Roland Edward
Roland Edward Chemali, Kingwood, TX US
Patent application number | Description | Published |
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20080258934 | Method and Apparatus for Automated Parking Assistance - A method of automated parking assistance. A logic unit reads identification information from a transponder attached to a vehicle and determines the current position of the vehicle by measuring distances between the transponder and multiple stationary sensor devices. A pre-defined parking location is stored by pressing a single button. If the current position of the vehicle is not equal to the pre-defined parking location when the vehicle subsequently approaches, the logic unit determines one or more directions in which the current position of the vehicle must be adjusted to reduce the distance between the current position of the vehicle and the pre-defined parking location. A display device displays one or more guidance signals corresponding to the one or more directions in which the current position of the vehicle must be adjusted. If the current position of the vehicle is equal to the pre-defined parking location, a stop signal is displayed. | 10-23-2008 |
20100283468 | Remotely located tuning circuits for multi-frequency, multi-puropse induction antennae in downhole tools - A unified circuit without using a relay is proposed to resonate an antenna at more than two frequencies. The use of such analog IC switches are common place for transceiver applications in high RF frequencies (500 MHz and above). However, the use of selectively tuned antennas has for the most part been accomplished by the use of latching relays or fixed value components. The IC switch allows for not only the functionality of a single antenna to be either a transmitter and/or a receiver, but also allows, by adding additional switches to select any number of frequencies to resonate the antenna. This frequency resonation could be at fixed frequency points or sweep in either linear or logarithmic steps. The component selection of capacitors for either method would be controlled by a DSP or other microcontroller device. In one embodiment, an antenna for a downhole measurement tool is provided with a tuning circuit couple by a transformer to at least one antenna. The tuning circuit is disposed entirely within and protected by the hollow body of the tool and selectively tunes the antenna to at least three discrete frequencies. Advantageously, no structural modification is made on the outer surface of the tool to accommodate the tuning circuit. In one embodiment, a switching circuit enables a single antenna to function as both a transmitter and a receiver. | 11-11-2010 |
Roland Edward Chemali, Humble, TX US
Patent application number | Description | Published |
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20120032868 | Remotely Located Tuning Circuits for Multi-Frequency, Multi-Purpose Induction Antennae in Downhole Tools - An antenna system for a downhole tool has an antenna that is configured to operate at a plurality of frequencies. The tuning circuit is on the interior of the tool and shielded from borehole fluids. The tuning circuit is coupled to the antenna by a transformer circuit. | 02-09-2012 |
20130054145 | Apparatus and Methods of Determining Formation Resistivity - In various embodiments, apparatus and methods are provided to determine formation resistivity associated with a well. Measurements taken using sub-arrays of a tool at different distances of investigation can be used to determine formation resistivity, where the sub-arrays are arranged to make azimuthal related measurements. Separations readings related to resistivity can be generated from signals received from different directions and can be analyzed to characterize validity of a measurement reading. Additional apparatus, systems, and methods are disclosed. | 02-28-2013 |
Roland Edward Heersink, Houston, TX US
Patent application number | Description | Published |
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20120168579 | OVERHEAD MOUNTING BRACKET FOR TABBED ACCESSORIES - An overhead slatwall mounting bracket that has an anchoring surface and a biasing surface. The anchoring surface attaches the mounting bracket to a generally horizontal installation surface. The biasing surface may either define or provide one or more elongate slots. The mounting bracket is capable of securely supporting slatwall accessories that include one or more cantilever tabs. Each cantilever tab of the slatwall accessory may be inserted into one of the one or more elongate slots and thereby mount the slatwall accessory to the mounting bracket. The invention provides a means to suspend, mount or temporarily affix the tabbed slatwall accessory from an overhead or horizontal surface by insertion and subsequent rotation of the one or more cantilever tabs extending from the slatwall accessory into the one or more elongate slots. | 07-05-2012 |