James Michael Gallivan

US Patent:

6765535, Jul 20, 2004

Filed:

May 20, 2002

Appl. No.:

10/153140

Inventors:

Kenneth W. Brown - Yucaipa CA
James R. Gallivan - Pomona CA

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 138

US Classification:

343700MS, 343754

Abstract:

A monolithic semiconductor power device. The device is designed to produce high energy density and high power level RF/Millimeter wave radiation using the quasi-optical spatial power of an array ( ) of small amplifiers ( ) on a solid state wafer ( ). Each cell ( ) of the array ( ) contains a reflection amplifier ( ) that receives radiation and retransmits the signal back into the approximate same direction from which it was received. The radiation exiting from the array ( ) is physically like a reflection that has been modified by the individual amplifiers characteristics. The exiting amplified radiation leaves the array ( ) as a coherent wave front ( ). The individual amplifier elements are fabricated on a monolithic solid state wafer ( ). Rather than being diced into individual amplifiers, the elements are electrically connected together with proper biases and ground levels on the actual solid state wafer.

US Patent:

7921588, Apr 12, 2011

Filed:

Feb 23, 2007

Appl. No.:

11/678490

Inventors:

Kenneth W. Brown - Yucaipa CA, US
James R. Gallivan - Pomona CA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

F41A 17/00

US Classification:

42 7001, 42114, 42 7011, 89 111, 89 4101, 89 4103, 89 4105, 89 4106, 89 4107

Abstract:

A safeguard system ensures device operation in conformance with governing laws for devices such as directed energy weapons or surveillance systems, whose misuse may discomfort, harm or otherwise violate the legal rights of a person. A legal protocol is defined by rules embodying the laws that govern the use of the device and requires as inputs an authorization to use the device and input condition(s) relating to at least one of a use of the device, an attribute of a human target of the device and an operational environment of the device and human target. The safeguard system applies the rules to the authorization and input condition(s) to generate a control signal that ensures the device is used in conformance with the legal protocol. A documentation system records the authorization, input condition(s) applied rules, and control signal.

US Patent:

20110205367, Aug 25, 2011

Filed:

Feb 23, 2010

Appl. No.:

12/711062

Inventors:

Kenneth W. Brown - Yucaipa CA, US
David R. Sar - Corona CA, US
James R. Gallivan - Pomona CA, US
Wilkie M. Phillips - Rancho Cucamonga CA, US

International Classification:

H04N 5/33

US Classification:

348164, 348E0509

Abstract:

An active infrared sensor may include an imaging infrared sensor to provide an output signal conveying time-sequential infrared images of a scene which includes a subject, a beam generator to generate a millimeter wave energy beam, and a processor. An initial infrared image of the scene may be stored in a memory. After storing the initial infrared image, the beam generator may illuminate the subject with the millimeter wave energy beam. A temperature change across the subject due to the millimeter wave energy beam may be estimated based on the output signal and the stored initial infrared image. The beam generator may stop illuminating the subject when a highest temperature change across the subject is at least equal to a predetermined temperature change limit.

US Patent:

59778423, Nov 2, 1999

Filed:

Jul 1, 1998

Appl. No.:

9/108688

Inventors:

Kenneth W. Brown - Yucaipa CA
James R. Gallivan - Pomona CA
David R. Sar - Corona CA

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01P 510

US Classification:

333 26

Abstract:

A broadband, high power balun which includes plural sets of first and second coaxial cables. Each cable has a center conductor and a shield conductor. Each shield conductor of each cable within each set is connected to a shield conductor of the other coaxial cable of the set. The first input lead is connected to a first end of a center conductor of a first coaxial cable of each set. The second input lead is connected to a first end of a center conductor of a second coaxial cable of each set. A second end of a center conductor of a first coaxial cable of a set of coaxial cables provides an output lead for the balun. A second end of a center conductor of a second coaxial cable of a set of coaxial cables provides an output lead for the balun. A second end of each remaining center conductor of each coaxial cable of each set of coaxial cables is connected to a second end of a center conductor of a coaxial cable of another set of coaxial cables. The inventive balun design allows for larger center conductors and lower characteristic impedances than conventional baluns.

US Patent:

62525581, Jun 26, 2001

Filed:

Feb 18, 2000

Appl. No.:

9/507531

Inventors:

Kenneth W. Brown - Yucaipa CA
James R. Gallivan - Pomona CA

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01Q 1300

US Classification:

343781R

Abstract:

A microwave antenna and light tracking system includes a microwave antenna, a microwave source, a light sensor, and a beam-guide system. The beam-guide system has a mirror set with at least one guide microwave mirror operable to guide a microwave beam along a first portion of a microwave path toward the antenna. Each microwave mirror has embedded therein a light mirror positioned to direct a light beam along a first portion of a light path substantially coincident with the first portion of the microwave path but in a reverse direction from the antenna. The beam-guide system further includes a dichroic beam splitter including a dichroic beam splitter microwave mirror having a light-transparent window therethrough. The dichroic beam splitter is disposed in a second portion of the microwave path between the mirror set and the microwave transmit/receive device and in a second portion of the light path between the mirror set and the light sensor. The microwave source is positioned to direct a microwave signal to the dichroic beam splitter, whereupon the microwave signal is reflected along the second portion of the microwave path to the mirror set and thence to the antenna.