Michael D Holt

Address:

4602 Ramblewood Dr, Greensboro, NC 27406

VIN:

5DUUM08152J004752

Make:

BMW

Model:

X5-Series AWD 4dr 4.8i

Year:

2007

US Patent:

6697300, Feb 24, 2004

Filed:

Sep 13, 2002

Appl. No.:

10/242823

Inventors:

Michael D. Holt - Elon NC

Assignee:

General Dynamics Advanced Information Systems, Inc. - Arlington VA

International Classification:

G01S 386

US Classification:

367127, 367130

Abstract:

Method and apparatus for determining the positioning of volumetric detection array lines. In the case of a sonar array, ultrasonic frequencies are used. Transmitter subsystems including ceramic transducers, and sensors such as hydrophones, are deployed on the lines of the array and code division multiple access (CDMA) type pseudo-random numbers are used to identify each transmitter. Transit times between transducers and sensors, as determined by detector electronics, are sent to a ship-board receiver in any of various formats, so that array line position can be determined.

US Patent:

7592899, Sep 22, 2009

Filed:

Nov 23, 2005

Appl. No.:

11/287144

Inventors:

Michael D. Holt - Greensboro NC, US
Kenneth B. Tysinger - Greensboro NC, US
J. Lamar Chancey - McLeansville NC, US

Assignee:

General Dynamics Advanced Information Systems, Inc. - Fairfax VA

International Classification:

G05B 11/01

US Classification:

34031011, 34031015, 379419, 370437, 367136

Abstract:

A telemetry system is described in which a plurality of channels are coupled to a bus. A control subsystem controls the channels so that one of the channels presents to the bus during its designated time period a channel characteristic. The control subsystem interrogates in the analog domain each of the channels during its designated time period, and forms a signal representative of the channel characteristic. The control subsystem may combine one or more of the signals into a digital packet, and transmit the same via transceiver over a wireless network. The channels may be contained within a submersible enclosure and displaced at intervals along the bus, thereby forming an array for monitoring waterborne threats. The array may lie along an ocean floor, may be towed by a marine vehicle, or may suspended from a deployable buoy containing the control subsystem, transceiver, and a remote power source. The array may further comprise a defensive countermeasure deployable responsive to detecting a threat.

US Patent:

7970003, Jun 28, 2011

Filed:

Jun 1, 2004

Appl. No.:

10/859910

Inventors:

Michael D. Holt - Greensboro NC, US

Assignee:

General Dynamics Advanced Information Systems Inc. - Fairfax VA

International Classification:

H04B 7/212

US Classification:

370442, 607 60

Abstract:

A telemetry system is described in which a plurality of channels are coupled to a bus. A control subsystem controls the channels so that one of the channels presents to the bus during its designated time period a channel characteristic. The control subsystem interrogates in the analog domain each of the channels during its designated time period, and forms a signal representative of the channel characteristic. The control subsystem may combine one or more of the signals into a digital packet, and transmit the same over a network.

US Patent:

8330614, Dec 11, 2012

Filed:

Sep 15, 2009

Appl. No.:

12/585462

Inventors:

Michael D. Holt - Elon NC, US
Kenneth B. Tysinger - Burlington NC, US
J. Lamar Chancey - Burlington NC, US

Assignee:

General Dynamics Advanced Information Systems - Fairfax VA

International Classification:

G05B 11/01

US Classification:

340850, 340 1237, 340 1232, 379419, 379437, 367136

Abstract:

A telemetry system is described in which a plurality of channels are coupled to a bus. A control subsystem controls the channels so that one of the channels presents to the bus during its designated time period a channel characteristic. The control subsystem interrogates in the analog domain each of the channels during its designated time period, and forms a signal representative of the channel characteristic. The control subsystem may combine one or more of the signals into a digital packet, and transmit the same via transceiver over a wireless network. The channels may be contained within a submersible enclosure and displaced at intervals along the bus, thereby forming an array for monitoring waterborne threats. The array may lie along an ocean floor, may be towed by a marine vehicle, or may suspended from a deployable buoy containing the control subsystem, transceiver, and a remote power source. The array may further comprise a defensive countermeasure deployable responsive to detecting a threat.

US Patent:

8537849, Sep 17, 2013

Filed:

May 17, 2011

Appl. No.:

13/109641

Inventors:

Michael D. Holt - Greensboro NC, US

Assignee:

General Dynamics Advanced Information Systems, Inc. - Fairfax VA

International Classification:

H04L 29/06

US Classification:

370419, 370442

Abstract:

A channel in a telemetry system is described. The channel includes a sample-and-hold circuit, a variable resistor circuit, and a control element. The sample-and-hold circuit is configured to hold a sample of a signal. The variable resistor circuit is communicatively coupled to the sample-and-hold circuit, and is configured to present a variable impedance to one or more signal lines during a time period designated for the channel. The variable impedance is representative of the sample held by the sample-and-hold circuit. The control element is configured to control the variable resistor circuit to present to the one or more signal lines an open circuit equivalent impedance during times other than the time period designated for the channel.

US Patent:

20130301978, Nov 14, 2013

Filed:

May 8, 2012

Appl. No.:

13/466335

Inventors:

Timothy S. Meyer - Greensboro NC, US
Michael D. Holt - Elon NC, US
Richard T. Kane - Summerfield NC, US
Kenneth B. Tysinger - Burlington NC, US

Assignee:

GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS - Fairfax VA

International Classification:

G01N 21/47
G02B 6/00

US Classification:

385 12

Abstract:

An optical sensing system includes a transmitter assembly for generating a generated signal having a frequency in an optical wavelength. An optical sensing fiber is coupled to the transmitter assembly for receiving the generated signal and producing a reflected signal from backscattering of the generated signal. The system also includes a receiver assembly coupled to the optical sensing fiber for receiving the reflected signal. The system further includes a controller in communication with the receiver assembly for determining environmental effects imposed on the optical sensing fiber based on characteristics of the reflected signal.

US Patent:

58779990, Mar 2, 1999

Filed:

Jul 27, 1998

Appl. No.:

/123187

Inventors:

Michael D. Holt - Elon College NC
Richard Thomas Kane - Morristown NJ
Timothy Scott Meyer - Greensboro NC

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 1100

US Classification:

367151

Abstract:

A method and apparatus for discriminating digital data received from a plurality of spatially distinct acoustic sensing nodes of a distributed undersea optical surveillance system. The present invention advantageously employs Code Division Multiplexing (CDM), which is a synchronous variation of Code Division Multiple Access (CDMA), to communicate a plurality of digital data bit-streams from the nodes to a common location remote therefrom. The inventive system generates at the remote location a pseudo-random reference signal that functions as a carrier for communicating sensed acoustic data from the nodes to the remote location. Using the known spatial relationship between the nodes and the remote location and the pseudo-random reference signal, the present invention operatively synchronizes correlators at the remote location to receive and differentiate data from the various individual nodes.