Patents by Inventor P. Venkat Rangan

P. Venkat Rangan 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: 6199077
    Abstract: A portal server includes a software agent configured to do summary searches for subscribers based on Internet destinations provided by the subscribers, to retrieve information from such destinations based on pre-programmed site information, and to download the summary information to the subscriber. The destinations and the nature of the information to be retrieved is pre-programmed. There is further a configuration and intitiation interface for a subscriber to set up and start a summary search. In some cases the summary searches are configured for individual clients as templates stored and retrieved at the Internet-connected server. Also in some cases retrieved information is immediately sent to the subscriber, and in other situations such information is saved at the portal to be retrieved by a subscriber at a later time. In preferred embodiments of the invention autologins are accomplished for a subscriber at Internet destinations by use of pre-stored configuration information.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: March 6, 2001
    Assignee: Yodlee.com, Inc.
    Inventors: Suman Kumar Inala, P Venkat Rangan, Ramakrishna Satyavolu
  • Patent number: 6169573
    Abstract: A system and method for hypervideo object tracking in a compressed digital video environment includes a hypervideo authoring system and a hypervideo browser. The hypervideo authoring system permits one or more moving objects in an MPEG compressed video clip to be identified, tracked, refined, edited, and associated with a specified action with a minimum of user intervention. The hypervideo browser allows the MPEG video to be viewed and objects of interest to be selected by a user, thereby hyperlinking to additional information of interest.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: January 2, 2001
    Assignee: HOTV, Inc.
    Inventors: Srihari Sampath-Kumar, P. Venkat Rangan, Kamlesh Talreja, Kenneth J. Goldman
  • Patent number: 6154771
    Abstract: Streaming compressed digital hypervideo received upon a digital communications network is decoded (decompressed) and played in a client-computer-based "video on web VCR" software system. Scene changes, if not previously marked upstream, are automatically detected, and typically twenty-one past scenes are displayed as thumbnail images. Hyperlinks within the main video scene, and/or any thumbnail image, show as hotspots, with text annotations typically appearing upon a cursor "mouse over". All hyperlinks--as are provided and inserted by, inter alia, the upstream network service provider (the "ISP")--may be, and preferably are, full-custom dynamically-resolved to each subscriber/user/viewer ("SUV") upon volitional "click throughs" by the SUV, including retrospectively on past hypervideo scenes as appear within the thumbnail images.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: November 28, 2000
    Assignee: Mediastra, Inc.
    Inventors: P. Venkat Rangan, Vijnan Shastri, Arya Ashwani, Parag Arole
  • Patent number: 6006265
    Abstract: Streaming digital hypervideo including copious embedded hyperlinks is distributed upon a digital communications network from a hypervideo server, normally an Internet Service Provider, to multitudinous client subscribers/users/viewers (client SUVs). Some or all of the client SUVs receive the same hyperlinks at the same place in the streaming hypervideo. Some small fraction of the client SUVs selectively volitionally exercise a fraction of the total hyperlinks, causing an access in the background of the unfolding hypervideo across the digital communications network to yet another server commonly called a "Video On Web server", or "VOW server". The VOW sever interprets each hyperlink request in consideration of (i) the identity of the exercising client SUV and, most commonly, (ii) additional data of a demographic, socioeconomic, credit, viewing preference, security and/or past hyperlinking history nature.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: December 21, 1999
    Assignee: HOTV, Inc.
    Inventors: P. Venkat Rangan, Vijnan Shastri, P. Srihari Sampath-Kumar, Arya Ashwani
  • Patent number: 5592626
    Abstract: A multimedia information delivery network system is disclosed for delivering multimedia programs to a plurality of users at user-selected times. The network includes a wide area transmitter for transmitting the multimedia programs. Additionally, the network includes a plurality of network servers for receiving the programs and for selectively caching the programs for retransmission to downstream network servers and/or directly to one or more users at the user-selected transmission times. A scheduler receives the user-selected transmission times and, in response thereto, establishes a network server path by which the multimedia program is efficiently delivered to each user at the respective user-selected time.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: January 7, 1997
    Assignee: The Regents of the University of California
    Inventors: Christos Papadimitriou, P. Venkat Rangan
  • Patent number: 5583994
    Abstract: A multimedia information delivery network system is disclosed for delivering multimedia programs to a plurality of users at user-selected times. The network includes a wide area transmitter for transmitting the multimedia programs. Additionally, the network includes a plurality of network servers for receiving the programs and for selectively caching the programs for retransmission to downstream network servers and/or directly to one or more users at the user-selected transmission times. A scheduler receives the user-selected transmission times and, in response thereto, establishes a network server path by which the multimedia program is efficiently delivered to each user at the respective user-selected time.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: December 10, 1996
    Assignee: Regents of the University of California
    Inventor: P. Venkat Rangan