Abstract: Three-dimensional structures are fabricated by a process in which a 3D solid model is designed by software at a PC and sliced into a series of 2D layers. Each 2D layer is displayed at a dynamic mask via micro-mirror deflections projected onto a photoresist to form a layer, which is lowered and the process is repeated to build the object layer by layer.

Abstract: A single-computer real-time augmented reality system includes a computer having a processor coupled in signal communication with a PCI bus, a head-mounted display coupled with the computer, a first frame grabber disposed relative to the computer and coupled with the processor, the first frame grabber having a direct digital video output, a left video camera disposed relative to the head-mounted display and coupled with the first frame grabber, a left video display disposed relative to the head-mounted display and coupled with the direct video output of the first frame grabber, a second frame grabber disposed relative to the computer and coupled with the processor, the second frame grabber having a direct digital video output, a right video camera disposed relative to the head-mounted display and coupled with the second frame grabber, and a right video display disposed relative to the head-mounted display and coupled with the direct video output of the second frame grabber.

Abstract: A method and system for computer assisted site navigation includes capturing an image of a scene for providing real-time image data, calibrating a camera and localizing the image by utilizing the image data and retrieved marker registration and floor-map data for providing position and orientation data, transmitting the data to a web server, utilizing the image data and information on the scene retrieved from a database for deriving an augmented view, and displaying the augmented view.

Abstract: A method for protein identification in complex mixtures that utilizes affinity selection of constituent proteolytic peptide fragments unique to a protein analyte. These “signature peptides” function as analytical surrogates. Mass spectrometric analysis of the proteolyzed mixture permits identification of a protein in a complex sample without purifying the protein or obtaining its composite peptide signature.

Abstract: An augmented reality system includes a video source, and a database. The video source resides at a location and produces an image. At least one encoded marker resides within the image. A marker detector is coupled to the video source and is adapted to derive encoded data from the marker residing within the image. A localization processor is adapted to receive data from the marker detector and to generate data regarding location and orientation of the marker. The localization processor retrieves information from the database that is related to the location and orientation of the marker. The localization processor makes the information retrieved from the database available to a user.

Abstract: A method for determining a pose of a user is provided including the steps of capturing a video image sequence of an environment including at least one coded marker; detecting if the coded marker is present in the video images; if the marker is present, extracting feature correspondences of the coded marker; determining a code of the coded marker using the feature correspondences; and comparing the determined code with a database of predetermined codes to determine the pose of the user. According to an embodiment, the coded marker includes four color blocks arranged in a square formation and the determining a code of the at least one marker further includes determining a color of each of the four blocks. According to another embodiment, the marker includes a coding matrix and a code of the marker being determined by numbered squares of the coding matrix being covered by a circle.

Abstract: Acoustic attenuation materials are described that comprise outer layers of a stiff material sandwiching a relatively soft elastic material therebetween, with means such as spheres, discs or wire mesh being provided within the elastic material for generating local mechanical resonances that function to absorb sound energy at tunable wavelengths.

Abstract: A video editing system or tool for E-commerce utilizing augmented reality (AR) technology combines real and virtual worlds together to provide an interface for a user to sense and interact with virtual objects in the real world. The AR video editing system is usable in conjunction with an ordinary desktop computer and a low-cost parallel port camera. A known camera calibration algorithm is utilized together with a set of specially designed markers for camera calibration and pose estimation of the markers. OpenGL and VRML (Virtual Reality Modeling Language) for 3D virtual model rendering and superimposition. are utilized. Marker-based calibration is utilized to calibrate the camera and estimate the pose of the markers in the AR video editing system. The system comprises video input/output, image feature extraction and marker recognition, camera calibration/pose estimation, and virtual reality (VR) model rendering/augmentation.

Abstract: A method and system for computer assisted site navigation comprises the steps of capturing an image of a scene for providing real-time image data; calibrating the camera and localizing the image by utilizing the image data and retrieved marker registration and floor-map data for providing position and orientation data; transmitting the data to a web server; utilizing the image data and information on the scene retrieved from a database for deriving an augmented view; and displaying the augmented view.

