Dennis Paul Davis

US Patent:

20030007758, Jan 9, 2003

Filed:

Jul 3, 2001

Appl. No.:

09/898288

Inventors:

Gary Rose - Boca Raton FL, US
Dennis Davis - Eustis FL, US

International Classification:

G02B006/04
G02B006/36

US Classification:

385/115000, 385/137000, 385/139000

Abstract:

A high precision fiber array connector and its cost-effective method of manufacture are disclosed. Extreme accuracy is achievable in a process for molding the connector faceplate. It is this faceplate which retains the fibers of the array at requisite lateral and angular tolerances. Additionally mechanical, magnetostatic, and electrostatic methods of fiber positioning and insertion into the connector faceplate are disclosed.

US Patent:

54757037, Dec 12, 1995

Filed:

Oct 11, 1994

Appl. No.:

8/321224

Inventors:

Stanley J. Scalise - Palm Beach Gardens FL
Dennis W. Davis - Boca Raton FL

International Classification:

H01S 3097

US Classification:

372 82

Abstract:

A radio frequency (RF)-excited waveguide laser of improved efficiency is disclosed. Features which contribute to efficiency include a constriction in the RF cavity cross section which effects an intense, uniform electric field in the gas discharge region, discontinuities in the electrode surfaces bounding the discharge gap region which defeat longitudinal resonances in the RF cavity and thereby provide longitudinal uniformity in the gap region electric field, and dielectric tube(s) for confining gas in the discharge gap region. Additional versions of the invention include open-loop and closed-loop frequency tuning of the laser RF cavity and modular RF cavities which can be connected to achieve higher optical output power.

US Patent:

51665077, Nov 24, 1992

Filed:

Jan 31, 1992

Appl. No.:

7/829800

Inventors:

Dennis W. Davis - Boca Raton FL
William F. Conley - Hollywood FL
Donald J. Link - Jupiter FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G01J 120

US Classification:

2502019

Abstract:

A lider countermeasure receives an interrogating laser beam and returns a beam having a distorted phase point such that the interrogating system generates a false angular portion for the returned radiation. The false phase front is achieved by independent manipulations of the amplitude and phase of the returned signal.

US Patent:

51636905, Nov 17, 1992

Filed:

Apr 19, 1990

Appl. No.:

7/511242

Inventors:

Dennis W. Davis - Boca Raton FL
Keith C. Hyatt - Wake Forest NC
Russell D. Davis - Boca Raton FL

International Classification:

A63F 924

US Classification:

273460

Abstract:

A three-dimensional display system for co-spatial point display of information emanating from at least two biophysical sources. The system includes a rigid, transparent three-dimensional structure within which is provided co-spatial visual display elements arranged in a three-dimensional geometry at regular coordinate addresses. Information input terminals, including terminals for biological interface, are provided. Also furnished is logic for assigning a three-dimensional coordinate address, at uniform time intervals, for the informational input from each of the biological sources. Each of the display elements are energized in a fashion that is input-responsive to the coordinate addresses corresponding to the system inputs. The system is further provided with detectors for alerting the users to spatial and temporal coincidence of energized visual elements resultant from simultaneous inputting of like coordinate addresses by the biophysical source.

US Patent:

58100148, Sep 22, 1998

Filed:

Mar 25, 1997

Appl. No.:

8/827032

Inventors:

Dennis W. Davis - Boca Raton FL
Jaime R. Roman - Palm Beach Gardens FL
James H. Michels - Clinton NY

International Classification:

A61B 500

US Classification:

128923

Abstract:

The invention described herein is directed to a method and associated system for the detection of various physiological conditions using multichannel sensor data. Truth data organized in the form of a vector sequence is used to generate a multichannel state variable model for a given known physiological condition. Such state variable models are obtained using one or more of a host of system identification algorithms. Upon identification of the model parameters, a multichannel inverse filter is derived from the model parameters. The inverse filter can be used to whiten or decorrelate sensor data sequences that are associated with the given physiological condition. The degree of whitening is a measure of the match of an unknown physiological condition with that physiological condition represented by the data used to generate the filter. On this basis, a number of such filters can be produced for a variety of physiological conditions. In a preferred embodiment, these filters operate in parallel on a given multichannel data sequence that represents an unknown physiological condition.

US Patent:

45545472, Nov 19, 1985

Filed:

Dec 13, 1982

Appl. No.:

6/449064

Inventors:

Brendan J. Spratt - Boca Raton FL
David J. Pryor - N. Lauderdale FL
James B. Jones - Deerfield Beach FL
Dennis W. Davis - Boca Raton FL
Richard V. Frazier - Boulder Heights CO

Assignee:

Allied Corporation - Morristown NJ

International Classification:

G01S 1308

US Classification:

343 73

Abstract:

A range processor for airborne distance measuring equipment in which coherency of reply signals from the ground based DME station is determined by incrementing the contents of storage locations of a random access memory device for each reply signal according to the time of reception of the reply signal and for decrementing the contents of the storage location if no reply signal is received. Whenever the contents of a storage location exceeds a threshold value a range gate is generated so that the next reply received within the range gate causes the time of reception of the reply to be stored as range data.

US Patent:

51665085, Nov 24, 1992

Filed:

Sep 20, 1991

Appl. No.:

7/763023

Inventors:

Dennis W. Davis - Boca Raton FL
Jeffrey A. Shimizu - Crompound NY

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G01J 120

US Classification:

2502019

Abstract:

An optical processing system for controlling a deformable mirror employs iterative constrained deconvolution of an actuator influence function with a set of optical representations of spatial impulse functions related to the settings of the actuators. An input optical beam is first transformed to a beam having a uniform phase amplitude proportional to the phase of the incoming beam at corresponding locations.

US Patent:

51875985, Feb 16, 1993

Filed:

Aug 26, 1991

Appl. No.:

7/749752

Inventors:

Thomas J. Posluszny - Juno Isles FL
Dennis W. Davis - Boca Raton FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

G03H 116
G02B 2746
G06E 300

US Classification:

359 29

Abstract:

A pulse train in the presence of random noise and other pulse trains is identified by controlling pixels in a raster display in accordance with incoming signals; using the raster display to modulate a laser beam with the pulses; Fourier-transforming the modulated beam, then performing a Cartesian to polar coordinate transformation on the Fourier-transformed beam; inverse Fourier transforming the coordinate-transformed beam, and passing the result through a line spatial filter and focusing the filtered beam on a one-dimensional detector array.