Paul Charles Mathews

US Patent:

6377167, Apr 23, 2002

Filed:

May 1, 2001

Appl. No.:

09/674215

Inventors:

Scott Juds - Seattle WA
Paul Mathews - Langley WA
Robert I Lewis - Sunnyvale CA

Assignee:

Auto-Sense LLC - Denver CO

International Classification:

B60Q 100

US Classification:

340435, 340436, 340903, 340904, 340933, 340942, 340943, 340552, 340556, 342 70

Abstract:

Collision avoidance apparatus ( ) is mounted on a host vehicle ( ) to detect the presence of an adjacent vehicle ( ) within a monitored zone ( ). A sensor module ( ) includes a plurality of discrete sensor systems for monitoring unique portions of the monitored zone ( ), each of which comprises an emitter ( ) emitting a fixed frequency modulated beam ( ) of light energy ( ) with a predetermined burst length into its unique portion of the monitored zone ( ), and a receiver ( ) having a field of view ( ), substantially aligned with emitted beam ( ) to produce a fixed optical overlap area (A), and for sensing light energy ( ) and generating a received signal. A frequency generator ( ) produces two or more predetermined different fixed frequencies for use by the emitter ( ) to emit beams ( ) at each frequency. A phase shifter ( ) produces a phase shifted reference signal with a different predetermined phase delay relationship to each fixed frequency. A mixer ( ) mixes each received signal and each phase shifted reference signal to produce demodulation signals from for each frequency.

US Patent:

6813361, Nov 2, 2004

Filed:

Dec 11, 2001

Appl. No.:

10/015249

Inventors:

Philip R. Jeffs - Snohomish WA
Paul Mathews - Langley WA

Assignee:

Rane Corproration - Mukilteo WA

International Classification:

H04B 100

US Classification:

381119, 369 4

Abstract:

A non-contact fader control uses a movable permanent magnet and one or two Hall-effect sensors to provide a constant, direct current voltage output. Signal conditioning and digital control circuitry linearize the output and otherwise precondition the output for application to a voltage controlled amplifier for the control of audio output in an audio mixing board.

US Patent:

53549830, Oct 11, 1994

Filed:

Apr 10, 1990

Appl. No.:

7/508132

Inventors:

Scott Juds - Everett WA
Paul Mathews - Langley WA

Assignee:

Auto-Sense, Limited - Aurora CO

International Classification:

G01V 904

US Classification:

2502221

Abstract:

A method and apparatus are disclosed which allow for the detection of an object (14) by the generation of a radiated beam (18) and a subsequent reflection by the object (14) of a portion (20) thereof. The detection of particulate object material (16) due to a reflection of a portion (22) of the generated beam (18) is minimized.

US Patent:

53110129, May 10, 1994

Filed:

Mar 15, 1993

Appl. No.:

8/032736

Inventors:

Scott Juds - Everett WA
Paul Mathews - Langley WA

Assignee:

Auto-Sense, Limited - Denver CO

International Classification:

G01V 904

US Classification:

2502221

Abstract:

A method and apparatus are disclosed which allow for the detection of an object (14) by the generation of a radiated beam (18) and a subsequent reflection by the object (14) of a portion (20) thereof. The detection of particulate object material (16) due to a reflection of a portion (22) of the generated beam (18) is minimized.

US Patent:

43425143, Aug 3, 1982

Filed:

Aug 11, 1980

Appl. No.:

6/177032

Inventors:

Paul B. Mathews - Seattle WA

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01C 308

US Classification:

356 5

Abstract:

Apparatus and method for using one laser range finder to calibrate another imilar range finder. The range finder under test receives a simulated return pulse from the transmitter of the second range finder. An external trigger initiates the transmitter of the range finder under test and a short time later initiates the transmitter of the second range finder. The transmitted beam of the second range finder is directed into the receiver of the range finder under test and it halts the range readout thereof. This range readout is compared to the reading on an external timer arranged to measure the time interval between the emission of the transmitted beams of the two range finders.

US Patent:

56753268, Oct 7, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/485099

Inventors:

Scott Juds - Seattle WA
Paul Mathews - Langley WA

Assignee:

Auto-Sense, Ltd. - Boulder CO

International Classification:

G08G 116

US Classification:

340904

Abstract:

A method of defining a sensing system for detecting the presence of an object in a volume of space under surveillance by determining the optimal placement of a plurality of energy beams which are projected into the volume which comprises the steps of (A) placing the object at a preselected position within the space; (B) directing a plurality of sample beams of energy, which have a predetermined orientation, from a source onto the object; (C) detecting the reflections of the sample beam energy from points on the object by energy detectors; (D) recording the preselected position of the object, the predetermined orientation of sample beams, and the detection status of the energy detectors; (E) changing the equatorial and azimuthal angles of each of the beams and repeating steps (B), (C) and (D); (F) moving the source of the sample beams relative to the object; (G) repeating steps (B) through (F) to produce spatial maps of the locations at which the object is positioned when each of the energy detectors detect reflected sample beam energy; and (H) using the spatial maps so produced to select the optimal orientation of a set of energy beams which will maximize the detection probability of an object located in the volume of space under surveillance. This method is repeated for a plurality of different vehicles.

US Patent:

54183596, May 23, 1995

Filed:

Nov 30, 1993

Appl. No.:

8/159992

Inventors:

Scott Juds - Everett WA
Paul Mathews - Langley WA

Assignee:

Auto-Sense, Limited - Denver CO

International Classification:

G01V 904

US Classification:

250221

Abstract:

A method and apparatus are disclosed which allow for the detection of an object (14) by the generation of a radiated beam (18) and a subsequent reflection by the object (14) of a portion (20) thereof. The detection of particulate object material (16) due to a reflection of a portion (22) of the generated beam (18) is minimized.

US Patent:

20190083202, Mar 21, 2019

Filed:

Sep 19, 2018

Appl. No.:

16/135842

Inventors:

- Vancouver, CA
Kevin STRANGE - Victoria, CA
Paul MATHEWS - Langley WA, US
Robert MARSANYI - Clinton WA, US
Alexey DEMYKIN - Surrey, CA
Paul CHRISTENSEN - Vancouver, CA

Assignee:

Biolux Research Ltd. - Vancouver

International Classification:

A61C 7/08
A61N 5/06
A61B 5/00
A61C 8/02

Abstract:

An apparatus includes a mouthpiece sized and shaped to be disposed within a patient's mouth. The mouthpiece includes a bite tray and a flange coupled to the bite tray, the flange being deflectable with respect to the bite tray. A posterior portion of the flange extends beyond a posterior end of the bite tray. The apparatus also includes a light emitter at least partially disposed within the flange. The light emitter is configured to emit light to oral tissue, such as alveolar mucosa, of the patient when the mouthpiece is disposed within the mouth.