Abstract: Fabry-Perot filters are disclosed. having micro-electro-mechanical systems (MEMS) parts operable for tuning of the filters. The filters of the present invention are particularly useful in WDM and DWDM optical communication systems for multiplexing and demultiplexing channels of electromagnetically-carried data traversing the system. The filter can be miniaturized by etching or photolithographing the filter on silicon wafers utilizing MEMS technology. A MEMS device fabricated on the wafer is operative for moving a variably positioned mirror to change the length of the cavity or etalon of the Fabry-Perot filter, thereby tuning the filter to multiplex or demultiplex the channels.

Abstract: The invention provides a perceptually-based system for pattern retrieval and matching, suitable for use in a wide variety of information processing applications. An illustrative embodiment of the system uses a predetermined vocabulary comprising one or more dimensions to extract color and texture information from an information signal, e.g., an image, selected by a user. The system then generates a distance measure characterizing the relationship of the selected image to another image stored in a database, by applying a grammar, comprising a set of predetermined rules, to the color and texture information extracted from the selected image and corresponding color and texture information associated with the stored image. The vocabulary may include dimensions such as overall color, directionality and orientation, regularity and placement, color purity, and pattern complexity and heaviness.

Abstract: A system for identifying at least one selected mobile communication apparatus proximal with an identification locus includes: (a) a mobile communication base facility in communication with a plurality of mobile communication apparatuses that include the selected mobile communication apparatus; (b) at least one location-indicating device emitting a location-indicating code and is installed in each of the selected mobile communication apparatus; the location-indicating code relates a geographic location and an individual identification of a respective selected mobile communication device; and (c) at least one supported unit in communication with the mobile communication base facility. At least one of the mobile communication base facility and the supported unit have on-line access to an information store and a locator.

Abstract: A communications system includes N parallel communications channels connecting first and second devices. The N channels may include N-1 channels for carrying information symbols, and an Nth channel for facilitating deskewing and word framing. The first device may include an alignment symbol generator for generating alignment symbols on the Nth channel, and a word framing code generator for generating word framing codes on the Nth channel. The second device may include a deskewer for aligning received information symbols based upon the alignment symbols, and a word framer for determining word framing based upon the word framing codes. The word frame code generator in the first device or transmitter, and the word framer in the second device or receiver provide the desired feature of knowledge of where each word starts or begins. The start of each word may be determined in terms of a time and a corresponding one of the N-1 channels where the word starts.

Abstract: The invention concerns an arbitration scheme for permitting access to the bus of a computer. The arbitration scheme has the ability to control and reduce the delay experienced by any device by monitoring the queue length of the device and using information concerning the device, such as device rate, phase, data transfer size and queue length. Specifically, the arbiter prevents periodic accessing devices, such as audio and video samplers, from being delayed or interrupted for long periods of time once they have begun accessing the bus.

Abstract: A method and system for optically recognizing an object from a reference library of known products based on a spectrum of local radius of curvature of the object. A surface portion of an object is illuminated with a pattern of light that permits the extraction of three dimensional coordinates for a set of points on the surface portion of the object. An image data set of the surface portion of the object is then captured with a capture device that is positioned at an angular offset with respect to a source of the light. That is, the combination of the light pattern and the imaging device together generate a two dimensional captured image, from which it is possible to extract the three dimensional coordinates for the set of points on the surface portion of the object. A set of local radii of curvatures are then determined for selected data points in the image data set. A spectrum representing a distribution of the curvatures is then computed for the set of local radii of curvatures.

Abstract: Jargons are a family of application oriented languages well-suited for representing and processing complex, hierarchically structured information. A system is presented that automates most of the work of making a jargon, so practically any programmer can make a simple one in a few days. Every jargon has the same syntax, is processed with same ready-made base interpreter, and comes complete with a suite of “deluxe” features: debugger, error handler, function definition, associative arrays, variables, incremental loader, among others. The system provides a general purpose programming language for writing actions that defines the semantics of a jargon and an interpreter written in the general purpose language and customized for the jargon, by integrating the jargon's actions into the interpreter. Using jargons, the same information document may be reprocessed to generate a multiplicity of products.

Abstract: A silicate material, comprising a silicate domain and one or more substantially nonsilicate domains. The material is produced by mixing a templating mixture with a precured resin and one or more resin precursors. The templating mixture is preferably comprised of one or more surfactants, one or more alcohols and water. A precured resin is formed by reacting one or more silicate resin precursors with water, and preferably in the presence of a co-solvent and a catalyst. The precured resin is mixed with the templating mixture and preferably with an additional amount of one or more silicate precursors. The invention also includes a method for fabricating the silicate material, a holographic medium, an optical article, and a method for fabricating an optical article.

Abstract: A method and apparatus for establishing a point-to-point-to-point telephone connection between a remote telephone and a desired called telephone. The method and apparatus use a two-line base telephone unit, e.g., a home or office telephone, as an intermediary point in the telephone call to reduce long distance rates and/or to utilize features and/or information stored in the base telephone unit when the user is away from the home or office. In a first embodiment, the remote telephone makes a local call to the base telephone unit and instructs the base telephone unit to establish a telephone call with, and interconnect the remote telephone to, a called third party. In a second embodiment, the remote telephone makes a quick call to the base telephone unit instructing the base telephone unit to establish and interconnect both a telephone call back to the remote telephone and a second telephone call to the desired called telephone.

