Barry L Hunt

US Patent:

7027009, Apr 11, 2006

Filed:

Apr 21, 1999

Appl. No.:

09/295958

Inventors:

Richard C. Adams - San Diego CA, US
Barry R. Hunt - San Diego CA, US

Assignee:

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

International Classification:

G01R 21/00

US Classification:

343894

Abstract:

A method and apparatus for communicating simultaneously at the same frequencies includes two or more conductor-backed, spiral antennas that have been shown to exhibit linear polarization. To permit simultaneous transmission on the same frequencies, two of the linearly polarize, conductor-backed spiral antennas can be spaced vertically and be oriented so that the feed points of one antenna are orthogonal to the feed points of the second antenna. Since the specifically designed spiral antennas will be both transmitting or both receiving at orthogonally arranged polarizations, the antennas will not interfere with each other, even though communication is upon substantially the same frequencies.

US Patent:

7501726, Mar 10, 2009

Filed:

Jul 28, 2004

Appl. No.:

10/911748

Inventors:

Richard L. Waters - San Diego CA, US
Patrick M. Sullivan - San Diego CA, US
Barry R. Hunt - San Diego CA, US

Assignee:

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

International Classification:

H02K 33/00

US Classification:

310 36

Abstract:

A micro-electro-mechanical system (MEMS) power generator employing a plurality of magnetic masses disposed to oscillate on spring elements in a manner that produces an unusually steep flux gradient at one or more conductive coils, thereby harvesting a substantial portion of the available mechanical energy. The energy from ambient mechanical vibration is harvested to produce electrical power sufficient to power individual electronic elements for a variety of low-cost and high-performance distributed sensor systems for medical, automotive, manufacturing, robotics, and household applications.

US Patent:

7692340, Apr 6, 2010

Filed:

Jan 28, 2009

Appl. No.:

12/360892

Inventors:

Richard L. Waters - San Diego CA, US
Patrick M. Sullivan - San Diego CA, US
Barry R. Hunt - San Diego CA, US

Assignee:

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

International Classification:

H02K 33/00

US Classification:

310 36

Abstract:

A vibrational energy harvesting apparatus comprising: a substrate having a plurality of integral compliant regions; at least two ferromagnetic masses each coupled to a corresponding one or more of the integral compliant regions such that at least one of the ferromagnetic masses moves with respect to the substrate responsive to substrate acceleration, each ferromagnetic mass having an inner magnetic pole disposed such that the inner magnetic poles are separated by a gap, wherein the magnetic polarities of the inner magnetic poles on the opposing sides of the gap are similar; wherein the inner magnetic poles form a steep flux gradient region in and around the gap; and a coil coupled to the substrate and disposed within the steep flux gradient region where it is exposed to a changing magnetic flux arising from motion of at least one of the ferromagnetic masses with respect to the substrate.

US Patent:

8009086, Aug 30, 2011

Filed:

Aug 16, 2010

Appl. No.:

12/856878

Inventors:

Peter C. Grossnickle - San Diego CA, US
Heidi L. Buck - San Diego CA, US
Gregory Fleizach - La Jolla CA, US
Alan Fronk - Oceanside CA, US
Matthew Fong - Sunnyvale CA, US
Barry R. Hunt - San Diego CA, US
Matthew Nicholson - San Diego CA, US
Brian T. Williams - San Diego CA, US

Assignee:

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

International Classification:

G01S 19/40
G01S 19/09

US Classification:

34235723, 34235746

Abstract:

A system and process for the geo-location of an asset given no a priori knowledge regarding time and location of the asset with minimized power consumption is disclosed. In the preferred embodiment, the system is accurate to about 30 meters CEP (50% circular error probable) using just a short segment, e. g. , 100-200 ms, of digitized GPS L1 signal data.

US Patent:

41287592, Dec 5, 1978

Filed:

Nov 21, 1977

Appl. No.:

5/853157

Inventors:

Barry R. Hunt - San Diego CA
George M. Dillard - San Diego CA
Henry F. Taylor - San Diego CA

Assignee:

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

International Classification:

H04B 900

US Classification:

250199

Abstract:

A fiber optic delay line filter receives light energy input signals repretative of any form of temporally varying signals such as electrical or acoustical, for example. A plurality of fiber optic light paths each having a determinably variant optical propagation delay, receives and transmits the light energy signals. A photo responsive means receives the delayed output light energy signals transmitted by the plurality of fiber optic light paths and produces a single electrical output signal as a function of the sum of the delayed output light energy signals, thus performing a filtering or correlation function. In a preferred embodiment, an injection laser or light emitting diode may be employed as the means for converting the temporally varying input signals to commensurate light energy signals. In a variant embodiment, a single fiber optic light path, having a partially reflective surface at each end, gives effect to multiple reflective transmissions along the length of the fiber optic light path which are then detected by a photo responsive device, providing a narrowband filter output as a function of the length and number of multiple reflective transmissions.

US Patent:

20190250279, Aug 15, 2019

Filed:

Feb 14, 2018

Appl. No.:

15/896974

Inventors:

- San Diego CA, US
Barry Hunt - San Diego CA, US

International Classification:

G01S 19/09
G01S 19/24
G01S 19/25

Abstract:

A method of providing accurate position, navigation, and timing information comprising the steps of providing at least four transceiver devices, providing an auxiliary GPS device, and providing a receiver GPS device. Each transceiver devices receives a plurality of GPS signals from a plurality of GPS satellites, and calculates a transceiver position and transceiver velocity vector. The transceiver position, transceiver velocity vector, and GPS signal are repackaged at each transceiver into a first spread signal structure, which is transmitted from each transceiver as a first GPS-like signal. The GPS-like signal is received at an auxiliary GPS device, which generates a simulated GPS signal. This simulated GPS signal is then output and received by a simulated GPS device.

US Patent:

20190086530, Mar 21, 2019

Filed:

Sep 18, 2017

Appl. No.:

15/706955

Inventors:

- San Diego CA, US
Barry Hunt - San Diego CA, US

International Classification:

G01S 13/34
G01S 13/53

Abstract:

A device for detecting frequency modulated continuous wave radar includes an antenna connected to a bandpass filter. The antenna is configured to receive frequency modulated continuous wave (FMCW) pulses within a predetermined frequency range. A frequency mixer is connected to the bandpass filter and a synthesizer and is configured to mix a signal from the synthesizer with an output of the bandpass filter to produce basebanded data. A high-pass filter is configured to isolate short pulses pertaining to the basebanded data, and a low-pass filter is configured to isolate long pulses pertaining to the basebanded data. A microprocessor is configured to set thresholds for comparison with the outputs of the high-pass filter and the low-pass filter.

US Patent:

20190088165, Mar 21, 2019

Filed:

Sep 19, 2017

Appl. No.:

15/708932

Inventors:

- San Diego CA, US
Barry Hunt - San Diego CA, US

Assignee:

United States of America as represented by Secretary of the Navy - San Diego CA

International Classification:

G09C 1/00

Abstract:

A transmitter includes: a data providing component that provides data to be transmitted; a transforming component that generates transformed data based on the data to be transmitted; and a transmitting component that transmits the transformed data. The transforming component includes a modulator, a code generator and a data structure having stored therein a first mathematical function. The first mathematical function includes a primary first function term. The primary first function term includes a first parameter within a predetermined first delineated boundary of parameters. The code generator generates coded data so as to form an error-detecting code from the data to be transmitted. The modulator modulates the coded data with the primary first function term.