Patents by Inventor Andre Pollok
Andre Pollok 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).
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Patent number: 11171738Abstract: The invention relates to method and apparatus for improving the performance of communication systems using Run length Limited (RLL) messages such as the existing Automatic Identification System (AIS). A binary data sequence is Forward Error Correction (FEC) coded and then the sequence is compensated, for example by bit-erasure, so that either bit-stuffing is not required, or a bit stuffer will not be activated to ensure that the coded sequence meets the RLL requirement. Various embodiments are described to handle different architectures or input points for the FEC encoder and bit erasure module. The bit erasure module may also add dummy bits to ensure a RLL compliant CRC or to selectively add bits to a reserve buffer to compensate for later bit stuffing in a header. Additional RLL training sequences may also be added to assist in, receiver acquisition.Type: GrantFiled: April 22, 2019Date of Patent: November 9, 2021Assignee: Myriota Pty LtdInventors: Alexander James Grant, Andre Pollok, Gottfried Lechner, David Victor Lawrie Haley, Robert George McKilliam, Ingmar Rudiger Land, Marc Pierre Denis Lavenant
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Patent number: 11139886Abstract: A multiuser communication system comprises multiple transmitters and a multiuser receiver that detects multiple transmissions via iterative soft interference cancellation. An initial acquisition module and single user decoder module are also described. The multiuser receiver acquires and subtracts known users in the residual signal before acquiring new users in the residual signal, which is performed iteratively until no new users are detected or a stopping criterion is met. To aid receiver acquisition, the transmitters insert discrete tones into the transmitted signals. These allow the multiuser receiver to obtain initial estimates of the frequency, time, gain, and/or phase offset for each user. To improve the quality of cancellation the receiver refines estimates of gain, time, frequency and phase offsets for each user after each iteration, and calculates time varying SINR estimates for each user. The multiuser receiver may be satellite based, may be a distributed receiver, or process users in parallel.Type: GrantFiled: March 25, 2019Date of Patent: October 5, 2021Assignee: Myriota Pty LtdInventors: Alexander James Grant, Gottfried Lechner, Andre Pollok, Robert George McKilliam, Ingmar Rudiger Land, David Victor Lawrie Haley, William George Cowley, Linda Mary Davis, Sorin Adrian Barbulescu, John Lawrence Buetefuer, Marc Pierre Denis Lavenant
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Patent number: 10955563Abstract: A method for estimating the position of a terminal in a satellite communication at either the ground station or in the satellite is described. The method uses estimates of the time delay, Doppler and/or Doppler Rate of signals transmitted from the terminal to the satellite together with an estimate of the satellite position. The method can be used with both synchronised terminals and unsynchronised terminals provided they have a stable time or frequency reference as well as with low earth orbit satellites both with and without on-board global position and timing references. Additionally the method can also use estimates of the time delay, Doppler or Doppler rate of beacon signals received by either the satellite or terminals. These beacon signals may include GPS L1 signals. In contrast to standard GPS receivers, the method does not require the terminal to store GPS ephemeris data or to operate continuously.Type: GrantFiled: May 16, 2017Date of Patent: March 23, 2021Assignee: MYRIOTA PTY LTDInventors: David Victor Lawrie Haley, Alexander James Grant, Robert George McKilliam, Andre Pollok
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Publication number: 20200367067Abstract: Terminal apparatus are configured to monitor one or more transmission links from one or more transmitters and use the information to determine a link quality estimate. The link quality estimate is then for determining one or more transmission parameters for a transmission from a transmitter to a receiver or for determining an installation location and orientation of a terminal for transmission to a receiver or reception from a transmitter. Link quality estimates may be obtained by monitoring multiple satellites including global navigation system satellites, and may comprise estimating a spatial map. The link quality estimates may also be used to schedule transmissions to maximize probability of reception.Type: ApplicationFiled: August 28, 2018Publication date: November 19, 2020Inventors: David Victor Lawrie HALEY, Alexander James GRANT, Robert George MCKILLIAM, Andre POLLOK
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Patent number: 10778325Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.Type: GrantFiled: June 10, 2019Date of Patent: September 15, 2020Assignee: Myriota Pty LtdInventors: David Victor Lawrie Haley, John Lawrence Buetefuer, Alexander James Grant, William George Cowley, Gottfried Lechner, Ingmar Rudiger Land, Robert George McKilliam, Andre Pollok, Linda Mary Davis, Ricky Rocco Luppino, Sorin Adrian Barbulescu
