Patents by Inventor Venkateswaran Kasirajan

Venkateswaran Kasirajan 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: 20150045059
    Abstract: An image that includes a point of interest is captured using an image capturing device that is an integral part of the mobile data collection platform. Raw observables are obtained from a GNSS raw observables provider that is external to and coupled with the mobile data collection platform. A position fix of the mobile data collection platform is determined based on the raw observables where the position fix is a location of an antenna. A location of an entrance pupil is calculated as an offset from the location of the antenna. Orientation information comprising a tilt angle and an azimuth angle is determined. The position fix and the orientation information are associated with a three dimensional location of the mobile data collection platform when the image was captured. Scale information is captured. The image, the position fix, the scale information, and the orientation information are stored in hardware memory of the mobile data collection platform.
    Type: Application
    Filed: October 15, 2014
    Publication date: February 12, 2015
    Inventors: Richard Rudow, Venkateswaran Kasirajan, Robert Wold, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky, Michael V. McCusker
  • Publication number: 20150043012
    Abstract: A known fixed relationship is maintained between an external electronic distance measurement accessory and a mobile data collection platform that are physically coupled together. A light beam axis of the external electronic distance measurement accessory is parallel with an optical axis of an entrance pupil of the mobile data collection platform. The external electronic distance measurement accessory integrates with the mobile data collection platform. The external electronic distance measurement accessory receives control instructions from the mobile data collection platform.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 12, 2015
    Inventors: Richard Rudow, Venkateswaran Kasirajan, Robert Wold, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky, Michael V. McCusker
  • Publication number: 20150045058
    Abstract: An image that includes a point of interest is captured using an image capturing device that is part of the mobile data collection platform. Raw observables are obtained from a GNSS chipset that is internal to the mobile data collection platform. A position fix of the mobile data collection platform is determined based on the raw observables where the position fix defines a location of an antenna. A location of an entrance pupil is calculated as an offset of the location of the antenna. Orientation information comprising a tilt angle and an azimuth angle is determined. The position fix and the orientation information are associated with a three dimensional location that the mobile data collection platform is at when the image was captured. Scale information is captured. The image, the position fix, the scale information, and the orientation information are stored in hardware memory of the mobile data collection platform.
    Type: Application
    Filed: October 15, 2014
    Publication date: February 12, 2015
    Inventors: Richard Rudow, Venkateswaran Kasirajan, Robert Wold, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky, Michael V. McCusker
  • Publication number: 20140378171
    Abstract: A first process and a second process are executed concurrently by one or more hardware processors located in the cellular device and outside of a Global Navigation Satellite System (GNSS) chipset embedded in the cellular device. The first process determines a first set of one or more position fixes based on extracted raw pseudorange information. The second process determines carrier phase smoothed pseudoranges based on carrier phase information and determines a second set of one or more position fixes based on the carrier phase smoothed pseudoranges. One or more of the first set of position fixes are provided to a user while a predetermined amount of carrier phase information is not available for performing carrier phase smoothing. One or more of the second set of position fixes are provided to the user while a predetermined amount of carrier phase information is available for performing carrier phase smoothing.
    Type: Application
    Filed: May 2, 2014
    Publication date: December 25, 2014
    Inventors: Richard Rudow, Robert Wold, Venkateswaran Kasirajan, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140378170
    Abstract: A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw pseudoranges. The raw pseudoranges are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. A position fix is calculated based on the raw pseudoranges. At a first point in time, a first image, and at a second point in time, a second image are obtained with an image capturing device that is in a known physical relationship with the cellular device. An estimate of a distance that the cellular device moved from the first point in time to the second point in time is calculated by processing image data collected from the first point in time to the second point in time. The position fix is processed based on the estimate of the distance.
    Type: Application
    Filed: May 2, 2014
    Publication date: December 25, 2014
    Inventors: Richard Rudow, Robert Wold, Venkateswaran Kasirajan, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140253375
    Abstract: A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw pseudoranges. The raw pseudoranges are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. A position fix is determined based on the raw pseudoranges. Locally measured cellular device movement information is obtained from at least one sensor that is in a known physical relationship with the cellular device. The locally measured cellular device movement information is applied to the position fix.
    Type: Application
    Filed: May 2, 2014
    Publication date: September 11, 2014
    Inventors: Richard Rudow, Robert Wold, Venkateswaran Kasirajan, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140240170
    Abstract: A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw observables that include raw pseudoranges and carrier phase information. The raw observables are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. Smoothed pseudoranges are provided by smoothing the raw pseudoranges based on the carrier phase information. The accessing, the extracting and the providing are performed by one or more hardware processors located in the cellular device and outside of the GNSS chipset.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Inventors: Richard Rudow, Robert Wold, Venkateswaran Kasirajan, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140184442
    Abstract: A method of extracting pseudorange information using a cellular device. A Global Navigation Satellite System (GNSS) chipset which is physically remote from a cellular device is accessed which provides raw GNSS observables information based upon signals received from a circularly polarized GNSS antenna. The raw GNSS observables information is wirelessly transmitted from the GNSS chipset to the cellular device. The raw GNSS observables information is extracted by a processor of the cellular device. The raw GNSS observables information, in addition to GNSS corrections from at least one correction source, is used by the processor to determine a position of the circularly polarized GNSS antenna.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Inventors: Peter Large, Richard Rudow, Robert Wold, Venkateswaran Kasirajan, James M. Janky
  • Publication number: 20140187193
    Abstract: The cellular device accesses a GPS/GNSS chipset embedded within the cellular device. The GPS/GNSS chipset calculates pseudorange information for use by the GPS/GNSS chipset. The cellular device extracts the pseudorange information from the GPS/GNSS chipset for use elsewhere in the cellular device outside of the GPS/GNSS chipset.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Inventors: Richard Rudow, Venkateswaran Kasirajan, Robert Wold, James M. Janky