Abstract: Systems and methods that allow the formation and distribution of session keys amongst a dynamic group of users communicating over an unreliable, or lossy, network.

Abstract: A sensing coil assembly and method for attaching a sensing coil to a support structure are provided for a fiber optic gyroscope. The method comprises affixing a preformed adhesive to a mating surface of a mounting structure, and coupling an inner surface of the sensing coil to the mating surface of the mounting structure via the preformed adhesive. The mating surface is substantially cylindrical or conical. The sensing coil assembly comprises a hub having a mating surface, an optical fiber coil having an inner surface encircling at least a portion of the mating surface, and a preformed adhesive pattern affixing the mating surface to the inner surface. The mating surface of the hub is substantially cylindrical or conical.

Abstract: A sensing coil assembly and method for attaching a sensing coil to a support structure are provided for a fiber optic gyroscope. The method comprises affixing a first support surface of the support structure to a first mounting surface of the sensing coil via a first preformed adhesive, and affixing a second support surface of the support structure to a second mounting surface of the sensing coil via a second preformed adhesive. The sensing coil assembly comprises a support structure having first and second support surfaces and having a substantially cylindrical hub coupled between the first and second opposing surfaces, an optical fiber coil surrounding at least a portion of the substantially cylindrical hub, and first and second preformed adhesive patterns affixing the optical fiber coil to the first and second opposing surfaces. The first support surface opposes the second support surface.

Abstract: Techniques are disclosed to provide randomized signal transforms and/or their applications. More particularly, a signal (e.g., an audio signal, an image, or a video signal) is transformed by applying randomly-selected basis functions to the signal. The applications of the randomized signal transforms include, but are not limited to, compression, denoising, hashing, identification, authentication, and data embedding (e.g., watermarking).

Abstract: A fiber optic sensing coil is formed by winding a non-coated optical fiber in a substantially circular loop. The non-coated optical fiber includes a core and a cladding. Once the non-coated optical fiber is wound, turns of the non-coated optical fiber are fused so that the cladding of the individual turns of the optical fiber are fused to one another at points of mutual contact.

Abstract: Systems and methods that allow the formation and distribution of session keys amongst a dynamic group of users communicating over an unreliable, or lossy, network.

Abstract: Described herein is a technology for recognizing the content of text documents. The technology determines one or more hash values for the content of a text document. Alternatively, the technology may generate a “sifted text” version of a document. In one implementation described herein, document recognition is used to determine whether the content of one document is copied (i.e., plagiarized) from another document. This is done by comparing hash values of documents (or alternatively their sifted text). In another implementation described herein, document recognition is used to categorize the content of a document so that it may be grouped with other documents in the same category. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.