Kenneth W Gay

US Patent:

7139651, Nov 21, 2006

Filed:

Mar 5, 2004

Appl. No.:

10/795198

Inventors:

Timothy J. Knowlton - Benson AZ, US
Kenneth W. Gay - Tucson AZ, US

Assignee:

Modular Mining Systems, Inc. - Tucson AZ

International Classification:

G06F 19/00

US Classification:

701 50, 701 4, 701 23, 701 45, 701214

Abstract:

A three-dimensional and a two-dimensional GPS unit periodically provide coordinate positions of points on the work machine and are combined with a Kalman filter to produce a point of reference on a work machine. The point of reference is improved by combining the position with an inertial position derived from accelerometer data in another Kalman filter. Additionally, the two-dimensional GPS unit provides a heading that is combined with an inertial orientation derived by the angular rate from a gyroscope in another Kalman filter to produce a precise orientation estimate. Inclinometers provide pitch and roll of the work machine. With the point of reference, orientation estimate, pitch, roll and known geometry of the work machine, the GPS unit calculates the location and orientation of machine components and continuously tracks its movement throughout the mine. Additionally, the accelerometers and gyroscope provide position and orientation when the GPS units are inoperable.

US Patent:

7193543, Mar 20, 2007

Filed:

Sep 2, 2005

Appl. No.:

11/219399

Inventors:

Scott C. McLeod - Oro Valley AZ, US
Kenneth W. Gay - Tucson AZ, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

H03M 1/00

US Classification:

341123, 374170

Abstract:

In one set of embodiments, a temperature measurement system may include an analog to digital converter (ADC) to produce digital temperature readings according to a difference base-emitter voltage (ΔV) developed across a PN-junction. A clock generating circuit may be configured to provide a sampling clock used by the ADC, which in some embodiments may be a delta-sigma ADC, in performing the conversions. The clock generating circuit may be configured to change the frequency of the sampling clock a specified number of times within each one of the one or more conversion cycles to reduce an error component in the temperature measurement, where the error component is produced by an interfering signal, such as an electromagnetic interference (EMI) signal being coherent with the sampling clock, and/or a noise residing on the voltage supply and also being coherent with the sampling clock.

US Patent:

8149000, Apr 3, 2012

Filed:

Oct 11, 2007

Appl. No.:

11/870529

Inventors:

Ian F. Harris - Kings Park NY, US
Drew J. Dutton - Austin TX, US
Kenneth W. Gay - Tucson AZ, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G01R 27/26

US Classification:

324661

Abstract:

System and method for determining closure of an electronic device. The electronic device may include a top portion and a bottom portion, and may be connecting via a hinge or other closing mechanism. The top portion and/or the bottom portion may include one or more capacitive sensors which provide signals corresponding to physical contact and a controller coupled to the one or more capacitive sensors. The controller may operate to receive the signals from the one or more capacitive sensors, determine if the electronic device has been closed based on the received signals, and initiate a sequence of events corresponding to the closure of the electronic device. The sequence of events may result in the device entering a low power state.

US Patent:

8368334, Feb 5, 2013

Filed:

Nov 18, 2009

Appl. No.:

12/620726

Inventors:

Lynn R. Kern - Tucson AZ, US
Scott C. McLeod - Oro Valley AZ, US
Kenneth W. Gay - Tucson AZ, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

H02P 6/00

US Classification:

31840035, 31840032, 31840034, 318700

Abstract:

A control method for a brushless, three-phase DC motor. A voltage induced by rotation of a rotor may be sampled at a first expected zero crossing value to produce a first sampled voltage value. An average of a plurality of sampled voltage values, including voltage values sampled at a plurality of prior expected zero crossing values and the first sampled voltage value, may be calculated. The first sampled voltage value may be subtracted from the calculated average to produce a delta zero crossing error. A pulse-width modulation duty cycle may be adjusted based on the delta zero crossing error. The pulse-width modulation duty cycle may be used to control a rotational velocity of the rotor.

US Patent:

20120294332, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109446

Inventors:

Morgan H. Monks - Tempe AZ, US
Kenneth W. Gay - Tucson AZ, US
Timothy J. Knowlton - Benson AZ, US

International Classification:

G01K 13/00

US Classification:

374152, 374E13001

Abstract:

Adjusting current based on temperature. A change in temperature of a connection between a first device and a second device may be measured. The change in temperature may be performed while the first device provides current to the second device over the connection. If the change in temperature is above a threshold, the current being provided from the first device to the second device may be reduced. The change in temperature may be performed by the first device and/or the second device, e.g., by measuring the temperature of a connector of the connection.

US Patent:

20130162517, Jun 27, 2013

Filed:

Dec 22, 2011

Appl. No.:

13/334477

Inventors:

Kenneth W. Gay - Tucson AZ, US

International Classification:

G09G 5/00

US Classification:

345156

Abstract:

Proximity based system and method for detecting user gestures. Each of a plurality of proximity sensing circuits may collect digital data. Each proximity sensing circuit may include an antenna configured to transmit and receive electromagnetic signals and a shield driver configured to shield signals transmitted by the antenna in one or more directions. The digital data may be collected based on electromagnetic signals received from another proximity sensing circuit via the antenna. The received electromagnetic signals may be modified by one or more user proximity gestures. The digital data from each of the plurality of proximity sensing circuits may be received by a coordinating circuit. The coordinating circuit may produce coordinated digital data from the digital data received from each of the plurality of proximity sensing circuits. The coordinated digital data may be configured for use in determining that a user performed the one or more user proximity gestures.