Harold E Stewart

US Patent:

6958690, Oct 25, 2005

Filed:

Jun 10, 2003

Appl. No.:

10/458351

Inventors:

Michael L. Asher - Green Grove Springs FL, US
Udaya Bhaskar Natha - Alpharetta GA, US
Charles C. Giddens - Conyers GA, US
Harold Jeffrey Stewart - Alpharetta GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G08B001/00

US Classification:

340531, 34031001, 34053913, 3409951, 702 5, 702 6

Abstract:

The present invention provides a most efficient, automated, fast and least expensive method and apparatus for processing the dig ticket alerts to prevent damage of underground facilities. All the functions required to process the ticket alerts are handled by one system called the geolink (geographical link to data) fiber integrity, i. e. GFI. The processing includes checking the ticket alerts for a dig location, automatically closing the ticket alerts if the dig location is not touching a cable buffer and forwarding the ticket alerts to the technician responsible for the ticket alert if the dig location is touching the cable buffer. The GFI system will receive and process thousands of dig ticket alerts on a daily basis without depending on any other system.

US Patent:

6965309, Nov 15, 2005

Filed:

Apr 8, 2003

Appl. No.:

10/409229

Inventors:

Peter P. Bleznyk - Roswell GA, US
John Steven Engelmann - Roswell GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Charles C. Giddens - Conyers GA, US
David H. Lu - Morganville NJ, US
Kenneth James Smith - Dacula GA, US
Anthony M. Srdar - Alpharetta GA, US
Harold Jeffrey Stewart - Alpharetta GA, US
John Vincent Wilson - Conyers GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G08B019/00

US Classification:

340521, 340506, 340524, 370216

Abstract:

In accordance with the teachings of the present invention, a method is presented for displaying power and heat faults that occur in a network. A server initiates a variety of power alarm display methods. Each method is directed at receiving specific types of power alarm information and displaying or inhibiting the display of this information on a wallboard. The methods operate simultaneously and update the wallboard with power alarm information in near real time. Further, the methods continue to operate and update the display of the power alarm information when tickets associated with the alarms are received or when an operator acknowledges the alarm.

US Patent:

6989893, Jan 24, 2006

Filed:

Jul 23, 2004

Appl. No.:

10/897929

Inventors:

Michael Asher - Conyers GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Chuck Giddens - Conyers GA, US
John Sinclair Huffman - Conyers GA, US
Harold Stewart - Alpharetta GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G01N 21/00

US Classification:

356 731

Abstract:

The present invention relates to method for interpreting data obtained by measuring a length of optical fiber using an optical time domain reflectometer (OTDR), and comparing that measurement to a reference measurement. The technique uses statistical inference to determine a likely cause for a length measurement to be shorter than a reference length. One technique uses a chi-squared best fit of an array reflectance spike occurrences along the fiber to a historical reference array. In that way, it can be determined whether the missing portion of the tested fiber is at an end or between the ends, providing evidence that the short length measurement results from a fiber break or from the intentional removal of a reserve loop.

US Patent:

7002580, Feb 21, 2006

Filed:

May 14, 2003

Appl. No.:

10/438126

Inventors:

Ramakrishna Aggala - Alpharetta GA, US
Udaya Bhaskar Natha - Alpharetta GA, US
Bala Surya Siva Sri Gaddamanugu - Alpharetta GA, US
Charles C. Giddens - Conyers GA, US
Jacquenetta M. Mason - Duluth GA, US
Harold Jeffrey Stewart - Alpharetta GA, US

Assignee:

AT&T Corp - New York NY

International Classification:

G06T 11/20

US Classification:

345440

Abstract:

The present invention provides a method and apparatus for automatically generating charts, preferably in Microsoft Excel format, for the users to be able to better analyze the network data. All the functions needed to generate are performed at the network server without installing any additional components on user's server, thereby independent of any third party software. Furthermore, minimal user input is required using any kind of application without modifications.

US Patent:

7075632, Jul 11, 2006

Filed:

Oct 31, 2005

Appl. No.:

11/263495

Inventors:

Michael Asher - Conyers GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Chuck Giddens - Conyers GA, US
John Sinclair Huffman - Conyers GA, US
Harold Stewart - Alpharetta GA, US

International Classification:

G01N 21/00

US Classification:

356 731

Abstract:

The present invention relates to method for interpreting data obtained by measuring a length of optical fiber using an optical time domain reflectometer (OTDR), and comparing that measurement to a reference measurement. The technique uses statistical inference to determine a likely cause for a length measurement to be shorter than a reference length. One technique uses a chi-squared best fit of an array reflectance spike occurrences along the fiber to a historical reference array. In that way, it can be determined whether the missing portion of the tested fiber is at an end or between the ends, providing evidence that the short length measurement results from a fiber break or from the intentional removal of a reserve loop.

US Patent:

7256878, Aug 14, 2007

Filed:

May 15, 2006

Appl. No.:

11/434357

Inventors:

Michael Asher - Conyers GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Chuck Giddens - Conyers GA, US
John Sinclair Huffman - Conyers GA, US
Harold Stewart - Alpharetta GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G01N 21/00

US Classification:

356 731

Abstract:

The present invention relates to a method for interpreting data obtained by measuring a length of optical fiber using an optical time domain reflectometer (OTDR), and comparing that measurement to a reference measurement. The technique uses statistical inference to determine a whether a reference trace is valid by comparing that trace to a more recent test trace. One technique uses a chi-squared best fit of an array reflectance spike occurrences along the fiber to a historical reference array.

US Patent:

7397545, Jul 8, 2008

Filed:

Jul 16, 2007

Appl. No.:

11/879102

Inventors:

Michael Asher - Conyers GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Chuck Giddens - Conyers GA, US
John Sinclair Huffman - Conyers GA, US
Harold Stewart - Alpharetta GA, US

Assignee:

AT&T Corp. - New York NY

International Classification:

G01N 21/00

US Classification:

356 731

Abstract:

The present invention relates to a method for interpreting data obtained by measuring a length of optical fiber using an optical time domain reflectometer (OTDR), and comparing that measurement to a reference measurement. The technique uses statistical inference to determine a whether a reference trace is valid by comparing that trace to a more recent test trace. The reference trace may be replaced or an alarm may be transmitted under certain conditions.

US Patent:

7605912, Oct 20, 2009

Filed:

Jun 9, 2008

Appl. No.:

12/157297

Inventors:

Michael Asher - Conyers GA, US
Hossein Eslambolchi - Los Altos Hills CA, US
Chuck Giddens - Conyers GA, US
John Sinclair Huffman - Conyers GA, US
Harold Stewart - Alpharetta GA, US

Assignee:

AT&T Corp - New York NY

International Classification:

G01N 21/00

US Classification:

356 731

Abstract:

The present invention relates to a method for interpreting data obtained by measuring a length of optical fiber using an optical time domain reflectometer (OTDR), and comparing that measurement to a reference measurement. The technique uses statistical inference to determine a whether a reference trace is valid by comparing that trace to a more recent test trace. The reference trace may be replaced or an alarm may be transmitted under certain conditions.