Patents by Inventor Chaitali Sengupta

Chaitali Sengupta 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).

  • Publication number: 20140310386
    Abstract: Embodiments of the present disclosure include techniques for optimization on downloading/streaming activities of media and/or other files (e.g., on a local client, or a local proxy on a mobile device). An example of such downloading/streaming is a user accessing media content including video and/or audio content using a mobile device such as a smart phone, a tablet, or a “phablet,” etc.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 16, 2014
    Applicant: SEVEN NETWORKS, INC.
    Inventors: Suresh Srinivasan, Yuan Kang Lee, Chaitali Sengupta
  • Patent number: 8761081
    Abstract: A method for performing a cell search routine commences by using the Synchronization Channel's (SCH) Primary Synchronization Code (PSC) to acquire slot synchronization to a cell (402). This step will collect a number of hypotheses for frame timing. The method then uses a searcher algorithm such as a sequential dwell searcher that can quickly reject all of the wrong hypotheses gathered in the slot synchronization step, and determine the best hypotheses (404). This cell search routine leads to faster cell acquisition times as compared to some prior art techniques. A receiver (502) that includes a cell searcher (504) that performs the method mentioned above is also described.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: June 24, 2014
    Assignee: Texas Instuments Incorporated
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Publication number: 20130229976
    Abstract: Mobile devices which hand over connectivity from one network connection to another network connection without interruption in application data flow and methods therefor are disclosed. One embodiment further includes, a system for managing handover from a first wireless connection to a second wireless connection for applications, the system including, a network interface operable to communicate with the first wireless network and the second wireless network, wherein the network interface is operable to receive first data from a first wireless network and receive second data for the application from a second wireless network and generate a continuous data flow for applications when handover from the first wireless network to the second wireless network occurs.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 5, 2013
    Applicant: SEVEN NETWORKS, INC.
    Inventors: Suresh Srinivasan, Yuan Kang Lee, Chaitali Sengupta
  • Publication number: 20130229270
    Abstract: System and method of providing data to a mobile application accessible at a mobile device via different network connections without interruption are disclosed. The method, which may be implemented on a system includes, receiving data for the mobile application over a network connection different from a first network connection, and/or providing the data received over the network connection including any other data received from the first network connection, to the mobile application in a manner that is without interruption in data flow. The data is provided to the mobile application without interruption even when connections to the different network connections require change in IP addresses.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 5, 2013
    Applicant: SEVEN NETWORKS, INC.
    Inventors: Suresh Srinivasan, Yuan Kang Lee, Chaitali Sengupta
  • Patent number: 8290084
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 16, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Patent number: 8279831
    Abstract: A system, method, and computer-readable medium are provided for choosing a network for connection and handover based on the application requirements of a multi-mode, multi-radio user equipment. The selection of the network for connectivity and handover is based on one or more of the invoking of an application, the invoking of a second application, and the closing of an application.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: October 2, 2012
    Assignee: SNRLabs Corporation
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Patent number: 8126461
    Abstract: A system, method, and computer-readable medium for a communications system to manage multiple radios and protocol stacks in a network and in a user equipment are provided. When active communications takes place over one radio system, an alternate radio system is managed in such a way that promotes both low-power operations and quick handovers. When communications are idle over all of the networks, one radio network may be assigned to be a primary radio network, and the alternate radio network may be switched off provided all incoming calls are routed to the primary radio network.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: February 28, 2012
    Assignee: SNRLabs Corporation
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Publication number: 20100165949
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Application
    Filed: March 10, 2010
    Publication date: July 1, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Patent number: 7701916
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: April 20, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Publication number: 20090180440
