Abstract: A mobile station communicates with an RSVP-aware network over an air interface standard that has a wireless quality of service standard. The mobile station transmits an RSVP message to an end terminal through the network's RSVP-enabled routers. The end terminal transmits an RESV response message back to the mobile station. A base station controller intercepts this message and sets up the wireless resources if possible.

Abstract: A rack assembly includes a nineteen-inch sub-assembly coupled to a four-inch extension that comprises two substantially closed side panels adjacent to each other, two substantially open sides adjacent to each other, a closed top and bottom, a plurality of mounting flanges for attaching the extension to a nineteen-inch sub-assembly and a plurality of embossments for receiving mounting hardware for installing the sub-assembly and extension into a twenty-three-inch rack. The four-inch extension is formed not only to allow a nineteen-inch rack sub-assembly to be installed in a twenty-three-inch rack, but also is formed to conduct air exhausted from a side of the nineteen-inch sub-assembly towards a rear end of the twenty-three-inch rack.

Abstract: An integrated oscillator that may be used as a time clock includes circuitry that oscillates about an RC time constant, which RC time constant is adjustable to provide a desired frequency of oscillation. More specifically, the oscillator includes a capacitor array that has a plurality of capacitors coupled in parallel wherein each capacitor may be selectively included into the RC time constant or selectively excluded there from. Rather than setting the capacitance values to a desired capacitance value, a system for adjusting the time constant includes circuitry for measuring an output frequency and for comparing that to a certified frequency source wherein the time constant is adjusted by adding or removing capacitors from the capacitor array until the frequency of the internal clock matches an expected frequency.

Abstract: A rack-mountable system enclosure for limiting the escape of internally generated electromagnetic interference includes a system case, a front panel, a back panel, overlapped seams formed to couple the front panel and the back panel to the system case such that no gaskets and a minimal number of fasteners including welds, screws and rivets are required, at least one front opening through which communication media passes and apertures formed within the system case for providing air inlet and egress ports.

Abstract: An application module, that is part of an electronic assembly including a controller module, is coupled to a backplane bus structure. The backplane comprises a differential bus(s) having a TX and RX data signal, a differential clock signal, and a single ended collision detection line. The application module comprises differential bus transceivers that are controlled by differential bus control logic on the application module. The control logic compares data bits received over a collision detection line with the data bits the application module originally transmitted. If the data is not the same, a collision has occurred and the control logic places the bus transceivers into a high impedance state. A data packet controller on the application module can only detect certain types of collisions that occur in the single ended environment. The control logic enables the data packet controller to recognize a collision that it normally would not.

Abstract: A load management system includes a load management control center, at least one power management termination system, a plurality of power line nodes, and a plurality of load management devices. This system is operable so that the load management control center may independently, or as a group, control each of the load management devices. According to one aspect of the present invention, the load management control center accesses the load management devices across a communication network that includes a power line network. The load management devices may be addressed individually. Alternately, the load management devices may be addressed as a group or set of groups by the load management control center during load shedding operations. Load management devices may include meters that are communicatively coupled to the load management control center.

Abstract: A subassembly includes a plurality of card guides formed to receive card assemblies and also to conduct air for cooling purposes to improve cooling of components on the card guide. The card guides are particularly formed to place the cards in a location to facilitate airflow and to more evenly distribute the airflow. The invention further includes a method for designing the card guides to achieve the stated functionality. The method of designing the card guides includes determining a first and a second volume of space that is desired in relation to the amount of expected heat that is to be generated within the first and second volumes of space.

Abstract: A latch assembly for removably attaching a motherboard within an enclosure and for removably attaching a co-planar daughter board to the motherboard includes a first latch that is pivotally attached to the motherboard and a first latch actuator, wherein in an engaged position, the first latch extractor engages a first extraction surface of the enclosure. The assembly further includes a second latch that is pivotally attached to the daughter board, the second latch having a second latch extractor and a second latch actuator, wherein in the engaged position, the second latch extractor engages a second extraction surface of the motherboard. The first latch and the second latch pivot in adjacent planes. The second latch, however, may be disengaged to remove the daughter board from the motherboard without disengaging the first latch.

