Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: A system is provided, for use in “cross-eye” ECM systems, and in other application, by means of which two radio-frequency signals having a specific temporal relationship can be amplified in the same amplifier, and without significantly affecting their temporal relationship. One signal is stored in a first delay line and the second is stored in a second delay line of larger capacity. The first signal upon emerging from the first delay line is sent to the second delay line behind the second signal. Upon emerging from the second delay line, after the first signal has completely entered the second delay line, the second signal is amplified in an amplification device and sent to the first delay line. It thus emerges from the first delay line at the same time as the first signal emerges from the amplifier, or the two emerge from the first delay line and the amplifier, in their original temporal relationship.

Abstract: A radar receiver is shown wherein the frequency of a first local oscillator is changed to bring an intermediate frequency signal representative of a moving target into frequency coincidence with a signal from a reference oscillator of fixed frequency.

Abstract: A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.

Abstract: A carrier pocket engineering technique used to provide superlattice structures having relatively high values of the three-dimensional thermoelectric figure of merit (Z3DT) is described. Also described are several superlattice systems provided in acordance with the carrier pocket engineering technique. Superlattice structures designed in accordance with this technique include a plurality of alternating layers of at least two different semiconductor materials. First ones of the layers correspond to barrier layers and second ones of the layers correspond to well layers but barrier layers can also work as well layers for some certain carrier pockets and vice-versa. Each of the well layers are provided having quantum well states formed from carrier pockets at various high symmetry points in the Brillouin zone of the structure to provide the superlattice having a relatively high three-dimensional thermoelectric figure of merit.

Abstract: A data storage system having a plurality of disk drives. Each one has a pair of ports. A pair of directors controls the flow of data to and from the disk drives. A first fiber channel port by-pass selector section is provided. The first fiber channel selector section includes: an input/output port coupled to a first one of the directors; and, a plurality of output/input ports connected between a first one of the ports of the plurality of disk drives through a first plurality of fiber channel links. The first fiber channel port by-pass selector section is adapted to couple the first one of the directors serially to one, or ones, of the first ports of the plurality of disk drives through a first fiber channel selectively in accordance with a control signal fed to the first fiber channel by-pass selector section. The first fiber channel includes one, or more, of the first plurality of fiber channel links.

Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: A radiator includes a waveguide having an aperture and a patch antenna disposed in the aperture. In one embodiment, an antenna includes an array of waveguide antenna elements, each element having a cavity, and an array of patch antenna elements including an upper patch element and a lower patch element disposed in the cavity.

Abstract: A microstrip to circular waveguide transition having an elongated circular waveguide portion and a stripline circuit portion disposed within the waveguide portion. The stripline includes a strip conductor disposed in a strip conductor plane. The strip conductor extends along a longitudinal axis of the circular waveguide portion from a first region of the transition to a longitudinally spaced second region of the transition. The stripline circuit portion includes a pair of overlying ground planes extending along the longitudinal axis from the first region to the second region, such pair of ground planes being disposed in overlying planes parallel to the strip conductor plane.

Abstract: An automated optical inspection (AOI) system includes component learning integrated with the inspection of a circuit board. The AOI system includes a component learning area that can be viewed by an imaging system used to inspect the circuit board in an inspection area. The component learning area can correspond to a region proximate the inspection area. The automated optical inspection system receives board inspection and component learn requests and determines opportune times to learn new component characteristics during the board inspection process so as to minimize the impact of the learning process on the overall inspection efficiency.

Abstract: A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a magnet, and hence a magnetic field, to the Hall effect sensor regardless of the orientation of the magnet to the Hall effect sensor.

Abstract: A keyboard wrist support including a platform adapted for being in a first, deployed position adjacent to the keyboard or a second, storage position in a plane below the keyboard. The wrist support further includes a pair of elongated support brackets, each having a first portion coupled to the platform and a second portion movably attached to a base. The wrist support provides the additional benefits of counterbalancing the weight of the computer display when the wrist support is used with a portable computer and providing leverage to the user for stabilization. The platform is pivotable with respect to the support brackets in order to permit the platform to be angled relative to the keyboard for optimum comfort and the base is slidable with respect to the support brackets in order to reduce the footprint of the support when the keyboard is not in use. Also described are embodiments in which the platform is slidable with respect to the keyboard.

