Abstract: The present disclosure relates to a crossconnect module that comprises a housing adapted for mounting within a crossconnect panel. In an example embodiment, the module includes first and second transmitting connectors connected to each other with a first transmission path and first and second receiving connectors connected to each other with a second transmission path. Further included is a monitoring connector, a signal splitter disposed within the housing along one of the first and second transmission paths, and a third transmission path extending from the signal splitter to the monitoring connector. In use, a portion of a signal transmitted along one of the first and second transmission paths is diverted by the signal splitter to the third transmission path so that the diverted portion of the signal can be monitored via the monitoring connector.

Abstract: A system for routing data packets in a packet network. Packets are classified as either type-1 or type-2. Each type is routed to its destination on a smallest-delay path. However, each type can experience a different time delay between nodes in the network. Thus, the smallest-delay path for a type-1 packet may be different from that for a type-2 packet, even if the origin and destination of both types are the same. Further, these time delays can change. The invention monitors the changes, and continually identifies the smallest-delay paths for the packets.

Abstract: A saturable Bragg reflector for use in mode locking a laser comprises a stack alternately of layers of a high index of refraction and layers of a low index of refraction. The layers of high index all have optical thicknesses of about one quarter the operating wavelength of the laser. The layers of low index, except for the pair of uppermost layers, have optical thicknesses of a quarter the operating wavelength but that pair have a thickness of about one eighth of a wavelength. A quantum well is located near the center of the layer of high index between the pair of one eighth wavelength. Such a reflector is used as one end of a resonant cavity that houses a gain medium.

Abstract: In accordance with the invention, an optical all-pass filter comprises a substrate-supported multilayer waveguiding structure comprising a first layer including a waveguiding optical ring resonator, a second layer including an optical grating optically coupled to the ring resonator, and a third layer including a relatively straight waveguide optically coupled to the grating. The waveguide can be made with standard index material matched to an optical communication system, and the ring can be made of higher index material. The grating sandwiched between them provides phase matching between these two index mismatched structures, facilitating efficient power transfer between them.

Abstract: A method for estimating and read durations, in response to requests to read data blocks stored in the disk drives in a computer system having a plurality of disk drives. Each disk drive has a disk cache with a non-zero fence parameter value coupled to a host computer via a common bus. The method according to one embodiment, comprises the steps of: (a) measuring an overhead period corresponding to the time during which a request to read is transmitted to a disk drive via the bus; (b) measuring an expected minimum positioning time corresponding to the shortest time required for a disk drive to locate said data block; (c) measuring mechanism-to-cache read time corresponding to the time required for a disk drive to transfer a data portion BC to a disk cache; (d) measuring the time required to transfer data blocks stored in each of said disk caches to the host; and (e) adding the times measured at steps (a) through (d).

Abstract: Disclosed is a system and method for modulating and demodulating a data signal. The system includes a number of configurable multi-rate signal processing modules coupled to a local interface. The system also includes a control module coupled to the local interface, the control module being adapted to shuttle a number of data symbols among the configurable multi-rate processing modules according to a predefined modulation or demodulation scheme. The system can advantageously be configured to perform one of multiple modulation or demodulation schemes.

Abstract: A holding apparatus including a fixture is described. The fixture of the holding apparatus, which receives a semiconductor laser bar for optical coating, includes a base and a pair of walls. The walls and the base have inner surfaces, and the walls have a top surface upon which the laser bar rests. An extending portion of the semiconductor laser bar fits in a cavity formed by the base and the walls. The facet edges of the laser bar do not extend horizontally beyond the walls of the fixture. A coating apparatus applies a coating to the facet edges of the laser bar without contacting any coating material on the extending portion.

