Patents by Inventor Sandip Mukerjee

Sandip Mukerjee 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: 6584317
    Abstract: A system and method for concurrently ringing a subscriber's wired and mobile stations, where the wired station is served by a wired telecommunications network and the mobile station is served by a wireless telecommunications network. The call is routed to a network interface point of control from either the wired or wireless networks and the network interface becomes the point of control for the call. The call is initially offered to the mobile station by the network interface point of control, and before the mobile station rings, the call is offered to the wired station so that the wired and mobile stations ring concurrently.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: June 24, 2003
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Sandip Mukerjee, Louis Michael Taff, Richard Zaffino
  • Patent number: 6539223
    Abstract: A mobile telecommunications system includes within a serving system database entries that associate the identifier of a mobile unit, which could be a cellular telephone or a personal communications service (PCS) device, with a plurality of directory numbers. The mobile unit identifier may be a mobile identification number (MIN) or international mobile service identifier (IMSI), for example. The system may store this association within a home location register (HLR), within a mobile switching center (MSC), or in both. In the process of terminating a telephone call the system employs supplemental information to determine which of the plurality of directory numbers associated with the mobile unit's mobile identifier is to be employed for the purposes of the telephone call being terminated. The supplemental information may be the current location of the mobile unit, for example.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: March 25, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Ramakrishna Bijanki, Perminder Dhawan, Bijan Farhang, Patrick Li, John MacNamara, Sandip Mukerjee, Pradeep Sharma, Kenneth Shelhamer
  • Publication number: 20020160780
    Abstract: A system and method for concurrently ringing a subscriber's wired and mobile stations, where the wired station is served by a wired telecommunications network and the mobile station is served by a wireless telecommunications network. The call is routed to a network interface point of control from either the wired or wireless networks and the network interface becomes the point of control for the call. The call is initially offered to the mobile station by the network interface point of control, and before the mobile station rings, the call is offered to the wired station so that the wired and mobile stations ring concurrently.
    Type: Application
    Filed: April 15, 2002
    Publication date: October 31, 2002
    Applicant: AT&T Wireless Services, Inc.
    Inventors: Sandip Mukerjee, Louis Michael Taff, Richard Zaffino
  • Patent number: 6405041
    Abstract: A system and method for concurrently ringing a subscriber's wired and mobile stations, where the wired station is served by a wired telecommunications network and the mobile station is served by a wireless telecommunications network. The call is routed to a network interface point of control from either the wired or wireless networks and the network interface becomes the point of control for the call. The call is initially offered to the mobile station by the network interface point of control, and before the mobile station rings, the call is offered to the wired station so that the wired and mobile stations ring concurrently.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: June 11, 2002
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Sandip Mukerjee, Louis Michael Taff, Richard Zaffino
  • Patent number: 6169891
    Abstract: The airtime charge for a receiving wireless telephone station is assigned to an account that is not associated with the wireless telephone station receiving the call. For example, for a telephone call placed from a conventional home wired telephone station to a wireless telephone station, the airtime charge for the receiving wireless telephone station of the call is billed to the account associated with the home wired telephone station.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: January 2, 2001
    Assignee: AT&T Corp.
    Inventors: Peter C. Gorham, Michael Edward McCarthy, Sandip Mukerjee, James A. Tavares
  • Patent number: 5513242
    Abstract: Unnecessary expenses associated with exchanging data with wireless data stations that have become unavailable are avoided, in accordance with the principles of the invention, by a) transmitting the data to be transmitted to a store and forward unit; b) marking as unavailable a wireless data station to which the store and forward unit could not successfully complete the data transmission; c) waiting for the wireless data station to register, i.e., signal its availability to receive data transmissions; and d) transmitting the data from the store and forward unit to the data station once a registration is received from the wireless data station. Optionally, any data transfers to the wireless data station during this waiting period are queued at the store and forward data unit and no attempt is made to contact the wireless data station over the wireless service provider's network.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: April 30, 1996
    Assignee: AT&T Corp.
    Inventors: Sandip Mukerjee, Ralph J. Snyder
  • Patent number: 5513247
    Abstract: The lack of uniformity for accessing wireless carriers to reach roaming wireless telephones prevents nationwide wireless telephone service from being provided in a seamless manner by an automated system that accesses the roamer access ports to connect a caller to a wireless telephone station in a manner such that the roaming nature of the called wireless telephone station is transparent to the caller. This problem is overcome, by a method for placing a telephone call to a wireless telephone station, method including the steps of: a) storing in a data base an association between respective (i) roamer access ports, (ii) mobile switching centers and (iii) one of a predetermined set of instructions, i.e.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: April 30, 1996
    Assignee: AT&T Corp.
    Inventors: Sandip Mukerjee, Ralph Utano
  • Patent number: 5479484
    Abstract: The lack of uniformity for accessing wireless carriers to reach roaming wireless telephones prevents nationwide wireless telephone service from being provided in a seamless manner by an automated system that accesses the roamer access ports to connect a caller to a wireless telephone station in a manner such that the roaming nature of the called wireless telephone station is transparent to the caller. This problem is overcome, by a method for placing a telephone call to a wireless telephone station, method including the steps of: a) storing in a data base an association between respective (i) roamer access ports, (ii) mobile switching centers and (iii) one of a predetermined set of instructions, i.e.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: December 26, 1995
    Assignee: AT&T Corp.
    Inventors: Sandip Mukerjee, Ralph Utano