Patents Assigned to Invisitrack, Inc.
  • Patent number: 9288623
    Abstract: An autonomous system with no Customer Network Investment is described, wherein the system is configurable to operate on in a band in addition to the LTE band. Such system allows the definition of hybrid operations to accommodate the positioning reference signals (PRS) of LTE and already existing reference signals. The system can operate with PRS, with other reference signals such as cell-specific reference signals (CRS), or with both signal types. As such, the system provides the advantage of allowing network operator(s) to dynamically choose between modes of operation depending on circumstances, such as network throughput and compatibility.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: March 15, 2016
    Assignee: INVISITRACK, INC.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Patent number: 8886223
    Abstract: A system for determining location of an object including a Master Unit having an RF transceiver and adapted to measure distance to a Tag. The Master Unit has a first input from which it can derive its current position, transmits instructions to the Tag for movement in a predetermined direction, measures distance to the Tag after the movement in the predetermined direction, and determines position of the Tag after the movement in the predetermined direction. The Tag and Master Unit can include a compass, a pedometer, an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master Unit can optionally include a GPS receiver. The Tag movement does not have to follow the Master Unit's direction, but the Master Unit will still be able to determine the Tag location(s). The roles of the Master Unit and Tag can be reversed.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 11, 2014
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Evgenii Mikhienko, Evgenii Vityaev
  • Patent number: 8648722
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system can also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eN B) or its functional equivalent and mobile device (UE) and or network device. The method and system includes multi-path mitigations processor and multi-path mitigations techniques and algorithms which improve the track-locate accuracy. The method and system allow achieving increased accuracy by using multi-path mitigations processor and multi-path mitigations techniques and algorithms. The techniques of Digital Signal Processing and Software-Defined Radio are used.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 11, 2014
    Assignee: Invisitrack, Inc.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Publication number: 20130190014
    Abstract: A system for determining location of an object including a Master Unit having an RF transceiver and adapted to measure distance to a Tag. The Master Unit has a first input from which it can derive its current position, transmits instructions to the Tag for movement in a predetermined direction, measures distance to the Tag after the movement in the predetermined direction, and determines position of the Tag after the movement in the predetermined direction. The Tag and Master Unit can include a compass, a pedometer, an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master Unit can optionally include a GPS receiver. The Tag movement does not have to follow the Master Unit's direction, but the Master Unit will still be able to determine the Tag location(s). The roles of the Master Unit and Tag can be reversed.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 25, 2013
    Applicant: INVISITRACK, INC.
    Inventor: INVISITRACK, INC.
  • Patent number: 8423042
    Abstract: A system for determining location of an object, the system including a Master Unit having an RF transceiver and adapted to measure distance to the Tag. The Master Unit has a first input from which it can derive its current position. The Master Unit transmits instructions to the Tag for movement in a predetermined direction. The Master Unit measures distance to the Tag after the movement in the predetermined direction. The Master Unit determines position of the Tag after the movement in the predetermined direction. The Tag can include a compass, a pedometer, and optionally an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master can optionally include a compass as well as a pedometer, an altimeter, an accelerometer, a solid-state gyroscope, an altimeter and a GPS receiver. Also, the Tag movement does not have to follow the Master's direction. However, the Master Unit still will be able to determine the Tag location(s).
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: April 16, 2013
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Evgenii Mikhienko, Evgenii Vityaev
  • Publication number: 20130045754
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system can also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eN B) or its functional equivalent and mobile device (UE) and or network device. The method and system includes multi-path mitigations processor and multi-path mitigations techniques and algorithms which improve the track-locate accuracy. The method and system allow achieving increased accuracy by using multi-path mitigations processor and multi-path mitigations techniques and algorithms. The techniques of Digital Signal Processing and Software-Defined Radio are used.
    Type: Application
    Filed: September 28, 2012
    Publication date: February 21, 2013
    Applicant: INVISITRACK, INC.
    Inventor: Invisitrack, Inc.
  • Patent number: 8305215
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system can also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eNB) or its functional equivalent and mobile device (UE) and or network device. The method and system includes multi-path mitigations processor and multi-path mitigations techniques and algorithms which improve the track-locate accuracy. The method and system allow achieving increased accuracy by using multi-path mitigations processor and multi-path mitigations techniques and algorithms. The techniques of Digital Signal Processing and Software-Defined Radio are used.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: November 6, 2012
    Assignee: Invisitrack, Inc.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Publication number: 20110256882
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system can also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eNB) or its functional equivalent and mobile device (UE) and or network device. The method and system includes multi-path mitigations processor and multi-path mitigations techniques and algorithms which improve the track-locate accuracy. The method and system allow achieving increased accuracy by using multi-path mitigations processor and multi-path mitigations techniques and algorithms. The techniques of Digital Signal Processing and Software-Defined Radio are used.
