Abstract: A gearbox support apparatus includes: a gearbox carrier having a central axis, the carrier configured to mount one or more rotating gears therein, the carrier including spaced-apart forward and aft walls, and a flexible center plate structure disposed between the forward and aft walls, an annular support ring disposed axially adjacent to the carrier; and a plurality of axially-extending torque fingers interconnecting the mounting ring and the center plate structure.

Abstract: A flexible HVAC duct is made with a support structure-containing duct liner, insulation layer, and reinforcing layer-containing vapor barrier. At least the duct liner and vapor barrier are constructed of polymer materials that enable them to be placed in the same recycling stream once the flexible HVAC duct is removed from its installed location. The insulation layer can also be made of a polymer material compatible with that used for the duct liner and vapor barrier so that the entire duct can be recycled once removed.

Abstract: A HVAC branch line includes a boot, flexible duct, and integral connection therebetween. The boot can be configured to pre-hold fasteners to facilitate field installation. The branch line can also include one or more straps or other another structure, which are used to support the branch line, and optionally compress the duct before, during or after installation. Since the duct and boot are integrally connected, a field connection between the two is unnecessary and the duct can be easily supported during installation of the branch line.

Abstract: A flexible HVAC duct is made with a support structure-containing duct liner, insulation layer, and reinforcing layer-containing vapor barrier. At least the duct liner and vapor barrier are constructed of polymer materials that enable them to be placed in the same recycling stream once the flexible HVAC duct is removed from its installed location. The insulation layer can also be made of a polymer material compatible with that used for the duct liner and vapor barrier so that the entire duct can be recycled once removed.

Abstract: Embodiments of the present invention relate to circuits to be inserted in a signal path between a signal generator and a test port of a vector network analyzer (VNA), where the circuits enable the VNA to make scattering parameter measurements for a load (RL) connected to the test port when the signal generator generates signals having frequencies that are below a low frequency limit (e.g., 2 MHz) of an actual dual directional coupler of the VNA. Embodiments of the present invention are also directed to a VNA that includes such circuits.

Abstract: Embodiments of the present invention relate to circuits to be inserted in a signal path between a signal generator and a test port of a vector network analyzer (VNA), where the circuits enable the VNA to make scattering parameter measurements for a load (RL) connected to the test port when the signal generator generates signals having frequencies that are below a low frequency limit (e.g., 2 MHz) of an actual dual directional coupler of the VNA. Embodiments of the present invention are also directed to a VNA that includes such circuits.

Abstract: Techniques for automatically monitoring a computer network and notifying an attendant upon detection of problems are described. A system for monitoring the computer network comprises a monitoring server connected to the network and operative to communicate with a plurality of monitored servers belonging to the network and a monitor program hosted on the monitor server and operative to test the performance and correct functioning of selected ones of the monitored servers and the presence or absence of problems related to applications running on the monitored servers.

Abstract: Systems and techniques for data management and routing. Associated collections of information comprising data and associated documents are received, with the documents in each grouping of information being able to be received in one of a variety of formats. Each collection of information that is received is assembled into an information package, and the data and documents in each information package are further assembled into a transfer package in a standardized format for processing. Each document is translated into a standardized format with the standardized format being independent of the format in which the document is received.

Abstract: Techniques for monitoring of storage usage and trends in a document image processing and storage system are described. A storage and retrieval monitor resides on a storage server and monitors the status of volumes and units on which data is stored, completed storage requests and pending storage and retrieval requests. The storage and retrieval monitor analyzes completed and pending storage requests in order to project usage trends over time, and also analyzes the storage status in order to determine the used and available space and the space dedicated to various units and classes of data such as documents and families of documents. The storage and retrieval monitor generates alerts when the available storage space falls below a predetermined limit. The alerts and the usage and status information are presented to a user through a user interface allowing easy access to the storage and usage information and the ability to select desired information for display.

Abstract: Circuitry is provided to drive a step recovery diode (SRD) (8) in a sampler based vector network analyzer (VNA) that allows harmonic samplers (10, 11) to operate over many octaves. The circuit includes a digital pulse generator (FIG. 5) for providing a LO signal. The LO signal is provided over an octave frequency range as in previous SRD driver circuits, but pulse forming circuitry is provided to decrease the pulse rate to a sub multiple of the LO generating oscillator signal. The pulse forming circuitry includes a programmable frequency divider (50) to vary the pulse rate. The pulse forming network further includes registers (50, 52) connected to the programmable frequency divider (50) to limit the pulse width resulting in reduced heating of the SRDs. With an effectively wider frequency operation range using the SRD (8), only one downconversion is required in the VNA, eliminating the need for additional mixers (30, 31) and a second LO signal generator (24) to provide a second downconversion.

