John Paul Huffman

US Patent:

6351126, Feb 26, 2002

Filed:

May 15, 2000

Appl. No.:

09/571623

Inventors:

Michael Shane Belew - Columbus OH
Hossein Eslambolchi - Los Altos Hills CA
John Sinclair Huffman - Conyers GA

Assignee:

ATT Corp. - New York NY

International Classification:

G01R 1900

US Classification:

324326, 324 67

Abstract:

Location of an underground utility conveyance having a metallic part ( ) running along its length is enhanced by providing a plurality of selective conduction units ( ) spaced along the length of the conveyance. Each selective conduction unit selectively shunts the metallic part of the conveyance to ground at a point between its first and second ends in response to a particular pattern of pulses modulated onto the locating tone impressed on the metallic part by a cable-locating signal generator ( ) to cause only that portion of the metallic part lying between the first end and said point to radiate the locating signal. In this way, the amplitude of the locating signal radiated above the earth for locating purposes is increased.

US Patent:

6515480, Feb 4, 2003

Filed:

Aug 31, 2001

Appl. No.:

09/944031

Inventors:

Michael Shane Belew - Columbus OH
Hossein Eslambolchi - Los Altos Hills CA
John Sinclair Huffman - Conyers GA

Assignee:

ATT Corp. - New York NY

International Classification:

G01V 308

US Classification:

324326, 175 40

Abstract:

The location of a casing ( ) as it is pushed through the earth during installation is monitored by transmitting a locating signal into a water reservoir ( ) that supplies water into an auxiliary water pipe ( ) that runs substantially the length of the casing for the purpose of monitoring the level of the casing. The water carries the signal into the pipe so that the signal radiates above the ground along the length of the casing. By detecting the signal via a cable locator ( ), the location of the casing can be monitored during installation.

US Patent:

6556724, Apr 29, 2003

Filed:

Nov 24, 1999

Appl. No.:

09/449112

Inventors:

Paul Joseph Chang - Allison Park PA
John C. Huffman - Menlo Park CA
Bradford V. Hebert - Piedmont CA

Assignee:

Stentor Inc. - Brisbane CA
University of Pittsburgh - Pittsburgh PA

International Classification:

G06K 954

US Classification:

382299, 382305, 382298, 382128, 345 12, 345 33, 348 1412, 707526, 707516

Abstract:

An image collaboration system conducts resolution independent image collaboration among a host computer and participating client computers. The subject of the image collaboration involves at least one source image. The source image is transformed into a hierarchical representation, such that each level of the hierarchical representation is sufficient to reconstruct the source image at a given resolution. The host computer displays, at a first resolution, an image based on one or more of the source images. To conduct the resolution independent image collaboration, the host computer generates a resolution independent description of the image, which describes the first display image relative to the source image, and broadcasts the resolution independent description of the image to the participating clients. In response, the participating clients generate an image from the resolution independent description of the image at the host computer at a resolution sufficient for display at the participating clients. Resolution independent image collaboration for use in a medical informatics system is also disclosed.

US Patent:

6644869, Nov 11, 2003

Filed:

Sep 17, 2002

Appl. No.:

10/245667

Inventors:

Michael Shane Belew - Columbus OH
Leon B. Dent - Brigham City UT
Hossein Eslambolchi - Los Altos Hills CA
John Sinclair Huffman - Conyers GA

Assignee:

ATT Corp. - New York NY

International Classification:

H01R 6255

US Classification:

385 95

Abstract:

A conductive splint for repairing a damaged metallic sheath of a fiber optic cable includes a C-shaped stabilization element that spans the damaged area and a conductive stabilization component that attaches to the C-shaped stabilization element and provides for electrical connection across the section of damaged sheath. The conductive stabilization component includes a pair of end clamps that have an inner barbed surface for penetrating into and contacting the metallic sheath, and a conductive brace that is coupled between the clamps, the combination of the clamps and brace forming an electrical path across the damaged section. A heat shrink blanket is used to encapsulate the combination of the C-shaped element and conductive stabilization component, preventing further corrosion in the damaged section.