    Type: Application
    Filed: May 17, 2011
    Publication date: October 20, 2011
    Applicant: InvisiTrack, Inc.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Patent number: 7969311
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system might also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eNB) or its functional equivalent and mobile device (UE) and or network device. Other wireless networks that do not use reference and/or pilot signals may employ one or more of the following types of alternate embodiments of present invention: 1) where a portion of frame is dedicated to the ranging signal/ranging signal elements; 2) where the ranging signal elements are embedded into (spread across) transmit/receive signals frame(s); and 3) where the ranging signal elements are embedded with the data.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: June 28, 2011
    Assignee: InvisiTrack, Inc.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Publication number: 20110111751
    Abstract: A method and system for identification, tracking and locating in wireless communications and wireless networks. The method and system use reference and/or pilot signals that are present in wireless communications and wireless networks. The method and system might also use RTT, TOA and time-stamping measurements/techniques to determine one or more reference signals traveling time between the Base Station (eNB) or its functional equivalent and mobile device (UE) and or network device. Other wireless networks that do not use reference and/or pilot signals may employ one or more of the following types of alternate embodiments of present invention: 1) where a portion of frame is dedicated to the ranging signal/ranging signal elements; 2) where the ranging signal elements are embedded into (spread across) transmit/receive signals frame(s); and 3) where the ranging signal elements are embedded with the data.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 12, 2011
    Applicant: Invisitrack, Inc.
    Inventors: Felix Markhovsky, Truman Prevatt
  • Patent number: 7872583
    Abstract: A method and system for a long range Radio Frequency (RF)-based identification, tracking and locating of objects. The method and system use a narrow bandwidth ranging signal(s), including VHF of lower frequency bands, which minimizes propagation loss and loss of accuracy of the RF locating signals. The method and system includes narrow bandwidth ranging signal multi-path mitigations processor, which further improves the track-locate accuracy. The signal is sent from a Master Unit(s) to a Tag. The signal traveling time is recorded and the distance between the Master(s) and the Tag is calculated. The method and system allow achieving a longer distance of the RF narrow bandwidth ranging signal penetration and an increased accuracy by using VHF bands in conjunction with the narrow bandwidth ranging signal multi-path mitigations processor. The techniques of Digital Signal Processing and Software-Defined Radio are used. The actual waveforms transmitted and received by the radios are defined by the software.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: January 18, 2011
    Assignee: Invisitrack, Inc.
    Inventors: Andrey Yushkov, Vladimir Zhulanov, Felix Markhovsky, Truman Prevatt, Lawrence Weill
  • Patent number: 7822424
    Abstract: A wireless system (20) and method for determining the location of a fixed or mobile target (31, 32, 33 . . . ) configured to have a transponder (31, 64) on the target (31, 32, 33 . . . ), a transceiver (21, 44) monitoring the target location, communicating between the transponder (31, 64) and transceiver (21, 44), and a processor (40) for finding the target by virtual triangulation based on values of received position information. The processor (40) is configured to determine virtual triangulation based on successive values of the position information using at least three points (P1, P2 and P3) of the transponder (31) respective of the transceiver (21).
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: October 26, 2010
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Sergei Osipov, Evgenii Vityaev, Evgenii Mikhienko, Andrey Tiurlikov, Sergei Ivaniya, Stanislav Markhovsky
  • Patent number: 7787886
    Abstract: A wireless system and method for determining the location of a fixed or mobile target configured to have a transponder on the target, a transceiver monitoring the target location, communicating between the transponder and transceiver, and a processor for finding the target by virtual triangulation based on values of received position information. The processor is determines virtual triangulation based on successive values of the position information using at least three points P1, P2 and P3 of the transponder respective of the transceiver. The present invention discloses methods for finding with virtual triangulation by: (1) finding with virtual triangulation by generating position information in real-time, in the case of (i) stationary and moving target, and or (ii) in the case of the presence of obstacles; (2) finding with virtual triangulation relating to the average speed of the motion of operator; and or (3) finding with simplified virtual triangulation.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: August 31, 2010
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Sergei Osipov, Andrey Tiurlikov, Sergei Ivaniya, Stanislav Markhovsky, Evgenii Vityaev, Evgenii Mikhienko
  • Patent number: 7760132
    Abstract: The present invention is an RF system and methods for finding a target T in three dimensional space configured to have a transponder disposed on the target T, a monitoring unit configured as a transceiver for determining or monitoring the location of the target T and an RF wireless communication system configured with a processor to repeatedly determine position, communication and other values between the transponder and monitoring unit and so as to generate a measured distance between units in three dimensional space by determining the measured distance of the target T by a spherical virtual triangulation relationship when successive values of said position information has a predetermined logical relationship relative to said previous values between said monitoring unit and transponder and/or slave unit disposed on the target T.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: July 20, 2010
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Evgenii Vityaev, Evgenii Mikhienko
  • Patent number: 7561048
    Abstract: A method and system for a Radio Frequency (RF)-based identification, tracking and locating of objects. The method and system use a narrow bandwidth signal in VHF of lower frequency range, which minimizes propagation loss and loss of accuracy of the RF locating signals. The signal is sent from a Master Unit(s) to a Tag. The signal traveling time is recorded and the distance between the Master(s) and the Tag is calculated. The method and system allow achieving a longer distance of the RF signal penetration and an increased accuracy by using VHF bands. The techniques of Digital Signal Processing and Software-Defined Radio are used. The actual waveforms transmitted and received by the radios are defined by the software. The roles of the Master Unit(s) and the Tag can be reversed.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: July 14, 2009
    Assignee: Invisitrack, Inc.
