Robert Davies Calhoun

US Patent:

20160133107, May 12, 2016

Filed:

Jan 18, 2016

Appl. No.:

14/997893

Inventors:

- Newark CA, US
James BELDOCK - Hillsborough CA, US
Gregory STONE - Santa Clara CA, US
Murphey JOHNSON - Austin TX, US
Robert CALHOUN - Oberlin OH, US

International Classification:

G08B 17/08
G08B 29/18
G08B 13/16

Abstract:

Systems and methods are disclosed for reliably detecting gunfire in enclosed spaces having significant acoustic reverberation. Implementations are configured to quickly and reliably report the room or portion of a room where gunfire is located. Innovations herein may ensure low false alarm rate by thresholding, pattern recognition and/or detecting the muzzle optical flash. In some embodiments, a review center with trained personnel may evaluate the incident before reporting to local authorities. The indoor system can be incorporated into an outdoor gunshot location system to better protect a local area such as a campus or a transportation hub. Systems and methods herein may involve features and functionality associated with additional resources, such as intercoms, cellphones, and access control, to provide mitigation of harm in case of a shooting.

US Patent:

20140327543, Nov 6, 2014

Filed:

Mar 31, 2014

Appl. No.:

14/231604

Inventors:

- Newark CA, US
James BELDOCK - Hillsborough CA, US
Gregory STONE - Santa Clara CA, US
Murphey JOHNSON - Austin TX, US
Robert CALHOUN - Oberlin OH, US

Assignee:

Shotspotter, Inc. - Newark CA

International Classification:

G08B 17/08

US Classification:

340540

Abstract:

Systems and methods are disclosed for reliably detecting gunfire in enclosed spaces having significant acoustic reverberation. Implementations are configured to quickly and reliably report the room or portion of a room where gunfire is located. Innovations herein may ensure low false alarm rate by thresholding, pattern recognition and/or detecting the muzzle optical flash. In some embodiments, a review center with trained personnel may evaluate the incident before reporting to local authorities. The indoor system can be incorporated into an outdoor gunshot location system to better protect a local area such as a campus or a transportation hub. Systems and methods herein may involve features and functionality associated with additional resources, such as intercoms, cellphones, and access control, to provide mitigation of harm in case of a shooting.