Denso Corporation

Denso International America, Inc.

Avidasports, LLC.

Netcom, Inc.

Naturion Pte. Ltd.

Lear Corporation

Access Business Group International LLC

R.a. Miller Industries, Inc.

Graham Equipment, LLC

Leviton Manufacturing Company, Inc.

Brunswick Bowling & Billiards Corporation

J. R. Automation Technologies, Inc.

Light Corporation

Fleetwood Group, Inc.

Infinitekey, Inc.

Warren Edwin Guthrie

Raymond Michael Stitt

Eric John Smith

Kurt Dykema

Paul C Duckworth

Ryan D Johnson

Bruce J Burton

John Gregory Videtich

Brent Bouws

Eric Joshua Emens

Kent D Pilcher

David L Klamer

Steven Petersen

J Michael Ellis

Aaron Day

Osman Ahmed

David W Baarman

John Jeremy Churchill Platt

R Michael Stitt

Roger Cox

John Videtich

Jerry Graham

Paul Zoric

Kenneth James Orr

Joshua K Schwannecke

Kyle Golsch

Danilo F Estanislao

Karl Jager

Jody K Harwood

Parimal R Patel

Yuki Tokunaga

Jagadeesh Krishnamurthy

Parimal Patel

Thomas Peterson

Roland C Bouchard

Lawrence F Leete, Iii

Brian T Harvey

Jason T Grant

Shinji Watanabe

Mark Andrew Compton

Eric Emens

Matthew Shinew

Pat Burel

Thomas J Doman

William C Schenck

Richard A Wahl

Paul G Duckworth

Feliks Chikhalenko

Nicholas A Schrock

Travis Wilson

Nicholas Hayhoe

Timothy Cullen Davison

Kevin Ray Spencer

Brandyn Jaymes Blehm

Andrew Scott Homrich

A tire pressure monitoring system is configured to communicate with a tire pressure sensor and has an antenna assembly and a transmitter. The antenna assembly has a transmitting and a cancelling antenna. The transmitting antenna has a wire loop defined by a plurality of coils with a first terminal and a second terminal. The cancelling antenna has a wire loop defined by a plurality of coils with a first terminal and a second terminal. The arrangement of the transmitting antenna and the cancelling antenna defines a proximal zone wherein a field from the transmitting antenna is configured to be sufficient to actuate the tire pressure monitor, while beyond the proximal zone, a field from the cancelling antenna cancels the field from the transmitting antenna. The transmitter is coupled to the transmitting antenna, and the cancelling antenna. An antenna and methods are likewise disclosed.

Tire pressure monitor communication system, electromagnetic transmission system having cancellation and an antenna assembly for use therewith and methods

A system and method for using a portable device to communicate with a vehicle to authorize one or more vehicle operations. The portable device may authorize the vehicle to unlock/lock doors, start the vehicle engine, or mobilize the vehicle, or a combination thereof. The vehicle may include a vehicle transmitter system with one or more transmitters disposed at various locations on the vehicle, and the portable device may be configured to monitor a communication strength between the portable device and the one or more transmitters of the transmitter system. Based on the monitored signal strength, the portable device may determine location information about itself.

System and method for communicating with a vehicle

A method and system of creating microlocation zones by defining virtual boundaries using a system of one or more transmitters and receivers with one or more spatially-correlated antennas.

Method and system for establishing microlocation zones

A contact and ranging system includes a first device that includes a first transceiver, a second transceiver, and a controller to control the first transceiver and the second transceiver of the first device. The first device is operable to determine a distance between the first device and a second device. The first transceiver is configured to perform a discovery operation. Other devices are discovered and added to a list of paired devices. A ranging schedule for each paired device in the list of paired devices is determined. The second transceiver is configured to perform a ranging operation. The ranging and response transmissions are transmitted and received by a pair of devices, such that a range between the pair of devices is determined based upon a time of flight between the pair of devices. The range between the pair of devices is matched with a timestamp and stored in a database.

