Patents by Inventor Deepak Das

Deepak Das 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: 20150023188
    Abstract: A plurality of wireless devices which communicate with at least one other device are simultaneously tested using a test regime which includes a plurality of corresponding comparative tasks. Commencement of each task by all wireless devices is synchronized. Test results are analyzed and a side-by-side comparison is provided on an overall, per task type, and per task basis.
    Type: Application
    Filed: May 6, 2014
    Publication date: January 22, 2015
    Applicant: Azimuth Systems, Inc.
    Inventors: Deepak Das, Nandish Chalishazar, Eric Ely
  • Publication number: 20150025818
    Abstract: A plurality of wireless devices which communicate with at least one other device are simultaneously tested using a test regime which includes a plurality of tasks. At least one device synchronizes commencement of each task by all wireless devices. At least one device logs performance measurements of each wireless device for each task. Because the wireless devices begin each task at the same time the resulting log files facilitate per-task performance analysis for each wireless device.
    Type: Application
    Filed: May 6, 2014
    Publication date: January 22, 2015
    Applicant: Azimuth Systems, Inc.
    Inventors: Deepak Das, Nandish Chalishazar, Eric Ely
  • Publication number: 20140086079
    Abstract: A wireless network emulation system undersamples log files when the conditions represented in the log files would require a faster refresh rate than the channel emulator can provide. A representative sample may be selected based on number of channel taps, delay spread, maximum value, or being first, last or otherwise identifiable within a group. The RF information from the selected sample is utilized as being representative of a group of related samples for a given time period corresponding to the refresh rate of the channel emulator.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 27, 2014
    Applicant: Azimuth Systems, Inc.
    Inventors: Deepak Das, Nandish Chalishazar, Pattabhi Cherukuri, Volkan Sevindik
  • Publication number: 20140024318
    Abstract: Missing or unwanted parameter data indicative of wireless network conditions in a log file or playback file is replaced with substitute parameter data. The substitute parameter data can be calculated based on other data in the log file or playback file, selected from pre-defined data in storage, and provided by a user. The substitute parameter data may also be customized by the user via an interface.
    Type: Application
    Filed: August 1, 2013
    Publication date: January 23, 2014
    Applicant: Azimuth Systems, Inc.
    Inventors: Volkan Sevindik, Deepak Das, Pattabhi Ram Cherukuri
  • Patent number: 8326342
    Abstract: This description relates to information sharing in a private access point network.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: December 4, 2012
    Assignee: Airvana, Inc.
    Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
  • Patent number: 8280376
    Abstract: In general, a first private access point detects a neighboring private access point. An address of the neighboring private access point is identified, and a peer-to-peer network that includes the first private access point and the neighboring private access points is formed. The peer-to-peer network is maintained between the first private access point and the neighboring private access points.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 2, 2012
    Assignee: Airvana, Corp.
    Inventors: Sundaram M. Rajagopalan, Deepak Das, Balaji Raghothaman, Woojune Kim, Steve Kohalmi
  • Patent number: 8170598
    Abstract: This description relates to information sharing in a private access point network.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: May 1, 2012
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
  • Publication number: 20120064929
    Abstract: This description relates to information sharing in a private access point network.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
  • Publication number: 20100167771
    Abstract: This description relates to information sharing in a private access point network.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
  • Publication number: 20100167742
    Abstract: In general, a first private access point detects a neighboring private access point. An address of the neighboring private access point is identified, and a peer-to-peer network that includes the first private access point and the neighboring private access points is formed. The peer-to-peer network is maintained between the first private access point and the neighboring private access points.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Sundaram M. Rajagopalan, Deepak Das, Balaji Raghothaman, Woojune Kim, Steven Kohalmi
  • Publication number: 20080159160
    Abstract: The present invention provides a method of wireless communication. One embodiment of the method includes determining a persistence parameter for at least one packet transmission based upon information indicative of a congestion level.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: DEEPAK DAS, JUNG AH LEE
  • Patent number: 7352825
    Abstract: The disclosed embodiments relate to a communication system and method. The system may comprise a pre-whitening device that applies pre-whitening data to a received signal from an antenna array to produce a pre-whitened signal, at least one detector that is adapted to recognize a pattern corresponding to a request for access in the pre-whitened signal and compute correlation data corresponding to the pattern, and a threshold detector that determines whether the correlation data exceeds a threshold and indicates that an acknowledgement signal should be transmitted if the threshold is exceeded. The method may comprise the acts of creating a pre-whitened signal by applying pre-whitening data to a received signal, detecting a pattern that corresponds to a request for access in the pre-whitened signal, computing correlation data corresponding to the pattern, determining whether the correlation data exceeds a threshold, and indicating that an acknowledgement signal should be transmitted if the threshold is exceeded.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: April 1, 2008
    Assignee: Lucent Technologies Inc.
    Inventors: Deepak Das, Jung Ah Lee, Shirish Nagaraj, Anil M. Rao
  • Publication number: 20050117675
    Abstract: The disclosed embodiments relate to a communication system and method. The system may comprise a pre-whitening device that applies pre-whitening data to a received signal from an antenna array to produce a pre-whitened signal, at least one detector that is adapted to recognize a pattern corresponding to a request for access in the pre-whitened signal and compute correlation data corresponding to the pattern, and a threshold detector that determines whether the correlation data exceeds a threshold and indicates that an acknowledgement signal should be transmitted if the threshold is exceeded. The method may comprise the acts of creating a pre-whitened signal by applying pre-whitening data to a received signal, detecting a pattern that corresponds to a request for access in the pre-whitened signal, computing correlation data corresponding to the pattern, determining whether the correlation data exceeds a threshold, and indicating that an acknowledgement signal should be transmitted if the threshold is exceeded.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 2, 2005
    Inventors: Deepak Das, Jung Lee, Shirish Nagaraj, Anil Rao