Brett Daniel Castile

US Patent:

8451455, May 28, 2013

Filed:

May 24, 2011

Appl. No.:

13/114651

Inventors:

Brett Castile - Del Mar CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G01B 9/02

US Classification:

356521

Abstract:

A method and apparatus incorporating an optical homodyne into a self-diffraction densitometer is disclosed. The method may include splitting a laser beam into four beams by passing the laser beam through a plurality of beam splitters, passing three beams of the four beams through a lens that focuses the three beams to minimum diffraction limited waist diameter and brings them to convergence at a convergence zone containing an analyte, generating a reference beam by passing a fourth beam of the four beams through an optical phase modulator, wherein if a medium within the convergence zone absorbs energy at a wavelength of the laser beam, a thermal representation of an interference pattern forms and spatial modulation of temperature results in a spatial modulation of refractive index, whereby a diffracted beam from energy of the three beams is produced into a propagation path of the reference beam, and passing the reference beam through the lens and the convergence zone such that the reference beam is coincident with the diffracted beam, wherein the reference beam and diffracted beams cyclically go in and out of relative phase and impinge on an optical detector.

US Patent:

8520288, Aug 27, 2013

Filed:

May 24, 2011

Appl. No.:

13/114708

Inventors:

Brett Castile - Del Mar CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G02F 1/11

US Classification:

359285

Abstract:

A method and apparatus for resonant gas phase optical phase modulation is disclosed. The method may include passing a laser beam longitudinally through a tube open to air at both ends and setting air inside the tube into resonant acoustic oscillation, thereby temporally modulating the refractive index of the air, which temporally modulates the optical phase of the laser beam.

US Patent:

44184042, Nov 29, 1983

Filed:

Oct 1, 1981

Appl. No.:

6/307403

Inventors:

Alan Gordon - San Diego CA
Stanley J. Watson - San Diego CA
Steven J. Cowen - San Diego CA
Gerald Mackelburg - San Diego CA
Brett D. Castile - Del Mar CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H04B 174
H04B 1100

US Classification:

367132

Abstract:

An apparatus and method of transmitting and receiving information underwa assure improved performance characteristics. Modulating a carrier and appropriately filtering it allows the transmission of only single sideband signals or a carrier along with single sideband signals to increase the range at reduced power consumption levels. Demodulating incoming signals can be done synchronously (when the carrier is present) or asynchronously (only single sideband signals) to extract the information. When a number of carriers are modulated and, simultaneously, are transmitted and received, the system's reliability is enhanced.

US Patent:

58286268, Oct 27, 1998

Filed:

Jan 30, 1997

Appl. No.:

8/790781

Inventors:

Brett Castile - Del Mar CA
Donald Owen - San Diego CA

Assignee:

Otincon Corporation - San Diego CA

International Classification:

G08B 1316

US Classification:

367 93

Abstract:

A standing wave field is generated within a protected space, the standing wave field comprising a plurality of signals traveling along a plurality of propagation paths within the protected space, the propagation paths including reflections of the signals off of objects within the protected space. A change in a predetermined characteristic of the standing wave field is detected upon the changing of a physical characteristic of an object within said protected space, and an alarm signal is generated when said change in the standing wave field is greater than a predetermined threshold value.

US Patent:

51173964, May 26, 1992

Filed:

Feb 5, 1986

Appl. No.:

6/835860

Inventors:

Brett D. Castile - Del Mar CA
Shelby F. Sullivan - Solana Beach CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H04B 159

US Classification:

367 3

Abstract:

An air deployable, volumetric hydrophone array uses three horizontal booms adiating from a central hub suspended at the array operating depth. Loose lines of hydrophones are hung from pairs of points on the boom structure and hang in arcs approximating catenaries.

US Patent:

51503360, Sep 22, 1992

Filed:

Sep 3, 1991

Appl. No.:

7/758994

Inventors:

Shelby F. Sullivan - Solana Beach CA
Frank E. Gordon - San Diego CA
Brett D. Castile - Del Mar CA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G01S 1500

US Classification:

367103

Abstract:

A Frequency Dispersive Transmitting Array (30) for propagating composite e energy (10) emulates narrow-band beams (20) of different frequencies which can be simultaneously radiated in all directions, or in any subset of directions, relative to an array (42) of radiating elements (32) because of the addition and cancellation of components of wave energy (10) radiated, is disclosed. A signal source (34) provides input signals (36), having frequencies which may be acoustic or electromagnetic, which are coupled by feedline (37) to radiating elements (32) through a plurality of time delay devices (38). Each one of time delay devices (38) is interposed between successive ones of radiating elements (32) and delays emission of replicas of signals (36) therefrom by a time delay. tau. sub. 0 which is a multiple of the period of the dominant frequency radiated in a direction broadside to the array. Window weighting function devices (40) are coupled into feedline (37) modifying signals (36) ahead of radiating elements (32) to control the behavior of side lobes of the beam as in a conventional beam-forming array.