Abstract: A PBX (14) is employed as a feature server for another telecommunications subsystem (11), such as a broadband or a multi-media subsystem or another PBX. The PBX's feature set is thus made available to the other subsystem. Also, inter-PBX feature transparency is implemented thereby.

Abstract: In base station cellular telephony transmit-receive systems which provide multiple channels, the transmitter and receiver circuits which respectively, modulate baseband signals on to channel carrier waves and recover baseband signals from channel carrier waves are included in homogeneous assemblies of such transmitter circuits or receiver circuits which are surface mounted on printed wiring boards. Those transmitter circuit assemblies and receiver circuit assemblies include surface mounted combiner and splitter devices, respectively, which have multiple ports connected by microstrip transmission lines to, as the case may be, the transmitter circuits or receiver circuits of the assemblies in which those devices are includes. The described arrangement results in reduction relative to the prior art in the number of coaxial cables used in such systems.

Abstract: A new dimension for growth is presented for the generalized growable packet switch architecture. That dimension is time and by rolling routing requests around a distributed out-of-band controller ring, ATM cell traffic can be controlled and spread across two time intervals. The rolling of routing requests and the resulting time spreading of the cell traffic through the distribution network averages out bursts and localized hot spots, thereby reducing blocking and improving cell loss probabilities with only small increases in hardware cost and complexity.

Abstract: An end-user communicating device and method for enabling a user-selected communications carrier network to download data into a RAM within the end-user communicating device in response to a telephone call initiated by a user of the end-user communicating device to the carrier network to access a database within the carrier network. The data includes a carrier access code that is used to establish intraLATA toll calls and exchange numbers included in an intraLATA toll calling area associated with origination information obtained during the telephone call, such as the telephone number of the end-user communicating device. The end-user communicating device prepends the carrier access code to subsequently dialed telephone numbers that contain one of the exchange numbers included in the intraLATA toll calling area.

Abstract: A multi-dimensional transformer for a group of input coefficients representative of a signal or signals with a single transformer and two transpose buffers is described. A two-dimensional transform is performed by a multiplexer and a single one-dimensional transformer. In addition, the one-dimensional transformer preferably includes two separate processors, each performing part of the one-dimensional transform. Each processor may suitably be constructed of a number of primary cells, each of which includes a multiplier, addition circuit, and a register. The registers of the primary cells are connected together in a circular manner. Alternatively, a partial product circuit can be provided in place of the multipliers.

Abstract: A technique is provided for the association of constraints with data object classes in an object-oriented database. Given a constraint comprising zero or more quantifiers followed by a quantifier-free boolean expression, a non-primitive reference expression is identified in the boolean expression. The constraint is then modified as follows. First, the primitive reference expression at the head of the identified non-primitive reference expression is replaced with a variable. Then a universal quantifier which quantifies the added variable over all data objects in the class comprising that primitive reference expression is added to the constraint. Finally, a disjunctive condition specifying that the added variable is not equal to the primitive reference expression is added to the boolean expression. The modified constraint may then be associated with the class comprising the aforesaid primitive reference expression.

Abstract: A wavelength division multiplexing multi-frequency optical source is used to provide downstream transmission of information signals at discrete optical wavelengths from a central office to a plurality of optical network units. A passive optical demultiplexer in a remote node routes the downstream information signals to the optical networks according to optical wavelength. Broadband incoherent sources are used to provide upstream information signals at discrete optical wavelengths which are multiplexed and then routed to the central office for demultiplexing by the passive optical demultiplexer. A wavelength selective coupler in the central office and in each optical network unit combines and segregates downstream and upstream signals of different optical wavelengths for routing to a desired destination.

Abstract: The invention relates to a measuring device for measuring the phase deviation of at least a subordinate transport unit of a synchronous signal transmitted through a synchronous transmission system. The measuring device comprises a transmitter unit for forming the synchronous signal to be transmitted, a first desynchronizer for splitting up the synchronous signal and for detecting at least a given byte of the subordinate transport unit, a second desynchronizer for splitting up the received synchronous signal which has passed through the transmission system and for detecting at least the given byte in the received synchronous signal, and an evaluation unit for calculating the phase deviation from the moments of detection of at least the given byte in the transmitted and the received synchronous signals.

Abstract: A method to allow certain types of adjunct applications for telecommunications networks that require caller interaction during call setup to temporarily access the adjunct and then be released back to the network for routing to the final destination. Specifically, when the call enters the network, the network originating switch redirects certain calls to the adjunct. The adjunct may be locally homed directly off the originating switch or may be homed remotely off a centrally located switch. Once the call has been routed to the adjunct and caller interaction has been completed, the adjunct releases the voice connection back to the switch which then routes the call to its final destination.

Abstract: The present invention discloses a method of and apparatus for regulating the power of signals transmitted by transmitting units, such as mobiles or base stations, that are using the same channel in a cellular radio system. An iterative process is disclosed in which the demands of synchrony and coordination among the transmitting units are relaxed. The power of the signals converges at a geometric rate to optimal transmission powers, where the optimal transmission powers are defined as the minimum powers required to maintain the ratio of carrier power to co-channel interference power at least as large as some pre-fixed target value obtained from quality of service considerations. As a result of relaxing the demands of synchrony and coordination, expensive clock or timing mechanisms are not required, thereby reducing the costs of power control.

