Charles M Marshall

US Patent:

6396041, May 28, 2002

Filed:

Nov 3, 1999

Appl. No.:

09/433122

Inventors:

Curtis A. Vock - Boulder CO 80304
Kevin J. Grealish - Westwood MA 02090-2948
Robert D. Frey - Bolton MA 01740
George Nauck - Plant City FL 33566
Charles M. Marshall - North Andover MA 01845

International Classification:

A63B 6936

US Classification:

2502062, 2502081, 473152, 473218, 473270

Abstract:

The invention provides a golf feedback system. A mat is used to determine player foot position, and a 3D golf tracking system tracks golf balls hit from the mat to determine (a) a ground ball track and (b) a player orientation axis, based on the foot position and relative to the mat. The system further determines information indicative of how well the ground ball track correlated to the orientation axis. Preferably, a golfer using the system is led through a plurality of pin target locations in a simulated golf game. The system evaluates and stores information such as slice and hook, accuracy, player orientation axis and ball carry distance such that the player can evaluate his/her game individually or against one or more other players. The invention can include a plurality of mats, each mat located at a different tee off position at one or more driving ranges, each mat providing player foot position at that mat, a 3D golf tracking system at each of the driving ranges for tracking golf balls hit from one ore more mats at the associated driving, and a web server for storing and collating player performance information (e. g. , player orientation axis, slice, hook, distance information) for all golfers.

US Patent:

6515285, Feb 4, 2003

Filed:

Feb 11, 2000

Appl. No.:

09/502840

Inventors:

Charles M. Marshall - Andover MA
Neal R. Butler - Acton MA

Assignee:

Lockheed-Martin IR Imaging Systems, Inc. - Lexington MA

International Classification:

G01J 502

US Classification:

250352, 25033903, 25033904, 25037015

Abstract:

Methods and apparatus for compensating a radiation sensor for ambient temperature variations. Ambient temperature variations may produce undesirable artifacts in electronic signals output by a radiation sensor. In some cases, such artifacts may detrimentally reduce the dynamic range of the sensor and/or processing circuitry associated with the sensor with respect to radiation of interest. The radiation sensor may be compensated for such undesirable artifacts by, for example, adding an appropriate offset to a sensor bias voltage or a sensor bias current, and/or controlling a temperature of the radiation sensor, based on variations in the ambient temperature.

US Patent:

6774349, Aug 10, 2004

Filed:

Feb 19, 2002

Appl. No.:

10/078782

Inventors:

Curtis A. Vock - Boulder CO 80304
Kevin J. Grealish - Westwood MA 02090-2948
Robert D. Frey - Bolton MA 01740
George Nauck - Plant City FL 33566
Charles M. Marshall - North Andover MA 01845

International Classification:

G01C 2102

US Classification:

2502061, 2733172, 463 2, 473169

Abstract:

The invention provides a golf feedback system. A mat is used to determine player foot position, and a 3D golf tracking system tracks golf balls hit from the mat to determine (a) a ground ball track and (b) a player orientation axis, based on the foot position and relative to the mat. The system further determines information indicative of how well the ground ball track correlated to the orientation axis. Preferably, a golfer using the system is led through a plurality of pin target locations in a simulated golf game. The system evaluates and stores information such as slice and hook, accuracy, player orientation axis and ball carry distance such that the player can evaluate his/her game individually or against one or more other players. The invention can include a plurality of mats, each mat located at a different tee off position at one or more driving ranges, each mat providing player foot position at that mat, a 3D golf tracking system at each of the driving ranges for tracking golf balls hit from one ore more mats at the associated driving, and a web server for storing and collating player performance information (e. g. , player orientation axis, slice, hook, distance information) for all golfers.

US Patent:

6791610, Sep 14, 2004

Filed:

Sep 14, 1998

Appl. No.:

09/051180

Inventors:

Neal R. Butler - Acton MA
Charles M. Marshall - North Andover MA

Assignee:

Lockheed Martin IR Imaging Systems, Inc. - Lexington MA

International Classification:

H04N 314

US Classification:

348297, 348294

Abstract:

A focal plane array sensor includes optics located along an optical path, for transmitting radiation. A focal plane array and integrated circuit, located along the optical path for receiving the transmitted radiation, responsively produces image signals from the transmitted radiation. The integrated circuit includes apparatus for converting the image signals into digital image data at digital image data outputs.

