Abstract: An integrated circuit memory array has a plurality of rows of memory cells, each row of memory cells being coupled to a respective row line for enabling the memory cells of the row. A row driver of the memory array provides a row voltage on the row line. A pull-up transistor of the row driver pulls up the row voltage in response to a row control signal. A parasitic diode of the pull-up transistor is coupled at its anode to the row line and is adapted to pull the row voltage down from a high state voltage to a diode drop voltage plus a low state voltage in response an enable block signal coupled to the cathode of the parasitic diode. A pull-down transistor of the row driver also pulls down the row voltage in response to the row control signal.

Abstract: An adjustment fixture for aligning pins on a protector panel to facilitate insertion of a printed wiring board thereon. The adjustment fixture includes an alignment comb having a plurality of substantially parallel beams, each having a thickness. The comb is placed between rows or columns of pins on the protector panel to straighten and impede unintended displacement or movement of the pins. A beam receptacle brace is provided for attachment to an end of the beams so as to maintain the beams in an appropriate fixed spacing so that the printed wiring board can be mounted to the pins.

Abstract: This invention is predicated on applicants' discovery that one can design long-period gratings having a center wavelength versus A characteristic which changes polarity of slope near a wavelength of interest. Such a grating can be chirped to exhibit a wider bandwidth than chirped conventional gratings, e.g. 100 nm as compared to 20 nm. The new wide bandwidth gratings are highly useful in optical communications systems for dispersion compensation and for compensation of spectrally dependent optical amplifiers.

Abstract: The dynamic test unit presents the operator with a dynamically changing visual representation of the voice terminal under test and its present state. This visual representation provides the operator with an enhanced visual comparison of voice terminal under test with the virtual representation to verify both the type of voice terminal under test and its present state. By providing a visual representation of the voice terminal under test, only minimal operator training is required and the test facility interface is made language independent. The dynamic test unit can also display visual images of the signals that are applied to the voice terminal under test and the signals received therefrom to enable the operator of the test facility to precisely analyze the operation of the voice terminal under test.

Abstract: For use with a communication station having a database containing past communication event information pertaining to the station, systems for, and methods of, predicting a future communication event pertaining to the station. In one embodiment, the system includes: (1) correlating logic that analyzes the past communication event information to determine whether a correlation exists in the past communication event information and (2) predicting logic, coupled to the correlating logic, that examines a current communication event pertaining to the station and predicts the future communication event based on the current communication event and the correlation.

Abstract: A radio communication system includes an Interrogator for generating and transmitting a radio signal. One or more Tags contained within the radio communication system receive the radio signal. A Backscatter Modulator modulates the reflection of the radio signal using a subcarrier signal, thereby forming a reflected modulated signal. The Interrogator receives and demodulates the reflected modulated signal. Based upon the characteristics of the demodulated signal, the Interrogator can determine the identity of the Tag, and the relative velocity of the Tag with respect to the Interrogator. The Interrogator can also determine if motion exists in the vicinity of the Interrogator, even when no Tag is present, without the need for a separate motion detection system. The characteristics of the demodulated signal, can also be used to determine the characteristics of motion of the Tag, such as the vibrational frequency.

Abstract: Methods and apparata for electronic labeling and localizing an end point and for determining the distance between an interrogator and the end point. In one embodiment, a system is provided that includes an interrogator that transmits an identification code signal that includes a representation of the identification code of the end point to be localized. The interrogator also receives a tag response signal that is transmitted from a tag associated with the end point. The tag transmits the tag response signal upon receiving the identification code signal and confirming that the identification code signal includes a representation of the identification code. The system also includes a localizer, which is hardware, software, or both, that determines the distance between the end point and the interrogator based on the identification code signal and the tag response signal.

Abstract: An electronics cabinet assembly having a support shelf and an equipment module movably supported thereon. The equipment module is moveable between a closed position adjacent the rear of the support shelf, and an extended position substantially forward relative of the support shelf where the equipment module is hingably supported on the support shelf such that the front of the equipment module can tilt downwards to expose the rear of the equipment module for easy access to the wire and cable connectors.

Abstract: The present invention is a user process that resides in network nodes to act as an agent for mobile terminals in, for example, PCS environments. The user process handles negotiation and complex signaling functions for the user, thus reducing the amount of signaling traffic that must travel over the valuable air interface. To achieve low call establishment times the user process is migrated as user move. Three embodiment is adapted to enable data sizes which are to be transferred to be optimized, leading to low overhead. This approach also provides flexibility when migrating across heterogeneous environments. A second alternative embodiment may be advantageously utilized when a program is compute intensive and asynchronous migration is essential. The third embodiment provides high reliability in the form of checkpointing, but incurs a high migration delay and has high memory requirement for network processors.

Abstract: A network element with a centralized switch fabric is able to support multiple switching functions while meeting established performance requirements by using a control system based on an embedded signal status protocol. Generally, each input signal within a transmission path is monitored to derive signal status information, which is then individually encoded and embedded within the input signal. The embedded signal status can be decoded and provided as input to control logic for processing at any point within the transmission path, as necessary. In the case of a centralized switch fabric, the control logic resolves an address of a single input signal based on the embedded signal status and provides this resolved address to the switch fabric so that the appropriate input signal can be selected. In the present invention, the control logic may be configured to support any given application, e.g.

Abstract: Embodiments of the invention include a method and apparatus for modulating data retrieved from page-wise memory systems such as holographic memory systems. The inventive method uses the detection of one or more test signals included within stored data image pages to estimate the behavior of the retrieved data image pages and to normalize the retrieved information accordingly. The method includes allocating a portion of the data image pages of interest for one or more determinable test signals and incorporating the test signal information into the data image pages prior to storage of the data image pages within the storage medium. Upon retrieval of the data image pages from the storage medium, the test signals are detected and used to form the basis of estimated data member behavior across individual data image pages and, alternatively, from one data image page to another. Based on the estimated behavior, appropriate normalization is performed on the data image pages.