Abstract: An assembly includes a temperature sensor having an operating range that includes a normal operating temperature of a cryogenic vacuum pump and a temperature of the pump following a dump. The assembly may be included in a semiconductor processing apparatus for performing an implant operation on a wafer. The apparatus includes: a chamber containing a wafer; an ion source that provides ions to be implanted in the wafer; a cryogenic vacuum pump that maintains a vacuum in the chamber; and a temperature sensor having an operating range that includes a normal operating temperature of the pump and a temperature of the pump following a dump. A circular mounting bracket may be used to mount the temperature sensor on an exterior surface of the pump. An alarm may be activated when the sensed temperature indicates that a dump condition exists. An inert gas, such as nitrogen, may be introduced into the semiconductor wafer processing apparatus when the sensed temperature indicates that a dump condition exists.

Abstract: In a telephone network, different telephones are connected to a telephone line in a parallel manner. When two or more of the telephones are in use and conduct electricity, known as an “off-hook” condition, they are oftentimes provided with varying amounts of loop current from the telephone line to drive their telephone circuitry. To balance the respective loop current supplies to the off-hook telephones, at least one inventive balancing network is used and connected to one of the off-hook telephones which has the least operating resistance, with respect to all other off-hook telephones.

Abstract: In a communication arrangement including a multiplicity of intranets, objects available on the Internet are requested. A requested object in an intranet is attended by a proxy server therein, which attempts to locate a copy of the requested object in a proxy cache. The latter stores copies of objects previously obtained by web browsers in the intranet, and affords priority to copies of those objects from selected Internet sites. If the proxy server does not manage to locate a copy of the requested object or determines that a located copy is outdated, the proxy server seeks cooperation from other proxy servers to further search for the object. These cooperating proxy servers are dynamically identified by a manager processor in accordance with the invention. In addition, the manager processor prefetches selected objects from the Internet in anticipation of the object request. The manager processor also helps search the prefetched objects for the requested object.

Abstract: A system and apparatus are disclosed for identifying polysemous terms and for measuring their degree of polysemy. A polysemy index provides a quantitative measure of how polysemous a word is. A list of words can be ranked by their polysemy indices, with the most polysemous words appearing at the top of the list. A polysemy evaluation process collects a set of terms near a target term. Inter-term distances of the set of terms occurring near the target term are computed and the multi-dimensional distance space is reduced to two dimensions. The two dimensional representation is converted into radial coordinates. Isotonic/antitonic regression techniques are used to compute the degree to which the distribution deviates from unimodality. The amount of deviation is the polysemy index. A corpus can be preprocessed using the polysemy indices to identify words having clearly separated senses, allowing an information retrieval system to return a separate list of documents for each sense of a word.

Abstract: The present invention is directed to a fuse bypass module that may be used with a corresponding fuse panel. The fuse bypass module may be used with a primary fuse receptacle, located on the fuse panel. The primary fuse receptacle has terminals coupled to a power source and a load, respectively. In one embodiment, the a fuse bypass module may be used with a primary fuse receptacle having terminals coupled to a power source and a load, respectively. In a particularly advantageous embodiment, the fuse bypass module comprises a housing that has a bypass fuse receptacle for receiving a bypass fuse. Additionally, the fuse bypass module includes an electrical connector on the housing that is electrically coupled to the bypass fuse and that is removably couplable to a fuse panel electrical connector, which is associated with the bypass fuse panel.

Abstract: To manufacture an elbow comprising an internal tunnel formed by two rectilinear sections that meet in defining a dihedron on the internal side of the change in direction and, on the opposite side, a stepped transition face, the disclosed method consists of the making, by machining in one block, from two connection faces, of two rectangular boreholes that meet so that, at their meeting place, they define said dihedron on the internal side of the change in direction and said stepped transition face on the external side of the change in direction.