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Publication number: 20200028576Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.Type: ApplicationFiled: June 10, 2019Publication date: January 23, 2020Inventors: David Victor Lawrie Haley, John Lawrence Buetefuer, Alexander James Grant, William George Cowley, Gottfried Lechner, Ingmar Rudiger Land, Robert George McKilliam, Andre Pollok, Linda Mary Davis, Ricky Rocco Luppino, Sorin Adrian Barbulescu
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Publication number: 20190372657Abstract: A multiuser communication system comprises multiple transmitters and a multiuser receiver that detects multiple transmissions via iterative soft interference cancellation. An initial acquisition module and single user decoder module are also described. The multiuser receiver acquires and subtracts known users in the residual signal before acquiring new users in the residual signal, which is performed iteratively until no new users are detected or a stopping criterion is met. To aid receiver acquisition, the transmitters insert discrete tones into the transmitted signals. These allow the multiuser receiver to obtain initial estimates of the frequency, time, gain, and/or phase offset for each user. To improve the quality of cancellation the receiver refines estimates of gain, time, frequency and phase offsets for each user after each iteration, and calculates time varying SINR estimates for each user. The multiuser receiver may be satellite based, may be a distributed receiver, or process users in parallel.Type: ApplicationFiled: March 25, 2019Publication date: December 5, 2019Inventors: Alexander James Grant, Gottfried Lechner, Andre Pollok, Robert George McKilliam, Ingmar Rudiger Land, David Victor Lawrie Haley, William George Cowley, Linda Mary Davis, Sorin Adrian Barbulescu, John Lawrence Buetefuer, Marc Pierre Denis Lavenant
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Publication number: 20190293806Abstract: A method for estimating the position of a terminal in a satellite communication at either the ground station or in the satellite is described. The method uses estimates of the time delay, Doppler and/or Doppler Rate of signals transmitted from the terminal to the satellite together with an estimate of the satellite position. The method can be used with both synchronised terminals and unsynchronised terminals provided they have a stable time or frequency reference as well as with low earth orbit satellites both with and without on-board global position and timing references. Additionally the method can also use estimates of the time delay, Doppler or Doppler rate of beacon signals received by either the satellite or terminals. These beacon signals may include GPS L1 signals. In contrast to standard GPS receivers, the method does not require the terminal to store GPS ephemeris data or to operate continuously.Type: ApplicationFiled: May 16, 2017Publication date: September 26, 2019Inventors: David Victor Lawrie HALEY, Alexander James GRANT, Robert George MCKILLIAM, Andre POLLOK
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Publication number: 20190260506Abstract: The invention relates to method and apparatus for improving the performance of communication systems using Run length Limited (RLL) messages such as the existing Automatic Identification System (AIS). A binary data sequence is Forward Error Correction (FEC) coded and then the sequence is compensated, for example by bit-erasure, so that either bit-stuffing is not required, or a bit stuffer will not be activated to ensure that the coded sequence meets the RLL requirement. Various embodiments are described to handle different architectures or input points for the FEC encoder and bit erasure module. The bit erasure module may also add dummy bits to ensure a RLL compliant CRC or to selectively add bits to a reserve buffer to compensate for later bit stuffing in a header. Additional RLL training sequences may also be added to assist in, receiver acquisition.Type: ApplicationFiled: April 22, 2019Publication date: August 22, 2019Inventors: Alexander James Grant, Andre Pollok, Gottfried Lechner, David Victor Lawrie Haley, Robert George McKilliam, Ingmar Rudiger Land, Marc Pierre Denis Lavenant
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Patent number: 10320469Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.Type: GrantFiled: January 22, 2018Date of Patent: June 11, 2019Assignee: Myriota Pty LtdInventors: David Victor Lawrie Haley, John Lawrence Buetefuer, Alexander James Grant, William George Cowley, Gottfried Lechner, Ingmar Rudiger Land, Robert George McKilliam, Andre Pollok, Linda Mary Davis, Ricky Rocco Luppino, Sorin Adrian Barbulescu