US Patent:

6758499, Jul 6, 2004

Filed:

Jul 2, 2002

Appl. No.:

10/188738

Inventors:

Michael Shane Belew - Columbus OH
Leon B. Dent - Brigham City UT
Hossein Eslambolchi - Los Altos Hills CA
John Sinclair Huffman - Conyers GA

Assignee:

ATT Corp. - New York NY

International Classification:

F16L 5518

US Classification:

285 15, 285 16, 425 11, 138 99

Abstract:

A system and method for making a repair to a damaged section of a conduit includes a pair of couplers, which securely mate, with undamaged sections of the conduit, which straddle the damaged section of the conduit; and a bridging duct, which replaces the damaged section. In one embodiment, the couplers are placed around the undamaged section of the conduit and the bridging duct is placed around the couplers.

US Patent:

6895671, May 24, 2005

Filed:

Jul 26, 2002

Appl. No.:

10/207417

Inventors:

Michael Shane Belew - Columbus OH, US
Leon B. Dent - Brigham City UT, US
Hossein Eslambolchi - Los Altos Hills CA, US
John Sinclair Huffman - Conyers GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

B21F013/00
H02G001/12

US Classification:

30 904, 30 901, 81 94

Abstract:

A metal tube slitter is presented. A housing includes a drive shaft for moving cable through the housing and a blade truck. The blade truck houses a blade used for penetrating the cable. A shoulder screw adjusts the blade truck and as a result adjusts the penetration of the blade into the cable. The drive shaft is attached to a drive knob. As the drive knob is rotated the drive shaft also rotates and moves the cable through the metal tube slitter. After the blade penetrates the cable, the blade cuts the cable as the cable is moved through the metal tube slitter by the drive shaft.

US Patent:

6938211, Aug 30, 2005

Filed:

Nov 24, 1999

Appl. No.:

09/449015

Inventors:

Paul Joseph Chang - Allison Park PA, US
John C. Huffman - Menlo Park CA, US
Benjamin J. McCurtain - San Francisco CA, US
Jonathan Reis - Los Gatos CA, US
Bradford V. Hebert - Piedmont CA, US

Assignee:

University of Pittsburgh of the Common Wealth System of Higher Education - Pittsburgh PA
Stentor, Inc. - Brisbane CA

International Classification:

G09G005/00

US Classification:

715733, 715744, 715748, 709203

Abstract:

An image transfer object is disclosed that provides the necessary mechanism to conduct a dynamic transfer operation. The image transfer object includes a static reference to dynamic data. The image data is “dynamic”, in that the user may request additional views of the image. An image recipient computer receives the static reference to identify a source image on a server, and generates a first request, based on the static reference, for a view of the source image to the server. In response, the server transmits data to the image recipient computer. The image recipient computer displays the first view of the source image for viewing by the user. The user may then select a different portion of the source image, and/or a different resolution to designate a second view of the source image. The image recipient computer generates a second request to the image server for the second view, and the image server transmits additional data to generate the second view of the source image. Thereafter, the second view of the source image is displayed at the image recipient computer.

US Patent:

6944378, Sep 13, 2005

Filed:

Dec 26, 2003

Appl. No.:

10/747323

Inventors:

Michael Shane Belew - Columbus OH, US
Hossein Eslambolchi - Los Altos Hills CA, US
John Sinclair Huffman - Conyers GA, US
Lenny J Vohs - Spring Hill KS, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G02B006/42

US Classification:

385 52

Abstract:

The present invention is an apparatus and method for coupling optical fibers having disparate connectors. First and second indexing bodies are moved relative to each other to bring into alignment selected receptors for accepting the disparate connectors. Receptors for several different connectors are available on at least one of the indexing bodies. The indexing bodies may be disk-shaped and attached for rotation about a common axis, with the receptors being arranged circumferentially. The apparatus may also includes a spring clip and magnet for mounting and storing on fiber optic bays and cabinets.