John E Mcgreevy

US Patent:

D482016, Nov 11, 2003

Filed:

Jun 18, 2002

Appl. No.:

29/162513

Inventors:

Mark B. Howe - Sterling VA
John E. McGreevy - Lancaster VA
Matthew G. Johnson - Vienna VA

Assignee:

Freeport Technologies, Inc. - McLean VA

International Classification:

1401

US Classification:

D14172, D14125

US Patent:

8149262, Apr 3, 2012

Filed:

Apr 2, 2008

Appl. No.:

12/061451

Inventors:

Richard W. Tucker - Lancaster VA, US
Gregory J. McGreevy - Great Falls VA, US
Joseph A. Sorenson - Coon Rapids MN, US
Timothy J. Ebben - Spring Park MN, US
Kevin A. Job - Monticello MN, US
Jan M. Timmer - Ashburn VA, US
Sergio Jason Delhoyo - Leesburg VA, US
John E. McGreevy - McLean VA, US

Assignee:

Freeport Technologies - Herndon VA

International Classification:

H04M 11/00

US Classification:

348 1409, 348 1408

Abstract:

A method, system, and computer program product are disclosed to manage multiple operating modes in a video conferencing network under which different sets of policies can operate. The system is a network management server, also referred to herein as the ELASTIC GATEKEEPER™, that includes a Conference Management System, which selectively implements one or more different sets of operating policies. The Conference Management System is integrated and linked with a gatekeeper, which is responsible for setting up calls that are using end point alias addresses. The gatekeeper works with the Conference Management System to control access to network resources. Upon receiving a request to access a call, the gatekeeper passes the request to the Conference Management System for its approval. The Conference Management System has access to a robust set of policies, a detailed description of the network resources, and an awareness of the current System Operational Mode upon which to base a decision about the conditions and resources that can be granted to the requested call.

US Patent:

49202634, Apr 24, 1990

Filed:

Jan 26, 1988

Appl. No.:

7/148729

Inventors:

Keith S. Fimian - Dunn Loring VA
John E. McGreevy - McLean VA
Brian P. Fimian - Falls Church VA
Richard W. Tucker - Timonium MD

Assignee:

Gemini Research, Inc. - McLean VA

International Classification:

G01T 120
G01V 500

US Classification:

250255

Abstract:

A radon detection system is provided with the capability of monitoring certain environmental parameters together with certain other conditions indicative of possible tampering. The environmental data allows the calculation of an accurate projection of average long-term radon levels in the structure under test on the basis of a relatively short measurement period, while the tamper data indicates whether an attempt has been made to tamper with the detection unit or the measurement conditions during the test period. When an indication of possible tampering occurs, the system enters an accelerated data collection mode during which data is gathered that can later be used to determine whether tampering has actually occurred. The detection system may be provided with first and second detectors for separately monitoring airborne levels of radon gas and radon decay products. The radon gas detector may include a scintillation cell, and means may be provided to purge and then bypass the scintillation cell when high radon gas concentrations are detected.

US Patent:

52351904, Aug 10, 1993

Filed:

Jan 29, 1991

Appl. No.:

7/647558

Inventors:

Richard W. Tucker - Timonium MD
John E. McGreevy - McLean VA

Assignee:

Gemini Research, Inc. - Cockeysville MD

International Classification:

G01T 704

US Classification:

250435

Abstract:

A continuous air monitor is provided with the capabilities of monitoring certain transuranic and other airborne radioactive particulate with high accuracy and low false alarm rates in the presence of radon and thoron daughter products. A multiple filter sampling approach is used wherein air flow is directed on a alternating basis to each sampling filter in turn. Each filter collects particulate in the size range of interest. Beta and/or alpha activity can be continuously measured on each filter. The air flow can be directed through a chamber where radon and/or thoron gas portions of the air may decay into their daughters and the quantities thereof may be separately measured.