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Patent number: 10321450Abstract: Methods and apparatus for communication between terminals and an access node in a multiuser multicarrier communications network are described. The access node may be a satellite access node. Terminals are configured to perform initial estimation and tracking of channel offsets and to estimate channel offsets for future packets to be transmitted by the terminal. In some embodiments the channel offsets comprise mobility related channel offsets due to the relative movement between the access node and the plurality of terminals. Transmissions from the terminals to the access node are pre-compensated for the channel offsets, so that the aggregate signal received by the access node occupies a bandwidth greater or equal to the maximum signal bandwidth of any individual terminal. Terminal transmissions may overlap in frequency and time on the ground, but arrive orthogonally at the access node.Type: GrantFiled: December 9, 2015Date of Patent: June 11, 2019Assignee: MYRIOTA PTY LTDInventors: David Victor Lawrie Haley, William George Cowley, John Lawrence Buetefuer, Alexander James Grant, Gottfried Lechner, Andre Pollok, Robert George McKilliam, Ingmar Rudiger Land, Marc Pierre Denis Lavenant, Ying Chen
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Patent number: 10313053Abstract: The invention relates to method and apparatus for improving the performance of communication systems using Run Length Limited (RLL) messages such as the existing Automatic Identification System (AIS). A binary data sequence is Forward Error Correction (FEC) coded and then the sequence is compensated, for example by bit-erasure, so that either bit-stuffing is not required, or a bit stuffer will not be activated to ensure that the coded sequence meets the RLL requirement. Various embodiments are described to handle different architectures or input points for the FEC encoder and bit erasure module. The bit erasure module may also add dummy bits to ensure a RLL compliant CRC or to selectively add bits to a reserve buffer to compensate for later bit stuffing in a header. Additional RLL training sequences may also be added to assist in, receiver acquisition.Type: GrantFiled: August 22, 2014Date of Patent: June 4, 2019Assignee: Myriota Pty LtdInventors: Alexander James Grant, Andre Pollok, Gottfried Lechner, David Victor Lawrie Haley, Robert George McKilliam, Ingmar Rudiger Land, Marc Pierre Denis Lavenant
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Patent number: 10284286Abstract: A multiuser communication system comprises multiple transmitters and a multiuser receiver that detects multiple transmissions via iterative soft interference cancellation. An initial acquisition module and single user decoder module are also described. The multiuser receiver acquires and subtracts known users in the residual signal before acquiring new users in the residual signal, which is performed iteratively until no new users are detected or a stopping criterion is met. To aid receiver acquisition, the transmitters insert discrete tones into the transmitted signals. These allow the multiuser receiver to obtain initial estimates of the frequency, time, gain, and/or phase offset for each user. To improve the quality of cancellation the receiver refines estimates of gain, time, frequency and phase offsets for each user after each iteration, and calculates time varying SINR estimates for each user. The multiuser receiver may be satellite based, may be a distributed receiver, or process users in parallel.Type: GrantFiled: August 21, 2014Date of Patent: May 7, 2019Assignee: Myriota Pty LtdInventors: Alexander James Grant, Gottfried Lechner, Andre Pollok, Robert George McKilliam, Ingmar Rudiger Land, David Victor Lawrie Haley, William George Cowley, Linda Mary Davis, Sorin Adrian Barbulescu, John Lawrence Buetefuer, Marc Pierre Denis Lavenant
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Publication number: 20180227042Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.Type: ApplicationFiled: January 22, 2018Publication date: August 9, 2018Inventors: David Victor Lawrie Haley, John Lawrence Buetefuer, Alexander James Grant, William George Cowley, Gottfried Lechner, Ingmar Rudiger Land, Robert George McKilliam, Andre Pollok, Linda Mary Davis, Ricky Rocco Luppino, Sorin Adrian Barbulescu
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Patent number: 9923624Abstract: A communication system is disclosed. In an embodiment, the communication system includes a user node for receiving data from a remote application program, the data including message data for communication to a central application program operatively associated with the remote application program; plurality of geographically distributed gateway nodes; one or more access nodes for receiving the message data from the user node via a first communications interface, and communicating the message data via a second communications interface to one or more of the plurality of geographically distributed gateway nodes; and a hub for communicating with the one or more of the plurality of geographically distributed gateway nodes to receive the message data for communication to the central application.Type: GrantFiled: September 20, 2013Date of Patent: March 20, 2018Assignee: University of South AustraliaInventors: David Victor Lawrie Haley, John Lawrence Buetefuer, Alexander James Grant, William George Cowley, Gottfried Lechner, Ingmar Rudiger Land, Robert George McKilliam, Andre Pollok, Linda Mary Davis, Ricky Rocco Luppino, Sorin Adrian Barbulescu