Abstract: A method for protein identification in complex mixtures that utilizes affinity selection of constituent proteolytic peptide fragments unique to a protein analyte. These “signature peptides” function as analytical surrogates. Mass spectrometric analysis of the proteolyzed mixture permits identification of a protein in a complex sample without purifying the protein or obtaining its composite peptide signature.

Abstract: A mobile station monitoring system is provided in accordance with the invention. The mobile station monitoring system includes a maintenance task module which accumulates performance data reported within a mobile station, a transmission conduit for transmitting accumulated performance data to a central location, and a central receiver at the central location which receives and deciphers the transmitted accumulated performance data. The invention also includes a mobile station having a maintenance task module which accumulates performance data reported within the mobile station, and a transmission conduit for transmitting accumulated performance data to a central receiver. In accordance with the invention, a method for monitoring a mobile station is also provided. The method includes the steps of accumulating performance data reported within a mobile station, transmitting accumulated performance data to a central location, and receiving and deciphering the transmitted accumulated performance data.

Abstract: A hydrophilic coating composition for hydrophilically coating a metallic surface. The coating composition comprises a fluorocarbon-containing hydrophilic polymer comprising units of hydrophilic monomer and fluorocarbon-containing hydrophobic comonomer. The coating composition produces hydrophilic coatings on the metallic surface having a contact angle below about 50°.

Abstract: A prototyping method and apparatus incorporating the invention enables rapid fabrication of heterogeneous parts with non-planar and/or layer-by-layer printing. An electronically addressable array of micro-electrodes is employed as a "printing" panel, A processor controls the printing panel through use of two dimensional planar slice data. Such slice data is used to address electrodes that correspond to points in the slice image. When the printing panel is brought close to a flat powder bed, a static electrical field at each addressed electrode attracts particles to the electrode's surface. The powder image on the printing panel electrodes is then placed over a substrate and the powder image is released to the substrate by applying a reverse polarity voltage to the electrodes. Multiple applications of powder image layers, with intervening fixing of each image layer, enables a three dimensional object to be rapidly constructed.

Abstract: Improved commercial single crystal wafers (250), as shipped to end users form a full circle, and comprise a "stress concentration notch" (172) which accurately defines a desired cleavage plane. The stress concentration notch is introduced into the wafers in bulk by means of a properly oriented cut along the length of a single crystal ingot, after machining the ingot to the desired end product diameter, and prior to sawing the ingot into slices. The stress concentration notch uniquely defines the first and second faces of the wafer.

Abstract: Improved commercial single crystal wafers (250), as shipped to end users form a full circle, and comprise a "stress concentration notch" (172) which accurately defines a desired cleavage plane. The stress concentration notch is introduced into the wafers in bulk by means of a properly oriented cut along the length of a single crystal ingot, after machining the ingot to the desired end product diameter, and prior to sawing the ingot into slices. The stress concentration notch uniquely defines the first and second faces of the wafer.

Abstract: The present invention relates to the process for preparing terpolymer of tetrafluoroethylene (TFE), ethylene (E), and a third monomer. According to the present invention, dicarbonate peroxide is used as initiator, 1,1,2-trichloro-1,2,2-trifluoro-ethane as the reaction medium and compounds of molecular formula C.sub.n R.sub.2n+2, wherein, n=0,1, or 2;R=H, Cl or F, are gaseous chain telomeric agents to control the average molecular weight of copolymers, the formula of third monomer is CF.sub.2 XCOCF.sub.2 X' or ##STR1## wherein X=X'=Cl or F, R.sub.1 =CF.sub.3 or CH.sub.3,R.sub.2 =CF.sub.3, CH.sub.3 or H, and R.sub.3 =H or F, usually the molar ratio of TFE to E is from 60:40 to 40:60 with the content of the third monomer being from 0.1% to 10%, based on the total molar amount of TFE and E.