Douglas S Spencer

US Patent:

6674853, Jan 6, 2004

Filed:

Nov 22, 2000

Appl. No.:

09/718909

Inventors:

Joel Ezell - Broomfield CO
John S. Helton - Ascot, GB
Norman W. Petty - Boulder CO
Douglas A. Spencer - Boulder CO
Wayne A. Zakowski - Boulder CO

Assignee:

Avaya Technology Corp. - Basking Ridge NJ

International Classification:

H04M 300

US Classification:

379242, 37921102, 370401

Abstract:

allowing a central business communication system to handle all aspects of call setup on a remote switch. Call control for a telecommunication call set up on a remote switch continues to be handled by the central business communication system; however, the switching of the bearer channels is performed automatically on the remote switch if the telecommunication call is between telecommunication terminals on the remote switch. In addition, if the telecommunication call is between two remote switches, the remote switches will automatically communicate the bearer channels through an interconnecting media without going through the central business communication system. In addition, when an Internet protocol (IP) such as IETF RFC 791 is utilized to communicate the bearer channels between the central business communication system and the remote switch, multi-frequency dialing tones received from analog telephones connected to the remote switching network are converted to digital information before transmission via the IP communication channels to the central business telecommunication system.

US Patent:

7180869, Feb 20, 2007

Filed:

Aug 30, 2001

Appl. No.:

09/943283

Inventors:

Douglas A. Spencer - Boulder CO, US

Assignee:

Avaya Technology Corp. - Basking Ridge NJ

International Classification:

G08C 15/00
H04M 9/08

US Classification:

370252, 37940601

Abstract:

Providing a systematic and comprehensive mechanism for applying echo cancellation within a telecommunication switching system by a local switching system such as a PBX. Echo cancellation circuits are deployed throughout the telecommunication switching system using different types of echo cancellation circuits with each type having different capabilities with respect to a time offset of an echo return signal relative to when an voice signal was generated by a talker. The echo cancellation circuits deployed within the local telecommunication switch are an integral part of trunk circuits and provide the largest time offset. Further, the echo cancellation circuits deployed within in the local telecommunication switch are capable of controlling echoes in either direction with respect to the integral trunk circuit and may be used as service circuits if not needed by the integral trunk circuit. A systematic and comprehensive mechanism further comprises terminating echoes at the edges of networks having long transmission delays such as a wide area network (WAN) comprising a combination of ATM and/or IP switching networks. The mechanism enables uniformity in policing echoes at the “near end” at the appropriate points in the PBX network or in a network of PBX's.

US Patent:

7370703, May 13, 2008

Filed:

Dec 9, 2005

Appl. No.:

11/298784

Inventors:

Freeman L. Hill - Houston TX, US
Douglas W. Spencer - Traverse City MI, US
Jerry E. Miller - Traverse City MI, US
Chris Walter - Empice MI, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 29/00

US Classification:

166298, 166 558, 82 82

Abstract:

The casing cutter disclosed herein is useful for severing downhole tubulars and comprises a body, slips, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. The casing cutter can be anchored within casing wellbore with the slips to provide anchoring support during the cutting operation. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blades away from the cutting head. The cutting blades are actuated by a hydraulic motor operatively coupled to the cutting blades by a series of gears.

US Patent:

8035374, Oct 11, 2011

Filed:

Oct 3, 2008

Appl. No.:

12/245054

Inventors:

Bruce I. Girrell - Traverse City MI, US
Thomas A. Johnson - Kalkaska MI, US
Ameet V. Joshi - Traverse City MI, US
Douglas A. Spencer - Williamsburg MI, US

Assignee:

Microline Technology Corporation - Traverse City MI

International Classification:

G01V 3/00

US Classification:

324303

Abstract:

A tool disposable within a well pipe, such as for detecting a freepoint of a well pipe, includes an electromagnet capable of inducing a magnetic field within a wall of a well pipe. The tool includes a Barkhausen noise sensing device capable of sensing magnetic Barkhausen noise in response to the electromagnet inducing the magnetic field within the wall of the well pipe. The tool may be moved along the well pipe so as make two passes of the tool along the well pipe, with one pass being performed while the well pipe is less stressed and the other pass being performed while the well pipe is more stressed, with the output of the tool during a first pass being compared to the output of the tool during a second pass to determine the location of the freepoint of the well pipe.

US Patent:

8261623, Sep 11, 2012

Filed:

Jul 8, 2008

Appl. No.:

12/169269

Inventors:

Jerry E. Miller - Traverse City MI, US
Randall L. Perrin - Grawn MI, US
James D. Anderson - Kingsley MI, US
Jabin D. Reinhold - Traverse City MI, US
Douglas W. Spencer - Williamsburg MI, US

Assignee:

Microline Technology Corporation - Traverse City MI

International Classification:

G01M 99/00

US Classification:

738658

Abstract:

An inline tool tracking system for tracking an inline tool traveling along a pipe includes a detection and communication device operable to detect an inline tool as it passes generally near the device. The detection and communication device is operable to generate a detection output, which includes data indicative of the detection of the tool and a geographical location of the device. A control is operable to wirelessly receive the detection output and to process the detection output. The control generates a control output responsive to the processing, and the control output is indicative of the detection of the tool and the geographical location of the detection and communication device. A display device receives an input indicative of the control output and displays the information indicative of the detection of the tool and the geographical location of the detection and communication device to a user of the display device.

US Patent:

20030081756, May 1, 2003

Filed:

Oct 23, 2001

Appl. No.:

10/037583

Inventors:

Norman Chan - Louisville CO, US
Douglas Spencer - Boulder CO, US

International Classification:

H04M003/00
H04M005/00

US Classification:

379/243000, 379/088010

Abstract:

Classifying a call to a called destination endpoint by a call classifier. The call classifier is responsive to information received from the called destination endpoint to perform the call classification.

US Patent:

20030088403, May 8, 2003

Filed:

Oct 23, 2001

Appl. No.:

10/037590

Inventors:

Norman Chan - Louisville CO, US
Sharmistha Das - Broomfield CO, US
Douglas Spencer - Boulder CO, US
Danny Wages - Boulder CO, US

International Classification:

G10L021/00

US Classification:

704/213000

Abstract:

Classifying a call to a called destination endpoint by a call classifier. The call classifier is responsive to information received from the called destination endpoint to perform the call classification.

US Patent:

20030120923, Jun 26, 2003

Filed:

Dec 21, 2001

Appl. No.:

10/028004

Inventors:

Robert Gilman - Broomfield CO, US
Richard Robinson - Broomfield CO, US
Douglas Spencer - Boulder CO, US

Assignee:

Avaya Technology Corp.

International Classification:

H04L009/00

US Classification:

713/170000

Abstract:

A secure data authentication apparatus for authenticating the source of a software file for use on a computer system having a secure processing device. The secure data authentication apparatus further authenticating an owner of the software file and authenticates that the owner of the software file is the owner of the computer system that the software file is being installed on. The software file comprising a first source signature and a unique owner signature. The secure processing device generating a second source signature and a second owner signature, wherein if the first and second source signatures match and first and second owner signatures match, the computer system operates accepts the software file as being authenticated for the owners use and from the source represented by the first source signature.