Abstract: A system for providing a communication path includes a platform, a paging network, a mobile unit, and a mobile voice communications network. The platform delivers a paging signal comprising call setup information to a page receiver of the mobile unit using the paging network. A transceiver of the mobile unit selects a particular NAM in response to the call setup information and registers with the network using the selected NAM to enable the establishment of a communication path between the platform and the mobile unit.

Abstract: A reduced keyboard disambiguating system (50) having a keyboard (54) with a reduced number of keys. A plurality of letters and symbols are assigned to a set of data keys (56) so that keystrokes entered by a user are ambiguous. Due to the ambiguity in each keystroke, an entered keystroke sequence could match a number of words with the same number of letters. The disambiguating system includes a memory (104) having a number of vocabulary modules (110). The vocabulary modules contain a library of objects that are each associated with a keystroke sequence. Each object is also associated with a frequency of use. Objects within the vocabulary modules that match the entered keystroke sequence are identified by the disambiguating system. Objects associated with a keystroke sequence that match the entered keystroke sequence are displayed to the user in a selection list (76). The objects are listed in the selection list according to their frequency of use.

Abstract: The ink film unit is configured by fixing the fixed shaft that penetrates the inside of the hollow, cylindrical feeding reel, right side plate and left side plate and attaching the winding reel to the right side plate and left side plate in a pivotable manner. The main unit is provided with the grooves that house and position the right side plate and left side plate, and the U-figured holders that hold the feeding reel and winding reel. This makes it possible to reduce the space for installation of the ink film unit, reducing the size of the facsimile apparatus.

Abstract: An improved system for detecting and preventing telecommunications fraud prior to call connection, in which attempted calls are screened for fraud at the point of calling card validation in the SCP. The SCP accesses a database holding a variety of fraud decision nodes that may be interrelated and grouped together to cooperatively define fraud screening trees against which attempted calls may be tested. A fraud screening tree ultimately produces a fraud prediction based on a variety of information concerning the attempted call. The present invention therefore facilitates fraud screening with greater granularity and customization.

Abstract: The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a hole having a diameter of 1 inch, and in some cases even smaller. In one aspect, the tool assembly is designed to significantly conserve power. Sensor readings may be taken at different schedules to conserve power when frequent readings are not required. Also, internal electronics of the tool assembly can be operated at a low voltage. In one aspect, the tool assembly is assemblable by simple rotatable engagement of the components, with electrical interconnections being made automatically by the rotatable engagement without keying of components. In another aspect, the tool assembly is networkable with other like tool assemblies and monitorable from a central location.

Abstract: In a method of sharing physical resources associated with a server system between the server system and a client system, a respective associated address designating a given location in a program memory and identifying the start of one of a plurality of tasks which access the physical resources is associated with the value assumed by a first parameter contained in a first field of the access request message. Respective values assumed by or associated with second parameters contained in a second field of the access request message with predetermined first locations are written in a data memory. The associated address is loaded into an execution register of the processor circuit in order to initiate the task. The steps of this method are implemented by an interface device and a program required for operation of the interface device is dissociated from each task of the plurality of tasks.

Abstract: A single, common correlation filter (CF) core is provided in a wireless system using CDMA. A plurality of channels with different data rates are provided in the wireless system. The channels provided in the wireless system include the access channel, the maintenance channel, and the traffic channel in which information (e.g., pilot or data symbols or both) is transmitted at the tier 1, tier 2 and tier 3 rates. The data rate for transmitting the information is programmable by digital signal processor (DSP). A user-unique code, such as a PN code, is applied to the information being transmitted in the channels of the wireless system. The information is QPSK modulated and transmitted in any one of the channels at any data rate. The transmitted information is correlated at the smallest data rate (i.e., the tier 1 rate) in the correlation filter (CF) of the wireless system by time multiplexing delayed versions of the PN code to the correlation filter core.

Abstract: A system for connecting multiple repeaters into a single collision domain comprising a first repeater, a second repeater and a stacking bus. The first repeater has a plurality of network ports. The second repeater also has a plurality of network ports. The stacking bus connects the first repeater and the second repeater and is configured to relay status signals between the first and said second repeaters.

Abstract: Consumer process equipment (CPE) for cost effective caller identification (CID) and call-waiting (CW) for a multi-line telephone includes a single CIDCW detection circuit and a single switch for coupling the single CIDCW detection circuit between a plurality of telephone lines. The CPE is able to process CIDCW information over a plurality of telephone lines by dynamically switching the single switch from one telephone line to another, depending upon the current state of the CPE.

Abstract: A general multi-function optical filter for future smart, high density wavelength division multiplexed (WDM) communication and network system applications using a Michelson-GT interferometer (MGTI) is invented. MGTI filter is a typical Michelson interferometer in which one of its reflecting mirrors is replaced by Gires-Toumois resonator (GTR). One unique feature of this device is that it can function as channel passing, channel dropping and wide bandpass filters depending on the interferometer arm length difference. The output of these functions is available in a single port. Other interesting features of this element are (1) that linewidths of both channel dropping and channel passing filters are twice as narrow compared with typical Fabry-Perot filter having similar parameters, (2) that visibility of the output for three functions is always unity regardless of the mirror reflectance value, and (3) that bandpass filter has an excellent, near-perfect, box-like response function.

Abstract: The invention is a system for interfacing a GR-303 system with a broadband system. The broadband system can be an ATM system. The invention can process the GR-303 signaling to select ATM connections and then interwork the GR-303 connections with the selected ATM connections. The invention can interwork GR-303 signaling and SS7 signaling. The invention can also process SS7 signaling to select GR-303 connections and then interwork ATM connections with the selected GR-303 connections.

