Abstract: A chromator for monitoring the end point of a plasma etching process is placed remotely from the window of a plasma etching chamber and is optically coupled to the window with a fiber optic cable bundle. The fiber optic cable bundle includes a first and a second bracket. Each bracket is specially designed to be compatible with existing chromator and plasma etching chambers. The first bracket, which attaches to the chamber, includes a plurality of slots for allowing the bracket to be axially and vertically adjusted to find the optimal optical point. Accordingly, the likelihood of the chromator properly detecting the end point is maximized. An inventive method a includes optically coupling the remotely located chromator by connecting a fiber optic cable bundle having a first bracket to the chamber, axially adjusting the bracket to find the optimal location for detecting the end point, and securing the first bracket to the chamber. The second bracket of the fiber optic cable bundle is connected to a chromator.

Abstract: A CDMA communication system supports underlay transmissions and direct spread overlay transmissions such that the overlay transmissions are at least partially orthogonal to underlay transmissions. A base station supports both the underlay transmissions and the overlay transmissions and includes an interface to a mobile switching center, an underlay unit, an overlay unit and at least one radio frequency (RF) unit. The interface receives communications intended for a plurality of mobile stations serviced by the base station. These communications include underlay communications intended for mobile stations (MSs) supporting underlay transmissions and overlay communications intended for MSs supporting overlay transmissions. The underlay unit receives the underlay portion of the communications and produces underlay transmissions. The overlay unit receives the overlay portion of the communications and produces overlay transmissions.

Abstract: A wireless communication system constructed according to the present invention forwards the termination access type to the serving mobile switching center (MSC) for inclusion into a call detail record and includes an originating MSC, a home location register (HLR), a serving MSC and supporting infrastructure for each MSC. Such supporting infrastructure includes a plurality of base station controllers (BSC) and a plurality of base stations. The base stations support wireless communications within respective cells to service mobile units operating in the cells. When a call is received by the originating MSC intended for the mobile unit, the originating MSC determines the termination access type of the call, e.g., mobile to mobile directory number access, land to mobile directory number access, remote feature control port access and roamer port access, among others. The originating MSC then sends a locate request to the mobile unit's HLR.

Abstract: A spectrum yield management (SYM) system manages available spectrum within a wireless communication system. The SYM system includes at least one computer and connections within the wireless communication system to other components of the wireless communication system. The SYM system collects real-time and potential loading information for the wireless communication system and receives system operator parameters. The SYM system may support a plurality of classes with each class having subscriber members that receives services commensurate with the class. The SYM system may also support a plurality of corridors within the wireless communication system, with each corridor including at least once cell/sector. The SYM system provides signals to the components of the wireless communication and to subscriber units to influence their operation in a manner that will realize system operator goals with respect to spectrum usage.

Abstract: An architecture that adapts low speed mobile data over higher speed digital channels, comprising: Intersystem Link Protocol (ISLP) framing structure having ISLP service data units; circuit-mode data carried by the ISLP service data units; a set of call processing and handoff messages, said set including Assignment Request, Assignment Complete, Handoff Required, Handoff Request, and Handoff Request Acknowledge; an indicator incorporated into said set; and digital channels responsive to said indicator to transport the circuit-mode data via the ISLP service data units over an A-interface between a base station (BS) and a mobile switching center (MSC).

Abstract: A mobile communication system includes cell segments each associated with a base station. The base station includes transceivers capable of communicating over two sets of carriers. A first set of carriers carry circuit-switched traffic, while the second set of carriers carry packet-switched data. Co-channel interference measurements are made by mobile units or by a serving base station in each cell segment during communications of active bursts of traffic or control signaling. Such bursts may include a training sequence that is used by the measuring device to recreate a burst without interference contributions. Co-channel interference is then determined based on the recreated bursts and the received bursts. Multiple interference values may be derived and applied to an averaging filter to calculate the final interference contribution value.

Abstract: A mobile computer system capable of seamless roaming between wireless communication networks includes data processing resources for executing software, a plurality of wireless interfaces that supports simultaneous wireless connections with first and second wireless communication networks, and a network access arbitrator that routes data communicated between the software executed by the data processing resources and the first and second wireless communication networks. To permit seamless roaming, the network access arbitrator routes the data to the first wireless communication network via a first wireless interface and then seamlessly reroutes the data to a second wireless communication network via a second wireless interface. According to one embodiment, the network access arbitrator reroutes the data in response to the data bandwidths of the connections with the first and second wireless communication networks.