Abstract: A pet training device comprises a wireless command module, a wireless receiver module connected to an adjustable collar assembly. The wireless command module is used to select a stimulation mode, a stimulation duration, and a stimulation intensity level through the use of one-touch digital switches located on the wireless training device front panel. The selected functions are displayed on an LCD. Stimulation commands are transmitted to the wireless receiver module where they are demodulated into control signals that trigger a shock, a vibration, or a shock and vibration. When the wireless receiver module is placed in a no-bark mode, the wireless receiver module will generate a shock when triggered by a bark sensor. Power controllers built into both the wireless command module and wireless receiver module optimizes battery life by turning the training devices off after a period of inactivity.

Abstract: A circuit board assembly for use in a communication system switch includes a motherboard that comprises a planar, substantially rigid, and substantially dielectric circuit, a back plane connector affixed to the circuit board and a pair of daughter board connectors affixed to the circuit board, each of which is for coplanerly coupling with a daughter board. Each daughter board includes rigid dielectric circuit board, a plurality of integrated circuit components disposed thereon, at least one media coupler affixed to the circuit board and a motherboard connector affixed to the circuit board for coplanerly coupling with the motherboard. Finally, a pair of guides affixed to the circuit board for removably engaging a pair of daughter board slot assemblies of the motherboard to mate the daughter board with the motherboard.

Abstract: A circuit and a method for limiting a voltage to a specified value (e.g., a rail voltage) without clipping thereby includes a pair of MOSFETs that turn on when a specified bias voltage is reached to either add to or sink current from the input node of the resistive load responsive to fluctuations in current going through the output resistive load to maintain a constant current through it. A plurality of biasing circuits is provided that control the turn on voltage levels for the MOSFETs to achieve the desired operation. The biasing circuits include circuit components that are matched to circuit components within the circuitry that adds and drains current to the output resistive load including a resistive load that matches the output resistive load.

Abstract: A time division multiple access cellular communication system supports a packet channel is alterable between a packet control channel configuration and a packet traffic channel configuration. In the packet control channel configuration, the packet channel may provide only control functions or a combination of control and traffic functions. The packet channel may also be configured in a packet traffic configuration so that the packet channel provides only packet traffic functions. In this configuration, another packet channel must be configured in the packet control channel configuration to provide control functions for the packet traffic only packet channel. A Digital Control Channel (DCCH) includes information relating to a Beacon Packet Control Channel (PCCH), which contains information on the allocated packet channels. The subscriber unit initiates its packet data operations within the system.

Abstract: A method and apparatus for providing subscriber alerts that warn the subscriber to severe weather and traffic conditions is provided wherein the subscriber may receive the alerts on a cellular phone, on a public switched telephone network phone (PSTN), on a pager, or by e-mail. Additionally, the subscriber may receive wakeup and reminder calls according to his or her subscriber profile If a defined weather condition is occurring or is about to occur in a defined zone, for example, or if a specified traffic condition is occurring on the defined traffic artery the subscriber receives alerts as specified in a subscriber profile stored within a server coupled to an intelligent network (IN) type of PSTN. A server, e.g., an SCP or IP, generates signaling to prompt an autodialer to dial a call to the subscriber and an IVR to play the select message.

Abstract: A wireless communication system determines whether an increased billing rate will be applied for an incoming call by comparing an Originating Rate Center ID for the call with a current location of a mobile unit. Based upon this determination, the wireless communication center provides a distinctive ringing alert to a serviced mobile unit when an increased billing rate will be applied. An increased billing rate may be applied when the mobile unit terminates a call outside of its Home Zone and/or outside of the Orginating rate Center of the call. The user of the mobile unit may then elect to receive the call based upon the knowledge that the call is a increased billing rate call or a regular billing rate call.