    Inventors: Andrey Yushkov, Alexey Talyshev, Felix Markhovsky
  • Patent number: 7423580
    Abstract: The present invention is an RF system and methods for finding a target T in three dimensional space configured to have a transponder disposed on the target T, a monitoring unit configured as a transceiver for determining or monitoring the location of the target T and an RF wireless communication system configured with a processor to repeatedly determine position, communication and other values between the transponder and monitoring unit and so as to generate a measured distance between units in three dimensional space by determining the measured distance of the target T by a spherical virtual triangulation relationship when successive values of said position information has a predetermined logical relationship relative to said previous values between said monitoring unit and transponder and/or slave unit disposed on the target T.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: September 9, 2008
    Assignee: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Evgenii Vityaev, Evgenii Mikhienko
  • Publication number: 20070139200
    Abstract: A method and system for a Radio Frequency (RF)-based identification, tracking and locating of objects. The method and system use a narrow bandwidth signal in VHF of lower frequency range, which minimizes propagation loss and loss of accuracy of the RF locating signals. The signal is sent from a Master Unit(s) to a Tag. The signal traveling time is recorded and the distance between the Master(s) and the Tag is calculated. The method and system allow achieving a longer distance of the RF signal penetration and an increased accuracy by using VHF bands. The techniques of Digital Signal Processing and Software-Defined Radio are used. The actual waveforms transmitted and received by the radios are defined by the software. The roles of the Master Unit(s) and the Tag can be reversed.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 21, 2007
    Applicant: INVISITRACK, INC.
    Inventors: Andrey Yushkov, Alexey Talyshev, Felix Markhovsky
  • Publication number: 20070075898
    Abstract: A system for determining location of an object, the system including a Master Unit having an RF transceiver and adapted to measure distance to the Tag. The Master Unit has a first input from which it can derive its current position. The Master Unit transmits instructions to the Tag for movement in a predetermined direction. The Master Unit measures distance to the Tag after the movement in the predetermined direction. The Master Unit determines position of the Tag after the movement in the predetermined direction. The Tag can include a compass, a pedometer, and optionally an accelerometer, a solid-state gyroscope, an altimeter inputs for determining its current position by the Master Unit. The Master can optionally include a compass as well as a pedometer, an altimeter, an accelerometer, a solid-state gyroscope, an altimeter and a GPS receiver. Also, the Tag movement does not have to follow the Master's direction. However, the Master Unit still will be able to determine the Tag location(s).
    Type: Application
    Filed: September 19, 2006
    Publication date: April 5, 2007
    Applicant: INVISITRACK, INC.
    Inventors: Russ MARKHOVSKY, Evgenii MIKHIENKO, Evgenii VITYAEV
  • Publication number: 20060256001
    Abstract: The present invention is an RF system and methods for finding a target T in three dimensional space configured to have a transponder disposed on the target T, a monitoring unit configured as a transceiver for determining or monitoring the location of the target T and an RF wireless communication system configured with a processor to repeatedly determine position, communication and other values between the transponder and monitoring unit and so as to generate a measured distance between units in three dimensional space by determining the measured distance of the target T by a spherical virtual triangulation relationship when successive values of said position information has a predetermined logical relationship relative to said previous values between said monitoring unit and transponder and/or slave unit disposed on the target T.
    Type: Application
    Filed: March 14, 2006
    Publication date: November 16, 2006
    Applicant: Invisitrack, Inc.
    Inventors: Russ Markhovsky, Evgenii Vityaev, Evgenii Mikhienko