Abstract: A call parking and paging system includes a call parking entity and a paging entity. The call parking entity receives a call and automatically parks the call, in some operations against a designated resource. The paging entity provides a page based upon an intended recipient of the call. Upon receiving a response to the page, the call parking and paging system may then assist in delivering the parked call. The call parking and paging system may be supported by a PBX, by a telephone system central exchange or by another communication system. Additional features may include a voice processing system, a validation entity, a directory system, a messaging system and an information database. Paging resources support voice pages, electronic pages and email that apprise the intended recipient of the parked call.

Abstract: A wireless communication network includes a mobile station and a base station which are adapted to allow an ongoing voice call to be converted to a digital fax call without forcing the user to relinquish the line and to restablish a call for the purposes of a transmitting digital fax (fax from a digital device). A base station controller is adapted to respond to an analog tone which prompts the base station to set up a digital fax call even though a voice call is already in place. Similarly, a mobile station is adapted to set up a digital fax call even though a voice call is in place either when it receives the analog tone originated by the PSTN or when it receives an AT command from a personal computer indicating that a digital fax transmission is desired.

Abstract: Transistors formed according to the present invention include an oxide layer/nitride layer gate insulator and a silicide gate conductor. An oxide layer is formed to a thickness of between 15 and 25 Angstroms across a substrate and partially removed so that a thickness of approximately 4 Angstroms remains. A nitride layer is formed upon oxide layer to a thickness of 10 to 20 Angstroms. Polysilicon gate conductors are then formed above the active regions of the substrate using a deposition and patterning technique. Spacers are then formed about the polysilicon gate conductor, lightly doped drain regions are formed and then source/drain regions are formed. In forming the lightly doped drain regions and the source/drain regions, the polysilicon gate conductor is doped. Then, a silicidation metal layer is deposited upon the polysilicon gate conductors and exposed portions of the nitride layer.

Abstract: An improved method for programming a mobile telephone over the air within a mobile telephone communication network is disclosed. The mobile telephone communication network includes an over-the-air function, a customer service center, a mobile switching center, a base station controller, and multiple base transceiver stations. The over-the-air function, using the mobile switching center, the base station controller, and one of the base transceiver stations for transport, initially sends a request over the air to a mobile telephone within the mobile telephone communication network to interrogate the mobile telephone's protocol capability. In response to the request, the mobile telephone sends a protocol capability response message over the air back to the over-the-air function. The protocol capability response message includes a BAND_MODE_CAP field that describes the band and mode capability information of the mobile telephone.

Abstract: In a wireless communication system, radio resources are dynamically assigned among a plurality of intercoupled base stations based upon historical loading to reduce both localized and system interference. A plurality of loading intervals are first determined that span a loading interval sequence. The loading intervals may correspond to time based periods such as fifteen-minute, thirty-minute, hour or other time intervals. The loading interval sequence may correspond to a weekday, a weekend day or such other loading period within which loading resembles a pattern. Based upon estimated loading for the loading interval, a number of channels required to service load for the loading interval are made to meet a minimal service level is determined. An initial assignment of channels among the cells/sectors of the base stations of the wireless communication system is then made to satisfy localized radio interference criteria. Such an assignment will typically be made to preclude local reuse of channels.

Abstract: A method of fabricating an integrated circuit includes forming a gate stack upon an active region of a substrate which includes a gate dielectric, a polysilicon gate conductor and a polysilicon consumption metal layer portion. The polysilicon consumption metal layer portion is then reacted with the polysilicon gate conductor to form a high conductivity gate conductor (silicide). In one embodiment, the polysilicon gate conductor is fully consumed. In another embodiment, the polysilicon gate conductor is substantially consumed but a portion of the polysilicon gate conductor adjacent the gate dielectric remains. In forming such a gate structure, a gate dielectric layer is first formed and a polysilicon gate layer is formed upon the gate dielectric layer. A polysilicon consumption metal layer is then formed upon the polysilicon gate layer. The surface is then patterned mask so that the location of the gate structures is protected. The substrate is then anisotropically etched to form the gate structures.