Abstract: A transistor structure is provided. This structure has a source electrode and a drain electrode. A doped cap layer of GaxIn1−xAs is disposed below the source electrode and the drain electrode and provides a cap layer opening. An undoped resistive layer of GaxIn1−xAs is disposed below the cap layer and defines a resistive layer opening in registration with the cap layer opening and having a first width. A Schottky layer of AlyIn1−yAs is disposed below the resistive layer. An undoped channel layer is disposed below the Schottky layer. A semi-insulating substrate is disposed below the channel layer. A top surface of the Schottky layer beneath the resistive layer opening provides a recess having a second width smaller than the first width. A gate electrode is in contact with a bottom surface of the recess provided by the Schottky layer.

Abstract: An apparatus to measure leg drive of a pitcher as the pitcher as delivering a pitch is presented. The device comprises a pressure gauge integrated into a pitching rubber to provide a pressure profile of the leg drive utilized by the pitcher during delivery of a pitch. This device would be useful in evaluating pitchers, in determining if a pitcher has recovered from injury, to determine if a pitcher is tiring during a game, and to provide a general indication of the pitchers ability to throw hard. The device could also be used a training device, and used to coach pitchers into developing a strong leg drive. The device may further be used in conjunction with additional sensors to determine the turnover ratio of a pitcher, the time from when the front foot hits the front of the mound to when the back foot comes off the pitching rubber.

Abstract: A data storage system wherein a host computer is coupled to a bank of disk drives through a system interface. The interface includes a plurality of directors and a memory interconnected by a plurality of busses for controlling data transfer between the host computer and the bank of disk drives as such data passes through the memory. A front-end portion of the directors is coupled to the host computer through front-end input/output adapters. Each one of the front-end directors includes a fiber channel hub. The hub is configured to provide a selected one of a plurality of fiber channel loops between one of the front-end directors and a selected one, or more, of a plurality of host computer sections. The fiber channel hub includes a plurality of transceivers each one being adapted to communicate with a corresponding one of the plurality of host computer sections. A plurality of multiplexer sections is coupled to a said one of the directors through a configurable fiber channel loop.

Abstract: A planar circulator assembly includes a dielectric substrate having a first surface and an opposing second surface, a plurality of circulator circuits, each circulator circuit having a first ferrite receiving pad disposed on the first surface and a second ferrite receiving pad; disposed on the second surface a first sub-assembly board disposed on the first surface having a plurality of first apertures, a plurality of ferrite-magnet sub-assemblies, each ferrite-magnet sub-assembly disposed in a corresponding first aperture and aligned with a corresponding first ferrite receiving pad and electromagnetically coupled to the corresponding first ferrite receiving pad.

Abstract: A system is provided for detecting blockage of an automotive side object detection system (“SODS”). The system includes a blockage detection processor, which is operative to determine whether an RF leakage signal level sensed between transmit and receive antennas of the system substantially match one or more of a plurality of pattern recognition information curves. If it is determined that the leakage signal level substantially matches one or more of a plurality of pattern recognition information curves, a blocked condition of the SODS is declared, as may be caused by mud, salt, ice, etc. The blockage detection processor is further operative to determine whether the leakage signal exceeds a predetermined blockage threshold level. If the leakage exceeds the predetermined blockage threshold level, a blocked condition of the SODS is also declared.

Abstract: A mechanism for adjusting seek activity in a data storage system of physical devices having mirrored logical volumes is presented. Statistics describing at least reading data from the mirrored volumes during successive time periods are collected. From the collected statistics an activity level associated with each of the mirrored logical volumes is determined. Seek activity values for the physical devices are computed based on the activity levels associated with the logical volumes stored on each of the physical devices. The computed seek activity values relate a physical device seek activity to the activity level associated with, and distance between, the mirrored logical volumes residing the physical devices. The computed seek values are used to minimize seek activity for non-mirrored ones of the physical devices.

Abstract: A system interface includes a plurality of first directors, a plurality of second directors, a data transfer section and a message network. The data transfer section includes a cache memory. The cache memory is coupled to the plurality of first and second directors. The messaging network operates independently of the data transfer section and such network is coupled to the plurality of first directors and the plurality of second directors. The first and second directors control data transfer between the first directors and the second directors in response to messages passing between the first directors and the second directors through the messaging network to facilitate data transfer between first directors and the second directors. The data passes through the cache memory in the data transfer section. A method for operating a data storage system adapted to transfer data between a host computer/server and a bank of disk drives.