K. Basu, Carlos A. Molina