Abstract: The gate electrode of a polysilicon gate MOS transistor--the transistor having either a thin film polysilicon substrate or a bulk monocrystalline substrate--has a pair of contiguous regions: a heavily doped gate electrode region near the source, and a lightly doped gate electrode region near the drain. The gate electrode region near the drain is thus doped significantly more lightly, in order to reduce electric fields in the channel region in the neighborhood of the drain (and hence reduce field induced leakage currents) when voltages are applied to turn transistor OFF. At the same time, sufficient impurity doping is introduced into the gate electrode region near the source in order to enable the transistor to turn ON when other suitable voltages are applied.

Abstract: A low-voltage drop current regulator regulates the current in a data interchange circuit. In one embodiment, the low-voltage drop current regulator couples a positive power supply voltage to the power supply pin of a driver integrated circuit. In another form of the invention, the low-voltage drop current regulator is placed in series with the individual output leads of a driver integrated circuit to couple the respective output signals to respective pins of the data interchange circuit.

Abstract: Techniques for analyzing and controlling operation of a system of cooperating processes. A library of system calls used by the processes is replaced by a dynamically-linked library which performs the system calls and also sends messages indicating that the system calls have been performed. The messages are received by a display system which responds to the messages by making a graphical display showing the current state of the system of processes. The graphical display displays the system of processes as a tree. Nodes in the tree represent the processes in the system and resources such as files used by the processes; edges in the tree represent relationships between processes and other processes or resources. Users may control which system calls result in messages, may control the rate at which the display system responds to the messages, and may also control execution of the processes.

Abstract: Application programs compiled for a first, "source", computer are translated, from their object form, for execution on a second, "target", computer. The translated application programs are linked or otherwise bound with a translation of the source computer system software. The translated system software operates on the image of the source computer address space in the target computer exactly as it did in the source computer. The semantics of the source computer system software are thus preserved identically. In addition, a virtual hardware environment is provided in the target computer to manage events and to deal with differences in the address space layouts between the source and target computers.

Abstract: Apparatus and methods for specifying contexts for machine-executable instructions. Modern graphical user interface systems employ the callback programming style. In this style, a system event handler responds to an event by executing application-level callback code and providing event information concerning the event as part of the context of the execution. The technique disclosed herein uses callback information names to specify the relationship between the event information and the execution context. The callback information names are defined globally, but represent the event information for a single execution of the callback code. Using the callback information names, it is possible to define the callback code in the function which adds the callback code to the graphical user interface system.

Abstract: In accordance with the invention, an optical filter comprises a plurality of optical fibers having a coupling region where the axially extending cores are closely spaced within a common cladding. The coupling region includes a long period grating for selectively shifting light of selected wavelengths from guided modes into non-guided modes. These non-guided modes are picked up by an adjacent core and light of the selected wavelengths is thus shifted from one core to another. The result is an optical filter particularly useful as a demultiplexer or a tapping device. In one embodiment the grating is formed in one of the cores. In an alternative embodiment, it is formed in the common cladding.

Abstract: A telephone station set is arranged to automatically prefix calls with the access code of a particular, preselected IXC. In one embodiment, the telephone station set is arranged to have at least one locking button that corresponds to an IXC and whenever the locking button is in the selected state, any calls originated from that telephone station set are automatically prefixed with the access code of the IXC to which the button corresponds. Whenever there aren't any IXC buttons selected, only those digits corresponding to the buttons dialed by the calling party are transmitted to the LEC. In another embodiment, the telephone station set incorporates a slide switch having IXC positions and a "No IXC" position.

Abstract: Telephone calls and corresponding caller identification information are delivered to a multi-line user having a plurality of agent terminals by a plurality of communications lines with one of the communications lines being a common voice-data communications line. All telephone calls and corresponding caller identification information are routed over respective voice and data channels in the common voice-data communications line, if such line is not busy with a previous caller to the multi-line user. If such line is busy, then the caller identification information is routed over the data channel of the common voice-data communications line while the call is routed over one of the other communications lines.

Abstract: A method and processing system for the indexing of data for one or more users involving the steps of receiving primary data, delineating episode data from the primary data, generating media representations to correspond with the episode data, generating a table of contents from the episode data and media representations in real time, and storing and/or presenting the table of contents on a graphical user interface. Primary data may constitute audio data, video data, text data, combinations of these as well as any medium-generated data which may be in or converted to digital form. Episode data is generated on the basis of significant video images determined by scene changes and other information. In addition, episode data may be based on a significant audio change, delineated from the primary data, e.g. based on speaker changes and other information.

Abstract: Disclosed is a low bit rate audio and video communication system which employs an integrated encoding system that dynamically allocates available bits among the audio and video signals to be encoded based on the content of the audio and video information and the manner in which the audio and video information will be perceived by a viewer. A dynamic bit allocation and encoding process will evaluate the current content of the audio and video information and allocate the available bits among the audio and video signals to be encoded. In addition, an appropriate audio encoding technique is dynamically selected based on the current content of the audio signal. A face location detection subroutine will detect and model the location of faces in each video frame, in order that the facial regions may be more accurately encoded than other portions of the video frame.