Abstract: A system for simulating an orthognatic surgery action, including an X-ray scanner, a device of three-dimensional localization of relative positions of dental castings, each associated with a unit locatable in position and orientation by the localization device, and an image processing system for combining tomographic images provided by the scanner with positioning data provided by the localization device to obtain three-dimensional images.

Abstract: A carrier control loop (1) for a receiver of digitally transmitted signals is disclosed comprising, in the direction of signal flow, a quadrature demodulator (3), a symbol recognition device (4), a detector (9) for forming a phase deviation value (&phgr;d) and/or a frequency deviation value (fd), a feedback device (10), and a variable-frequency oscillator (11) connected to the quadrature demodulator (3). An evaluating device (12) determines from signals (I, Q) of the carrier control loop (1) a reliability value (z) for the measured phase deviation value (&phgr;d) and/or frequency deviation value (fd), and controls the carrier control loop (1) in accordance with the determined reliability value.

Abstract: There is disclosed a semiconductor sensor device comprising a semiconductor diaphragm member having a top surface coated with an oxide layer; P+ sensor elements fusion bonded to the oxide layer at a relatively central area of the diaphragm; P+ finger elements fusion bonded to the oxide layer extending from the sensors to an outer contact location of the diaphragm for each finger; and an external rim of P+ material fusion bonded to the oxide layer and surrounding the sensors and fingers. A first glass wafer member is electrostatically bonded at a bottom surface to the fingers and rim to hermetically seal the sensors and fingers of the diaphragm member.

Abstract: A multilayered LED structure which has an active light-emitting layer of porous silicon carbide and a sequence of layers of porous silicon carbide underneath which serves as a quarter-wavelength multilayer mirror. The result is the electroluminescent emission of spectrally narrow visible light in the deep blue to UV range, in a highly directed pattern. The deep, intense blue luminescence is accomplished via the appropriate preparation and passivation of a single porous silicon carbide layer, followed by the deposition of a transparent, semiconducting layer, such as ITO (In2O3) or ZnO.

Abstract: A method is disclosed for establishing trusted communications with associations for communications between users on an Internet Protocol based computer network. The method entails the first user's SNIU determining the Internet Protocol (IP) address of a second user's SNIU on the computer network through the use of custom and ICMP Echo Request and Reply messages. The user's SNIUs exchange security related information needed to complete the establishment of a trusted association. The trusted association is maintained during all communications between the first user and the second user.

Abstract: The invention relates to an overvoltage protection device and to a method for fabricating such a device. A substrate (1) is provided with a first electrode layer (2), above which extends a second electrode layer (3) which is separated from the first electrode layer (2) by a distance (d) determined by the thickness of a spacing layer (4). The spacing layer (4) has an opening (5) which forms a cavity (6) between the electrode layers (2, 3).

Abstract: A dispensing device including a pump assembly for pumping out the viscous liquid material stored in the device. The pump has a cylinder and a piston disposed within the cylinder, wherein the cylinder includes a cylinder inlet valve and the piston includes a cylinder outlet valve. Each operation of the pump assembly causes the piston to move in a first direction toward the cylinder inlet valve and in a second direction away from the cylinder inlet valve. The movement of the piston in the first direction causes the cylinder inlet valve to close and the cylinder outlet valve to open. The movement of the piston in the second direction causes the cylinder inlet valve to open and the cylinder outlet valve to close.

Abstract: In a power amplifier comprising a plurality of cascaded field effect transistors (FETs), a power sensing circuit for sensing the output power of the power amplifier comprising a FET device operative in a first linear mode and second saturated mode of operation, the FET having source, gate and drain electrodes; and a low value resistor connected between the source electrode and a reference potential for generating a voltage drop between the source and the reference potential such that when the FET operates in the saturation mode, the voltage drop is indicative of the output power of the power amplifier.

Abstract: The present apparatus integrates a user interactive display with multiple functional telecommunications capabilities such as scanning, facsimile and telephonic capabilities. The display includes a touch sensitive screen overlay on an electrophoretic display and a handwriting controller for recognizing handwritten impressions on the touch sensitive screen overlay. The scanning, facsimile and telephonic capabilities are manipulated by the user through the interactive display. The apparatus also includes additional interface capabilities to compatible printers and remote computers as well as networking capabilities to remote faxes, cellular communications and pagers. Operations through the additional capabilities are also manipulated by the user interactive display.

Abstract: A method of making polymer-coated pigment particles, involving the steps of providing a plurality of pigment particles, each of which has an outer surface coated with a layer of material that operates as a nucleus for initiating polymerization on the outer surface of each of the pigment particles. The pigment particles are mixed with a reaction mixture containing a solvent and a monomer material, wherein the layer of material coating each of the pigment particles causes the monomer material to polymerize on the outer surface of substantially each of the pigment particles to form a polymer coating thereon.

Abstract: A radio frequency (RF) power amplifier circuit comprising an RF gain stage formed on an integrated circuit (IC) chip comprising at least one field effect transistor configured for amplifying an RF signal to provide an amplified RF signal to an antenna at a given RF power level; a compensation circuit formed on the IC chip for generating a first voltage VS+ and a second voltage VS− at respective first and second output terminals, the voltage difference therebetween corresponding to a level of temperature or process fluctuation from a given level associated with the RF gain stage; and a control circuit comprising an operational amplifier coupled to the output terminals of the compensation circuit for receiving the first and second voltages VS+, VS− and outputting a control signal to the gate of the at least one FET of the RF gain stage to compensate the RF gain stage for the fluctuation, whereby a substantially constant power output to the antenna is maintained.

Abstract: A removable cap for an associated battery compartment housing at least one battery, whereby battery compartment forms a portion of a night vision device which is powered by the battery. The cap includes a one-piece contact that can be attached to the cap in a single operation. The contact includes a unitarily formed leaf-spring which makes mechanical and electrical contact with the battery when the cap is installed on the battery compartment.

Abstract: A portable backstop device for enabling an individual to practice throwing and pitching baseballs without a catcher. The backstop device includes a front panel and a back panel which are attached to each other to form a backstop member. A portion of the back panel extends beyond a bottom edge of the front panel, so that the portion can be folded such that a bottom edge of the portion of the back panel can be detachably connected to the bottom edge of the front panel to define a pocket for collecting thrown and pitched baseballs. A rectangular shaped aperture formed in the front panel of the portable backstop member enables an individual to practice throwing balls and strikes without an umpire. Balls entering the aperture are collected in the pocket thus, saving time and energy spent in retrieving the thrown baseballs and also substantially prevents the baseballs from getting scuffed from hitting backfences and the like.

Abstract: A centrifuge rotor having a top surface, a bottom surface, side surface extending between the top and bottom surfaces, a centrally located bore for installing the rotor on a motor drive shaft of a centrifuge device, and at least one elongated aperture extending down and outwardly from the top surface of the rotor, the at least one elongated aperture for receiving a strip of interconnected centrifuge tubes. The rotor can also include an adapter for mounting the centrifuge tube strip in the at least one elongated aperture when the centrifuge tube strip is sized substantially smaller than the at least one elongated aperture.

Abstract: The present invention relates to a component forming a normally on dual thyristor, which can be turned off by a voltage pulse on the control electrode, including a thyristor, a first depletion MOS transistor, the gate of which is connected to the source, connected between the anode gate and the cathode of the thyristor, and a second enhancement MOS transistor, the gate of which is connected to a control terminal.