    Abstract: A communication system having a first communication device being in communication with a second communication device via a communication connectivity to a first communication network. The first communication device having a first handover module operable to handover communication connectivity from the first communication network to a second communication network. The second communication device having a second handover module cooperatively operable with the first handover module to maintain communication between the second communication device and the first communication device while the first handover module operates to handover communication connectivity from the first communication network to the second communication network.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 16, 2009
    Applicant: SNRLabs Corporation
    Inventors: Chaitali Sengupta, Yuan Kang Lee, Naveen Makineni, Sudipta Sen, Suresh Srinivasan
  • Publication number: 20080102832
    Abstract: A system, method, and computer-readable medium for a communications system to manage multiple radios and protocol stacks in a network and in a user equipment are provided. When active communications takes place over one radio system, an alternate radio system is managed in such a way that promotes both low-power operations and quick handovers. When communications are idle over all of the networks, one radio network may be assigned to be a primary radio network, and the alternate radio network may be switched off provided all incoming calls are routed to the primary radio network.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Applicant: SNRLabs Corporation
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Publication number: 20080102815
    Abstract: A system, method, and computer-readable medium are provided for decision-making criteria in a multi-mode, multi-radio user equipment to choose which radio network to use for connectivity and handover. Decision making depends on a number of different criteria: a user profile that specifies one or more user preference connectivity attributes, available applications of the user equipment, a service subscription of a user associated with the user equipment, a battery monitor of the user equipment, a respective link metrics indicator for each of the plurality of access networks, and application support capabilities of the plurality of access networks.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Applicant: SNRLABS CORPORATION
    Inventors: Chaitali Sengupta, Yuan Lee
  • Publication number: 20080101292
    Abstract: A system, method, and computer-readable medium are provided for choosing a network for connection and handover based on the application requirements of a multi-mode, multi-radio user equipment. The selection of the network for connectivity and handover is based on one or more of the invoking of an application, the invoking of a second application, and the closing of an application.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 1, 2008
    Applicant: SNRLABS CORPORATION
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Publication number: 20040190603
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Application
    Filed: April 13, 2004
    Publication date: September 30, 2004
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Patent number: 6775260
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: August 10, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Publication number: 20040101032
    Abstract: A circuit is designed with a matched filter circuit including a plurality of fingers (700, 702, 704) coupled to receive a data symbol. Each finger corresponds to a respective path of the data symbol. Each finger produces a respective output signal. A plurality of decoder circuits (706, 708, 710) receives the respective output signal from a respective finger of the plurality of fingers. Each decoder circuit produces a respective output signal. A joint detector circuit (1310) is coupled to receive each respective output signal from the plurality of decoder circuits. The joint detector circuit produces an output signal corresponding to a predetermined code.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 27, 2004
    Inventors: Anand G. Dabak, Timothy M. Schmidl, Chaitali Sengupta
  • Publication number: 20030223384
    Abstract: A method for performing a cell search routine commences by using the Synchronization Channel's (SCH) Primary Synchronization Code (PSC) to acquire slot synchronization to a cell (402). This step will collect a number of hypotheses for frame timing. The method then uses a searcher algorithm such as a sequential dwell searcher that can quickly reject all of the wrong hypotheses gathered in the slot synchronization step, and determine the best hypotheses (404). This cell search routine leads to faster cell acquisition times as compared to some prior art techniques. A receiver (502) that includes a cell searcher (504) that performs the method mentioned above is also described.
    Type: Application
    Filed: March 19, 2002
    Publication date: December 4, 2003
    Inventors: Chaitali Sengupta, Yuan Kang Lee
  • Patent number: 6288674
    Abstract: In one aspect, the present invention discloses a communication device (see, for example, FIG. 5), such as a mobile unit (e.g., a cellular telephone handset) or a stationary unit (e.g., a cellular telephone base station). The communication device utilizes global positioning system (GPS) information 560 within a Doppler profile generator 540. For example, in a mobile unit, the GPS information would typically be generated at the device. A receiver 520 is coupled to the Doppler profile generator 550. The receiver 520 utilizes Doppler profile information in translating a received wireless signal into user information.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: September 11, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Chaitali Sengupta, Carl Panasik