Abstract: To address the need for new techniques that are able to reduce delays in frame selection, a method such as that depicted in diagram 10 of FIG. 1 may be employed. A packet from one call leg active for a call is received (11) during a particular frame interval of the call. In response to receiving the packet, a determination (12) is made as to whether to make a frame selection decision for the frame interval. This determination is based upon the number of call legs active for the call and upon the number of call legs for which a packet has already been received. When (13) it is determined to make a frame selection decision, a packet is selected (14) and forwarded (15) without waiting for the end of the frame interval.

Abstract: A valve proportioning assembly that incorporates a check valve assembly is improved in manufacture and assembly. The valve proportioning assembly includes a housing having a blind opening that receives a sub-assembly of two separate non-metallic components that mate via an interference fit or snap-fit together enclose the check valve assembly. The non-metallic components enclose the check valve assembly. It includes a spring and spring follower so that a sub-assembly is formed for insertion into a blind bore. This minimizes potential misassembly, provides for a wider array of design configurations, and offers the additional advantage of adding more complete informational indicia directly into the molded components.

Abstract: A wheel speed sensor assembly improves the performance and also simplifies manufacturing. It includes a one-piece pole and magnetic flux concentrator having first, second, and third regions of distinct diameters. Overmolded components at opposite ends of the pole/concentrator provide a cavity for the winding that eliminates the conventional use of a bobbin. A magnet is received over the pole between the first end and the intermediate region so that the magnet is more closely disposed adjacent the pole end of the sensor assembly. A molded end cap is provided at the opposite end of the assembly and one cap design can be easily substituted for another as desired.

Abstract: A self-adjusting retention bushing and assembly for a vehicle anti-lock braking system using a resilient spring bushing with an integral locking prong is described. The locking prong is deflected and spring loaded to engage the sensor when the sensor is installed. The locking prong resists movement of the sensor relative to the bushing. The deflected locking prong also resists retraction of the bushing from the mounting block. The locking features prevent inadvertent movement of the sensor during assembly, repair or use.

Abstract: A wheel speed sensor assembly improves the performance and also simplifies manufacturing. It includes a one-piece pole and magnetic flux concentrator having first, second, and third regions of distinct diameters. Overmolded components at opposite ends of the pole/concentrator provide a cavity for the winding that eliminates the conventional use of a bobbin. A magnet is received over the pole between the first end and the intermediate region so that the magnet is more closely disposed adjacent the pole end of the sensor assembly. A molded end cap is provided at the opposite end of the assembly and one cap design can be easily substituted for another as desired.

Abstract: A method for monitoring the distribution of braking force over a plurality of wheels during a braking event is disclosed. The method employs a multi-function sensor (62) which includes both wheel speed sensing capability in association with a tone ring (64), and temperature sensing capability in the form of a temperature sensor (180). The temperature sensor is preferably a thermocouple sensor such as an iron-constantan thermocouple sensor. The temperature of the brake environment during a braking event is roughly proportional to the work expended by the brake in decelerating the wheel, and so the braking force distribution over the plurality of wheels may be characterized by the variation in the reported temperatures during the braking event.

Abstract: A lightweight, non-metallic valve is preferably formed of molded plastic. The valve has an hour-glass configuration or enlarged recesses formed therein to reduce the overall mass of the assembly and provide increased sensitivity to low flow rates. Sealing O-rings are snap fit into grooves at opposite ends of the symmetrical assembly.

Abstract: A system and method for quantum key delivery in a single-photon, free-space cryptography scheme including a transmitter and a receiver. The transmitter includes two pairs of photon sources, each of which represents a specific photon polarization direction. The first pair of photon sources represents a first polarization basis while the remaining pair of photon sources represents a second polarization basis. The first and second polarization basis are rotated with respect to each other so as to produce non-orthogonal polarization eigenstates. A transmitter polarizing beamsplitter corresponding to each of the pairs of the photon sources is provided whereby the polarizations of each of the photon sources of each pair of photon sources are recombined. A transmitter non-polarizing beamsplitter is provided whereby the recombined polarizations are combined for output to the receiver.

Abstract: An air dryer of the type fitted with a purge valve 92 is fitted with an input cut-off valve (81) which closes when the purge valve is opened in order that the compressor output line 2 is not vented thereby maintaining compressor and/or turbo charger pressure during off-load conditions.