Abstract: A retractable weather shield for protecting an outdoor structure from the elements, the weather shield having a base panel; a mounting bracket for mounting the structure to a substrate; the base panel being slidably mounted to the mounting bracket; the mounting bracket having a storage space for storing the base panel in a substantially vertical stored position between the substrate and the structure; the mounting bracket having a guide channel for engaging a corresponding guide member on the base panel and guiding said base panel between the stored position and a substantially horizontal deployed position above the structure for protecting the structure from the elements when in the deployed position; and wherein the shield may further have a telescoping panel being slidably mounted and supported within the base panel, the telescoping panel being stored within the base panel when in a stored position and extending substantially outside the base panel when in a deployed position.

Abstract: A building entrance box providing an interface between a signal transmission media cable having a first plurality of filamentary signal transmission elements and a second plurality of individual filamentary signal transmission elements. In a first embodiment, moisture infiltration is reduced by providing potting material in a transition region between a splice chamber of the box and a connector chamber of the box. In another embodiment, a plastic protector panel is specifically shaped to reduce condensation and to reduce the effects of any condensation. Modular protector panels mounted in the box are automatically grounded when mounted to a conductive chassis plate and are so arranged that input and output wires are isolated from each other.

Abstract: A fire suppression system for a process station, or chemical wet bench, employs an electro-optical fire detector and system controller to detect a fire in the process station. The system controller is coupled to a solenoid valve that is opened when a fire is detected by the fire detector, causing the fire suppressant to be delivered to a nozzle positioned in the process station. The nozzle atomizes the fire suppressant flowing through the nozzle so as to substantially cover the interior space of the process station with fire suppressant. The fire suppressant may be water provided by a local sprinkler system, and the nozzle is configured to atomize the fire suppressant when the fire suppressant is delivered to the nozzle under relatively low pressure.

Abstract: A selectable compatibility jack has at least a partially hollow housing member or jack frame and a plurality of spring contact members or leads extending from the rear portion thereof to the connector end. The housing has a front face with an opening therein configured to receive a plug. A circuit member, such as a printed wiring board is mounted and affixed within the housing and has circuit components on a surface thereof. Actuator means responds to the insertion of a low performance plug into the jack to cause the leads to contact certain ones of the circuit elements, such as capacitance pads, to alter the crosstalk and transmission loss characteristics of the jack. Clearance means within the jack prevent the actuator means from being actuated when a high performance plug is inserted in the jack.

Abstract: The present invention relates to a variable power-attenuation circuit whose attenuation is controlled electronically by a control voltage (Vc). This circuit includes resistive elements (R20, R21, D20, D21) of which at least two resistive elements are diodes (D20, D21), and a biasing device intended to set the direct current passing through the diodes. This circuit is characterized in that the biasing device includes means for independently setting the characteristic impedance of the circuit, the size of the dynamic range of the control voltage (Vc) and the position of the said dynamic range.Application to the production of transmission devices for directional radio.

Abstract: A digital-to-analog converter (DAC) and a method of converting digital numbers to analog equivalents. In one embodiment, the DAC includes: (1) a data decoder that receives a digital number and an input clock signal and develops therefrom SIGN and M control signals and complementary .phi..sub.1 and .phi..sub.2 clock signals and (2) a conversion circuit, coupled to the data decoder and including first and second operational amplifiers (op amps), a switching circuit and sampling and integrating capacitors, the switching circuit coupling positive and negative reference voltages to the sampling capacitors as a function of states of the SIGN and M control signals and adjusting feedback loops associated with the first and second op amps as a function of states of the .phi..sub.1 and .phi..sub.2 clock signals, the first and second op amps generating a voltage difference at outputs thereof representing an analog equivalent of the digital number.

Abstract: An improved PIN photodiode provides enhanced linearity by confining the light absorption region of the diode wholly within the depletion region. The photodiode exhibits improved linearity over prior art designs because the thickness of the absorption region is no longer a function of changes in the size of the depletion region during device operation. Keeping the absorption region wholly within the depletion region ensures that the charge carriers generated by incident illumination will increase the conductivity of the semiconductor material.

Abstract: The invention is a sol-gel extrusion process which allows fabrication of both thick and thin wall tubes. For example, the process is capable of preparing silica overcladding tubes in a manner easier than sol-gel casting processes, and also capable of preparing relatively thin substrate tubes, which are difficult to cast. According to the invention, a silica dispersion containing a stabilizing agent is provided, a gelling agent is added to the dispersion to induce gellation, and the resultant gel is extruded into a silica body, in the substantial absence of polymeric material from the gel. Substantially avoiding the inclusion of such polymeric material in overcladding and substrate tubes offers significant commercial advantages by reducing the time and energy required to remove organic materials from the tube bodies, by reducing environmental impact, and by reducing the amount of impurities introduced in the tubes.

Abstract: A method for implementing call-gapping controls in a telecommunications system supporting ported directory numbers comprises receiving control messages at switches and other network elements, which messages include information relating to the type of controls and parameter information for one or more options permitting present or downstream local number portability (LNP) queries. Based on such received control information, a switch or other network entity seeks to process the call toward completion using dialed number and/or corresponding LNP information, or cancel the call in the interest of overall network efficiency. Use of traffic information allows system operators and network databases to impose policies and practices such as use of dialed number for routing notwithstanding the availability of location routing number information.