Abstract: An apparatus and method for measuring the tension in bolts, screws, rivets, and other fasteners, is disclosed wherein the deformation of the fastener head is measured (or the end of fastener in such cases as there is not a distinct formed head, for example stud bolts). The deformation generally is an analytic function of the tension in the fastener. The deformation is a continuous two-dimensional distribution over the surface of the fastener head, which allows redundant measurement and therefore more reliable measurement of fastener total axial tension, and also allows in some instances an evaluation of the bending stresses in the fastener from the distortion of the deformation pattern on the head. An advantage of the invention is that the length of the fastener or its temperature need not be known. The measurements can be determined by optical, capacitance, optical imaging, air gauging and piezoresistive techniques.

Abstract: An apparatus and method for measuring the tension in bolts, screws, rivets, and other fasteners, is disclosed wherein the deformation of the fastener head is measured, (or the end of fastener in such cases as there is not a distinct formed head, for example stud bolts). The deformation generally is an analytic function of the tension in the fastener. The deformation is a continuous two-dimensional distribution over the surface of the fastener head, which allows redundant measurement and therefore more reliable measurement of fastener total axial tension, and also allows in some instances an evaluation of the bending stresses in the fastener from the distortion of the deformation pattern on the head. An advantage of the invention is that the length of the fastener or its temperature need not be known. The measurements can be determined by optical, capacitance, optical imaging, air gauging and piezoresistive techniques.

Abstract: A system for retrieving and displaying programming information in response to selection of a category of programming information. Programming information is presented via a schedule display having a category display, a subcategory category display, and a program display. The category display displays an array of category tiles representing categories of programming information. The subcategory display displays an array of subcategory tiles representing subcategories that are associated with the categories of the category display. The program display displays an array of program tiles that are associated with the subcategories of the subcategory display. A viewing panel extends along each of the displays for displaying one each of the category, subcategory, and program tiles. Classes of programming information are selected by scrolling the tiles of the associated displays until the desired class items are presented within the viewing panel.

Abstract: A system for retrieving and displaying programming information in response to selection of a category of programming information. Programming information is presented via a schedule display having a category display, a subcategory category display, and a program display. The category display displays an array of category tiles representing categories of programming information. The subcategory display displays an array of subcategory tiles representing subcategories that are associated with the categories of the category display. The program display displays an array of program tiles that are associated with the subcategories of the subcategory display. A viewing panel extends along each of the displays for displaying one each of the category, subcategory, and program tiles. Classes of programming information are selected by scrolling the tiles of the associated displays until the desired class items are presented within the viewing panel.

Abstract: An interactive television system has a centrally located head end server coupled to service multiple, remotely located set-top boxes. Each set-top box runs an electronic programming guide that provides an on-screen program grid listing program titles in relation to their scheduled viewing times and channel numbers. The viewer is permitted to scroll through the program grid to list titles of past, current, and future programs. A database, resident at the head end server, supplies the program titles and scheduled viewing times of the past, current, and future programs to the electronic programming guide. The head end server transmits real-time video data streams of the available programs to the EPG. A continuous media server, resident at the head end server, stores the video data streams to build a reserve of previously played programs. The media server can also store video preview clips of future programs.

Abstract: A system for retrieving and displaying programming information in response to selection of a category of programming information. Programming information is presented via a schedule display having a category display, a subcategory category display, and a program display. The category display displays an array of category tiles representing categories of programming information. The subcategory display displays an array of subcategory tiles representing subcategories that are associated with the categories of the category display. The program display displays an array of program tiles that are associated with the subcategories of the subcategory display. A viewing panel extends along each of the displays for displaying one each of the category, subcategory, and program tiles. Classes of programming information are selected by scrolling the tiles of the associated displays until the desired class items are presented within the viewing panel.