Abstract: A data-descriptive meta language file, such as XML, is created that defines the layout operation within the visual interface of a component-based application at runtime. At runtime, the application receives a data-descriptive meta language file that defines the layout operation of the various components within the application visual interface. The application parses the data-descriptive meta language file and uses the parsed information to complete the layout and operation of the rendered interface. The runtime application includes functionality that uses selected data to specify unique applications and/or unique content associated with the application.

Abstract: Methods for chaining together two or more navigation or survey stations to complete a project, where only adjacent stations in the chain have contact with each other. The location of a mobile reference station is determined and corrected, if necessary, using location determination (LD) signals from an LD system such as GPS, GLONASS, LEO or the like. The location of a first rover station is determined using RTK information and signal differencing from the mobile reference station. The location of a second rover station is determined using RTK information and signal differencing from the first rover station, in a chain of location determinations. Standard electronic distance measuring equipment and techniques can be used to supplement these methods in an integrated approach. Location consistency checks are provided by using RTK analysis to redetermine the location of one or more preceding stations in the chain.

Abstract: A method for accurately determining the position of a roving receiver positioned on or above the Earth's surface, relative to the position of a reference receiver whose position is known with sufficient accuracy, using measurements of signal phase transmitted at one or more carrier frequencies and received from each of four or more satellites in a Satellite Positioning System (SPS). Phase double differences are formed, using the reference and roving receivers and any two satellites drawn from four or more satellites, using phase information obtained from either or both of the two carrier signal frequencies. Phase correction information, in the form of estimates of integer wavelength ambiguities, is then obtained from two sets of ambiguity estimates computed with the roving receiver antenna in each of two specified positions, with the reference receiver antenna lying between and being collinear with the two roving receiver-antenna positions.