US Patent:

6819762, Nov 16, 2004

Filed:

Sep 10, 2001

Appl. No.:

09/950285

Inventors:

Andrew R. Jones - Roslindale MA
Andrew G. Ziegler - Arlington MA
Charles M. Marshall - North Andover MA
Timothy E. White - Acton MA

Assignee:

Aura Communications, Inc. - Wilmington MA

International Classification:

H04M 100

US Classification:

379430, 381380

Abstract:

An ear mounted speaker assembly provides improved internal and external stability of a âin-the-earâ headset. A housing containing a speaker further contains an extender, audio portion and electrical compartment. The extender is adapted to rest in the intertragic notch of the ear. The audio portion is mounted to the extender and is of greater width than the extender. The audio portion is adapted to be positioned within the lower concha behind the tragus and antitragus of the ear. The compressible retainer extends from the surface of the housing and presses against the upper concha of the ear. The strut extends from the lower surface of the housing below the extender and extends downward outside the intertragic notch and presses against skin to stabilize the speaker assembly within the ear. Compressible retainers may be interchangeable and may come in a kit containing a plurality of interchangeable compressible retainers of a variety of shapes.

US Patent:

6885971, Apr 26, 2005

Filed:

Nov 6, 2001

Appl. No.:

09/992966

Inventors:

Curtis A. Vock - Niwot CO, US
Dennis Darcy - Dracut MA, US
Andrew Bodkin - Wellesley MA, US
Charles Marshall - North Andover MA, US
Peter Flentov - Carlisle MA, US

Assignee:

PhatRat Technology, Inc. - Boulder CO

International Classification:

G06F017/00

US Classification:

702182, 702187

Abstract:

The invention detects the loft time, speed, power and/or drop distance of a vehicle, such as a sporting vehicle, during activities of moving and jumping. A loft sensor detects when the vehicle leaves the ground and when the vehicle returns to the ground. A controller subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. In addition, a speed sensor can detect the vehicle's speed for selective display to the user. A power sensing section informs the user of expended energy, which can be compared to other users. A drop distance sensing unit informs the user of the peak height of a jump, during an airtime. Gaming on the internet is facilitated to connect worldwide sport enthusiasts.

US Patent:

7072789, Jul 4, 2006

Filed:

May 11, 2004

Appl. No.:

10/842947

Inventors:

Curtis A. Vock - Boulder CO, US
Peter Flentov - Carlisle MA, US
Dennis Darcy - Dracut MA, US
Andrew Bodkin - Wellesley MA, US
Charles Marshall - North Andover MA, US

Assignee:

PhatRat Technology, Inc. - Niwot CO

International Classification:

G01B 21/00
G06F 17/00

US Classification:

702141, 482 8

Abstract:

Sensors detects loft time, speed, power and/or drop distance of a vehicle and/or person. The sensors couple with multiple persons during athletic activity. Data from the sensors downloads to a database so that users may compare athletic performances (e. g. , speed) between the persons, such as through the Internet.

US Patent:

7215924, May 8, 2007

Filed:

Aug 26, 2005

Appl. No.:

11/213624

Inventors:

Vincent Palermo - Westford MA, US
Charles M. Marshall - North Andover MA, US
Timothy E. White - Acton MA, US
Stephen A. Voegelin - Reading MA, US
Jeffrey R. LaFranchise - Newburyport MA, US

Assignee:

Aura Communications Technology, Inc. - North Andover MA

International Classification:

H04B 7/00
H04B 1/38
H04B 1/40
H04M 1/00

US Classification:

455 411, 4555501, 455561, 455 88, 455 412

Abstract:

Contents of one or more received messages can be analyzed to determine whether a transceiver device generating the inductive field has already been programmed with a unique communication code. If not, bidirectional communications can be established to program the transceiver device with a unique communication code over an inductive link. Orientation or position of a transceiver device can be used to initiate a process for programming a communication code. Generally, the communication code can define a unique relationship between two or more transceiver devices.