Abstract: A phase locked loop (PLL) circuit is provided having a DC biasing circuit that enables the PLL to operate with a single power supply voltage, and which also eliminates the dead zone associated with the phase detector of the PLL. The PLL includes a phase detector for detecting the phase difference between a reference clock signal and a feedback signal and for generating phase pulse outputs corresponding to this phase difference, an integrator coupled to the phase pulse outputs for generating a phase voltage in proportion to the pulse width of the phase pulse outputs, and a voltage controlled oscillator coupled to the phase voltage for generating a local oscillator signal that is synchronized to the reference clock signal and which is coupled to the feedback signal. The DC biasing circuit generates a variable pulse width bias signal that is merged with the phase pulse outputs in order to polarize the integrator inputs at a particular DC bias level.

Abstract: A method for setting optimal phase settings for a plurality of antenna elements of a subscriber unit in a CDMA cellular telephone system includes the steps of detecting a received pilot signal at each of the plurality of antenna elements, combining the received pilot signal detected at each of the plurality of antenna elements with a summation circuit to produce a combined received pilot signal, determining a quality metric for the combined received pilot signal and adjusting phase settings of at least one of the plurality of antenna elements on the subscriber unit in response to the quality metric of the received pilot signal. These steps are repeated until the determined quality metric of the combined received pilot signal reaches a maximum.

Abstract: The present invention includes a method, system, and apparatus for providing communication control. The invention includes a method in which signaling is processed externally to a switch before it is applied by the network elements. The processor is able to select network characteristics and signal the network elements based the selections. A network employing the processing method is also included, as well as a signaling system that employs the processing method.

Abstract: An apparatus for doubling the amount of power that can be safely applied to a circulator-based isolator, which is made up of an input hybrid which receives an RF signal and outputs two divided RF signals, a Y-junction circulator that receives one of the divided RF signals at one of the circulator ports and outputs it at another circulator port, an output hybrid which receives the two divided RF signals, combines them, and sends them on, the output hybrid simultaneously receiving a returned signal, dividing it, and outputting two divided returned signals, one divided returned signal going to the circulator and the other divided returned signal going directly to the input hybrid, a phase retarding circuit which takes the half of the divided returned signal that went back to the circulator and retards its phase by 180 degrees and sends it back to the circulator, where it goes to the input hybrid as well, to be recombined with the other half of the returned signal and attenuated.

Abstract: A method and system for creating and sending call disposition messages. When a calling card call is validated by the telephone network which issued the card, the card issuing network can request a call disposition message. In response to validation of the call, a billing detail record is generated and stored. When the call is completed. an operator service record is generated. The operator service record and its corresponding billing detail record are matched with each other, then merged to form a merged operator services record. The merged operator services record is processed to add pricing information. If the card issuing network had requested a call disposition message, the merged operator services record is sent to a gateway coupled to the card issuing network where it is reformatted to create a call disposition message. The call disposition message is then sent to the card issuing network.

Abstract: An FM demodulator circuit with reduced sensitivity to noise and performance nearly identical to theoretical predictions. The FM demodulator is a time sampled detector for binary shift key (BFSK) modulated signals. Its inputs are an in-phase and a quadrature outputs of a receiver, which have been oversampled by a predetermined factor with respect to the data rate. The demodulator circuit differentiates the in-phase and the quadrature input signal by computing the difference between the current signal value and the signal value delayed by one clock period. The differentiated values of the in-phase and the quadrature signals may be changed based on the sign of the quadrature and the in-phase signals respectively to produce modified values of the differentiated in-phase and quadrature signals.

Abstract: A system including coding and decoding circuits provides for resolution of the phase ambiguities in pragmatic trellis-coded PSK modulation transmissions. An error correcting coder, such as a convolutional encoder, precedes the modulator for reducing the effect of noise in inducing phase errors. A corresponding decoder appears at the reception end of the communication system. A differential encoder and decoder automatically remove the possible phase ambiguities, and operate in conjunction with the error correcting encoder and decoder. Each of the ambiguity-removal differential encoder and the decoder act as an operator upon its input signal. In order that both the error correcting encoder and the ambiguity encoder immediately precede the modulator, the ambiguity removal circuitry is placed between the error correcting encoder, and is constructed as a combination of differential encoder and inverse differential encoder.

Abstract: A method and apparatus for preventing network rerouting when the overhead associated with the reroute operation could result in system resources being overwhelmed. The system monitors link congestion and CPU utilization that will be caused by rerouting. A comparator determines whether the amount of congestion and CPU utilization is beyond an acceptable predetermined threshold. A reroute control unit prevents rerouting if the amount of link congestion and CPU utilization exceeds the predetermined threshold.

Abstract: An apparatus and method for A/D conversion is provided. The apparatus provides for multi-path multi-channel (MPMC) pipelined A/D conversion. Unlike prior art designs in which the handling of multiple channels requires a linear increase in the associated circuitry and components, the current design scales for multiple channel A/D conversion with less than linear scalability. The A/D converter comprises a plurality of stages and interfaces between adjacent columns of the stages. The stages each include an input, a first output, and a second output. Each of the stages is responsive to an input signal applied to the input to output at the first output a bit signal corresponding to at least one significant bit of the input signal and to output at the second output a residue signal corresponding to a difference between the input signal and the bit signal. The stages are arranged in columns.