Patents by Inventor Paramdeep S. Sahni

Paramdeep S. Sahni 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: 5742674
    Abstract: A system and method are disclosed for providing an automatic call-back when a calling party encounters a ring-no-answer condition upon calling a called party. An exemplary system includes: a first originating switch node (OSN) coupled to a first originating telephone call location corresponding to a calling party and, a terminating switch node (TSN) coupled to a destination telephone call location corresponding to a called party; a database coupled to the TSN for storing the called party's times of calling activity; a processor coupled to the TSN and to the database for processing the times of calling activity to determine a best time to call (BTTC) the called party (wherein the BTTC comprises a best exact time and/or a window of time) and providing the TSN with the BTTC; a signaling network for routing the BTTC to the OSN; and an adjunct coupled to the OSN for receiving the calling party's automatic call-back request and initiating an automatic call back to the calling party at the BTTC the called party.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: April 21, 1998
    Assignee: AT&T Corp.
    Inventors: Ajay K. Jain, Paramdeep S. Sahni
  • Patent number: 5559888
    Abstract: A secure information retrieval system comprising three levels of confidential access to a database, wherein the first level is stored and transmitted in an unencrypted form, the second level is stored in an encrypted form but transmitted in an unencrypted form, and the third level is stored and transmitted in an encrypted form.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: September 24, 1996
    Assignee: Lucent Technologies Inc.
    Inventors: Ajay Jain, Paramdeep S. Sahni, Alok K. Gupta
  • Patent number: 5506890
    Abstract: A method and system for industry and group-specific calling within a telecommunication system. The method of the present invention includes the steps of receiving, in a carrier network, a call initiated by dialing a group number from a caller terminal; accessing a database in the carrier network to determine an announcement corresponding to the group number; providing the announcement to the caller terminal to prompt a caller to select one of the group members associated with the dialed group number; interpreting a selection command received from the caller to determine a member number of a selected group member; establishing a connection between the network and a member terminal corresponding to the selected member number; and connecting the call from the caller terminal to the selected member terminal. The caller may terminate the connection between the network and the member terminal, and select a connection to other group members, without dialing any additional numbers.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: April 9, 1996
    Assignee: AT&T Corp.
    Inventors: Alok K. Gupta, Ajay Jain, Shri P. Jain, Paramdeep S. Sahni
  • Patent number: 5463685
    Abstract: An outbound call management capability is provided for a public switched telephone network by a network based outbound call management (NOCM) complex, which can be accessed by all subscribers to the public switched network through one or more central offices in the network. A predetermined list of telephone numbers is stored in a data base in the NOCM complex for each subscriber who uses the NOCM services. The telephone numbers are automatically dialed at one or more predetermined scheduled times. When one of the dialed telephones is answered, the NOCM complex sets up a connection through the public switched telephone network between the called party and one or more attendants at one or more telephone numbers specified by a customer of the NOCM services.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: October 31, 1995
    Assignee: AT&T IPM Corp.
    Inventors: Barbara I. Gaechter, Paramdeep S. Sahni, I. Grace Tseng
  • Patent number: 5357564
    Abstract: A unified and systematic approach is taken both to design of a virtual communications network within a carrier's telecommunications network, and to design the screening filters provided in the VCN data base which control the admission of calls to the network. For this purpose, telecommunications traffic information that is relevant for both the design of the VCN architecture as well as for development of the screening filters is aggregated and applied both to a network design tool that is used to generate the customer's virtual network configuration, as well as to a screening filter generator (SFG). The traffic information may include, for example, traffic data contained in network and customer premises equipment call detail records and billing data.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: October 18, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Alok K. Gupta, Monowar Hossain, Paramdeep S. Sahni
  • Patent number: 5329581
    Abstract: A system for completing a series of calls from a calling party to a plurality of called parties served by a common terminating switch and located in the same general geographic area, is implemented by a) establishing a first communication path from the calling party to the terminating switch b) establishing a second communication path from the terminating switch to the the called party using routing information received from the calling party regarding the called party c) bridging those two communication paths to form a complete connection from the calling party to the called party d) preserving the first communication path and reusing it to complete all the calls in the series.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: July 12, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Albert Friedes, Barbara I. Gaechter, Paramdeep S. Sahni, Susan M. Zoccolillo
  • Patent number: 5311583
    Abstract: A telephone call initiated from a first network and directed to a second network at which network resources are temporarily unavailable to route and/or switch that call, is completed by a) estimating the anticipated time before these resources can become available, b) offering the caller the option of being called back, based on that estimation, c) calling back the caller when network resources are expected to become available, d) establishing a connection from the first network to the called party at the second network, and e) merging the two calls.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: May 10, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Albert Friedes, Diane R. Leighton, Paramdeep S. Sahni, Walter P. Zahray
  • Patent number: 5282243
    Abstract: In order to enable an "800" telephone number business subscriber to identify customers, whose incoming telephone calls were blocked, the Automatic Number Identification (ANI) of these calling customer is automatically recorded within the telecommunications network for later access by the business subscriber.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: January 25, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Hassan Dabbaghi, Robert Finberg, Albert Friedes, Lisa C. Giulianelli, Angela R. Gore, Nadine Grasty, Susan E. Grove, Carlos Perea, Paramdeep S. Sahni, Susan M. Zoccolillo
  • Patent number: 5184345
    Abstract: An enhanced "800" service automatically provides a second communications path between a customer and a business in order to provide additional product information, such as video information, to the customer. For example, upon receipt of a customer telephone call on a B-channel of an ISDN facility, premise switching equipment, of the business, automatically receives the customer's network address. This address is used to automatically setup the second communications path to the customer.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: February 2, 1993
    Assignee: AT&T Bell Laboratories
    Inventor: Paramdeep S. Sahni
  • Patent number: 5018191
    Abstract: This invention relates to methods of establishing facsimile (fax) connections. When it is determined that a call is a fax call, a fax indicator is sent with Common Channel Signaling (CCS) messages for that call. If a call with a fax indicator is received in a destination switching office, then the destination office checks to see if the called number is a fax number; if not, translation is made to find the number of a fax station for serving fax calls to the called number, and the call is completed to that fax station. Fax calls may be recognized by a fax class mark in an originating message from an Integrated Services Digital Network (ISDN) line or a dialed prefix such as #, #3, or an alternative common carrier code (10XXX) from an ordinary line.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: May 21, 1991
    Assignee: AT&T Bell Laboratories
    Inventors: Nancy A. Catron, Richard J. Famulare, Joseph V. Fodale, Karrie J. Hanson, Robert A. Koch, Ronald E. Large, Paramdeep S. Sahni, Alan I. Schwartz, Susan M. Zoccolillo