Abstract: A wideband CDMA transmission system is disclosed that incorporates transmit diversity in both frequency and space. Some embodiments of the present invention are capable of transmitting a wideband signal with a high data rate to an appropriately-designed wideband CDMA wireless terminal and are also capable of transmitting a narrowband (e.g, IS-95 compliant) signal to a CDMA wireless terminal in the prior art. Some embodiments of the present invention are capable of co-existing in the same frequency spectrum that is allocated to existing narrowband wireless systems. And in some embodiments of the present invention the coded symbols from the interleaver are distributed among multiple carriers that are then radiated by spatially separated antennas.

Abstract: A device, system and method for locating a specific optical connection port contained within a fiber administration system having line tracing capabilities. A translucent casing is provided at each of the optical connection ports in the fiber administration system. The translucent casing can be a translucent shroud that fits over a standard optical connection port or the translucent casing can be manufactured as part of the optical connector port. Regardless of the type of translucent casing used, the translucent casing of any of the optical connection ports can be individually and selectively illuminated. According, the actual casing of an optical connection port can be illuminated within a fiber distribution shelf, thereby greatly increasing the ability of a technician to accurately locate the targeted optical connection port within the fiber administration system.

Abstract: The present invention provides a cordless telephone having the ability to operate when power fails to the base unit. In a first embodiment, the handset includes a switch and a telephone line interface to connect a speaker and microphone directly to the public switched telephone network (PSTN) bypassing the base unit and allowing corded telephone operability of the handset of the cordless telephone. In a second embodiment the handset provides power to the base unit in the event of an AC power failure to the base unit. In this corded mode, the battery of the handset provides auxiliary power to the base unit. To further reduce power consumption and increase operation time of the battery in the handset, the RF transceivers of the base unit and handset can be unpowered by the provided direct serial connection between serial interfaces of the base unit and handset. In both embodiments, the cordless telephone operates in conventional fashion when in a wireless mode.

Abstract: For a world that has a portion of the world distant from the point of view of the user represented in only two dimensions as a video on a video screen, when an object on the video screen undergoes a trajectory that takes at least a portion of it to a location in the world that is not represented by the video but instead is a location in the world that is represented by computer graphics, in addition to being able to continue to see such an object when it is rendered as computer graphics in the computer graphics part of the world, i.e., popped out from the video, one is able to interact with such an object. Thus, an object which pops out from a video into the computer graphics part of the world may be “investigated” by a viewer of the world. For example, the user could enter a store which popped out of the video, and engage in virtual shopping therein. The particular store which is actually entered may be customized on a per user basis, e.g., as a function of geography.

Abstract: A method for reducing skew in a common signal as applied to individual elements in the design phase. In accordance with the principles of the present invention, the design of the wiring is established and augmented with compensation elements and/or delay elements as necessary to equalize the skew as between all relevant components. In the disclosed embodiment, the method generally comprises three general steps: (1) grouping loads on the common signal; (2) creating a signal wiring tree and inserting delay cells; and (3) providing necessary loading compensation. The loads are grouped such that each utilized node on a central wiring experiences substantially equal loading, with compensating loads added as necessary. The nodes are established at intervals corresponding to the availability of delay elements, which are added to the branches feeding the farthest elements as necessary to equate the time delay of each node with respect to the source of the common signal.

Abstract: A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen occurs when a computer graphic object represented by computer graphics, e.g., in front of, to the side, above, or below the video screen, undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, because such an object would disappear from view by the viewer. This limitation is overcome by having by determining when a computer graphic object undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, and representing such an object as computer graphics in front of the screen to which at least one perspective transformation is applied, the perspective transformation being at least a function of the position at which the object is actually located.

Abstract: A method for nondestructively and accurately determining the stress of a fabricated semiconductor chip soldered, brazed or otherwise bonded to a submount using optical microscopy and finite element analysis. Deformations on a top surface of the semiconductor chip are first examined using optical microscopy. The deformations are then correlated using finite element analysis to the stress on the semiconductor chip caused by the soldering process. If the stress is determined to be within an acceptable range of measurement, then the semiconductor chip will have been properly soldered to the submount and can be used.