DRO Patents, page-2

With regard to Droneshield patents -

Patents Assigned to DRONESHIELD, LLC

• Drone detection and classification with compensation for background clutter sources
  Patent number: 10032464

  Abstract: A system, method, and apparatus for detecting drones are disclosed. An example method includes receiving a digital sound sample and partitioning the digital sound sample into segments. The method also includes applying a frequency and power spectral density transformation to each of the segments to produce respective sample vectors. For each of the sample vectors, the example method determines a combination of drone sound signatures and background sound signatures that most closely match the sample vector. The method further includes determining, for the sample vectors, if the drone sound signatures in relation to the background sound signatures that are included within the respective combinations are indicative of a drone. Conditioned on determining that the drone sound signatures are indicative of a drone, an alert message indicative of the drone is transmitted.

  Type: Grant

  Filed: November 23, 2016

  Date of Patent: July 24, 2018

  Assignee: Droneshield, LLC

  Inventors: John Franklin, Brian Hearing
• Drone detection and classification methods and apparatus
  Patent number: 9858947

  Abstract: A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert.

  Type: Grant

  Filed: November 24, 2015

  Date of Patent: January 2, 2018

  Assignee: Droneshield, LLC

  Inventors: Brian Hearing, John Franklin
• Drone detection and classification methods and apparatus
  Patent number: 9704508

  Abstract: A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert.

  Type: Grant

  Filed: November 24, 2015

  Date of Patent: July 11, 2017

  Assignee: Droneshield, LLC

  Inventors: Brian Hearing, John Franklin
• Drone detection and classification methods and apparatus
  Patent number: 9697850

  Abstract: A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert.

  Type: Grant

  Filed: November 24, 2015

  Date of Patent: July 4, 2017

  Assignee: Droneshield, LLC

  Inventors: Brian Hearing, John Franklin
• Drone detection and classification methods and apparatus
  Patent number: 9275645

  Abstract: A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert.

  Type: Grant

  Filed: April 22, 2014

  Date of Patent: March 1, 2016

  Assignee: DRONESHIELD, LLC

  Inventors: Brian Hearing, John Franklin

https://patents.justia.com/assignee/droneshield-llc

For some direct company confirmation - refer to announcement on 16 July 2018 - re patent 10,032,464.

SK