Abstract: A method and system for sending and receiving binary bit stream in a composite video signal, such as a NTSC signal. The binary bit stream is modulated according to quadrature amplitude modulation, converted to analog and translated to an intermediate frequency relative to the composite video signal and the associated sync pulses, and combined with the composite video signal. At reception of a composite video signal that includes the modulated bit stream, the sync pulses of the composite video signal are determined by extracting the composite video signal from the modulated bit stream. Also, the modulated bit stream is extracted from the composite video signal, separated into its component parts based on the sync pulses, and combined into a binary bit stream.

Abstract: Compounds having the structural formula I or a pharmaceutically acceptable salt thereof, wherein R is optionally substituted phenyl, furanyl, thienyl, pyridyl, pyridyl N-oxide, oxazolyl or pyrrolyl, or cycloalkenyl R1, R2, R3, R4 and R5 are H, alkyl or alkoxyalkyl; and Z is optionally substituted aryl or heteroaryl are disclosed. Also disclosed is the use of compounds of formula I in the treatment of central nervous system diseases, in particular Parkinson's disease, alone or in combination with other agents for treating Parkinson's disease, and pharmaceutical compositions comprising them.

Abstract: An apparatus to excise a sample of material and temporarily store sample has a hollow clamshell casing with a blended grip under which is a tubular sample sleeve extends downwards from the base of the grip. Within the casing an electric motor is housed which drives, via juxtaposed spur gears, the sample sleeve in a rotational manner. The end of the sample sleeve, distal from the clamshell casing, forms a cutting edge circumscribing a circular region. An ejection rod slides reciprocally within the sample sleeve between a stowed position and an expulsion position. When the ejection rod moves from the stowed position to the expulsion position it will extend past the cutting edge and expel any material sample contained within the sample sleeve. A user cuts a sample from a source material resting on a pliable substrate, using the cutting edge of the sample sleeve when the ejection rod is in the stowed position.

Abstract: An apparatus to excise a sample of material and temporarily store sample has a tubular clamshell casing at an angle to the horizontal, blended to a tubular boss under which is a tubular sample sleeve extending downwards from the boss. Within the casing an electric motor is housed which drives, via gears, the sample sleeve in a rotational manner. The end of the sleeve, distal from the boss, forms a cutting edge circumscribing a circular region. An ejection rod slides reciprocally within the sample sleeve between a stowed position and an expulsion position. When the ejection rod moves from the stowed position to the expulsion position, it will extend past the cutting edge and expel any sample of material contained within the cutting sleeve. A user cuts a sample from a source material using the cutting blade of the apparatus when the ejection rod is in the stowed position.

Abstract: A filter and processing sequence is described that efficiently combines and performs two or more tasks required to demodulate a composite 3G (third generation) wireless signal formed by a combination of wideband 3.84 MHz (UMTS or UTRA) carriers and narrowband 1.2288 MHz CDMA-2000 carriers. The three tasks, applied to each spectral component of the 3G wireless signal and described in the order of a traditional filtering structure are: Spectral translation, Bandwidth Reduction, and Sample Rate Selection. These tasks are traditionally implemented in three distinct pieces of hardware or software modules.

Abstract: There is disclosed a fractional-spaced equalizer (FSE) that is capable of performing joint intersymbol-interference (ISI) cancellation and matched filter (MF) processing. The FSE employs a constrained optimization technique to control the out-of-band frequency response of the equalizer's FIR while, at the same time, controlling the pass-band and roll-off of the FIR to cancel ISI. The format of the constrained optimization technique permits a single bank of multipliers elements to service the inner product computations associated both with the ISI cancellation and MF operations. This time-multiplexing technique promotes a conservation of hardware associated with the MF, and provides for a reduction in the computational complexity leading to an increase in power efficiency.