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Publication number: 20170347340Abstract: Methods and apparatus for communication between terminals and an access node in a multiuser multicarrier communications network are described. The access node may be a satellite access node. Terminals are configured to perform initial estimation and tracking of channel offsets and to estimate channel offsets for future packets to be transmitted by the terminal. In some embodiments the channel offsets comprise mobility related channel offsets due to the relative movement between the access node and the plurality of terminals. Transmissions from the terminals to the access node are pre-compensated for the channel offsets, so that the aggregate signal received by the access node occupies a bandwidth greater or equal to the maximum signal bandwidth of any individual terminal. Terminal transmissions may overlap in frequency and time on the ground, but arrive orthogonally at the access node.Type: ApplicationFiled: December 9, 2015Publication date: November 30, 2017Inventors: David Victor Lawrie HALEY, William George COWLEY, John Lawrence BUETEFUER, Alexander James GRANT, Gottfried LECHNER, Andre POLLOK, Robert George MCKILLIAM, Ingmar Rudiger LAND, Marc Pierre Denis LAVENANT, Ying CHEN
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Patent number: 9673967Abstract: A method for estimating a time offset of a transmitted signal which comprises pilot symbols and data symbols, the method comprising: receiving the transmitted signal to produce a received signal; and processing an optimizing function of the received signal at a finite number of possible time offsets to produce an estimator of the time offset.Type: GrantFiled: February 19, 2014Date of Patent: June 6, 2017Assignee: University of South AustraliaInventors: William George Cowley, Robert George McKilliam, Andre Pollok
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Publication number: 20160277145Abstract: The invention relates to method and apparatus for improving the performance of communication systems using Run Length Limited (RLL) messages such as the existing Automatic Identification System (AIS). A binary data sequence is Forward Error Correction (FEC) coded and then the sequence is compensated, for example by bit-erasure, so that either bit-stuffing is not required, or a bit stuffer will not be activated to ensure that the coded sequence meets the RLL requirement. Various embodiments are described to handle different architectures or input points for the FEC encoder and bit erasure module. The bit erasure module may also add dummy bits to ensure a RLL compliant CRC or to selectively add bits to a reserve buffer to compensate for later bit stuffing in a header. Additional RLL training sequences may also be added to assist in, receiver acquisition.Type: ApplicationFiled: August 22, 2014Publication date: September 22, 2016Inventors: Alexander James Grant, Andre Pollok, Gottfried Lechner, David Victor Lawrie Haley, Robert George McKilliam, Ingmar Rudiger Land, Marc Pierre Denis Lavenant
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Publication number: 20160204852Abstract: A multiuser communication system comprises multiple transmitters and a multiuser receiver that detects multiple transmissions via iterative soft interference cancellation. An initial acquisition module and single user decoder module are also described. The multiuser receiver acquires and subtracts known users in the residual signal before acquiring new users in the residual signal, which is performed iteratively until no new users are detected or a stopping criterion is met. To aid receiver acquisition, the transmitters insert discrete tones into the transmitted signals. These allow the multiuser receiver to obtain initial estimates of the frequency, time, gain, and/or phase offset for each user. To improve the quality of cancellation the receiver refines estimates of gain, time, frequency and phase offsets for each user after each iteration, and calculates time varying SINR estimates for each user. The multiuser receiver may be satellite based, may be a distributed receiver, or process users in parallel.Type: ApplicationFiled: August 21, 2014Publication date: July 14, 2016Inventors: Alexander James Grant, Gottfried Lechner, Andre Pollok, Robert George McKilliam, Ingmar Rudiger Land, David Victor Lawrie Haley, William George Cowley, Linda Mary Davis, Sorin Adrian Barbulescu, John Lawrence Buetefuer, Marc Pierre Denis Lavenant
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Patent number: 9362935Abstract: Parallel analog to digital converted (ADC) architectures that can be used to replace single path ADC architectures. The parallel ADC architecture can comprise N branches and one ADC per branch. These ADCs can be identical. However each branch can have a different path adjustments applied to the ADC. The path adjustments can be biases and/or gains and each ADC receives a different combination of biases and/or gain to generate multiple adjusted input signals. These are then combined to generate a quantized output signal. Using these parallel architectures a range of weighting and offset combining schemes can be employed to achieve improvements in signal to noise ratio and to reduce the impact of clipping as compared to a single path ADC architecture.Type: GrantFiled: August 13, 2013Date of Patent: June 7, 2016Assignee: University of South AustraliaInventors: Ying Chen, Andre Pollok, David Victor Lawrie Haley, Linda Mary Davis, Mark Damian McDonnell