John M Desalvo

US Patent:

6560257, May 6, 2003

Filed:

Nov 28, 2000

Appl. No.:

09/724255

Inventors:

John DeSalvo - Satellite Beach FL
Michael Lange - Palm Bay FL
Alan Williams - Palm Bay FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H01S 300

US Classification:

372 3802, 372 29015, 372 3807, 372 381

Abstract:

A laser driver circuit includes an injection laser diode. A current source control loop circuit is connected to the injection laser diode and establishes a fixed current through the injection laser diode. A voltage switcher circuit is connected to the injection laser diode and current source control loop circuit and adapted to receive a fixed supply voltage and convert inductively the supply voltage down to a forward voltage to bias the injection laser diode and produce an optical fiber coupled laser output having minimized power losses.

US Patent:

6748179, Jun 8, 2004

Filed:

Mar 7, 2001

Appl. No.:

09/801103

Inventors:

Michael Lange - Palm Bay FL
Edward Tegge - Palm Bay FL
John DeSalvo - Satellite Beach FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04B 1000

US Classification:

398177, 398 33

Abstract:

The system and method of the present invention is operative to monitor the performance of an optical communications channel. An optical splitter splits a wavelength division multiplexed (WDM) optical communications signal into a low power WDM signal onto a back-up path, where a tunable filter sweeps the optical communications channels, while a monitoring circuit monitors the optical communications channels for performance. Optical power can be stored and subsequently displayed, providing an optical spectrum analysis of the signal.

US Patent:

6944404, Sep 13, 2005

Filed:

Mar 19, 2001

Appl. No.:

09/812236

Inventors:

Michael Lange - Palm Bay FL, US
John DeSalvo - Satellite Beach FL, US
Edward Tegge - Palm Bay FL, US
John Dodzweit - Satellite Beach FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04J014/02
H04B010/00

US Classification:

398138, 398 79, 398135, 398139

Abstract:

A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signals into a multimode wavelength division multiplexed optical communications signal. A demultiplexer receives a multimode wavelength division multiplexed optical communications signal and demultiplexes the signal into a plurality of demultiplexed optical communications signals that are then received and detected within a plurality of optical receivers.

US Patent:

6980747, Dec 27, 2005

Filed:

Nov 28, 2000

Appl. No.:

09/724256

Inventors:

John DeSalvo - Satellite Beach FL, US
Michael Lange - Palm Bay FL, US
Scott Bricker - Palm Bay FL, US
Randall K. Morse - Palm Bay FL, US
Jane Claire White - Melbourne FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04B010/06

US Classification:

398202, 398206, 398207, 398208, 398209, 398214, 398 79, 398 82, 398147, 398149, 398158, 398160, 398164, 359341, 359337, 359345, 385 48, 356 731

Abstract:

An integrated, optically amplified receiver includes an optically pumped optical preamplifier for receiving, generally, wavelength division multiplexed optical communication signal over an optical communications line. A PIN photodetector receives the optical communication signal as a filtered demultiplexed signal from the optical preamplifier and converts the optical communication signal into an electrical communication signal. An amplifier circuit amplifies the electrical communication signal for digital retiming or demodulation. A housing or printed circuit card assembly contains the optical preamplifier, filter or demultiplexer, PIN photo detector and amplifier circuit as an integrated receiver unit.

US Patent:

7164863, Jan 16, 2007

Filed:

Jun 9, 2005

Appl. No.:

11/149474

Inventors:

Michael Lange - Palm Bay FL, US
John DeSalvo - Satellite Beach FL, US
Edward Tegge - Palm Bay FL, US
John Dodzweit - Satellite Beach FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04J 14/00
H04J 14/02
H04B 10/20
H04B 10/00

US Classification:

398 79, 398 45, 398 58, 398135, 398138, 398139, 398164

Abstract:

A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signals into a multimode wavelength division multiplexed optical communications signal. A demultiplexer receives a multimode wavelength division multiplexed optical communications signal and demultiplexes the signal into a plurality of demultiplexed optical communications signals that are then received and detected within a plurality of optical receivers.

US Patent:

7522702, Apr 21, 2009

Filed:

Aug 29, 2006

Appl. No.:

11/511671

Inventors:

John Richard DeSalvo - Satellite Beach FL, US
Charles M. Newton - Palm Bay FL, US
Carol Ann Gamlen - Melbourne FL, US
William Thomas Silfvast - Saint Helena CA, US
Gregory Michael Shimkaveg - Oviedo FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

G21K 5/00

US Classification:

378 64, 378122

Abstract:

A method is provided for decontaminating biological pathogens in a contaminated environment. The method includes: tailoring x-ray radiation to match the absorption characteristics of a contaminated environment; generating x-ray radiation having a diffused radiation angle in accordance with the absorption characteristics of the contaminated environment; and directing the x-ray radiation towards the contaminated environment.

US Patent:

7580506, Aug 25, 2009

Filed:

Jan 29, 2007

Appl. No.:

11/699443

Inventors:

John R. DeSalvo - Satellite Beach FL, US
Charles M. Newton - Palm Bay FL, US
William T. Silfvast - Saint Helena CA, US
Gregory M. Shimkaveg - Oviedo FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

G21K 5/00
H01J 35/14

US Classification:

378 64, 378138

Abstract:

A method is provided for decontaminating biological pathogens residing in an enclosure of an electronic device. The method includes: identifying materials used to encase the enclosure of the electronic device; tailoring x-ray radiation to penetrate the materials encasing the enclosure; and directing x-ray radiation having a diffused radiation angle towards the electronic device.

US Patent:

7660392, Feb 9, 2010

Filed:

Nov 26, 2007

Appl. No.:

11/986703

Inventors:

John Richard DeSalvo - Satellite Beach FL, US
Carol Ann Gamlen - Melbourne FL, US
Charles M. Newton - Palm Beach FL, US
William T. Silfvast - Saint Helen CA, US
Gregory M. Shimkaveg - Oviedo FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H01J 35/08

US Classification:

378124, 378141

Abstract:

A pixel array arrangement is provided for a soft x-ray source. The arrangement includes: a window-frame structure having a plurality of channels passing therethrough, where each channel forms a pixel for the x-ray source; a cathode disposed on one side of each channel in the window-frame structure and operable to emit electrons into the channel; and an anode disposed in each cavity on an opposing side of the channel from the cathode and operable to emit x-ray radiation when electrons from the cathode impinge thereon, where the anode is configured to emit x-ray radiation at a diffused angle such that the x-ray radiation from a given pixel overlaps with x-ray radiation from adjacent pixels.