Fred Owen Holmes

US Patent:

7586812, Sep 8, 2009

Filed:

Oct 30, 2007

Appl. No.:

11/981827

Inventors:

Kevin Baxter - La Crescenta CA, US
Fred Holmes - Cleveland OK, US
Ken Fisher - North Hollywood CA, US

Assignee:

Shotspotter, Inc. - Mountain View CA

International Classification:

G01S 3/80

US Classification:

367127, 367906

Abstract:

A system and method for detecting, identifying, and fixing the location of the source of an acoustic event. The inventive system includes: a plurality of sensors dispersed at somewhat regular intervals throughout a monitored area; a communication network adapted to deliver information from the sensors to a host processor; and a process within the host processor for determining, from the absolute times of arrival of an event at two or more sensors, a position of the source of the event. Acoustic events are detected and analyzed at each sensor so that the sensor transmits over the network: an identifier for the sensor; an identifier for the type of event; and a precise absolute time of arrival of the event at the sensor. In a preferred embodiment, the system also identifies the type of weapon firing a gunshot.

US Patent:

20120063116, Mar 15, 2012

Filed:

Mar 15, 2011

Appl. No.:

13/048847

Inventors:

Kevin C. Baxter - Glendale CA, US
Fred H. Holmes - Cleveland OK, US
Ken Fisher - North Hollywood CA, US

International Classification:

G03B 15/02
F21V 29/02
F21V 5/04
F21V 21/00

US Classification:

362 6, 362 3, 362 11, 362 16

Abstract:

A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.

US Patent:

20120087102, Apr 12, 2012

Filed:

Apr 11, 2011

Appl. No.:

13/084442

Inventors:

Kevin C. Baxter - Glendale CA, US
Fred H. Holmes - Cleveland OK, US
Ken Fisher - North Hollywood CA, US

International Classification:

G03B 15/02

US Classification:

362 6, 362 3, 362 11

Abstract:

A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.

US Patent:

20130094193, Apr 18, 2013

Filed:

Apr 6, 2012

Appl. No.:

13/441831

Inventors:

Kevin C. Baxter - Glendale CA, US
Fred H. Holmes - Cleveland OK, US

International Classification:

F21L 4/02
F21V 7/00
F21V 29/00

US Classification:

362184

Abstract:

LED based searchlight/sky light including, in a basic embodiment, a housing; an LED array supported in/by the housing, a heat sink in communication with the LED array, and a reflector supported in the housing such that the LED array is supported by the housing a distance sufficient above the reflector to allow the light emitted by the LED array to be reflected by the reflector. The reflector is preferably a parabolic reflector such that the light emitted by the LED array is reflected by the parabolic reflector in an intense collimated beam. The LED array may be supported above the parabolic reflector a distance equal to the focal length of the parabolic reflector. A power supply may also be included to regulate the electrical current applied to the LED array.