Michael W Weir

US Patent:

57612382, Jun 2, 1998

Filed:

Jul 5, 1996

Appl. No.:

8/676013

Inventors:

John Anderson Fergus Ross - Schenectady NY
Irfan Ali - Schenectady NY
John Erik Hershey - Ballston Lake NY
Stephen Michael Hladik - Albany NY
Gary Jude Saulnier - Rexford NY
Michael Paul Weir - Ballston Lake NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H04B 169

US Classification:

375200

Abstract:

A low complexity and low cost transmitted reference spread spectrum communications system provides several methods of generating a suitable wideband carrier, a method for combining the wideband carrier with a narrowband modulated wideband carrier, and a number of implementations of a simple, inexpensive receiver for the transmitted reference communications system. The transmitter includes a balanced modulator for modulating a wideband spreading signal with a narrowband message signal to generate a wideband carrier. A signal combiner combines the wideband carrier with a narrowband modulated wideband carrier to generate a transmitted reference spread spectrum signal. The receiver includes a selectable time delay device having a plurality of taps for receiving a detected received signal from the transmitter. A tap selector selects a delayed signal from the selectable time delay device. A mixer combines output signals of the selectable time delay device and the tap selector, and a leaky integrator receives the mixer output signal and controls the tap selector.

US Patent:

55527124, Sep 3, 1996

Filed:

Feb 15, 1995

Appl. No.:

8/388914

Inventors:

Michael P. Weir - Ballston Lake NY
Hunt A. Sutherland - Saratoga Springs NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01R 3102

US Classification:

324537

Abstract:

A system for testing the integrity of critical circuitry, lines and wires employs a differential amplifier having an input resistance R. sub. in and a feedback loop with a resistance R. sub. fb. The critical wires being tested must be a signal wire series connected to a resistance R. sub. S, which is in turn series connected to a return wire. A test voltage source is connected to the noninverting input of the differential amplifier. The signal wire is connected to the inverting input of the differential amplifier. The test voltage source is activated by a test control unit. When activated, the test voltage source provides two distinct outputs allowing computation of a test gain in the presence of other functional signals. The test control unit measures the output V. sub. out of the differential amplifier and computes the value of the test gain.

US Patent:

56445105, Jul 1, 1997

Filed:

Nov 25, 1994

Appl. No.:

8/344912

Inventors:

Michael Paul Weir - Ballston Lake NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H02H 700

US Classification:

364557

Abstract:

Apparatus for electrically coupling a motor to a power source and providing overload protection to the motor includes a controller having a programmable module for periodically computing data indicative of motor temperature based upon motor current. The controller supplies an output signal based at least upon the computed motor temperature data. A contactor, responsive to the controller output signal, deenergizes the motor whenever any last-computed motor temperature data reaches or exceeds a threshold temperature. The last-computed motor temperature data is stored in a memory prior to the motor being deenergized. A signal from a timer circuit indicative of elapsed time after the motor is deenergized, together with the stored motor temperature data, enable the programmable module to compute fresh date indicative of motor temperature subsequent to the motor being deenergized. The programmable module, upon initialization with the fresh motor temperature data, can readily resume periodic computation of motor temperature data based upon current now drawn by the motor.

US Patent:

58179437, Oct 6, 1998

Filed:

Mar 24, 1997

Appl. No.:

8/823261

Inventors:

Kenneth Brakeley Welles - Scotia NY
Michael Paul Weir - Ballston Lake NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01L 912

US Classification:

73718

Abstract:

A pressure sensor having structure for generating a magnetic force to balance forces on opposing sides of a flexible diaphragm centered within a pressure chamber allows fluid pressure to be introduced into the chamber on one side of the diaphragm. A first magnetic coil is positioned on another side of the diaphragm and a second coil is mounted to the diaphragm. When fluid pressure is introduced into the pressure chamber, the diaphragm deflects, and the magnitude of current required to generate a recentering magnetic force which causes the diaphragm to be recentered constitutes a measure of the fluid pressure. Since the recentering magnetic force is substantially unaffected by temperature, the fluid pressure measurement obtained is substantially independent of temperature.

US Patent:

D3807371, Jul 8, 1997

Filed:

Sep 25, 1995

Appl. No.:

D/044485

Inventors:

Michael Paul Weir - Ballston Lake NY
Matthew Douglas Marple - Waterbury CT
Jung Yoon Park - Bristol CT
Nataniel Barbosa Vicente - Bridgeport CT
Laurie Satsue Hiyakumoto - Durham NC

International Classification:

1303

US Classification:

D13162

US Patent:

55326013, Jul 2, 1996

Filed:

Feb 15, 1995

Appl. No.:

8/388917

Inventors:

Michael P. Weir - Ballston Lake NY
Hunt A. Sutherland - Saratoga Springs NY

Assignee:

General Electirc Company - Schenectady NY

International Classification:

G01R 3102

US Classification:

324539

Abstract:

A system for testing the integrity of critical circuitry, lines and wires employs a differential amplifier having an input resistance R. sub. in and a feedback loop with a resistance R. sub. fb. The critical wires being tested must be a signal wire series connected to a resistance R. sub. s, which is in turn series connected to a return wire. A test voltage source is connected to the noninverting input of the differential amplifier. The signal wire is connected to the inverting input of the differential amplifier. The test voltage source is activated by a test control unit. When activated, the test voltage source provides two distinct outputs allowing computation of a test gain in the presence of other functional signals. The test control unit measures the output V. sub. out of the differential amplifier and computes the value of the test gain.

US Patent:

57517797, May 12, 1998

Filed:

Jun 27, 1995

Appl. No.:

8/495188

Inventors:

Michael Paul Weir - Ballston Lake NY

Assignee:

Lockheed Martin Corporation - Syracuse NY

International Classification:

H03K 2374
G11C 1928

US Classification:

377 60

Abstract:

A general absolute value circuit for developing a true, symmetric or bipolar, absolute value output signal from an input charge signal, compact enough to be used on a sensor chip incorporated into (or used in combination with) a pixel processor of the type used in imaging and other systems that collect electromagnetic radiation as part of on-chip circuitry, includes a balanced differential amplifier combined with a merged dual shelf transistor structure. The balanced differential amplifier, in response to an input charge signal, drives the merged dual shelf transistor structure which in turn generates the desired true absolute value output signal. Such circuitry may be used in imaging systems to implement focal-plane processing algorithms or may be used for performing a single read true absolute value computation by a pixel processor located on a sensor chip. The merged dual shelf transistor structure enhances performance and speed of the processor in which it is incorporated.

US Patent:

54537835, Sep 26, 1995

Filed:

Sep 2, 1992

Appl. No.:

7/940261

Inventors:

Michael P. Weir - Ballston Lake NY

Assignee:

Martin Marietta Corporation - Syracuse NY

International Classification:

H04N 5335
H04N 314

US Classification:

348294

Abstract:

A general absolute value circuit for developing a true, symmetric or bipolar, absolute value output signal from an input charge signal, compact enough to be used on a sensor chip incorporated into (or used in combination with) a pixel processor of the type used in imaging and other systems that collect electromagnetic radiation as part of on-chip circuitry, includes a balanced differential amplifier combined with a merged dual shelf transistor structure. The balanced differential amplifier, in response to an input charge signal, drives the merged dual shelf transistor structure which in turn generates the desired true absolute value output signal. Such circuitry may be used in imaging systems to implement focal-plane processing algorithms or may be used for performing a single read true absolute value computation by a pixel processor located on a sensor chip. The merged dual shelf transistor structure enhances performance and speed of the processor in which it is incorporated.