Abstract: An accessory (100) has a housing (102) for varying a number of accessible poles (110A, 110C, 112A, 112C, 112E). The accessory includes a plurality of projections (110, 112) each having at least one pole coupled to an insulator (110B, 112B, 112D) to prevent electrical contact with another pole, a plurality of conduction wires (219) each insulated and connected at a first end to a corresponding pole of the plurality of projections, and at least one lever (105) coupled to a corresponding one or more of the plurality of projections for sliding one or more projections in and out of the housing in a plurality of positions (106A-C) after a force is applied on such lever, thereby controlling the exposure of a portion of at least one pole of each of one or more of the projections.

Abstract: Cost information is tracked for a data packet propagated through a node by receiving a data packet, creating a cost carrier descriptor and then forwarding the data packet to another node.

Abstract: A method for displaying changes in spectral content of data signals over periods of time using a computer system. The method includes the steps of transforming time segments of digitized data signals into a frequency based spectral representation of the digitized data. The resulting spectral data are then grouped into appropriate frequency bins. Each frequency bin is normalized by the frequency range of the bin. The energy or power in each frequency bin is then multiplied by fn, where f represents an estimate of the frequency of the bin, and n is an exponent which is used to normalize the frequency content of the data. A logarithmic value is then calculated for each frequency bin. The logarithmic value of each frequency bin for each time period is then mapped to a color or gray-scale value.

Abstract: An integrated circuit for quantum computing may include a superconducting shield to limit magnetic field interactions.

Abstract: A coupling system to couple a first and a second qubit in response to a state of the coupling system that may be set by two input signals.

Abstract: A header/manifold construction (14) is adapted to receive a plurality of flattened tube ends (42) in a heat exchanger (10) having a plurality of flattened tubes (12). The header/manifold construction (14) includes first and second pieces (20, 22) extending along a longitudinal axis (24). The first piece (20) has a C-shaped transverse cross defined by an elongate opening (44) extending along the longitudinal axis (24), with a plurality of tube slots (40) spaced along the axis (24) opposite from the opening (44). The second piece (22) has a T-shaped transverse cross section with two side legs (48, 50) extending from opposite sides of a center leg (46), with the legs (46, 48, 50) being bonded to surfaces of the first piece (20).

Abstract: A heat exchanger including a tube having inlet ends and outlet ends and defining a flow path therebetween. The tube can have a first section and a second section arranged at an angle with respect to the first section. Each of the first section and the second section can include a first subsection and a second subsection arranged at an angle with respect to the first subsection.

Abstract: A device for training the muscles used during a golf club swinging motion. The device includes a connector coupled to the head of the golf club and a resilient and extensible tether having a proximal end for connection to the connector and a distal end for connection to a trainee's body. The device is used by causing the trainee to engage in a golf swing motion so that the tether provides resistance to the trainee's muscles in the sequence used to perform the swing.

Abstract: A method for displaying changes in spectral content of data signals over periods of time using a computer system. The method includes the steps of transforming time segments of digitized data signals into a frequency based spectral representation of the digitized data. The resulting spectral data are then grouped into appropriate frequency bins. Each frequency bin is normalized by the frequency range of the bin. The energy or power in each frequency bin is then multiplied by fn, where f represents an estimate of the frequency of the bin, and n is an exponent which is used to normalize the frequency content of the data. A logarithmic value is then calculated for each frequency bin. The logarithmic value of each frequency bin for each time period is then mapped to a color or gray-scale value.

Abstract: An ice cube tray evaporator (10) includes a back plate (12) and a grid (14) of rectangular-shaped ice cube forming compartments (16) on the back plate (12). Each of the compartments (16) is defined by a back wall (18), and four side walls (20,22,24,26), with two of the side walls (20,22) being defined by parallel microchannel tube legs (28) spaced opposite from each other and the other two of the side walls (24,26) being defined by heat conductive strips (30).

Abstract: A passive thermal control blanket and a method for its manufacture, the blanket including a plastic substrate on which is deposited a film that is a homogeneous mixture of silicon and germanium, thereby combining the excellent reflective and electrostatic discharge properties of germanium with the superior adhesion and corrosion resistance properties of silicon. The uniform mixture is preferably obtained by sputtering the two materials simultaneously onto the substrate, using either separate targets, a single mosaic target, or a single composite target.

Abstract: Workload reporting is provided in a distributed transaction processing environment having call trees in which a child application performs a child transaction on behalf of a parent application performing a parent transaction. When a parent application starts a transaction, it makes a call to a reporting agent, passing to it any parent correlator the parent application may have received from a calling application. The reporting agent returns to the parent application a child correlator, which the parent application passes to any child application it calls to perform child transactions. The child correlator contains end-to-end information classifying the parent transaction as well as a hop count indicating the depth of the child application in the call tree. The reporting agent uses the hop count to construct a topology in which commonly classified applications are grouped according to their depth in the call tree for better visualization of performance of individual applications.

