Patents by Inventor PATRICK NERCESSIAN

PATRICK NERCESSIAN 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: 20250012906
    Abstract: A LIDAR system transmits a system output signal from the LIDAR system such that a sample region is illuminated by the system output signal. The LIDAR system includes a first light signal combiner configured to combine light that returns to the LIDAR system from the system output signal with light from a reference signal so as to generate a composite signal beating at a composite beat frequency. The LIDAR system includes a local light signal combiner configured to combine a first local signal with a second local signal so as to generate a local beating signal beating at a local beat frequency. The reference signal, the system output signal, the first local signal, and the second local signal each includes light from an outgoing LIDAR signal. The LIDAR system also includes electronics that perform a calculation of LIDAR data for the sample region.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 9, 2025
    Inventors: Behnam Behroozpour, Nirmal Chindhu Warke, Patrick Nercessian, Mehdi Asghari
  • Patent number: 11650318
    Abstract: A system comprises an optical heterodyne device, the optical heterodyne device configured to generate an overlap signal based upon: 1) a first optical signal output by a frequency-modulated continuous-wave (FMCW) laser, wherein the first optical signal comprises an optical frequency chirp that is based upon an input voltage signal received by the FMCW laser; and 2) a second optical signal output by a reference laser. The system also includes a photodetector that is optically coupled to the optical heterodyne device, the photodetector configured to output an electrical beat signal based upon the mixing of the optical signals, wherein the electrical beat signal is representative of the mixed down optical signal. The system further includes a frequency analyzer system that generates, based upon the electrical beat signal, data that is indicative of linearity of the optical frequency chirp in the first optical signal.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 16, 2023
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Ayan Chakrabarty, Vladimir Ilchenko, Kamel Benboudjema, Richard Kalantar Ohanian, Patrick Nercessian
  • Publication number: 20210311192
    Abstract: A system comprises an optical heterodyne device, the optical heterodyne device configured to generate an overlap signal based upon: 1) a first optical signal output by a frequency-modulated continuous-wave (FMCW) laser, wherein the first optical signal comprises an optical frequency chirp that is based upon an input voltage signal received by the FMCW laser; and 2) a second optical signal output by a reference laser. The system also includes a photodetector that is optically coupled to the optical heterodyne device, the photodetector configured to output an electrical beat signal based upon the mixing of the optical signals, wherein the electrical beat signal is representative of the mixed down optical signal. The system further includes a frequency analyzer system that generates, based upon the electrical beat signal, data that is indicative of linearity of the optical frequency chirp in the first optical signal.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 7, 2021
    Inventors: Ayan Chakrabarty, Vladimir Ilchenko, Kamel Benboudjema, Richard Kalantar Ohanian, Patrick Nercessian
  • Patent number: 8588724
    Abstract: A system and method for improving the processing of communications signals received in the presence of narrowband interference signals. The received communications signals are time sampled and transformed into a series of spectral terms in the frequency domain that are then evaluated to identify narrowband interference signals. The identified narrowband interference terms can be calculated to a value that will optimize the corrupted spectral terms resulting from the communication, and an inverse transformation can be used to generate a time domain signal that is free from interference.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 19, 2013
    Assignee: Alfred E. Mann Foundation for Scientific Research
    Inventors: Phillip B. Hess, Patrick Nercessian
  • Publication number: 20110053546
    Abstract: A system and method for improving the processing of communications signals received in the presence of narrowband interference signals. The received communications signals are time sampled and transformed into a series of spectral terms in the frequency domain that are then evaluated to identify narrowband interference signals. The identified narrowband interference terms can be calculated to a value that will optimize the corrupted spectral terms resulting from the communication, and an inverse transformation can be used to generate a time domain signal that is free from interference.
    Type: Application
    Filed: August 19, 2010
    Publication date: March 3, 2011
    Applicant: ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
    Inventors: PHILLIP B. HESS, PATRICK NERCESSIAN