Douglas C 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:

8342796, Jan 1, 2013

Filed:

Apr 29, 2008

Appl. No.:

12/111726

Inventors:

Douglas Spencer - Mesa AZ, US
Mohsiul Alam - Chandler AZ, US
Griff Kinsinger - Chandler AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01D 25/04

US Classification:

415113, 384 99

Abstract:

Damping systems and engines including the damping systems are provided. In one embodiment, and by way of example only, the damping system includes a rotor, a bearing assembly mounted to the rotor, a spring cage disposed around the bearing assembly, an axially-extending housing surrounding the spring cage, a first squeeze film damper formed between the bearing assembly and the spring cage, and a second squeeze film damper formed between the spring cage and the axially-extending housing.

US Patent:

8596417, Dec 3, 2013

Filed:

Jul 5, 2011

Appl. No.:

13/176421

Inventors:

Rich Barrett - Mesa AZ, US
Larry Ball - Chandler AZ, US
Douglas Spencer - Mesa AZ, US
Victor Reyes - Chandler AZ, US
Don Rossi - Scottsdale AZ, US
Alan Tiltman - Fountain Hills AZ, US
Daniel Troller - Fountain Hills AZ, US
James Ebken - Gilbert AZ, US
Mike O'Brien - Goodyear AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01M 1/18
F01M 11/10
F01D 25/18

US Classification:

184 611, 184 64

Abstract:

A lubrication system is provided for delivering a lubricant to a plurality of nozzles. The lubrication system includes a reservoir for the lubricant; a pump fluidly coupled to the reservoir and configured to remove a flow of the lubricant from the reservoir; a lubrication sensor positioned between the pump and the plurality of nozzles and configured to detect a blockage in the plurality of nozzles and to generate a blockage signal when the blockage is detected; and an indicator coupled to the lubrication sensor and configured to generate a warning based on the blockage signal from the lubrication sensor.

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.

US Patent:

43982875, Aug 9, 1983

Filed:

Sep 1, 1981

Appl. No.:

6/298381

Inventors:

Douglas A. Spencer - Boulder CO

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H04J 302
H04Q 1104

US Classification:

370 85

Abstract:

In a PAM bus switching bus which normally handles analog voice signals, the different DC offsets caused by the different buffing, summing and distribution amplifiers cause no ill effects because DC voltages are not passed by the remainder of the support elements. However, when it is attempted to switch logic level DC signals through such a PAM bus network, the DC offset which is an indeterminate function of the particular switching path established, makes it impossible to establish a uniform slicing level. In the illustrative embodiment a uniform slicing level is achieved by clamping the summing bus of the PAM system during a preamble of the time slot, measuring the offset on the distribution bus and then applying the measured offset to compensate the distribution bus during the remainder of the time slot when the actual data signal is allowed to be applied to the summing bus.