Abstract: A method of measuring the differential pressure of two fluid pressure sources includes connecting a manometer having a wireless transceiver for transmitting measured pressures to a remote location and connecting a second manometer to a second pressures source. The second manometer then is operable calculate differential pressure value based upon the measured and electromagnetically transmitted fluid pressure value. If two remote manometers are used and are both transmitting their measured fluid pressure values electromagnetically, the second manometer is operable to determine a differential fluid pressure for the two fluid whose pressures were electromagnetically transmitted. An apparatus includes a manometer having a electromagnetic transceiver for transmitting and receiving fluid pressure measurements.

Abstract: A communication system facilitates both voice and data communications between endpoint devices and includes a switch and at least one peripheral device. The switch includes a switch interface while each peripheral devices includes a peripheral device interface. In combination, the switch and the peripheral device route communications through an asynchronous transfer mode (ATM) network. However, the switch interface and the peripheral device interface operate so that the communications, from the viewpoint of the switch and the peripheral device, are seamlessly transferred in a native communication protocol which may be a time switched protocol. Each peripheral device couples to a respective plurality of endpoint devices. Each peripheral device then connects to the ATM network via a respective peripheral device interface. The switch couples to the ATM network via the switch interface. In its operation, the switch sets up calls from one endpoint device to another endpoint device.

Abstract: A method of updating mobility information for a Mobile End System (MES) in a Cellular Digital Packet Data network uniquely identifies a Serving Mobile Data Intermediate System (MDIS) in a ReDirect Request (RDR) so that the Location Update Service (LUS) can complete its location updating operations. Upon attachment of the MES to the Serving MDIS, a RDR is created that includes a LUS address of the Serving MDIS and a Forwarding Service address (FSA) of the Serving MDIS. The RDR is then transmitted to a Home MDIS corresponding to the MES via a network backbone. The Forwarding Service address of the MES is then updated to the Forwarding Service address of the Serving MDIS. Then, the Home MDIS creates an RDC that includes as a destination address the LUS address of the Serving MDIS and transmits to the RDC to the Serving MDIS via the network backbone. Once the LUS operations are complete, data intended for the MES received at the Home MDIS is routed based upon the FSA of the Serving MDIS.

Abstract: Disclosed is an apparatus for initiating an over the air parameter administration (OTAPA) of a mobile station without the need for interacting with a mobile station user. A unique service option number included with the initial page indicates to the mobile station that an update is being requested. The mobile station performs a network validation check (SPASM) before permitting the update to take place. Flags are used in the network to alert the system that an attempted update was not completed because a mobile station was not update accessible for any of several reasons. The flags cause the system to update when the mobile station next becomes update accessible.

Abstract: A system includes an input, a character set mapping function and a character set compression function. The input receives binary data that includes a plurality of binary data bits that may be organized into a plurality of binary data bytes. The character set mapping function maps the binary data bits into a predetermined character set to produce a plurality of characters. The character set compression function compresses the plurality of characters using a character set compression algorithm to produce a plurality of compressed characters. After compression of the character set data, the plurality of compressed characters may be modulated via a modem and transmitted across a data link to a receiving location. At the receiving location, a demodulator receives the modulated data and demodulates the modulated data to produce the plurality of compressed characters. Then, a character set decompression function decompresses the plurality of compressed characters to produce a plurality of characters.

Abstract: A method of forming integrated isolation regions and active regions includes first forming a plurality of dielectric layers upon a semiconductor substrate. Then, a patterned mask is applied to define portions of the dielectric layers that will remain to form isolation regions and to define portions of the dielectric layers that will be removed in an etch step to create voids to the surface of the semiconductor substrate. Subsequently, epitaxially growth is employed to form active regions within the voids that were previously formed. Transistors are then formed in and on the active regions and are subsequently interconnected to form an integrated circuit.

Abstract: A method for evaluating the performance of a LEOS system. The evaluation may determine the minimum and maximum number of hops or delay time required to service a particular source and destination pair or may evaluate the LEOS system as a whole. The evaluation may be used in the design of LEOS systems or to evaluate the performance of an existing LEOS system. This evaluation may then be employed to determine how and when the LEOS system should be employed in servicing communications. A LEOS system constellation is received that is to be considered. Then, a mathematical model for the LEOS system is determined. A source/destination location pair is then selected for consideration. Shortest, longest and intermediate path lengths are then determined for the source/destination location pair for the LEOS system. For each of these path lengths, the probability of occurrence of each of these path lengths as well as a corresponding delay is then determined.