Abstract: A system and method is provided for reducing the sensitivity of the rotation rate measurement to the frequency dependence of the feedback modulator. Specifically, the system and method uses a minimal bias switching technique to reduce rate errors associated with the low frequency 2? resets in a closed loop fiber optic gyroscope with a phase modulator with a different phase shift associated to low and high frequencies. In general, the minimal bias switching technique reduces the low frequency components of the feedback modulation drive by increasing the frequency of the 2? resets. As a consequence, the system and method reduces the low frequency component of the feedback modulator drive to avoid errors that occur with the low frequency 2? resets.

Abstract: Systems and corresponding methods are provided for navigating a data structure comprising a plurality of nodes. Each node in the data structure is associated with content from a content source and at least a keyword defining the content. The system receives a voice query to access content in one of the plurality of nodes. The system then recognizes one or more search keywords in the voice query based on a navigation grammar defined by a first active navigation scope associated with a first set of nodes in the data structure. The system then searches the first set of nodes to find a node with one or more keywords that best match the search keywords. The node that best matches the search keywords is then visited. The system provides content of the visited node.

Abstract: A method comprising: providing a navigation tree comprising a semantic, hierarchical structure, having one or more paths associated with content of a conventional markup language document and a grammar comprising vocabulary including one or more keywords; receiving a request to access the content; responsive to the request, traversing a path in the navigation tree, if the request includes at least one keyword of the vocabulary, is provided.