Patent application number | Description | Published |
20090002222 | Method of estimating target elevation utilizing radar data fusion - A collision avoidance system for reducing false alerts by estimating the elevation of a target, includes short and long range single-dimensional scanning radar sensors having differing ranges and beam angles of inclination, and a digital fusion processor, and preferably includes a locator device, an inclinometer, and a memory storage device cooperatively configured to further perform trend analysis, and target tracking. | 01-01-2009 |
20090002240 | ANTENNA STRUCTURES HAVING ADJUSTABLE RADIATION CHARACTERISTICS - The radiation properties and wave guiding properties of frequency selective surfaces are used in conjunction with closely spaced antenna elements to fabricate antenna structures having adjustable radiation characteristics. The direction, magnitude, and polarization of radiation patterns for such antenna structures can be adjusted by varying the texture or patterning of layers of conducting material forming the frequency selective surfaces. The invention enables the fabrication of low profile antenna structures that can easily be conformed or integrated into complex surfaces without sacrificing antenna performance. | 01-01-2009 |
20090021429 | LOW COST SHORT RANGE RADAR - A low cost radar system that employs monopulse beamforming to detect objects in the road-way both in elevation and azimuth. In one non-limiting embodiment, a beamforming receiver architecture includes a first beamforming device and a plurality of antennas coupled to the first beamforming device, and a second beamforming device and a plurality of antennas coupled to the second beamforming device. The first and second beamforming devices are oriented 90° relative to each other so that the receive beams provided by the first beamforming device detect objects in azimuth and the receive beams provided by the second beamforming device detect objects in elevation. A first switch is provided to selectively couple the sum pattern signal from the first and second beamforming devices to one output line, and a second switch is provided to selectively couple the difference pattern signals from the first and second beamforming devices to another output line. | 01-22-2009 |
20090058731 | Dual Band Stacked Patch Antenna - One or more of the embodiments of a dual band stacked patch antenna described herein employ an integrated arrangement of a global positioning system (GPS) antenna and a satellite digital audio radio service (SDARS) antenna. The dual band antenna receives right hand circularly polarized GPS signals in a first frequency band, left hand circularly polarized SDARS signals in a second frequency band, and vertical linear polarized SDARS signals in the second band. The dual band antenna includes a ground plane element, an upper radiating element (which is primarily utilized to receive SDARS signals), dielectric material between the ground plane element and the upper radiating element, and a lower radiating element (which is primarily utilized to receive GPS signals) surrounded by the dielectric material. The dual band antenna uses only one conductive signal feed to receive both GPS and SDARS signals. | 03-05-2009 |
20090243914 | Methods and Simulation Tools for Predicting GPS Performance in the Broad Operating Environment - To facilitate GPS hardware selection and evaluate performance of vehicle integrated GPS hardware, including various types of GPS antennas and receivers, within different vehicle operating environments, embodiments of the invention are used to provide a simulator which does not require physical GPS hardware to simulate GPS system performance. Preferably, the simulator randomly generates one or more GPS system link budget variables, within predetermined performance bounds, in order to predict GPS system performance in a specific vehicle operating environment for a given antenna radiation pattern and/or GPS receiver. The simulator employs a Monte Carlo technique to evaluate the GPS system performance based on generated pools of link budget variables. | 10-01-2009 |
20100141416 | Tire Pressure Monitoring (TPM) System and Method of Operating the Same - There is provided an exemplary tire pressure monitoring (TPM) system that can use a half-duplex wireless link to communicate between one or more wheel-mounted sensor units and a vehicle-mounted transceiver unit. The half-duplex wireless link enables the sensor units to report sensor readings to the transceiver unit, and it enables the transceiver unit to make configuration changes to the sensor units for improved communication. Some examples of wireless settings that can be modified include modulation settings, data encoding/decoding settings, error correction settings, and transmission power settings. | 06-10-2010 |
20100201584 | METHOD FOR AUTOMOBILE ROOF EDGE MOUNTED ANTENNA PATTERN CONTROL USING A FINITE FREQUENCY SELECTIVE SURFACE - An antenna for a vehicle where the antenna is positioned close to an edge of a roof-top of the vehicle. A frequency selective surface is provided on a glass of the vehicle, generally the vehicle windshield, to extend the antenna ground plane beyond the roof-top to maintain a maximum antenna pattern directivity parallel to the ground. The frequency selective surface may be formed on a substrate that is adhered to the vehicle glass and includes a pattern of conductive portions and dielectric portions that provide proper current generation for the particular antenna frequency band of interest. | 08-12-2010 |
20110121924 | CONNECTOR ASSEMBLY AND METHOD OF ASSEMBLING A CONNECTOR ARRANGEMENT UTILIZING THE CONNECTOR ASSEMBLY - A connector assembly includes, but is not limited to, a body having a top side and a bottom side. A bottom signal plate is connected to the bottom side and is configured for capacitive coupling to a conductor of a coplanar waveguide. A bottom grounding plate is connected to the bottom side and is spaced apart from the bottom signal plate. The bottom grounding plate is configured for capacitive coupling to a grounding plane of the coplanar waveguide. A first electrically conductive pathway is electrically connected to the bottom signal plate and extends to the top side. A second electrically conductive pathway is electrically connected to the bottom grounding plate and extends to the top side. A dielectric adhesive at least partially covers a bottom portion of the connector assembly. | 05-26-2011 |
20130335216 | SCHEMES AND ALGORITHMS TO REDUCE THE ENERGY AND HARDWARE COSTS OF TIRE PRESSURE MONITORING SYSTEMS - A tire pressure monitoring system where the position and orientation of a receiver antenna associated with the tire pressure monitoring system is at a location that is proximate the tire pressure monitoring system. In one embodiment, the receiver antenna is positioned beneath a vehicle chassis. The location of the receiver antenna can be determined by system performance prediction tools that include mean-time-to-warning verses packet error rate curves for a desired packet error rate and packet error rate verses signal-to-noise ratio curves for various operational scenarios and different classes of vehicle that provides a necessary signal-to-noise ratio for a wireless link, and operational scenarios that established desired levels of performance and reliability. | 12-19-2013 |