Abstract: A method and apparatus are used to calibration a Vector Network Analyzer (VNA). The method includes providing a calibration module with a single port, providing within the calibration module a set of reflecting components with known scattering parameters, providing control signals to the calibration module through the single port, providing the known scattering parameters to the VNA through the single port, coupling one of reflecting components to the VNA, measuring scattering parameters, and comparing the measured scattering parameters with the known scattering parameters. The apparatus includes a calibration module and a controller module. In one embodiment, the calibration module includes a set of reflecting components, a memory that stores the characterization data, and a current source which sends characterization data in the form of current pulses to the controller module. The controller module includes a voltage source that generates the control signals used by the calibration module.

Abstract: Techniques for managing work objects are described. These techniques include presenting an interface to a user allowing user specification of a category of work objects. The interface also allows user identification of one or more operations to be performed on the category of work objects. The operations may include searching for and unlocking groups of work objects, searching for and unlocking individual work objects, searching for and editing individual work objects and searching for and performing specified operations on categories of work objects comprising multiple work objects. Upon specification of the category of work objects and identification of the operations, the specified operations are performed on work objects included within the specified category.

Abstract: A spectrum analyzer is combined with the VNA in a housing measuring approximately 4 pounds with the spectrum analyzer portion operating from slightly above DC to above 3.0 GHz. The components for the spectrum analyzer are provided on a separate printed circuit board from the two printed circuit boards for the display and VNA components in the housing. The design of components for the printed circuit board enable a significant reduction of size from a typical spectrum analyzer which weighs 40 pounds or more and measures on the order of 2 feet by 3 feet by 0.5 feet.

Abstract: A photovoltaic mounting apparatus for use with a solar panel includes a base element having an elongated upper portion and a lower portion. The upper portion is structured for engagement with a rooftop by being positioning underneath the shingles of a rooftop and secured thereto through the apertures of the upper portion and/or lower portion of the base element. One or more support elements extend perpendicularly from the lower portion of the base element. A front plate is situated upon the support elements and is parallel to the base element and structured for engagement with the solar panel.

Abstract: Techniques for monitoring of storage usage and trends in a document image processing and storage system are described. A storage and retrieval monitor resides on a storage server and monitors the status of volumes and units on which data is stored, completed storage requests and pending storage and retrieval requests. The storage and retrieval monitor analyzes completed and pending storage requests in order to project usage trends over time, and also analyzes the storage status in order to determine the used and available space and the space dedicated to various units and classes of data such as documents and families of documents. The storage and retrieval monitor generates alerts when the available storage space falls below a predetermined limit. The alerts and the usage and status information are presented to a user through a user interface allowing easy access to the storage and usage information and the ability to select desired information for display.

Abstract: An automotive radar test system includes circuitry for multiple down and up conversions of a signal from the automotive radar. Conditioning circuitry delays an intermediate frequency signal (IF2) obtained after a second down conversion to simulate the delay of a return signal from an object located a particular distance from the automotive radar, and to attenuate the IF2 signal to simulate variable target sizes, and to generate a Doppler shift in the IF2 signal to simulate target speed. The conditioned signal is up-converted and transmitted back to the automotive radar system to determine if the automotive radar provides accurate readings for distance, size and speed. The radar test system further couples the second IF signal to a spectrum analyzer to determine if the automotive radar is operating in the desired bandwidth and to a power meter to determine if the automotive radar is transmitting at a desired power level.

Abstract: A radar test system for testing the performance of an automotive radar system includes circuitry for multiple down and up conversions of a signal from the automotive radar. Conditioning circuitry is further included to delay an intermediate frequency signal (IF2) obtained after the second down conversion to simulate the delay of a return signal from an object located a particular distance from the automotive radar system, and to attenuate the IF2 signal to simulate variable target sizes, and to generate a Doppler shift in the IF2 signal to simulate target speed. The conditioned signal is up-converted and transmitted back to the automotive radar system to determine if the automotive radar provides accurate readings for distance, size and speed.

Abstract: Techniques for automatically monitoring a computer network and notifying an attendant upon detection of problems are described. A system for monitoring the computer network comprises a monitoring server connected to the network and operative to communicate with a plurality of monitored servers belonging to the network and a monitor program hosted on the monitor server and operative to test the performance and correct functioning of selected ones of the monitored servers and the presence or absence of problems related to applications running on the monitored servers.

Abstract: Techniques for managing work objects are described. These techniques include presenting an interface to a user allowing user specification of a category of work objects. The interface also allows user identification of one or more operations to be performed on the category of work objects. The operations may include searching for and unlocking groups of work objects, searching for and unlocking individual work objects, searching for and editing individual work objects and searching for and performing specified operations on categories of work objects comprising multiple work objects. Upon specification of the category of work objects and identification of the operations, the specified operations are performed on work objects included within the specified category.

Abstract: A photovoltaic mounting apparatus for use with a solar panel includes a base element having an elongated upper portion and a lower portion. The upper portion is structured for engagement with a rooftop by being positioning underneath the shingles of a rooftop and secured thereto through the apertures of the upper portion and/or lower portion of the base element. One or more support elements extend perpendicularly from the lower portion of the base element. A front plate is situated upon the support elements and is parallel to the base element and structured for engagement with the solar panel.