Abstract: A superconducting oscillator/counter analog-to-digital converter (50) that provides simultaneous in-phase and quadrature-phase of an RF input signal. The RF input signal is converted to a series of SFQ input pulses by a superconducting voltage controlled oscillator (12). A clock circuit (26) generates a series of SFQ clock pulses. The SFQ input pulses and the SFQ clock pulses are applied to a pulse repulsion circuit (52) that outputs the SFQ input pulses and the SFQ clock pulses spaced apart in time. In one embodiment, the pulse repulsion circuit (52) includes two Josephson transmission lines (60, 62), where the magnetic coupling between the lines (60, 62) provides the SFQ pulse repulsion.

Abstract: A Harvard-architecture computer system includes a processor, an instruction cache, a data cache, and a write buffer. The caches are both set-associative in that they each have plural memories; both caches perform parallel reads by default. In a parallel read, all cache-memory locations of the selected cache corresponding to the set ID and word position bits of a requested read address are accessed in parallel while it is determined whether or not one of these locations has a tag matching the tag portion of the requested read address. If there is a “hit” (match), then an output multiplexer selects the appropriate cache memory for providing its data to the processor. The parallel read thus achieves faster reads, but expends extra power in accessing non-matching sets. A cache receiving a read request while the processor is waited performs a serial read instead of a parallel read. In a serial read, the tag match is performed before the data is accessed.

Abstract: In an exemplary embodiment of the present invention, a navigation system suitable for use in civilian airspace includes a first precise positioning service (PPS) global positioning system (GPS) receiver in a first line replaceable unit (LRU). A second standard positioning service (SPS) global positioning system (GPS) receiver in either the same line replaceable unit (LRU) or in a second line replaceable unit (LRU) is also included. The second standard positioning service (SPS) global positioning system (GPS) receiver is suitable for at least one of certification, upgrade and replacement independent of the first precise positioning service (PPS) global positioning system (GPS) receiver.

Abstract: A Josephson junction transmission line (50) for transmitting single flux quantum pulses. The transmission line (50) includes a current source (53), a plurality of isolation inductors (52, 54) electrically coupled in series along the transmission line (50), and a plurality of Josephson junction circuits (60, 70) electrically coupled in parallel along the transmission line (50). Each of the Josephson junction circuits (60, 70) includes only a Josephson junction (62, 72) and a parasitic inductor (64, 74) coupled in series. The Josephson junction circuits (60, 70) do not include a damping resistor in order to reduce timing uncertainty and to enhance propagation speed.

Abstract: A Josephson junction transmission line (50) for transmitting single flux quantum pulses. The transmission line (50) includes a current source (53), a plurality of isolation inductors (52, 54) electrically coupled in series along the transmission line (50), and a plurality of Josephson junction circuits (60, 70) electrically coupled in parallel along the transmission line (50). Each of the Josephson junction circuits (60, 70) includes only a Josephson junction (62, 72) and a parasitic inductor (64, 74) coupled in series. The Josephson junction circuits (60, 70) do not include a damping resistor in order to reduce timing uncertainty and to enhance propagation speed.

Abstract: A superconductor circuit (50) for providing active timing arbitration between SFQ pulses. The superconductor circuit (50) includes a first superconducting transmission line (52) having at least one inductor (54) for transmitting first input pulses, and a second superconducting transmission line (62) having at least one inductor (64) for transmitting second input pulses that are correlated to the first input pulses. The first and second superconducting transmission lines (52, 62) are coupled together in order to generate a flux attraction between the first and second input pulses for reducing relative timing uncertainty.

Abstract: The level of bias current (12) required by a superconductor integrated circuit (2 & 4) is lowered by separating the circuit into portions having separate ground planes and supplying the bias current to the circuit portion (2) in one ground plane in series (10) with that for the circuit portion (4) in another ground plane. To maintain DC isolation between those circuit portions, SFQ pulses inputted (SFQ IN) move across the separate ground planes through a pair of inductively coupled SQUIDS (3 & 5) that define a DC transformer; and a combiner (7) reconstitutes and outputs the SFQ pulses. To provide inductive coupling the DC transformer includes a primary (25) and isolated secondary (5) winding.

Abstract: A superconducting A/D converter (10) has an error correction system (70) for eliminating non-linearities in a primary quantizer (30). The converter (10) includes a primary quantizer (30), a primary SFQ counter (50), and the error correction system (70). The primary quantizer (30) generates primary SFQ pulses based on an average voltage of an analog input signal. The primary SFQ counter (50) converts the primary SFQ pulses into a digital output signal based on a frequency of the primary SFQ pulses. The error correction system (70) corrects the digital output signal based on the analog input signal and the primary SFQ pulses. Using the primary SFQ pulses to correct the digital output signal allows the converter (10) to take into account the non-linearities of the primary quantizer (30).