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5846 results about "Navigation system" patented technology

A navigation system is a (usually electronic) system that aids in navigation. Navigation systems may be entirely on board a vehicle or vessel (on the ships) bridge, or they may be located elsewhere and communicate via radio or other signals with a vehicle or vessel, or they may use a combination of these methods.

Internet navigation using soft hyperlinks

A system for internet navigation using soft hyperlinks is disclosed, in connection with an illustrative information retrieval system with which it may be used. The navigation tool provides freedom to move through a collection of electronic documents independent of any hyperlink which has been inserted within an HTML page. A user can click on any term in a document page, not only those that are hyperlinked. For example, when a user clicks on an initial word within the document, the disclosed system employs a search engine in the background to retrieve a list of related terms. In an illustrative embodiment, a compass-like display appears with pointers indicating the first four terms returned by the search engine. These returned terms have the highest degree of correlation with the initial search term in a lexical knowledge base that the search engine constructs automatically. The disclosed system allows the user to move from the current document to one of a number of document lists which cover different associations between the initial word clicked on by the user and other terms extracted from within the retrieved list of related terms. The disclosed system may further allow the user to move to a document that is considered most related to the initial word clicked on by the user, or to a list of documents that are relevant to a phrase or paragraph selection indicated by the user within the current page.

Method and apparatus for positioning a bone prosthesis using a localization system

Methods and apparatus using a surgical navigation system to position the femoral component of a prosthetic hip during hip joint replacement surgery without separately affixing a marker to the femur. The navigation system acquires the center of rotation of the hip joint as well as at least one point on the femur in the pelvic frame of reference. From these two points, the navigation system calculates the position and length of a first line between the center of rotation of the hip joint and the point on the femur. Optionally, a second point on the femur that is not on the first line is palpated. The system can calculate the position and length of a second line that is perpendicular to the first line and that runs from the first line to the second palpated point on the femur. The prosthetic cup is implanted and its center of rotation is recorded. A tool for forming the bore within which the stem of the femoral implant component will be placed is tracked by the navigation system. While the tool is fixed to the femur, the surgeon re-palpates the same point(s) on the femur that were previously palpated. The navigation system calculates the position and length of a first line between the center of rotation of the prosthetic cup and the re-palpated first point. If a second point on the femur was re-palpated, the navigation system also calculates the position and length of a perpendicular line between the first line and the second point. The surgical navigation system uses this information to calculate and display to the surgeon relevant information about the surgery, such as change in the patient's leg length and/or medialization/lateralization of the joint.

Method and apparatus for accessing information, computer programs and electronic communications across multiple computing devices using a graphical user interface

A GUI containing a panel along each of its edges is produced within a computer's display. Each of the four panels are always visible and accessible within the GUI and contain items that display or reference network-based information, communication, navigational systems, computer programs, and other items. These items have been assigned to the panels based upon a hierarchal containment system which, in the preferred embodiment of the invention, uses the categories “people, places, things, and home” as its first logical grouping of the various items and services a user would seek to utilize within the GUI. This organizational system, and its associated visual representation within the panels, enables the GUI to be displayed and operated within multiple computer devices, even though the designs of those devices may include a wide range of display and control systems. This consistency across various computing devices enables a user to quickly apply knowledge gained from having used the GUI on another computing device. Furthermore, the items presented within the GUI, as well as the GUI's configuration, are stored in, and retrieved from, a networked “server” computer thereby enabling a user to produce and access their familiar GUI workspace and items using a variety of networked computer devices. The GUI therefore may be accessed within multiple computing devices and provide access to information, computer programs, and electronic communications.
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