Patents by Inventor Aurel A. Lazar

Aurel A. Lazar 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: 20220137017
    Abstract: The present disclosure provides, method, a system, and apparatus for identifying odorants. For example, the apparatus performs sensing an odorant using an olfactory sensor, encoding the sensed odorant to an electrical signal using an input processor, determining an identity representation of the odorant based on the encoded electrical signal, and determining odorant information using a time-dependent hash code based on the identity representation of the odorant.
    Type: Application
    Filed: December 14, 2020
    Publication date: May 5, 2022
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Tingkai Liu, Chung-Heng Yeh
  • Patent number: 9892518
    Abstract: Systems and methods for the detection of motion in a multi-dimensional signal are provided. According to aspects of the disclosure, data representing a time sequence of frames of a video stream is received. A multi-dimensional Gaussian window in is then constructed. Each frame of the received data is divided into a plurality of blocks and, for each block in the plurality of blocks, each pixel in the block is multiplied with a corresponding pixel of the Gaussian window to obtain a windowed video block. The FFT of the windowed video block is computed to obtain an amplitude and phase thereof. The occurrence of motion in the block is then determined based on the computed phase of the windowed video block.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 13, 2018
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Aurel Lazar, Nikul H. Ukani, Yiyin Zhou
  • Publication number: 20170213350
    Abstract: Systems and methods for the detection of motion in a multi-dimensional signal are provided. According to aspects of the disclosure, data representing a time sequence of frames of a video stream is received. A multi-dimensional Gaussian window in is then constructed. Each frame of the received data is divided into a plurality of blocks and, for each block in the plurality of blocks, each pixel in the block is multiplied with a corresponding pixel of the Gaussian window to obtain a windowed video block. The FFT of the windowed video block is computed to obtain an amplitude and phase thereof. The occurrence of motion in the block is then determined based on the computed phase of the windowed video block.
    Type: Application
    Filed: June 9, 2016
    Publication date: July 27, 2017
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel Lazar, Nikul H. Ukani, Yiyin Zhou
  • Publication number: 20160148090
    Abstract: Systems and methods for channel identification, encoding and decoding signals, where the signals can have one or more dimensions, are disclosed. An exemplary method can include receiving the input signals and processing the input signals to provide a first output. The method can also encode the first output, at an asynchronous encoder, to provide encoded signals.
    Type: Application
    Filed: November 23, 2015
    Publication date: May 26, 2016
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskiy
  • Patent number: 9171249
    Abstract: Techniques for the identification of a spike-processing circuit are provided. An exemplary method includes receiving spike trains corresponding to a circuit input over a time period, and selecting a number of spikes for each of input spike trains over a predetermined time window. Each of the selected spikes can be replaced with a sampled reproducing kernel to obtain a plurality of signals, and each obtained signal can correspond to one of the input spike trains. Each of the obtained signals can be passed through a plurality of receptive fields or filters to obtain an aggregate filter output signal. The filter output signal can be encoded into an output spike train, and the output spike train can correspond to a response of the circuit to the plurality of input spike trains.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: October 27, 2015
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskiy
  • Publication number: 20150220832
    Abstract: Techniques for the identification of a spike-processing circuit are provided. An exemplary method includes receiving spike trains corresponding to a circuit input over a time period, and selecting a number of spikes for each of input spike trains over a predetermined time window. Each of the selected spikes can be replaced with a sampled reproducing kernel to obtain a plurality of signals, and each obtained signal can correspond to one of the input spike trains. Each of the obtained signals can be passed through a plurality of receptive fields or filters to obtain an aggregate filter output signal. The filter output signal can be encoded into an output spike train, and the output spike train can correspond to a response of the circuit to the plurality of input spike trains.