Abstract: A system for acoustic crosstalk cancellation which uses a loudspeaker arrangement including three loudspeakers, with the center loudspeaker set forward of the two outside loudspeakers. This arrangement increases the bandwidth in which effective cancellation is provided. The system provides a significant gain in performance over conventional crosstalk cancellation systems, which are very sensitive to the position of the listener's head.

Abstract: A differential amplifier circuit for amplifying an input signal and for providing an output signal representative of the input signal includes first and second amplifier circuits, and first and second coupling circuits. The first and second amplifier circuits each include first and second transistors, a resistor, and a current generator. The first coupling circuit includes a transistor, a capacitor, and a current generator, and couples a first input signal node to the first transistor of the second amplifier circuit. The second coupling circuit includes a transistor, a capacitor, and a current generator, and couples a second input signal node to the first transistor of the first amplifier circuit.

Abstract: A real-time networked telephony or computer system has a feature complex and/or applications that offer a class of features to a subscriber, including call information, and permits the subscriber to manage incoming and existing calls through available features accessed using spoken utterances. A speech processing unit coupled to the system interprets a subscriber's spoken utterances without requiring the subscriber to train the system to recognize his or her voice. The interpretation of spoken utterances is enabled by a system state database that is maintained at the speech processing unit and comprises a database of the possible system slates, including possible call flows for a call, and a database associated with the system state database comprising context-specific grammar that a subscriber may recite at respective points in the call flow. The speech processing unit may also convert message signals from the network to speech which is read to the subscriber using a text to speech translator.

Abstract: The present invention provides a network terminating unit configured to receive communication signals associated with a packet telephony system and modify said signals to maintain the quality of service of a data network associated with the packet telephony system at or below a certain level of quality of service independent of the traffic load of the data network.

Abstract: A computer implemented method and apparatus for determining if a wireless telecommunication system is operating at a reduced capacity is provided. The method and apparatus utilize call processing information associated with every sector/carrier within a CDMA base station to determine if any sector/carrier is operating at a reduced capacity while also being limited by power control (i.e., power control is blocking new users from gaining access to the sector/carrier even though the sector/carrier is operating at a reduced capacity). Thus, the method and apparatus detect blocking faults affecting the capacity of the CDMA system.

Abstract: A system and method for identifying events in a manufacturing process from a sequence of m-dimensional input data signals, m≧2 obtained from monitoring of the manufacturing process utilizing a data processor for transforming each m-dimensional input data signal to a set of output data signals based on an orthogonal polynomial transform function, wherein the input data signals are used as coefficients in evaluating the polynomial transform functions. The data processor also integrates the transform function within the defined limits of the transform function to determine a scalar value as a function of time. A display system may be used to display a graph of the scalar values as a function of time for visually identifying events or the processor may identify events based on detected scalar values. The transform function may be Fourier, Chebyshev, Legendre or other polynomial type function.

Abstract: The invention relates to a method and a device for wavelength stabilizing for multichannel optical transmission systems. An optical multiplexer is used directly for the generation of the optical total signal. This makes possible a simple electronic regulation of wavelengths of the optical carrier signals through analysis of the amplitude values of low-frequency signals, which modulate the optical carrier signals by means of amplitude modulation.

Abstract: A wireless data network that provides communications with a Point-to-Point Protocol (PPP) server is disclosed. A home network includes a home mobile switching center and a wireless end system, the home mobile switching center including a home registration server and a home inter-working function, the wireless end system including an end registration agent, the end registration agent being coupled to the home registration server. The wireless data network also includes a PPP server, wherein a message is coupleable from the end system through the home inter-working function to the PPP server.

Abstract: A wireless multimedia messaging communications method and apparatus that permits a subscriber to a wireless telecommunications service to receive and generate multimedia messages from known wireless personal communications devices, i.e., cellular/PCS telephones. A multimedia message may be received by the network and selectively delivered to a subscriber of the wireless service. Upon receipt of the message, the network determines an appropriate action to take with respect to the message based upon a profile of the subscriber. The subscriber is then notified by the network of the message and then delivers the message and any multimedia attachments to the message to the subscriber, according to a delivery indication sent by the subscriber to the network. Advantageously, the method allows for the conversion of messages as appropriate, i.e.

Abstract: A computer based data analyzing system includes a memory storing a plurality of different log files. The memory is accessed to select a group of log files for simultaneous display in corresponding windows of a display device. A scroll command accesses the memory to simultaneously scroll the group of log files displayed in the corresponding windows with respect to a common parameter, such as a time stamp.

Abstract: An apparatus, method and system are provided for roamer originated automatic telecommunication conferencing and broadcasting. The system embodiment includes a first switch for reception of a first incoming call leg from a roaming mobile unit or from another telecommunication device outside its assigned serving area. The first incoming call leg preferably designates a multiple leg service, such as a telecommunication conference, and also designates a subscriber group. Each particular subscriber group is predefined, and consists of a list of directory numbers to be included within the conference or broadcast session. In the various embodiments, the first switch communicates with a second switch or a database, and obtains a routing directory number to reroute the first incoming call leg, to form a second incoming call leg to the second switch.