Abstract: A filter and processing sequence is described that efficiently combines and performs two or more tasks required to demodulate a composite 3G (third generation) wireless signal formed by a combination of wideband 3.84 MHz (UMTS or UTRA) carriers and narrowband 1.2288 MHz CDMA-2000 carriers. The three tasks, applied to each spectral component of the 3G wireless signal and described in the order of a traditional filtering structure are: Spectral translation, Bandwidth Reduction, and Sample Rate Selection. These tasks are traditionally implemented in three distinct pieces of hardware or software modules.

Abstract: An electromagnetic fuel injector having improved wear characteristics comprises a body having a fuel inlet and a fuel outlet. A valve seat is sealably connected to the body, and a moveable valve member positioned at the fuel outlet for controlling the flow of fuel from the outlet comprises a valve outlet element that provides a sealing interface with the valve seat. The valve member and included valve outlet element further comprise wear surfaces that are subject to repeated impact and/or sliding contact; at least a portion of these wear surfaces comprise an applied layer of diamond-like carbon (DLC) stabilized by inclusion of greater than 30 weight percent of a carbide-forming material selected from the group consisting of silicon, titanium, and tungsten.

Abstract: A method and system for sending and receiving binary bit stream in a composite video signal, such as a NTSC signal. The binary bit stream is modulated according to quadrature amplitude modulation, converted to analog and translated to an intermediate frequency relative to the composite video signal and the associated sync pulses, and combined with the composite video signal. At reception of a composite video signal that includes the modulated bit stream, the sync pulses of the composite video signal are determined by extracting the composite video signal from the modulated bit stream. Also, the modulated bit stream is extracted from the composite video signal, separated into its component parts based on the sync pulses, and combined into a binary bit stream.

Abstract: A method and system for sending and receiving binary bit stream in a composite video signal, such as a NTSC signal. The binary bit stream is modulated according to quadrature amplitude modulation, converted to analog and translated to an intermediate frequency relative to the composite video signal and the associated sync pulses, and combined with the composite video signal. At reception of a composite video signal that includes the modulated bit stream, the sync pulses of the composite video signal are determined by extracting the composite video signal from the modulated bit stream. Also, the modulated bit stream is extracted from the composite video signal, separated into its component parts based on the sync pulses, and combined into a binary bit stream.

Abstract: An antenna pointing system automatically aligns an antenna with a geo-synchronous satellite using a Ku band signal, which has a relatively broad bandwidth, with sufficient accuracy for Ka band signal transmission, which has a relatively narrow bandwidth. Initially, the antenna is pointed at the selected satellite so as to receive the Ku band signal. The system obtains a series of signal strength readings over a predetermined azimuth (or elevation) region, such as plus/minus two degrees, from which a new peak location is selected. Signal strength data is then obtained over a predetermined elevation (or azimuth) region. Another signal peak location is selected based on the elevation data. Azimuth and elevation data are alternately collected for refining the peak of the Ku signal so as to optimize Ka signal transmission capability.

Abstract: The fatigue life of gears, for example, the gears in a sun gear-planetary gear set, is markedly improved by forming the respective gears by ordinary manufacturing practices and then running each new gear against a durable, but expendable, dummy of its counter-gear. The teeth of a dummy sun gear may be suitably hardened and used under suitable loads to minimally reshape the teeth of a plurality of newly-made pinions so that they are smoothed and better fit an intended sun gear. Similarly, the roughened teeth of a hardened or hard coated sun gear can be smoothed by running it for a few rotations against an expendable pinion.

Abstract: The invention includes an on-board diagnostic system for monitoring exhaust gas from an automotive combustion engine and includes a sample port connected to the exhaust piping, preferably downstream from the catalytic converter. The exhaust port leads to a sample cell to which an infrared spectrometry system is operably connected to measure the concentration of hydrocarbons in the sample cell. An air pump is connected to the exhaust port and communicates with the sample cell. The air pump is operated to continuously purge the sample cell by pushing small amounts of clean air through the sample cell into the exhaust.

Abstract: The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.