Decentralized proximity system with multiple radio links

An ion generating device can include a housing having an opening, an anode and a cathode disposed within the housing and having a space between them in fluid communication with the opening, a power source having a negative terminal and a positive terminal with a first connection between the negative terminal and the anode and a second connection between the positive terminal and the cathode, and an air mover disposed to direct an air flow through the space and out of the opening.

Ion generator device

A system and method for determining an Angle of Arrival (AOA) for frequency modulated communications. The system may include first and second antennas spaced apart from each other by a distance, and configured to receive wireless communications in the form of a modulated signal. The system may determine a phase difference between the received signals based on one or more samples of a dedicated portion of the received signals, where one or more aspects of the dedicated portion is variable.

System and method for determining angle of arrival for communications

An antenna assembly includes a circularly polarized antenna housing configured to mount to a mounting surface. The antenna assembly also includes a vertical antenna housing having a first end proximate to the circularly polarized antenna housing, as well as a distal end extending normally from the circularly polarized antenna housing.

Wideband, low profile, small area, circular polarized UHF antenna

A system is disclosed and includes a plurality of antennas. Each antenna includes a plurality of conductive elements and is circularly polarized. The plurality of conductive elements is configured to receive radio frequency (RF) signals. A first end of each of the plurality of conductive elements is electrically coupled to a printed circuit board, which includes a plurality of coupler circuits and a switching circuit. The plurality of coupler circuits is configured to combine the RF signals and output a signal to the switching circuit based on the combined RF signals. The switching circuit is configured to selectively output one of the signals based on at least one control port of the switching circuit being selectively activated by a control signal. The system also includes a microcontroller configured to determine, based on at least one of the signals, an angle of arrival associated with the plurality of antennas.

Circular polarized quadrifilar helix antennas electronics

Apparatus and systems are disclosed and include a body having a plurality of slots. Each of the plurality of slots includes a first portion, a second portion, and a third portion. The first portion is located on a first surface of the body. The second portion is located on a second surface of the body and forms a helical shape. The third portion is located on a third surface of the body. The first surface and the second surface are non-parallel. The third surface and the second surface are non-parallel. The apparatus includes a plurality of antenna elements that are disposed in a respective one of the plurality of slots. The plurality of antenna elements is configured to receive radio frequency (RF) signals. The apparatus includes a ground plane that is coupled to a first end of each of the plurality of antenna elements.

Circular polarized quadrifilar helix antennas

A system and method for determining an Angle of Arrival (AOA) for frequency modulated communications. The system may include first and second antennas spaced apart from each other by a distance, and configured to receive wireless communications in the form of a frequency modulated signal. The system may determine a phase difference between the received signals irrespective of the modulations in the signal, thereby facilitating determining an AOA.

A feed circuit for feeding an antenna includes: a first coupler including a first pair of opposing conductive elements; a second coupler including a second pair of opposing conductive elements; a third coupler including a third pair of opposing conductive elements; a delay line; first terminals configured to connect to the antenna; second terminals connected to a ground reference; and a feed terminal connected to the first coupler and configured to receive at least one of a transmit signal to be transmitted from the antenna or a combined received signal from the antenna. The first terminals are connected to the second coupler and the third coupler and configured to output a signal at different phases to conductive elements of the antenna. The second terminals are connected to the first coupler, the second coupler and the third coupler.

Feed circuit for antenna of angle of arrival measurement system

Methods and systems are disclosed and include receiving a signal via a first communication channel at a plurality of azimuth angles. The method includes determining a plurality of first communication channel phase angle differences between a pair of antennas. The method includes receiving a second signal via a second communication channel and at the plurality of azimuth angles. The method includes determining a plurality of second communication channel phase angle differences between the pair of antennas that each correspond to one of the plurality of azimuth angles. The method includes generating a first reference curve based on the plurality of first communication channel phase angle differences. The method includes generating a second reference curve based on the plurality of second communication channel phase angle differences. The method also includes generating a calibration curve that is based on an interpolation of the first reference curve and the second reference curve.

Circular polarized angle of arrival measuring system

Growing community of inventors

West Olive, MI, United States of America

Warren Edwin Guthrie