William L Singleton

US Patent:

6885533, Apr 26, 2005

Filed:

Oct 29, 2002

Appl. No.:

10/282349

Inventors:

William C. Singleton - Manassas VA, US
Scott C. Willis - Fairfax Station VA, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashu NH

International Classification:

G08B017/12

US Classification:

361111, 361 56

Abstract:

An electromagnetic protection ASIC that includes a high transconductance FET switch array operatively arranged to momentarily short all lines of ingress/egress to ground when triggered by a nuclear event detector.

US Patent:

20030028588, Feb 6, 2003

Filed:

Jul 31, 2001

Appl. No.:

09/917776

Inventors:

Evan McConnell - Fairfax Station VA, US
Joseph Caporaletti - Nokesville VA, US
Robert Vanderlip - Centreville VA, US
William Singleton - Manassas VA, US
Anthony Tomarchio - Manassas VA, US
Tex Rubinowitz - Springfield VA, US
Smith Bryan - Manassas VA, US
Mark Sebastian - Centreville VA, US

International Classification:

G06F015/16

US Classification:

709/203000

Abstract:

A mobile teaching system is disclosed which allows the use of personal computing devices in a learning environment. A plurality of portable computers may communicate with a portable network center to undergo lesson plans, testing, and other educational tasks. The portable computers may be stored in a fixed or mobile storage unit that may also serve as a network communications center, and may also provide power connections for the computers. The computers may include removable, rechargeable batteries, which may be recharged at the storage unit.

US Patent:

20130207713, Aug 15, 2013

Filed:

Feb 12, 2013

Appl. No.:

13/765094

Inventors:

BAE Systems Information and Electronic Systems Integration Inc. - , US
William C. Singleton - Manassas VA, US
Russell Buchanan - Arlington VA, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H03K 17/081

US Classification:

327380

Abstract:

A method for dealing with high inrush current when voltage is applied to mixed voltage logic integrated circuits is disclosed. A depletion N-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) or junction Field Effect Transistor (JFET) is added to a linear voltage regulator in mixed voltage logic integrated circuits. The Field Effect Transistor (FET) is utilized to allow the core voltage to come up with Input/Output voltage prior to turn-on of linear voltage regulator. Turn-on state of FET allows the core voltage to rise with Input/Output voltage until the FET threshold is reached across the gate. When threshold is reached, the FET turns off to allow linear voltage regulator turn on and take over supply power.

US Patent:

20210320489, Oct 14, 2021

Filed:

Apr 14, 2020

Appl. No.:

16/848527

Inventors:

- Nashua NH, US
Richard Brosh - Manassas VA, US
William C. Singleton - Manassas VA, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H02H 3/20
H02H 9/04

Abstract:

Techniques are provided for non-volatile detection of an overvoltage condition in a circuit of interest. A circuit implementing the techniques according to an embodiment includes a fuse configured to provide a non-volatile indication of an overvoltage event, the indication associated with an open state of the fuse. The circuit also includes a voltage controlled current switch coupled in series to the fuse. The voltage controlled current switch is configured to enable current flow through the fuse in response to a supply voltage exceeding a threshold value associated with the overvoltage event. The current causes the fuse to switch from a closed state to an open state providing a non-volatile record of the overvoltage event. In some embodiments, the voltage controlled current switch can be a Zener diode with a breakdown voltage based on the threshold value, or a transistor configured to switch into conducting mode at the threshold value.