    Type: Application
    Filed: January 7, 2015
    Publication date: August 6, 2015
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskiy
  • Patent number: 9013635
    Abstract: Methods and systems for encoding and decoding signals using a Multi-input Multi-output Time Encoding Machine (TEM) and Time Decoding Machine are disclosed herein.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: April 21, 2015
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Aurel A. Lazar, Eftychios A. Pnevmatikakis
  • Patent number: 9014216
    Abstract: Methods for decoding a signal encoded by a Time Encoding Machine (TEM) include defining a plurality of time-windows, each time-window corresponding to a portion of a TEM-encoded signal and made up of a plurality of trigger values, at least two of the time-windows overlapping, decoding each of the time-windows using a Time Decoding Machine (TDM) to generate a decoded time-window, and stitching the decoded time-windows together to generate a TEM-decoded signal.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: April 21, 2015
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Aurel A. Lazar, Erno K. Simonyi, Ádám Tóth, László Tiborné Tóth
  • Patent number: 8874496
    Abstract: Techniques for reconstructing a signal encoded with a time encoding machine (TEM) using a recurrent neural network including receiving a TEM-encoded signal, processing the TEM-encoded signal, and reconstructing the TEM-encoded signal with a recurrent neural network.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 28, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Aurel A. Lazar, Yiyin Zhou
  • Publication number: 20140279778
    Abstract: Systems and methods for system identification, encoding and decoding signals in a non-linear system are disclosed. An exemplary method can include receiving the one or more input signals and performing dendritic processing on the input signals. The method can also encode the output of the dendritic processing of the input signals, at a neuron, to provide encoded signals.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicant: The Trustees of Columbia University in the city of New York
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskiy
  • Publication number: 20140267606
    Abstract: Systems and methods for system identification, encoding and decoding multi-component signals are disclosed. An exemplary method can include receiving the one or more multi-component signals and separating the multi-component signals into channels. The method can also filter each of the channels using receptive field components. The values for the receptive field components can be aggregated and provided to neurons for encoding.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskiy, Yiyin Zhou
  • Publication number: 20140100472
    Abstract: Systems for untethered sensing and recording of activity of one or more electrically excitable cells in a target region includes at least one untethered probe. Each untethered probe includes at least one signal detector, configured to electrically couple to the target region, measure the activity of the one or more electrically excitable cells, and produce an electrical signal in response to the activity of the one or more electrically excitable cells, and at least one light source, electrically coupled to the at least one signal detector, to receive the electrical signal and emit a light signal representing the activity of the one or more electrically excitable cells. Methods for untethered sensing and recording of activity of one or more electrically excitable cells in a target region are also provided.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Dirk R. Englund, Aurel A. Lazar, Chaitanya Rastogi, Yevgeniy B. Slutskiy
  • Publication number: 20130311412
    Abstract: Techniques for reconstructing a signal encoded with a time encoding machine (TEM) using a recurrent neural network including receiving a TEM-encoded signal, processing the TEM-encoded signal, and reconstructing the TEM-encoded signal with a recurrent neural network.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 21, 2013
    Applicant: The Trustees of Columbia University in the City of New York
    Inventors: Aurel A. Lazar, Yiyin Zhou
  • Publication number: 20120084040
    Abstract: Method for identification of at least one parameter of a sampling system includes transmitting at least one input signal to at least one channel of the sampling system; measuring at least one output signal of the sampling system in response to sampling of the at least one input signal by the receiver; and determining, using a processor, the at least one parameter of the sampling system using the at least one input signal and the at least one output signal of the sampling system. A system for identification of at least one parameter relating to a sampling system in response to at least one input signal is also provided.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Yevgeniy B. Slutskly
  • Patent number: 8131616
    Abstract: A method for controlling access to a system of finite resources with excess demand employs a two stage admission process. Subscribers are first admitted based on an initial bid price and resource availability. The market price is determined by the highest bid price among the rejected arrivals in the current batch. Admitted subscribers are then given the option to secure continued access to the resource by accepting a fee-based reservation. The fee for the reservation is determined in a manner which is fair to the reserving subscriber, as well as all other subscribers, in that the reservation fee is priced to provide access at a cost which prevents arbitraging opportunities. If the current market price exceeds a non-reserved subscriber's bid price, that non-reserved subscriber is displaced. If the current market price exceeds a reserved subscriber's bid price, that reserved subscriber's reservation is activated and access to the resource continues.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: March 6, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Nemo Semret, Aurel Lazar
  • Publication number: 20120039399
    Abstract: Methods and systems for encoding and decoding signals using a Multi-input Multi-output Time Encoding Machine (TEM) and Time Decoding Machine are disclosed herein.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 16, 2012
    Inventors: Aurel A. Lazar, Eftychios A. Pnevmatikakis
  • Patent number: 8023046
    Abstract: Methods and systems for encoding and decoding signals using a Multi-input Multi-output Time Encoding Machine (TEM) and Time Decoding Machine are disclosed herein.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: September 20, 2011
    Assignee: The Trustees of Columbia University in the city of New York
    Inventors: Aurel A. Lazar, Eftychios A. Pnevmatikakis
  • Publication number: 20100303101
    Abstract: Methods for decoding a signal encoded by a Time Encoding Machine (TEM) include defining a plurality of time-windows, each time-window corresponding to a portion of a TEM-encoded signal and made up of a plurality of trigger values, at least two of the time-windows overlapping, decoding each of the time-windows using a Time Decoding Machine (TDM) to generate a decoded time-window, and stitching the decoded time-windows together to generate a TEM-decoded signal.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 2, 2010
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Erno K. Simonyi, Laszlo T. Toth, Adam Toth, Tiborne Laszlo Toth
  • Publication number: 20100225824
    Abstract: Methods and systems for encoding and decoding signals using a Multi-input Multi-output Time Encoding Machine (TEM) and Time Decoding Machine are disclosed herein.
    Type: Application
    Filed: December 22, 2009
    Publication date: September 9, 2010
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel A. Lazar, Eftychios A. Pnevmatikakis
  • Patent number: 7792724
    Abstract: A method for controlling access to a system of finite resources with excess demand employs a two stage admission process. Subscribers are first admitted based on an initial bid price and resource availability. The market price is determined by the highest bid price among the rejected arrivals in the current batch. Admitted subscribers are then given the option to secure continued access to the resource by accepting a fee-based reservation. The fee for the reservation is determined in a manner which is fair to the reserving subscriber, as well as all other subscribers, in that the reservation fee is priced to provide access at a cost which prevents arbitraging opportunities. If the current market price exceeds a non-reserved subscriber's bid price, that non-reserved subscriber is displaced. If the current market price exceeds a reserved subscriber's bid price, that reserved subscriber's reservation is activated and access to the resource continues.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: September 7, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Nemo Semret, Aurel Lazar