Abstract: A voice quality performance evaluator includes an interface, memory, processing circuitry and may include a network interface. The interface is adapted to couple to a voice transmission path under test. The memory couples to the interface and is adapted to store an original voice sample and a modified voice sample. The processing circuitry couples to the interface and to the memory, retrieves the original voice sample from the memory and transmits the original voice sample to the voice transmission path under test via the interface. The processing circuitry also receives the modified voice sample via the interface from the voice transmission path under test. Finally, the processing circuitry compares the original voice sample to the modified voice sample in the frequency domain to evaluate the performance of the voice transmission path.

Abstract: A wireless communication system selectively delays serviced data communications to produce a desired level of voice communications capacity. The system first determines whether the wireless communication system has sufficient voice communications capacity. If it is determined that the wireless communication system has insufficient voice communications capacity, the system determines a data communications delay that is required to provide sufficient voice communications capacity. Based upon its determination, the system then selectively delays some or all of the data communications to create the sufficient voice communications capacity. In one operation, one data communication serviced by the wireless communication system is selectively delayed to create the sufficient voice communications capacity. In another operation, a plurality of data communications serviced by the wireless communication system are selectively delayed to create the sufficient voice communications capacity.

Abstract: A wireless communication system constructed according to the present invention interfaces with a Service Control Point (SCP) to provide location information for a serviced mobile unit. The SCP sends a locate request to a Home Location Register (HLR) of the wireless communication system, requesting the location of the serviced mobile unit. The HLR then accesses a serving Mobile Switching Center (MSC), the serving MSC being identified by the HLR as currently servicing the mobile unit. Depending upon the particular constraints of the requested operation by the SCP (e.g., immediate locate request or most recent locate request), the serving MSC either retrieves location information for the mobile unit from its Visitor Location Register (VLR) or sends a page to the mobile unit. The mobile unit responds to the page and, based upon the cell/sector from which the mobile unit responded, the serving MSC determines an approximate location of the mobile unit.

Abstract: A method of forming a transistor includes forming a source/drain implant in the initial processing stages just after the formation of the isolation and active regions on the substrate. A uniform nitride layer is formed over the surface of the substrate on top of a dielectric layer. A silicide metal is then deposited and reacted with the underlying silicon to form a salicide over the source and drain regions. A second dielectric layer is then formed on top of the salicide and is formed to be selective relative to the nitride layer. Thereafter, the nitride layer is removed and a final gate dielectric is then formed. Finally, a metal gate conductor is formed on top of the gate dielectric. The metal gate conductor is formed only after all annealing steps are performed to prevent the metal from spiking through the gate dielectric thereby ruining the device.

Abstract: A method of performing a nitride strip process step for a plurality of semiconductor wafers includes partially draining the chemical solution within a chemical bath after every nitride strip in which the oxide etch rate is within a specified range. If the oxide etch rate is above the specified range, the partial drain is performed. Once the etch rate falls within the range, the partial drain is performed every time a bath increment signal is received. If the etch rate falls below the specified range, then the bath is completely drained so that the solution may be replaced with fresh chemicals. While it is generally desirable to minimize the amount of field oxide that is removed during the nitride strip process step, the field oxide etch should be maintained at a specified level because, when below that level, the chemical solution silicon content is too high risking the possibility that the silicon will precipitate and cause undesirable effects including coating the wafers being stripped of nitride.

Abstract: A telephone network redirects calls intended for an Internet Service Provider (ISP) to one of a plurality of available Internet Protocol (IP) gateways operated by the ISP. A call is received by the telephone network at an originating switch from a subscriber's calling terminal, the call directed to a toll-free-number or a central number (TFN) for the subscriber's ISP. The originating switch interacts with the signaling network via a coupled service switching point (SSP) to request a Dialed Number (DN) corresponding to the TFN. A destination switch (or a Private Branch Exchange “PBX” coupled to the destination switch), instead of completing the call, redirects the call to a new IP gateway coupled to a new destination switch or coupled PBX. The call is then routed from the calling terminal to the new IP gateway via the originating switch and the new destination switch via a lowest point in the traffic network.